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Digital Oscilloscope ¸HMO Compact Series User Manual

1. Bus Signal Source 4 Bit Counter 4 Bit Random pattern 4 Bit Component Tester Parameters Testing frequency Voltage Current 64 all analog channels Mask enclosing acquired waveform with user defined tolerance beep acquisition stop screenshot trigger pulse automatically saving trace data Statistics number of completed tests max 4x10 9 events number of passes failed acquisitions absolute and in percent test duration addition substraction multiplication division 2 analog channels addition substraction multiplication division minimum maximum square square root absolute value pos neg wave reciprocal inverse log10 In derivation integration filter lowpass highpass formula editor menu driven all analog channels user defined constants math memory 5 formula sets 5 equations per formula set 1 formula set with max 4 equations frequency span center frequency vertical scale vertical position 2Kpts 4Kpts 8Kpts 16Kpts 32 Kpts 64 Kpts Hanning Hamming Rectangular Blackman dBm dBV Vrms refresh envelope average up to 512 2 horizontal cursors previous next peak search all analog channels square wave probe adjust bus signal source Counter pseudo random pattern frequencies 1kHz 1 MHz level 1 Vpp ta lt 4 ns I2C 100 kBit s 400 kBit s 1 MBit s SPI 100kBit s 250kBit s 1 MBit s UART 9600 Bit s 115 2 kBit s
2. Fig 2 4 Screen view Measurement results for automated measurements and cursors settings for the activated vertical channels re ference signals and mathematically derived curves are shown in the lower section of the screen 4 Within the graticule signals of the selected channels are displayed By default 8 scale divisions are shown This can be exten ded virtually to 20 divisions which can be displayed using the Scroll Bar 5 key 2 4 General concept of instrument operation The general operating concept Is based on a few key prin cipals recurring with various settings and functions 1 Keys that do not open a soft menu e g SCROLL BAR activate a specific function pressing this key a second time will deactivate this function 1 Keys that open a soft menu when pressed once will close the soft menu when pressed a second time 1 Depending on the requirements the universal knob in the CURSOR MENU section is designed to either select a numeric value or to navigate through submenus The MENU OFF key below the soft menu keys closes the Current menu or switches to the next higher level 1 Pressing the appropriate key will activate a deactivated channel If a channel was already activated selecting another channel will change operation to the channel whose key was pressed its LED lights up 1 If cursor measurements are activated the COARSE FINE key will select the cursor with the activated universal knob in the CURSOR MEN
3. 10 divisions x scaling per division Tz indicates the zoom time and determines the position of the zoom area The time base setting in the upper right of the display is high lighted in gray while the zoom time base above the zoom Horizontal System Refresh 100kSa Fig 5 5 Zoom function window is marked in white The large knob in the HORI ZONTAL menu is used to change the zoom factor You can also press this knob If the knob is pushed the time base setting Is highlighted in white and the zoom time base in gray Now the knob is available to select the time base set ting This allows you to change time base settings without having to leave the zoom mode Pressing the knob again will highlight the cursors limiting the zoom area in white allowing you to use the knob to change the zoom area Now you can use the small knob in the horizontal area of the control panel to move the position of the zoomed sec tion across the entire signal As described above pressing the large knob enables you to set the time base but not the zoom factor This in turn enables the small knob to move the trigger position to define the relationship of pre and post captures records The ZOOM function is not available in ROLL mode In the acquisition mode ROLL it is generally not possi ble to zoom In on the memory because the signal values of the X axis are always captured with the maximum me mory depth The acquisition mode NORMAL always inclu
4. AUX CURSORS This soft menu allows you to define the settings for auxiliary cursors Pressing the function keys enables you to activate or deactivate the cursors The menu Item DEFAULTS resets the default settings 7 2 Usage of the Virtual Screen Pt tT tT tT ti tt tT Tt ptt tt yt tT tt DOCU IE Jayi Sa ATAN TEAAANN EER COY Ep DA A DS CO DOE Li NEANG RE Fig 7 1 Drawing of the virtual screen area The graticule for the R amp S HMO Compact series includes 8 vertical divisions but also has a virtual range of 20 divisi ons These 20 divisions may be used entirely by the optio nal digital channels DO to D7 the mathematical channels and the references signals The analog channels may use up to 10 divisions from the center Fig 7 1 illustrates the functionality of the virtual screen The display includes a section of 8 vertical divisions in gray This section enables you to display analog signals The small bar next to the graticule indicates the position of the 8 visible divisions within the available 20 divisions By pressing the SCROLL BAR 5J the bar will be activated and displayed in blue and you can use the universal knob to shift the 8 visible divisions gray section within the availa ble 20 divisions This allows a simple and clear display of many Individual signal portions 29 Signal Display TB 10us 7T Os BACKLIGHT PERSISTENCE LED BRIGHTNESS The default setting indicated
5. CH1 500 mY SAL SMSa p 979 58 mv tr lt 200 00 ns y p i 59 58 mV CH1 200 mv 2 RMS 686 10 mV pp 920 00 mY VAmp 895 68 mY t TL 498 20 us Dty 49 99 Cnt J 1 t U 498 40us Dty 50 01 T 996 60us f 1 00 kHz Please change the time base to 100 us per scale division and press the QuickView 10 key You will see the most im portant parameters of a signal displayed 1 positive and negative peak voltages 1 rise and fall times 1 mean voltage 10 additional parameters are shown below the grid 1 RMS 1 peak peak voltage 1 frequency I period amplitude 1 number of rising edges 1 pos pulse width 1 neg pulse width 1 pos duty cycle 4 neg duty cycle With just one key you can view all available parameters si multaneously that characterize the signal This feature al ways applies to the currently active display channel You may also display parameters for several signals For this TB 500us T Os CH1 520 MY AL AUTO MEASURE MEAS PLACE 1 MEASURE 1 On Off 1da Rise Time 80 9 SOURCE PAGE 1 2 gt CH1 200 mY S CH2 SmY S tr60 lt 1 00 us t TL 498 00 us Dty 50 00 Cnt J 7 t Uf 498 00us Dty 50 00 15 Quick Start Guide option press the Quickview 10 key twice to deactivate this mode press the CH2 key 23 to activate CH2 and press the AUTO MEASURE 11 key to open the menu as displayed below Pressing the MEAS PLACE soft key will d
6. OPERAND 1 OBERANDIZ 16 TB 500us T Os 1MSa MEAS PLACE 2 MEASURE 2 Off TYPE RMS Value D SOURCE PAGE 1 2 CH2 S5m RMS 170 23 UV lows you to select the first operand With the key below you can select the operator The soft menu key below that allows you to select the second operand Only activated and displayed channels are available for the operands The sources selected in the function must be activated so that the mathematical graph can be calculated and the result signals can be displayed Press the bottom soft menu key FORMULARY This opens the formula editor to select and define 5 sets of formulas with up to 5 mathematical func tions each To change the settings use the soft menu keys and the universal knob 4 You can define and store the most fre quently used formulas After selecting the desired formula and pressing the soft menu key EDIT you can edit indivi dual formula functions Once a mathematical function has been defined and activated by pressing the soft menu key VISIBLE ON the short menu for the mathematical func tions will display this function The graph will be marked in the short menu by a red dot The sources selected in the function must be activated so that the mathematical graph can be calculated and the result signals can be displayed The R amp S HMO Compact series is able to store 5 different types of data 1 Device settings 1
7. TB 50 ns 7 0s Refresh PSS EES ST o a Fig 4 2 Short menu for the vertical settings 4 1 Coupling The analog channels have an input impedance of 1M or 502 with R amp SPHMO152x and R amp S HMO202x The R amp S HMO72x resp R amp S HMO102x have only an input im pedance of 1 MQ Do not connect the 50 Q inputs to effective voltage higher than 5V The 50 input impedance should only be selected if the signal source is 50 e g a generator with a 509 output where the termination within the scope is to be used In all other cases 1 MQ is to be selected The user determi nes if DC coupling or AC coupling is to be used With DC coupling the DC voltage of the signal will be displayed With AC coupling an input filter of 2Hz suppresses the display of DC voltage Signals of up to 200 Vims may be connected directly to 1 MQ inputs Higher voltages can be measured with external probes up to 40kV peak voltage 18 This should only be used with DC coupling For all gene ral applications the probes supplied with the instrument will be used The probes are specified for 1M inputs With the HMO72x and HMO102x the HZ154 probe is in cluded in delivery which offers 10 1 1 1 switchable at tenuation The attenuation setting has to be set manually in the channel menu The HMO152x and HMO202x are delivered with the HZO10 probe The HZO10 probe has an automatic attenuation 10 1 and an input impedance of TOM Passive probes have be ad
8. DIFF If this function is deactivated the absolute time in re lation to the trigger point will be displayed in the column START TIME The soft menu key TAB in the BUS short menu allows you to activate or deactivate the BUS table without opening a menu You can use the soft menu item POSITION to move the table to the top or bottom of the screen In addition it is possible to display the BUS table in full screen Select the position via universal knob in the BUS menu or directly via soft menu key POS in the BUS short menu Serial Bus Analysis 12 2 2 Bus Signal Source The R amp S HMO Compact series features 4 contacts left of the channel CH1 which provide the following signals ac cording to the respective settings Square wave Probe compensation standard setting frequency 1 kHz or 1 MHz 1 SPI Data rates 100 kbits s 250 kbits s or 1 Mbits s 1 12C Data rates 100 kbits s 400 kbits s or 1 Mbits s UART Data rates 9600 bits s 115 2 kbits s or 1 Mbits s 1 Pattern Frequency 1 kHz or 1 MHz 1 Counter Frequency 1 kHz or 1 MHz The contact at the upper left is always ground and the sig nal levels are about 1V The following table shows how the four outputs 1 S2 S3 and TL are used depending on the signal Te Tare 1 S2 s3 TL Square Wave No Signal No Signal No Signall Square Wave SPI Chip Select Clock Data No Signal Low Aktive Rising Edge High Active I2C No Signal Clock SCL Data SDA No Signal U
9. The acquisition modes are selected by pressing the AC QUIRE 44 key This opens a display menu which offers the following acquisition modes 5 3 1 Refresh This mode allows the capture and display of current signals 5 3 2 Roll This acquisition mode is intended specifically for very slow signals with the untriggered signal rolling across the screen from right to left requires signals slower than 200 kHz The R amp S HMO Compact series uses a ring buffer to store the signal values in roll mode Simply put the ins trument writes the first division to the first storage space the second division to the second storage space etc Once the storage is full the instrument overwrites the first storage space with the data of the most recent measure ment value This creates a ring or cycle run similar to a ticker The ZOOM feature is not available in the roll mode also refer to Chap 5 5 ZOOM Function 5 3 3 Envelope In this mode you can use the universal knob in the Cursor Menu section of the control panel to set the number of si gnal periods for averaging available in powers of 2 from 2 to 1024 requires repetitive signals 5 3 4 Average In this mode you can use the universal knob in the Cursor Menu section of the control panel to set the number of sig nal periods for averaging available in powers of 2 from 2 to 1024 requires repetitive signals 5 3 5 Filter In this mode you can activate a low pa
