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Keysight 53220A/53230A 350 MHz Universal Frequency Counter

1. The sequence continues with the next reading in the sample count Specifying a time out prevents the instrument from pausing indefinitely if for some rea son a measurement is unable to complete The measurement time out is set with the command SYSTem TIMeout lt time gt MINimum MAXimum INFinity DEFault SySTem TIMeout MINimum MAXimum DEFault query form time is the specified time out in the range of 10 ms to2 000s with1 ms resolution The time out setting can affect reading throughput when multiple readings are taken during the trigger cycle Trigger delays gate times and gate delays Chapter 5 should be considered when setting an optimum time out value The time out setting is stored in non volatile memory and is not changed following a reset RST or instrument preset SYSTem PREset or Preset key 53220A 53230A User s Guide 53220A 53230A Measurements 3 When shipped from the factory the measurement time out is set to 1 second Specifying a time of 9 9E 37 or sending the SYSTem SECurity IMMediate command dis ables the time out When the time out is disabled the instrument will wait indefinitely for the measurement to complete SCPI Syntax Conventions Programming the counters through their LAN USB and GPIB interface is achieved using the Standard Commands for Programmable Instruments SCPI control language A typical example of the SCPI language syntax is shown for the followin
2. Gate Src Setup Gate Out 4 Chan 2 Chan 2 1 Off On Coupling Impedance Range Bw Limit Probe AG DC 1MQ 509 5V Sov Off 100k Nonc 10 1 53220A 53230A User s Guide 167 5 Triggering and Gating For external sources INPut 1 and INPut2 Chan and Chan 2 softkeys a fixed input threshold voltage must be specified in addition to the gate signal polarity These parameters are set with the commands INPut 1 2 LEVel 1 2 ABSolute lt volts gt MINimum MAXimum DEFault INPut 1 2 LEVel 1 2 ABSolute MINimum MAXimum DEFault query form The specified edge polarity of the gate signal crossing the threshold opens the gate The opposite edge polarity of the signal crossing the threshold closes the gate When using sources INPut 1 and INPut2 the channel selected as the gate source cannot be the same channel on which input events are totalized That is the gate source channel cannot be involved with the measurement To set the polarity and level when using an input channel as the gate source select the gate polarity source and threshold level CONF TOT TIM SENS TOT GATE POL POS set polarity SENS TOT GATE SOUR INP1 set source channel 1 INP1 LEV 4 set threshold 4V Gate Source ADVanced Gate source ADVanced enables extended control of the gate signal through the coun ter s SENSe GATE commands see Advanced Gate Control 168
3. Scale Function Get New Off On Null Reference I Null PPB Mx B CALCulate1 SCALe FUNCtion Figure 6 2 53220A 53230A Display with Scaling Functions Enabled Enabling the Scale Functions All 53220A 53230A scaling functions are enabled with the command CALCulate 1 SCALe STATe OFF ON CALCulate 1 SCALe STATe query form ON enables scaling OFF disables scaling Following a reset RST or instrument preset SYSTem PRESet scaling is disabled Using the Scale Functions The counter scaling functions include null percent change PCT part per million 53220A 53230A User s Guide 53220A 53230A Math Graphing and Data Logging 6 change PPM part per billion change PPB and scale Mx B The function is selected with the command CALCulate 1 SCALe FUNCtion NULL PCT PPM PPB SCALe CALCulate 1 SCALe FUNCtion query form NULL performs a null operation The result is the measurement minus the reference value See Scale Reference Value for information on setting the reference PCT performs a percent change operation The result is the difference between the measurement and the reference value expressed in percentage PPM performs a parts per million change operation The result is the difference between the measurement and the reference value expressed in parts per million PPB performs a parts per billion change operation The result is th
4. TRIG DEL 1 1s delay after trigger received TRIG COUN 2 accept 2 system triggers SAMP COUN 100 take 100 readings per system trigger INIT initiate the counter wait for trigger state FETc retrieve measurements from reading memory READ equivalent to executing INITiate IMMediate directly followed by FETCh With READ readings are displayed stored in reading memory and instantaneously read into the output buffer see Chapter 7 Formats and Data Flow for more informa tion READ Example configure for frequency set system trigger parameters CONF FREQ 5E6 0 1 2 TRIG SOUR EXT trigger source external TRIG SLOP POS external trigger slope positive TRIG DEL 1 1s delay after trigger received TRIG COUN 2 accept 2 system triggers SAMP COUN 100 take 100 readings per system trigger READ initiate the counter fetch readings from memory Once initiated a valid trigger signal and a satisfied delay period if specified moves the 53220A 53230A User s Guide 155 5 Triggering and Gating counter to the triggered state and the beginning of the gate cycle The counter remains in the triggered state until the sample count readings per trigger is reached The counter then returns to the wait for trigger state until the next system trigger is received The counter returns to the idle state once the product of the trigger count x sample count is reached Measurement Gate
5. gt width burst on width burst off A 6dB f p p amplitude burst carrier frequency Figure 3 13 53230A Microwave Pulse Measurements Carrier Frequency Burst dB Level Narrow Gate Auto Freq 6 12 Off On Off On The commands used to measure the carrier frequency of a burst pulse are MEASure FREQuency BURSt lt channel gt CONFigure FREQuency BURSt lt channel gt channel is optional channel 3 specified as 3 53220A 53230A User s Guide 113 3 114 53220A 53230A Measurements Carrier Frequency Measurement Examples measure the carrier frequency using MEASure and its default settings RST reset to start from known state MEAS FREQ BURS 3 measure the carrier frequency using CONFigure set automatic gate configuration RST reset to start from known state CONF FREQ BURS 3 INP3 BURS LEV 6 set a detector threshold of 6 dB SENS FREQ BURS GATE NARR OFF narrow pulse mode off SENS FREQ BURS GATE AUTO ON automatic gate set up AD E E RI G Notes 1 See Burst Measurement Detector Threshold in Chapter 4 for information on setting the threshold for pulse measurements 2 See Burst Carrier Frequency Measurements in Chapter 5 for information on narrow pulse mode and on automatic and manual gate control for carrier measurements Pulse PRI and PRF Pulse
6. A 285 A 53220A 53230A Error Messages 711 Calibration error The message to be stored in calibration memory calibration string too long js greater than 40 characters 712 Calibration failed A hardware failure occurred Contact Keysight 713 Channel 3 calibration signal The calibration source signal is not connected to not detected channel 3 714 Channel 3 calibration signal The power level of the calibration signal was out power level error side the expected range of the specified level 715 Channel 3 calibration signal The frequency of the calibration signal was out frequency error side the expect range of the specified value 716 Channel 3 calibration signal The Channel 3 calibration signal must be a con is not CW tinuous wave CW and not a pulsed signal Calibration at the specified power level did not ae Channel 3 calibration complete within the gis seconds allowed Per timeout occurred form a self test to verify operation of the Channel 3 board and re check the parameters of the input signal 720 Auto calibration failed No signal should be present on the input channel input signal detected during an auto cal The instrument s calibration data was lost due to a 742 Calibration data lost firmware update that may have made the current corrections calibration data invalid or due to a hardware fail ure Recalibrate the instrument An error occurred as calibration data was be
7. BNC or to the channel 1 or channel 2 input Frequency Measurements Freq Time Pulse Advanced kab Porod semp awet ans 100 000ms Gate Src Gate Out l Timed Off On Timed Ext Adv Chanz For frequency and period measurements the command used to set change the gate source is SENSe FREQuency GATE SOURce TIME EXTernal INPut 1 INPut 2 ADVanced SENSe FREQuency GATE SOURcCe query form gate source TIME is used to achieve a desired resolution in number of digits It uses an internal gate signal and is the default gate source It enables the gate to remain open for a specified period while the input signal is measured The longer the gate time the greater the resolution Resolution and Gate Time Reading resolution in digits is a function of the counter s gate time measurement mode AUTO CONTinuous RECiprocal Chapter 3 and resolution enhancement algorithm Resolution enhancement Rx which is defined in the 53220A 53230A data 53220A 53230A User s Guide Triggering and Gating 5 sheet extends the resolution beyond what is achieved with the basic reciprocal measure ment technique Resolution enhancement applies to the counter s AUTO or CONTinu ous mode with gate times gt 10 msec Table 5 2 shows the digits of resolution achieved with the 53230A and 53220A for a given gate time The table also includes formulas for estimating digits as a function of
8. Local The trigger count multiplied by the sample count TRIG COUN x SAMP COUN deter mines the number of readings taken before the counter returns to the idle state The sam ple count is set with the command SAMPle COUNt lt count gt MINimum MAXImum DEFaul1t SAMPle COUNt MINimum MAXimum DEFault query form The count range is to 1 000 000 CONFigure and MEASure set a default sample count of 1 Reading memory can store up to 1 000 000 readings If the product of the trigger count and the sample count is greater than 1 000 000 readings data must be read from reading memory fast enough to prevent memory overflow If memory does overflow new read ings will overwrite the first oldest readings stored The most recent readings are always preserved See Chapter 8 Status Conditions for information on monitoring reading memory count Sample Count Example configure for frequency set system trigger and sample count parameters take 2 sets of 100 readings CONF FREQ 5E6 0 1 2 TRIG SOUR EXT trigger source external TRIG SLOP POS external trigger slope positive TRIG DEL 1 1s delay after trigger received TRIG COUN 2 accept 2 system triggers SAMP COUN 100 take 100 rdgs for each trigger 53220A 53230A User s Guide 153 5 Triggering and Gating The trigger count and sample count are ignored when making continuous total ize measurements The trigger count is also ignored when m
9. OK Disabling the GPIB Interface The GPIB interface can be disabled from the front panel by selecting I O Config fol lowed by GPIB Settings and then GPIB Off When disabling or enabling the interface you must cycle power for the change to take affect When disabled the interface cannot be configured by the Connection Expert utility Using the GPIB Interface with Interactive lO The Web enabled instrument interface is not available from the GPIB interface An alternate programming method is to use the Connection Expert Interactive IO utility see Using Interactive IO 53220A 53230A User s Guide 55 2 53220A 53230A Software Installation and Interface Configuration Using Interactive IO The Connection Expert Interactive IO utility provides another method Table 2 1 of sending commands to the 53220A 53230A Interactive IO is accessible from any of the PC s IO interfaces and allows you to send any command in the 53220A 53230A SCPI command set to the instrument You can also choose from a menu of IEEE 488 Common commands e g IDN RST TST Interactive IO can be used to e troubleshoot communication problems e issue a device clear e learn the instrument s command set Figure 2 8 shows how Interactive IO is started for a selected interface Agilent Connection Expert File Edit view I O Configuration Tools Help 2 Refresh All DP Undo F i Properties a Interactive I0 Task Guide Instrumen
10. set an external gate source SENS GATE EXT SOUR EXT select rear panel Gate In BNC OUTP STAT OFF disable BNC as an output SENS GATE STAR SLOP POS set a pos start gate slope SENS FREQ GATE SOUR ADV low level gate control Setting a Gate Start Delay Gate Src Start Stop Gate Out ni Adv ig Menu Menu Off On Start Src Y Detay sre 1 Imm None l When using either an internal immediate or external signal to start open the gate a delay from when the signal is received to when the gate is started opened can be speci fied The delay source and its parameters are set with the commands SENSe GATE STARt DELay SOURce IMMediate EVENts TIME 53220A 53230A User s Guide 181 5 Triggering and Gating SENSe GATE STARt DELay SOURce query form delay source IMMediate disables the delay settings and no gate delay occurs CON Figure and MEASure do not change the delay source setting Following a reset RST or instrument preset SYSTem PRESet or Preset key delay source IMMe diate is selected delay source EVENts delays the gate start open until a specified number of events edges as configured by the INPut subsystem occur on the input channel For two channel time interval measurements delay events are counted on the start chan nel For frequency ratio measurements delay events are counted on the denominator channel The number of event
11. 4 999962418998650E 005 4 9999 62407190446E 005 4 999962443559675E 005 Querying the Reading Count The total number of readings in memory at any given time can be determined with the command 53220A 53230A User s Guide 245 7 246 Formats and Data Flow DATA POINts The reading count can be read before the total reading count is reached TRIG ger COUNt x SAMPle COUNt Setting a Reading Threshold in Memory The following command allows you to set a reading threshold in the counter s volatile memory DATA POINts EVENt THReshold lt count gt DATA POINts EVENt THReshold query form when count number of readings have entered reading memory bit 12 Rdg Mem Threshold in the Standard Operation Register is set to 1 By monitoring this bit read ings can be transferred from memory to the output buffer once a given number of mea surements have occurred Once the threshold is reached the number of readings in memory must drop below the threshold level in order to detect when the threshold is reached again Memory Threshold Example Note this example is also contained on the Keysight 53210A 53220A 53230A Product Reference CD ROM This program sets up the counter to take 1 250 000 readings Because volatile reading memory capacity is 1 000 000 readings readings will be over written memory over flow if data is not retrieved before memory fills To prevent memory overflow a read ing thr
12. Contig jAutoCal re Setup 4 etup pori 6 a we oe ee M 8 eee eres NisPoM Help Lang Number Baga Display SCPI Lang J English J Format Off On porsan 1532304 oo The counter s Beeper is an indication of a programming error generated from the front panel or over the remote interface Turning off the beeper disables the audio indication Note that the beeper setting does not apply to the tone heard when front panel keys are pressed Reference Settings Reference settings are counter settings that apply to all counter measurements Date and Time System Preset 0 Utility a 1 0 Cal Instr System Battery 4 Recall Config JAutoCal ri Setup 1 4 etup Option r PENER AT l Help x User Date Manage 5 Settings 1 Time i Files NISPOM i Month Day Hour Minute The date and time settings for the counter s real time clock are set using the commands 28 53220A 53230A User s Guide Preparation for Use 1 SYSTem DATE lt year gt lt month gt lt day gt SYSTem DATE query form SyYySTem TIME lt hour gt lt minute gt lt second gt SYSTem TIME query form The date and time range values are year 2000 2099 hour 0 23 month 1 12 minute 0 59 day 1 31 second 0 59 999 The real time clock is battery backed and retains the date and time when power is off There is no automatic setting of or automatic return to the current date and time
13. O CLG Marker2 LockMrkrs m eile lo at p For marker zoom and pan adjustment the decimal position 1 e 1000 s 100 s 10 s 1 s highlighted by the arrow keys sets the amount of movement coarse or fine for each tick of the rotary knob a 20080 EE The Marker softkeys allow you to position markers on individual readings or decima tion points within the trend chart and if desired ock the relative distance between the markers When locked together moving either Marker or Marker2 with the front panel knob or using Shift followed by a reading number moves both markers while main taining the distance between the two The data corresponding to the marker positions is shown above the trend window Zoom determines the number of readings displayed by increasing the resolution at the center region of the trend chart window Each time the zoom is adjusted the reading indices Figure 6 8 are changed to show the current reading range Pan scans the trend chart left or right once a zoom percentage has been set By moving the Pan window regions of interest can be brought into view and Zoom used again to expand the region Pan used interchangeably with Zoom in this manner maintains the zoom percentage With Pan each reading or decimation point can also be viewed up to the window max imum of 100 readings points at a time Show All updates the trend window to represent the current reading count The reading indices are 0
14. gated gt continuous input WT events Figure 3 12 Gated and Continuous Totalizing The commands used to make gated timed totalizing measurements are MEASure TOTalize TIMed lt gate_time gt MINimum MAXimum DEFault lt channel gt CONFigure TOTalize TIMed lt gate_time gt MINimum MAxXimum DEFault lt channel gt gate_time specifies the time input events on the counter channel are totalized The range for gate_time is 53220A 100 us to 1000s 10 us resolution or 9 9E 37 INFinity 53230A lu to 1000s 1 us resolution or 9 9E 37 INFinity The default gate_time for both instruments is 0 100s channel is counter channel or 2 specified as 1 or 2 53220A 53230A User s Guide 53220A 53230A Measurements 3 Gated Totalize Measurement Examples using MEASure totalize inputs on channel 1 for 10 us RST reset to start from known state MEAS TOT TIM 10e 6 1 using CONFigure totalize inputs on channel 1 for 1s use same signal as gate signal apply to channel 2 RST reset the counter to start from a known state SYST TIM 3 3s measurement timeout CONF TOT TIM 1 INP1 LEV 0 0 set count threshold to 0V INP1 SLOP POS count positive edges INP2 LEV 0 0 set gate threshold to OV SENS GATE STAR SOUR EXT use external gate signal SENS GATE EXT SOUR INP2 gate is ext signal on ch 2 SENS GATE STAR
15. histogram display mode CALC2 TRAN HIST POIN 15 specify 15 bins CALC2 TRAN HIST RANG AUTO ON auto select ranges CALC2 TRAN HIST RANG AUTO COUN 300 use first 300 rgs CALC2 TRAN HIST STAT ON enable histogram INIT initiate the counter TRG send a software trigger 53220A 53230A User s Guide 219 6 53220A 53230A Math Graphing and Data Logging Resetting the Histogram Histogram Off On Options 4 E Zoom amp Markers I Show Count Save Readings Reset Histogra ee ae The data from which the current histogram is created is cleared by any of the following e pressing the Reset Histogram softkey e enabling disabling or changing any part of the histogram number of bins anew measurement cycle INITiate IMMediate REAI lower or upper range D MEASure e sending anew SCPI command or changing a current SCPI parameter e an instrument reset or present RST SYSTem PRESet These actions also clear all readings in reading memory and in the output buffer To clear histogram data without clearing the readings in reading memory the following command is used CALCulate2 TRANsform HISTogram CLEar IMMediate 220 53220A 53230A User s Guide 53220A 53230A Math Graphing and DataLogging 6 Saving Readings Msi sorte ed eae ats li Action Export data Path MANE File ee Fi Use knob to create fil
16. period meas ar i of expected 10 MHz signal NP IMP 1E6 set impedance to 1 Mohm INP RANG 50 set 50V range Setting the Probe Factor Coupling Impedance BW Limit E l ED Channel Setup AC DC iM 509 SV SOV Off 100k None 10 1 For better access to test points on the device under test DUT Keysight recommends its N2870A N2873A and N2874A Passive Probes for use with the 53220A 53230A coun ter The 35 MHz BW N2870A 1 1 probe and the 500 MHz N2873A and 1 5 GHz N2874A 10 1 probes are popular accessories commonly 53220A 53230A User s Guide 53220A 53230A Input Signal Conditioning 4 used with Keysight oscilloscopes When using probes with the counter specifying a probe factor references and displays threshold levels and p p levels relative to actual levels on the DUT rather than to the level at the channel input The probe factor is set with the command INPut 1 2 PROBe lt factor gt MINimum MAXimum DEFault INPut 1 2 PROBe MINimum MAXimum DEFault query form Probe factor settings are 1 for a 1 1 probe N2870A and 10 for a 10 1 probe N2873A or N2874A When set to 1 the counter ranges are 5V and 50V When set to 10 the counter ranges are SOV and 500V Probe Input Compatibility The input compatibility of the N2870A and N2873A probes is 1 MQ respectively The compatibility of the N2874A is 509 Each is compati ble with the counter s 20 pF input capacitance When using
17. quency ratio and period The SCPI commands listed in these examples are provided as an introduction to how frequency measurements are made Commands may be included even though they specify default values but which should be considered when mod ifying the examples for actual use Refer to the Programmer s Reference on the Keysight 53210A 53220A 53230A Product Reference CD for additonal information Frequency Measure Auto gt Scale Advanced I Period I el J Auto lt frequency gt Figure 3 2 Standard Frequency Measurement 53220A 53230A User s Guide 81 3 82 53220A 53230A Measurements The commands used to make frequency measurements are MEASure FREQuency lt expected gt MINimum MAXimum DEFault lt resolution gt MINimum MAXimum DEFault lt channel gt CONFigure FREQuency lt expected gt MINimum MAXimum DEFault lt resolution gt MINimum MAXimum DEFault lt channel gt expected is the expected input signal frequency resolution is the desired mea surement resolution in hertz The parameter ranges are expected channels 1 and 2 0 1 Hz 350 MHz default 10 MHz expected channel 3 Option 106 100 MHz 6 0 GHz default 500 MHz expected channel 3 Option 115 300 MHz 15 GHz default 500 MHz resolution all channels 1 0E 15 expected to 1 0E 5 expected default resolution corresponds to a 0 1s gate time channe
18. tion Scaling Example The following example is a typical sequence of scaling commands from the SCPI CAL Culate 1 subsystem Scale 500 readings M x B and CONF FREQ 1 SAMP COUN 500 SENS FREQ GATE TIME 010 CALC STAT ON CALC SCAL STAT ON CALC SCAL FUNC SCAL CALC SCAL INV ON CALC SCAL GAIN 100 CALC SCAL OFFS 0 CALC SCAL UNIT STAT ON CALC SCAL UNIT sec INIT assign reading units frequency measurement 500 readings trigger set minimum gate time enable CALCulatel subsystem enable scaling operation set scaling function Mx B invert readings M x B set gain M set offset B enable user defined units assign units to readings initiate readings For an input frequency of 1 MHz the counter should display readings of approximately 100 00 usec 53220A 53230A User s Guide 53220A 53230A Math Graphing and DataLogging 6 Statistics Statistical calculations are performed continually on readings as they are taken or until the total reading count TRIGger COUNt x SAMPle COUNT is reached The com mands used to generate statistical data are covered in this section As mentioned multiple operations can be enabled at the same time Figure 6 3 is an example with statistics and limit checking enabled CALCulate1 STATe ON CALCulate1 AVERage STATe ON CH 1 Frequency 24 639 924 471 mnz Limits Mean 24 733 214 224mhz Max 24 999 923 576
19. 156 Control of the measurement gate allows you to select the duration of the measurement The gating sequence of the trigger gate cycle begins after a system trigger signal is received and is repeated for each measurement specified in the sample count The gate sequence occurs while the counter is in the triggered state Figure 5 2 Although shown in the figure after the counter is initiated gate configu ration like system trigger configuration occurs while counter is in the idle state Counter measurements are based on configurations comprised of multiple parameters The easiest and most common starting point for setting these parameters programmatically is using commands within the CONFigure and MEASure subsystems Chapter 3 These subsystem commands are considered high level as multiple counter parameters are set or defaulted from a single command Low level commands such as the gating commands described here allow you to change selected gating parameters without altering other areas of the counter configuration Gate Set Up The counter s gate source determines the path through the gate cycle and the related parameters that must be considered A gate source is required for all frequency totaliz ing and time interval measurements Although selection of the gate source is shown at the beginning of the cycle Figures 5 2 53220A 53230A User s Guide Triggering and Gating 5 and 5 5 programmatically it sho
20. 612 695 504 254 4 113 41 20 4 4 0 Notice in this sample there were no readings below the lower range value or above the upper range value CALCulate2 TRANsform HISTogram DATA Returns only the bin data of the current histogram in the sequence number of measurements less than the lower range value number of readings in each bin number of readings greater than the upper range value 53220A 53230A User s Guide 223 6 53220A 53230A Math Graphing and Data Logging Trend Charts 224 Reading trends for a given number of counter measurements except continuous total ize or timestamps can be represented within a 53220A 53230A trend chart also known as a run chart Figure 6 8 shows the components of a typical counter trend chart Function Y Max maximum reading value within display span Channel Y Min minimum reading value within display span Current reading count Span Y Max Y Min 4 memory Y Max 101 099 690 77k Frequency Y Min 101 099 688 68k Channel 1 Span 2 088 052 991 9m Count 5181 Maximum and minimum scale boundaries and reading units Boundaries can be auto scaled or set manually Auto scaled boundaries keep all readings within the display range reading indices Chart Options Save Zoom amp Clear Off On Readings Markers Readings Mkr 1 reading value at Marker1 location Mkr 2 reading value at Marker2 location Span difference in values between marker locations Read
21. 7 242 Formats and Data Flow 3 if reading memory overflows the first oldest readings are overwritten and the Reading Mem Ovfl bit 14 in the Questionable Data Register is set The most recent measurements are retained Output Buffer Data is available to the PC over the LAN USB and GPIB interfaces once it is in the out put buffer Figure 7 1 The following section explains how readings are transferred from memory to the buffer If during a transfer the output buffer fills command execu tion is paused until readings are removed by the PC creating room in the buffer No readings are lost Transferring Readings from Memory to the Output Buffer The following commands transfer readings from volatile reading memory to the buffer READ is equivalent to executing INITiate IMMediate directly followed by FETCh With READ once all readings specified by TRIGger COUNt and SAM Ple COUNt are complete and in memory they are instantaneously read into the output buffer Figure 7 1 If the data format is REAL FORMat subsystem each block of readings generated by READ is preceded by an IEEE 488 2 Indefinite Length block header Table 7 1 As such when sending multiple commands in a single command string READ should always be the last command in the string READ Example frequency meas of 500 kHz signal with uHz resolution CONF FREQ 500E3 1E 6 1 configure counter TRIG C
22. Action CTO Format um EE te ieee e SS a 26 53220A 53230A User s Guide Preparation for Use 1 The content captured is the display state at the time the Utility key is pressed The file format is selectable as either bmp bitmap file format or png portable network graphics bitmap format Files may be store in internal flash memory or to an external USB device See Chapter 7 for information on selecting paths and creating file names User Interaction The features described in this section are related to the user s physical interaction with the instrument Selecting the Instrument Help language System iii iS 3 Store 170 Cal Instr System Battery lt Utility J Recall Contig AutoCal g Setup Setup l Option 6 a a rn Help settings Time fice NISPOM Help Lang Number Beeper Display SCPI Lang English j Format off On Options 1 632904 English French German Japanese Korean Chinese Programming messages context sensitive help and other help topics are viewable in six languages The selected language remains active until changed using the key sequence shown Note that menu soft key labels appear only in English 53220A 53230A User s Guide 27 1 Preparation for Use Beeper Setting System 0 S 1 0 i tore Cal Utility E Instr System Battery 4 Recall
23. INPut 1 2 LEVel 1 2 RELative INPut3 BURSt LEVel INPut 1 2 NREJect trigger point threshold level Hysteresis band p p sensitivity dynamic range v ap A g oo fy oO Qa T 5 a INPut 1 2 SLOPe 1 2 Vpp 5 30 V Vmin 1 24 V Vmax 6 54 V front panel dynamic range indicator negative slope Positive slope INPut 1 2 LEVel MAXimum INPut 1 2 LEVel PTPeak INPut 1 2 LEVel MINimum Figure 4 4 Input Signal Threshold Level and Sensitivity Specifying an Absolute Threshold Level 000 V Auto Level EET Slope NoiseRej Off On IPos Neg Off On The input threshold level can be specified as an absolute value An absolute level is set with the command INPut 1 2 LEVel 1 2 ABSolute lt volts gt MINimum MAXimum DEFault INPut 1 2 LEVel 1 2 ABSolute MINimum MAXimum DEFault query form 53220A 53230A User s Guide 129 4 130 53220A 53230A Input Signal Conditioning Absolute threshold levels for the input ranges are 5V range 5 125V 2 5 mV resolution 50V range 51 25V 25 mV resolution 500V range w 10 1 probe 512 5V 250 mV resolution LEVel LEVe11 sets the absolute threshold for all measurements except rise fall time and single channel time interval For rise fall time measurements LEVe1 LEVe11 sets the lower reference and LEVe12 sets the upper reference For single channel time interval LEVe1 LEVe11 sets
24. Measurement Time Out The measurement time out is the time allowed for each measurement to complete Ifa measurement does not complete before the time out expires 9 91E37 not a number is returned and the display indication is The sequence continues with the next reading in the sample count Specifying a time out prevents the instrument from pausing indefinitely if for some rea son a measurement is unable to complete The default and factory set time out is 1 second Refer to Setting the Measurement Time Out in Chapter 3 for more information Time Base 53220A and 53230A measurements are based on a reference oscillator also referred to as an internal external clock or time base A valid reference oscillator signal must be present for measurements to occur Refer to Reference Oscillator Configuration in Chapter 3 for detailed information on selecting and configuring the reference oscillator source 53220A 53230A User s Guide 29 1 30 Preparation for Use Auto Level The threshold level is the trigger input level at which the counter begins the measurement Auto level is the automatic setting of this threshold based on the positive and negative peaks of the input signal The minimum frequency at which auto leveling can occur is set as shown System 3 er 6 g Store re Recall Self TimeBase PhaseMeas Time Out Auto Level Test Settings Auto Settings 4 S
25. SYSTem PREset additionally reset the lower and upper limits to 0 0 To turn off the Limit annunciator and clear only the limit sensing bits 11 12 in the Condition register without clearing reading memory the following command is used CALCulate 1 LIMit CLEar IMMediate Histograms The distribution for a given set of counter measurements except continuous totalize and time stamp measurements can be represented graphically using the 53220A 53230A histogram feature The following example Figure 6 5 represents the basic for mat of a counter histogram Bins classes points UR Histogram upper range boundary LR Histogram lower range boundary 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Rdgs lt LR el fas Rdgs gt UR Figure 6 5 53220A 53230A Histogram Structure Note that histograms and math functions e g statistics scaling limits etc can be used 53220A 53230A User s Guide 211 6 212 53220A 53230A Math Graphing and Data Logging simultaneously with the same measurement data Viewing Histograms Trend Histogram a 2 Digits Ld n n Chart IT l 1 Math o OOE Log f Histogram Options Show Save Zoom amp Reset Off On JI Count Readings Markers Histogra SS mj At power on or when the front panel Preset key is pres
26. and 909 Self Test failed Channel 3 options Verify and if necessary install GPIB test failed the latest firmware update and re run the self test Si Self Test failed If the Lari es baa the a firmware revi channel 3 test failed sion installed contact Keysight Self Test failed 911 front panel revision check Verify and if necessary install the latest firmware failed update and re run the self test If the fallure oe Self Test failed pram Was firmware revision installed measurement board test failed COM Keysignt 53220A 53230A User s Guide 287 A 53220A 53230A Error Messages 288 53220A 53230A User s Guide Index Numerics 53220A 53230A programming 36 53230A burst measurements 173 A absolute threshold level 130 ac coupling 126 address string GPIB 50 54 addressing changing the GPIB address 54 IP addresses and host names 48 advanced gate control external gate start signal polarity 179 external gate start signal threshold 180 external gate stop signal polarity 187 external gate stop signal threshold 188 gate start delay 181 gate start source 177 gate stop and holdoff 182 gate stop holdoff 183 gate stop source 185 advanced gating gate start example 181 gate stop example 189 Keysight Connection Expert adding GPIB instruments 52 adding LAN instruments 44 adding USB instruments 49 interactive IO 54 55 locating LAN instruments 45 53220A 53230A User s Guide Keysight
27. byte order Following a reset RST or front panel preset Preset the byte order is set to NORMal Reading Transfer Size Each reading read from the output buffer in ASCII format is 23 bytes Each readings in REAL format is eight bytes 53220A 53230A User s Guide 239 7 Formats and Data Flow Data Flow The flow of measurement data within the counter is summarized in Figure 7 1 Keysight 53220A 53230A Counter lt instrument states gt ae MMEMory LOAD STATe Gate CH 1 Frequency 1 011 993 408 203 13 Vpp 5 31 V Vmin 1 24 V Vmax 6 4 V Freq Period Freq F Time Pulse Advanced E Sr Soe ee MMEMory STORe DATA USB Memory Device i host port direction of data flow MMEMory DOWNoad DATA MMEMory UPLoad internal flash instrument firmware 5M readings Tene calibration constants l volatile reading memory output 1M readings 1 PATA REMove i T DATA LAST INITiate IMMediate measurements READ t DATA POINTs EVENt THReshold MMEMory DOWNoad DATA MMEMory UPLoad Figure 7 1 Data Flow within the 53220A 53230A Counter Reading locations include the front panel reading memory volatile output buffer internal flash memory non volatile and external USB memory The commands which determine data flow are listed in Table 7 2 and are described in the following paragraphs Table 7 2 Commands Affecting Data Flow 240 53220A
28. 1 2 interval J MEASure NWIDth m CONFigure PWIDth Positive Pulse Width Time MEASure PWIDth 93420320R 2 Phas Time CONFigure PHASe Fe oT a bare ee a 53220A 53230A 1 2 CONFigure TOTalize CONTinuous Totalize Continuous Totalize 53220A 53230A 1 2 r CONFigure TOTalize TIMed Totalize Timed Toae a re ale o ies Ned 53220A 53230A 1 2 CONFigure ARRay TSTamp F Time Stamp MEASure ARRay TSTamp 392300 123 Minimum Input Voltage Display INPut 1 2 LEVel MINimum 53220A 53230A 1 2 Maximum Input Voltage Display INPut 1 2 LEVel MAXimum 53220A 53230A 1 2 Peak to Peak Input Voltage Display INPut 1 2 LEVel PTPeak 53220A 53230A 1 2 RF Signal Strength Display INPut3 STRength 53220A 53230A 3 53220A 53230A User s Guide 65 3 53220A 53230A Measurements Reference Oscillator Configuration System Preset 0 Store 1 0 Cal Z Instr ISystem Battery j J g Utility etup J Option E g Recall 4 Config AutoCal 4 Setup jel Self TimeBase HhaseMeas Time Out Auto Level Test Settings Auto Settings 1 Slow TimeBase Ext Ref Standby J Auto 110 MHz Off On o T 53220A and 53230A measurements are based on a reference oscillator also referred to as an internal external clock or time base A valid reference oscillator signal must be present for measurements to occur The following information applies to the counter s standard temperature co
29. 240V 50 60 Hz 100 127V 400 Hz Int Ref Out 90VA Max SV opt 010 vocxo Opt 300 Battery FA x N Wm Opt 150 sw 53230A Only XO SOU Intertek Figure 1 1 The 53220A 53230A Universal Frequency Counter Timer 53220A 53230A User s Guide Preparation for Use 1 Front and Rear Panel Overview Figure 1 1 shows the front and rear panels of the Keysight 53230A 350 MHz Universal Frequency Counter Timer The 53220A and the 53230A are dimensionally identical and available with the same product options with the exception of Pulse Measurement Firmware Option 150 available with the 53230A only Front Panel The shaded areas of the front panel represent keys that perform similar functions These areas are briefly described below A Measure Keys display soft key menus from which the measurement function is selected Auto Scale senses the input signal greater than 100 Hz on input channel 1 2 or 3 and automatically sets the range and input threshold required to make the selected measurement Counter measurements are covered in Chapter 3 B View Keys select how measurement data is displayed on the front panel Display configuration is covered later in this chapter Graphics math and data logging are covered in Chapter 6 C System Keys provide instrument wide configuration which includes setting the counter preset state and access to utility functions and to the counter s built in help s
30. 3 specified as 1 2 or 3 Period Measurement Examples using MEASure measure the period of a 100 ns 10 MHz signal with 12 digit resolution RST reset to start from known state MEAS PER 100E 9 1E 12 1 using CONFigure measure the period of a 100 ns 10 MHz signal with 12 digit resolution RST reset to start from known state SYST TIM 1 0 1s measurement timeout per meas CONF FREQ 100E 9 1E 12 1 SAMP COUN 10 take 10 readings READ Notes 1 See Chapter 5 for information on triggering and number of readings per trigger sam ple count 2 See Chapter 4 for additional information on counter threshold levels and on configur ing the input signal path 53220A 53230A User s Guide 3220A 53230A Measurements 3 Time Stamp 1 Freq i Time Pulse Advanced Freq Ratio Period Stamp Burst Auto l Y 5 Time Rdgs Rate Auto Level NoiseRej Totaiee Stamp cTrigger MHz Off On Off On N 10KHz 100KHz 800KHz IMHz Time stamp measurements record events edges as they occur on the counter input channels An example of time stamp measurements between the edges of an input wave form is shown in Figure 3 5 Time stamp measurements are available with the 53230A only scale factor 1 scale factor 10 event time stamp l time stamp J scale factor 2 Figure 3 5 Time Stamp Events on
31. 35 00 30 D3 04 1F B1 Yes 5025 gpibd USB 2391 6407 US00000050 0 INSTR 3 Use the navigation bar on the left to access your 53230A and related information Figure 2 1 The 53230A Web Enabled Interface Welcome Page NOTE 2 For ease in Internet browser navigation when controlling multiple instruments open a separate browser session for each Web enabled instrument NOTE Although no additional libraries or drivers are required to use the Web interface the interface is also accessible from Keysight Connection Expert KCE See Opening the Web Interface from Keysight Connection Expert for more information 53220A 53230A User s Guide 39 2 53220A 53230A Software Installation and Interface Configuration Web Interface Overview The following information is an introduction to the counter s Web interface The counter welcome page Figure 2 1 displays IO information can be used to identify a connected instrument and contains menu tabs for accessing additional counter func tionality To easily identify the counter among other instruments using its Web interface home page clicking on Turn On Front Panel Identification Indicator changes the counter display to LXI Web Identify until the indicator is turned off by clicking on Turn Off Front Panel Identification Indicator Programming the Counter Selecting the Remote Control icon second from top on the welcome page opens t
32. 53220A 53230A User s Guide Continuous Totalizing Triggering and Gating 5 Gated Continuous Gate Src Start Adv Menu Gate Out Off On Continuous totalizing as configured by the command CONFigure TOTalize CONTinuous sets the gate source to TIME and the gate time to INFinity The command also sets the input threshold to 0 0V and the edge events that are totalized to positive Refer to Chapter 4 53220A 53230A Input Signal Conditioning for information on the com mands in the INPut subsystem used to change these parameters Reading the Current Count During continuous or timed totalizing with long gate times the current count can be read with the command SENSe TOTalize DATA For example CONF TOT CONT INIT SENS TOT DATA ABOR 53220A 53230A User s Guide configure continuous totalizing start measurement query current count terminate measurements 169 5 Triggering and Gating Time Interval Measurements Time Pulse Duty Rise Phase Single lt Interval Width Cycle Fall Period 7 fi Gate Src Gate Out Imm Off On mm oee o aw For time interval measurements the command used to set change the gate source is SENSe TINTerval GATE SOURce IMMediate ExXTernal ADVanced SENSe TINTerval GATE SOURcCe query form gate source IMMediate uses an internal gate signal which starts the measurement on the first event
33. 53230A User s Guide Formats and Data Flow Command Locations Readings Reading Allowed during Accessed Transferred Memory Measurement Cleared Front Panel Read Reading Memory All No No Output Buffer INITiate IMMediate Ffont Fanel None Yes No Reading Memory Reading Memory FETCh Output Buffer All No No Reading Memory All or 2 ay Output Buffer specified count We Yes DATA REMove Reading Memory Specified Count Yes Yes Output Buffer Reading Memory 2 DATA LAST Output Buffer 1 No Yes Reading Memory MMEMORY STORe DATA Internal Flash All No No External USB Front Panel Display 7 Counter measurements taken from the front panel or from an IO interface appear in the display as indicated in Figure 7 1 See Chapter for an overview of display features Reading Memory In addition to being displayed all counter readings are stored in the counter s volatile reading memory Figure 7 1 Memory capacity is 1 000 000 readings Reading mem ory has the following attributes 1 reading memory is cleared after a function change during execution of the READ INITiate IMMediate or MEASure command after cycling power or following an instrument reset RST or preset SYSTem PRESet 2 all readings are stored in an internal counter format the programmed format FORMat subsystem is set when readings are transferred to the output buffer 53220A 53230A User s Guide 241