10. ganized differently depending on serial vs parallel or the number of data and clock signals The universal knob al lows you to select the BUS type PARALLEL or PARALLEL CLOCKED Select CONFIGURATION to determine the bus source and structure The contents of the menu change with the selected BUS type After pressing the top soft menu key BUS WIDTH you can use the universal knob to select a bus width from 1 8 bits The table displaying the bit assignments will be adjusted dynamically depending on your choice Each bit of the displayed bus has a source The source refers to the individual POD bits Based on the measurement setup the sources can be assigned via soft menu key SOURCE and the universal knob in the CUR SOR MENU section The soft menu keys PREVIOUS NEXT BIT allow you to move the position of the selection bar for the source of the individual bits The selected bit is highlighted in blue The left side of the table contains the bits in fixed se quence beginning at the top with DO LSB The univer sal knob allows you to assign a real logic channel to the selected BUS bit The allocation is not subject to restric tions you can also use partially identical logic channels in the two possible buses If you select PARALLEL CLOCKED as BUS TYPE you can also use the bottom soft menu key CONTROL WIRES to select sources for CHIP SELECT and you can use the universal knob to select the settings for CLOCK The soft menu key ACTIVE is used
11. not targeted Pressing the soft menu key SET TO TRACE places the selected cursors in their optimal position on the signal curve This allows very fast and typically optimal au tomatic positioning of the cursors For the most part only fine tuning is required at this point and the tedious major adjustments to the cursors will no longer be necessary In case the automated function SET TO TRACE does not pro vide the anticipated results due to complex signals you can press the key SET TO TRACE to position the cursors in a predefined starting position This allows you to return di stant cursors to the screen The soft menu key GLUE TO TRACE allows cursors to stay on the selected data point without changing the position in the measurement signal even if the scaling is modified cursors will be glued to the signal This function can be activated or deactivated If this mode is deactivated the cursor stays in position on the screen if scaling occurs With GLUE TO TRACE deacti vated the measured value changes while it remains unmo dified when the mode is activated The cursors will be deactivated by pressing the CURSOR MEASURE key The cursor menu will be closed 8 2 Automatic Measurements The R amp S HMO1002 features cursor measurements and also various automatic measurements These may be acti vated by pressing the key AUTO MEASURE 11 in the sec tion ANALYZE This menu allows you to select up to six automatic measurement function
12. showing the divisions as dots or as OFF the entire graticule will include no dots or lines INFO WINDOWS Selecting this soft menu item will open a submenu which allows you to set the transparency for the info windows Info windows are small windows that appear on the screen depending on the particular application e g values are displayed when offset is changed A transparency value of 0 to 100 is selectable Use the universal knob or the KEYPAD key to define this setting Additional menu items allow you to activate or deactivate the info windows for POSITION and TRACE BRIGHIN If POSITION is activated and the vertical position is changed the respective value on the zero line will be Signal Display displayed Depending on the selected trigger type the user will see specific information about the acquisition status This information will only be displayed if the signal changes on the screen can persist over a longer period If the trigger condition has been met the information window shows a progress display for the post trigger and pre trigger If the trigger condition has not been met the information window shows the time of the last trigger event Trig If the trigger type AUTOMATIC is selected the instrument will switch to non triggered acquisition mode in case of a non triggered condition over an ex tended period of time This acquisition mode does not display an info window as the data currently captured is displayed
13. 1 MBit s frequencies 1kHz 1 MHz direction decrementing frequencies 1kHz 1MHz voltage X current Y B0biz ZOO riz 10 Vp open 10 mA short Reference potential Interfaces Connectors and ports for mass storage FAT 16 32 for remote control Optional interfaces External monitor interface Y OUT BNC General Data Application memory Save Recall device settings reference waveforms traces data SOUrcCesS screenshots Math equation sets Realtime Clock RTC Power supply AC supply Power consumption 2 channel models 4 channel models Safety Temperature Operating temperature range Storage temperature range Rel humidity Mechanical Data Dimensions W x H x D Net weight Ground PE 2 x USB Host Typ A max 500 mA HO720 dual interface USB Device Typ B RS 232 HO730 dual interface USB Device Typ B Ethernet RJ45 HO740 interface IEEE 488 GPIB DVI D 480p 60Hz HDMI compatible Trigger event on mask violation pulse gt 0 5 us 4 MB for references formulas device settings language and help functions on internal file system or external USB memory available file format HDS on internal file system or external USB memory available file formats BIN CSV TXT HRT on external USB memory available file formats BIN CSV TXT HRT display or acquisition data single or all analog channels on external USB memory available file formats BM
14. 100 g en ea Os READ KEYS FROM LICENCE FILE Software Licences INPUT KEY HC D R Ta J lin i 1 HOO10 Runtime unlimited MANUALLY Key FD907DSBA47C41EADFFFO797C273336C 2 HOO11 Runtime unlimited Key 86619DA02E38EA33B62A4D1691D98D27E 3 HOO12 Runtime unlimited Key EC7DA4902D5B717F2431EBAD1D14146F 3 Once you have entered the voucher code on the homepage http voucher hameg com the licence key will be generated SERIAL NUMBER hIk The ASCII file may be opened with an editor This allows you to read the actual key in plain text You can choose between two methods to enable the desired option with this key an automated reading or manual input The automated reading via USB stick is the fastest and easiest method Store the licence file on a USB stick and then install it to the instrument using the FRONT USB port Press the SETUP key in the GENERAL section of the HMO control panel to open the SETUP menu You will find the LICENCE menu on page 2 2 Press the soft menu key READ KEYS FROM LICENCE FILE to open the file manager Select the required licence file with the universal knob in the CURSOR MENU section and then use the soft menu key LOAD to load it This will load the licence key making the option instantly available by restarting the Instrument TB 200ns T OSs Enter the licence key BACKSPACE Fi ete et el On gt I x CLEAR ALL Press SELECT to select an element CURSOR CURSOR Alternati
15. 80 mV on the falling slope Additionally it is possible to define whether the B event should occur a time min 32ns max 10s or a number min 1 max 216 of times after the A event The level or time or the number of events can be entered numerically with the universal knob or in a submenu In order to do this first select the setting then push the soft key next to NUMERIC INPUT In the window which will open you can enter numbers and units with the universal knob in the CURSOR MENU section or numerical with KEYPAD button 6 3 2 Pulse trigger The pulse trigger allows triggering for specific pulse widths of positive or negative pulses or for pulse width ranges The oscilloscope triggers if a pulse occurs within the signal selected in the SOURCE menu that matches the properties set in the FILTER menu If a pulse fulfills the trigger condi tions the oscilloscope triggers on the trailing slope i e for a positive pulse it triggers on the falling slope and for a ne TB 500us T Os TE Apne ti lt ti lt t2 Not tl ti t2 YY TY Fig 6 4 Pulse trigger menu gative pulse on a rising slope Activate the pulse trigger by pressing the TYPE key 31 in the TRIGGER section Press the FILTER key 36 then you can select additional settings for the pulse trigger in the soft menu There are six diffe rent settings I ti gt t The pulse width ti which will generate the trigger Is greater than the adjustable reference time t
16. IIR Low Pass Filter 1 Root 1 IIR High Pass Filter 1 Amount 1 Pos Wave 1 Neg Wave For each corresponding equation the input channels CH1 CH2 CH3 CH4 and an adjustable constant are allowed as OPERAND sources For the formula MA2 MA1 is added as source for MAS the added source is MA2 for MA4 it is MAS and finally for MAb the added source is MA4 From these five equations you can create save and retrieve a total of five different sets New equations can be added by using the universal knob to select the menu Item NEW tn the formula set editor Pressing the soft menu key ADD al lows you to edit the new equation TB 10ps T 0s Formulary Editor CONSTANT ey VALUE CH4 DECIMAL POINT Formulary 1 MA1 ADD CH1 MA2 SQR MA1 MA3 MUL CH3 MA2 MA4 SOR MA3 MAS MUL MA4 H Woop Use the soft menu key EDIT CONSTANT and the universal knob in the CURSOR MENU section to choose from the following constants 1 Pi 1 2x Pi 10 5 x Pi 1 User 1 to 10 up to 10 customized constants are available For instance if you select USER1 as constant you can press the soft menu key VALUE and use the universal knob in the CURSOR MENU section to select a numeric value You can apply the same method to set a DECIMAL POINT and enter an additional SI prefix soft menu key PREFIX You may choose a UNIT from the same SI prefixes as those that are available in the soft menu EDIT Press SAVE to store these se
17. Interlace mode This describes the so called acquisition peak detection Memory peak detection A hardware peak detection is not available if data is written to the acquisition memory at the ADC s maximum sample rate For slow time bases and the record mode is set to AUTOMATIC or MA WFM RATE not all data from the acquisition memory will display on the screen With peak detection activated when reading out skipped data will be used to create a minimum and maximum value The smallest detectable pulse is the period of the sample rate used to write to the acquisition memory This describes the so called memory peak detection If one of the peak detection modes or a combination of the two are used the corresponding detection mode Is marked with PD in the upper right of the display 5 3 7 High Resolution This mode uses Boxcar Averaging via adjacent detection points i e the converter runs at the maximum sampling rate to increase the vertical resolution to up to 10 bit You can deactivate this function within the menu OFF or you can select the automatic switching mode AUTO Averaging several adjacent sampling rates creates a va lue with a higher degree of accuracy than the input data The resulting data is called high resolution data The pro cess of merging multiple sampling rates to one new va lue only allows a sampling rate that is smaller than the ma ximum value If the HIGH RESOLUTION mode is activated and the cur
18. MEASURE key You can now select the desired type of measurement cursor from the menu Press the soft menu key MEASURE TYPE to open the appropriate selec tlon menu You can specify your selection with the uni versal knob in the CURSOR MENU section of the con trol panel Turn the knob CCW until the entry V MAR KER is marked in blue Press the MENU OFF key to close the menu or wait until it automatically closes after a few seconds Now two cursors will be shown along the signal as well as the measurement results on the bottom of the display Press the universal knob to select the active cursor and turn the universal knob to position the cursor The cursor measurement results will be shown on the bottom of the display In this example with the entry V marker the dis play includes the voltage at both cursor positions their dif ference and the time difference between the cursor posi tions To switch off the cursor press the CURSOR MEA SURE key again Refresh TB 500us T Os CH1 496 MY FAL V Marker CH Vi 971 58 mY 2 979 58 MY CH1 200 mY S t 1 00 ms AV 8 00 mY Quick Start Guide In addition to cursor measurements the most important si gnal parameters can be displayed Your oscilloscope offers these possibilities Display definition of 6 parameters from varying sources Quick display of all important parameters of one source by use of the QUICK VIEW feature Refresh TB 100s T Os
19. MENU OFF button several times to close all me nus and the oscilloscope will trigger on the set data For measurements without measuring object please refer to chapter 12 2 2 58 13 Remote control By default the R amp S HMO Compact series includes a HO720 USB RS 232 interface You can find the drivers for this interface on the product CD enclosed with the instru ment or on the ROHDE amp SCHWARZ Homepage To achieve external control the R amp S HMO Compact series uses the scripting language SCPI Standard Commands for Programmable Instruments The provided USB RS232 dual interface optional Ethernet USB or IEEE 488 GPIB enables you to control the ROHDE amp SCHWARZ instrument externally via remote connection remote control As a result you can access nearly all functions that are available during the manual operating mode via front panel To download a PDF document with a detailed list of supported SCPI commands please visit the ROHDE amp SCHWARZ homepage To enable communication the selected interface and the respec tive settings in the measuring instrument must be identical to the selections for the PC 13 1 RS 232 HAMEG device PC Cable head Tx Data data from oscilloscope to external device Rx Data data from external device to oscilloscope CTS Clear to Send RTS Request to Send ground reference potential connected via oscilloscope measuring category 0 and power cable to the grounding co
20. Network is a bus sys tem primarily developed for automotive applications and is used for the data exchange between controller units and sensors It can be found increasingly in the aviation healthcare and general automation industries At the phy Serial Bus Analysis For CAN BUS trigger and decoding you need the R amp S H0012 op tion or the upgrade voucher R amp S HV112 sical level CAN is a differential signal therefore a differen tial probe e g HZO40 is recommended for decoding alt hough standard probes are equally suitable to capture the signals The standard data rates range between 10 kBit s and 1 MBit s A CAN message primarily consists of a start bit the Frame ID 11 or 29 bit the data length code DLC the data a CRC acknowledge and an end bit 12 7 1 CAN BUS Configuration Prior to the BUS configuration it is necessary to set the correct logic level threshold Please refer to chapter 4 5 The default setting is 500 mV After choosing the BUS type CAN in the BUS menu the configuration menu will open after pressing the soft menu key CONFIGURATION In the menu that opens you can press the top soft menu key DATA to select the desired channel via universal knob in the CURSOR MENU section An analog or a digital channel can be connected to CAN High or CAN Low In addition it is possible to connect a differential probe e g HZ040 to an analog channel When using a differential probe select CAN High if th
21. S F11OESS5D31 OK 28 000ns Write 42 8 EBSDCSSSAESDGFCO OK 6 4113B7263E5B OK 6 SSC3EB 71D9E8 OK 217 740us Write 3B 376 072us Read OE Samples 1 5 5 Data 0x4113B7263E5B Fig 12 2 Example 12C BUS with BUS table Make sure that a complete message of a serial protocol is always displayed on the screen to ensure decoding can function pro perly The Zoom function allows you to view details for any speci fic message Example of I2C BUS table Bus table BUS1 I2C Clock SCL DO Dates SDA D1 Frame Mark Start time s lyoe D _ Length Date Condition 1 197 89200e 6 Read 0x2D 5 0xF110E55D31 OK 2 20 00000e 9 Write Ox42 8 0OxEB8BDC599AE5D6FCO OK 3 217 4000e 6 Write Ox3B 6 0xA113B 263E5B OK 4 3 6 07200e 6 Read Ox0E 6 0x55C3EB 1D9E8 0OK 5 613 58000e 6 Write Ox66 8 0x91B86EE6655E2300 Data Error A BUS table can only be stored if the STOP mode is active The soft menu key TRACK FRAME allows you to scroll through the BUS table and simultaneously jump to the cor responding position in the memory via universal knob to display details on the screen However this is only pos sible if acquisition has been stopped This option is also available in the short menu BUS via soft menu key TRK Track If you activate the soft menu key FRAME TIME DIF FERENCE highlighted in blue the time difference to the previous frame data packet will be displayed in the BUS table This column will be labeled in the table as TIME
22. The UART bus Universal Asynchronous Receiver Irans mitter is a general bus system and the base for many pro tocols One example is the RS 232 protocol It consists of a frame with a start bit 5 to 9 data bits one parity bit anda stop bit The stop bit can assume the single length or 1 5 or twice the length of a normal bit son ow oot nl Sm Fig 12 13 UART bit sequence 12 6 1 UART RS 232 BUS Configuration Prior to the BUS configuration it is necessary to set the correct logic level threshold Please refer to chapter 4 5 The default setting is 500 mV To decode the UART BUS it is necessary to first determine which channel will be connected to the data line This set ting is selected after choosing the bus type UART in the BUS menu and pressing the soft menu key CONFIGURA TION In the menu that opens you can press the top soft menu key DATA SOURCE to select the desired channel via universal knob 53 Serial Bus Analysis TB 20us 7T O0s DATA SOURCE o 5Bit Stop Bits 2 ACTIVE Start Bit Low lll SYMBOL SIZE ON spit Source DO High Active Symbol rate 115200Sy s Idle Time 992ns PARITY a STOP BITS Pal PAGE 1 2 gt PODI 500mM 16Sa If the option R amp S HOO11 resp the voucher R amp S HV111 is ins talled it it only possible to select analog channels as source If the option R amp S HO010 resp the voucher R amp S HV110 is installed both analog and digita
23. V Div 1 MOhm 50 Ohm 0 2 to 20 V R amp S HMOQO2022 2 200MHz 1 mV to 5 V Div 1 MOhm 50 Ohm 0 2 to 20 V R amp S HMO2024 4 200MHz 1 mV to 5 V Div 1 MOhm 50 Ohm 0 2 to 20 V For the complete and latest technical data of each oscilloscope of the HMO series please refer to www rohde schwarz com Tab 2 1 Differences HMO Compact series 10 TB 200ns T Os LANGUAGE INTERFACE PRINTER DEVICE INFORMATION PAGE 1 2 gt helo window is dynamically updated with descriptions of the corresponding setting or function If you no longer re quire help push the HELP key to close the HELP option This will turn the LED indicator for the key off and the text window for the help will close Device Version Date Build EXECUTE Current New Hardware Software Current New Installed languages English 2012 01 12 German 2012 01 05 Available languages Loading file finished HMO_B24 HFU The checksum of the firmware update is correct The R amp S HMO Compact series is constantly being ad vanced You can download the current firmware at www rohde schwarz com Firmware and help if available are packed in one ZIP file Depending on the required extent of the update the ZIP file might include either all updates or simply the instrument firmware for instance After down loading the ZIP file unpack the data to the base direc tory of a USB stick Then connect the USB stick with the USB port of the oscillosc
24. address is allowed Select BYTE OFFSET which defines the distance between the bytes relevant for the trigger condition and the address In most cases the byte offset is zero if the trigger is to occur on the maximum first 24 bits after the address The soft menu key NUMBER OF BYTES allows you to define how many bytes are to be analyzed for the trigger condition The input may be binary or hexadecimal PATTERN INPUT If binary input is selected the individual bits can be assigned to any condition via soft menu key SELECT BIT and the universal knob The soft menu key STATE allows you to set the state H 1 L 0 or X don t care for each bit The state X defines any state If the input is hexadecimal only the entire byte can be set to X If you choose the hexadecimal input use the soft menu key VALUE and the universal knob to set the respective byte TE OUST SONS Refresh 50 MSa LAWALL LUE P DUETS Rg a A l LALLA 51 Serial Bus Analysis value The soft menu key SELECT BYTE allows you to edit the different bytes byte 1 to byte 2 to byte 3 etc sequentially depending on the defined NUMBER OF BYTES The active byte will be marked with a green border in the display window of the trigger condition Press the MENU OFF button several times to close all me nus and the oscilloscope will trigger on the set address and data For measurements without measuring object please refer to chapter 12 2 2 12 5 SPI SSPI BUS For SP
25. and V2 correspond to the voltage between the zero base line of the selected signal and the current po sition of the first or second cursor The value AV corres ponds to the amount of voltage between the two cursors TIME This mode provides two cursors to mea sure three different times and an equivalent fre quency The values t1 and t2 correspond to the time between the trigger and the current position of the first or second cursor The value At corresponds to the amount of time between the two cursors RATIO X This mode provides three cursors to measure a ratio in X direction e g a duty ratio between the first two cursors and the first and the third cursor he measurement values are displayed in four different formats floating point percent degrees and radians RATIO Y This mode provides three cur sors to measure a ratio In Y direction e g an overshoot between the first two cursors and the first and the third cursor The measurement values are displayed in two different formats floating point and percent COUNT This mode provides three cursors to count signal changes that exceed the threshold within a specific interval The interval may be set by using the first two cursors and the threshold may be set by using the third cursor The measurement values are displayed in four different formats number of rising and falling slopes and number of positive and negative pulses 31 Measurements PEAK VALUES This mo
26. and navigate markers manu ally either step by step with the keys or alterna tively by using the smaller one of the knobs 41 In the menu you can also set search crite ria for events The illuminated key 39 allows the selection of the Run and Stop mode When the stop mode is selected the key will light up in red 40 activates the zoom option selects the acquisition modes 43 adjusts the time base speed and 42 enables access to the time base menus To the left of the control panel you also find the soft menu keys 2 to control the menu options Fig 2 3 Control panel of section B C and D 2 3 Screen The R amp S HMO Compact series is equipped with a 6 5 16 51 cm TFT color monitor with LED backlight and VGA resolution 640x480 pixels In the default setting no me nus shown the screen includes 12 scale divisions on the time axis If menus are shown this will be reduced to 10 Introduction divisions Small arrows on the left of the display 1 indicate the reference potentials of the channels The line above the graticule includes status and settings information such as time base trigger delay and other trigger conditions the Current sampling rate and the acquisition mode 2 The short menu to the right of the graticule contains the most important settings of the currently active channel You may select these settings using the soft menu keys 3 TB 100ns T Os Refresh