34. Do not use detergents or chemical solvents Safety Notices CAUTION A CAUTION notice denotes a hazard It calls attention to an operating procedure practice or the like that if not correctly performed or adhered to could result in damage to the product or loss of impor tant data Do not proceed beyond a CAU TION notice until the indicated conditions are fully understood and met WARNING A WARNING notice denotes a hazard It Calls attention to an operating proce dure practice or the like that if not correctly performed or adhered to could result in personal injury or death Do not proceed beyond a WARNING notice until the indicated conditions are fully understood and met Safety Symbols Chassis Ground Refer to manual for addi tional safety information Standby Power Unit is not completely disconnected from AC mains when power switch is in standby position IEC Measurement Category I Do NOT connect inputs to AC mains or to circuits derived from AC mains WARNING Do not connect the input channels of the 53220A 53230A to AC line voltage mains or to circuits derived from AC mains The instrument must be used in CAT isolated from mains applica tions only Do not use in other IEC Measurement Category CAT Il CAT Ill or CAT IV applications Failure to observe these precautions may result in electric shock and serious personal injury A CATI WARNING The BNC shells of the inpu
35. Guide 57 2 53220A 53230A Software Installation and Interface Configuration SCPI Language Emulation Mode System Preset Store 1 0 Cal Instr l System E Utility Recall Config jAutoCal re Setup i Setup l Option i o0 DOPO R O Help Y Settings Te q Files e NISPOM E Help Lang Number Beeper Display SCPI Lang J English Format off On Options 532304 53132A 53230A If the 53220A 53230A is sometimes used in 53132A SCPI language emulation mode the instrument must be returned to its original 53220A 53230A mode before the firm ware can be updated Downloading and Installing the Update Utility 53220A 53230A firmware updates are installed in the instrument using the Keysight update utility The utility and firmware update can be found at www keysight com find 53220A www keysight com find 53230A Once this page is displayed select the Technical Support tab and then select Drivers and Software Click on 532x0A Firmware Update and under Documents amp Down loads select the utility 53210A 53220A 53230A Firmware Update Utility When prompted select Run to install the utility The default installation directory is C Program Files Keysight Firmware Update Utility Type 2 The utility will also be added to the start menu under Keysight 58 53220A 53230A User s Guide 53220A 53230A Software Installation and Interfac
36. INP RANG 5 set range to 5V INP COUP AC set AC coupling INP LEV REL 30 threshold level at 30 Measuring Low Frequency Signals For all counter functions auto level should not be used for frequencies lt 50 Hz Threshold levels should be set using absolute values see Specifying an Abso lute Threshold Level The MEASure command should not be used with frequencies less than 50 Hz as the command configures the counter including enabling auto level and makes an immedi ate measurement For frequencies in this range use the CONFigure command and turn off auto level by specifying an absolute threshold level For example measure a 10 Hz signal CONF FREQ 10 1 measure 10 Hz signal NP IMP 50 set impedance to 50 ohms INP RANG 5 set range to 5V INP COUP AC set AC coupling INP LEV 1 1V threshold turns off auto level INIT take reading Input Coupling and Threshold Levels Figure 4 5 shows a scale of how relative thresholds apply to the input signal When the signal includes a DC offset the absolute value of a relative threshold is a function of the input coupling AC or DC 53220A 53230A User s Guide 53220A 53230A Input Signal Conditioning 4 0 __ Vmin DC coupling AC coupling Figure 4 5 Input Coupling and Relative Threshold Levels For example a 3 Vpp input signal with a 2 VDC offset and DC coupling would have a Vmax value of 3 5V and a Vmin value of
37. Instrument Status Unchanged from previous settings Unchanged from previous settings Unchanged from previous settings FORMat Subsystem DATA Subsystem STATus Subsystem Using MEASure Measurements using commands from the MI EASure subsystem are made as the com mand is executed and are based on parameters specified within the syntax The results are sent to the instrument s output buffer 78 53220A 53230A User s Guide 53220A 53230A Measurements 3 For example the MEASure command MEAS FREQ 60 0 le 3 1 takes a single measurement with five digit 1 mHz resolution of an expected 60 Hz sig nal on channel 1 All other counter parameters input configuration trigger sources etc are set to values predefined for the given MEASure command or remain unchanged from previously programmed values Because the measurement is taken immediately changes to the counter configuration are limited to the parameters within the command Using CONFigure Measurements using commands from the CONFigure subsystem allow the use of low level commands to change counter parameters before the measurement is taken For example assume the following configuration is required e frequency measurement e external trigger positive slope e trigger count 2 e sample count readings per trigger 5 e gate time 5 ms The MEASure FREQuency command cannot be used since it immediately triggers a measurement
38. Keysight 53220A 53230A Status System This chapter provides an overview of the 53220A 53230A Status System Refer to the STATus subsystem and the IEEE 488 commands within the Programmer s Reference for bit definitions and additional information The reference is located on the 53210A 53220A 53230A Product Reference CD p n 53220 13601 Questionable Data Register Group The counter s Questionable Data Register Group monitors the following conditions and events within the counter input voltage overload time interval frequency phase totalize measurement hardware time out calibration data time base error lower limit exceeded upper limit exceeded reading memory overflow Condition Register The Condition Register within the Questionable Data Register Group monitors current conditions that may impact the integrity of the counter measurements The Condition Register is read with the command STATus QUEStionable CONDition Reading the register does not clear the bit s in the register The bit is cleared when the condition is removed Event Register The Event Register within the Questionable Data Register Group also monitors condi tions that may impact the integrity of the counter measurements 53220A 53230A User s Guide 269 8 270 Instrument Status The Event Register is read with the command STATus QUEStionable EVENt Unlike the Condition Register the bits in the Event Register remain set followi
39. MEASure commands enable auto leveling and set a 50 thresh old level A reset RST or front panel preset Preset also enables auto leveling at a 50 threshold level Setting Relative Threshold Levels Relative threshold levels are percentages of the peak to peak input signal amplitude Relative thresholds are set with the command INPut 1 2 LEVel 1 2 RELative lt percent gt MINimum MAX imum DEFau1t INPut 1 2 LEVel 1 2 RELative MINimum MAXimum DEFault query form Threshold values are from 10 to 90 with 5 resolution In order to specify a rela tive threshold level auto level must be enabled LEVel LEVe11 sets the relative threshold for all measurements except rise fall time and single channel time interval For rise fall time measurements LEVe1 LEVe11 sets the lower reference and LEVe12 sets the upper reference For single channel time interval LEVel LEVe11 sets the relative threshold for the start event and LEVe12 sets the threshold for the stop event CONF igure and MEASure set the threshold to 50 and enable auto leveling A reset RST or front panel preset Preset also sets the threshold to 50 and enables auto leveling 53220A 53230A User s Guide 131 4 132 53220A 53230A Input Signal Conditioning Relative Threshold Example set a relative trigger threshold CONF FREQ 1E6 0 1 1 measure 1 MHz signal NP IMP 50 set impedance 50 ohms
40. None i Chan 2 BW Limit Probe Off 100k None 10 1 Coupling Impedance Range AC DC 1MN 509 5Y SOV For external sources INPut 1 and INPut2 Chan and Chan 2 softkeys a fixed input threshold voltage must also be specified in addition to the gate signal slope This is done using the command INPut 1 2 LEVel 1 2 ABSolute lt volts gt MINimum MAXimum DEFault INPut 1 2 LEVel 1 2 ABSolute MINimum MAXimum DEFault query form 180 53220A 53230A User s Guide Triggering and Gating 5 The specified edge slope of the gate signal crossing the threshold starts the gate More information on the INPut subsystem can be found in Chapter 4 53220A 53230A Input Signal Conditioning When using external sources INPut 1 and INPut2 the channel selected as the gate source cannot be the same channel on which the measured signal is applied That is the gate start source channel cannot be involved in the measurement Gate Start Configuration Example The following example shows low level user control of the start gate by setting multiple parameters configure the counter for an externally gated frequency measurement The gate start signal is applied to the rear panel Gate In BNC CONF FREQ 2 frequency measurement on channel 2 TRIG SOUR INT use internal trigger source SAMP COUN 3 set 3 readings gate cycles SENS GATE STAR SOUR EXT
41. PRI Freq idth eae Width dB Level Pos Neg 6 12 The commands used to measure the positive on width and negative off width of a burst pulse Figure 3 13 are MEASure PWIDth BURSt lt channel gt CONFigure PWIDth BURSt lt channel gt MEASure NWIDth BURSt lt channel gt CONFigure NWIDth BURSt lt channel gt channel is counter channel 3 specified as 3 Positive Width and Negative Width Examples measure the positive on width of the burst signal RST reset to start from known state MEAS PWID BURS 3 measure the positive on width using CONFigure set a 12 dB detector threshold RST reset to start from known state CONF PWID BURS 3 INP3 BURS LEV 12 set a detector threshold of 12 dB READ 53220A 53230A User s Guide 117 3 53220A 53230A Measurements measure the negative off width of the burst signal RST reset to start from known state MEAS NWID BURS 3 measure the negative off width using CONFigure set a 12 dB detector threshold RST reset to start from known state CONF NWID BURS 3 INP3 BURS LEV 12 set a detector threshold of 12 dB READ Notes 1 See Burst Measurement Detector Threshold in Chapter 4 for information on thresh old settings and its relationship to positive and negative width measurements 118 53220A 53230A User s Guide Keysight
42. Pulse Burst Burst PRF PRI Freq Width Pulse dB Level PRI 6 12 The commands used to measure the pulse repetition interval PRI and pulse repetition frequency PRF Figure 3 13 of a burst signal are MEASure FREQuency PRI lt expected gt MINimum MAXimum 53220A 53230A User s Guide 53220A 53230A Measurements 3 DEFault lt resolution gt MINimum MAXimum DEFault lt channel gt CONFigure FREQuency PRI lt expected gt MINimum MAXimum DEFault lt resolution gt MINimum MAXimum DEFault lt channel gt expected is the expected interval resolution is the desired measurement reso lution in seconds The parameter ranges are expected 100 ns to 1 0s default 0 001s resolution 1 0E 15 expected to 1 0E 5 expected default resolution corresponds to a 0 1s gate time channel is counter channel 3 specified as 3 MEASure FREQuency PRF lt expected gt MINimum MAXimum DEFault lt resolution gt MINimum MAXimum DEFault lt channel gt CONFigure FREQuency PRF lt expected gt MINimum MAXimum DEFault lt resolution gt MINimum MAXimum DEFault lt channel gt expected is the expected repetition frequency resolution is the desired mea surement resolution in hertz The parameter ranges are expected 1 Hz 10 MHz default 1 kHz resolution 1 0E 15 expected to 1 0E 5 expected defaul
43. SLOP POS start gate on rising edge SENS GATE STOP HOLD SOUR TIME hold off gate close SENS GATE STOP HOLD TIME 1 0 hold off close for 1s SENS TOT GATE SOUR ADV enable gate settings NIT Notes 1 In the program above using CONF igure the input signal on channel 1 whose events edges are totalized is also applied to channel 2 as the gate signal Totalizing the positive edges begins on the same edge that opens the gate A gate stop hold off is set to extend the gate For totalize measurements the holdoff starts when the gate opens Setting a hold off of 1 second in effect sets a 1 second gate time If the gate stop was not held off the gate would close after 1 event 2 See Chapter 5 for additional information on triggering and gating 53220A 53230A User s Guide 109 3 110 53220A 53230A Measurements Continuous Gated Continuous 5 Gated Auto Level RRS Clear NoiseRej Continuous Off On Count Off On Continuous totalizing measurements count events edges that occur on the input chan nel Similar to gated timed totalizing measurements continuous measurements begin when the measurement gate is opened Figure 3 12 Rather than totalizing for a specified gate time continuous totalizing continues indefinitely until the measurement is aborted or cleared and restarted from the front panel The command used to make continuous totalizing measureme
44. The drivers and associated readme files are located within this list 62 53220A 53230A User s Guide Keysight 53220A 53230A 350 MHz Universal Counter Timer User s Guide 3 53220A 53230A Measurements Counter Measurement Summary 64 Reference Oscillator Configuration 66 Reference Oscillator Source 66 Standby Power to the Reference Oscillator Option 010 70 Setting the Measurement Mode 71 Setting the Measurement Time Out 74 SCPI Syntax Conventions 75 The MEASure and CONFigure Commands 77 Using MEASure 78 Using CONFigure 79 Frequency and Period Measurements 81 Frequency 81 Frequency Ratio 83 Period 85 Time Stamp 87 Time Interval Measurements 90 Rise Time and Fall Time 94 Pulse Width 97 Duty Cycle 100 Phase 103 Single Period 105 Totalizing Measurements 107 Gated 107 Continuous 110 Burst Pulse Measurements 112 This chapter contains general programming information and examples of the measure ments that can be made with the 53220A and 53230A counters KEYSIGHT TECHNOLOGIES 3 53220A 53230A Measurements Counter Measurement Summary The Keysight 53220A and 53230A counter measurements are summarized in Table 3 1 The table includes the front panel keys under which specific measurements are selected via soft keys Also provided are the equivalent SCPI commands and channel restric tions Table 3 1 Keysight 53220A 53230A Measurement Summary Measurement Key Co
45. The filter is reset if the measurement function or channel is changed if another set of readings is initiated or if a measurement is outside the range corresponding to the num ber of readings specified SLOW MEDium FAST After the filter is reset the reading is the average of all readings up to the specified response 10 50 100 At that point the reading is the moving average of the last 10 50 or 100 measurements Equal weighting is applied to all measurements in the average A reset RST or instrument preset SYSTem PRESet sets the response to FAST Smoothing Example frequency measurement of expected 1 kHz signal ch 1 creduce noise on 5 000 readings CONF FREQ 153 1 SAMP COUN 5000 take 5000 reading CALC STAT ON enable CALCulatel subsystem CALC SMO STAT ON enable moving average filter CALC SMO RESP SLOW average 100 readings INIT Scaling Functions When scaling is enabled statistical analysis limit checking histograms and trend charts use scaled data Figure 6 2 shows the display with scaling functions enabled 53220A 53230A User s Guide 195 6 196 53220A 53230A Math Graphing and Data Logging CALCulate1 SCALe UNIT STATe ON CALCulate1 STATe ON CALCulate1 SCALe UNIT CH 1 Frequency 999 536 915 40 Vpp 8 02 V Vmin 3 99 V Vmax 4 03 V All Math Smoothing Null Btatistics Limits Off On iL Scale 4 000 000 000 000 064 Hz CALCulate1 SCALe STATe ON
46. The readings are viewable in trend run chart format while logging is in progress and when complete Data logging occurs for a duration specified as a period of time or a number of readings to be logged Once enabled the start of data logging can be delayed for a period of time Specifying a Data Log File t Stamp Off On Logged readings saved in internal flash memory or in external USB memory are comma separated values CSV in one measurement per line ASCI format A default path and file name Internal DataLog is used if one is not specified a The drive Internal or External is selected using the browse feature and the file name is specified using the rotary knob and arrow keys to select or change characters Pressing Done saves the path and file name and returns to the application menu Data logging will not start if an invalid path file is specified Adding a Time Stamp to the Data Log File A time stamp t Stamp in the form yyyymmdd_hhmmss e g DataLog_20100925_105535 csv is appended On to the file name when data logging completes or when the Stop Save soft key is pressed The time stamp also appears on the spreadsheet tab when the data log csv file is opened 53220A 53230A User s Guide 53220A 53230A Math Graphing and DataLogging 6 Setting the Duration DataLog hh mm ss J 00 00 File Start Duration R Select Delay ime DataLog 19 000 File Start Duration am 4 Select De
47. User s Guide 53 2 54 53220A 53230A Software Installation and Interface Configuration New GPIB Instrument GPIB address Secondary address None Check for an instrument at this GPIB address Auto identify this instrument Figure 2 7 Selecting the GPIB Address The counter s GPIB address can be read from the front panel as shown below System 0 Instr System Battery Store 1 Setup E Setup L Option i O Cal 4 Recall contig JAutocal lt Utility 6 LAN LAN Off On Settings w GPIB GPIB l Off On AGGER 53220A 53230A User s Guide 53220A 53230A Software Installation and Interface Configuration 2 The GPIB Address String When programming the counter over GPIB the instrument s GPIB address is included in the address string as shown below GPIBO 3 INSTR Changing the GPIB Address To change the GPIB address select GPIB Address and using the rotary knob or Shifted numeric keys set the desired address Once the address is changed you must cycle power for the change to take affect If the GPIB address is changed the new address IS NOT updated in Connection Expert interface window Figure 2 4 From the Connection Expert window highlight the GPIB instrument and then select Change Properties Within the configurable properties window Figure 2 7 change the address to the new address setting and select
48. VXI 11 protocol 46 53220A 53230A User s Guide 53220A 53230A Software Installation and Interface Configuration 2 4 Add LAN Instruments fe Agilent Connection Expert Eile Edit View I O Configuration Tools Help 2 Refresh All A Undo E Properties a Interactive 10 E3 Add Instrument Bw Add Interface x Delete gt a Task Guide instrument 1 0 on this PC LAN Instrument 53230A a Tasks for This Instrument Refresh All g Refresh this instrument E S CND7393H5Q J Bi Change properties F COMLCASRLL Change Proper GF COM4 ASRL4 z amag to this a ba GPIBO Instrument Properties Installed Drivers fZ 53230A GPIBO 3 INSTR iz Change the label PXIO VISA address TCPIPO A 53230A 00050 Ivid agile 3g Add a programming a tcrro alias 1 Z 53230A A 532304 00050 Ivid agilent com IDN string Agilent 53230A U500000050 00 1 8 Ignore ME Socket protocol Manufacturer Agilent K velte a usso Model code 53230A a i USBO 0x0957 0x1907 USO0000050 0 INSTR x g Serial number us00000050 General Tasks fy 53230ACounter Firmware 00 189 1033 4546 1 18 3 47 99 1 jj g Refresh all SICL address lan A 53230A 00050 Ivid agilent co EY Add an instrument configured interfaces Address check Auto identify More Information l Instrument Web Interface 16 0 13931 0 32 bit Agilent VISA is the primary VISA library Figure 2 4 Keysight Connection Expert Interface Window Using the Sockets Pro
49. a probe the counter input impedance should be set accordingly IMQ 509 CONFigure and MEASure do not change the probe factor setting Following a reset RST or an instrument preset SYSTem PRESet or Preset key the probe factor is set to 1 Input Coupling O OG amp Channel Setup 1 Coupling JAC DC a BW Limit Off 100k Probe None 10 1 Impedance 1MQ 500 BV 5OV The input to the 53220A 53230A counter is either DC direct coupled or AC capaci tive coupled and is set using the the command INPut 1 2 COUPling AC DC INPut 1 2 CouPling query form AC coupling removes the signal s DC content and centers the signal at 0V The measur able frequency range channels 1 and 2 with AC coupling is 53220A 53230A User s Guide 125 4 DC 126 53220A 53230A Input Signal Conditioning e AC 10 Hz 350 MHz e DC 1 mHz 350 MHz DC coupling extends the frequency range across the full bandwidth of the instrument 1 mHz 350 MHz CONFigure and MEASure do not change the coupling setting Fol lowing a reset RST or front panel preset Preset the coupling is set to AC When selecting AC or DC coupling the amplitude of the input signal must also be con sidered DC coupling is applicable for most measurements especially those requiring a specific trigger level Rather than reducing the signal amplitude by changing the counter range AC coupling can be used to
50. aborts a measurement in progress RST resets the counter to its factory default values The counter also returns to the idle state after the total number of measurements deter mined by the TRIGger COUNt and SAMPle COUNt settings are complete i e of measurements TRIGger COUNt x SAMPle COUNt 148 53220A 53230A User s Guide Triggering and Gating 5 Idle state return to idle state when readings TRIGger COUNt x SAMPle COUNt TRIGger SOURce Trigger Source TRIGger SLOPe Trigger Slope TRIGger DELay Trigger Delay TRIGger COUNt Trigger Count SAMPle COUNt Sample Count Figure 5 3 System Trigger Sequence System Trigger Source a Source Rdgs Trigger Uinternal TEG Internal Manual External Local 53220A 53230A User s Guide 149 5 150 Triggering and Gating The system trigger is configured using the commands within the TRIGger and SAM Ple subsystems Figure 5 3 show the sequence in which the commands are commonly used The system trigger source which starts the trigger gate cycle is set with the command TRIGger SOURce IMMediate EXTernal BUS TRIGger SOURcCe query form trigger source IMMediate sets a continuous trigger signal By default CONFigure sets the trigger source to IMMEDiate trigger source EXTernal sets the trigger source to an external trigger applied to the rear panel Trig In BNC connector trigger source BUS causes
51. after setting the trigger source to internal the trigger count to 1 and the sample count to 1 The gate time is set to 0 1 seconds 53220A 53230A User s Guide 79 3 80 53220A 53230A Measurements Using CONFigure and the appropriate low level commands the configuration can be changed before the measurement is initiated the abbreviated form of the SCPI com mands are shown configure counter for frequency measurements change parameter values from those set by CONFigure CONF FREQ 1 0E6 2 TRIG SOUR EXT TRIG SLOP POS TRIG COUN 2 SAMP COUN 5 SENS FREQ GATE TIME 0 005 SENS FREQ GATE SOUR TIME INET Using CONFigure The following command CONFigure returns the measurement function configured by the last CONFigure or MEASure command sent to the instrument Sending CONFigure after power is cycled generates a settings conflict error until CONFigure or MEASure is sent For example CONF FREQ 1 0E6 2 CONF returns including quotes FREQ 1 00000000000000E 006 1 00000000000000E 004 2 which includes the function expected value calculated resolution and channel If a channel number is not specified in the CONFigure or MEASure command no channel is included in the return string 53220A 53230A User s Guide 53220A 53230A Measurements 3 Frequency and Period Measurements The 53220A 53230A measurements covered in this section include frequency fre
52. and the Count value and zoom and pan are also reset 53220A 53230A User s Guide 53220A 53230A Math Graphing and Data Logging 6 Reading Decimation The trend window displays a maximum of 100 readings When greater than 100 read ings are displayed the readings are decimated grouped together and represented by decimation points The number of readings in a decimation group is the reading count 100 Figure 6 10 is a trend chart of 100 000 readings in which the readings have been deci mated Reading number of first reading in selected Max maximum reading values within groups at decimation group decimation points selected by Marker1 top and Marker2 bottom Span number of decimation groups between marker locations Span difference in maximum values between marker locations Max 101 149 84k Reading 39000 Frequency FAIL Max 99 149 783k Reading 21000 Channel 1 2 000 052 5k Ja Count 100000 Limit checking upper and lower enabled through Math functions optional 98 849 592k 99999 Min minimum readings vere le Manon le within groups at selected Off decimation points gt Off On E position window indicates decimation and relative max amp min values within the group A Readings are decimated Figure 6 10 Trend Chart Display Format with Decimation There are 1 000 readings in each decimation group in Figure 6 10 100 000 readings 100 points displayed The number of readings in each group chang
53. are expected Chl1 Ch2 Ch2 Ch1 2 8E 10 to 3 5E 9 expected Ch1 Ch3 Ch2 Ch3 Option 106 1 6E 11 to 3 5 expected Ch1 Ch3 Ch2 Ch3 Option 115 6 6E 12 to 1 2 expected Ch3 Ch1 Ch3 Ch2 Option 106 0 28 to 6 0E10 53220A 53230A User s Guide 83 3 84 53220A 53230A Measurements expected Ch3 Ch1 Ch3 Ch2 Option 115 0 85 to 15 0E10 resolution all channels 1 0E 15 expected to 1 0E 5 expected default resolution corresponds to a 0 1s gate time channel_pair settings are 1 2 2 1 1 3 3 1 2 3 3 2 Within the pair the first channel represents the ratio s numerator and the second channel represents the ratio s denominator The default channel_pair is 1 2 Frequency Ratio Examples using MEASure ratio measurement expecting a 1 1 ratio set 6 digits of resolution of ratio measurement RST reset to start from known state MEAS FREQ RAT 1 1 0E 6 1 2 using CONFigure ratio measurement expecting a 1 1 ratio set 9 digits of ratio resolution RST reset to start from known state CONF FREQ RAT 1 1 0E 9 1 2 INP LEV 1 5 set a 1 5V threshold level ch 1 INP2 LEV 1 5 set a 1 5V threshold level ch 2 READ Notes 1 The digits of resolution in the above ratio measurements is set by the resolution parameter 1 0E 6 1 0E 9 In effect the exponent corre
54. are provided in the 53220A 53230A Service Guide Option 300 provides battery operation of the 53220A 53230A using a 12 lithium battery Per formance of this battery will degrade over time as a function of the number of battery charge discharge cycles Refer to local state or Federal regulations when disposing of or recycling either battery s 53220A 53230A User s Guide Safety Information The following general safety precautions must be observed during all phases of operation of this instrument Failure to comply with these precautions or with specific warnings or operat ing instructions in the product manuals violates safety standards of design manufacture and intended use of the instrument Keysight Tech nologies assumes no liability for the customer s failure to comply with these requirements General Do not use this product in any manner not specified by the manufacturer The protective features of this product may be impaired if it is used in a manner not specified in the operation instructions Before Applying Power Verify that all safety precautions are taken Note the instrument s external markings described under Safety Symbols Ground the Instrument The Keysight 53220A 53230A is provided with a grounding type power plug The instrument chassis and cover must be connected to an electrical ground to minimize shock hazard The ground pin must be firmly connected to an electrical ground safety gr
55. before the total reading count is reached TRIGger COUNt x SAMPle COUNt to prevent a memory overflow If there are no readings available or measurements in progress when R is sent err 230 Data corrupt or stale is generated Readings are transferred in Definite Length Block format Table 7 1 whether in ASCII or REAL binary format FORMat subsystem The oldest reading is transferred first first in first out R Example frequency meas of 500 kHz signal with uHz resolution CONF FREQ 500E3 1E 6 1 configure counter TRIG COUN 2 set trigger count SAMP COUN 2500 set readings trigger INIT IMM initiate counter to start readings 53220A 53230A User s Guide 243 7 Formats and Data Flow walt 2500 seconds R 2500 read and remove first 2500 readings walt 2500 seconds R read and remove all remaining readings DATA REMove lt count gt WAIT is used following INITiate IMMediate Transfers count number of readings to the output buffer and erases the readings in reading memory Unlike FETCh DATA REMove can be used to transfer readings before the total reading count is reached TRIGger COUNt x SAMPle COUNt to prevent a memory overflow However count is a required parameter and therefore count number of readings must be available before they can be removed Including WAIT will cause the command to wait until count readings are available This will prevent er
56. bring the signal in contact with the hysteresis window defined by the trigger level This is represented in Figure 4 2 also see Threshold Level and Sensitivity input signal with DC offset E trigger point programmed trigger level J Pa reset point U Hysteresis window k Fi DC coupling AC coupling Figure 4 2 Using AC Coupling to Reach Trigger Points Settling Time Between DC and AC Coupling There is an inherent settling time when changing from DC to AC coupling As a measure of this time a signal with a 5V DC component DC coupled will typically center around OV AC coupled in one second 53220A 53230A User s Guide 53220A 53230A Input Signal Conditioning 4 Coupling Example period measurement of expected 10 MHz signal maximum resolution use channel 1 CONF PER 0 1E 6 MAX 1 INP COUP AC set AC coupling Bandwidth Limiting Low Pass Filter Level BW Limit Probe f p a 3 Setul 4 P Off 100k None 10 1 channel Genin Coupling Impedance AC DC 1MQ 500 5V 50V For measurement applications of 100 kHz or less a 100 kHz low pass filter can be enabled within the signal path to eliminate noise introduced by higher frequency compo nents of the input signal The bandwidth filter is switched into the signal path using the command INPut 1 2 FILTer LPASs STATe OFF ON INPut 1 2 FILTer LPASs STATe query for
57. disabling or enabling the USB inter face you must cycle power for the change to take affect When disabled the interface cannot be configured by the Connection Expert utility Using the USB Interface with Interactive IO The Web enabled instrument interface is not available from the USB interface An alternate programming method is to use the Connection Expert Interactive IO util ity see Using Interactive IO 53220A 53230A User s Guide 53220A 53230A Software Installation and Interface Configuration 2 Configuring the GPIB Interface The following information assumes a GPIB card or USB GPIB interface is present on your computer Programming access to the 53220A 53230A is also available through the GPIB inter face GPIB cables can be connected to the PC in a star all cables connect directly to the computer or linear instrument to instrument configuration Adding Instruments to the GPIB Configuration To add instruments to the GPIB interface highlight GPIBO and select Add Instrument on the Connection Expert tool bar Figure 2 4 In the New GPIB Instrument window that appears Figure 2 7 select the counter s GPIB address note factory set address 3 and select OK Connection Expert will attempt to establish a communication path to the instrument If the counter is at the address specified the instrument will be added to the list of GPIB configured instruments 53220A 53230A
58. does so from a configuration based on multiple parameters The easiest and most common starting point for setting these parameters programmatically is using commands within the CONFigure and MEASure subsystems These commands are considered high level commands as multiple counter parameters are set or defaulted from a single command Low level commands are those within other subsystems i e INPut TRIGger SENSe that allow you to change a parameter value from that set or defaulted to using CONFigure or MEASure Executing commands from the CONFigure and MEASure subsystems is equivalent to setting parameters individually using the commands subsystems shown in Table 3 2 Table 3 2 Counter Configuration using CONFigure and MEASure Parameter CONFigure MEASure Setting Low Level Command Subsystem Input range low pass filtering coupling imped INPut 1 2 RANGe ance and noise rejection are unchanged from INPut 1 2 FiLTer previous or their power on settings INPut 1 2 COUPling INPut 1 2 IMPedance INPut 1 2 NREJect Measurement Mode AUTO for frequency frequency ratio average SENSe FREQuency MODE period PRF or PRI measurements Unchanged for all others Trigger source IMMediate TRIGger SOURce Trigger slope NEGative TRIGger SLOPe Trigger delay 0 0 seconds TRIGger DELay Trigger count 1 trigger TRIGger COUNt Sample count 1 sample SAMPle COUNt Parameter CONFigure MEASure
59. events are counted on the denominator channel The number of events is specified with the command SENSe GATE STOP HOLDoff EVENts lt count gt MINimum MAXimum DEFault SENSe GATE STOP HOLDoff EVENts query form 53220A 53230A User s Guide Triggering and Gating 5 holdoff source TIME holds off the gate stop close for a period set by the command SENSe GATE STOP HOLDoff TIME lt time gt MINimum MAXimum INFinity DEFault SENSe GATE STOP HOLDof f TIME query form Note for frequency frequency ratio average period PRF and PRI measurements the minimum gate stop close holdoff time is 100 usec for the 53220A or 1 usec for the 53230A INFinity or 9 9E 37 is accepted only for the TOTalize measurement function When selected the gate remains open until an ABORt or RST command or a device clear is received Gate Stop Source Gate Setup Gate Src Start Stop l Gate Out Ad jy Menu i Menu i Off On l Stop Sre Holdoff sro BDTI i Imm Time Time f Imm Ext anc Chan 2 The gate stop source determines when the measurement gate is closed following the stop hold off Setting a gate stop source does not apply to rise fall time duty cycle pulse width phase and single period measurements These measurements complete automatically on the next appropriate edge on the input channel 53220A 53230A User s Guide 185 5 186 Triggering and
60. gate signal threshold 163 gating 158 setting the gate time 159 frequency ratio measurements 82 front panel description 241 fields 241 front panel display modes 212 225 front panel keys input channel configuration 120 front panel overview 13 G gain and offset 199 gap free measurements 71 Gate Out BNC 172 gate signal polarity frequency measurements 162 time interval measurements 171 totalizing 166 gate signal threshold frequency measurements 163 totalizing 167 gate source 156 gate start configuration example 181 gate start delay 181 gate start source 177 gate stop configuration example 189 gate stop and stop holdoff 182 gate stop holdoff 183 gate stop source 185 gate time frequency measurements 159 53220A 53230A User s Guide gating 156 burst configuration 176 burst gate example 176 frequency measurements 158 gate cycle 145 setting the gate source 156 settings summary 144 time interval measurements 170 totalizing 165 gating cycle 145 general programming information 36 GPIB adding instruments 52 address string 54 changing the address 50 54 interface configuration 43 H help built in 23 help language Chinese 27 French 27 German 27 Japanese 27 Korean 27 histogram ranges automatically setting 218 histograms 211 bins 215 clearing data 227 displaying on the front panel 212 225 enabling 213 example 219 lower and upper ranges 216 resetting 220 setting minimum and maximum bin ranges 217 setting
61. gate time or expected values and gate times as a function of digits Table 5 2 Resolution and Gate Time aaa Time Resol tion Resolution Calculating Digits and Gate SASEN Digits Digits Time Reciprocal Mode Tss 20 ps Auto Continuous Reciprocal 1 usec 4 7 4 7 itr sul Digits as a function of gate time 100 usec 6 7 6 7 1 msec 7 7 7 7 Digits Log49 gate time T 10 msec up to 10 8 7 100 msec up to 11 9 7 1 sec up to 12 10 7 10 sec up to 13 11 7 100 sec up to 14 12 7 Digits as a function of expected 1000 sec up to 15 13 7 usec value CONFigure MEASure Gate Time Resolution Resolution Digits Log4o expected value 53220A Digits Digits Log4o resolution Tss 100 ps Auto Reciprocal 100 usec 6 6 1 msec 7 7 10 msec up to 10 8 100 msec up to 11 9 Gate time as a function of digits 1 sec up to 12 10 10 sec up to 13 71 gate time 10 digits Tss 100 sec up to 14 12 1000 sec up to 15 13 Resolution Enhanced 53220A 53230A User s Guide 159 5 Triggering and Gating Setting the Gate Time Gatesetuy ___ EUA z Gate Gate Src Gate Gate Out Timed Time Off On A measurement gate time can be specified directly with the command SENSe FREQuency GATE TIME lt time gt MINimum MAXimum DEFault SENSe FREQuency GATE TIME MINimum MAXimum DEFault query form CONFigur
62. granted to the federal government include only those rights customarily provided to end user customers Keysight provides this custom ary commercial license in Software and technical data pursuant to FAR 12 211 Technical Data and 12 212 Computer Software and for the Department of Defense DFARS 252 227 7015 Technical Data Commercial Items and DFARS 227 7202 3 Rights in Commercial Com puter Software or Computer Software Documentation Trademarks Microsoft and Windows are U S regis tered trademarks of Microsoft Corpora tion 53220A 53230A User s Guide Waste Electrical and Electronic Equipment WEEE Directive 2002 96 EC This product complies with the WEEE Directive 2002 96 EC marking requirement The affixed product label see below indicates that you must not discard this electrical electronic prod uct in domestic household waste Product Category With reference to the equipment types in the WEEE directive Annex 1 this product is classified as a Monitoring and Control instrumentation product Do not dispose in domestic household waste To return unwanted products contact your local Keysight office or see www keysight com environment product for more information Lithium Battery Recycling The 53220A 53230A counters contain a 3V coin cell lithium battery Keysight recommends that this battery be replaced every year at the instrument s 1 year calibration interval Replacement procedures
63. how the counter is operated programmatically The com mands are described in detail in the Programmer s Reference section of the Keysight 53210A 53220A 53230A Product Reference CD 53220A 53230A User s Guide measurement data CALCulate1 SMOothing STATe ON oo 53220A 53230A Math Graphing and Data Logging 6 CALCulate1 AVERage STATe ON statistics CALCulate1 AVERage CALCulate1 SCALe STATe ON oo oo CALCulate1 LIMit STATe ON CALCulate1 SMOothing CALCulate1 SCALe CALCulate1 LIMit moving average scaling and offset limit checking INITiate IMMediate CALCulate2 TRANsform HISTogram STATe ON CALCulate1 STATe ON oo histograms CALCulate2 TRANsform HISTogram readings initiated by INITiate IMMediate are sent to reading memory readings initiated by READ are sent to reading memory and to the output buffer Figure 6 1 Enabling the Math Operations Enabling the CALCulate1 Subsystem Individual math operations require the CALCculatel1 subsystem and the specific math operation to be enabled before the operation is performed The command used to enable the CALCulatel1 subsystem is CALCulate 1 STATe OFF ON CALCulate 1 STATe query form ON enables the subsystem OFF disables the subsystem With the subsystem disabled measurement data is sent directly to the output buffer and or reading memory with no math operat
64. indices Stop Stop Save No Savo time or number of readings remaining Figure 6 12 Trend Chart Display During Data Logging When logging is complete the Marker Pan and Zoom softkeys can be used review the data Note that pressing the Graph key followed by the Trend Chart softkey does not retain the data in the display If greater than 100 readings are logged the readings are decimated grouped together and represented by decimation points see Trend Charts and Reading Decimation Stopping the Application Pressing Stop Save or Stop No Save stops data logging before the duration time or num ber of readings is reached All readings logged to that point are saved or discarded depending on the key pressed 53220A 53230A User s Guide 235 6 53220A 53230A Math Graphing and Data Logging Graphics Functions and Reading Memory Figure 6 13 summarizes the effects on reading memory when statistics and histograms are reset and when trend charts are cleared Chart X Max 10 399 968 739MHz Frequency Off On X Min 10 399 968 552MHz Channel 1 sl an Bin Size 1 870 423 238 7mHz Count 100 Wait For Trig CH 1 Frequency Wait For Trig Statistics reading memory 10 399 968 64 1muz ott Be Mean 10 399 968 658MHz Max 10 399 968 776MHz StdDev 40 971 400 850mHz Min 10 399 968 554MHz Count 100 Allan Deviation 16 834 906 384mHz X Min Hz 0 Out of range values are not displayed 101 record Statist
65. instrument the rear panel input terminals are used When programming the counters from an I O interface configuration is provided by commands within the SCPI INPut subsystem Within the SCPI commands INPut 1 2 in the syntax refers to input channels 1 and 2 As such these com mands do not apply to third channel Option 106 or 115 The counter channels with the exception of frequency ratio and selected time interval measurements are separate and can be configured independently Measurements on the channels do not occur simultaneously however Switching between channels retains the channel configuration but ends the current measurement The newly selected channel is re initiated and measurements begin when the programmed trigger conditions are met Signal Conditioning Path 120 Figure 4 1 represents the counter s signal conditioning path 53220A 53230A User s Guide 53220A 53230A Input Signal Conditioning 4 Input DC Coupling Protection Buffer AC Coupling wa en Selectable 100 kHz INPut 1 2 COUPling INPut 1 2 IMPedance Low Pass Filter INPut 1 2 PROTection Range INPut 1 2 PROTection CLEar Selection INPut 1 2 FILTer INPut 1 2 RANGe INPut 1 2 PROBe Threshold Level and Sensitivity trigger gating INPut 1 2 LEVel 1 2 SYSTem ALEVel FREQuency INPut 1 2 LEVel AUTO INPut 1 2 LEVel 1 2 RELative INPut3 BURSt LEVel INPut 1
66. or R command Chapter 7 3 The ABORt command sent from the remote interface or changing the counter function from the front panel stops continuous totalizing 53220A 53230A User s Guide 111 3 53220A 53230A Measurements Burst Pulse Measurements Freq Ratio Time Pulse Period Stamp Burst Freq Pulse Pulse Burst Burst PRF PRI Freq Width Microwave burst pulse measurements are available on channel 3 Option 106 6 GHz Microwave Input or Option 115 15 GHz Microwave Input with pulse measurement Option 150 The pulse measurements covered in this section include burst carrier frequency pulse repetition interval PRI pulse repetition frequency PRF positive on width and neg ative off width Figure 3 13 identifies these measurements within a burst signal NOTE The SCPI commands listed in these examples are provided as an introduction to how measurements involving microwave pulses are made Commands may be included even though they specify default values but which should be consid ered when modifying the examples for actual use Refer to the Programmer s Reference on the Keysight 53210A 53220A 53230A Product Reference CD for additonal information For further information on microwave measurements see Application Note 200 1 Fundamentals of Microwave Frequency Counters also included on the CD 112 53220A 53230A User s Guide 53220A 53230A Measurements 3 PRI PRF_
67. same Same Subsystem For commands that share the same subsystem multiple commands can also be sent in a single string The first command references the root node and sub sequent commands separated by semicolons are referenced to the same level as the pre vious command As an example the command sequence representing the CALCulate2 subsystem CALC2 TRAN HIST STAT ON CALC2 TRAN HIST POIN 15 CALC2 TRAN HIST RANG AUTO ON CALC2 TRAN HIST RANGe AUTO COUNt 300 can be sent in a string as CALC2 TRAN HIST STAT ON POIN 15 RANG AUTO ON AUTO COUN 300 Separate Command Lines or Strings Sending commands in a single string rather than in separate command lines can eliminate settings conflict errors When sent on separate lines the counter checks for errors as each command line is parsed When sent as a string the entire string is parsed before error conditions are checked Linking IEEE 488 2 Common Commands and SCPI Commands In acommand string containing both IEEE 488 2 common commands e g RST WAI OPC and SCPI instrument commands the common commands are separated from the SCPI commands by a semicolon An example is shown in the following string CALC STAT ON AVER STAT ON INIT WAI CALC AVER AVER 53220A 53230A User s Guide 53220A 53230A Measurements 3 The MEASure and CONFigure Commands Each time the counter takes a measurement it
68. the absolute threshold for the start event and LEVe12 sets the threshold for the stop event Setting an absolute level disables the counter s auto level function CONFigure and MEASure enable auto leveling and set the threshold to 50 A reset RST or front panel preset Preset also enables auto leveling and sets the threshold to 50 If auto leveling is enabled querying the absolute level on the current measurement channel returns the corresponding threshold voltage If the channel is not the measurement channel 9 91E 37 not a number is returned Level2 can only be queried for rise fall time and single channel time interval measurements Querying Level2 during other measurement functions returns 9 91E 37 not a number Using Auto Level r Auto Level WETEN Off On NoiseRej Off On Automatic setting of the input threshold level is based on the positive and negative peaks of the input signal Auto level is enabled with the command INPut 1 2 LEVel 1 2 AUTO OFF ON ONCE INPut 1 2 LEVel 1 2 auTo query form 53220A 53230A User s Guide 53220A 53230A Input Signal Conditioning 4 OFF disables auto leveling ON enables auto leveling Auto level ONCE immediately sets an auto level and then disables auto leveling When auto level is enabled the threshold level is specified as a percentage of the peak to peak input voltage see Setting Relative Threshold Levels The CONFigure and
69. to either mode requires the instrument to be restarted When updating the instrument firmware 53220A or 53230A mode must be set Documentation of the 53132A command set is not provided with the 53220A 53230A instrument Use of the older SCPI command set is discouraged for new use but is available for customers who require it 53220A 53230A User s Guide 31 1 Preparation for Use Securing the Instrument The 53220A 53230A counter can be secured to the National Industrial Security Program Operating Manual NISPOM standard as shown below System Store 140 Cal Z Instr System a Utility Battery Recall cont autota Setup ri etup Vpn 6 0 el Settings tine jones j NISPOM SS ae e How the User s Guide is Organized This user s guide is written for the operator using the instrument from the front panel and for the programmer controlling the counter from a remote LAN USB GPIB interface As such most topics include a front panel key sequence followed by the corresponding SCPI commands For example Coupling I Range BW Limit Probe E a Gy Channel Setup JAC DC BV 50v Setup Off 100k None 10 1 The input impedance of the 53220A 53230A counter can be set to either 509 or 1 MQ using the command INPut 1 2 IMPedance lt impedance gt MINimum MAXimum DEFault INPut 1 2 IMPedance MINimum MAXimum DEFault query form 32 53220A 532
70. to highlight the desired file 3 Press Select to delete the file Note pressing Select deletes the state file immediately 53220A 53230A User s Guide 263 7 Formats and Data Flow Copying and Moving Files System ae eee Store 140 Cal Instr System Battery lt Utility Recall Config jAutoCal 4 Setup Setup Option 6 Help Sae pate i anag ettings ime iles cla iit NISPOM r Action l H Perf 0 ertorm L Copy Je Pah apy Action Copy file or folder Path File ee Copy Path Action Copy Perform 4 Copy Browse Path Copy Files can be copied or moved within the drive or between drives MMEMory COPY lt file1 gt lt file2 gt MMEMory MOVE lt file1l gt lt file2 gt copies or moves source file1 to destination ile2 The file format is drive path lt file_name gt drive is either INT internal flash memory or USB external memory device If the file copied or moved is not in the specified current folder MMEMory CDIRectory path in the source and destination drives must be an absolute folder path beginning with File names must include the extension The destination folder in the copy or move command must currently exist The folder is 264 53220A 53230A User s Guide not created during the copy or move Formats and Data Flow 7 The following examples show different locations to which file
71. up 215 226 viewing data 225 host name and IP address obtaining 38 host names and IP addresses 47 Index hysteresis 137 time interval errors 138 idle state 148 impedance 122 example 122 indefinite length arbitrary block 238 initiating the counter 154 input auto level 131 channel characteristics 120 coupling 126 impedance 122 low pass filter 127 measuring signal levels 140 measuring signal strength 140 noise rejection 137 noise rejection example 138 probe factor 125 probe input compatibility 125 probes 122 protection limits 123 pulse measurement threshold 136 pulse threshold example 137 range 124 settings summary 121 signal path 120 slope example 140 threshold level and sensitivity 129 threshold level example 132 threshold slope 139 voltage overload bit 123 input slope example 140 instrument addressing GPIB address string 54 IP addresses and host names 48 USB address string 50 instrument help 23 instrument manuals 16 instrument overview 15 instrument states 254 256 Interactive IO 55 interactive IO 54 291 Index internal flash memory 247 internet browser configuration 38 IO adding GPIB instruments 52 adding LAN instruments 44 IO interface adding instruments 43 IO libraries 41 system requirements 42 IO software installation 41 IP address and host name obtaining 38 IP addresses and host names 47 IVI drivers installation 43 IVI COM driver updates 56 61 L LAN adding instruments 44 interface confi
72. with the command CALCulate 1 AVERage ADEViation Allan deviation is used for frequency measurements only and requires continuous gap free measurements SENSe FREQuency MODE CONTinuous for highest accuracy Continuous mode is available with the 53230A only Allan deviation is also available with the 53220A however the 53220A does not sup port continuous gap free measurements Example Setting up an Allan Deviation Measurement 53230A 53220A 53230A User s Guide CONF FREQ 1 TRIG COUN 1 SAMP COUN 300 SENS FREQ MODE CONT SENS FREQ GATE TIME G 53220A 53230A Math Graphing and DataLogging 6 frequency measurement on ch 1 set trigger count take 300 readings set continuous 1e3 1 ms gate time CALC STAT ON CALC AVER STAT ON NIT WAL CALC AVER ADEV Standard Deviation gap free mode enable CALCulatel subsystem enable statist ics initiated the measurements wait for all rdgs to complete compute Allan deviation Standard deviation is available with both counters using the command CALCulate 1 AVERage SDEViation The CALCulatel subsystem and statistics must also be enabled before the standard deviation can be determined Clearing Resetting Statistics The current set of reading statistics is clear by any of the following e enabling statistical functions CALCulate 1 AVERage e anew measureme
73. 0 5V Vmax Vmin and Vpp are viewable on the front panel With AC coupling Vmax and Vmin would be 1 5V respectively If a 30 relative threshold is specified for the DC coupled signal described above the corresponding absolute value is 1 4V The same relative threshold for an AC coupled signal has an absolute value of 0 6V The absolute value of any relative threshold level can be queried using INPut 1 2 LEVel 1 2 ABSolute or computed as Vmin threshold x Vpp level w DC coupling 0 5 0 30 x 3 1 4V level w AC coupling 1 5 0 30 x 3 0 6V 53220A 53230A User s Guide 133 4 134 53220A 53230A Input Signal Conditioning System Auto Level Range System Preset a Store 1 0 Cal 7 Instr System Battery lt utuhty J Recall Config AutoCal ri Setup ri Setup Option 6 Self TimeBase PhaseMeas Time Out Auto Level Test Settings ue Auto Settings iL Slow Auto leveling is available for two input frequency ranges 50 Hz to lt 10 kHz and fre quencies gt 10 kHz The auto level period is shorter for frequencies gt 10 kHz when an auto level frequency range is set from the front panel or specified by the command SYSTem ALEVel FREQuency lt frequency gt MINimum MAXimum DEFault SYSTem ALEVel FREQuency MINimum MAXimum DEFault query form The frequency parameter values are Interface Frequencies Fre
74. 2 The text of the license and source code can be found at www keysight com find GPLV2 This product utilizes Microsoft Windows CE Keysight highly recommends that all Win dows based computers connected to Windows CE instruments utilize current anti virus soft ware For more information go to the product page at www keysight com find 53220A www keysight com find 53230A Technology Licenses The hardware and or software described in this document are furnished under a license and may be used or copied only in accordance with the terms of such license Declaration of Conformity Declarations of Conformity for this product and for other Keysight products may be downloaded from the Web Go to http regulations prod ucts keysight com and click on Declarations of Conformity You can then search by product number to find the latest version Warranty The material contained in this doc ument is provided as is and is subject to being changed without notice in future editions Further to the maximum extent permitted by applicable law Keysight disclaims all warranties either express or implied with regard to this manual and any information contained herein including but not limited to the implied warranties of mer chantability and fitness for a par ticular purpose Keysight shall not be liable for errors or for incidental or consequential damages in connec tion with the furnishing use or performanc
75. 2 NREJect INPut 1 2 SLOPe 1 2 Figure 4 1 53220A 53230A Input Signal Conditioning Table 4 1 is a summary of power on reset values for the signal conditioning parameters Table 4 1 Input Channel Reset Preset Settings Summary Parameter Setting Impedance 1 MQ Range 1 1 probe 5V Range 10 1 probe 50V Probe factor 1 1 Coupling AC Low pass filter Off Auto level Enabled Level absolute 0 0V Level relative 50 Pulse Envelope channel 3 6 dB Noise Rejection Disabled Slope Positive 53220A 53230A User s Guide 121 4 122 53220A 53230A Input Signal Conditioning Input Impedance Teall ET 4 E a n 4 Coupling Impedan Rang BW Limit Prob ae 3 aC pe lie Sne faa e imi robe i BV 50V Off 100k None 10 1 Channel Setup Q 500 The input impedance of the 53220A 53230A counter can be set to either 50Q or 1 MQ using the command INPut 1 2 IMPedance lt impedance gt MINimum MAXimum DEFault INPut 1 2 IMPedance MINimum MAXimum DEFault query form The 50Q and 1 MQ impedances allow for impedance matching termination and bridg ing applications respectively Using Probes fusing a 1 1 or 10 1 probe the input impedance of the counter should be set to match the compatibility e g 509 1 MQ high Z of the probe See Setting the Probe Factor for more information Following a reset RST or front panel preset Preset the impedance is set
76. 20A 53230A Counter CH 1 Frequency 1 011 993 408 203 13 Vpp 5 31 V Vmin 1 24 V Vmax 6 54 V Freq Period Freq Time Pulse Advanced Nes Ratio Period Stamp Burst Auto USB host port USB Storage Device USB Path is External root directory MMEMory STORe DATA RDG_STORE lt file gt folder creates data csv dat files MMEMory STORe STATe lt file gt sub folder creates state sta files Figure 7 2 Folders and Files within Internal Memory and USB Storage 248 counter flash non volatile memory internal flash instrument firmware 5M readings I batt ry l flash le Ne eS T state storage calibration volatile reading memory 1M readings Path is Internal MMEMory MD IRectory lt folder gt creates folders MMEMory CDIRectory lt folder gt specifies current folder for MMEMory Subsystem 53220A 53230A User s Guide Formats and Data Flow Creating Folders and Files in Flash Memory and on the USB Drive System Preset 3 T C 9 Store g Recall 1 0 Ale Cal Instr stem Config AutoCal 1 Setup Setup r uwo User Settings Folders and files are created in instrument memory and on a USB drive as described in the following sections Creating Folders Settings pase l fee aii NISPOM Y Action i Copy esis can parrer Delete Folder Cap
77. 30A User s Guide 53220A 53230A Software Installation and Interface Configuration 2 Host Names System 0 _ jee 6 E Store 4 Recall Lo yatta 4 Setup 1 Setup Option 1 0 Cal Z Instr System Battery E oH jon eo MAN Settings Settings SA Shift 6 E eae i Modify LAN Set to Settings il ead Defaults Manual Hast Service DHCP ACUC mDNS The 53220A 53230A has a default host name The format of the host name is A 53220A nnnnn Keysight 53220A A 53230A nnnnn Keysight 53230A where nnnnn are the last five digits of the instrument s serial number The instrument host name is reported by Connection Expert for network servers that support Dynamic Domain Name Service DNS For network servers that do not support Dynamic DNS only the IP address is reported Instrument Addressing During programming the 53220A 53230A is accessed through its address string which consists of an IP address TCPIP0 169 254 2 30 inst0 INSTR VXI 11 TCPIP0 169 254 2 30 5025 SOCKET Sockets or host name TCPIP0 A 53230A 00050 keysight com inst0 INSTR Disabling the LAN Interface The LAN interface can be disabled from the front panel by selecting I O Config fol 53220A 53230A User s Guide 49 2 50 53220A 53230A Software Installation and Interface Configuration lowed by LAN Off and cycling power on the instrument When disabled the interface cannot be configure
78. 30A User s Guide Preparation for Use 1 The description of operation which follows typically applies to both front panel and remote usage For general reference the information in this manual is organized as shown in Figure 1 3 a a E E E B Figure 1 3 53220A 53230A User s Guide Organization 53220A 53230A User s Guide 33 1 34 Preparation for Use 53220A 53230A User s Guide Keysight 53220A 53230A 350 MHz Universal Counter Timer User s Guide 2 53220A 53230A Software Installation and Interface Configuration Software Requirements 36 Using the Counter Web Enabled Interface 37 Connecting the Counter and Viewing its Home Page 37 Web Interface Overview 40 Installing the Keysight IO Libraries 42 Installing Instrument Drivers 44 Adding Instruments to the PC Interface 44 Configuring the LAN Interface 45 Configuring the USB Interface 50 Configuring the GPIB Interface 53 Using Interactive IO 56 Firmware and Driver Updates 57 Disabling Calibration Security 57 SCPI Language Emulation Mode 58 Downloading and Installing the Update Utility 58 Downloading the Firmware Update 59 Installing the Firmware Update 59 Downloading IVI COM Driver Updates 62 This chapter contains information on IO libraries drivers and interfaces used to program the 53220A 53230A from selected development environments The chapter includes an introduction to using the counter s web enabled interface and provides information on updat
79. 3220A 53230A User s Guide Keysight 53220A 53230A 350 MHz Universal Counter Timer User s Guide 8 Instrument Status Keysight 53220A 53230A Status System 269 Questionable Data Register Group 269 Standard Operation Register Group 270 Standard Event Register 272 Status Byte Register 273 This chapter covers the status registers used to monitor conditions within the 53220A 53230A counter KEYSIGHT TECHNOLOGIES 8 Instrument Status Error Queue Questionable Data Register EN Voltage Ovid CAL Corrupt Totalize Timebase Error Lower Limit Fail Upper Limit Fail Serial Poll SRE Rdg Mem Ovil STB SRE EEBEREEEERECEEREEE Master Summary RQS STATus QUEStionable CONDition STATus QUEStionable EVENt STATus QUEStionable ENABle STATus QUEStionable ENABle Standard Event Register Operation Complete Calibrating Running on Battery Battery Critical Query Error Device Error Execution Error Command Error Measuring Waiting for Trig ECCEECEEE Power On ESR ESE Internal Reference ESE Instrument Locked Config Chg Notes Rdg Mem Threshold C Condition Register Global Error EV Event Register EN Enable Register Ovid Overload i DE Ovfl Overflow STATus OPERation CONDition STATus OPERation EVENt STATus OPERation ENABle STATus OPERation ENABIe EBEREEEERECEEREEE Figure 8 1 The 53220A 53230A Status System 268 53220A 53230A User s Guide Instrument Status 8
80. 3220A 53230A User s Guide 9 Contents 10 53220A 53230A User s Guide Keysight 53220A 53230A 350 MHz Universal Counter Timer User s Guide 1 Preparation for Use Front and Rear Panel Overview 13 Front Panel 13 Rear Panel 14 Display 14 About the Instrument 15 Materials Included 15 Operating and Storage Environments 17 Electrical Requirements 18 Applying Power 18 Power On LED Status 19 Standby Power 19 Battery Operation 20 Battery Care 22 Using Built In Help 23 Utility Functions 23 Display Configuration 23 User Interaction 27 Reference Settings 28 How the User s Guide is Organized 32 Welcome This user s guide contains configuration and operating information for the Keysight 53220A 53230A 350 MHz Universal Counter Timer The 53220A 53230A is a 2U 1 2 module width LXI Class C instrument The 2U 1 2 module width references refer to the 53220A 53230A s physical size relative to standard EIA rack cabinet dimensions LXI an acronym for LAN eXtensions for Instrumentation is an instrumentation standard for devices that use the Ethernet LAN as their primary remote communications interface KEYSIGHT TECHNOLOGIES 1 Preparation for Use 53230A 350 mHz 20 ps Universal Frequency Count iter Timer CH 1 Frequency 14 993 905 143m Vpp 8 03 V Vmin 4 02 V Vmax 4 02 V Advanced Freq J Auto i Time Ratio Period Stamp GP IB Opt 106 115 ov ka USB Trig In A Line 100
81. 53220A 53230A 350 MHz Universal Counter Timer User s Guide 4 53220A 53230A Input Signal Conditioning Channel Characteristics 120 Signal Conditioning Path 120 Input Impedance 122 Input Range 123 Input Coupling 125 Bandwidth Limiting Low Pass Filter 127 Threshold Level and Sensitivity 128 Burst Measurement Detector Threshold 135 Noise Rejection Hysteresis 137 Threshold Slope 138 Measuring Input Signal Levels and Signal Strength 140 This chapter contains information on configuring the input channels relative to the char acteristics of the input signal expected Configuration includes the channel s impedance range probe factor coupling filtering and threshold level sensitivity settings KEYSIGHT TECHNOLOGIES 4 53220A 53230A Input Signal Conditioning Channel Characteristics There are two plus an optional third input channel on the 53220A 53230A counter Product Option 201 adds parallel additional rear panel access to channels 1 and 2 Product Options 106 and 115 add a 6 GHz or 15 GHz third channel Option 202 places third channel Option 106 115 on the front panel and Option 203 places the third chan nel option on the rear panel If parallel channel 1 and channel 2 inputs are present on the rear panel Option 201 all input specifications apply to the rear terminals only and are relative to 50Q input impedance Performance of the front panel inputs in this instance is not specified Also when calibrating the
82. 53230A Software Installation and Interface Configuration Installing the Keysight IO Libraries The Keysight IO Libraries include the VISA and VISA COM libraries used for program ming the 53220A 53230A in Microsoft development environments Table 2 1 The VISA and VISA COM libraries allow you to send commands from the 53220A 53230A SCPI command set to the instrument The IO libraries also include Keysight Connection Expert described and used later in this chapter The Keysight IO Libraries VISA and VISA COM must be installed prior to installing any other I O drivers e g IVI C IVI COM The Keysight IO Libraries and utilities are often updated to include additional features and improve usability The figures used in this chapter represent the latest version of the IO Libraries available at the time of printing While you may have a different version the process of configuring and adding instru ments to an interface remains basically the same The IO Libraries are contained on the Keysight Automation Ready CD or may be downloaded from the Electronic Test amp Measurement Software page at http www keysight com Before installing the IO libraries review Table 2 2 to verify that your computer meets the specifications required for the latest version of the software 42 53220A 53230A User s Guide 53220A 53230A Software Installation and Interface Configuration 2 Table 2 2 Keysight IO Libraries Suite System Requirements Ope
83. 578E 06 Dividing a time stamp value by the scale factor returns the input signal period e g 1 10077637E 06 11 1 00070579E 7 3 See Chapter 4 for additional information on counter threshold levels and on configur ing the input signal path 4 See Chapter 7 for information on data flow reading memory and on creating data files 53220A 53230A User s Guide 89 3 53220A 53230A Measurements Time Interval Measurements The 53220A 53230A time interval measurements covered in this section include one and two channel time interval rise fall time pulse width duty cycle phase and single period The SCPI commands listed in these examples are provided as an introduction to how time interval measurements are made Commands may be included even though they specify default values but which should be considered when mod ifying the examples for actual use Refer to the Programmer s Reference on the Keysight 53210A 53220A 53230A Product Reference CD for additonal information For further information on time interval measurements see Application Note 200 3 Fundamentals of Time Interval Measurements also included on the CD Time Interval Time Pulse Duty Rise Phasa Single lt lt CS 7 Interval Width Cycle Fall Period 4 P Time Int Start Ch Stop Ch g 1 2 g Level J Level J er aaa i Eae Auto Level MAEA Slope NoiseRej Off On Pos Neg Off
84. 6 SCPI Language Emulation Mode 57 Downloading and Installing the Update Utility 57 Downloading the Firmware Update 58 Installing the Firmware Update 58 Downloading IVI COM Driver Updates 61 53220A 53230A Measurements 63 Counter Measurement Summary 64 Reference Oscillator Configuration 66 Reference Oscillator Source 66 Standby Power to the Reference Oscillator Option 010 70 Setting the Measurement Mode 71 Setting the Measurement Time Out 74 SCPI Syntax Conventions 75 The MEASure and CONFigure Commands 77 Using MEASure 79 53220A 53230A User s Guide Contents Using CONFigure 79 Frequency and Period Measurements 81 Frequency 81 Frequency Ratio 83 Period 85 Time Stamp 87 Time Interval Measurements 90 Time Interval 90 Rise Time and Fall Time 94 Pulse Width 97 Duty Cycle 100 Phase 103 Single Period 105 Totalizing Measurements 107 Gated 107 Continuous 110 Burst Pulse Measurements 112 Carrier Frequency 113 Pulse PRI and PRF 114 Positive and Negative Widths 117 4 53220A 53230A Input Signal Conditioning 119 Channel Characteristics 120 Signal Conditioning Path 120 Input Impedance 122 Input Range 124 Input Coupling 126 Bandwidth Limiting Low Pass Filter 127 Threshold Level and Sensitivity 129 Burst Measurement Detector Threshold 136 Noise Rejection Hysteresis 137 53220A 53230A User s Guide 7 Contents Threshold Slope 139 Measuring Input Signal Levels and Signal Strength 140 5 Triggering a
85. 65 counter accuracy 20 counter measurement summary 64 coupling 126 example 127 195 coupling and threshold levels 133 creating data files 251 289 Index creating folders 249 creating state files 253 cycling power 20 D data flow 240 data formats ASCII 239 REAL 239 data scaling 195 data smoothing 194 example 195 date and time setting 28 dc coupling 126 decimation 229 definite length arbitrary block 238 deleting files 261 deleting folders 261 development environments 36 digit group separator 25 digits of resolution 158 disabling gate out 172 disabling the battery 21 display configuration 23 display modes 212 225 display overview 15 downloading firmware updates 57 downloading the IVI COM driver 61 driver requirements 36 driver updates 56 duty cycle measurements 99 E electrical operating conditions 18 electrical requirements 18 emulation mode 53100 series 30 disabling for firmware updates 57 enabling 209 enabling histograms 213 290 enabling limit checking 209 enabling scale functions 196 enabling statistical functions 203 enabling the battery 21 environment operating and storage 17 environmental operating conditions 17 error messages 275 examples burst carrier frequency measurement 114 burst pulse positive and negative widths 117 burst pulse repetition frequency 116 burst pulse repetition interval 116 creating a data file 252 creating state files 254 DATA LAST 245 REMove 245 data scalin
86. A counter math functions include smoothing null scale statistics and limit checking Figure 6 1 is a description of how the functions are enabled The math functions are enabled at two levels 1 the CALCulate 1 subsystem as a whole is enabled and 2 the individual math operation is enabled Math operations begin once the measurements are started either by INITiate IMMediate or READ or as soon as the operation is selected from the front panel with internal triggering Readings are processed real time and displayed stored in reading memory and sent to the ouput buffer they are not post processed from reading memory The number of readings processed for a given trigger cycle Chapter 5 Triggering and Gating is determined by the trigger count TRIGger COUNt and the number of readings per trigger SAMP1le COUNt The default trigger count and sample count set by each command is 1 Each time the counter is initiated reading memory is cleared and a new set of math processed data is generated From the front panel read ings are processed continually if the trigger source remains at its default INTernal set ting The math and graphics functions covered in this chapter are enabled individually Figure 6 1 However multiple operations may be enabled at the same time and performed on the same set of readings The SCPI commands and parameters listed throughout this chapter are pro vided as a guide to
87. ATE commands see Advanced Gate Control later in this chapter 53220A 53230A User s Guide Triggering and Gating 5 Totalizing Gated Continuous B 100 000ms Gate Sre elias Gate Out Off On Timed Ext Adv Chan 2 Back Setting the Gate Source For gated counts of events edges on the input channels configured by CONFigure TOTalize TIMed The command used to set or change the gate source is SENSe TOTalize GATE SOURce TIME EXTernal INPut 1 INPut 2 ADVanced SENSe TOTalize GATE SOURce query form gate source TIME enables totalizing on the input channels for a specified period Setting the Gate Time The gate time is set with the command SENSe TOTalize GATE TIME lt time gt MINimum MAXimum INFinity DEFault 53220A 53230A User s Guide 165 5 Triggering and Gating SENSe TOTalize GATE TIME MINimum MAXimum DEFault query form CONFigure and MEASure automatically set the gate source to TIME and the gate time to the value of their gate_time parameter To specify a gate time and source directly for totalizing set gate time and source SENS TOT GATE TIME 10 set gate time 10s SENS TOT GATE SOUR TIME set gate source External Gate Sources Gate sources EXTernal INPut 1 and INPut2 are external sources EXTer nal is the counter s rear panel Gate In Out BNC and INPut 1 INPut2 repre sented by softkeys Chan and Chan 2 ar
88. Any interruption or disconnection of the protective earth terminal will cause a potential shock hazard that could result in personal injury Under battery power the instrument chassis may float to the potential of the mea sured signal supplied by the user System Battery utility Setup Option Store 4 Recall I7 4 Config Instr 4 Setup Ca AutoCal Battery Battery Off On Level k With Battery Option 300 installed and enabled the 53220A 53230A counter can be operated using battery power for up to three hours Removing AC power when the battery is enabled switches the counter to battery power automatically with no interruption of operation Similarly there is no interruption in the transition back to line power provided line power is connected before the battery is disabled 53220A 53230A User s Guide Preparation for Use 1 Enabling and Disabling the Battery When using the instrument with the Battery Option 300 for the first time after purchase or if the instrument has not been used for an extended period the battery must be charged before use With line power connected and the instrument either on or off allow four hours for the battery to reach full charge Battery Option 300 is disabled when the instrument is shipped from the factory Battery control enable disable is provided by the front panel keys shown on the previous page or using the command SYSTem BATTery E
89. B Addresss30 400 GPIB Interface Enter the IP address in the browser s address window With Advanced information selected the counter s Web home page should appear as shown in Figure 2 1 Browser Configuration In some network configurations a proxy server may prevent access to the instrument i e page cannot be displayed after the IP address is entered In this situation the proxy must be configured from the browser such that the proxy is not used for IP addresses within the range of those that can be assigned to the 53220A 53230A 38 53220A 53230A User s Guide Agilent Technologies Welcome to your 53220A 53230A Software Installation and Interface Configuration 53230A 350MHz 20ps Universal Frequency Counter Timer Web Enabled 53230A Information about this Web Enabled 53230A Instrume Serial Number DNS Hostname NetBIOS Name mDNS Hostname IP Address VISA TCPIP Connect String 53230A Uuso0000050 Agilent 53230A Universal Frequency Counter US00000050 A 53230A 00050 WindowsCE A 53230A 00050 local 169 254 2 30 TCPIP WindowsCE local inst0 INSTR Turn On Front Panel Identification Indicator EN Advanced information about this Web Enabled 53230A Firmware Revision Ethernet MAC Address Auto MDIX Capable SCPI TCPIP Socket Port SCPI Telnet Port SICL Interface Name VISA USB Connect String GPIB Address 00 189 1033 4546 1 18 3 47 99 120
90. BO delete printed manuals is the default product documentation option If Option 0BO was ordered only the Quick Start Tutorial and 53210A 53220A 53230A Product Reference CD ROM are shipped with the instrument All manuals are available on the CD To obtain printed manuals from Keysight contact your Keysight representative The 53220A and 53230A Except where noted the information contained in this user s guide applies to both the 53220A and 53230A Operating and Storage Environments When operating the 53220A 53230A counter note the following environmental specifications Environment EN61010 Pollution Degree 2 Indoor Locations Temperature 0 C to 55 C Humidity 5 to 80 RH non condensing Altitude up to 3000 meters or 10 000 feet When storing the 53220A 53230A counter note the following storage specification Temperature 30 C to 70 C Use care when moving the counter from cold to warm conditions as condensation may develop Ensure that any condensation has evaporated and that the counter has thermally stabilized before turning on the instrument 53220A 53230A User s Guide 17 1 Preparation for Use Electrical Requirements The electrical power requirements of the 53220A 53230A are summarized below Power Supply CAT do not connect to AC mains 100 to 240V 50 60 Hz 5 to 10 100 to 120V 400 Hz 10 Power Consumption 90 VA max when power is on or batte
91. D The counter received a command before it was finished responding to a previous query The computer attempts to read a query response 420 Query UNTERMINATED from the counter after having issued an incom plete query command 430 Query DEADLOCKED The counter s input and output buffers are full and the instrument cannot continue ne Query UNTERMINATED after A query command was fee Ned in the same indefinite response string after a query e g IDN requesting an indefinite length response Instrument Errors 100 Network Error A LAN network error has occurred or there is a possible hardware failure Run the instrument 110 LXI mDNS Error self test to determine if a hardware failure exists If so contact Keysight 53220A 53230A User s Guide 281 A 282 53220A 53230A Error Messages Not able to execute while A command was received while a measurement 263 instrument is measuring is in progress 291 Not able to recall state itis The state storage location 0 4 specified by the empty RCL command is empty 292 State file size error Attempted to load a sta state file that is too large 293 State file corrupt The sta state file specified does not contain vaild instrument state information 294 Pr f rence file size error Attempted to load a prf preference file that is too large 295 Preference file corrupt The prf preference file specified does not con tain
92. Deviation 206 average peak to peak value 205 average value 205 clearing values 207 enabling 203 example 205 206 maximum value 204 mean 204 minimum value 204 reading count 204 standard deviation 204 207 stop gate configuration example 189 stop gate holdoff 183 stop gate source 185 storage and operating environments 17 storing instrument states 256 synchronization with other instruments 172 syntax conventions SCPI 73 system auto level range 134 135 system trigger 148 count 152 delay 151 sample count 153 slope 150 source 149 T threshold reading memory 246 threshold level 129 absolute 130 auto level 131 example 132 pulse measurements 136 relative 131 with DC and AC coupling 133 threshold slope 139 time and date setting 28 294 time base 29 time interval errors due to hysteresis 138 external gate signal polarity 171 time interval measurements 89 duty cycle 99 gating 170 phase 102 pulse width 96 rise and fall time 93 single channel 92 single period 104 time out measurement 29 72 time stamp measurements 86 timeout increasing using Interactive IO 56 totalizing continuous 169 continuous measurements 109 external gate signal polarity 166 external gate signal threshold 167 gating 165 setting the gate time 165 timed measurements 106 transients 18 trend charts reading decimation 229 trigger cycle 145 triggering idle state 148 sample count 153 settings summary 144 system trigger 148 s
93. EQuency BURSt GATE NARRow OFF ON SENSe FREQuency BURSt GATE NARRow query form ON enables narrow pulse mode for on durations less than 10 us Automatic gate set up SENSe FREQuency BURSt GATE AUTO ON is always used when narrow mode is enabled OFF disables narrow pulse mode For on durations greater than 20 us narrow pulse mode must be disabled Following a reset RST or instrument preset SYSTem PRESet or Preset key nar row pulse mode is disabled Carrier Frequency Gate Control Narrow loff On dB Level l 6 12 l Gate Auto e Off On 2 Time nm o 2 174 53220A 53230A User s Guide Triggering and Gating 5 Gate control for measuring the carrier frequency can occur automatically during the measurement or be controlled manually as shown in Figure 5 7 from Triggered State SENSe FREQuency BURSt GATE NARRow 53230A Opt 150 Narrow Pulse Mode SENSe FREQuency BURSt GATE AUTO Gate Control OFF Automatic Gate Control Manual Gate Control SENSe FREQuency BURSt GATE TIME Burst Gate Time SENSe FREQuency BURSt GATE DELay Burst Gate Delay i Figure 5 7 Carrier Frequency Measurement Gate Control The method of gate control is set with the command SENSe FREQuency BURSt GATE AUTO OFF ON SENSe FREQuency BURSt GATE AUTO query form when ON the gate time and delay are automatically configured based on the character is
94. Errors Shorting the calibration secure jumper CAL ENABLE when turning ON the instrument will 701 Calibration error cause this error to occur indicating the security security defeated password has been overwritten See Resetting the Security Code to a Null in the service guide for details A calibration cannot be performed when calibra tion memory is secured See To Unlock The Counter For Calibration and To Lock the Coun 702 Calibration error tert in Chanter 2 oith ide f calibration memory is secured Pier A SUN Sel ice JUICE ter mete information Use the CAL SEC STAT ON com mand to enter the security code using the remote interface Calibration error 703 secure code provided was The security code specified was invalid invalid 704 Calibration error The security code specified is greater than 12 secure code too long characters 705 Calibration error An in progress calibration was aborted stopped calibration aborted by the user 706 Calibration error A calibration value was entered that was outside provided value out of range the expected range of valid inputs If this error occurs cycle power and run the instru Calibration error ment self test Verify the calibration setup instru 707 computed correction factor ment settings connections and recalibrate the out of range counter Contact Keysight if there is a self test fail ure or the unit fails to calibrate 53220A 53230A User s Guide
95. Figure 1 1 includes product Option 201 parallel rear panel inputs and GPIB interface The rear panel terminals are briefly described below A Parallel Rear Panel Inputs product Options 201 and 202 add parallel inputs on the rear panel Note that these ARE NOT separate inputs Signals on the center conductor of either panel s channel BNCs are ALSO present on the opposite panel s center conductor Signal path configuration is covered in Chapter 4 B Ext Ref In is the connector for providing an external reference oscillator signal Valid external refererence oscillator time base frequencies are 1 5 and 10 MHz Int Ref Out is the connector for accessing the counter s internal 10 MHz reference oscillator The oscillator signal is a 0 5 Vrms into 50Q sine wave Reference oscillator usage and configuration are covered in Chapter 3 C Gate In Out is an input for external gate signals and an output for routing the counter s internal gate to other devices Additional information on this connector is covered in the section Enabling Gate Signals on the Gate in Out BNC in Chapter 5 Trig In is the connector for supplying an external trigger signal to the counter Triggering is covered in Chapter 5 D USB and LAN are the standard input output I O ports Configuration of these ports and the GPIB interface is covered in Chapter 2 The layout of the 53220A 53230A display is shown in Figure 1 2 53220A 53230A U
96. Gating The specific command which sets the gate stop source is SENSe GATE STOP SOURce IMMediate EXTernal SENSe GATE STOP SOURCe query form gate source IMMediate stops closes the measurement gate immediately following any gate stop hold off gate source EXTernal sets the gate stop source to be specified by the command SENSe GATE EXTernal SOURce EXTernal INPut 1 INPut2 SENSe GATE EXTernal SOURce query form gate source EXTernal is the counter s rear panel Gate In Out BNC gate source INPut 1 and INPut2 not available with time interval measurements are the counter s channel 1 and channel 2 inputs front or rear panel Opt 201 OUTput STATe OFF must be set when using gate source EXTernal See Enabling Gate Signals on the Gate In Out BNC for more information and for information on using gate signals to synchronize other instruments CONFigure and MEASure do not change the gate stop source setting Following a reset RST or instrument preset SYSTem PRESet or Preset key gate stop source EXTernal is selected External Gate Stop Signal Polarity Gate Sre Gate Out Off On Stop Src Slope J Ext BNC l j Pos Neg Holdoff Sree Clea 4 Time Time When using the external gate sources listed above the polarity of the stop gate signal is 4 53220A 53230A User s Guide Triggering and Gating 5 set changed with
97. INPut PROTection CLEar command or by changing the input impedance to 1 MQ The bit in the Event register is cleared by reading the register See Chapter 8 Sta tus Conditions for more information Input Range Coupling Impedance Range Level BW Limit Probe _ 2 Gas Channel Setup AC DC iM 500 BV SOV l Setup Off 100k None 10 1 53220A 53230A User s Guide 123 4 124 53220A 53230A Input Signal Conditioning The signal operating ranges input ranges of the 53220A 53230A counter are 5 0V 50V and 500V and are dependent on the probe factor The range is set using the com mand INPut 1 2 RANGe lt range gt MINimum MAXimum DEFault INPut 1 2 RANGe MINimum MAXimum DEFault query form When a 1 1 probe factor is selected see Setting the Probe Factor the available ranges are 5 0V and 50 0V When a 10 1 probe factor is selected the available ranges are 50 0V and 500 0V CONFigure and MEASure do not change the input range setting Following a reset RST or a front panel preset Preset the range is set to 5 0V Using Auto Scale For input signals greater than 100 Hz Auto Scale detects the signal on the input channel and sets the range to 5V or 50V depending on the amplitude Auto Scale is not the same as an instrument preset which sets a default range of SV Range Example Auto maximum resc Scale J use channel 1 CONF PER 0 1E 0 m aa 1
98. IO Libraries installation 41 system requirements 42 Allan Deviation 206 example 207 applying power 18 ascii data formats 238 ASCII format reading length 240 auto level 29 auto level 131 frequency range 134 system auto level 134 auto level frequency example 135 automatic gate extension 189 automatic range setting 218 B bandwidth limiting 127 noise rejection 138 battery level 21 battery operation 20 battery in use 21 enabling and disabling the battery 21 reading the battery level 21 beeper 27 block data transfers 239 byte order 239 boxcar filter 194 burst gate configuration example 176 burst measurements 173 burst pulse measurements 111 carrier frequency 112 positive and negative width 116 prf and pri 113 C CALCulatel subsystem 193 calibration security disabling for firmware updates 56 carrier frequency measurements 112 cataloging folders 265 changing counter settings after CONFigure 78 changing the GPIB address 50 54 channel 3 signal strength 140 channel characteristics 120 channel options 120 checking lower limits 209 checking upper limits 209 clearing histogram data 220 227 clearing limit conditions 210 clearing statistical values 207 computer configuration 48 CONFigure and MEASure commands 75 CONFigure commands 78 CONFigure 78 Connection Expert adding instruments to USB configuration 49 continuous totalizing 169 reading the current count 169 copying files 264 copying files from the front panel 2