27. as active when the INTENS PERSIST 7J key is illuminated in white allows you to use the universal knob to change the intensity of the signal dis play to anywhere from 0 to 100 Persistence mode al lows the display of varying signals by enabling the inst rument to write several signals on the display simultane ously It is also possible to induce accelerated aging of si gnals with an adjustable persistence from bOms to infinite Signals occurring less frequently will be displayed in dar ker color and signals occurring more frequently will be dis played in lighter color Press the INTENS PERSIST key in the soft menu to select this mode The soft menu items TRACE GRID and BACKLIGHT allow you to use the uni versal knob in the CURSOR MENU section to adjust the grid intensity and the backlighting The soft menu SET TINGS allows you to select the persistence settings for the signals on the screen The persistence function ensu res that signals will not be replaced when the screen is up dated Instead the signals will pause for a specific amount of time and then slowly begin to fade This type of display is very similar to that of an analog oscilloscope There are three possible settings for the duration of the persistence OFF AUTOMATIC and MANUAL The option MANUAL allows you to set a duration of 5 0ms to infinite by using the universal knob or the KEYPAD TB 10us Ba Os PERSISTENCE a Utornatic BACKGROUND bits i X A AV 3
28. bridge the fuse Any damages incurred by such measures will void the warranty Type of fuse IEC 60127 T2 5H 250V Size 5 x 20 mm 6 1 11 Batteries and rechargeable batteries cells If the information regarding batteries and rechargeable batteries cells is not observed either at all or to the extent necessary pro duct users may be exposed to the risk of explosions fire and or se rious personal injury and in some cases death Batteries and re chargeable batteries with alkaline electrolytes e g lithium cells must be handled in accordance with the EN 62133 standard 1 Cells must not be taken apart or crushed 2 Cells or batteries must not be exposed to heat or fire Storage In direct sunlight must be avoided Keep cells and batteries clean and dry Clean soiled connectors using a dry clean cloth 3 Cells or batteries must not be short circuited Cells or batteries must not be stored in a box or in a drawer where they can short circuit each other or where they can be short circulted by other conductive materials Cells and batteries must not be removed from their original packaging until they are ready to be used 4 Keep cells and batteries out of the hands of children If a cell or a battery has been swallowed seek medical aid immediately 5 Cells and batteries must not be exposed to any mecha nical shocks that are stronger than permitted 6 Ifa cell develops a leak the fluid must not be allowed to come
29. frequency is ex actly identical the figure will stand still and the phase po sition can be deduced from its shape You can activate the XY display by pressing the XY key 19 in the VERTICAL sec tion The display will divided into one large and three small display areas With two channel instruments R amp S HM0722 R amp S HMO01022 R amp S HMO01522 and R amp S HMO2022 only basic XY display is possible The large grid shows the XY display while the small grids show the source for X Y1 Y2 and Z The small windows feature the classical signal display as Y vs time The ana 500 MSa Refresh ci SOURCE X CH1 SOURCE Y1 SPZ SOURCE Y2 eno foe Z SETUP log channels can be selected as source It is possible to define two signals as Y input and display vs x input to per form a comparison Press the soft menu key Z SETTINGS to determine the settings for the Z input The function SOURCE Z allows you to use any of the analog channels as source for the Z input Use the universal knob in the CUR SOR MENU section to select the desired setting The Z in put allows you to control the brightness of the XY sig nal This can be static or dynamic by setting an adjustable threshold or by modulating the brightness with the ampli tude change of the Z input In the MODULATION setting large amplitudes of the Z source will display the XY points The transition is continuous The setting ON OFF dis plays values below the selected thresho
30. individual bits of the logic chan nel by using the soft menu NAME This name will be dis played on the grid and the printout Your first option is to switch the display on ON or off OFF The next option in cludes the menu item LIBRARY After selecting this option you can use the universal knob to choose a name from se veral suggestions The EDIT LABEL key allows you to en ter a completely new name or to customize the suggested name You may enter up to 8 characters Use the ACCEPT key to confirm the name in the editor It will then be shown in the display The name is assigned to that specific signal and will move alongside any set offset value 250MSa Refresh Marker POD1 Fig 11 2 Logic channels settings display 11 3 Display of Logic Channels as BUS You also have the option to combine digital channels to form buses which will then be displayed on the screen as a cell in a table Basically two independent buses are pos sible For instance it would be possible to combine an 8 bit address bus and an 8 bit data bus To select the set tings for the buses press the BUS button in he VERTI CAL section Then press the MENU button in the VERTI CAL section In the menu that opens you can press the top soft menu key BUS to select which BUS you want to de tine B1 or B2 You can use the soft menu key BUS TYPE to choose the BUS type for the display and the analy sis The BUS type determines the bus structure and is or
31. into contact with the skin or eyes If contact occurs wash the affected area with plenty of water and seek medical aid 7 Improperly replacing or charging cells or batteries that contain alkaline electrolytes e g lithium cells can cause explosions Replace cells or batteries only with the identical type in order to ensure the safety of the product 8 Cells and batteries must be recycled and kept separate from residual waste Rechargeable batteries and nor mal batteries that contain lead mercury or cadmium are hazardous waste Observe the national regulations regarding waste disposal and recycling 1 12 Product Disposal Fig 1 2 Product labeling in accordance with EN 50419 The German Electrical and Electronic Equipment ElektroG Act is an implementation of the following EC directives 1 2002 96 EC on waste electrical and electronic equipment WEEE and 1 2002 95 EC on the restriction of the use of certain hazardous substances in electrical and electronic equipment ROHS Once its lifetime has ended this product should be dis posed of separately from your household waste The dis posal at municipal collection sites for electronic equip ment is also not permitted As mandated for all manufac turers by the Electrical and Electronic Equipment Act Ele ktroG ROHDE amp SCHWARZ assumes full responsibility for the ecological disposal or the recycling at the end of life of their products Please contact your loca
32. is activated each column displays a pair of min max va lues The R amp S HMO Compact series displays a signal win dow of 600x400 pixels Yt without zoom This translates into 600 data points per detection When peak detection is activated 600 pairs of min max values or 1 200 data values are displayed he memory depth corresponds to at least the displayed time window time base x signal window grid section in horizontal direction multiplied by the current sampling rate The minimum value is determined by the maximum sampling rate and the maximum signal repeat rate of the oscilloscope The displayed sampling rate corre sponds to the current sampling rate divided by the amount of data skipped while reading out from the acquisition me mory If peak detection is activated the displayed sampling rate corresponds to the current sampling rate Refresh TB 500ns T 260ns 100MSa Fig 5 2 AM modulated signal with maximum repeat rate 5 3 8 2 MAX SAMPL RATE If this function is activated the instrument always sets the maximum sampling rate while using the maximum me mory available The MAX SAMPLE RATE function always uses the maximum sampling rate and displays the maxi 21 Horizontal System Refresh Fig 5 3 AM modulated signal with maximum sampling rate mum amount of data Each column in the signal window displays up to 40 detected data values limited by proces sor performance How much data is currently displayed
33. markers are marked by a vertical line in gray blue The knob X Position allows you to move the signal including the set marker After identifying an important signal position and setting it to the center of the screen using the position knob you can set an additi onal marker This procedure allows you to mark up to 8 in teresting positions within the signal You can toggle bet ween markers by pressing the arrow keys lt P 37 These keys also allow you to center the markers in the middle of the screen This feature enables you to quickly compare marked signal sections in ZOOM mode To delete a marker center it in the middle of the screen and press the SET CLR key once again You can also delete all time markers simul taneously in the marker soft menu With the soft menu key TRIGGER TIME TO ZERO the triger time can be set to Os Additionally CLEAR ALL MARKER removes all defined time stamp markers TB 500us T 0s 1MSa FUNCTION Marker P Wee ws TRIGGER TIME SET TO ZERO Z 100 us CLEAR ALL MARKER Fig 5 6 Marker in zoom mode 5 8 Search Function The search function of the R amp S HMO Compact series ena bles you to search for all slopes pulse widths peaks or ad ditional events in the detection mode that match the ma nually specified search criteria Specific settings are availa ble for each search type Searches can be performed on any analog channel or mathematical signal The searched time base section can b
34. measurement results are displayed at the bot tom of the screen If n a is displayed the measurement is not applicable to the signal For instance this may be the case for a voltage measurement on a POD because only lo gic states without voltage reference are displayed here If 2 is displayed the display does not show a complete mea Surement result For instance the period to be measured may not display completely and can consequently not be identified With the soft menu key CLEAR ALL the activated automa tic measurements will be switched off 8 2 1 Statistics for Automatic Measurements If automatic measurement functions are defined you can view statistics for these parameters on page 2 2 of the AUTO MEASURE menu The statistics allow you to evalu ate a periodic signal over a number of measurements The results Current value Minimum maximum mean value standard deviation and number of measurements are shown in table format in the display window Statistics are available for up to 1 000 captures You can define the de sired number with the universal knob or the KEYPAD key in the CURSOR MENU section The mean value and the standard deviation are identified by means of the most cur rent n values where n corresponds to the set captures soft menu key NO OF AVERAGES Minimum and maximum of the measurement value applies to the total number of measurements The total number of measurements will be displayed in the st
35. of the screen may indicate that the corresponding mathematical curve is also truncated The VOLTS DIV knob can be used to scale an activated mathematical curve TB 200ns T 0s Refresh Fig 9 1 Mathematics short menu The MATH menu includes the Quick Mathematics QM and formula sets MA Quick Mathematics is designed for simple and quick calculations The formula sets allow for mular combinations 9 1 1 Quick mathematics OM Pressing the MATH key in the VERTICAL section will acti vate the math short menu The lowest soft menu key ac tivates the Quick Mathematics QM or the formula editor MA In the OM short menu the configuration of the math function can be selected with the soft menu key Pres sing the MENU key in the VERTICAL section the configura tion menu will be opened With the first and the third soft menu key OPERAND you can choose the respective chan nel Source for the mathematical calculation You may only choose activated analog channels The central soft menu 35 Analysis key OPERATOR allows you to select the calculation type Following calculation types OPERATOR can be selected sn AZ Addition Multiplication Oi ADD MUL os AN Subtraction Division hee SUB DIV You can use the universal knob in the CURSOR MENU section to select operands and operators 250MSa Refresh Fig 9 2 Quick mathematics menu 9 1 2 Formula editor MA The formula editor menu soft menu key MA allo