99. Keysight 53220A 53230A 350 MHz Universal Frequency Counter Timer KEYSIGHT User s Guide TECHNOLOGIES NOTICE This document contains references to Agilent Technologies Agilent s former Test and Measurement business has become Keysight Technologies For more information go to www keysight com KEYSIGHT TECHNOLOGIES Notices Keysight Technologies 2011 2014 No part of this manual may be reproduced in any form or by any means including electronic storage and retrieval or translation into a for eign language without prior agreement and written consent from Keysight Technologies as governed by United States and international copyright laws Manual Part Number 53220 90001 Edition Edition 3 August 2014 Printed in Malaysia Keysight Technologies 1400 Fountaingrove Parkway Santa Rosa CA 95403 Product manuals are provided with your instrument on CD ROM and or in printed form Printed manuals are an option Manuals are also available on the web on the instrument s product page Software Updates Licenses Periodically Keysight releases software updates to fix known defects and incorporate product enhancements To search for software updates and the latest documentation for your product go to the product page at www keysight com find 53220A www keysight com find 53230A A portion of the software in this product is licensed under terms of the General Public License Version 2 GPLv
100. MHz StdDey 75 883 043 655kuz Min 24 619 924 297MHz Count 1941 Pk to Pk 379 999 278 69kHz All Math Smoothing Null Statistics Limits Off On 4 4 Scale 4 Statistics Show Off On P P Allan CALCulate1 AVERage CLEar Figure 6 3 Counter Display with Limit Testing and Statistics Enabled Enabling Statistics Before statistical calculations are performed they must be enabled using the command CALCulate 1 AVERage STATe OFF ON CALCulate 1 AVERage STATe query form 53220A 53230A User s Guide 203 6 53220A 53230A Math Graphing and Data Logging ON enables statistical calculations on the readings as they occur Statistical data includes mean standard deviation Allan deviation maximum value minimum value and average peak to peak value OFF disables statistics computation Following a reset RST or instrument preset SYSTem PRESet statistical compu tations are disabled Reading Count Statistical calculations start when Math and the Statistics function are enabled The num ber of readings on which a given set of statistics are based is shown as the Count value Figure 6 3 The count can also be queried with the command CALCulate 1 AVERage COUNt CURRent The count can be read at any time after the measurements have been initiated i e INI Tiate IMMediate READ MEASure Following a reset RST or instrument preset SYSTem PRESet the coun
101. Markers Histogra CALCulate2 TRANsform HISTogram POINts 19 AUGE AutoRange Number of Outer Bins Bins Off On G Rags Off On CALCulate2 TRANsform HISTogram RANGe AUTO CALCulate2 TRANsform HISTogram RANGe AUTO COUNt 49 999 828 806 622 55 Hz Number of AutoRange e Bim Set to Outer Bins Bins Off On Min Z Max Off On Marker2 LockMrkrs Zoom CALCulate2 TRANsform HISTogram RANGe LOWer ai Count CALCulate2 TRANsform HISTogram COUNt Histogram Options Show Save Zoom amp lt CALCulate2 TRANsform HISTogram CLEar ara le CALCulate2 TRANsform HISTogram RANGe UPPer Figure 6 7 15 Bin Point Histogram Histogram computation is enabled with the command CALCulate2 TRANsform HISTogram STATe OFF ON CALCulate2 TRANsform HISTogram STATe ON enables histogram computation query form OFF disables histogram computation Following a reset RST instrument preset SYSTem PRESet or front panel Preset histograms are disabled 214 53220A 53230A User s Guide 53220A 53230A Math Graphing and Data Logging 6 The number of readings represented by a histogram Figure 6 7 can be queried with the command CALCulate2 TRANsform HISTogram COUNt Setting Up the Histogram The counter builds a histogram based on number of bins points a lower range and an upper range Number of Bins View Digits Trend Histogram Chart an E Hist
102. Max Qut of range values are displayed Rdgs lt LR Bin togram Options Show Save Zoom amp Rdgs gt UR Bin out of range Off On 1 Count Read Markers out of range Mkr 1 maximum value within bin at marker location Mkr 2 maximum value within bin at marker location Span difference in maximum values between 3 locations Bin Marker location and reading count 49 999 833 895k Bin 2 1094 Frequency within bin or percent of total reading 49 999 845 586k Bin 10 3685 Channel 1 count if Show 11 691 740 779m Span 9 31819 Count 50000 Span number of bins between and including marker locations percentage or number of readings within the span Hz Bin indices Out of range values are displayed 40 position window for marker zoom and pan adjustment the decimal k i Markerz GH on E Zoom position i e 1000 s 100 s 10 s 1 s highlighted by the arrow keys sets the amount of movement coarse fine for each tick of the rotary knob Figure 6 6 Histogram Display Format Histogram Configuration Histograms are configured using the softkeys and commands shown in Figure 6 7 53220A 53230A User s Guide 213 6 53220A 53230A Math Graphing and Data Logging CALCulate2 TRANsform HISTogram STATe ON X Max 49 999 852 894k Frequency X Min 49 999 830 972k Channel 1 Bin Size 1 461 467 597 Om Count 50000 7042 Max Out of range mae are displayed Off On Count Readings
103. NABle OFF ON SYSTem BATTery ENABle query form ON enables the battery O disables the battery The battery state is stored in non volatile memory and does not change when power is cycled or following a reset RST or instrument preset SYSTem PREset or Preset key The battery should remain enabled while the counter is using AC power The battery should only be disabled if the instrument is stored and unused for an extended period This will minimize battery drain Reading the Battery Level Pressing the Battery Level soft key or sending the command SYSTem BATTery LEVel1 reads the battery charge in percent relative to a fully charged 100 battery Battery in Use The presence and status enabled or disabled of the battery is indicated by a battery icon in the upper right corner of the display Figure 1 2 Remotely the instrument can be queried as to whether it is currently using AC power or battery power with the command SYSTem BATTery STATUS The command returns AC if the instrument is using line power or BATT if using the internal battery 53220A 53230A User s Guide 21 1 22 Preparation for Use The following table summarizes battery operation Operating Time typ 3 hours below 35 C Standby Time typ 24 hours below 35 C OCXO powered Recharge Time typ 4 hours to 100 capacity or 2 hours to 90 capacity Temperature Range 0 C to 55 C operating battery charg
104. OUN 1 set trigger count SAMP COUN 10 take 10 readings READ read readings when complete FETCh is used following INITiate IMMediate After all measurements specified by TRIGger COUNt and SAMPle COUNt are complete FETCh trans fers the readings from reading memory to the output buffer Since reading memory is not erased by this action readings can be fetched from memory multiple times If 53220A 53230A User s Guide Formats and Data Flow 7 there are no readings available or measurements in progress when a fetch is per formed err 230 Data corrupt or stale is generated If the data format is REAL FORMat subsystem each block of readings fetched by FETCh is preceded by an IEEE 488 2 Indefinite Length Block header Table 7 1 When sending multiple commands in a single command string FETCh should always be the last command in the string FETCh Example frequency meas of 500 kHz signal with uHz resolution CONF FREQ 500E3 1E 6 1 configure counter TRIG COUN 1 set trigger count SAMP COUN 10 take 10 readings INIT IMM initiate counter to start rdgs FETC fetch rdgs from memory when complete R lt max_count gt is used following INITiate IMMediate Transfers all or up to the specified max_count number of readings to the output buffer and erases those readings beginning with the oldest in reading memory Unlike FETCh R can be used to transfer readings
105. On 90 53220A 53230A User s Guide 53220A 53230A Measurements 3 A time interval measurement is the difference between two events or edges on different waveforms or on the same waveform A typical two channel time interval measurement is shown in Figure 3 6 time interval I two channel Figure 3 6 2 Channel Time Interval Measurement The commands used to make time interval measurements are MEASure TINTerval lt channel_pair gt CONFigure TINTerval lt channel s gt channel_pair are channels in the form 1 2 2 1 channel s can be a channel pair or single channel in the form 1 2 2 1 1 2 The input channel s are default configured for auto leveling at 50 with a positive slope When configuring time interval measurements consider the start or stop input thresh olds input slope or gate stop hold off settings 53220A 53230A User s Guide 91 3 92 53220A 53230A Measurements INPut 1 2 LEVel 1 2 or INPut 1 2 LEVel 1 2 RELative INPut 1 2 SLOPe 1 2 SENSe GATE STOP HOLDof f SOURCe Measurements taken without changing at least one of these settings could result in val ues of approximately 0 seconds as the measurement starts and stops on the same edge slope at approximately the same time 2 Channel Time Interval Measurement Example use CONFigure to set up a 2 channel time interval measurement start on ch 1 stop on ch 2 RST rese
106. Out gate signals are routed to the rear panel BNC OFF disables Gate Out the BNC is an external Gate In source Therefore OUTPut STATe OFF must be set when the gate source is EXTernal NORMa1 the polarity of the gate signal output from the Gate Out BNC is a rising positive edge INVerted the gate signal polarity is a falling negative edge Burst Carrier Frequency Measurements The 53230A counter with channel 3 Option 106 or 115 6 GHz or 15 GHz microwave input and Pulse Microwave Measurement Option 150 enables measurement of the burst carrier frequency A representation of the carrier frequency is shown in Figure 5 6 53220A 53230A User s Guide Triggering and Gating 5 6dB p p amplitude burst carrier frequency Figure 5 6 Burst Carrier Frequency 6 dB threshold See Burst Measurement Detector Threshold in Chapter 4 for more informa tion on burst pulse characteristics 53220A 53230A User s Guide 173 5 Triggering and Gating Setting Narrow Pulse Mode Measure Auto h _ Scale p Freq r Time Pulse 7 Advanced lt Freq Ratio Period Stamp Burst Auto Ee tote i Pulse Pulse I Burst Burst PRF PRI Freq I Width x Burst dB Level i Narrow Gate Auto Freq F6 12 Off Ony Off On For carrier frequency measurements with on durations Figure 5 6 less than 10 us narrow pulse mode must be set using the command SENSe FR
107. SENSe GATE EXTernal SOURce External Gate Source EXTernal INPut 1 INPut2 SENSe GATE STOP SLOPe Gate Slope IMMediate holdoff disabled IMMediate Gate Stop closed for all EXTernal Sources Gate In Out BNC Disable OUTPut STATe OFF Triggering and Gating 5 to SAMPle COUNt reached Gate Start open SENSe FREQuency GATE TIME SENSe TOTalize GATE TIME SENSe TINTerval GATE SOURce IMMediate Gate Stop closed k a E S o S E 2 5 n D amp Gate Start open SENSe FREQuency GATE POLarity SENSe TOTalize GATE POLarity SENSe TINTerval GATE POLarity INPutt 4 2 LEVel 1 2 ABSolute Gate Stop closed measurement completes on next edge of input signal after gate is closed Gate stop source does not apply to rise fall time duty cycle pulse width phase and single period measurements auto gate extension frequency and period measurements Figure 5 2 cont d Trigger and Gate Cycle Gating 53220A 53230A User s Guide 147 5 Triggering and Gating System Trigger The counter operates in one of three states depending on the status of the system trigger idle wait for trigger and triggered Idle State Counter configuration generally occurs while the instrument is in the idle state Figure 5 3 This includes configuration of the system trigger As shown the counter is placed in the idle state by either of the following the com mands ABORt
108. Setting Low Level Command Subsystem 53220A 53230A User s Guide 77 53220A 53230A Measurements GATE Source Based on measurement function specified by the CONFigure or MEASure command SENSe FREQuency GATE SOURce SENSe TINTerval GATE SOURce SENSe TOTalize GATE SOURce GATE Start Source IMMediate SENSe GATE STARt SOURce GATE Start Slope NEGative SENSe GATE STARt SLOPe GATE Start Delay TIME SENSe GATE STARt DELay SOURce 0 0 seconds SENSe GATE STARt DELay TIME GATE Stop Source IMMediate SENSe GATE STOP SOURce GATE Stop Holdoff TIME SENSe GATE STOP HOLDoff SOURce 0 seeends SENSe GATE STOP HOLDoff TIME GATE Stop Slope NEGative SENSe GATE STOP SLOPe External Gate Source Gate In Out BNC OUTPut STATe Burst Gate Auto On enabled SENSe FREQuency BURSt GATE AUTO Burst Gate Delay 0 0 seconds SENSe FREQuency BURSt GATE DELay Burst Gate Time 1 0 us SENSe FREQuency BURSt GATE TIME Narrow Pulse Mode Off disabled SENSe FREQuency BURSt GATE NARRow Math Disabled including the individual calculate CALCulate1 subsystem Graphics functions Other parameters are unchanged CALCulate2 subsystem Auto level Frequency Unchanged SYSTem ALEVel FREQuency Measurement Timeout Unchanged SYSTem T Meout Reference oscillator Unchanged from previous settings SENSe ROSCillator SOURce SENSe ROSCillator SOURce AUTO SENSe ROSCillator EXTernal FREQuency Reading Format Data Storage
109. Shift ed numeric keys See Resolution and Gate Time in Chapter 5 for more information when AutoDigits On is set When Graph is selected the data is displayed in a trend chart or histogram Trend charts and histograms are covered in Chapter 6 Numeric Format The format radix decimal group separator of numeric data that appears in the main measurement display Figure 1 2 is set using the following keys 24 System i ee Store 1 0 Cal Instr System Battery lt Utility 4 Recall Config AutoCal g Setup i etup Option r super qi Date Manage Settings f Time 1 Files NISPOM Help ral 7 Beeper i Display SCPI Lang English Format l ott On Options 1532304 SS Decimal Py m I4 Space None Space On 53220A 53230A User s Guide Preparation for Use 1 The format also applies to numeric readings within trend charts histograms limit testing etc Radix The decimal separator radix point between the integer and fractional parts of the reading can be a decimal point or comma Digit Group Separator A digit group separator between every three digits on either side of the decimal separator radix allows easier viewing of the displayed reading The separator can be one of the following None there is no space between digits e g 10 967342515 MHz Space a space is inserted between every three digits e g 10 967 342 515 MHz On a comm
110. Single Phase Period 5 Width Auto Level ESR NoiseRej Pos Neg Off On Off On An example of positive and negative pulse widths are shown in Figure 3 9 lt frequency gt Figure 3 9 Positive and Negative Pulse Width Measurements The commands used to make positive and negative pulse width measurements are MEASure PWIDth lt reference gt MINimum MAXimum DEFault lt channel gt CONFigure PWIDth lt reference gt MINimum MAXimum DEFault lt channel gt MEASure NWIDth lt reference gt MINimum MAXimum DEFault 53220A 53230A User s Guide 97 3 98 53220A 53230A Measurements lt channel gt CONFigure NWIDth lt reference gt MINimum MAXimum DEFault lt channel gt reference specifies the threshold level where the width measurement begins For positive width measurements the level at which the signal passes through the threshold in the positive rising direction and again in the negative falling direction defines the positive width Similarly the level at which the signal passes through the threshold in the negative falling direction and again in the positive rising direction defines the negative width To specify a threshold level from 10 to 90 of the peak to peak input voltage use a numeric value with no suffix or with the suffix PCT e g 30 or 30 PCT To specify a threshold level in absolute voltage within the ranges 5 125V rang
111. Smart Battery SUAT Once the IP address is known start the Connection Expert utility by clicking the Keysight IO Control icon and selecting Keysight Connection Expert from the pop up menu as shown in Figure 2 3 53220A 53230A User s Guide 45 2 53220A 53230A Software Installation and Interface Configuration k OHF gt 2 57 m Agilent Connection Expert Clicking the icon opens Utilities the pop up menu Agilent VISA Options Documentation Exit Agilent IO Control About Agilent IO Control Figure 2 3 Starting Keysight Connection Expert Locating the Instruments Keysight Connection Expert opens with a welcome screen and window similar to that shown in Figure 2 4 The computer interfaces configured during installation are dis played in the left column Explorer pane the properties of the configured interface are displayed in the right column Properties pane To search the network for the counter highlight the LAN interface LAN TCPIP0 and select Add Instrument located on the Connection Expert tool bar After selecting Add Instrument Connection Expert performs an automatic find Auto Find of all instru ments on the same subnet as the computer Select the counter from the list and then click OK Communication paths to the instru ments are verified and the instruments are added to the configured interface Instruments added to the LAN in this manner are subsequently programmed using
112. Tered and the signal on channel 2 is delayed for a period equivalent to 90 the measurement will be 90 for the channel pair 1 2 If under the same signal conditions the channel pair were specified as 2 1 the measurement would be 90 degrees Single Period Time Interval Width Fall Cycle Pulse Duty Rise Phase single TED x _ Single Auto Level HESE NoiseRej Period Off On Off On A form of time interval measurement the single period measurement is based on a sin gle waveform cycle Single period measurements provide measurement of single shot or one cycle events and allow analysis of signal characteristics e g jitter that would otherwise be averaged out with standard averaging period measurements The commands used to make single period measurements are MEASure SPERiod lt channel gt 53220A 53230A User s Guide 105 3 106 53220A 53230A Measurements CONFigure SPERiod lt channel gt channel is counter channel 1 or 2 specified as 1 or 2 Single Period Measurement Examples using MEASure make a single period measurement on channel 1 RST reset to start from known state MEAS SPER 1 using CONFigure make a single period measurement on channel 1 start measurement when signal reaches 1 5V threshold RST reset to start from known state CONF SPER 1 INP LEV 1 5 set 1 5
113. The default time out is 321 O see 1s The time out is set from the front panel under occurred l l 2 ont pangu Utility gt Instr Setup or using the SYSTem TIMEout command 322 Measurement overflow A totalizing count continuous or gated exceeded occurred the upper range of 1015 events 514 Not allowed Instrument A lock SYSTem LOCK REQuest was locked by another I O session requested from another I O interface 53220A 53230A User s Guide A 283 A 284 53220A 53230A Error Messages Cannot use overload as math An overload value 9 91E 37 cannot be used as 540 reference a reference for the NULL PCT PPM and PPB scaling functions Cannot use zero as math ref 541 erence for PCT PPM or PPB A zero 0 value cannot be used as a reference scaling functions for the PCT PPM and PPB scaling functions An external time base frequency other than 1 5 or 10 MHZ is applied to the counter or the exter 580 No valid external timebase nal time base frequency is incorrectly specified by the SENse ROSCillator EXTernal FREQuency conmmand An error occurred during installation of the Option 600 Internal licensing error 150 Pulse Microwave Measurements license The license was not installed Contact Keysight The lic file specified for installation contains cor 601 License file corrupt or empty rupted data or is empty Recopy the Option 150 license file to the USB driv
114. V threshold level READ Notes 1 For period averaging measurements rather than single period measurements use the MEASure PERiod or CONFigure PERiod commands 2 Setting an absolute threshold level disables the counter s auto level function CON Figure and MEASure enable auto leveling at 50 OV 3 See Chapter 4 for information on input signal conditioning including threshold level and sensitivity 53220A 53230A User s Guide 3220A 53230A Measurements 3 Totalizing Measurements The 53220A 53230A measurements covered in this section include gated and continu ous totalizing measurements The SCPI commands listed in these examples are provided as an introduction to how totalizing measurements are made Commands may be included even though they specify default values but which should be considered when mod ifying the examples for actual use Refer to the Programmer s Reference on the Keysight 53210A 53220A 53230A Product Reference CD for additonal information Gated Gated Continuous l 5 Gated Auto Level METAKA NoiseRej Continuous Off On Off On Gated timed totalizing measurements count events edges that occur on the channel over a specified period The relationship of the gate to the period input events are totalized is shown in Figure 3 12 53220A 53230A User s Guide 107 3 108 53220A 53230A Measurements Gate open Gate closed gate gate time E
115. a or decimal point is inserted between every three digits depending on the decimal separator radix selected decimal point radix 10 967 342 515 MHz comma radix 10 967 342 515 MHz Screen Control Screen control is available through the keys shown below The display screen can be turned off to increase reading throughput and its screen saver mode can be used to conserve power Screen brightness can be adjusted for optimal viewing in different environments 53220A 53230A User s Guide 25 1 Preparation for Use System Preset 0 ae ae eee Store 1 0 Cal Instr System Battery s y g p Recall Config J AutoCal 4 Setup 4 etup Option jah L Help User Date Manage Settings Time Files NISPOM l Se ee l Help Lang Number Beeper Display CPI Lang J English p Format Off On Options 53230A ail Display IAEA Sern Svr Off On Off On Note that pressing any key with the display turned off turns the display back on Screen Capture For documentation of product testing or as a convenience in gathering data the contents of the counter display can be captured and saved The keys related to this feature are shown below System De eee ee oc Store A e 1 0 Cal Instr System Battery Recall Config AutoCal Setup etup Option 4 4 4 4 4 ee Help I g Poe Aiea Poe a a ae
116. aking continuous gap free frequency or period measurements Only one trigger is accepted when using these functions See the Programmer s Reference section of the Keysight 53210A 53220A 53230A Product Reference CD for more information Wait For Trigger and Triggered States In order for the counter to accept triggers which start the trigger and gate cycle the counter must be initiated Initiating the counter places the instrument in the wait for trigger state Figure 5 4 INITiate IMMediate READ Wait for trigger state MEASure triggers received TRIGger COUNt trigger received Triggered state readings AMPle COUNt to gate cycle repeated for each reading in sample count from gate cycle Figure 5 4 The Counter Wait for trigger State The counter can be initiated using the following commands 154 53220A 53230A User s Guide Triggering and Gating 5 INITiate IMMediate places the counter in the wait for trigger state In this state trigger signals are recog nized and accepted Readings taken after the counter is initiated by INITi ate IMMediate are displayed and stored in the counter s reading memory see Chapter 7 Formats and Data Flow for more information Initiating Example configure for frequency set system trigger parameters CONF FREQ 5E6 0 1 2 TRIG SOUR EXT trigger source external TRIG SLOP POS external trigger slope positive
117. and from a state file in internal flash memory 53220A 53230A User s Guide Formats and Data Flow 7 configure counter SAV 2 save state in location 2 MEM STAT REC AUTO ON enable state recall at power on MEM STAT REC SEL 2 recall state in loc 2 at power on when power is cycled state in location 2 is recalled and MMEM MDIR INT SETUP_A create folder in INT memory configure counter store state in file MMEM STOR STAT INT SETUP_A test_A sta MEM STAT REC AUTO ON enable state recall at power on MEM STAT REC SEL test_A sta recall file at power on when power is cycled state test_A sta is recalled When shipped from the factory automatic state recall is disabled MEM STAT REC AUTO OFF With state recall disabled factory defaults RST are set at power on 53220A 53230A User s Guide 259 7 Formats and Data Flow Specifying Power On States from the Front Panel System Preset Store 7 170 Cal Instr System Battery h necat Config jAutoCal 4 Setup n Setup Option 7 Help g 10 Q Store Recall Delete I Power On Set to State State State Factory Defaults Md Last User Def Factory User defined power on state file Internals Recall Delete Power On User Def Set to State State User De File Defaults Store 4 State A specific power on s
118. arker positions is shown above the his togram window Zoom determines the number of bins displayed by increasing the resolution at the center region of the histogram Each time the zoom is adjusted the X Min and X Max indices Figure 6 6 are changed to show the current bin range Pan scans the histogram left or right once a zoom percentage has been set By moving the Pan window regions of interest can be brought into view and Zoom used again to expand the region Pan used interchangeably with Zoom in this manner maintains the zoom percentage Show All restores the histogram window to the total number of bins specified includ ing the outer bins and resets the zoom and pan Histogram Data in Numeric Form Data describing the histogram is available in numeric form through either of two query commands CALCulate2 TRANSform HISTogram ALL Returns the following comma separated sequence describing the current histogram lower range value 53220A 53230A User s Guide 53220A 53230A Math Graphing and DataLogging 6 upper range value number of readings taken bin data The bin data includes number of measurements less than the lower range value number of readings in each bin number of readings greater than the upper range value An example data string for a 15 bin histogram based on 3 000 readings of a 50 kHz input signal is 4 998912590059145E 004 5 001118414176608E 004 3000 0 4 8 4 27 71 221 422
119. as encountered at an 168 Block data not allowed instance where it is not allowed by the instrument An error was encountered in a parameter expres 170 Expression error sion but more specific information is not avail able 171 Invalid expression The expression used to calculate a parameter value is invalid 178 Expression data not allowed An expression was encountered at an instance where it is not allowed by the instrument Execution Errors A password protected command or query could 203 Command Protected not be executed because the command was dis abled 213 INIT ignored INITiate IMMediate was received while the coun ter is currently initiated The statement appended to the Settings conflict 221 Settings conflict message describes the conflict and how it was resolved 222 Data out of range The parameter value received was outside the range for the given command The block element or string parameter received 223 Too much data is valid but memory limitations prevent command execution 224 Illegal Parameter Value An exact value from a list of choices was expected Internal buffers are full as data is taken at a faster 225 Out of memory ith b TD RD 3 measurement data overrun ate than can be processed Decreasing the read ing rate gate time can prevent this error 230 Data corrupt or stale Attempting to retrieve data following a reset or change to the counter configura
120. ast message displayed 2 View remote command error queue 3 Get HELP on any key 4 Softkey Conventions and Tips 5 Screen Captures 6 Multiple Frequency Measurements 7 Single Channel Time Interval Measurement System 8 Gated Totalizing 9 Enabling Math Functions 10 Where To Find It 11 Contact Agilent Technical Support 0 Utility u y Select P Help o Shift 6 The status of the external reference time base is also monitored by the counter s Ques tionable Data register The register can be queried with the command STATus QUEStionable EVENt A value of 1024 bit 10 indicates an invalid frequency time base error Reading the 53220A 53230A User s Guide 69 3 53220A 53230A Measurements register clears all bits in the register See Chapter 8 for information on the counter s sta tus system Standby Power to the Reference Oscillator Option 010 Self TimeBase haseMeas Time Out Auto Level Test Settings aut Settings re Slow TimeBase Standby Internal Off On Standby power to maintain the operating temperature of the counter s internal OCXO reference oscillator Option 010 is provided by the the line voltage or from Battery Option 300 Standby power is enabled and disabled using the command SENSe ROSCillator INTernal POWer STANdby OFF ON SENSe ROSCillator INTernal POWer STANdby query form On enables standby power which main
121. ata logging feature of the 53220A 53230A counter allows you to log and analyze up to 1 000 000 readings Data logging is enabled and configured from the front panel only and is available with all counter measurements except continuous totalizing Logged readings ARE NOT saved to internal flash memory or external USB memory until the logging duration is complete If power is lost and if battery Option 300 is not enabled or it also loses power before logging is complete all data will be lost Figure 6 11 shows the keys and and windows associated with the data logger applica 230 53220A 53230A User s Guide 53220A 53230A Math Graphing and Data Logging tion Data Logger Application File name Internal DataLog Start Delay 00 00 00 Duration 00 00 20 to start Time hh mm ss 0 00 00 Start owes Set View Delay Time Results Y Max 1 098 706 054 7kHz Frequency Y Min 900 225 830 08 Hz Channel 1 Span 198 480 224 61Hz Max Count 328 Select data log target file Path File Internal Watalog A 1 Reading Time to Stop 00 00 14 Stop Stop Save No Save File t Stamp Browse Name Off On Figure 6 11 Starting the Counter Data Logger 53220A 53230A User s Guide 231 6 6 232 53220A 53230A Math Graphing and Data Logging Configuring the Data Logger All logged readings are saved in the counter s internal flash memory or to an external USB storage device after logging is complete
122. cified number of events edges have occurred on the input channel For totalizing measurements or when specifying a hold off in terms of time the hold off begins when the gate opens For all other measurements or when specifying a hold off for a number of input events the hold off begins on the first event after the gate opens Figure 5 1 53220A 53230A User s Guide 183 5 184 Triggering and Gating Gate Stop Hold Off Source Gate Setup Gate Src Start Stop Gate Out Adv jy Menu 4 Menu I Off On Stop Src Holdoff Srei HoldOff L fimm Time as ea acl The gate stop holdoff source and its parameters are set with the commands SENSe GATE STOP HOLDoff SOURce IMMediate EVENts TIME SENSe GATE STOP HOLDOof f SOURcCe query form holdoff source IMMediate disables the hold off settings and no gate holdoff occurs The gate closes immediately after the gate stop parameters are satisfied CONF igure and MEASure do not change the hold off source setting Following a reset RST or instrument preset SYSTem PRESet or Preset key hold off source TMMediate is selected disabled hold off source EVENt s holds off the gate stop close until a specified number of events edges as configured by the INPut subsystem occur on the input channel For two channel time interval measurements hold off events are counted on the stop chan nel For frequency ratio measurements hold off
123. command header 109 Missing parameter Command requires a parameter or parameters An error was detected in the command header 110 Command header error MANG MEE F but more specific information is not available An invalid separator follows the command header 111 Header separator error f A A valid separator is usually a blank space F The command header contains more than 12 112 Program mnemonic too long characters 113 Undefined header The command header is syntactically correct but undefined for the instrument A numeric suffix included as part of the command 114 Header suffix out of range header is out of range e g 3 when only 1 or 2 is valid 120 Numere data orror A numeric data element was detected but more specific information is not available g A character other than a number comma or deci 121 Invalid character in number Pea A a mal point is embedded in the number specified 276 53220A 53230A User s Guide 53220A 53230A Error Messages The magnitude of the exponent is greater than 123 Exponent too large 32 000 ide The mantissa the positive fractional part of the 124 Too many digits number contains more than 255 digits A number was specified in the command header 128 Numeric data not allowed or in a parameter where numeric data is not allowed An error was detected in the suffix units of a 130 Suffix error numeric paramet
124. d by the Connection Expert utility Opening the Web Interface from Keysight Connection Expert The LAN interface is the only IO interface from which the counter s Web enabled user interface can be accessed To open the Web UI highlight the configured LAN instru ment Figure 2 4 and select Instrument Web Interface from the Connection Expert window Configuring the USB Interface The 53220A 53230A is a high speed USB 2 0 device Connection to the instrument is through the Type B USB connector located on the instrument rear panel The first time the 53220A 53230A is connected to the PC via the USB cable a hardware wizard utility within the PC may start and prompt you for installation software for the product There is no installation software for the USB interface other than the libraries on the Keysight Automation Ready CD that ships with the 53220A 53230A Continue through the wizard application without searching for software and using the default selections Adding Instruments to the USB Configuration With the 53220A 53230A and PC connected through the USB cable start Keysight Connection Expert Figure 2 4 if it is not already open The PC should detect the presence of the USB device If necessary right click the USB interface USBO and then select Refresh This Interface Connection Expert will attempt to establish a communication path to the instrument If successful the instrument will be added to the
125. e INT is referenced For example MMEM MDIR dut_2 creates the folder dut_2 on the root drive INT Following a reset RST or instrument preset SYSTem PRESet the counter resets the current folder to the root directory on the internal flash file system INT Creating Data Files See Histograms or Trend Charts and Data Logging in Chapter 6 for information on storing measurement data from the front panel The command used to transfer data from reading memory to a file in internal flash mem ory or on a USB device Figures 7 1 and 7 2 is 53220A 53230A User s Guide 251 7 Formats and Data Flow MMEMory STORe DATA RDG STORE lt file gt lt file gt is created during execution of the command and the file parameter format is Tdrive path lt file_ name gt drive is either INT internal flash memory or USB external memory device path is an absolute path and folder name If a folder is specified it must have been previously created The combination of folder and file name cannot exceed 240 characters and cannot con tain the characters lt gt The format of the transferred readings is specified by the ile_name extension If csv is specified the data is stored as comma separated values CSV in one measure ment per line ASCII format If dat is specified the data is stored as REAL values with little endian byte order The following se
126. e 5 125V to 5 125V 51 25V range 51 25V to 51 25V use a numeric value with the V or MV millivolt suffix 100 MV or 1V spaces allowed If reference is omitted or specified in percent auto leveling is enabled If specified in absolute voltage auto leveling is disabled channel is counter channel or 2 specified as 1 or 2 Positive and Negative Pulse Width Measurement Examples using MEASure measure positive width at a 50 0V reference RST reset to start from known state MEAS PWID 50 1 using CONFigure measure positive width at a 1 0V reference RST reset to start from known state 53220A 53230A User s Guide 53220A 53230A Measurements 3 CONF PWID 1 0V 1 INP COUP DC set DC coupling NP IMP 50 set input impedance to 50 ohm READ using CONFigure measure negative width at 500 mV reference RST reset to start from known state CONF NWID 500 MV 1 INP COUP DC set DC coupling INP IMP 50 set input impedance to 50 ohm READ Notes 1 The reference threshold can be specified as a percentage of the peak to peak ampli tude or as an absolute level in either the CONFigure or MEASure command 2 Absolute references are relative to the amplitude of the signal and must take into con sideration the counter s input coupling and impedance settings 3 See Chapter 4 for information on configurin
127. e Configuration 2 Downloading the Firmware Update Return to the Web page and under Documents amp Downloads select 532x0A Firmware Update Revision lt revision number gt When prompted select Run to download save the file to your PC Note the directory location as you will need to specify the path to the firmware file when you run the update utility Firmware updates are available from the LAN interface only Note the IP address before starting the utility Installing the Firmware Update After the update file is downloaded from the web site it can be installed 1 From the installation directory or start menu start the utility A window similar to that shown in Figure 2 9 should appear Agilent Technologies Firmware Update Utility Type 2 0 re Firmware Update Utility Type 2 Version 1 1 13808 Copyright Agilent Technologies Inc 2010 Next gt Cancel Help Figure 2 9 Firmware Update Utility File Selection Window 53220A 53230A User s Guide 59 2 60 53220A 53230A Software Installation and Interface Configuration 2 Press Next and using the Browse button specify the path to the firmware file Figure 2 10 Once specified the instrument model number will appear in the Applicable Models window along with the revision and instrument description Select Next Firmware Update Utility Firmware File Selection Select a file to download File Name C Firmware File Informa
128. e and MEASure automatically set the gate source to TIME and the gate time according to their optional expected value and resolution parameters Specifying these parameters or using default values with these commands simplifies counter pro gramming However setting changing the gate time separate from the CONFig ure MEASure command allows you to change only the gate time while preserving other configuration settings Querying the Gate Time The gate time set by the expected value and resolution parameters can be determined after execution of the CONFigure or MEASure command For example assume a measurement requiring 10 digit mHz resolution of a 5 MHz signal is required Because digits of resolution is approximately equal to Log expected value L0g 1 resolution this measurement could be configured as MEAS FREQ 5e6 5E 4 1 expected freq resolution A typical measurement using this configuration might return 4 99998458333282E 006 160 53220A 53230A User s Guide Triggering and Gating 5 With the counter display registering 4 999 984 583 3MHz 11 digits resolution enhanced Querying the gate time after sending this command returns SENS FREQ GATE TIME 1 00000000000000E 001 100 ms From Table 5 2 and assuming a 53230A counter and measurement mode Auto this cor responds to 11 digits of resolution To achieve a desired resolution digits in terms of gate time locate the number
129. e and repeat the instal lation process 602 No valid licenses found for The Option 150 lic license file could not be this instrument located among other lic files on the USB drive The lic license file could not be installed due to 603 Some licenses could not be an incompatible model number or serial number installed or no licenses found were applicable to the instru ment When initiated from the instrument front panel to 604 License not found install the Option 150 license no lic file was found Non volatile memory write The user preferences prf file is invalid and could 800 failure not be stored in internal flash memory or on the USB memory device The instrument state file specified by the 810 State has not been stored MMEMory LOAD STATe lt file gt con tains an invalid instrument state and cannot be loaded 53220A 53230A User s Guide 53220A 53230A Error Messages Model and Serial Numbers not 820 restored Following replacement of the P500 processor controller board or main measurement board Controller and measurement the model number and or serial number do not 821 board model numbers do not match or have not been re stored Re store the match model number and serial number as prompted Controller and measurement from the front panel Refer to the service guide for 822 board serial numbers do not additional information match Calibration
130. e delay in seconds Delays between subsequent measurements i e multiple readings per trigger see SAMP1e COUNT are set with the SENSe GATE STARt DELay commands CONFigure and MEASure set a defaut delay of 0 0s 53220A 53230A User s Guide 151 5 152 Triggering and Gating Trigger Delay Example configure for frequency set system trigger parameters CONF FREQ 5E6 0 1 2 TRIG SOUR EXT trigger source external TRIG SLOP POS external trigger slope positive TRIG DEL 1 1s delay after trigger received System Trigger Count Cae Source Trig Ned Trig Rags Trig Im Trigger JExternal Pos Neg AUI Trigger g Delay The number of system triggers the counter will receive before returning to the idle state from the wait for trigger state is set with the command TRIGger COUNt lt count gt MINimum MAXImun DEFault TRIGger COUNt MINimum MAXimum DEFault query form The trigger count range is 1 to 1 000 000 CONFigure and MEASure set a default trigger count of 1 Trigger Count Example configure for frequency set system trigger parameters CONF FREQ 5E6 0 1 2 TRIG SOUR EXT trigger source external TRIG SLOP POS external trigger slope positive TRIG DEL 1 1s delay after trigger received TRIG COUN 2 accept 2 system triggers 53220A 53230A User s Guide Triggering and Gating 5 Sample Count Source Jiinternal Rdgs Trig l Trigger EA cs a as