36. once on a trigger event Screen and panel LED SDI 0 8 Div Linking peak value and trigger level adjustable between peak values of a signal 10 Div from center of screen 5Hz to 100 MHz HMO72x 5Hz to 150 MHz HMO102x 5Hz to 200 MHz HMO152x 5Hz to 250 MHz HMO202x DC to 100 MHz HMQO72x DC to 150 MHz HMO102x DC to 200 MHz HMO152x DC to 250 MHz HMQO202x 30kHz to 100 MHz HMO72x 30 kHz to 150 MHz HMO102x 30kHz to 200 MHz HMO152x 30 kHz to 250 MHz HM0202x DC to 5kHz selectable in DC and auto level mode min level 1 5 Div gt 5mV Div selectable with AC DC 1MQ 14 pF 2 pF 0 3Vpp to 10 Vpp 100Vp DC AC rising falling both LF noise rejection all analog and digital channels AC line external AC DC rising falling both DC to 70 100 150 200 MHz Min signal amplitude Trigger level range seperately adjustable with different sources Trigger settings for state B time based event based Pulse width Polarity Functions Pulse duration Sources Logic Functions boolean operators time based operators Duration States Sources Video Sync pulse polarity Supported standards Field Line Sources Serial Busses HOO10 1 1 12 Bus representation Option Voucher code HOO10 HV110 BOO Wty 114 HOO12 HV112 Trigger types by protocols I2C SHI UART RS 232 LIN CAN Horizontal System Time domain Yt Frequency domain FFT XY X
37. or parallel buses are active 1 Logic trigger not active The interlace mode will be activated automatically The fol lowing table shows the channel configurations that allow the operation in interlace mode Interlace group 1 Interlace group 2 CH1 CH2 CH3 CH4 ON Off Off Off Off ON Ofi Oft Off Off ON Off Off Oft Oft ON ON Oft ON ofi Oii ON ON Oft Off ON Off ON Tab 5 2 Channel configuration in interlace mode 5 5 ZOOM function The R amp S HMO Compact series features a memory depth of 1MByte per channel This allows the user to record long and complex signals which can be analyzed in full detail with the Zoom function To activate this feature press the ZOOM key 40 The screen will be divided into two sections The upper window displays the entire time base window whereas the lower graticule shows an enlarged section of the upper window The enlarged signal section is marked by two blue cursors in the original signal upper window If several channels are activated in Zoom mode all dis played channels will be zoomed simultaneously by the same factor and at the Identical position Fig 5 5 displays the Zoom window with 100us per division The signal was captured within a time window of 12ms The zoom area lower grid also displays the parameter for zoom time base whereas time Is displayed above the zoom window Z in dicates the zoom time base zoom factor and determines the width of the zoom area displayed in the zoom window
38. several network elements e g measu ring instruments host PC s can communicate over a network with one another some fundamental connections have to be considered so that data communication is error free and unimpaired For each element in a network an IP address has to be as signed so that they can exchange data among themselves IP addresses are represented with the IP version 4 as four Remote control decimal numbers separated by points e g 192 168 15 1 Each decimal number is represented by a binary number of 8 bits IP addresses are divided into public and private address ranges Public IP addresses will be able to route by the Internet and an Internet service Provider ISP can to be made available Public IP addresses can be reached di rectly over the Internet to directly exchange internet data Private IP addresses are not routed by the Internet and are reserved for private networks Network elements with pri vate IP addresses cannot be reached directly over the Inter net so no data can be directly exchanged over the Internet To allow network elements with a private IP address to ex change data over the Internet they require a router for IP address conversion English NAT Network address trans lation before connection to the Internet The attached ele ments can then data exchange over this router which pos sesses a private IP address LAN IP address and also a pu blic IP address WAN IP address via th
39. signal is based on 200 mV DIV 100 mV DIV at 50Q of the ADC analog digital converter The fol lowing screenshot will show a 15 kHz sine wave with a 2V amplitude CH1 yellow original signal CH2 blue Y Out signal TB 20us T 0s 25MSa Refresh Fig 2 15 Y Out signal 13 Quick Start Guide The following chapter is an introduction to the most impor tant R amp S HMO Compact series features and settings al lowing you to use the Instrument promptly The integrated calibrator signal output Is used as the signal source which means that the first steps will not require any additional instruments To optimally set up the instrument position the handle so that the display will be inclined slightly upwards Plug the power cord into the rear panel connector 1 on the front panel The display appears after a few seconds and the oscilloscope is ready for operation Press the AUTOSET key 15 until a beep This will reset the most Important os cilloscope settings to their default settings Make sure to align the passive probes prior to their first use For more information please refer to the probe manual Place the probe in the appropriate position on the ADJ output Take one of the provided probes and remove the protective cap from the tip Apply the probe compensation box to the BNC connector for channel 1 and turn it to the right until it lat ches into place On the right hand s
40. t2 and less than the adjustable reference time t4 1 Timeout Triggers if the combination is still valid after time t Time t defines the trigger time limit for the timeout 250MSa Refresh Marker POD1 Fig 6 6 Logic channels settings display As with the pulse trigger for t t or tt t you can set a re ference time with the soft menu key TIME and the univer sal knob Selecting the soft menu item DEVIATION allows you to use the universal knob and KEYPAD key in the CUR SOR MENU control panel to set the deviation At which de fines the tolerance between set reference time t and valid and real pulse width ti permissible tolerance range To change the threshold values for the logic states one and zero It is necessary to use settings in the chan nel menu MENU key in the VERTICAL section Select the POD 24 If logic mode is already activated the digital chan nels will be displayed in the channel display section of the display framed and marked with POD xxxV Pressing the MENU key 21 in the VERTICAL section allows you to activate one of five predefined logic levels Three of these are fixed for TTL CMOS and ECL After pressing the res pective menu item two customized logic levels may be set from 2V to 8V USER1 USER2 with the universal knob or the KEYPAD key in the CURSOR MENU section The soft menu key SET TO DEFAULT POS amp SIZE activates the dis play for all digital channels of th
41. the envelope curve will be reset AVERAGE This mode calculates the mean value from several spectra It is applicable for noise reduction The soft menu key AVERAGES allows you to select the number of spectra used to calculate the mean value by setting the universal knob in the power of 2 from 2 to 512 The menu entry POINTS allows you to select the maximum number of capture points to be included in the calculation by using the universal knob in the CURSOR MENU section The possible settings are 2048 4096 8192 16384 32768 65536 points The soft menu WINDOWS allows you to improve the FFT display in case of irregularities at the margins of the measurement interval Irregularities are calculated as a leap by a computing algorithm and interfere with the measurement result In the event of a bell shaped window function the margins with lower values are TB 10us TTS MODE Refresh dBm dBY Veff FFT OFF Span 50 MHz Fig 9 8 Advanced FFT menu Center 25 MHZ Refresh multiplied and the impact is damped The soft menu item WINDOW allows you to choose from the following window functions HANNING The Hanning window function is bell shaped In contrast to the Hamming win dow function it is equal to zero at the margin of the measurement interval Therefore the noise level is re duced in the spectrum and the width of the spectral lines is Increased This function is useful for a precise amplitude measurement of a period sig
42. the manufacturing site each instrument undergoes a 10 hour burn in test Nearly every premature failure will be detected in intermittent op eration This is followed by extensive functional quality testing to examine all operating modes and to guarantee compliance with the specified technical data The testing is performed with testing equipment that is calibrated to national standards The statutory warranty provisions shall be governed by the laws of the country in which the RO HDE amp SCHWARZ product was purchased In case of any complaints please contact your supplier Applicable only in EU countries If your instrument still requires repair work customers within the EU can process repairs directly with HAMEG to accelerate the procedures The HAMEG customer service Installation and safety instructions see RMA is available for repair services even once the warranty period ends Return Material Authorization RMA In any event before returning an instrument request a RMA number either via internet http www hameg com or by fax If you require technical support or suitable pack aging original box please contact the HAMEG Service HAMEG Instruments GmbH Service Industriestr 6 D 63533 Mainhausen Phone 49 0 6182 800 500 Fax 49 0 6182 800 501 E Mail service hameg com The product may only be opened by authorized and qual ified personnel Prior to working on the product or before the product is opened
43. to determine if the chip select signal High or Low Active is selected The soft menu key SLOPE allows you to toggle between ri sing falling and both slopes The active selection is always highlighted in blue and is listed after the label CLK in the bit source window Press the MENU OFF button to return to the BUS main menu The soft menu DISPLAY SETUP opens a menu to select the display format and its extent The universal knob in the submenu allows you to choose the format to decode the bus values You can choose from the following formats 1 Binary 1 Hexadecimal 1 Decimal 1 ASCII The decoded values will be shown in the cells tables of the buses according to the selected format The next soft menu key BITS can also be used to activate ON or deacti vate OFF the table display for the individual bus bits You can use the POSITION control knob to determine the posi tion of the bus display on the screen The VOLT DIV knob allows you to determine the size of the table display This may be particularly useful for the binary display as it allows the display of the complete value in up to 4 rows even for short tables 11 4 Cursor Measurements for Logic Channels If the logic channels are activated you may select several parameters via cursor measurements CURSOR MEASURE button For all activated logic channels of a POD you can choose from the following measurement types Mixed Signal Operation 1 TIME The display will include
44. wee bee Hee a R 2 ss 5 Measurement categories 0 000 5 Mains voltage 6 ee 6 Batteries and rechargeable batteries cells 6 PRCGUCTIDIGDOCale wa ur awed yen sar ayes yes bes ee 6 Introduction 000000220000es 8 PROME MIO ghee ec anes e nee pes Aer aur owe anes 8 Control panel ce ee 8 Clee E E E 9 General concept of instrument operation J Basic settings and integrated help 10 Updates to Instrument Firmware Language ADREI gt eronsa oebh05455404 6 645 50004 542044 11 Options A VOUCKE a224 64 62244509 45R 4 R488 11 Self Alignment nannan 0d ae Ss ww Ee oe ed ee 12 Back Panels co ava 5 ak 6 eae ak poe a Sa eR 13 Quick Start Guide 14 Setting up and turning the instrument on 14 Connection of a probe and signal capture 14 Display of signal details 000 14 Cursor Measurements 00000 eee iis Automatic Measurements 2 0 ie Mathematical functions 000 ee 16 Storno dA a a ote ok wad eae eden aes oA ee 16 Vertical system 2222200008 18 COUN 255 eis ete ear k te as bonne aE aes 18 Sensitivity Y Positioning and Offset 18 Bandwidth Limit and Signal Inversion 18 Probe Attenuation and Unit Selection Volt Ampere 0 eee 19 Threshold Setting 0 0 0 0 00 cee eee 19 Name a channel s lt s4 s4252a028085 08a ede rurana ig Horizont
45. 0 key If a finite duration was selected new signals will be written on top of one another within this timeframe where the most recent captures will be displayed more brightly than older signals For instance if 300 ms is selected the display for the signal curves will become darker in 50ms intervals and will be erased after 300ms The AUTOMATIC setting allows you to select the automatic configuration of the persistence If this setting is activated the instrument attempts to select the optimal time If OFF is selected the persistence function is deactivated Another available option is the BACKGROUND function With this key you can activate or deactivate a mode which allows older signal curves to not disappear entirely after the set persistence time Instead these signals will con tinue to be displayed in the background with low bright ness This display is useful for the analysis of peak values in signals for instance The R amp S HMO Compact series features a key that allows you to switch directly to the XY display Two signals will be displayed simultaneously one in Y direction and one In X direction This implicates that the time base X will be re placed by amplitude values of a secondsource The resul ting signal curves for harmonic signals are known as Lissa jous figures and allow the analysis of frequency and phase position for these two signals In case of a nearly identi cal frequency the figure will rotate If the
46. 1 ti lt t he pulse width ti which will generate the trigger is less than the adjustable reference time t 1 ti t The pulse width ti which will generate the trigger equals the adjustable reference time t The reference time is a combination of time t plus the adjustable deviation 1 ti t he pulse width ti which will generate the trigger Is unequal to the adjustable reference time t The reference time is a combination of time t plus the adjustable deviation 1 t1 lt tj lt t2 The pulse width ti which will generate the trigger is less than the adjustable reference time t2 and greater than the adjustable reference time t1 1 not t1 lt tj lt t2 he pulse width which will generate the trigger is greater than the adjustable reference time t2 and less than the adjustable reference time t4 The time resp the variation tolerance zone can be se lected via universal knob or KEYPAD key in the CURSOR MENU section Selecting the corresponding soft menu item allows you to set any of these settings for positively POS or negatively polarized pulses NEG For the asso ciated positive pulse you define the width from rising to falling slopes and accordingly for the associated negative pulse from falling to rising slopes As is consistent with the principle triggering always occurs on the second slope of the pulse 6 3 3 Logic Trigger You may test all settings in the logic trigger without any active logic probes R amp S H03508
47. 3 54 56 57 trigger event 25 29 53 54 55 trigger Input 13 52 trigger level 9 24 26 27 trigger modes 25 trigger signal 9 25 26 34 trigger slope 9 trigger source 23 25 27 34 Triggersystem 25 trigger time 20 23 28 47 53 trigger type 9 25 26 27 29 54 U UART bus 53 UART RS 232 Bus 53 UART trigger settings 55 USB Ethernet 13 USB interface 59 60 USB port 8 11 12 13 USB SUCK 8 37 V video modulation 28 virtual screen 8 V marker 15 32 47 Voltage variation 58 y Y Output 13 Z Z input 31 zoom 24 25 ZOOM 14 20 23 24 zoom function 25 67 5800 4428 02
48. 5_02_10_0810 HMS X_2015_02_10_0816 HMS X_2015_02_10_0817 Screenshot Name M01024_2015_02_26 151230 as BMP as GIF Fig 10 6 Screenshot Modul Press the RUN STOP key to stop acquisition prior to printing which will allow a correct printout To achieve prints with well defined contrasts when using the color mode INVERTED the curve intensity should set to via INTENS PERSIST and universal knob approx 70 10 5 Formula Sets In the soft menu FORMULARIES you can import or export formula sets This allows the data exchange between diffe rent storage media internal memory external USB sticks The exact procedure is described in chapter 9 1 2 10 6 FILE PRINT Key Definition The FILE PRINT key in the GENERAL section allows you to save Instrument settings curves screenshots and screenshot settings simultaneously with just one key As described in previous chapters you must first select the corresponding settings for storage location name etc The soft menu key FILE PRINT in the SAVE RECALL main menu opens the setup menu for the FILE PRINT key You may choose from the following actions DEVICE SETTINGS Stores settings TRACES Stores curves 1 SCREENSHOTS Stores screenshots 1 SCREEN amp SETUP Stores screenshots and settings 1 PRINT Prints directly to a compatible printer Postscript some PCL and PCLX capable printer If you press the respective soft menu key to activate the requi
49. ART No Signal No Signal Data No Signal Pattern Bit O Bit 1 Bit 2 Bit 3 Counter Bit O Bit 1 Bit 2 Bit 3 Tab 13 1 Pin assignment of the BUS signal source Press the key SETUP in the GENERAL section and the PROBE ADJUST amp BUS SIG SOURCE to open the BUS si gnal source menu on page 2 2 Now you can select the operational mode for the bus signal source An information box is displayed for each operating mode displaying the corresponding connector assignment By pressing the re spective soft menu key you can open a submenu with the bit rate setting of the selected operating mode The square wave signal for probe compensation is available with 1 kHz low frequency compensation and 1 MHz high frequency compensation In the automatic mode standard setting the output will provide 1 kHz at sweep speeds from 100 us div at faster sweep speeds 1 MHz will be available These signals allow to check the settings for parallel and optional serial bus analysis TB 100yus T Os i 100 kBit s Output I2C Data 1000kBit s Level ca 1V Pin Assignment 400KBit s 2 Clock SCL 3 Data SDA Fig 12 3 2C BUS signal source 49 Serial Bus Analysis 12 3 Parallel Parallel Clocked BUS The R amp S HMO Compact series has a PARALLEL and PA RALLEL CLOCKED BUS function installed ex factory and is able to analyze up to 7 bit lines The soft menu key BUS WIDTH and the universal knob allow you to select the number of bit lines The sof
50. Digital Oscilloscope R amp S HMO Compact Series ser Manual 76K Cin MO6h LOGIC CH ee Test amp Measurement User Manual General information regarding the CE marking CE DECLARATION OF CONFORMITY Manufacturer ROHDE amp SCHWARZ GmbH amp Co KG Muhidorfstr 15 D 81671 Munich The ROHDE amp SCHWARZ GmbH amp Co KG herewith declares conformity of the product Product name Digital Oscilloscope Type R amp S HMO72x R amp S HMO102x R amp S HMO0152x R amp S HM0202x with H9720 Options H0730 H0732 HO740 complies with the provisions of the Directive of the Council of the European Union on the approximation of the laws of the Member States s relating to electrical equipment for use within defined voltage limits 2006 95 EC LVD 1 relating to electromagnetic compatibility 2004 108 EC EMCD 1 relating to restriction of the use of hazardous substances in electrical and electronic equipment 2011 65 EC RoHS Conformity with LVD and EMCD is proven by compliance with the following standards EN 61010 1 2011 EN 61326 1 2013 EN 61326 2 1 2013 EN 55011 2009 A1 2010 EN 61000 3 2 2014 EN 61000 3 3 2013 For the assessment of electromagnetic compatibility the limits of radio interference for Class A equipment as well as the immunity to interference for operation in industry have been used as a basis Date 12 02 2015 General Information Regarding the CE Marking ROHDE am
51. EEE bus cable 2 Signal Cables In general measuring cables for the transmission of signals between measu ring point and measuring instrument should be kept as short as possible Unless the manual prescribes an even shorter maximum cable length signal cables input output signal control may not exceed a length of 1m and may not be used outside of buil dings In general all signal cables must be used as shielded conductors coaxial cable RG58 U It is important to ensure pro per ground connection Signal generators require the use of double shielded coaxial cables RG223 U RG214 U 3 Impact on Instruments If strong high frequency electric and magnetic fields are present it may occur despite diligent measurement setup that unwanted signal units are injected into the instrument via connected cables and lines This does not result in destruction or shutdown of ROHDE amp SCHWARZ instruments In individual cases external circumstances may cause minor variations in the display and measuring values beyond the selected specifications 4 RF immunity of oscilloscopes 4 1 Electromagnetic RF field The influence of electric and magnetic RF fields may become visible e g RF superimposed if the field intensity is high In most cases the coupling into the oscilloscope takes place via the device under test mains line supply test leads control cables and or radiation The device under test as well as the oscilloscope may be effected by su
52. EL DELETE This example shows the analysis of an electrical energy waveform The voltage across the load is being measured with differential probe and applied to channel 2 The cur rent is being measured with a current probe and applied to channel 1 First the conversion factor of the current probe 100 mV A will be entered The formula set 1 will be ope ned and the equation MA1 will be defined After pushing the soft menu key EDIT the appropriate functions can be selected using the universal knob in the CURSOR MENU section In this example channel CH1 will be multiplied with a constant 0 1 and the unit A Ampere will be assi gned This ensures the correct display of the scale factors as well as the units for cursors and automatic measure ments The equation MA1 can be named CURRENT using the soft menu key LABEL TB 200ns T Qs Formulary 1 EQUATION MAl MUL CH1 0 1 A MA3 MA2 MUL MA1 CH2 W i EDIT MA3 J MA2 dt Display new Fi ae OPERATOR i Integral OPERAND 1 OPERAND 2 37 Analysis Afterwards a new equation MA2 will be entered and ad justed The result of the equation calculation CURRENT and channel CH2 will be multiplied which will be yielded to a power curve The equation MA2 can be named PO WER using the soft menu key LABEL At last a 3rd equa tion MA3 will be added to the set of formulas which will be defined as the integral of the equation POWER The equatio
53. Edge Trigger The TYPE key 31 in the TRIGGER section allows you to set the trigger type This opens a menu with corresponding op tions If the edge type is not active highlighted in blue you can press the respective soft menu key to select this type The slope type rising falling or both can be set di rectly with the SLOPE 35 key This will shift the setting for ward by one i e from rising to falling slope to both slo pes and pressing the key yet one more time will trigger another rising slope The center of the status line on the top of the display and the display above the SLOPE key 35 show which slope type has been selected AUTO LEVEL Fig 6 2 Coupling modes with slope trigger The FILTER 36 key allows you to select how to couple the signal for the trigger circuit AUTO LEVEL Automatic filter setting default setting AC The trigger signal is coupled via high pass filter with a minimum cut off frequency of 5 Hz which suppresses the DC portion of the triggering signal With a changing DC portion the trigger level remains at the set point in the AC signal The trigger tyoe AUTO AUTO NORM key includes the Peak Peak mode which sets limits for the trigger in the AC signal This setting means that the trigger condition will be met for any applied signal without having to set the level For the trigger type NORM AUTO NORM key the Peak Peak mode is deactivated allowing the trigger level to be m