131. e difference between the measurement and the reference value expressed in parts per billion SCALe performs an Mx B operation The result is the measurement x multiplied by the gain value M CALCulatel SCALe GAIN command minus the offset value B CALCulatel SCALe OFFSet If CALCulatel SCALe INVert is enabled On the measurement will first be inverted 1 x resulting in a M x B operation Scaling function results must be in the range of 1 0E 24 to 1 0E 24 0 0 or 1 0E 24 to 1 0E 24 Results outside these limits will be replaced with 9 9E 37 negative infinity 0 or 9 9E 37 positive infinity Following a reset RST or instrument preset SYSTem PRESet the scaling func 53220A 53230A User s Guide 197 6 198 53220A 53230A Math Graphing and Data Logging tion is set to NULL Scale Reference Value Scale Function Get New G aE User Off On Null Reference Units The NULL PCT PPM and PPB scaling functions require a reference value For PCT PPM and PPB the value cannot be 0 The reference can be obtained automatically or specified directly with the commands CALCulate 1 SCALe REFerence AUTO OFF ON CALCulate 1 SCALe REFerence AUTO query form CALCulate 1 SCALe REFerence lt reference gt MINimum MAXimum DEFault CALCulate 1 SCALe REFerence MINimum MAXimum DEFault query form ON automatically selects the first measurement as the r
132. e name csv assumed Action Export Path Export a The readings used to create the histogram can be saved to internal flash memory or to an external USB memory device as comma separated values CSV in one measurement per line ASCII format Selecting Save Readings opens the Export action window from which a path and file name can be selected or created The number of readings exported is the total number in reading memory at the time Export Readings is pressed which may not be the total reading count TRIGger COUNt x SAMPle COUNt Exporting readings clears reading memory and re starts the histogram on the next trig ger received Zoom amp Markers View Histogram Options off On Marker2 LockMrkrs Zoom Pan Show Off On All 53220A 53230A User s Guide 221 6 222 53220A 53230A Math Graphing and Data Logging For marker zoom and pan adjustment the decimal position i e 100 s 10 s 1 s highlighted by the arrow keys sets the amount of movement coarse or fine for each tick of the rotary knob The Marker softkeys allow you to position markers on individual bins within the histo gram and if desired Jock the relative distance between the markers When locked together moving either Marker1 or Marker2 with the front panel knob or using Shift followed by a bin number also moves the other marker while maintaining the distance between the two The data corresponding to the m
133. e of this document or of any information contained herein Should Keysight and the user have a separate written agreement with warranty terms covering the mate rial in this document that conflict with these terms the warranty terms in the separate agreement shall control Assistance This product comes with the standard product warranty Warranty options extended support contacts product maintenance agreements and customer assistance agreements are also available Contact your nearest Keysight Tech nologies Sales and Service office for further information on Keysight Technologies full line of Support Programs Certification Keysight Technologies certifies that this product met its published specifications at time of ship ment from the factory Keysight Technologies fur ther certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology to the extent allowed by the Institute s calibration facility and to the calibration facilities of other International Standards Organization members Exclusive Remedies THE REMEDIES PROVIDED HEREIN ARE THE CUSTOMER S SOLE AND EXCLUSIVE REMEDIES KEYSIGHT TECHNOLOGIES SHALL NOT BE LIA BLE FOR ANY DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSE QUENTIAL DAMAGES WHETHER BASED ON CONTRACT TORT OR ANY OTHER LEGAL THEORY Restricted Rights Legend U S Government Restricted Rights Soft ware and technical data rights
134. e the counter s channel and channel 2 inputs OUTput STATe OFF must be set when using gate source EXTernal See Enabling Gate Signals on the Gate In Out BNC for more information and for information on using gate signals to synchronize other instruments External Gate Signal Polarity Timed Ext Adv Chan 2 a ee ee al Gate Src Polarity Ext Pos Neg i When using the external gate sources the polarity of the gate signal and therefore the duration of the gate is set or changed with the command 166 53220A 53230A User s Guide Triggering and Gating 5 SENSe TOTalize GATE POLarity POSitive NEGative SENSe TOTalize GATE POLarity query form POSitive starts totalizing on a positive edge on the Gate In Out BNC or channel 1 channel 2 input and stops totalizing on the next negative edge NEGative starts totalizing on a negative edge on the Gate In Out BNC or channel 1 channel 2 input and stops totalizing on the next positive edge CONF igure and MEASure do not change the polarity setting Following a reset RST or instrument preset SYSTem PRESet or Preset key the negative edge is selected To set the polarity of the external gate signal select the gate polarity and source CONF TOT TIM SENS TOT GATE POL POS set polarity SENS TOT GATE SOUR EXT set source External Gate Signal Threshold 1 0 000ms Gate Src eter Gate Out Timed Off On
135. eading 188 53220A 53230A User s Guide Triggering and Gating 5 Automatic Gate Extension Inherent to 53220A 53230A frequency and period measurements is automatic gate extension in which the measurement ends one edge event of the input signal after the gate is closed stopped Thus the sample count SAMP1le COUNt does not increment and cause a potential state change in the trig ger gate cycle Figure 5 2 until the gate extension is complete 53220A 53230A User s Guide 189 5 Triggering and Gating 190 53220A 53230A User s Guide Keysight 53220A 53230A 350 MHz Universal Counter Timer User s Guide 6 53220A 53230A Math Graphing and Data Logging Math Functions 192 Enabling the CALCulatel Subsystem 193 Smoothing Data 194 Scaling Functions 195 Statistics 203 Limit Checking 207 Histograms 211 Trend Charts 224 Data Logging 230 Graphics Functions and Reading Memory 236 The Keysight 53220A 53230A counter features math operations that allow you to scale readings test limits and statistically analyze data Its graphics functions compute and display histograms and trend charts of real time measurement data This chapter provides information on how these features are used through the SCPI CALCulate subsystem and with the front panel Math Graph and Data Log keys KEYSIGHT TECHNOLOGIES 6 53220A 53230A Math Graphing and Data Logging Math Functions 192 The 53220A 53230
136. eadings to 242 overview display 15 front panel 13 instrument 15 rear panel 14 P PC IO interfaces LAN GPIB USB 43 period measurements 84 phase measurements 102 positive and negative burst width measurements 116 power on states 258 probe factor 125 probe input compatibility 125 probes 122 input range 124 product options 16 programming environments 36 protection relay 123 proxy server 38 48 pulse measurement threshold 136 pulse repetition frequency measurements 113 53220A 53230A User s Guide pulse repetition interval measurements 113 pulse threshold example 137 pulse width measurements 96 Q questionable condition register voltage overload bit 123 Questionable Data register clearing 210 questionable event register voltage overload bit 123 R radix 25 range 124 range example 124 reading count query 245 statistical functions 204 reading decimation 229 reading formats 238 reading memory 241 creating data files 251 creating folders 249 creating state files 253 default folder 251 reading threshold 246 transferring readings to output buffer 242 reading the battery level 21 reading the current count 169 reading transfer size 240 reading transfers memory to output buffer 242 reading units 201 real data formats 238 REAL format reading length 240 rear panel overview 14 53220A 53230A User s Guide reference oscillator configuration 66 external frequencies 68 standby power 70 using an external r
137. edge level defined by the INPut subsystem and ends on the next stop event defined The CONFigure commands set the time interval gate source to IMMe diate gate source EXTernal is the counter s rear panel Gate In Out BNC Using an exter nal gate the measurement begins on the first start event after the external gate is received The measurement ends following the stop event The start and stop events edge level are defined by the INPut subsystem NOTE OUTput STATe OFF must be set when using gate source EXTernal See Enabling Gate Signals on the Gate In Out BNC for more information and for information on using gate signals to synchronize other instruments 170 53220A 53230A User s Guide Triggering and Gating 5 External Gate Signal Polarity Gate Src Polarity Ext Pos Neg i When using an external gate source the polarity of the gate signal is changed with the command SENSe TINTerval GATE POLarity POSitive NEGative SENSe TINterval GATE POLarity query form POSitive enables a time interval measurement following a positive edge on the Gate In Out BNC NEGat ive enables a time interval measurement following a negative edge on the Gate In Out BNC For either edge the measurement begins on the first start event after the gate edge Following a reset RST or instrument preset SYSTem PRESet or Preset key the negative edge polarity is selected Gate Source ADVa
138. eference 66 reference settings auto level 29 date and time 28 measurement time out 29 72 time base 29 reference values example 199 scaling functions 198 relative threshold level 131 removing folders 261 resetting histograms 220 resetting limits 210 resolution and gate time 158 digits 158 resolution enhancement 158 RF signal strength 140 rise and fall time measurements 93 S safety information 3 safety symbols 4 sample count 153 saving states from the front panel 254 scale functions assigning reading units 201 enabling 196 example 202 gain and offset 199 M x b 200 Mx B 197 NULL 197 PCT 197 PPB 197 PPM 197 reference value 198 SCALe 197 Index scaling data 195 SCPI formats 73 screen capture 26 screen control 25 securing the instrument NISPON 31 self test increasing the timeout using Interactive IO 56 sensitivity 129 setting the gate source 156 setting the gate time totalizing 165 setting up histogram data 215 226 shipped with counter 15 signal conditioning settings summary 120 signal conditioning path 120 signal levels 140 signal strength 140 single period measurements 104 slope threshold 139 slope example 140 smoothing data example 195 software installation Keysight IO libraries 41 IVI drivers 43 system requirements 42 standard deviation 204 207 standby power 19 70 start gate configuration example 181 start gate delay 181 start gate source 177 293 Index statistical functions 203 Allan
139. eference for all subsequent readings in the reading count trigger count x sample count OFF disables automatic selection and requires the reference to be specified directly Following a reset RST or instrument preset SYSTem PRESet automatic refer ence selection is enabled ON lt reference gt specifies the reference value directly The reference is used for all readings in the reading count Following a reset RST or instrument preset SYSTem PRESet a reference value of 0 0 is set and automatic reference is enabled From the front panel pressing Get New Reference takes a reference measurement on the first trigger received after the key is pressed A reference can be entered manually by selecting Ref Value and using the knob or SHIFTed numeric keys 53220A 53230A User s Guide 53220A 53230A Math Graphing and DataLogging 6 Reference Example determine the percentage difference of 100 frequency measurements to a reference value of 50000 000 CONF FREQ 50E3 1 SAMP COUN 100 take 100 readings CALC STAT ON enable CALCulatel subsystem CALC SCAL STAT ON enable scaling CALC SCAL FUNC PCT select scale function PCT CALC SCAL REF 50 000E3 set reference value INIT Scale Gain and Offset The function CALCulate 1 SCALe FUNCtion SCALe performs an Mx B operation on each reading where M is the gain value x is the reading and B is the offset The gain value used in the equation is set with
140. el 3 burst frequency sibly due to a frequency shift of the input signal could not be measured See additional errors accompanying this mes sage The input signal may contain pulses of varying widths If using automatic gate control au Channel 3 pulse ended before SENSe FREQuency BURSt GATE AUTO ON gate closed turn automatic control OFF and decrease the gate time manually using SENSe FREQuency BURSt GATE TIME until a reading is obtained sees Channel 3 power too high For continuous wave CW measurements signal for operation power must be lt 19 dBm For pulse measure ments signal power must be lt 13 dBm hes Channel 3 power too low For continuous wave CW measurements signal for operation power must be gt 27 dBm For pulse measure ments signal power must be gt 13 dBm Ch 13 h d The measurement could not be completed due to 317 Pee R a change too low or too high in input signal during measurement ge too lo igh in input sig power 318 Channel 3 input is not a The measurement function selected requires pulsed signal expects a pulsed signal E Channel 3 frequency shift The FM a aes of the input signal frequency detected during measurement exceeded 50 during the current measurement gate The FM tolerance of the input signal frequency 320 ner Signal iegueneyshin exceeded 50 during the current measurement caused counter overflow gate The time allotted for an individual measurement to M tti t complete was exceeded
141. elative to the pulse width The on portion of the pulse width is established by a 6 dB and 12 dB detector threshold Figure 4 6 is an example of the thresholds relative to the peak amplitude of the burst signal 53220A 53230A User s Guide 135 4 53220A 53230A Input Signal Conditioning PRI PRF gt 6 dB off 6dB p p amplitude 12 dB off Figure 4 6 6 dB and 12 dB Detector Thresholds The detector threshold and therefore the on portion of the pulse width must be consid ered when making burst measurements such as positive on width and negative off width This threshold is set with the command INPut3 BURSt LEVel lt dB gt MINimum MAXimum DEFault INPut3 BURSt LEVel MINimum MAXimum DEFault query form The dB levels are 6 and 12 and are nominal i e non specified values CONFigure and MEASure do not change the detector threshold setting Following a reset RST or front panel preset Preset the threshold is set to 6 dB 136 53220A 53230A User s Guide 53220A 53230A Input Signal Conditioning 4 This command and burst measurement capability are only available on the 53230A counter with channel 3 Option 106 or 115 6 GHz or 15 GHz microwave input and Pulse Microwave Measurement Option 150 Detector Threshold Example configure a positive on width measurement on channel 3 CONFigure PWIDth BURSt 3 INP3 BURS LEV 12 set 12 dB detector t
142. er but more specific information is not available 131 Invalid suffix The parameter suffix is specified incorrectly e g 10 MZ rather than 10 MHZ 134 Suffix too long A suffix contains more than 12 characters 138 Suffix not allowed A suffix was specified for a numeric parameter when one is not allowed A character error was detected in the command 140 Character data error header or in a parameter but more specific infor mation is not available 141 Invalid character data Either an invalid character was received or the character is not valid for the command header 144 Character data too long The character data contains more than 12 charac ters 148 Character data not allowed A valid character was specified when another data type numeric boolean is required 150 String data error An error was encountered in the string specified but more specific information is not available 151 Invalid string data A required string parameter was received but is invalid 158 String data not allowed A valid string was specified when another data type numeric boolean is required 160 Block data error An error was encountered in the block data but more specific information is not available The number of bytes in a definite length data 161 Invalid block data block does not match the number of bytes indi cated by the block header 53220A 53230A User s Guide 277 A 278 53220A 53230A Error Messages A block data element w
143. er On States 258 Managing Folders and Files 260 The Keysight 53220A 53230A counters allow you to specify the measurement reading format and storage location both of which affect throughput speed This chapter explains how data formats are set and the movement and storage of mea surements and other information within the instrument KEYSIGHT TECHNOLOGIES 7 Formats and Data Flow Reading Formats and Data Flow 238 A counter data format is specified when a particular format ASCII REAL is required The data is converted to that format when sent to the output buffer directly or when transferred from reading memory The command used to set the data format is FORMat DATA ASCII REAL lt length gt FORMat DATA query form The formats and lengths are described in Table 7 1 Table 7 1 Counter Data Formats Type Representation Length ASCII 4 57538162393720E 006 15 digits REAL definite length or indefinite length arbitrary block format 64 bits Format ASCII are ASCII characters Each reading is comma separated The instrument always returns 15 significant digits Format REAL is IEEE 754 binary data 64 bit The data may be transferred in IEEE 488 2 indefinite length or definite length block format Byte order is controlled by the FORMat BORDer command Indefinite Length Block 0 lt 8 bitdatabytes gt NL END using MEASure READ FETCh Definite Length Block lt
144. er of entries and is expressed as an exact count Count or the bin s percentage of the total reading count This setting is only available from the front panel Lower and Upper Ranges T i Number of AutoRangd EAEI Upon Set to Outer Bins Bins off On MEI Bin Min Max off On I The lower and upper ranges of the histogram are specified directly with the commands CALCulate2 TRANsform HISTogram RANGe LOWer lt value gt MINimum MAXimum DEFault CALCulate2 TRANsform HISTogram RANGe LOWer MINimum MAXimum DEFault query form CALCulate2 TRANsform HISTogram RANGe UPPer lt value gt MINimum MAXimum DEFault 53220A 53230A User s Guide 53220A 53230A Math Graphing and Data Logging 6 CALCulate2 TRANsform HISTogram RANGe UPPer MINimum MAXimum DEFault query form value directly specifies the histogram lower and upper range values The value ranges are 1 0E 15to 1 0E 15 0 0 1 0E 15to1 0EH 15 The default lower and upper ranges and the ranges set following a reset RST or instrument preset SYSTem PRESet are 0 0 When setting the ranges both a lower range and an upper range must be specified Any of the following steps will prevent a settings conflict error e g lower range greater than upper range due to the order in which ranges are set e setting the upper range first e setting both ranges on the same line programmatically e enabling the his
145. erval measurement on a signal with the characteristics shown in Figure 3 7 Figure 3 7 Single Channel Time Interval Measurement configure a time interval measurement on ch 1 Use defaults as set by CONFigure except for those set as shown RST reset to start from known state CONF TINT 1 INP COUP AC set AC coupling INP IMP 50 set input impedance to 50 ohm INP LEV1 g0 set start threshold to 1V INP LEV2 1 0 set stop threshold to 1V INP SLOP1 POS set start slope to positive rising INP SLOP2 NEG set stop slope to negative falling READ initiate counter and take reading Notes 1 Input coupling and impedance are set to assure the intended start and stop trigger thresholds as the thresholds are specified as absolute values The measurement starts on the positive rising edge on channel 1 and stops on the negative falling edge 53220A 53230A User s Guide 93 3 53220A 53230A Measurements Rise Time and Fall Time Time Pulse Duty Rise Phasa Single Interval Width Cycle Fall Period m d 1 Edge Auto Level EIT Upper Level NoiseRej Rise Fall Off On FSR Level Presets Off On _ _ An example of rise and fall times on an input signal are shown in Figure 3 8 lt frequency gt Figure 3 8 Rise Time and Fall Time Measurements The commands used to make rise and fa
146. es RST reset to start from known state MEAS RTIM 20 80 2 53220A 53230A User s Guide 95 3 96 53220A 53230A Measurements using CONFigure measure rise time on the wave segment from 1 75V to 750 mV RST reset to start from known state CONF RTIM 1 75 V 750 MV 1 INP COUP DC set AC coupling INP IMP 50 set input impedance to 50 ohm READ using MEASure measure fall time using 15 and 65 references RST reset to start from known state MEAS FTIM 15PCT 65PCT 2 using CONFigure measure fall time on the wave segment from 1 25V to 1 4V RST reset to start from known state CONF FTIM 1 4V 1 25V 1 INP COUP DC set DC coupling INP IMP 50 set input impedance to 50 ohm READ Notes 1 Lower and upper references can be specified as percentages or as absolute levels in either the CONFigure or MEASure command For either rise time or fall time mea surements the lower reference is specified first 2 Absolute references are relative to the amplitude of the signal and must take into con sideration the counter s input coupling and impedance settings 3 See Chapter 4 for information on configuring the input signal path which includes coupling and impedance 53220A 53230A User s Guide 53220A 53230A Measurements 3 Pulse Width Pulse idth Duty Rise Time Cycle Fall Interval
147. es if Show All is pressed and readings continue to be taken 53220A 53230A User s Guide 229 6 53220A 53230A Math Graphing and Data Logging When a marker is moved to a decimation point the number of the first reading in the corresponding group is displayed This number should be noted if it is necessary to view individual readings within a group Viewing Readings Within a Decimation Group Decimated reading values that are grouped and represented by a single decimation point can be viewed individually using markers and the trend chart s Pan control 1 Select a marker and using the knob move the marker to the decimation point with the reading level of interest The reading number corresponding to the marker position is the first reading in the group This may not be the maximum or minimum value within the group 2 Select Pan and using the Shift ed numeric keys enter the number of the first reading The reading indices show a span of 100 readings beginning with the first reading in the group 3 Select Marker or Marker2 and using the arrow keys highlight the rightmost 1 s place in the position window Rotate the knob to move the marker one reading at at time The reading value and number are shown as the marker is advanced For decimation groups with more than 100 readings select Pan and enter the next read ing number after the upper reading index Figure 6 8 to view the next 100 readings Data Logging The d
148. es automatic selection of the histogram lower and upper range values OFF disables automatic selection Following a reset RST or instrument preset SYSTem PRESet automatic range selection is enabled The number of readings from which the minimum and maximum range values are selected ON is set with the command 53220A 53230A User s Guide 53220A 53230A Math Graphing and DataLogging 6 CALCulate2 TRANsform HISTogram RANGe AUTO COUNt lt value gt MINimum MAXimum DEFaul1t CALCulate2 TRANsform HISTogram RANGe AUTO COUNt MINimum MAXimum DEFault query form value specifies the first n number of readings from which lower and upper range values are obtained 10 to 1 000 readings can be specified The default number and the number set following a reset RST or instrument preset SYSTem PRESet is 100 Example Setting up a Histogram The following example creates a 15 bin histogram of 3 000 counter measurements The lower and upper ranges are automatically determined from the first 300 readings taken CONF FREQ 50E3 1 configure frequency measurement SYST TIM 100 ms measurement timeout TRIG SOUR BUS set software triggers as source TRIG COUN 1 trigger count 1 SAMP COUN 3000 3000 readings per trigger SENS FREQ GATE SOUR TIME set gate source SENS FREQ GATE TIME 1E3 set a 1 ms gate time DISP MODE HIST
149. es below 35 C 10 C to 60 C storage If battery operation is in use above the maximum specified operating temperature the battery will shut down the instrument to preserve its use AC power must be applied to recover from a shut down caused by this condition For a complete list of battery and all 53220A 53230A product specifications refer to the data sheet included on the 53210A 53220A 53230A Product Reference CD p n 53220 13601 or on the Web at www keysight com find 53220A www keysight com find 53230A Battery Care When the battery is enabled and the instrument is not connected to AC power the battery discharges at 30 of full capacity per day When the battery is disabled and AC power is not connected the battery discharges at 10 of full capacity per month When storing the instrument without AC power applied do not allow the battery to discharge below 10 The following equation can be used to determine instrument storage time without AC power and still enable the instrument to be fully recharged months battery disabled 10 days battery enabled 30 90 A fully discharged battery may need to be replaced if it has not been recharged for six to 18 months 53220A 53230A User s Guide Preparation for Use 1 Using Built In Help Highlight the desired topic and press SELECT System 1 View the last message displayed 2 View remote command error queue 3 Get HELP on any key 4 Softkey Conventi
150. eshold is set and monitored When the number of readings in memory reaches the threshold all readings in memory at that time are retrieved 53220A 53230A User s Guide Formats and Data Flow 7 RST CLS reset start from known state SYST TIM 001 set a 1 ms measurement timeout CONF FREQ 1E6 0 1 1 configure measurements TRIG COUN 5 send 5 system triggers SAMP COUN 250E3 take 250k readings trigger FORM DATA REAL 64 set data format to binary DATA POIN EVEN THR 10E3 set memory threshold to 10k NIT initiate readings loop until all readings complete For cnt 0 cnt lt 1 25E6 cnt 10000 Do spoll1 STAT OPER COND serial poll condition reg sleep 100 wait 100 ms while spoll1 amp 4096 repeat until threshold is reached R 1053 retrieve readings from memory 10k at a time Counter File System Measurements in volatile reading memory and counter configuration states can be stored in files within the counter s internal non volatile flash memory or on a external USB memory device connected to the host port on the front panel Figure 7 1 Files are created within folders on the root directory or within sub folders relative to the root directory The relationship of folders and files in internal flash memory and on the USB drive is shown in Figure 7 2 53220A 53230A User s Guide 247 7 Formats and Data Flow Keysight 532
151. f a given set of readings can be determined using the follow ing commands Before any of the commands are used statistics must be enabled with CALCulate 1 AVERage STATe ON CALCulate 1 AVERage AVERage returns the average mean of all readings in the reading count CALCulate 1 AVERage MINimum returns the minimum value of all readings in the current reading count CALCulate 1 AVERage MAXimum 53220A 53230A User s Guide 205 6 206 53220A 53230A Math Graphing and Data Logging returns the maximum value of all readings in the current reading count CALCulate 1 AVERage PTPeak returns the average peak to peak value average maximum value average minimum value of all readings in the reading count Example Computing Individual Statistics The following example shows these reading parameters queried individually CONF PER 1 configure period measurement TRIG COUN 2 trigger count 2 SAMP COUN 100 100 rdgs per trigger SENS FREQ GATE TIME 10e 3 10 ms gate time CALC STAT ON enable CALCulatel subsystem CALC AVER STAT ON enable statistics INIT initiate the measurements WAL wait for all rdgs to complete CALC AVER MIN query individual parameters CALC AVER MAX CALC AVER AVER CALC AVER PTP Allan Deviation Allan deviation which is used to estimate stability is selectable from the front panel Figure 6 3 or can be enabled
152. g 202 deleting a folder 261 duty cycle measurements 102 FETCh 243 frequency measurements 82 frequency ratio measurements 84 memory threshold 246 period measurements 86 phase measurements 104 pulse width measurements 98 R 243 READ 242 rise and fall time measurements 95 setting the auto level frequency 135 single period measurements 106 start gate configuration 181 stop gate configuration 189 totalizing continuous 111 totalizing timed 109 two channel time interval 88 92 using an external reference oscillator 68 external gate signal polarity 162 166 171 external gate signal threshold 163 167 EXTernal gate source 172 external gate start signal polarity 179 external gate start signal threshold 180 external gate stop signal polarity 187 external gate stop signal threshold 188 external reference oscillator detecting the frequency 68 external reference oscillator example 68 external reference oscillator frequency 68 F fall time measurements 93 file system 247 files copying 265 files and folders 261 firmware updates 56 disabling calibration security 56 disabling emulation mode 57 downloads 57 installation 58 update utility 57 flash memory 247 folder names entering from front panel 250 folders catalog of 265 data and configuration files 249 251 default 251 deleting 261 state files 253 53220A 53230A User s Guide frequency measurements 80 external gate signal polarity 162 external
153. g MEA Sure command MEASure FREQuency lt expected gt MINimum MAXimum DEFault lt resolution gt MINimum MAXimum DEFault lt channel gt The programming conventions are as follows Command Keywords and Abbreviated Commands Command keywords e g MEASure FREQuency are separated by a colon Upper case letters indicate the abbreviated spelling of the keyword or parameter Either the abbreviated form or the entire command parameter must be used Optional Keywords and Parameters Optional implied keywords and parameters are indicated by square brackets e g lt channel gt and are not included when the command is sent If an optional parameter is not specified a default value is used Separating Commands and Parameters and Linking SCPI Commands A space must separate the last keyword and the first parameter Commas separate multiple parameters The symbol must precede each counter channel number and parentheses must enclose each channel MEAS FREQ RAT 5E6 2 1 Multiple Subsystems To send multiple SCPI commands in a single string com 53220A 53230A User s Guide 75 3 76 53220A 53230A Measurements mands within different subsystems root nodes must be separated by a semicolon and a colon For example the string INP COUP AC TRIG SOUR EXT requires a semicolon and a colon because the subsystems root nodes INPut and TRIG ger are not the
154. g gate source EXTernal See Enabling Gate Signals on the Gate In Out BNC for more information and for information on using gate signals to synchronize other instruments External Gate Signal Polarity Timed ext Adv Chan 2 r Gate Src Polarity Ext Pos Neg ie ee ee J When using any external gate source the polarity of the gate signal and therefore the duration of the gate is set or changed with the command SENSe FREQuency GATE POLarity POSitive NEGative SENSe FREQuency GATE POLarity query form 162 53220A 53230A User s Guide Triggering and Gating 5 POSitive starts the measurement on a positive edge on the Gate In Out BNC or chan nel 1 channel 2 input and stops the measurement on the next negative edge NEGative starts the measurement on a negative edge on the Gate In Out BNC or channel 1 channel 2 input and stops the measurement on the next positive edge CONF igure and MEASure do not change the polarity setting Following a reset RST or instrument preset SYSTem PRESet or Preset key the negative edge is selected To set the polarity of the external gate signal select the gate polarity and source CONF PER SENS FREQ GATE POL POS set polarity SENS FREQ GATE SOUR EXT set source External Gate Signal Threshold 1 00 000ms Gate Src LEALE Gate Out lt Gate Timed Off On Gate Src serupi Gate Out Ghan 2 C
155. g the input signal path which includes coupling and impedance 53220A 53230A User s Guide 99 3 53220A 53230A Measurements Duty Cycle i t Pulse Duty Prasa Single es Time Interval Width Cycle l Period NoiseRej DutyCycle Auto Level METE Off On Pos Neg Off On Positive and negative duty cycle measurements are the ratio of the positive or negative widths to the period of the signal Figure 3 10 period gt l LLL duty cycle i l l duty cydle I Figure 3 10 Positive and Negative Duty Cycle Measurements The commands used to make positive and negative duty cycle measurements are 100 53220A 53230A User s Guide 53220A 53230A Measurements 3 MEASure PDUTycycle lt reference gt MINimum MAXimum DEFault lt channel gt CONFigure PDUTycycle lt reference gt MINimum MAXimum DEFault lt channel gt MEASure NDUTycycle lt reference gt MINimum MAXimum DEFault lt channel gt CONFigure NDUTycycle lt reference gt MINimum MAXimum DEFault lt channel gt reference specifies the threshold level where the duty cycle measurement begins For positive duty cycle measurements the level at which the signal passes through the threshold in the positive rising direction and again in the negative falling direction defines the positive duty cycle Similarly the level at which the signal passes through the thresho
156. ger Data Logger Application File name Internal DataLog csv Start Delay 00 00 10 Press Run Duration 00 01 00 Time DataLog hh mm ss 0 09 00 File Start Duration Set 4 Select g Delay Time Time A Pressing the Run softkey enables data logging Data logging begins following any spec ified start delay when a valid path file exists A default path and file name of Internal DataLog is used when the data logger application is started Select Yes to overwrite the file and begin Viewing Readings ay patie e Bet Puation run ante A trend chart is populated as readings are logged After data logging completes the readings are stored in the file specified Pressing View Results when logging is stopped and the readings are saved or when logging is complete displays a trend chart of the saved readings Pressing View Results after logging Time Stamp measurements will display Graphics not supported for this function Figure 6 12 is an example of a trend chart as readings are logged Figures 6 8 and 6 10 53220A 53230A User s Guide 53220A 53230A Math Graphing and DataLogging 6 contain more information on the trend chart window Function Channel J Current Reading Count memory Y Max 1 098 706 054 7kHz Frequency Y Min 900 225 830 08 Hz Channel 1 Span 198 480 224 61Hz Count 328 ax Trend Window 100 points Reading Time to Stop 00 00 14 reading
157. guration 43 LAN cards multiple 56 limit checking 208 209 clearing limits 210 clearing the Questionable Data register 210 example 210 Questionable Data register 208 setting lower and upper limits 209 locating instruments 45 low pass filter 127 M M x B 200 managing folders and files 261 copying files 264 deleting files 261 moving files 264 manuals 16 materials included with counter 15 292 math functions enabling 193 limit checking 208 M x B 200 scaling 197 smoothing data 194 math operations statistical functions 203 mean 204 MEASure commands 75 77 measurement gate 156 measurement mode auto 71 continuous 71 reciprocal 71 measurement time out 29 72 measurements burst pulse 111 duty cycle 99 frequency 80 frequency ratio 82 period 84 phase 102 pulse width 96 rise and fall time 93 single period 104 time interval 89 time stamp 86 totalizing continuous 109 totalizing timed 106 measuring low frequency signals low frequency signals 132 memory internal flash 247 moving average filter 194 moving files 264 Mx B 197 199 N NISPOM 31 noise rejection 137 noise rejection example 138 noise rejection from bandwidth limiting 138 numeric format 24 digit group separator 25 radix 25 parator 25 radix 25 O operating and storage environments 17 operating conditions 18 operating environment 17 option 300 battery 20 options 16 output buffer description 242 transferring r
158. han 2 Off On Local Coupling Impedance Range Bw Limit Probe AC DC 1MQ 509 5V 50Vv Off 100k None 10 1 For external sources INPut 1 and INPut2 Chan and Chan 2 softkeys a fixed input threshold voltage must be specified in addition to the gate signal polarity This is done using the command INPut 1 2 LEVel 1 2 ABSolute lt volts gt MINimum MAXimum DEFault INPut 1 2 LEVel 1 2 ABSolute MINimum MAXimum 53220A 53230A User s Guide 163 5 164 Triggering and Gating DEFault query form The specified edge polarity of the gate signal crossing the threshold opens the gate The opposite edge polarity of the signal crossing the threshold closes the gate More information on the INPut subsystem can be found in Chapter 4 53220A 53230A Input Signal Conditioning When using external sources INPut 1 and INPut2 the channel selected as the gate source cannot be the same channel on which the measured signal is applied That is the gate source channel cannot be involved in the measurement To set the polarity and level for an external gate source select the gate polarity source and threshold level CONF FREQ SENS FREQ GATE POL POS set polarity SENS FREQ GATE SOUR INP set source channel 1 INP LEV 4 set threshold 4V Gate Source ADVanced Gate source ADVanced enables extended control of the gate signal through the coun ter s SENSe G
159. he Interactive IO window shown in Figure 2 2 From this window SCPI commands can be sent to the instrument Web interface pages other than the Welcome Page may be password protected When shipped from the factory no password is set however an Enter Password dialog box may appear Click on the dialog box to continue If the page is password protected and the password is unknown pressing Utility I O Config LAN Reset on the front panel clears the password 40 53220A 53230A User s Guide 53220A 53230A Software Installation and Interface Configuration 2 Interactive 10 Interactive Commands Command MEAS FREQ 1 Send Command Read Response Send amp Read gt MEAS FREQ 1 lt 1 01999692857698E 007 View Errors Clear History Figure 2 2 The Web UI SCPI Command Interface Any command in the counter s SCPI command set can be sent to the instrument Query commands which include in the syntax return data and can be sent by selecting Send amp Read after the command is entered Commands which do not return data are sent using Send Command Changing LAN Settings and Using Password Protection The Network Configuration Page icon provides access to the counter s LAN settings and enables you to set a password to prevent unauthorized access to the Web instrument interface Select Modify Configuration to change and save settings 53220A 53230A User s Guide 41 2 53220A
160. he parameter format is Tdrive path lt file_name gt drive is either INT internal flash memory or USB external memory device path is an absolute path and folder name If a folder is specified it must have been previously created see MMEMory MDIRectory The combination of folder and file name cannot exceed 240 characters and cannot con tain the characters lt gt Preference files have a prf extension User preferences include settings such as e display brightness radix separator and screen saver state e Help language selected e state recall and select settings 53220A 53230A User s Guide 255 7 256 Formats and Data Flow e reference oscillator source external reference frequency standby setting e auto level minimum frequency e battery state enabled disabled e beeper setting e measurement time out e 531xx SCPI compatibility language setting When loading a preferences file that specifies a static IP address for LAN be careful that this does not result in two instruments with the same IP address on your LAN This could result in LAN configuration errors on both instruments User preferences cannot be stored or loaded retrieved using the front panel Using SAV and RCL Additional commands that can be used to save and recall instrument states are the IEEE 488 2 common commands SAV and RCL With these commands up to five states can be saved and recalled by l
161. hreshold Noise Rejection Hysteresis Coupling Impedance Range Level BW Limit Probe 2 3 p Ma Set E AC DG Mo 509 5V 50v Setup loft 100k None 10 1 Channel Setup Auto Level EY TIB 7 Slope NoiseRej Off On Pos Neg Off On Threshold sensitivity Figure 4 4 to the input signal is a function of the amount of noise rejection or hysteresis Noise rejection the hysteresis band at the counter input is increased or decreased with the command INPut 1 2 NREJection OFF ON INPut 1 2 NREJection query form ON enables noise rejection thus increasing hysteresis and decreasing sensitivity by 50 This setting should be used when noise is present in the signal environment How ever if the threshold level is close to a peak amplitude positive or negative a count will not occur if the signal does not cross both hysteresis levels due to the increased hys teresis band OFF disables noise rejection which decreases hysteresis and increases sen sitivity CONF igure and MEASure do not change the noise rejection setting Following a reset RST or instrument preset Preset noise rejection is disabled off 53220A 53230A User s Guide 137 4 53220A 53230A Input Signal Conditioning Noise Rejection from Bandwidth Limiting For input signals up to 100 kHz reducing the counter s bandwidth from 350 MHz to 100 kHz see Bandwidth Limiting Filter a
162. ics Show Reset i Histogram Options Show Save Zoom amp Reset Off On P P Allan Stats s Off On 4 Count Readings Markers me Reset Histogram Reset Stats Sen clears current histogram record clears current set of statistics record Reset eset does not clear reading memory does not abort readings does not clear reading memory does not abort readings State Histogral i i Seat x clears count and new histogram re starts on next reading clears count and new set of statistics re start on next after reset reading after reset record record Reset z Y Max 10 399 968 840MHz Frequency Stats A REGTE Y Min 10 399 968 628MHz Channel 1 rout Span 212 235 519 66mHz Count 100 Y Max memory i Readings Chart Options Save Zoom amp Clear off On 4 Readings Markers Readings Clear Readings Trend Chart Clears the trend chart clears reading memory does not abort readings clears count and re starts on next reading after clear Clear Readings Figure 6 13 Reading Memory and Resetting Clearing Graphics 236 53220A 53230A User s Guide Keysight 53220A 53230A 350 MHz Universal Counter Timer User s Guide 7 Formats and Data Flow Reading Formats and Data Flow 238 Specifying a Format 239 Setting the Block Transfer Byte Order 239 Data Flow 240 Counter File System 247 Creating Folders and Files in Flash Memory and on the USB Drive 249 User Defined Pow
163. ies YMax and YMin cannot specify a boundary smaller than the Math reading limits A maximum of 100 readings or decimation points can be displayed in the trend window 53220A 53230A User s Guide 53220A 53230A Math Graphing and Data Logging 6 Clearing the Trend Chart Chart Options Off On Clearing the trend chart clears reading memory and restarts the reading count on the next trigger received Saving Readings Chart Options Save Zoom amp Clear Off On Readings Markers Readings J Action Export data Path MAE File Q Use knob to create file name csv assumed Action Path Export 1 Export ERC Readings The readings represented by the trend chart can be saved to internal flash memory or to an external USB memory device as comma separated values CSV in one measurement per line ASCII format Selecting Save Readings opens the Export action window from which a path and file name can be selected or created The number of readings exported is the number of read ings in memory Figure 6 8 at the time Export Readings is pressed which may not be the total reading count TRIGger COUNt x SAMPle COUNt Exporting readings clears reading memory and re starts the trend chart on the next trig ger received 53220A 53230A User s Guide 227 6 228 53220A 53230A Math Graphing and Data Logging Zoom amp Markers Window Options Readings Kis
164. ime between readings in CONTi nous mode Input Signal Stability The stability of the input signal frequency during the mea surement can impact the counter s observable continuous gap free characteristic As previously mentioned all readings in the current reading count are based on the number of edges required to complete the first reading which in turn are based on the specified or default gate time If during measurements before the sample count is reached the input frequency changes the counter will modulate the gate time of subsequent readings according to the frequency The edge count per reading as originally determined remains fixed and the readings gap free CONTinuous mode is available on channels and 2 and optional channel 3 of the 53230A only and only for frequency and average period measurements Following a reset RST or instrument preset SYSTem PREset or Preset key the measurement mode is set to AUTO CONFigure and MEASure do not change the mode 53220A 53230A User s Guide 73 3 53220A 53230A Measurements Setting the Measurement Time Out 74 Store Battery g Recall n Option TimeBase PhaseMeas Time Out Settings 4 Auto Settings Time Out Meas Off On ALL The measurement time out is the time allowed for each measurement to complete If a measurement does not complete before the time out expires 9 91E37 not a number is returned and the display indication is
165. ing 748 Calibration memory written to the counter s internal flash memory write failure Run the self test to verify counter operation and repeat the calibration procedure 750 Calibration data not restored Following repair calibration data was not restored as prompted from the front panel Self Test Errors A failure occurred during the auto calibration por 901 Self Test failed tion of the self test Repeat the self test If the auto calibration failure auto calibration failure remains there is an issue with the instrument hardware Contact Keysight 286 53220A 53230A User s Guide 53220A 53230A Error Messages Reset the instrument clock using the Utility gt 903 Self Test failed System Setup gt Date Time keys or using the real time clock setting lost SYSTem TIME or SYSTEM DATE commands Re run the self test Self Test failed 904 main CPU error accessing boot environment Self Test failed Verify and if necessary install the latest firmware ko failed d FPGA revisi ailed to rea GA revision update and re run the self test If the fallure Self Test failed occurs with the latest firmware revision installed 906 FPGA revision is less than contact Keysight expected Self Test failed 907 PIC communication failure 908 Self Test failed These self tests perform a communication test to battery test failed detect the presence of the battery GPIB
166. ing marker s location in reading count Mkr 1 101 099 689 89k Reading 5628 Frequency Mkr 2 101 099 688 44k Reading 5662 Channel 1 Span number of readings between Span 1 442 113 440 1m Span 34 Count 5750 t marker locations Y Max Trend Window position window for marker zoom 100 points and pan adjustment the decimal position i e 1000 s 100 s 10 s 1 s highlighted by the arrow keys sets the amount of movement coarse fine for each tick of the rotary knob 5 668 Marker1 ELOA LockMrkrs Zoom Off On G Figure 6 8 Trend Chart Display Format without decimation 53220A 53230A User s Guide 53220A 53230A Math Graphing and DataLogging 6 Viewing Trend Charts View o Digits 2 p lt Graph 5 Math 8 Data D At power on or following a reset RST or instrument preset Preset numeric data is Trend Histogram n Chart 1 0 displayed The display can be changed to a trend chart by changing the display mode using the command DISPlay WINDow MODE NUMeric HISTogram TCHart DISPlay WINDow MODE query form The display mode TCHart is the only trend chart parameter that can be set program matically i e using SCPI commands All other trend chart parameters are set using the front panel Pressing the Graph key followed by the Trend Chart softkey starts the trend chart from the front panel Trend charts correspond to all reading
167. ing the instrument firmware KEYSIGHT TECHNOLOGIES 2 53220A 53230A Software Installation and Interface Configuration Software Requirements 36 The environments available to program the 53220A 53230A are dependent upon the IO libraries and drivers installed The IO software included with the 53220A 53230A is contained on the following CD e Keysight Automation Ready CD Keysight IO Libraries Suite The IVI C and IVI COM drivers for the instrument can be found on the web at www keysight com find 53220A or www keysight com find 53230A Table 2 1 summarizes the environments IO driver recommendations and the location media where specific drivers and libraries can be found Table 2 1 53220A 53230A Development Environments and Drivers Interface Development Environment 10 Driver Recommendations LAN Web enabled instrument interface Java enabled Web browser gt SCPI Command Interface window available from www java com LAN GPIB USB Keysight Connection Expert gt Keysight IO Libraries CD Interactive IO window LAN GPIB USB Microsoft Visual Studio VISA Keysight IO Libraries CD gt Visual C IVI C Web LAN GPIB USB Microsoft Visual Studio VISA COM Keysight IO Libraries gt Visual Basic IVI COM Web LAN GPIB USB Microsoft Visual Studio NET IVI COM Web gt C C Visual Basic LAN GPIB USB Keysight VEE IVI COM Web LAN GPIB USB National Ins
168. ion path is a folder name is the name of an existing folder Fil The name specified when creating a file or folder 257 ile name error E N inant flash th file or folder already exists eady exists in internal flash memory or on the USB device File name error The convention cannot be used to indicate the 257 relative path not allowed parent folder oo File name error The folder presently specified as the default cur 7 folder is default folder rent folder MMEMory CDIRectory cannot be deleted 257 File name error The folder or file operation specified does not path name missing include a valid path name The drive name is missing or is invalid in the path File name error en 257 drive name missing or specified Valid drive names are INT internal not recognized flash memory and USB external USB memory device 257 File name error The folder or file operation requested cannot be access denied performed on a protected of system file 53220A 53230A User s Guide 279 A 280 53220A 53230A Error Messages File name error The file uploaded to the counter is greater than 257 file too large 1 GByte When deleting a folder from an I O remote inter 257 File name error face the folder must be empty no sub folders or folder not empty files Un empty folders CAN be deleted from the front panel 257 File name error Depending on the memory operation and fi
169. ions performed regardless of any math operations enabled A reset RST instrument preset SYSTem PRI 53220A 53230A User s Guide ESet or changing the measurement 193 6 194 53220A 53230A Math Graphing and Data Logging function disables the CALCulatel subsystem Smoothing Data View i Data L Log E f Fast Smoothing Response Off On Fast Slow Medium Measurements can be smoothed and scaled prior to performing math operations on the incoming data To reduce random noise a moving average boxcar filter can be inserted into the data path Figure 6 1 To enable the filter and specify the number of readings subset to average the following commands are used CALCulate 1 SMOothing STATe OFF ON CALCulate 1 SMOothing STATe query form CALCulate 1 SMOothing RESPonse SLOW MEDium FAST CALCulate 1 SMOothing RESPonse query form ON enables the moving average filter placing it in the data path OFF disables the filter A reset RST or instrument preset SYSTem PRESet disables the filter 53220A 53230A User s Guide 53220A 53230A Math Graphing and DataLogging 6 The number of readings to average is specified as SLOW 100 readings with 100 ppm change required to reset filter MEDium 50 readings with 300 ppm change required to reset filter FAST 10 readings with 1000 ppm change required to reset filter
170. ith the command SRE lt enable gt SRE query form enable decimal value corresponding to the binary weighted sum of the bits in the register For example to enable the bit representing the Questionable Data Register Group SRE 8 Chapter 7 and Product Reference CD p n 53220 13601 contain examples using the STATus subsystem 53220A 53230A User s Guide 273 8 Instrument Status 274 53220A 53230A User s Guide Keysight 53220A 53230A 350 MHz Universal Counter Timer User s Guide Appendix A 53220A 53230A Error Messages Appendix A contains a description of the error messages associated with the 53220A 53230A counter KEYSIGHT TECHNOLOGIES A 53220A 53230A Error Messages Table A 1 53220A 53230A Error Message Descriptions Code Message Description Command Errors 100 Coinmand Back Generic syntax error a Command Error as has occurred 101 Invalid character An invalid character is present in the command s header or in a parameter An unrecognized misspelled command was 102 Syntax error received or separator between parameters is missing 103 Invalid separator An invalid separator e g something other than a comma space or semicolon was received The wrong data type number character string 104 Data type error expression was used when specifying a parame ter 108 Parameter not allowed More parameters were received than expected for the
171. l is counter channel 1 2 or 3 specified as 1 2 or 3 Frequency Measurement Examples using MEASure measure 20 MHz signal with 0 1 Hz resolution RST reset to start from known state MEAS FREQ 20E6 0 1 1 using CONFigure measure 20 MHz signal with 0 1 Hz resolution take 10 readings RST reset to start from known state CONF FREQ 20E6 0 1 1 SAMP COUN 10 take 10 readings READ Notes 1 See Chapter 5 for information on triggering and number of readings per trigger sam ple count 53220A 53230A User s Guide 53220A 53230A Measurements 3 Frequency Ratio A frequency ratio measurement is the measurement of two signals in which one signal generally serves as a reference Figure 3 3 The signals can be different wave shapes and applied to any 2 channel combination on the counter numerator channel f denominator channel f2 Figure 3 3 Ratio of Two Input Signal Measurements The commands used to make frequency ratio measurements are MEASure FREQuency RATio lt expected gt MINimum MAXimum DEFault lt resolution gt MINimum MAXimum DEFault lt channel_ pair gt CONFigure FREQuency RATio lt expected gt MINimum MAXi mum DEFault lt resolution gt MINimum MAXimum DEFault lt channel_pair gt expected is the expected ratio of the two input signals resolution is the desired resolution of the ratio measurement The parameter ranges
172. lay Readings In terms of Time the data logging duration is specified in hh mm ss format The value is set using the rotary knob and arrow keys or using the Shift ed numeric keys By highlighting specific digits in the time window greater resolution i e minutes and seconds of the logging time can be specified The maximum data logging period is 99 00 00 The reading limit however is 1 000 000 readings which may occur before the time duration is reached In terms of Readings data logging continues until the specified number of readings are complete The reading count is set using the rotary knob and arrow keys or using the Shift ed numeric keys A maximum of 1 000 000 readings can be specified For the Time Stamp measurement function only reading duration is available Setting a Start Delay DataLog hh mm ss 0 09 00 File Start Duration Set R Select ESA Readings lt Count thy When required a delay can be set between the time the Run key is pressed and the start of data logging The start delay is specified in hh mm ss format and is set using the rotary knob and arrow keys or using the Shift ed numeric keys By highlighting spe cific digits in the delay window greater resolution i e minutes and seconds of the delay time can be specified The maximum delay setting is 99 00 00 53220A 53230A User s Guide 233 6 234 53220A 53230A Math Graphing and Data Logging Starting the Data Log
173. ld in the negative falling direction and again in the positive rising direc tion defines the negative duty cycle To specify a threshold level from 10 to 90 of the peak to peak input voltage use a numeric value with no suffix or with the suffix PCT e g 30 or 30 PCT To specify a threshold level in absolute voltage within the ranges 5 125V range 5 125V to 5 125V 51 25V range 51 25V to 51 25V use a numeric value with the V or MV millivolt suffix 100 MV or 1V spaces allowed If reference is omitted or specified in percent auto leveling is enabled If specified in absolute voltage auto leveling is disabled channel is counter channel 1 or 2 specified as 1 or 2 53220A 53230A User s Guide 101 3 102 53220A 53230A Measurements Positive and Negative Duty Cycle Measurement Examples using MEASure measure the positive duty cycle at a 50 OV reference RST reset to start from known state MEAS PDUT 50 1 using CONFigure measure the positive duty cycle at a 1 0V reference RST reset to start from known state CONF PDUT 1 0V 1 INP COUP DC set DC coupling INP IMP 50 set input impedance to 50 ohm READ using CONFigure measure the negative duty cycle at a 50 0V reference RST reset to start from known state CONF NDUT 50 PCT 1 TRIG SOUR EXT set an external trigger source INIT Notes 1 The refe
174. le type unknown file extension valid file extensions are csv dat sta and prf Device Specific Errors At power on the firmware is unable to obtain 310 System Error information from the instrument s non volatile internal software error memory to complete initialization Cycle power again Contact Keysight if the error remains For system errors related to erasing reading or writing calibration data verify that the instrument has the latest firmware revision installed Firm System Error eet 310 failed to erase calibration data e updates can be located beginning at the in PIC EEProm Technical Support tab at www keysight com find 53220A or www keysight com find 53230A If the error condi tion remains contact Keysight For system errors related to erasing reading or writing system information verify that the instru ment has the latest firmware revision installed System Error i ne 310 failed to erase system infor Firmware updates can be located beginning at the mation in PIC EEProm Technical Support tab at www keysight com find 53220A or www keysight com find 53230A If the error condi tion remains contact Keysight I2C related errors if they occur will occur most an System Error se jati boot up g power is aes If this 12C Comms Failure ype of error occurs cycle power again e error remains contact Keysight with a complete descrip tion of the error message A g The instrument was unable to reference ca
175. libra Calibration memory lost f 313 tion data in non volatile memory Perform a recali memory corruption detected bration 53220A 53230A User s Guide 53220A 53230A Error Messages Calibration memory lost The instrument s calibration data has been erased 313 due to firmware revision following a instrument firmware update Recali change bration of the instrument is required The instrument state saved by the SAV com 314 Save recall memory lost z memory corruption detected mand in non volatile flash memory has been lost Save recall memory lost The instrument state saved by the SAV com 314 due to firmware revision mand in non volatile flash memory has been lost change due to a firmware update F _ User preference settings such as I O settings the 315 Configuration memory lost memory corruption detected reference oscillator setting measurement time out setting have been lost z _ User preference settings such as I O settings the Configuration memory lost i 315 due to firmware revision reference oscillator setting measurement time change out setting have been lost due to a firmware update 330 Self test failed See the appended message for more information 350 Error queue overflow An error has occurred however the instrument error queue is full and the error was not recorded Query Errors 410 Query INTERRUPTE
176. list of USB configured instruments Figure 2 4 The USB address can be read from the front panel as follows 53220A 53230A User s Guide 53220A 53230A Software Installation and Interface Configuration 2 Utility 6 Store 10 Gal Recall Config AutoCal g iit i Instr System Battery 4 Setup 4 etup Option a LAN LAN LAN f USB GPIB Off On Settings Reset Settings Settings ae po The USB Address String When programming the 53220A 53230A over USB the instrument s USB address is included in the address string as follows USB0 2391 1287 0123456789 0 INSTR To simplify addressing during programming a VISA alias can be assigned and used in place of the complete address To assign an alias from Connection Expert right click on the default alias name and then select Change Properties Enter the alias and then select OK Figure 2 6 53220A 53230A User s Guide 51 2 52 53220A 53230A Software Installation and Interface Configuration VISA Alias Properties Set configurable properties for this VISA alias VISA alias 53230A_Counter VISA address UsB0 0x0957 0 1 907 U500000050 0 OK Cancel Help Figure 2 6 Setting a VISA Alias for the USB Address String Disabling the USB Interface The USB interface can be disabled from the front panel by selecting I O Config fol lowed by USB Settings and then USB Off When
177. ll time measurements are MEASure RTIMe lt lower_ref gt MINimum MAXimum DEFault lt upper_ref gt MINimum MAXimum DEFault lt channel gt CONFigure RTIMe lt lower_ref gt MINimum MAXimum DEFault lt upper_ref gt MINimum MAXimum DEFault lt channel gt 94 53220A 53230A User s Guide 53220A 53230A Measurements 3 MEASure FTIMe lt lower_ref gt MINimum MAXimum DEFault lt upper_ref gt MINimum MAXimum DEFault lt channel gt CONFigure FTIMe lt lower_ref gt MINimum MAXimum DEFault lt upper_ref gt MINimum MAXimum DEFault lt channel gt lower_ref and upper_ref specify the input signal reference level either in terms of percent of peak to peak voltage or in absolute voltage To specify rise or fall time percentage levels from 10 to 90 use a numeric value with no suffix or with the suf fix PCT e g 30 or 30 PCT To specify rise or fall time levels in absolute voltage within the ranges 5 125V range 5 125V to 5 125V 51 25V range 51 25V to 51 25V use a numeric value with the V or MV millivolt suffix 100 MV or 1V spaces allowed If either lower_ref or upper_ref is omitted or specified in percent auto leveling is enabled If specified in absolute voltage auto leveling is disabled channel is counter channel or 2 specified as 1 or 2 Rise and Fall Time Measurement Examples using MEASure measure rise time using 20 and 80 referenc
178. low l Slow sets the minimum frequency for auto leveling at 50 Hz Fast sets the minimum frequency for auto leveling at 10 kHz System Battery etup Option Refer to Threshold Level and Sensitivity in Chapter 4 for additional information on using auto level 53220A 53230A User s Guide Preparation for Use 1 Keysight 53100 Series Counter Emulation Mode System Preset Store 1 0 Cal Instr System a lt _ _ Utility 4 Recall 4 Config jAutoCal ri Setup ils Setup Option 6 0 Help ajo m y _ User Date 7 Settings Time E Help Lang Number Beeper Display SCPI Lang l J English Format Off On Options 532304 a 53132A 53230A The 53220A 53230A s emulation mode enables the Keysight 53132A SCPI command set to be used with the counter The emulation mode can also be enabled using the command SYSTem LANGuage lt language gt SYSTem LANGuage query form Language selects the SCPI command set used Specifying 53132A enables the emulation mode Specifying either 53220A or 53230A disables the mode With 53100 series compatibility mode selected all programming is through the counter s remote interface LAN USB GPIB The counter display responds according to the remote commands received Pressing any front panel key while in 53100 compatibility mode returns the counter to 53200 series mode as prompted Setting or changing
179. lso provides noise rejection Additional noise rejection for frequencies in this range is then obtained through INPut NREJection ON Time Interval Errors Using noise rejection with time interval measurements results in time interval errors due to errors in setting the threshold level and the effects of hystere sis on the trigger and reset points Figure 4 4 These errors are dependent on the input signal slew rate at each trigger point Noise Rejection Example period measurement of expected 10 MHz signal use channel 1 CONF PER 0 1E 6 001 1 NP IMP 1 0E6 set impedance to 1 Mohm INP RANG 50 set range to 50 INP COUP AC set AC coupling INP LEV 3 set 3V threshold level absolute INP NREJ ON enable noise rejection Threshold Slope Coupling Impedance Bw Limit Probe 2 3 i M2 502 5V 50V Ott 100k ae c9 None 10 1 Channel Setup C Auto Level if ETE Slope I NoiseRej Off On Pos Neg Off On The slope edge of the input signal on which the threshold level occurs is specified with the command INPut 1 2 SLOPe 1 2 POSitive NEGative INPut 1 2 SLOPe 1 2 query form POSitive the trigger point occurs on the positive rising edge The reset point occurs on the negative falling edge Figure 4 4 138 53220A 53230A User s Guide 53220A 53230A Input Signal Conditioning 4 NEGat ive the trigger point occurs on the negative edge with
180. m On enables the filter OFF disables the filter Figure 4 3 shows the effects on the instrument s measurable frequency range when the filter is enabled 100 kHz 53220A 53230A User s Guide 127 4 128 53220A 53230A Input Signal Conditioning Figure 4 3 Measureable Frequency Range with Bandwidth Filter Enabled From the figure e DC coupling 1 mHz 100 kHz e AC coupling 10 Hz 100 kHz CONFigure and MEASure do not change the filter setting Following a reset RST or front panel preset Preset the low pass filter is disabled off Threshold Level and Sensitivity Coupling Impedance Range BW Limit Probe lt lt 2 l 3 Channel Setup AC DC MA 500 BV Sov Setup off 100k None 10 1 Auto Level MESO Slope NoiseRej Off On Pos Neg Off On The threshold level is the trigger input level at which the counter begins the signal count i e measurement This level is the center of the hysteresis band the band which represents counter sensitivity For a count to occur the signal must cross the upper and lower limits of the band in opposite directions polarities Figure 4 4 identifies these characteristics and conditions of the input signal The dynamic range of the input signal is indicated on the front panel 53220A 53230A User s Guide 53220A 53230A Input Signal Conditioning 4 INPut 1 2 LEVel 1 2 SYSTem ALEVel FREQuency INPut 1 2 LEVel 1 2 AUTO
181. me stamp rate INIT initiate and take readings WAL wait for readings to complete transfer readings from reading memory to a file in the root folder on the USB storage device MMEM STOR DATA RDG_STORE USB ts_data csv 53220A 53230A User s Guide 53220A 53230A Measurements 3 Notes 1 In the example 200 time stamp readings are taken at a 1 MHz rate and stored in the counter s reading memory The readings are then stored on a USB drive connected to the counter s front panel host port as comma separated values CSV in one measure ment per line ASCII format 2 The data returned with time stamp measurements include a scale factor followed by the time stamp values in seconds themselves The scale factor which is the number of input cycles per time stamp increases as the frequency of the input signal becomes greater than the time stamp rate specified Time stamp values will either be the signal period itself scale factor 1 for input frequencies lt the time stamp rate or the signal period multiplied by the scale factor For example a 10 MHz input signal and a 1 MHz time stamp rate might have a scale factor of 11 The data for this measurement would be represented as 0000000E 01 scale factor 11 cycles per time stamp 0077637E 06 1st time stamp signal period x scale factor L 09963867E 06 2nd time stamp signal period x scale factor 0005859E 06 1 09999023E 06 L 09988770E 06 0017
182. mmand Instrument Channels Frequency CONFigure FREQuency 53220A 53230A 1 2 3 one MEASure FREQuency Freq CONFigure FREQuency RATio Frequency Ratio Period J MEASure FREQuency RATio 53220A 53230A 1 2 3 gt CONFigure PERiod F Period ASS DER GIS 53220A 53230A 1 2 3 CONFigure SPERiod F SPeriod EAS aunts ais 53220A 53230A 1 2 CONFigure FREQuency BURSt 3 Burst Carrier Frequenc patie Feriog MEASure FREQuency BURSt 99230A Opt 150 Sy CONFigure FREQuency PRF 3 F Rube RepettioniFreguency MEASure FREQuency PRF 53230A Opt 150 A CONFigure FREQuency PRI 3 F Pulse Repsutondntenval MEASure FREQuency PRI 53230A Opt 150 Burst Positive width CONFigure PWIDth BURSt err 3 on time Period MEASure PWIDth BURSt Opt 150 Burst Negative width z cae CONFigure NWIDth BURSt PEA 3 Feriog MEASure NWIDth BURSt Opt 150 64 53220A 53230A User s Guide 53220A 53230A Measurements 3 Table 3 1 Keysight 53220A 53230A Measurement Summary Cont d Measurement Key Command Instrument Channels CONFigure TINTerval Time Interval aie Mae 53220A 53230A 1 2 CONFigure RTIMe Ti Rise Time rye ga bis 53220A 53230A 1 2 CONFigure FTIMe Ti Fall Time EA ee 53220A 53230A 1 2 3 CONFigure NDUTycycle Negative Duty Cycle E 53220A 53230A 1 2 Positive Duty Cycle A renee 53220A 53230A 1 2 Negative Pulse Width Time CONFigure NWIDth 53220A 53230A
183. mpensated crystal oscillator TCXO and Option 010 Ultra High Stability oven controlled crystal oscillator OCXO references Reference Oscillator Source TimeBase Ext Ref Standby Auto 1 10 MHz Off On Internal External Auto The reference oscillator time base is either the counter s internal oscillator or the inter nal oscillator tuned to an external reference The source commands are SENSe ROSCillator SOURce INTernal EXTernal SENSe ROSCillator SOURce query form 66 53220A 53230A User s Guide 53220A 53230A Measurements 3 SENSe ROSCillator SOURce AUTO OFF ON SENSe ROSCillator SOURce AUTO query form INTernal selects the counter s internal 10 MHz oscillator The signal is a 0 5 Vrms into 50Q sine wave The internal oscillator signal is also present on the coun ter s rear panel Int Ref Out connector EXTernal selects an external reference signal applied to the rear panel Ext Ref In connector The signal must be e 1MHz 5 MHz or 10 MHz e 100 mVrms to 2 5 Vrms e sine wave and the frequency must be specified by the SENSe ROSCillator EXTer nal FREQuency command AUTO ON enables automatic selection of the reference oscillator source Ifa 1 5 or 10 MHz signal is present on the counter s Ext Ref In connector source EXTernal is set If a valid signal is not present or is lost the source automatically switches to INTernal Note
184. mputer continue installation of the Keysight IO Libraries by installing Keysight VISA in side by side mode More information on side by side operation can be found in IO Libraries Suite Help available after installation is complete under Using Keysight s and Other Vendors Products Together 53220A 53230A User s Guide 43 2 53220A 53230A Software Installation and Interface Configuration After the IO libraries have been installed close the installation wizard If applicable continue with instrument driver installation as described below Otherwise continue with the Adding Instruments to the PC Interface section of this chapter Installing Instrument Drivers Interchangeable Virtual Instrument IVI drivers when available are used for program ming the 53220A 53230A with Keysight VEE with National Instruments LabVIEW or in Microsoft development environments Install the appropriate driver based on the development environment you are using Table 2 1 Accept all default directories specified during installation if prompted Setup type Typical is applicable for most users Installing the Keysight IO Libraries installs the Interchangeable Virtual Instrument IVI Shared Components The IVI Shared Components are required before the IVI drivers e g VI COM IVI C can be installed Adding Instruments to the PC Interface During installation of the Keysight IO Libraries the IO interfaces LAN USB GPIB de
185. n Store 2 Press the Browse soft key to display the File System window Use the front panel knob to highlight the root directory or a folder in the counter s internal flash memory Internal or on the USB drive External If folders are not visible press Browse again to view the directory structure Press the Select soft key to select the directory or folder 53220A 53230A User s Guide Formats and Data Flow 7 3 Enter the file name The knob scrolls through A Z upper case a z lower case numbers 0 9 selected keyboard characters decimal point underscore _ and space Once the desired character is set press the right arrow gt key under the knob to move to the next position 4 Repeat until the file name is complete Use the left arrow key lt to backspace and change a character Changing the character to a space erases the character 5 Press STORE STATE to store the state under the file name defined A sta extension is added to the file name 6 States state files are recalled by pressing the RECALL STATE soft key highlighting the file name and pressing Select The state is recalled immediately Storing User Preferences Non volatile I O settings and user preferences can be stored and recalled using the com mands MMEMory STORe PREFerences lt file gt MMEMory LOAD PREFerences lt file gt lt file gt is created during execution of the STORe command T
186. nced Gate source ADVanced enables extended control of the gate signal through the coun ter s SENSe GATE commands see Advanced Gate Control later in this chapter The following example shows configuration of a time interval measurement beginning with high level configuration of the counter setting up the start and stop events and changing the polarity and gate source configure the counter for a time interval measurement using external gating to start the measurement CONF TINT 1 2 time int between ch1 ch2 INP1 LEV1 2 set start level event 53220A 53230A User s Guide 171 5 172 Triggering and Gating INP1 SLOP1 POS set start event polarity INP2 LEV1 2 set stop level event INP2 SLOP1 NEG set stop event polarity SENS TINT GATE POL POS set gate signal polarity SENS TINT GATE SOUR EXT external gate source Enabling Gate Signals on the Gate In Out BNC 1J0 000ms Gate Src Gate Out Polarity Timed Off On Norm Iny Back Local For timing and synchronization with other instruments gate signals from sources Time internal IMMediate internal and INPut 1 INPut2 Chan 1 and Chan 2 softkeys can be routed to the rear panel Gate In Out connector and assigned a polarity using the commands OUTPut STATe OFF ON ouTPut STATe query form OUTPut POLarity NORMal INVerted OUTPut POLarity query form ON enables Gate
187. nd CALCulate 1 LIMit STATe OFF ON CALCulate 1 LIMit STATe query form ON enables limit checking OFF disables bypasses limit checking Enabling limit checking enables both lower and upper limit boundaries Setting Lower and Upper Limits Lower and upper limits are set using the commands CALCulate 1 LIMit LOWer DATA lt value gt MINimum MAXimum DEFault CALCulate 1 LIMit LOWer DATA MINimum MAXimum DEFault query form CALCulate 1 LIMit UPPer DATA lt value gt MINimum MAXimum DEFault CALCulate 1 LIMit UPPer DATA MINimum MAXimum DEFault query form The lower limit and upper limit value ranges are 1 0E 15to 1 0E 15 0 0 1 0E 15to1 0E 15 The default limits and the limits set following a reset RST or instrument preset SYSTem PRESet are 0 0 When using limits both a lower limit and an upper limit must be specified Any of the following steps will prevent a settings conflict error e g lower limit greater than upper limit due to the order in which limits are set e setting the upper limit first 53220A 53230A User s Guide 209 6 210 53220A 53230A Math Graphing and Data Logging e setting both limits on the same line programmatically e enabling limit testing after the limits are set To programmatically determine if a reading or readings outside the limit boundaries has occurred the command STATus QUEStionable EVENt is u
188. nd Gating 143 Settings Summary 144 Trigger and Gate Time Line 145 Trigger and Gate Cycle 145 System Trigger 148 Wait For Trigger and Triggered States 154 Measurement Gate 156 Gate Set Up 156 Frequency Measurements 158 Totalizing 165 Time Interval Measurements 170 Enabling Gate Signals on the Gate In Out BNC 172 Burst Carrier Frequency Measurements 173 Advanced Gate Control Gate Start 177 Advanced Gate Control Gate Stop Hold Off and Gate Stop 182 Automatic Gate Extension 189 6 53220A 53230A Math Graphing and Data Logging 191 Math Functions 192 Enabling the CALCulatel Subsystem 193 Smoothing Data 194 Scaling Functions 195 Statistics 203 Limit Checking 208 Histograms 211 Viewing Histograms 212 Histogram Configuration 213 53220A 53230A User s Guide Contents Trend Charts 224 Viewing Trend Charts 225 Data Logging 230 Graphics Functions and Reading Memory 236 7 Formats and Data Flow 237 Reading Formats and Data Flow 238 Specifying a Format 239 Setting the Block Transfer Byte Order 239 Data Flow 240 Counter File System 247 Creating Folders and Files in Flash Memory and on the USB Drive 249 User Defined Power On States 258 Managing Folders and Files 261 8 Instrument Status 267 Keysight 53220A 53230A Status System 269 Questionable Data Register Group 269 Standard Operation Register Group 270 Standard Event Register 272 Status Byte Register 273 A 53220A 53230A Error Messages 275 Index 289 5
189. nd gate time CONFigure FREQuency lt expected value gt lt resolution gt lt channel gt TRIGger COUNt 1 SAMPle COUNt lt count gt SENSe FREQuency MODE CONTinuous SENSe FREQuency GATE SOURce TIME gap free SENSe FREQuency GATE TIME 1 stop edge of previous reading is start edge of next reading gap free Reading 1 Reading 2 gug Reading n stop edges required for reading subsequent readings based on number determined by gate time of edges for first reading lt gate time 1s gt lt gate time 1s gt lt sate time 1s gt gate open gate closed Gate In Out BNC a T firmware controlled will see fluctuations OUTput STATe ON on the output BNC but readings are continuous gap free OUTput POLarity NORMal Figure 3 1 53230A Continuous Gap Free Measurement Sequence 72 53220A 53230A User s Guide 53220A 53230A Measurements 3 Gate Time Edge Count The specified or default gate time and the input signal frequency determine the number of edges required to produce the first reading in the sample count All subsequent readings in the count are based on the same number of edges used for the first reading Gate time is per reading Start Stop Edge The edge that ends the gate time of the previous reading is the same edge which starts the gate time edge count for the next reading Because the same edge is used as a start stop edge there is no gap lag dead t
190. ndard Operation Register Group also monitors the instrument state The Event Register is read with the command STATus OPERation EVENt Unlike the Condition Register the bits in the Event Register remain set following the state that occurred The bits are cleared by reading the register Enable Register The Standard Operation Register Group Enable Register specifies which bits in the Event register can generate a summary bit which is subsequently used to generate a service request Bits within the operational event register are enabled with the command STATus OPERation ENABle lt enable gt STATus OPERation ENABle query form enable decimal value corresponding to the binary weighted sum of the bits in the register For example to enable the bit monitoring low critical battery charge STAT OPER ENAB 4 53220A 53230A User s Guide 271 8 272 Instrument Status Standard Event Register The Standard Event Register monitors programming conditions including operation complete query errors device errors execution errors command execution errors power on state Reading the Standard Event Register The Standard Event Register is read with the command ESR Reading the register does not clear the bits The bits are cleared by sending CLS Enabling the Standard Event Register The Standard Event Enable register specifies which bits in the Standard Event Status register can generate a summary bit
191. ng a Folder Example The following example deletes a sub folder empty followed by its root folder create USB folder dut_2 and sub folder data2 MMEM MDIR USB dut_2 MMEM MDIR USB dut_2 data2 rcemove sub folder data2 then remove folder dut_2 MMEM RDIR USB dut2 data2 MMEM RDIR USB dut_2 Deleting Files Data and state files located on the instrument s internal flash drive or on a USB memory device Figure 7 2 are deleted using the command MMEMory DELete lt file gt The file format is drive path lt file_name gt drive is either INT internal flash memory or USB external memory device If the file deleted is not in the speci fied current directory path is an absolute folder path beginning with V and starting at the root folder The file name must include the file extension For example delete data file datal csv in USB folder dut_1 MMEM DEL USB dut_1 datal csv 53220A 53230A User s Guide 261 7 Formats and Data Flow State files saved in state locations 0 4 can also be deleted with the commands MEMory STATe DELete 0 1 2 3 4 MEMory STATe DELete ALL delete the contents of state location 2 MEM STAT DEL 2 delete the contents of all numeric state locations EM STAT DEL ALL Ke Deleting Folders and Files from the Front Panel System Preset 3 S l
192. ng the condition that occurred The bits are cleared by reading the register Enable Register The Enable register specifies which bits in the Event register can generate a summary bit which is subsequently used to generate a service request Bits within the Event Register are enabled with the command STATus QUEStionable ENABle lt enable gt STATus QUEStionable ENABle query form enable decimal value corresponding to the binary weighted sum of the bits in the register For example to enable the bit monitoring possible time base errors STAT QUES ENAB 1024 Standard Operation Register Group The counter s Standard Operation Register Group monitors operational condions within the counter These include calibration in progress battery operation battery charge status measurement in progress waiting for trigger internal reference oscillator in use remote interface lock and remote interface errors configuration change reading memory threshold reached 53220A 53230A User s Guide Instrument Status 8 Condition Register The Condition Register within the Standard Operation Register Group monitors current conditions regarding the operational state of the instrument The Condition Register is read with the command STATus OPERation CONDition Reading the register does not clear the bit s in the register The bit is cleared when the condition is removed Event Register The Event Register within the Sta
193. non volatile memory and is not changed after a reset RST or instrument pre set SYSTem PREset or Preset key External Reference Example The following example configures the counter to tune to an external reference if present and the expected external frequency is 10 MHz SENS ROSC SOUR AUTO ON tune to external ref if present SENS ROSC EXT FREQ 10E6 signal will be 10 MHz Detecting a Valid External Reference Signal ExtRef will appear in the top right corner of the display when a valid external refer ence is present If a valid frequency is not present or was not specified the message No valid external timebase is displayed The error is also logged in the error queue The presence of a valid external reference can be determined programmatically with the 53220A 53230A User s Guide 53220A 53230A Measurements 3 command SENSe ROSCillator EXTernal CHECk ONCE Prior to sending the command SENSe ROSCillator SOURce EXTernal and SENSe ROSCillator SOURce AUTO OFF must be set The following example checks for an external reference signal applied to the Ext Ref In connector SENS ROSC SOUR tq XT set source also disables automatic source selection SENS ROSC EXT CHEC ONCE check for valid signal SYST ERR read the error queue The error queue can be read from the front panel as follows Highlight the desired topic and press SELECT 1 View the l
194. non zero digit gt lt block length gt lt 8 bit data bytes gt using R DATA REMove lt non zero digit gt indicates the number of digits representing lt block length gt lt block length gt indicates the number of 8 bit data bytes which follow Format ASCTT is set following an instrument reset RST or front panel preset PRE 53220A 53230A User s Guide Formats and Data Flow 7 Set A line feed LF and End Or Identify EOI follow the last reading in both formats Specifying a Format Data formats can be specified during counter configuration as shown in the following segment CONF FREQ 1 0E6 FORM REAL 64 SAMP COUN 5 INIT FETC In this segment measurements initiated by INIT are stored in reading memory When FETC ed from memory to the output buffer the readings are converted to REAL for mat Setting the Block Transfer Byte Order Indefinite length and definite length REAL binary data transfers Table 7 1 associ ated with the READ FETCh R and DATA REMove commands have a default byte order of NORMa1 in which the most significant byte MSB is sent first big endian byte order The command used to specify or change the byte order is FORMat BORDer NORMal SWAPped FORMat BORDer query form With the SWAPped byte order the least significant byte of each data point reading is sent first little endian byte order Most PCs use the swapped little endian
195. nt The different conditions are summarized in the table below The off status is determined by the presence of OXCO Option 010 Table 1 2 Power On LED Status and Color Instrument Off inetnumant OCXO w OCXO wi No Power Source On Standby Standby ocxo enabled disabled AC Line green amber off off Opt 300 Battery green amber off off enabled blinking Opt 300 Battery off off off off disabled Standby Power The power modes of the 53220A 53230A counter are on off and standby In standby mode with the instrument connected to line voltage standby power is supplied to maintain the temperature within the ultra high stability oven controlled crystal oscillator Option 010 Battery Option 300 itself supplies standby power for the OCXO when the 53220A 53230A is not connected to line voltage Refer to Standby Power to the Reference Oscillator in Chapter 3 for information on enabling disabling standby power 53220A 53230A User s Guide 19 1 20 Preparation for Use Cycling Power and Counter Accuracy With standby power enabled repeated power cycling line or battery does not affect the standard or ultra high stability OCXO Battery Operation WARNING During battery operation the maximum measured signal supplied by the user is 42V Also connect the instrument chassis to earth ground during battery operation to minimize shock hazard