54. Es Pe Pee eee ee ee EO 43 IGA SCreenSNOlSca sitnttedeece va tex oe oes oe eed 44 UAIFI 2 3 4 0 4e2 04 pee cae se bee Rhee bene ee 44 109 Formula SelSe iu c du ude Ded dee ee oes bere es 44 10 6 FILE PRINT Key Definition 05 45 11 Mixed Signal Operation 46 11 1 Logic Trigger for Digital Input 0 46 11 2 Display Functions for the Logic Channels 46 11 3 Display of Logic Channels as BUS 46 11 4 Cursor Measurements for Logic Channels 47 11 5 Automatic Measurements for Logic Channels 47 12 Serial Bus Analysis 48 12 1 Software options license key 48 12 2 Serial Bus Configuration 000 48 12 3 Parallel Parallel Clocked BUS 50 WA POBUD ganer a ee oh ee ee Ge A 50 12 SPIO Or MOU Ss ce ceeeehecdesdow ARREA 52 126 VARIR Z202 BUS 2 sa exdeee exe eas ot ETIEN IEAS 53 WZ CRN Os 2 oes abs aoe ean Gein Few eb Oe ee 55 12 3 INS soccer aprcetcuanteutessecasceceass 56 13 Remote control 22220005 58 Woe W622 922 oat osteo h sun bee eotnte heehee Bae os 58 12 MWSB a see debe as bene dae a eee oy ek ioe 59 13 3 Ethernet Option HO730 HO 32 59 134 JEEE 466 277 GPIB Option MOMON risia rrrssiss 61 14 Specifications 220008 62 15 Appendix c626604444 04465844464 w ddd deas 65 151 LISMOMMNGUICS 4 02502 600 eet ce ewe egun ces dae bs 65 Ws IOS Cat age cb aes eee eee e
55. I F Farad IQ Ohm 1 H Henry VA Volt per Ampere 1 percent IW Watt 1 degree I VA Volt Ampere ITI Pi VAr reactive power Pa Pascal dB decibel im meter m Milli 10 3 1g Acceleration IU Mikro 10 68 1 C Degress Celsius mn Nano 10 9 1K Kelvin 1p Piko 10 12 1 F Degrees Fahrenheit 1 f Femto 10 15 rN Newton la Atto 10 18 IJ Joule IZ Zepto 10 21 1C Coulomb Ly Yokto 10 24 Wb Weber 1K Kilo 103 iT Tesla 1M Mega 106 dez decimal 1G Giga 109 bin binary el Tera 1012 1 hex hexadecimal iP Peta 1015 1 oct octal LE Exa 1018 DIV Division division IZ Zetta 1021 1px pixel 1Y Yotta 1024 1 Bit Bit 1 dBm decibel milliwatt 1Bd Baud 1 dBV decibel Volt I Sa Sample IS second The selected equation unit will be applied to the chan nel description cursor types and automatic measurement types The equation name is listed in the formula set editor and is used as label in the curve window The soft menu key DELETE removes the equation from the formula set An equation consists of an operator mathematical func tion and up to two operands Use the universal knob in the CURSOR MENU section to choose the operators 1 Addition 1 Reciprocal Subtraction 1 Inverted 1 Multiplication 1 Common logarithm 1 Division 1 Natural logarithm 1 Maximum 1 Derivation 1 Minimum 1 Integral 1 Square 1
56. I SSPI BUS trigger and decoding you need the R amp S HO010 resp R amp S HOO11 option or the upgrade voucher R amp S HV110 resp R amp S HV111 The Serial Peripheral Interface SPI is used to communicate with slow peripheral devices in particular for the transfer of data streams The SPI bus was developed by Motorola today known as Freescale however it has not been for mally standardized Generally this is a bus with clock and data lines and a select line 3 wire If only one master and one slave are present the select line may be deleted This type of line is also called SSPI Simple SPI 2 wire A SPI BUS has the following properties 1 Master slave communication 1 No instrument addressing No acknowledge to confirm data reception 1 Duplex capability The address decoding is a 7 bit value The 8th bit of write read is decoded in color not in the HEX value of the address Most SPI buses have 4 common lines 2 data lines and 2 control lines 1 Clock to all slaves SCLK 1 Slave select or chip select lines SS or CS 1 Master Out Slave In Slave Data Input MOSI or SDI 1 Master In Slave Out Slave Data Output MISO or SDO If the master generates a clock pulse and selects a slave data can be transmitted in either one direction or si multaneously in both directions only available with R amp S HOO10 R amp S HV110 CLE oP MOSI Waster MISO Fig 12 9 Simple configuration of a SPI BUS 12 5 1 SPI
57. IG GER section and choose the soft menu key SERIAL BU SES Then press the SOURCE button in the TRIGGER sec tion and choose I2C Bus This will only be available if it was configured earlier Press the FILTER button in the TRIGGER section to list all available 12C trigger conditions Following trigger conditions can be defined START The oscilloscope triggers on the frame start sequence he start sequence is the falling slope on SDA when SCL is high STOP The oscilloscope triggers on the frame stop sequence The start signal is the rising slope on SDA when SCL is high RESTART The oscilloscope triggers if a new start sequence occurs before the stop condition The new start signal is a repeated start signal 1 NOT ACKNOWLEDGE The NOT ACKNOWLEDGE bit is the 9th bit in a data or address unit of the SDA line For NOT ACKNOWLEDGE the Acknowledge bit is on SDA high although it should be low READ WRITE The soft menu key READ WRITE offers additional trigger options You can use the soft menu key MASTER to toggle the trigger condition between read and write access The 8th bit of the first data unit depending on the address length is used to distinguish between read and write access The selected condition Is displayed in the 2C settings window and is highlighted by the menu key in blue The address length in bit defines the maximum number of slave addresses to be used with the bus For a 7 bit address length the maxim
58. L section of the control panel is used to change the time base The current time base setting e g TB 500ns is displayed in the up per right above the graticule To the right of the display you can see the trigger time position in relation to the default setting The default setting shows the trigger time posi tion in the center of the display with 50 of the signal dis play before and 50 after this trigger position The X PO SITION knob mj allows continuous adjustment of the x po sition The maximum values allowed depend on the time base setting Pushing the SET CLR key resets the value to its reference position as long as the marker or search functions have not been applied The arrow keys lt P 37 allow you to change the X position by a fixed amount of 5 divisions in the res pective direction The MENU 42 key opens a menu to de termine the function for the arrow keys lt P 37 and the SET CLR key As described above these keys allow you to set the X position Alternatively you can use them to mark events within the signal with the option to navigate bet ween up to 8 markers In the submenu NUMERIC INPUT you can enter any horizontal position directly This menu also allows you to activate and set search functions You can also set the TIME REFERENCE position for the trig ger reference point from 5 divisions to 5 divisions with O being the center and default setting 20 5 3 Acquisition modes
59. N is ac tivated a scroll bar will display to the right of the display graticule Use the universal knob to upload and download the display window within the 20 divisions of the virtual screen You will find a detailed description of the VIRTUAL SCREEN option in the next chapter The following settings can be selected DOTS ONLY If this option is activated ON only the acquired data points will be shown This means that the data points of all signals will not be connected by vertical lines If this option is deactivated OFF interpolated data points will also be shown INVERSE BRIGHTN This setting inverts the brightness of the displayed signals Normally frequently captured dots will be displayed more brightly than rare dots The INVERSE BRIGHTNESS option reverses the circumstances Rare events display a higher brightness compared to frequent events To capture rare events in a signal this setting can be used in combination with persistence FALSE COLORS This setting converts the brightness levels of the displayed signals to a color scale ranging anywhere from blue magenta red and yellow to white Thanks to the higher contrast users can view signal details more easily This setting applies to all signals simultaneously GRID This soft menu allows you to display the graticule as LINES the graticule is divided into horizontal and vertical divisions as CENTER CROSS displays one horizontal and one vertical zero line
60. P GIF PNG color inverted grey scale on internal file system or external USB memory date and time 100V to 240V 50 Hz to 60 Hz CAT II max 45W max b5W in line with IEC 61010 1 ed 3 IEC 61010 2 30 ed 1 EN 61010 1 EN 61010 2 030 CAN CSA C22 2 No 61010 1 12 CAN CSA C22 2 No 61010 2 030 12 UL Std No 61010 1 Srd Edition UL61010 2 030 5 C to 40 C 20 C ito 70 5 to 80 without condensation 285 x 175 x 140 mm 2 5kg All specifications at 23 C after 30 minutes warm up Accessories included HO720 RS 232 USB dual interface line cord printed opera ting manual software CD 2 4 probes model depending HZ154 up to 100 MHz 10 1 1 1 switchable or HZO10 up to 250 MHz 10 1 Accessories HO3508 8 channel logic probe 850 MHz 4 pF HZ115 PZO HZO30 HZO040 HZ041 HZO50 IAS HZS HZ52 HZ6 HZO90 AACS Differential Probe 100 1 1000 1 High voltage probe 1000 1 400 MHz 1000 Vims 1 GHz active probe 0 9pF 1 MQ Active differential probe 200 MHz 10 1 3 5 pF 1 MQ Active differential probe 800 MHz 10 1 1 pF 200 kQ AC DC Current Probe 30A DC to 100 kHz AC DC Current Probe 100 1000A DC to 20 kHz 150 MHz passive probe 10 1 12 pF 10 MQ 250 MHz passive probe 10 1 10 pF 10 MQ 100 MHz passive probe 100 1 4 5 pF 100 MQ Carrying case for protection and transport 4RU 19 rackmount kit Appendix 15 Appendix 15 1 List of figures Fig Fi
61. Reference signals 1 Traces 1 Screenshots 1 Formularies Out of these data types signals and screen displays can only be stored on a USB stick All other data types can be stored on a USB stick or internally in the instrument to non vola tile storage media To store data you have to define the data type and the destination to be used for storing First attach a USB stick to the front USB connector of your oscilloscope Press the Save Recall 12 key to open the respective menu Select the type of data you wish to store by pressing the res pective soft menu key in this example SCREENSHOTS This will open the settings menu In the top menu make sure that T Os TB 10s Pee t A B i 4 CREENSHOT 4 Foon A 4 e e Storage Front is selected Press the soft menu key to open the menu where you can select these settings It is impor tant to connect a USB stick with the front USB connector of your oscilloscope which must be recognized by your instru ment Pressing the soft menu key SAVE allows you to save a screenshot using the default file name the current file name is displayed in the menu item FILE NAME You can also se lect a name for the target file with up to 8 characters Select the menu item FILE NAME and use the universal knob to en ter the name in this example TRC TB 200us 7 0s STORAGE FORMAT COLOR MODE Quick Start Guide Press the soft menu key ACCEPT The oscilloscope ac
62. SSPI BUS Konfiguration Prior to the BUS configuration it is necessary to set the correct logic level threshold Please refer to chapter 4 5 The default setting is 500 mV With 3 wire SPI the CS chip select has to be connected to the external trigger input The level can be set in the BUS configuration menu via EXTERNAL LEVEL 52 Certain settings are necessary to guarantee that a SPI bus is decoded correctly First you have to determine if a SPI system with or without chip select is available 2 wire or 3 wire SPI This can be done in the BUS setup menu when selecting the BUS type For a 2 wire SPI system select the option SSPI for a 3 wire SPI system select the option SPI Then press the CONFIGURATION button to open the setup menu for SPI Use the top soft menu key SOURCE to se lect the respective channel for chip select CS clock Clk and data Select the respective soft menu key CS Clk or Data and then use the soft menu key DATA and the univer sal knob to the select the respective source channel For the 2 wire SPI select the possible TIME OUT instead of a chip select source During the time out data and clock line are at Low When the time out has been reached a new frame begins If the time intervals between the data pa ckets are shorter than the time out these packets belong to the same frame You can select the dead time via uni versal knob or via numeric input KEYPAD button A small window provides information