196. nt cycle INITiate IMMediate REA STATe ON D MEASure e sending anew SCPI command or changing a current SCPI parameter e areset or instrument preset RST SYSTem PRESet These steps also clear all readings in reading memory To clear statistics without clear ing reading memory the following command is used CALCulate 1 AVERage CLEar IMMediate Limit Checking Limit checking enables counter measurements to be compared on a reading by reading 53220A 53230A User s Guide 207 6 53220A 53230A Math Graphing and Data Logging basis to a lower limit and upper limit Limits that are exceeded are reported in the counter s Questionable Data register bits 11 and 12 Register definitions and are contained in Chapter 8 When enabled limit checking appears on the counter display as shown in Figure 6 4 CALCulate1 STATe ON CH 1 Frequency 24 999 923 267m Limits e PASS Vpp 7 39 V Vmin 3 67 V Vmax 3 72 V All Math Smoothing Null Statistics Limits TI Off On Scale j g l Data 0 2699 922 997 563 81MHz Math On CALCulate1 LIMit STATe ON Limits Lower Clear Off On eel Condition CALCulate1 LIMit UPPer CAE GUlatS ECIMECI Ear CALCulate1 LIMit LOWer Figure 6 4 53220A 53230A Limit Checking 208 53220A 53230A User s Guide 53220A 53230A Math Graphing and DataLogging 6 Enabling Limit Checking Limit checking is enabled with the comma
197. nts is CONFigure TOTalize CONTinuous lt channel gt channel is counter channel 1 or 2 specified as 1 or 2 There is no equiva lent MEASure command for continuous totalizing measurements The command SENSe TOTalize DATA can be used during continuous totalizing or with long gate times to read the current count 53220A 53230A User s Guide 53220A 53230A Measurements 3 Sending the command ABORt aborts the measurement Continuous Totalize Measurement set up continuous totalizing query the count after 10 seconds abort the measurement after 10 additional seconds RST reset the counter to start from a known state CONF TOT CONT 1 INP1 LEV 1 0 set level threshold to 1V INP1 SLOP NEG totalize negativ dges NIT start the measurement walt 10 seconds SENS TOT DATA query count after 10 seconds walt 10 seconds SENS TOT DATA query count after 20 seconds ABOR stop measurement FETC retrieve final count Notes 1 Pressing Clear Count on the front panel will not clear or abort continuous measure ments started from the LAN USB or GPIB interface Pressing the Back Local key however will clear the count when the instrument transfers from remote to local mode 2 Continuous totalizing must be aborted stopped before the count can be retrieved from the output buffer using the FETCh DATA LAST DATA REMove
198. o and average period measurements The measurement mode is set using the command SENSe FREQuency MODE AUTO RECiprocal CONTinuous SENSe FREQuency MODE query form AUTO configures the counter to make resolution enhanced measurements when possi ble or reciprocal measurements otherwise depending on input signal conditions Chan nel 3 wide mode burst frequency measurements PRF PRI are made using resolution enhanced AUTO mode only RECiprocal configures the counter for reciprocal only measurements In Reciprocal mode the period of the input signal is measured and all frequency readings are derived from are the reciprocal of the period measurement RECiprocal mode is not available on optional channel 3 CONTinuous configures the counter for continuous resolution enhanced gap free measurements These measurements are used by the counter s Allan Deviation feature 53220A 53230A User s Guide 71 3 53220A 53230A Measurements when estimating stability In CONTinuous mode a trigger count of 1 is the only value allowed and all samples readings per trigger are taken within a single hardware gate open gate close sequence and computed back to back There is no lag dead time between readings that otherwise occurs with the per sample gate open gate close sequence of the AUTO and RECipro cal modes Figure 3 1 and the following paragraphs describe continuous gap free measurements with an example one seco
199. o select a character The knob scrolls through A Z upper case a z lower case numbers 0 9 selected keyboard characters decimal point underscore _ and space Once the desired character is set press the right arrow gt key under the knob to move to the next position 3 Repeat until the folder name is complete Use the left arrow key lt to backspace and change a character Changing the character to a space erases the character Press Create Folder to create the folder 250 53220A 53230A User s Guide Formats and Data Flow 7 Specifying a Default Folder Designating a folder as the default current folder eliminates the need to specify an absolute path each time a sub folder or file is created or referenced The command MMEMory CDIRectory lt folder gt MMEMory CDIRectory query form selects folder as the current folder used by subsequent MMEMory subsystem com mands folder is of the form drive path see MMEMory DIRectory for drive path details For example an alternate way to create folders dut_1 and data1 is create folder dut_1 and select it as the current folder create sub folder datal MMEM MDIR INT dut_1 MMEM CDIR INT dut_1 MMEM MDIR datal When specifying a folder name the current folder is referenced If a current folder MMEM CDIR has not been specified and a drive name INT or USB is not included the default driv
200. ocation number from the counter s internal flash memory States saved using this method can also be specified for recall at power on sav 0 1 2 3 4 Saves the current instrument state in one of five 0 1 2 3 4 flash memory state locations State location 0 is a valid location however the instrument state at power down is automatically saved in location 0 and will overwrite any state saved there All parameters of the counter s state are saved with the exception of user prefer ence parameters such as those which configure the front panel display An example of the command is SAV 1 save the current state in state location 1 State locations 0 4 are represented by the following file names in the root directory of internal flash memory STATE _0O sta STATE _1 sta STATE 2 sta 53220A 53230A User s Guide Formats and Data Flow 7 STATE 3 sta STATE 4 sta Saved counter states are recalled using the command RCL 0 1 2 3 4 0 1 2 3 4 are the five state locations An example of the command is RCL 1 recall the configuration from state location 1 When recalling a state using RCL only the location number is specified When recall ing a numbered state location from the front panel the location file name is used e g STATE_1 sta See User Defined Power On States for more information Verifying a Recalled State Before a state is recalled its storage location can be que ried to dete
201. of the Keysight 53210A 53220A 53230A Product Reference CD 53220A 53230A User s Guide 145 5 Triggering and Gating System Trigger Idle state TRIGger SOURce Trigger Source TRIGger SLOPe Trigger Slope TRIGger DELay Trigger Delay TRIGger COUNt Trigger Count SAMPle COUNt Sample Count INITiate IMMediate READ Wait for trigger state MEASure triggers received TRIGger COUNt trigger received Triggered state readings AMPle COUN to gate cycle repeated for each reading in sample count from gate cycle Figure 5 2 Trigger and Gate Cycle Triggering 146 53220A 53230A User s Guide shown first sequentially from Triggered State set last programmatically S SENSe FREQuency GATE SOURce TIME SENSe TOTalize GATE SOURce SENSe TINTerval GATE SOURce IMMediate EXTernal INPut 4 INPut2 ADVanced SENSe GATE STARt SOURce Gate Start Source EXTernal SENSe GATE EXTernal SOURce External Gate Source C BN INPut 1 INPut2 SENSe GATE STARt SLOPe Gate Slope SENSe GATE STARtDELay SOURce Gate Delay SENSe GATE STARt DELay EVENts input channel SENSe GATE STARt DELay TIME not available with time interval IMMediate IMMediate delay disabled Gate Start open SENSe GATE STOP HOLDoff SOURce Gate Stop Hold Off SENSe GATE STOP HOLDoff EVENts input channel SENSe GATE STOP HOLDoff TIME SENSe GATE STOP SOURce Gate Stop Source EXTernal
202. of digits in Table 5 2 and select the corresponding gate time SENS FREQ GATE TIME 100e 3 set gate time 100 ms SENS FREQ GATE SOUR TIME set gate source As another example assume a measurement requiring 6 digit resolution of a 5 ns 200 MHz signal Recalling that Log1 expected value Log 9 resolution is approximately equal to digits of resolution the measurement can be configured as MEAS PER 5E 9 5E 15 1 per meas of 200 MHz signal A typical measurement using this configuration might return 5 00010899135045E 009 With the counter display registering 5 000 10nsec 6 digits Querying the gate time after sending this command returns SENS FREQ GATE TIME 1 00000000000000E 005 10 us no resolution enhancement Again using Table 5 2 if a resolution of 6 digits is required the corresponding gate time can be located and sent directly as 53220A 53230A User s Guide 161 5 Triggering and Gating SENS FREQ GATE TIME 10e 6 set gate time 10 us External Gate Sources 19 0 000ms Gate Src Timed Timed Ext Adv Chan 2 amp Back Gate sources EXTernal INPut 1 and INPut2 are external sources EXTer nal is the counter s rear panel Gate In Out BNC and INPut 1 INPut2 repre sented by softkeys Chan 1 and Chan 2 are the counter s channel 1 and channel 2 inputs Gate Out Off On NOTE OUTput STATe OFF must be set when usin
203. of the STORe command The parameter format is Tdrive path lt file_name gt drive is either INT internal flash memory or USB external memory device path is an absolute path and folder name If a folder is specified it must have been previously created see 53220A 53230A User s Guide 253 7 254 Formats and Data Flow MMEMory MDIRectory The combination of folder and file name cannot exceed 240 characters and cannot con tain the characters lt gt State files have a sta extension State File Example The following example shows the interaction between folders created from the front panel and state files created stored programmatically For this sequence folder SETUP_1 was created on the internal flash drive from the front panel It is then speci fied programmatically as the current folder and a state file is stored and recalled from that folder MMEM CDIR INT SETUP_1 specify as current folder configure instrument programmatically or from front panel MMEM STOR STAT test1 sta store the configuration recall the configuration state at later date even If power is cycled MMEM LOAD STAT INT SETUP_1 test1 sta load state Saving States from the Front Panel With the instrument configured as required the state is stored from the front panel as follows 1 Use the Utility key and soft keys indicated on the previous page to set file actio
204. ogging 6 Assigning Reading Units All Math Smoothing Null Off On Scale 1 J00 000 000 000 000 Hz Null Scale Function User Ref Val Off On Null RA RA Units CH 1 Frequency 1 000 035 944 Bms Vpp 8 04 V Vmin 4 00 V Vmax 4 04 V cpg Null ee ee Cor on MM For ease in identifying readings from the front panel a user defined units string can be assigned to any scale function The user string replaces the instrument assigned mea surement units Hz pct ppm The unit prefix u m k M remains The units string is displayed on the counter and defined using the commands CALCulate 1 SCALe UNIT STATe OFF ON CALCulate 1 SCALe UNIT STATe query form CALCulate 1 SCALe UNIT lt units gt CALCulate 1 SCALe UNIT query form ON displays user defined units on the front panel OFF turns off the user defined units 53220A 53230A User s Guide 201 6 202 53220A 53230A Math Graphing and Data Logging units are one to four characters Double quotes enclosing the string are included in the command The assigned units appear in the counter display only Following a reset RST or instrument preset SYSTem PRESet user defined units are disabled From the front panel units are entered by pressing the User Units softkey enabling the units On and using the rotary knob and arrows to enter and select the character posi
205. ogram Options Show Save Zoom amp Reset Log Off On j Count Readings j Markers Histogra a Number of AutoRange Lower Upper Set to Outer Bins A Bins Off On Bin A Bin Min Max Off On l The number of bins is specified with the command e oo CALCulate2 TRANsform HISTogram POINts lt value gt MINimum 53220A 53230A User s Guide MAXimum DEFault CALCulate2 TRANsform HISTogram POINts MINimum MAXimum DEFault query form value specifies the number of bins points between the lower and upper range val ues value can range from 10 to 1 000 Following a reset RST or instrument preset SYST PRESet the number of bins is set to 100 215 6 216 53220A 53230A Math Graphing and Data Logging Displaying the Outer Bins Two additional bins independent of the number specified are always included with the histogram The bins contain readings less than the lower range value and readings greater than the upper range value Figures 6 5 and 6 6 A number of readings greater than expected in either bin may indicate a drift in the measured quantity The bins are viewed using the Outer Bins softkey and the bin indices Figure 6 6 account for the bins whether they are displayed or not Bin Representation The softkey Histogram Options Show Zoom amp Reset Off On Count Readings Markers nN corresponds to the bin with the largest numb
206. ons and Tips 5 Screen Captures 6 Multiple Frequency Measurements Preset 0 Utility t 7 Single Channel Time Interval Measurement 8 Gated Totalizing 9 Enabling Math Functions 10 Where To Find It 11 Contact Agilent Technical Support z elp jam SEE Instrument help is available by pressing and holding any front panel key or softkey Pressing the Help key enables you to select additional help topics including front panel measurement examples Utility Functions Utility functions enable you to configure features of the instrument indirectly related to measurement selection and configuration These functions include e display configuration display control and numeric data formatting e user interaction localized language selection audible indicators e reference settings time date measurement time out time base auto leveling 53100 series emulation NISPOM security Display Configuration Measurements can be displayed in numerical or graphical form using the following keys 53220A 53230A User s Guide 23 1 Preparation for Use 5 Display Digits Trend Histogram i Chart 4 AutoDigits Off On Vie oe ics e 7 With AutoDigits On the number of digits displayed is automatically set based on gate time measurement mode AUTO CONTinuous RECiprocal Chapter 3 and resolution enhancement When Off the number of digits is set with the rotary knob or
207. otalizing 165 Time Interval Measurements 170 Enabling Gate Signals on the Gate In Out BNC 172 Burst Carrier Frequency Measurements 172 Advanced Gate Control Gate Start 177 Advanced Gate Control Gate Stop Hold Off and Gate Stop 182 Automatic Gate Extension 189 53220A 53230A counter measurements are made by triggering the instrument and gat ing the input signal to select the portion or duration during which the input signal is mea sured This chapter covers the counter s trigger and gate cycles as they relate to counter mea surements KEYSIGHT TECHNOLOGIES 5 Triggering and Gating Settings Summary 144 Table 5 1 is a summary of power on reset settings for the trigger and gating parameters covered in this section Table 5 1 Trigger and Gate Settings Summary Parameter Setting Parameter Setting Trigger Gate Trigger source Immediate Gate start source External Trigger slope Negative Gate external source External Trigger delay 0 0s Gate start slope Negative Trigger count 1 Gate start delay source Immediate Sample count 1 Gate start delay events 1 Gate start delay time 0 0s Gate stop source External Gate stop slope Positive Gate stop holdoff source Immediate Gate stop holdoff events 1 Gate stop holdoff time 0 0s Frequency Frequency gate source Time Frequence gate time 0 1s Frequency gate polarity Negative Frequency mode Auto Frequency burst gate auto On Frequency b
208. ound terminal at the power outlet Any interruption of the protective grounding conductor or disconnection of the protective earth terminal will cause a potential shock hazard that could result in personal injury Fuses The Keysight 53220A 53230A is provided with an internal line fuse appropriate for the line voltages listed on the instrument This fuse is not user accessible Do Not Operate in an Explosive Atmosphere Do not operate the instrument in the presence of flammable gases or fumes Do Not Operate Near Flammable Liquids Do not operate the instrument in the presence of flammable liquids or near containers of such liquids Do Not Remove the Instrument Cover Only qualified service trained personnel who are aware of the hazards involved should remove instrument covers Always disconnect the power cable and any external circuits before removing the instrument cover Do Not Modify the Instrument Do not install substitute parts or perform any unauthorized modification to the product Return the product to a Keysight Sales and Ser vice Office for service and repair to ensure that safety features are maintained In Case of Damage Instruments that appear damaged or defective should be made inoperative and secured against unintended operation until they can be repaired by qualified service personnel Cleaning the Instrument Clean the outside of the instrument with a soft lint free slightly dampened cloth
209. ount of memory available free on the specified drive 53220A 53230A User s Guide 265 7 Formats and Data Flow MMEMory CATalog ALL lt folder gt MMEMory CATalog DATA lt folder gt MMEMory CATalog STATe lt folder gt The folder parameter format is drive path drive is either INT internal flash memory or USB external memory device path is an absolute path and folder name beginning with If a folder is not specified the contents of the specified current folder MMEMory CDIRectory or the contents of the drive s root directory are returned The format of the data returned is lt total memory used gt lt total memory free gt lt file listing gt 6666 file listing with quotes included is further separated into lt file name gt lt file type gt lt file size gt Memory used memory free and file size are given in bytes Examples of what the indi vidual CATalog commands might return for a folder on an external USB memory device containing a sub folder plus a csv data file a dat data file and a state file are given as follows MMEMory CATalog ALL 253657088 519798784 datal csv ASC 12500 statel sta STAT 860 data2 dat BIN 1600 dut_a FOLD 0 MMEMory CATalog DATA 253657088 519798784 datal csv ASC 12500 data2 dat BIN 1600 MMEMory CATalog STATe 253657088 519798784 statel sta STAT 860 266 5
210. quence of commands creates a folder on a USB memory device takes a set of frequency measurements and then creates a file and copies the measurements to the folder from volatile reading memory Creating a Data File Example MMEM MDIR USB dut_1 create folder in USB memory MMEM CDIR USB dut_1 specify a current folder CONF FREQ 100E3 1 configure measurement SAMP COUN 50 set 50 measurements INIT initiate measurements WAL wait for readings to complete MMEM STOR DATA RDG_STOR G datal csv create file copy 252 53220A 53230A User s Guide Formats and Data Flow 7 Creating State Files System Store 1 0 Cal Instr System Battery 4 Recall Contig jAutoCal Sctup J Sctup Option l Sie Beea Set to Defaults Action ome Store Store arosa State e du Delete Power On State Factor p ti y l Action Store instrument state Path Fic SL TT A enter filename Action Path Store Store Browse PME State Instrument states can be stored in the instrument s internal flash memory or on a USB memory device and recalled later to restore a specific configuration Figure 7 2 The commands used to store and load counter states are MMEMory STORe STATe lt file gt MMEMory LOAD STATe lt file gt lt file gt is created during execution
211. quencies 2 10 kHz 50 Hz to lt 10 kHz Front Panel Fast Slow 10 0E3 50 0 ack Maximum MINimum A frequency setting of 10 kHz decreases the auto level period for all frequencies gt 10 kHz A frequency setting of 50 Hz provides auto leveling for frequencies down to 50 Hz The frequency selected should be based on the lowest expected frequency in the measurement The auto level frequency is a system setting which applies to all counter channels and should be noted when making two channel measurements 53220A 53230A User s Guide 53220A 53230A Input Signal Conditioning 4 The default setting is 50 Hz The value is stored in non volatile memory and does not change when power is cycled or following a reset RST or a front panel preset Pre set CONFigure and MEASure enable auto level and set a relative threshold of 50 but do not change the auto level frequency System Auto Level Range Example CONF FREQ 100E6 1 measure 100 MHz signal SYST ALEV FREQ 10 0E3 set auto level frequency NP IMP 50 set impedance to 50 ohms INP RANG 5 set range to 5V INP COUP AC set AC coupling INP LEV REL 65 set 65 relative threshold Burst Measurement Detector Threshold i D Freq Freq Period Time Pulse dvanced 4 Ratio Stamp Burst Auto Pulse Pulse Burst Burst r 4 gt gt PRF PRI Freq Width Channels Setup All 53230A burst measurements are r
212. rating System Windows XP SP 3 or later Windows Vista Windows 7 32 64 bit editions Processor 600 MHz or higher required 1 GHz 32 bit x86 800 MHz recommended 1 GHz 64 bit x64 Available Memory 256 MB minimum 1 GB minimum 1 GB or greater recommended Available Disk Space 1 5 GB 1 5 GB 1 GB recommended for Microsoft NET 1 GB recommended for Microsoft Framework 2 0 SP2 NET Framework 2 0 SP1 65 MB for Keysight IO Libraries Suite 65 MB for Keysight IO Libraries Suite Video Super VGA 800x600 w 256 colors or more Support for DirectX 9 graphics w 128 MB graphics memory recommended Super VGA graphics is supported Web Browser Microsoft Internet Explorer 6 0 or greater Microsoft Internet Explorer 7 or greater Note because of the installation procedure less memory may be required for operation than for installation Loading the Software Close all applications on your computer Insert the Keysight Automation Ready CD into the CD drive Follow the instructions as prompted for a typical installation Accept all default directories specified if prompted If the IO libraries installation does not start automatically select Start gt Run from the Windows start menu and type lt drive gt autorun auto exe where lt drive gt is the designa tor of the CD drive If another vendor s implementation of VISA Virtual Instrument Software Architecture is currently installed on your co
213. rence threshold can be specified as a percentage of the peak to peak ampli tude or as an absolute level in either the CONFigure or MEASure command 2 Absolute references are relative to the amplitude of the signal and must take into con sideration the counter s input coupling and impedance settings 3 The measured duty cycle is a decimal representation of the ratio For example a 5 duty cycle reading might appear in the counter output buffer as 5 105095730909666E 002 The same reading would appear in the display as 5 1 Pct 4 See Chapter 4 for information on configuring the input signal path and Chapter 5 for 53220A 53230A User s Guide 3220A 53230A Measurements 3 information on Triggering Phase Time Pulse Duty Rise Single Interval Width Cycle Fall AE Period l Phase First Ch Second Ch PhaseMeas i if 1 2 4 Level 4 Level 4 Auto Auto Level MEV R Off On NoiseRej Pos Neg Off On Auto 0 360 180 Phase measurements indicate the phase difference or shift between signals on counter channels 1 and 2 Figure 3 11 phase Figure 3 11 Phase Measurement Between Two Channels The commands used to make phase measurements are 53220A 53230A User s Guide 103 3 104 53220A 53230A Measurements MEASure PHASe lt channel_pair gt CONFigure PHASe lt channel pair gt FORMat PHASe AUTO POSitive CENTered FORMat PHASe q
214. rmine if a valid state exists of if the location is empty MEMory STATe VALid 0 1 2 3 4 queries the specified state location If 0 is returned the location is empty If 1 is returned a valid state exists For example 53220A 53230A User s Guide 257 7 258 Formats and Data Flow vwerify a valid state is stored in location 3 0 no state saved 1 valid state in location 3 MEM STAT VAL 3 User Defined Power On States The 53220A 53230A counter can be set to power up from one of five saved state loca tions or from a state file Figure 7 2 For this to occur 1 the state must currently be saved 2 recall must be enabled 3 the state location or file name must be selected This sequence is provided by the following commands save state in instrument state locations 0 4 SAV 0 1 2 3 4 or store state in state file sta internal or USB MMEMory STORe STATe lt file gt enable automatic recall at power on MEMory STATe RECall AUTO ON OFF MEMory STATe RECal1 AUTO query form select the state location or file recalled at power on MEMory STATe RECall SELect 0 1 2 3 4 lt file gt MEMory STATe RECal1 SELect query form If automatic recall is enabled and a state location or file name is not selected the coun ter will power on in the state it was in when last turned off location 0 Following are examples of a state recalled from a numbered state location
215. ror 222 Data Out of Range from occurring if the speci fied count is not available If the data format is REAL FORMat subsystem the readings are transferred in Defi nite Length Block format Table 7 1 The oldest reading is transferred first first in first out 244 53220A 53230A User s Guide Formats and Data Flow 7 DATA REMove Example frequency meas of 500 kHz signal with uHz resolution CONF FREQ 500E3 1E 6 1 configure counter TRIG COUN 2 set trigger count SAMP COUN 2500 set readings trigger INIT IMM initiate counter to start readings DATA REM 2500 WAIT wait for read first 2500 readings DATA REM 2500 WAIT wait for read last 2500 readings DATA LAST returns the last reading taken and includes reading units Hz s The reading is not deleted from memory and the command can be sent before the total reading count TRIGger COUNt x SAMPle COUNT is reached DATA LAST Example frequency meas of 500 kHz signal with uHz resolution CONF FREQ 500E3 1E 6 1 configure counter TRIG COUN 1 set trigger count SAMP COUN 100 take 100 readings INIT IMM initiate counter to start rdgs walt 20 seconds DATA LAST retrieve reading with units 20s after start FETC fetch all rdgs from memory when complete A typical response showing a subset of the data is 4 999962418998650E 005 HZ 4 999962370997962E 005
216. ry option is charging 6 VA max during power off or standby Line voltage and frequency are sensed at power on and no input power adjustments e g fuse changes line voltage selection are required For additional information refer to the Safety Information pages at the beginning of this guide For a complete list of 53220A 53230A product specifications refer to the data sheet included on the 53210A 53220A 53230A Product Reference CD p n 53220 13601 or on the Web at www keysight com find 53220A www keysight com find 53230A Applying Power Connect the power cord and press the on standby button on the front panel 5 During the power on sequence the counter performs an auto calibration and self test which includes e power supply verification e FPGA test e front panel verification e measurement board verification e channel 3 test if present e Option 300 battery test 300 if present 53220A 53230A User s Guide Preparation for Use 1 If the 53220A 53230A does not turn on when the on standby button is pressed verify AC power is available to the instrument and that the power cord is securely connected If the instrument still does not turn on the cooling fan is not audible or if the front panel display is off when power is applied return the unit to Keysight for repair Power On LED Status The led located under the on standby button is an indication of the on off standby condition of the instrume
217. s offsets present with the sig nals The counter s input impedance also affects the amplitude at the input Channel 3 Signal Strength Signal Strength S S The relative signal strength on channel 3 Option 106 or 115 6 GHz or 15 GHz micro 53220A 53230A User s Guide 53220A 53230A Input Signal Conditioning 4 wave input is dislayed on the counter and can also be measured with the command INPut3 STRength The colors and the relative strengths returned by the command indicate the following Color Strength Description None 0 Signal strength too low May not be able to make measurement For continuous wave CW measurements signal power must be gt 27 dBm For pulse measurements signal power must be gt 13 dBm Yellow 1 Signal strength weak but acceptable Green 2 3 Good signal Red 4 Signal may have exceeded level at which an accurate measure ment can be made gt 19 dBm CW gt 13 dBm pulse Signal levels gt 27 dBm may damage the instrument 53220A 53230A User s Guide 141 4 53220A 53230A Input Signal Conditioning 142 53220A 53230A User s Guide Keysight 53220A 53230A 350 MHz Universal Counter Timer User s Guide 5 Triggering and Gating Settings Summary 144 Trigger and Gate Time Line 145 Trigger and Gate Cycle 145 System Trigger 148 Wait For Trigger and Triggered States 154 Measurement Gate 156 Gate Set Up 156 Frequency Measurements 158 T
218. s in reading memory for a given trigger count TRIGger COUNt and sample count SAMPle COUNt If triggering is continuous i e internal the trend chart continually updates Trend Chart Configuration Figure 6 9 shows the softkey menus associated with trend chart configuration and con trol of the trend window 53220A 53230A User s Guide 225 6 53220A 53230A Math Graphing and Data Logging 226 AutoScale On Off Y Max 101 099 690 77k Frequency Y Min 101 099 688 68k Channel 1 Span 2 088 052 991 9m Count 5181 Chart Options Save Zoom amp Clear Off On Readings Markers Readings VOLGARE Marker2 LockMrkrs Zoom Pan Show A off On A All Action Path Export 101 099 300 16kH i rine 101 099 88 300 16kHz 4 Export Browse Readings AutoScale On Off Set Y Min Figure 6 9 Trend Chart Configuration and Control Trend Chart Boundaries The trend chart boundaries Y Max and Y Min can be set automatically AutoScale On or manually AutoScale Off using the menus under the Options soft key Figure 6 9 Auto scaled on boundaries keep all readings within the trend window Manually set boundaries off can result in readings outside the window Manual boundaries are set using the front panel knob or Shift ed numeric keys If reading limits are set using the Math function setting YMax and YMin will scale but not change the limits within the YMax and YMin boundar
219. s installed Table 1 1 53220A 53230A Product Options 53220A Opt Opt Opt Opt Opt Opt Opt 010 106 115 201 202 203 300 Ultra High Stability OCXO Timebase 6 GHz Microwave Input Ch 3 15 GHz Microwave Input Ch 3 Add parallel Channel 1 and Channel 2 inputs on rear panel Install Option 106 115 on front panel Install Option 106 115 on rear panel Internal Lithium lon Smart Battery and Charger 53230A Opt Opt Opt Opt Opt Opt Opt Opt 010 106 115 150 201 202 203 300 Ultra High Stability OCXO Timebase 6 GHz Microwave Input Ch 3 15 GHz Microwave Input Ch 3 Pulse Microwave Measurements 53230A only Add parallel Channel 1 and Channel 2 inputs on rear panel Install Option 106 115 on front panel Install Option 106 115 on rear panel Internal Lithium lon Smart Battery and Charger Each of the product options listed in Table 1 1 is available after the original purchase of the instrument Refer to the 53210A 53220A 53230A Service Guide p n 53220 90010 for installation instructions for each of these options No Manuals There are three printed manuals available with the 53220A 53230A Keysight 53220A 53230A Quick Start Tutorial p n 53220 90005 Keysight 53220A 53230A User s Guide p n 53220 90001 Keysight 53210A 53220A 53230A Service Guide p n 53220 90010 53220A 53230A User s Guide Preparation for Use 1 53220A 53230A Option O
220. s is specified with the command SENSe GATE STARt DELay EVENts lt count gt MINimum MAXimum DEFault SENSe GATE STARt DELay EVENts query form delay source TIME delays the gate start open for a period set by the command SENSe GATE STARt DELay TIME lt time gt MINimum MAXimum DEFault SENSe GATE STARt DELay TIME query form Advanced Gate Control Gate Stop Hold Off and Gate Stop Advanced gate control also includes optionally enabling a gate stop hold off and set ting the gate stop close parameters Figure 5 9 repeats the gate stop hold off and gate stop sections of the full trigger gate cycle shown in Figure 5 2 182 53220A 53230A User s Guide Triggering and Gating 5 from Gate Start open SENSe GATE STOP HOLDoff SOURce Gate Stop Hold Off SENSe GATE STOP HOLDoff EVENts IMMediate input channel holdoff disabled SENSe GATE STOP HOLDoff TIME IMMediate SENSe GATE STOP SOURce Gate Stop Source EXTernal not available with time interval SENSe GATE EXTernal SOURce External Gate Source EXTernal INPut 1 INPut2 SENSe GATE STOP SLOPe Gate Slope Gate Stop closed Gate stop source does not apply to rise fall time duty cycle pulse width phase and single period measurements Figure 5 9 Gate Stop Hold Off and Gate Stop Sequence Gate Stop Hold Off The gate stop hold off delays the gate from stopping closing for a specified time or until a spe
221. s may be copied copy fil MMEM COPY move fil MMEM MOVE copy fil MMEM COPY Le Le T Le wA copy fil MMEM COPY MMEM MOVE Copying Files and Folders from the Front Panel Le rename fil from folder to root of USB drive NT dut_1 statel sta USB from folder to root of USB drive INT dut_1 statel sta USB from INT folder to existing USB folder INT dut_1 statel sta USB duts INT dut_ 1 statel sta l statel sta USI le from statel sta to state2 INT dut_1 from folder to existing folder new file name B duts sl sta sta INT dut_1 state2 sta With file action Copy selected as shown on the previous page folders and files are cop ied as follows 1 Press the Browse softkey and use the front panel knob to highlight the source folder or file and then press Select Press Browse again to view the contents within a folder 2 Press Copy Path and highlight the destination drive or folder and then press Select Press Perform Copy to copy the folder or file Folder Catalogs A catalog of all sub folders and files or separate catalogs of data csv and dat and state sta files per folder can be obtained using the following commands In addition to the list of files the commands also provide the total amount of memory used and the total am
222. sed numeric data is displayed Remotely histograms can be displayed by changing the display mode using the com mand DISPlay WINDow MODE NUMeric HISTogram DISPlay WINDow MODE TCHart query form The Graph key followed by the Histogram softkey enables and automatically starts his tograms from the front panel Histograms can also be turned off from the softkey menu Remotely a reset RST or instrument preset SYSTem PRI display mode Histograms correspond to readings in reading memory start ESet does not change the ing at the time the histo gram is enabled and ending when the product of the trigger count TRIGger COUNt and sample count SAMP1le COUNT is reached If triggering is continuous i e inter nal the histogram continually updates from the point it was enabled Figure 6 6 describes the information provided in a typical histogram window 53220A 53230A User s Guide 53220A 53230A Math Graphing and DataLogging 6 X Max maximum reading across all bins Function X Min minimum reading across all bins Channel 3 Bin Size X Max X Min number of bins Histogram reading count X Max 49 999 852 894k Frequency X Min 49 999 830 972k Channel 1 Corresponds to bin with largest Bin Size 1 461 467 597 Om Count 50000 number of entries and expressed as 042 an exact count within the bin Histogram Max Count the bin s percentage of the total i 9 Hz reading count
223. sed to read the Questionable Data register A value of 2048 bit 11 indicates a reading below the lower limit A value of 4096 bit 12 indicates a reading above the upper limit Reading the register also clears all bits in the register see Clearing Limit Conditions Example Limit Checking The following is an example of enabling and using limit checking CONF FREQ 1 configure measurement SAMP COUN 500 check limit on 500 rdgs CALC STAT ON enable math operations CALC LIM STAT ON enable limit checking CALC LIM LOW 99 9E3 UPP 100 1E3 set limits NIT initiate the measurements WAL wait for readings to complete STAT QUES EVEN query questionable data register Notice that the limits are set on the same line to prevent a settings conflict error This Error can also be avoided by enabling limit checking after the limits are set Clearing Limit Conditions The Limit annunciator is turned off and bits 11 and 12 only in the Questionable Data Register are cleared by any of the following 53220A 53230A User s Guide 53220A 53230A Math Graphing and DataLogging 6 e enabling limit checking CALCulate 1 LIMit STATe ON e anew measurement cycle INITiate IMMediate READ MEASure e sending a new SCPI command or changing a current SCPI parameter e areset or instrument preset RST SYSTem PRESet These steps also clear all readings in reading memory RST and
224. ser s Guide Preparation for Use 1 Input Settings Status Indicators measurement start edge RMT remote LAN USB GPIB operation trigger threshold ExtRef external frequency reference input coupling ac or dc hpt PE MW SOW invalid external reference input Range 5V 50V 500V prebe range S ExtTrig external trigger source bandwidth filter enabled Battery status 7 Pr charge level Channel Configuration Mez a AC MO 50V black user disabled red software disabled Channel and Function Time Interval 1 2 Main Measurement p 0 1 3 8 8 nsec Main Measurement Display Secondary Measurements Vpp 2 00 V Vmin 220mV Vmax 1 78 V Data Entry Area Soft Keys Coupling Impedance Range Level BW Limit Probe AC DC IMO 500 SV Sov Setup Off 100k None w Softkey Navigation Figure 1 2 The 53220A 53230A Display About the Instrument This section lists the accessories shipped with the 53220A 53230A and contains information on its specified operating and storage environments and electrical requirements Materials Included The following accessories are shipped standard with the 53220A 53230A counter 53220A 53230A User s Guide 15 1 Preparation for Use 1 Power cord 2 USB cable 3 Keysight I O Libraries Suite CD ROM 4 Keysight 53210A 53220A 53230A Product Reference CD ROM Additionally your instrument may have shipped with one or more of the following option
225. sponds to the number of digits See Frequency Measurements in Chapter 5 for information on the relationship between gate time and reading resolution 2 See Chapter 4 for additional information on counter threshold levels and on configur ing the input signal path 53220A 53230A User s Guide Period 53220A 53230A Measurements 3 Measure auto 5 Scale Freq i Time Pulse Advanced Freq Ratio Period Auto Stamp l A standard period measurement is shown in Figure 3 4 Figure 3 4 Standard Period Measurement The commands used to make period measurements are MEASure PERiod lt expected gt MINimum MAXimum DEFault lt resolution gt MINimum MAXimum DEFault lt channel gt CONFigure PERiod lt expected gt MINimum MAXimum DEFault lt resolution gt MINimum MAXimum DEFault lt channel gt expected is the expected input signal period resolution is the desired mea surement resolution in seconds The parameter ranges are expected channels and 2 2 8 nsec to 10 sec default 100 nsec expected channel 3 Option 106 160 psec to 10 nsec default 2 nsec expected channel 3 Option 115 66 psec to 3 33 nsec default 2 psec 53220A 53230A User s Guide 85 3 86 53220A 53230A Measurements resolution all channels 1 0E 15 expected to 1 0E 5 expected default resolution corresponds to a 0 1s gate time channel is counter channel 1 2 or
226. t 1 and INPut2 the channel selected as the gate source cannot be the same channel on which the measured signal is applied That is the gate start source channel cannot be involved in the measurement Gate Hold Off and Stop Configuration Example The following example shows the sequence commonly used when configuring the stop gate hold off and stop gate using low level commands configure the counter for an externally gated time interval measurement The gate start and stop signals are applied to the rear panel Gate In BNC Gate closing is neld off for 1 second after the stop gate signal is received fae CONF TINT 1 2 time interval meas chi ch2 TRIG SOUR INT use internal trigger source TRIG COUN 1 specify one trigger SAMP COUN 2 set 2 readings gate cycles SENS GATE STAR SOUR EXT set an external gate source SENS GATE EXT SOUR EXT select rear panel Gate In BNC SENS GATE STAR SLOP POS set a pos start gate slope OUTP STAT OFF disable BNC as an output configure hold off and stop gate SENS GATE STOP HOLD SOUR TIME hold off source SENS GATE STOP HOLD TIME 1 hold off gate close for 1s SENS GATE STOP SOUR EXT external stop gate source SENS GATE EXT SOUR EXT select rear panel Gate In BNC SENS GATE STOP SLOP POS select pos stop gate source SENS TINT GATE SOUR ADV low level gate control READ initiate counter and take r
227. t lt Utility tore 1 0 Cal Instr System Battery Recall Config AutoCal Setup l Setup Option 4 E 4 4 4 oog Date F Manage Time it iles an User Settings 1 Action c Rany Delete Folder Capture Copy Rename Jo I h r Action pets Browse E Folders and Files are deleted using the front panel as follows 1 After pressing the Manage Files softkey press the Action softkey and select Delete The action should be selected first 2 Press the Browse softkey and use the front panel knob to highlight the drive folder or file and then press Select Press Browse again to view and select the contents within a folder 262 53220A 53230A User s Guide Formats and Data Flow 7 3 When folder or file appears in within the Path or File window press Perform Delete Deleting State Files System tit Sea 5 Store 1 0 Cal Instr System Battery lt Utility Recall Config AutoCal Setup etup Option 6 if 4 4 4 4 Store Recall i Delete Power On Set to State State State Factory Defaults E 9 Additionally state files can be deleted as follows 1 Press the Store Recall softkey to display the state menu 2 Press Delete State to open the File System window All state files sta extension on the root drive and within directories are listed Use the front panel knob
228. t 1 0 on this PC a Tasks for This Instrument Refresh All Refresh this instrument E amp CND7393H5Q select Interactive 1O O me mira ee done Fh Add Interface XK Delete C An instrument on the USB bus Bi Change properties Send commands to this instrument Bi Change the label Fy Add a programming alias B Ignore xX Delete General Tasks Refresh all More Information How do I get drivers lt v OF COMI ASRL1 OF COM4 ASRL4 apwo fZ 53230A GPIB0 3 INSTR Hi pxio a toPIPo FE 532304 4 532304 00050 Ivid agilent com MG Socket protocol USBO 0x0957 0x190 W 53230A_Counter highlight interface Change Properties Instrument Properties Installed Drivers VISA alias 53230A_Counter IDN string Manufacturer Model code Serial number Firmware Agilent Technologies 53230A US000 Agilent Technologies 53230A us00000050 00 189 1033 4546 1 18 3 47 99 12 Connect Interact Help Device Clear ReadSTB SYST ERR Clear History Command IDN 16 0 13931 0 Send Command Read Response l Send amp Read Instrument Session History Connected to USBO 0x0957 0x1907 USO00000S50 0 INSTR Figure 2 8 Starting Interactive IO for a Selected Interface 56 53220A 53230A User s Guide 53220A 53230A Software Installation and Interface Configuration 2 If the Interactive IO window is used to send
229. t is set to c 1 3 Mean Standard Deviation Minimum Value Maximum Value The mean average standard deviation minimum value and maximum value for the current reading count can be determined with the command CALCulate 1 AVERage ALL If the readings have been scaled see Scaling Functions the statistics are based on the scaled readings 204 53220A 53230A User s Guide 53220A 53230A Math Graphing and DataLogging 6 Example Enabling and Computing Statistics The following example returns the mean standard deviation minimum value and max imum value for a set of 500 readings The trigger count setting although it defaults to 1 is shown for completeness A wait statement is included to delay the analysis until all readings are complete CONF FREQ 1 frequency measurement on ch 1 TRIG COUN 1 trigger count is 1 SAMP COUN 500 500 readings per trigger SENS FREQ GATE TIME 10e 3 10 ms gate time CALC STAT ON enable CALCulatel subsystem CALC AVER STAT ON enable statistics INIT initiated the measurements WAL wait for all rdgs to complete CALC AVER ALL compute statistics Typical data returned for this command is mean std dev 5 50020355962701E 006 2 59738014535884E 006 min value max value 1 04179550991303E 006 9 94903904473447E 006 Average Value Minimum Value Maximum Value Average Peak to Peak Value Individual characteristics o
230. t resolution corresponds to a 0 1s gate time channel is counter channel 3 specified as 3 53220A 53230A User s Guide 115 3 116 53220A 53230A Measurements PRI and PRF Examples measure an expected 1 ms pulse repetition interval with 6 digit us resolution RST reset to start from known state MEAS FREQ PRI 1E 3 001 3 measure the pulse repetition interval using CONFigure set the detector threshold to 6 dB RST reset to start from known state CONF FREQ PRI 1E 3 001 3 NP3 BURS LEV 6 set a detector threshold of 6 dB READ measure an expected 1 kHz pulse repetition frequency with 6 digit mHz resolution RST reset to start from known state MEAS FREQ PRF 1E3 001 3 measure the pulse repetition frequency using CONFigure set the detector threshold to 6 dB RST reset to start from known state CONF FREQ PRI 1E3 001 3 INP3 BURS LEV 6 set a detector threshold of 6 dB READ Notes 1 See Measurement Gate in Chapter 5 for information on digits of resolution based on expected value and resolution parameter settings 2 See Burst Measurement Detector Threshold in Chapter 4 for information on setting the threshold for pulse measurements 53220A 53230A User s Guide 53220A 53230A Measurements 3 Positive and Negative Widths Pulse Pulse Burst Burst PRF
231. t terminals are connected to the instrument chas sis Verify signal polarity before mak ing any connections to the input terminals Protection Limits The Keysight 53220A 53230A 350 MHz Univer sal Counter provides protection circuitry to pre vent damage to the instrument and to protect against the danger of electric shock provided the Protection Limits are not exceeded and the instrument is properly grounded To ensure safe operation of the instrument do not exceed the Protection Limits defined on the front panel Channel Setup 1 Watt Max into 50W WARNING During battery operation the maximum measured signal supplied by the user is 42V WARNING Product Options 201 202 add parallel Channel 1 and Channel 2 inputs to the rear panel of the instrument Signals on the center conductor of either panel s channel BNCs are also present on the corresponding center conduc tor of the BNC on the opposite panel Installing the Instrument The Keysight 53220A 53230A operates in the following line voltage ranges 100 240V 50 60 Hz 100 127V 440 Hz 90 VA Max Instrument ventilation is through the sides and rear Do not obstruct the ventilation holes in any of these locations Battery Operation When operating the 53220A or 53230A under battery power Option 300 failure to observe the following warnings may result in damage to the instrument electric shock and serious per sonal injury WARNING Connec
232. t the instrument chassis to earth ground during battery operation to minimize shock hazard Any inter ruption or disconnection of the protec tive earth terminal will cause a potential shock hazard that could result in personal injury WARNING Under battery power the instrument chassis may float to the potential of the measured signal supplied by the user 53220A 53230A User s Guide Contents 1 Preparation for Use 11 Front and Rear Panel Overview 13 Front Panel 13 Rear Panel 14 Display 15 About the Instrument 15 Materials Included 15 Operating and Storage Environments 17 Electrical Requirements 18 Applying Power 18 Power On LED Status 19 Standby Power 19 Battery Operation 20 Battery Care 22 Using Built In Help 23 Utility Functions 23 Display Configuration 23 User Interaction 27 Reference Settings 28 How the User s Guide is Organized 32 53220A 53230A User s Guide Contents 2 3 53220A 53230A Software Installation and Interface Configuration 35 Software Requirements 36 Using the Counter Web Enabled Interface 37 Connecting the Counter and Viewing its Home Page 37 Web Interface Overview 39 Installing the Keysight IO Libraries 41 Installing Instrument Drivers 43 Adding Instruments to the PC Interface 43 Configuring the LAN Interface 44 Configuring the USB Interface 49 Configuring the GPIB Interface 52 Using Interactive IO 55 Firmware and Driver Updates 56 Disabling Calibration Security 5
233. t to start from known state SYST TIM 5 0 set a 5S measurement timeout CONF TINT 1 2 configure 2 ch measurement INP1 LEV AUTO ON enable auto level on ch 1 INP2 LEV AUTO ON enable auto level on ch 2 INP1 LEV1 REL 10 set ch 1 threshold level to 10 INP2 LEV1 REL 10 set ch 2 threshold level to 10 INP1 SLOP POS start meas on ch 1 rising edge INP2 SLOP POS stop meas on ch 2 rising edge SENS GATE STOP HOLD SOUR TIME hold off gate close SENS GATE STOP HOLD TIME 200E 9 hold off for 200 ns SENS GATE STAR SOUR IMM start meas when gate rec d SENS GATE STOP SOUR IMM stop meas when holdoff done SENS TINT GATE SOUR ADV enable gate settings READ E 7 Notes 1 Auto level is enabled on both channels to specify relative threshold levels of 10 of the peak to peak signal level The measurement starts on a positive rising edge on channel 1 and stops on a positive edge on channel 2 2 A gate stop hold off is specified to select the desired rising edge on channel 2 and therefore the interval to be measured 53220A 53230A User s Guide 53220A 53230A Measurements 3 3 See Chapter 4 for information on input threshold levels and slope and Chapter 5 for advanced gating information Single Channel Time Interval Measurement The following example shows a single channel time int
234. tains the temperature of the OCXO when the front panel power button is switched off standby If line power is removed from the instrument and Battery Option 300 is installed and enabled standby power is supplied by the battery Battery supplied standby power is 24 hours Off disables standby power from either the line voltage or battery to the internal oscil lator when the front panel power button is switched off With standby power Of f cycling power on the instrument also cycles power to the oscillator This may affect the oscillator s calibrated accuracy and stability may not occur until the specified warm up time 45 minutes is reached 70 53220A 53230A User s Guide 53220A 53230A Measurements 3 Note that disabling standby power with Battery Option 300 installed and the line voltage removed will extend the time the battery remains charged Standby power is disabled O when the counter is shipped from the factory or fol lowing the SYSTem SECure IMMediate command The current setting is stored in non volatile memory and is not changed after a reset RST or instrument preset SYS Tem PREset or Preset key Setting the Measurement Mode Measure p auto Scale 1 l maa ORe poroa Jime Puses I Advanced GES q Ratio Stamp Burst Auto a Auto Recip Cont There are three measurement modes available for making frequency frequency rati
235. tate can be selected from the front panel as follows 1 From the Store Recall menu select User Def using the Power On soft key 2 Press User Def File to view the file system Select the desired state to be set at power on by selecting the desired folder and file name Remember that instrument state locations 0 4 are identified by file name e g STATE_3 sta For states saved in other files locations specify the appropriate file with the sta extension Selecting Last using the Power On soft key will recall the instrument state at the time the counter was last turned off state location 0 With Factory selected the counter will power up in its factory set state Managing Folders and Files Folders data files and state files created in internal flash memory and on a USB storage device can be managed i e deleted copied moved cataloged from the front panel or 260 53220A 53230A User s Guide Formats and Data Flow 7 using additional commands within the MMEMory and MEMory subsystems Deleting Folders Folders are deleted removed using the command MMEMory RDIRectory lt folder gt When deleting a folder from an I O interface the folder must be empty containing no sub folders or files The folder designated as the current folder MMEMory CDIRec tory cannot be deleted From the front panel un empty folders can be deleted as prompted as can the SCPI designated current folder Deleti
236. te set last programmatically SENSe FREQuency GATE SOURce SENSe TOTalize GATE SOURce Gate Source SENSe TINTerval GATE SOURce ADVanced not available with time interval IMMediate SENSe GATE STARt SOURce Gate Start Source EXTernal SENSe GATE EXTernal SOURce External Gate Source BNC INPut 1 INPut2 SENSe GATE STARt SLOPe Gate Slope SENSe GATE STARt DELay SOURce Gate Delay IMMediate SENSe GATE STARt DELay EVENts delay disabled input channel SENSe GATE STARt DELay TIME Gate Start open Figure 5 8 Gate Start Sequence Gate Start Source Gate are Start Stop Gate Out 4 Adv nL Menu iL Menu Off On Y Start Src Delay Src Imm None The specific command which sets the gate start open source is 178 53220A 53230A User s Guide Triggering and Gating 5 SENSe GATE STARt SOURce IMMediate EXTernal SENSe GATE STARt SOURce query form gate source IMMediate starts opens the measurement gate immediately after a sys tem trigger is received and following any programmed system trigger and gate start delay gate source EXTernal sets the gate source to be specified by the command SENSe GATE EXTernal SOURce BNC INPut 1 INPut2 SENSe GATE EXTernal SOURce query form gate source BNC is the counter s rear panel Gate In Out BNC gate source INPut 1 and INPut2 represented by softkeys Chan 1 and Chan 2 are the coun
237. tected on the PC are configured This section contains information for programmati cally adding the 53220A 53230A to those interfaces using the Keysight IO Libraries Connection Expert utility Simultaneous LAN USB GPIB connections to the instrument are allowed The figures used in this chapter represent the latest version of the IO Libraries available at the time of printing While you may have a different version the process of configuring and adding instruments remains basically the same 44 53220A 53230A User s Guide 53220A 53230A Software Installation and Interface Configuration 2 Remote Interface Configuration The following sections cover front panel configuration of the LAN USB and GPIB interfaces The interfaces can also be configured programmatically using the Remote Interface Configuration commands in the SCPI SYSTem subsystem This subsystem plus descriptions of all SCPI commands is located in the Programming Reference sec tion of the 53210A 53220A 53230A Product Reference CD Configuring the LAN Interface With the counter connected to the LAN interface the IP address can be read from the front panel as follows w e a T 3 Utility About 4 Select lt Help i E Shift 6 ilent 53230A IP Address 169 264 2 30 erial Number U300000050 GPIB Address 3 _ Firmware 00 133 1028 432 1 18 3 27 95 104 35 Installed Options 300 Internal Lithium lon
238. ter s channel 1 and channel 2 inputs These sources are not avail able for time interval pulse width duty cycle rise fall time or phase measure ments NOTE OUTput STATe OFF must be set when using gate source BNC See Enabling Gate Signals on the Gate In Out BNC for more information and for information on using gate signals to synchronize other instruments External Gate Start Signal Polarity Gate Src Start Stop Gate Out ni Adv 1 Menu i Menu Off On Gate Setup Start Src Slope Delay Src Ext ancl Pos Neg I None When using the external gate sources listed the polarity of the start gate signal is set changed with the command 53220A 53230A User s Guide 179 5 Triggering and Gating SENSe GATE STARt SLOPe POSitive NEGative SENSe GATE START SLOPe query form POSitive starts opens the gate on a positive edge on the Gate In Out BNC or chan nel 1 channel 2 input NEGative starts the measurement on a negative edge on the Gate In Out BNC or channel 1 channel 2 input The gate is stopped closed based on the corresponding stop gate settings Following a reset RST or instrument preset SYSTem PRESet or Preset key a negative slope is selected External Gate Start Signal Threshold Gate Src Start Stop Gate Out Adv Menu Menu Off On Delay Sre L None Start Src Chanz Pos Neg Delay Src Setup
239. that specifying an oscillator source INTernal or EXTerna1 using SENSe ROSCillator SOURce disables automatic selection AUTO Off disables automatic selection of the oscillator source The source is then set by the SENSe ROSCillator SOURce command The reference oscillator source is set to INTernal with automatic selection enabled On when the counter is shipped from the factory or following the SYS Tem SECure IMMediate command Settings are stored in non volatile memory and are not changed after a reset RST or instrument preset SYSTem PREset or Preset key 53220A 53230A User s Guide 67 3 68 53220A 53230A Measurements Specifying the External Reference Frequency TimeBase Ext Ref Standby External 1 10 MHz Off On Pe eae 1 MHz 5 MHz 10 MHz _ _ When the reference oscillator source is EXTernal as set by either SENSe ROSCil lator SOURce or SENSe ROSCillator SOURce AUTO the lock frequency of the external signal to which the internal oscillator is tuned must be indicated using the command SENSe ROSCillator EXTernal FREQuency 1E6 5E6 10E6 MINimum MAXimum DEFault SENSe ROSCillator EXTernal FREQuency MINimum MAXimum DEFault query form The external reference frequency setting is 10 MHz when the counter is shipped from the factory or following the SYSTem SECure IMMediate command The setting is stored in
240. the Counter Channel The commands used to make time stamp measurements are 53220A 53230A User s Guide 87 3 88 53220A 53230A Measurements MEASure ARRay TSTamp lt count gt lt channel gt CONFigure ARRay TSTamp lt count gt lt channel gt SENSe TSTamp RATE lt rate gt MINimum MAXimum DEFault SENSe TSTamp RATE MINimum MAXimum DEFault query form count is the number of time stamp measurements returned readings trigger Parentheses must enclose the count A scale factor is included with the data so count 1 elements are actually returned Note that the TRIGger COUNt is always 1 for each READ or INITiate command issued channel is counter channel 1 2 or 3 specified as 1 2 or 3 rate is the rate at which time stamp readings are generated rate values are 10 0E3 100E3 800E3 and 1 0E6 The actual rate depends on the frequency of the input signal Following a reset RST or instrument preset SYSTem PREset or Preset key the rate is set to 1 0E6 Time Stamp Measurement Example configure the counter for 200 time stamp measurements RST reset to start from known state SYST TIM 1 0 1s measurement timeout CONF ARR TST 200 1 INP COUP DC set DC coupling NP IMP 50 set 50 ohms impedance INP LEV 1 set a 1V level threshold INP SLOP POS time stamp positive edges SENS TST RATE 1E6 1 MHz ti
241. the command SENSe GATE STOP SLOPe POSitive NEGative SENSe GATE STOP SLOPe query form POSitive stops closes the gate on a positive edge on the Gate In Out BNC or chan nel 1 channel 2 input NEGative stops the measurement on a negative edge on the Gate In Out BNC or channel 1 channel 2 input CONFigure and MEASure do not change the slope setting Following a reset RST or instrument preset SYSTem PRESet or Preset key a positive slope is selected External Gate Stop Signal Threshold Gate Src Gate Out Adv Off On Stop Src Holdoff Src atti Imm Time Time Stop Src Slope Setup Holdoff Src gz Celi J Chanz Pos Neg Chan2 Time Time Coupling Impedance Range Bw Limit Probe JAC DC 1MN 509 6Y 504 Off 100k None 10 1 For external sources INPut 1 and INPut2 Chan and Chan 2 softkeys a fixed input threshold voltage must also be specified in addition to the gate signal slope This is done using the command INPut 1 2 LEVel 1 2 ABSolute lt volts gt MINimum MAXimum DEFault INPut 1 2 LEVel 1 2 ABSolute MINimum MAXimum DEFault query form 53220A 53230A User s Guide 187 5 Triggering and Gating The specified edge slope of the gate signal crossing the threshold stops the gate More information on the INPut subsystem can be found in Chapter 4 53220A 53230A Input Signal Conditioning When using external sources INPu
242. the command CALCulate 1 SCALe GAIN lt gain gt MINimum MAXimum DEFault CALCulate 1 SCALe GAIN MINimum MAXimum DEFault query form gain values can range from 1 0E 15to 1 0E 15 0 0 1 0E 15 to 1 0E 15 The default gain is 1 0 and is the value set following a reset RST or instrument preset SYSTem PRESet The offset value B is set with the command CALCulate 1 SCALe OFFSet lt offset gt MINimum MAXimum DEFault CALCulate 1 SCALe OFFSet MINimum MAXimum DEFault query form offset values can range from 1 0E 15to 1 0E 15 0 0 1 0E 15 to 1 0E 15 53220A 53230A User s Guide 199 6 200 53220A 53230A Math Graphing and Data Logging The default offset is 0 0 and is the value set following a reset RST or instrument preset SYSTem PRESet Inverting the Reading 1 x Each reading as it is taken can be inverted prior to its use in the Mx B equation which thus becomes M x B Inversion is enabled with the command CALCulate 1 SCALe INVert OFF ON CALCulate 1 SCALe INVert query form ON inverts the reading OFF disables reading inversion Following a reset RST or instrument preset SYSTem PRESet reading inversion is disabled When Invert x is enabled On the front panel reading units Hz sec are turned off See Assigning Reading Units if displayed units are required 53220A 53230A User s Guide 53220A 53230A Math Graphing and DataL
243. the instrument to be triggered by the TRG command received over an IO interface Trigger Source Example configure for frequency set system trigger parameters CONF FREQ 5E6 0 1 2 TRIG SOUR EXT trigger source external System Trigger Slope Internal Source Trig Slope Trig External Pos Neg Paitin When the system trigger source is set to EXTernal the triggering slope edge of the signal is set with the command TRIGger SLOPe POSitive NEGative 53220A 53230A User s Guide Triggering and Gating 5 TRIGger SLOPe query form trigger slope POSitive selects the signal s rising edge and trigger slope NEGative selects the signal s falling edge The signal is applied to the Trig In BNC By default CONFigure sets the trigger slope to NEGative Trigger Slope Example configure for frequency set system trigger parameters CONF FREQ 5E6 0 1 2 TRIG SOUR EXT trigger source external TRIG SLOP POS trigger slope positive System Trigger Delay 0 000 000 s Source internal 000 000 s Trig Rdgs Trig Count Trigger Delay a Source External Trig Slope Pos Neg The delay between receipt of the internal or external system trigger signal and the start of the first measurement Figure 5 1 is set with the command TRIGger DELay lt time gt MINimum MAXimum DEFault TRIGger DELay MINimum MAXimum DEFault query form specifies th
244. the reset point occur ring on the positive edge The slope setting does not apply to pulse width duty cycle or rise fall time measure ments i e measurements with pre defined slopes For single channel time interval measurements SLOPe SLOPe1 sets the edge for the start event and SLOPe2 sets the edge for the stop event CONFigure and MEASure do not change the slope setting Following a reset RST or instrument preset Preset the positive rising slope is selected 53220A 53230A User s Guide 139 4 53220A 53230A Input Signal Conditioning Input Slope Example set the threshold slope CONF FREQ 1E6 0 1 1 measure 1 MHz signal SYST ALEV FREQ 10E3 set minimum auto level frequency NP IMP 50 set impedance to 50 ohms INP RANG 5 set range to 5V INP COUP AC set AC coupling INP LEV REL 70 70 threshold level INP SLOP POS trigger on positive slope Measuring Input Signal Levels and Signal Strength 140 Minimum maximum and peak to peak levels of the input signal are indicated on the bottom of the counter s main measurement display area and an example is included in Figure 4 4 These characteristics of the peak to peak signal can also be measured with the commands INPut 1 2 LEVel MINimum minimum value of p p signal INPut 1 2 LEVel MAXimum maximum value of p p signal INPut 1 2 LEVel PTPeak p p amplitude The minimum and maximum values include any DC level
245. the self test TST command to the 53220A 53230A the timeout period may have to be increased to allow the results to be returned This is done using the Options tab on the Interactive IO window The 53220A 53230A self test takes approximately seven seconds to complete Firmware and Driver Updates Firmware and driver updates when available for the 53220A 53230A are available via the Web This section contains information for locating and downloading the updates to your computer and then installing the updates in the instrument Disabling Calibration Security Before firmware updates can be installed the counter s calibration security feature must be disabled This done using the command CALibration SECurity STATe OFF ON lt code gt CALibration SECurity STATe query form To unsecure the instrument you must provide the security code in addition to setting the state to OFF The security code is set to AT53220A Keysight 53220A or AT53230A Keysight 53230A when the instrument is shipped from the factory Note however the security code may have been changed once the counter has been in use After the firmware update is complete the counter can be re secured by setting the state to ON and providing the security code The calibration count is unaffected when chang ing the security state or by a firmware update The calibration count can be read with the command CALibration COUNt 53220A 53230A User s
246. tics of the pulse signal Following a reset RST or instrument preset SYS Tem PRESet or Preset key automatic gate control is enabled ON When OFF the gate time and delay are set manually using the commands SENSe FREQuency BURSt GATE TIME lt time gt MINimum 53220A 53230A User s Guide 175 5 176 Triggering and Gating MAXimum DEFault SENSe FREQuency BURSt GATE TIME MINimum MAXimum DEFault query form SENSe FREQuency BURSt GATE DELay lt delay gt MINimum MAXimum DEFault SENSe FREQuency BURSt GATE DELay MINimum MAxXimum DEFault query form time sets the gate time for measuring the pulse burst carrier frequency For accurate results the gate window open close must be within the threshold detector s 6 dB 12 dB sensitivity range The range for time is 1 us to 100s with 10 ns resolution Following a reset RST or instrument preset SYSTem PRESet or Preset key the gate time is set to 1 Us delay sets the gate delay at the start of the measurement The delay starts when the input level reaches the detector threshold 6 dB 12 dB set by the INPut3 BURSt LEVel command The delay range is 0s to 10s with 10 ns resolu tion Following a reset RST or instrument preset SYSTem PRESet or Preset key the delay is set to 0 0s Carrier Frequency Configuration Example The following example shows a typical configuration for a burst carrier freq
247. tion Applicable Models Firmware Revision Description Cancel Help Figure 2 10 Selecting the Update File Path 3 Enter the counter s IP address or host name Figure 2 11 Select Update to start the update process 53220A 53230A User s Guide 53220A 53230A Software Installation and Interface Configuration 2 Firmware Update Utility Instrument Detection And Update E Select Instrument IPAddress Hostname Status Message Figure 2 11 Specifying the Address or Host Name The firmware update takes a few moments to complete The 53220A 53230A will reboot once the update is complete Following a firmware update Keysight Connection Expert if running may report that the 53220A 53230A configuration has changed This is represented by a yellow triangle and an exclamation point next to the updated instrument Select the instrument name select Change Properties and then select either Test Connection or Identify Instrument to update Connection Expert 53220A 53230A User s Guide 61 2 53220A 53230A Software Installation and Interface Configuration Downloading IVI COM Driver Updates IVI COM and LabVIEW drivers for the 53220A 53230A when available are provided on the Web at either www keysight com find 53220A www keysight com find 53230A Once this page is displayed select the Technical Support tab and then select Drivers and Software
248. tion Most hardware errors are detected at instrument 240 Hardware error power on If a hardware error occurs cycle powel again If the error remains contact Keysight The function specified requires optional channel 241 Hardware missing 3 The channel is either missing or incorrectly installed 53220A 53230A User s Guide 53220A 53230A Error Messages An error occurred reading from or writing to a file M in internal flash memory or on a USB memory 250 pe eee device File space may have been exceeded or file read write error viges SHE SP y x the USB device removed before the operation was complete 252 Missing Media Internal flash memory or the USB device was not found during a file operation Internal flash memory or the USB device has no 254 Media full memory space available to create the folder or file or to perform the file operation 256 File or fold r name not fo nd The folder or file name specified in command does not exist 257 File name error The file or folder name contains an invalid charac invalid character in name ter lt gt 257 File name error The combination of the directory path and file path too long name is greater than 239 characters 257 File name error The folder name specified in the memory opera not a folder name tion is the name of an existing file 257 File name error The file name specified in the memory operat
249. to 1 MQ CONFigure and MEASure do not change the input impedance setting Impedance Example period measurement of expected 10 MHz signal maximum resolution use channel 1 CONF FREQ 0 1E6 MAX 1 INP IMP 1 0E6 set impedance to 1 Mohm 53220A 53230A User s Guide 53220A 53230A Input Signal Conditioning 4 Input Protection The maximum input voltage including any DC offset allowed with 50Q input imped ance is 5 125 Vp If the input voltage exceeds _ 10 0 Vp the input protection relay opens changing the input impedance to 1 MQ The display and Impedance softkey will still indicate a 50Q setting however With the relay open the corresponding channel key flashes until the input voltage is removed or reduced below the damage threshold and the key is pressed This sets the impedance back to 50Q To programmatically determine if the protection relay has been opened the command INPut 1 2 PROTection queries the relay state 0 relay closed 1 relay open With the input voltage removed or reduced below the damage threshold the protection relay is reset closed with the command INPut 1 2 PROTection CLEar setting the input impedance back to 509 Voltage Overload Bit The opening of the input protection relay corresponds to the Voltage Overload bit bit 0 being set in the counter s Questionable Condition and Questionable Event registers The bit in the Condition register is cleared by the
250. tocol For higher performance instruments added to the LAN configuration can also use the Sockets protocol To use this connection select Add Address from the Add Instruments menu Figure 2 4 In this window enter the instrument s host name or IP address and under Optional Socket Connection select Use socket connection Figure 2 5 Note that an instrument can have both VXI 11 and Sockets connections in the configuration Figure 2 4 53220A 53230A User s Guide 47 2 48 53220A 53230A Software Installation and Interface Configuration 4 Add LAN Instruments TI oa Connect to an instrument A 53230A 00050 by using an address or hostname you already know This has the E E E E advantage of being able to connect devices that are not auto discovered Test Connection O Identify Instrument Instrument Web Interface C Figure 2 5 Adding a Sockets Connection About IP Addresses and Host Names Dynamic Host Configuration Protocol DHCP and Automatic IP are enabled on the 53220A 53230A when shipped from Keysight This allows the instrument to automati cally obtain an address on the network If there is a DHCP server on the network the server will assign the address to the instrument If there is not a DHCP server on the network the 53220A 53230A will automatically determine the address to use The address will be in the range 169 254 1 1 to 169 254 255 255 53220A 532
251. togram after the ranges are set e setting the ranges automatically Setting the Bin Ranges to Min and Max 000 000 000 000 000 Hz Number of AutoRange ATI Upper Set to Quter Bins Bins Off On ie Bin Min Ma oft On i With AutoRange Off the Set to Min Max softkey is another method for setting the histo gram bin ranges lower and upper Depending on the instrument state Set to Min Max will set the ranges as follows 53220A 53230A User s Guide 217 6 218 53220A 53230A Math Graphing and Data Logging e When Statistics under the Math key are enabled the minimum and maximum values from the reading statistics are used e Ifreadings are in progress and Statistics are off the instrument will select a minimum and a maximum value from up to the last 10 000 readings taken e Ifno previous readings are available a minimum bin range of 0 and a maximum bin range of 1 000 000 000 0 are set Automatic Range Setting E E ee e 7 Number of AutoRange iia Outer Bins Bins Off On Rdgs Off On er eae Sree J Alternately lower and upper range values can be set automatically based on a minimum value and maximum value obtained from the first n number of readings taken Automatic range selection is enabled with the commands CALCulate2 TRANsform HISTogram RANGe AUTO OFF ON CALCulate2 TRANsform HISTogram RANGe AUTO query form ON enabl
252. truments LabVIEW 53220A 53230A native mode driver IVI C Web LAN GPIB USB National Instruments LabWindows CVI IVI C Web Visit www keysight com for the latest version of the Keysight IO Libraries Suite 53220A 53230A User s Guide 53220A 53230A Software Installation and Interface Configuration 2 Using the Counter Web Enabled Interface Operating the 53220A 53230A counter from its Web interface requires a Java enabled Web browser but no additional i e user installed libraries or drivers The Web inter face provides access to the counter s SCPI command set This section describes the Web pages and windows primarily used to program the 53220A 53230A Refer to Help with this Page associated with each Web page for additional information on functions or pages not covered in this man ual Connecting the Counter and Viewing its Home Page Connect the counter directly to the PC or to the PC through a network switch using a standard LAN cable Obtaining the IP Address Turn on the counter and open the Web browser Allow a few moments for the counter s IP address to be assigned either through DHCP or AUTO IP The IP address can be read from the counter front panel as shown 53220A 53230A User s Guide 37 2 53220A 53230A Software Installation and Interface Configuration 00 133 1 8 432 1 18 3 27 95 104 35 Installed Options l gilent 53230A Coma 19 254 230 erial Number US00000050 GPI
253. ture Copy Rename Pa t hN Create File Folder rr mal ei sro Action Create new folder Path Action Path 4 Folder Browse File 53220A 53230A User s Guide 249 7 7 Formats and Data Flow Folders and sub folders are created using the command MMEMory MDIRectory lt folder gt folder has the form drive path drive is either INT internal flash memory or USB external memory device path is an absolute path and folder name beginning with or INT is the default drive path The folder parameter cannot exceed 240 characters and the characters lt gt cannot be contained within the folder name To create a folder create folder dut_1 with sub folder datal in the root directory of internal flash memory MMEM MDIR INT dut_1 MMEM MDIR INT dut_1 datal Note that a folder and sub folder cannot be created within the same command Entering a Folder Name from the Front Panel With the Create new folder window displayed as shown on the previous page enter a folder name or any file name as follows 1 Press the Browse soft key and use the front panel knob to highlight the counter s internal flash memory Internal or if present the USB drive connected to the front panel host port External Press the Select soft key to select the drive 2 To create a folder name rotate the knob t
254. uency mea surement In the example the gate delay and gate time are set manually If the character istics of the pulse are unknown the on time can be measured separately to insure that the delay and time are set within the threshold detector s sensitivity range see Chapter 3 for more pulse measurement examples measure the on time of the burst to determine appropriate delay and gate times CONF PWID BURS 3 53220A 53230A User s Guide Triggering and Gating 5 INP3 BURS LEV 6 READ measure the burst carrier frequency CONF FREQ BURS 3 INP3 BURS LEV 6 set detector threshold level SENS FREQ BURS GATE NARR OFF turn narrow mode off SENS FREQ BURS GATE AUTO OFF manually set delay time SENS FREQ BURS GATE DEL 5E 6 set gate delay SENS FREQ BURS GATE TIME 10E 6 set gate time READ Advanced Gate Control Gate Start Gate Src 1 10 000ms Gate Gate Out Time Off On Gate Src Start Stop Gate Out 4 Adv 1 Menu 4 Menu Off On Setting the gate source to ADVanced during configuration of frequency totalizing and time interval measurements enables additional start stop control of the measurement gate Figure 5 8 repeats the gate start source section of the full trigger gate cycle shown in Figure 5 2 53220A 53230A User s Guide 177 5 Triggering and Gating shown first sequentially from Triggered Sta
255. uery form channel_pair settings are 1 2 and 2 1 The first channel of the pair is relative to the second channel AUTO automatically selects whether the phase difference will be returned as a positive value between 0 and 360 or a positive or negative value between 180 POSit ive returns the measured phase difference as a positive value between 0 and 360 CENTered returns the measured phase difference as a positive or negative value between 180 Phase Measurement Examples using MEASure measure the phase difference between channels 1 and 2 RST reset to start from known state FORM PHAS CENT display result as pos or neg MEAS PHAS 1 2 using CONFigure measure the phase difference between channels 1 and 2 display result as a value between 0 and 360 degrees RST reset to start from known state CONF PHAS 1 2 FORM PHAS POS display result as a positive value READ 53220A 53230A User s Guide 3220A 53230A Measurements 3 Notes 1 If the phase format is CENTered a typical phase measurement for signals 270 out of phase for example could be 9 10799485574691E 001 If the format was POSitive the phase difference measured might typically be 2 68904450044343E 002 2 Phase measurements represent the signal phase of the first channel relative to the sec ond channel in the pair For example if the phase format is CEN
256. uld occur after all other gate parameters have been set This prevents potential settings conflict errors between the SENSe subsystem com mands and is illustrated in the examples and program segments that use these com mands from Triggered State shown first sequentially to SAMPle COUNt reached set last programmatically A SENSe FREQuency GATE SOURce TIME SENSe TOTalize GATE SOURce Gate Source SENSe TINTerval GATE SOURce IMMediate EXTernal not available with time interval NEUE LINE ute Sane ADVanced ee Gben SENSe FREQuency GATE TIME SENSe TOTalize GATE TIME SENSe TINTerval GATE SOURce IMMediate Gate Stop closed for all EXTernal Sources Gate In Out BNC Disable OUTPut STATe OFF Gate Start open SENSe FREQuency GATE POLarity SENSe TOTalize GATE POLarity SENSe TINTerval GATE POLarity icy Ezi Q a 8 3 5 amp S g 2 Fd E INPut 4 2 LEVel 1 2 ABSolute Gate Stop closed Figure 5 5 Gate Source Sequence Typical counter measurements and most applications use an internal signal as the gate source to control the gate for a specified or default period of time For applications requiring synchronization with external events or requiring more pre cise gate control an external gate or advanced gating is used External gate signals are 53220A 53230A User s Guide 157 5 158 Triggering and Gating applied to the counter s rear panel Gate In Out
257. urst gate delay 0 0s Frequency burst gate narrow Off Frequency burst gate time 1us Time Interval Time interval gate source Immediate Time interval gate polarity Negative Totalize Totalize gate source Time Totalize gate time 0 1s Totalize gate polarity Negative 53220A 53230A User s Guide Triggering and Gating 5 Trigger and Gate Time Line Triggering and gating are part of every counter measurement The relationship of these actions relative to the measurement are shown in the time line of Figure 5 1 Measurement Gate Stop Enabled Complete _ Gate Start Enabled Making mdasuremgnt 1 I l Input events r ceived pre ignored Gate enabled aoa eee eee Trigger Delay Start Gate Delay l Stop Holdoff i 4 Time p Time Brents Time Events _ t 7 t Tri i gger Gate l 4 Input Gate INIT IMMediate Start Event Final Event Stop Gate sequence repeated for each reading per trigger Figure 5 1 Triggering and Gating Time Line Trigger and Gate Cycle The elements of triggering and gating summarized in Figure 5 1 are shown in detail in the programming cycle of Figure 5 2 The following sections contain descriptions and examples of each step in the cycle The SCPI commands and parameters listed throughout this chapter are pro vided as a guide to how the counter is operated programmatically The com mands are described in detail in the Programmer s Reference section
258. vaild user preference setting information An input signal greater than or equal to 10Vp is present on a channel The input impedance is set 301 Input termination protection to 1 MQ Removing or reducing the signal below relay opened the damage level and pressing the flashing chan nel key or sending INPut PROTection CLEar resets the protection relay The input signal present on the channel is greater 302 Cannot reset input protec than or equal to 10Vp when a reset of the relay tion high voltage present was attempted key or using INPut PROTec tion CLEar Unable to make a carrier frequency measure ment For pulse widths lt 13 us narrow pulse 310 Channel 3 pulse width mode must be set using too short SENSe FREQuency BURSt GATE NARRow ON If narrow pulse mode is set pulse widths must be gt 200 ns Unable to make a carrier frequency measure Channel 3 pulse width ment If narrow pulse mode is set pulse widths 311 too long must be lt 17 us For pulse widths gt 17 us disable narrow pulse mode using SENSe FREQuency BURSt GATE NARRow ON The pulse width could not be measured due to no 312 Channel 3 pulse width could signal present the power level of the signal is too not be measured low or too high or the signal is not a pulsed sig nal 53220A 53230A User s Guide 53220A 53230A Error Messages The carrier frequency could not be measured pos 313 Chann
259. which is subsequently used to generate a service request Bits within the standard event register are enabled with the command ESE lt enable gt ESE query form enable decimal value corresponding to the binary weighted sum of the bits in the register For example to enable the bit monitoring command syntax errors ESE 32 ESE returns the weighted sum of all enabled bits 53220A 53230A User s Guide Instrument Status 8 Status Byte Register The Status Byte register contains the summary bits of the Questionable Data Register Group the Standard Operation Register Group the Standard Event Register the counter error queue and the output buffer Figure 8 1 The Master Summary RQS bit Bit 6 is set 1 when any other bit in the Status Byte register 1s set Reading the Status Byte Register The Status Byte register is read with either of the following commands STB SPOLL Both commands return the decimal weighted sum of all set bits in the register The difference between the commands is that STB does not clear bit 6 RQS The serial poll SPOLL does clear bit 6 All bits in the Status Byte register except bit 4 are cleared with the command CLS Bit 4 is cleared when data is read from the output buffer Service Request Enable Register The Service Request Enable register specifies which status group summary bit s will send a service request message to the computer The bits are specified w
260. ystem For measurement configuration involving numeric entry Shift changes the key definitions to the numbers at the lower left of the keys D Channel Keys select the input channel and displays the soft key menu used to configure the input signal path Note that Figure 1 1 includes Channel 3 Option 106 115 Signal path configuration is covered in Chapter 4 E Gate and Trigger Keys select the gating and triggering soft key menus used to control the measurement Gating and triggering are covered in Chapter 5 F Soft Keys are the menus from which the counter is configured The menus and soft keys themselves are defined by the functional keys described above G Power Standby Button switches the instrument between on and off or between on and standby Standby power when enabled is provided by the line voltage or Battery Option 300 and is used to maintain the temperature of the oven controlled crystal oscillator OCXO Option 010 See Applying Power in this chapter for more information 53220A 53230A User s Guide 13 1 Preparation for Use H USB Host Port available for transferring measurement data and instrument configurations between the counter and a USB storage device The front panel port is for information transfer only The rear panel USB port is used for instrument I O control Data flow is covered in Chapter 7 Rear Panel Display The 53230A rear panel shown in
261. ystem trigger count 152 system trigger delay 151 system trigger slope 150 system trigger source 149 trigger cycle 145 U updating firmware 56 USB adding instruments 49 address string 50 interface configuration 43 USB storage devices 247 user preferences storing and loading 255 user assigned units 201 user defined power on states 258 using instrument help 23 utility functions 23 beeper setting 27 display configuration 23 help language 27 numeric format 24 reference settings 28 screen capture 26 screen control 25 V viewing histogram data 225 volatile memory 241 voltage overload bit 123 W wait for trigger state 154 Waste Electrical and Electronic Equipment Directive 3 Web enabled instrument interface and Interactive IO 54 Web enabled interface browser configuration 38 connecting to the instrument 37 getting started 37 53220A 53230A User s Guide This information is subject to change without notice Keysight Technologies 2011 2014 Edition 3 August 2014 93220 90001 KEYSIGHT www keysight com TECHNOLOGIES

Keysight 53220A/53230A 350 MHz Universal Frequency Counter

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