63. The soft menu key COMPARE defines the comparison function If the pattern includes at least one X don t care it is possible to trigger on a value equal or not equal to the specified value If the pattern includes only O or 1 it is possible to trigger on an area greater than or less than the specified value The PATTERN INPUT may be binary or hexadecimal If you choose the binary input the soft menu key BIT and the universal knob allow you to select which individual bits within the data are to be edited Select the option STATE to assign a logic state to each bit High H 1 Low L Q0 or X don t care The state X defines any state If you choose the hexadecimal input the soft menu key VALUE and the universal knob allow you to set the value for the respective byte If the input is hexadecimal only the entire byte can be set to X Use the soft menu key BYTE to toggle between bytes ID AND DATA The soft menu IDENTIFIER AND DATA and the soft menu key IDENTIFIER SETUP include the same settings as the soft menu IDENTIFIER The soft TB 20us T 0s LIN B1 62 5MSa Version Any Bit rate 19 2kBit s Identifier Equal 0x04 000100 3Byte Equal 0x33 05 13 00110011 00000101 00010011 Fig 12 23 LIN data trigger menu 57 Serial Bus Analysis menu DATA SETUP allows you to specify the data bit pattern or HEX values for up to 8 bytes Available Comparisons for address and data values are EQUAL and NOT EQUAL Press the
64. U sec tion are used to enter values with a resolution of 1 100 divi sion A mask includes a minimum and a maximum value for each captured data value The minimum and maximum va lue for a Source Curve with only one value per data are iden tical The width indicates the distance between the periphe ral points and the original point The greater the selected va lue is the greater are the potential curve deviations in the amplitude The tolerance mask is displayed in white in the background Ihe generated and edited mask can be used immediately for the test however it is only saved tempora rily in the instrument storage The soft menu key SAVE can be used to store the mask permanently to a USB stick or to the internal memory Press the key MENU OFF to return to the start menu Press the soft menu key LOAD MASK to open a file browser which allows you to load previously stored masks for the test file extension HMK A loaded mask can be changed in the menu NEW MASK Changes will be applied to the file when the mask is edited and saved Pressing the soft menu key ACTIONS in the PASS FAIL main menu opens a menu with the available actions The following four actions can be performed 1 Audio signal if the tolerance limits have been exceeded 1 Stop for first time failure number is adjustable 1 Pulse for first time failure emits a pulse at the AUX output in case of failure 1 Screen dump for first time failure on USB stick 1 Scree
65. U section This key is used to select or confirm input in all menus for alohanumerical input and for the file manager Introduction DESKEW Os Off PROBE THRESHOLD 500 mY LABEL PAGE 2 2 DEDEDE TEDER E E E amp amp amp Fig 2 5 Selection of basic soft Fig 2 6 Basic soft menu elements menu elements for settings and navigation Fig 2 7 shows there are two basic soft menu parts You can select the respective element by pressing the corre sponding soft menu key and the element will be marked in blue Alternatively you can press the soft menu key to toggle between function options The menus are used as shown in Fig 2 8 For functions that need to be activated and require value selections you may toggle between OFF and the set value e g DC OFFSET function The round ar row in the menu window indicates that the value is to be set by means of the universal knob in the CURSOR MENU control panel If the respective function includes an additi onal menu level it will be indicated by a small triangle on the bottom right of a menu item If additional menu pages are available you can navigate these on the same level by using the last menu item It includes the number of menu pages on this level as well as the current page number You can advance to the next page by pressing the approp riate soft menu key Once the last page was listed the dis play will loop back to the first page 2 5 Basic settings and in
66. YPE button in the TRIGGER con Jill Version Any Bit rate 19 2kBit s BIT RATE Defined Bit RatJ PREDEFINED 19 2kBit s zi Fig 12 22 Menu for the definition of a LIN bus Serial Bus Analysis section of the control panel and choose the soft menu key SERIAL BUSES Then press the SOURCE button in the TRIGGER section and choose LIN This will only be availa ble if it was configured earlier Press the FILTER button in the TRIGGER section of the control panel to list all available CAN trigger conditions START OF FRAME Triggers on the stop bit of the synchronizing field WAKE UP Triggers after a wake up frame 1 ERROR C ldentifies various errors in a frame This menu allows you to choose one or several error message types as trigger condition LIN BUS applies a complex checksum calculation Cyclic Redundancy Check The transmitter calculates the CRC and transmits the result in a CRC sequence The receiver calculates the CRC in the same manner A CRC error occurs if the calculated result deviates from the received CRC sequence With soft menu key PARITY triggering occurs on a parity error Parity bits are bit 6 and bit 7 of the identifier The correct transfer of the identifier is verified With the soft menu key SYNCHRONISATION triggering occurs if the synchronizing field indicates an error 1 ID With the soft menu key IDENTIFIER you can set the trigger to a specific identifier or a specific identifier range
67. YZ mode VirtualScreen Component tester Reference signals Channel deskew Memory Zoom 0 8 Div 10 Div from center of screen 32ns to 17s resolution min 8ns 1 to 216 events positive negative equal not equal lower higher within without a range 32ns to 17s resolution min 8ns all analog channels AND OR TRUE FALSE equal not equal lower higher within without a time range timeout Sns to 2s resolution min 1ns Fl L 2 all logic and analog channels positive negative NTSC SECAM PAL PAL M SDTV 576i HDTV 720p HDTV 1080i HDTV 1080p even odd either line number selectable all all analog channels external AC DC Up to two busses can be analyzed at the same time Color coded display of decoded data in ASCII binary decimal and hexadecimal format Analysis of 12C SPI UART RS 232 signals on analog and logic channels Analysis of 12C SPI UART RS 232 signals on all analog channels Analysis of CAN and LIN signals on analog and logic channels Start Stop ACK NACK Address Data Start End Serial Pattern 32 Bit Startbit Frame Start Symbol Pattern Frame Start Wake Up Identifier Data Error Frame Start Frame End Identifier Data Error main screen time domain and zoom window time domain and frequency domain window FFT voltage XY intensity Z virtual display of 20 Div for all math logic bus reference signals voltage X current Y
68. a message In the menu that opens you can press the top soft menu key to select the FRAME TYPE general data read data or read write data via universal knob The soft menu IDENTIFIER SETUP below allows you to specify the length of the identifier type via soft menu key ID TYPE and universal knob 11 bit base or 29 TB 20us T Os CAN B1 62 5MSa ID DLC Data CRC CH2 CANH fN amp K Bit rate SOkBit s Bit time Sample point 50 Identifier 11Bit Data Equal 0x0X xx XXX XXXXXXXX Data 2Byte Equal 0x13 Ob 00010011 00001011 Fig 12 19 CAN data trigger menu 56 bits for extended CAN frames The soft menu key COMPARE defines the comparison function If the pattern includes at least one X don t care it is possible to trigger on a value equal or not equal to the specified value If the pattern includes only O or 1 it is possible to trigger on an area greater than or less than the specified value The PATTERN INPUT may be binary or hexadecimal If you choose the binary input the soft menu key BIT and the universal knob allow you to select which individual bits within the data are to be edited Select the option STATE to assign a logic state to each bit High H 1 Low L 0 or X don t care The state X defines any state If you choose the hexadecimal input the soft menu key VALUE and the universal knob allow you to set the value for the respective byte If the input is hexadecimal only the entire byte can be s
69. about the current settings If the option R amp S HOO11 resp the voucher R amp S HV111 is in stalled it it only possible to select analog channels as source If the option R amp S H0010 resp the voucher R amp S HV110 is ins talled both analog and digital channels are available as source In addition to assigning the source the soft menu key AC TIVE allows you to select the following settings 1 CS Chip select high or low active low active is the default setting 1 CLK Data will be stored with rising or falling slope rising slope is the default setting DATA Data high or low active high active is the default setting TB 100us T 0s L TE 0 ee A MSB i A j F Ne o o 0 CS DO 499 99m V Clock D1 499 99m Data CH1 499 99m Fig 12 10 Menu for the definition of a SPI bus You can use the soft menu key BIT ORDER to determine if the data of each message starts with the MSB most sig nificant bit or the LSB least significant bit The soft menu key WORD SIZE allows you to select via universal knob how many bits are included per message You may select any value between 1 and 32 bits 12 5 2 SPI SSPI BUS Triggering After the SPI SSPI BUS configuration it will be possible to trigger on various events Press the TYPE button in the TRIGGER section of the control panel and choose the soft menu key SERIAL BUSES Then press the SOURCE but ton in the TRIGGER section and choose SPI Bus This will onl
70. al System 20 Acquisition modes RUN and STOP 20 Time base setting 0 0 cece eee 20 POCGUISIONANOUGS s4 047swrs ieee ys wea dew eds 20 Interlace Mode 0 0 cee eee 73 PDN TNNCT Olds ooh tee oie ea bawe saree ee ss 23 Navigation FUNCHON esoe sadekar ewes oo ov woe 3 Zo Marker FUNGUO gt 42 eeraa dk ee bana tue vag 24 Search FUNCTION s eses iaiaaeaia 24 Trigger System aa nananana annann 25 Trigger modes Auto Normal Single 25 rigger SOUTCeS nauuna ee 20 Trigger type n a ee 26 Content 7 Signal Display nananana nananana 29 Z1 Display Settings esince roai SAG Shed owt aw ew wed 29 7 2 Usage of the Virtual Screen 29 7 3 Signal intensity and persistence functions 30 To IO CISDIGY 2 heed eat ae aes boa teed ae oes De wes 30 8 Measurements 000000e eee 31 8 1 Cursor Measurements 0 0000 eee eee S 8 2 Automatic Measurements 005 OZ 9 Analysis 0000 cece eee eee eee 35 9 1 Mathematical Functions 005 3D 9 2 Frequency Analysis FFT 0058 38 93 QUICK VIEW 404 634 0a0 ede gands oisin err babes 39 9 4 PASS FAIL Test Based on Masks 39 go ACOMPONCNTICS 442 24cccentendaudse auvend ad 40 10 Documentation Storage and Recall 42 10 1 Device settingS 2 0 0 eee 42 10 2 References 0 0 0c eee 42 Wes Cee a cane ena SO
71. al runs through the mean value A pulse that pas ses the mean value only once will not be calculated The measurement will only be applied to the selected channel COUNT This mode counts signal chan ges slopes from Low Level to High Level in the displayed view of the screen The mean value is calculated from the amplitude of the measurement sig nal A slope will be counted if the signal runs through the mean value The measurement will only be applied to the selected channel 34 COUNT This mode counts signal changes slopes from High Level to Low Level in the displayed view of the screen The mean value is calculated from the amplitude of the measurement sig nal A slope will be counted if the signal runs through the mean value The measurement will only be applied to the selected channel TRIGGER FREQUENCY This mode measures the frequency of the trigger signal bases on the period duration ftr The source for the measu rement is the currently set trigger source The frequency will be determined with a hardware counter with a high ac curacy of 5 digits TRIGGER PERIOD This mode measures the duration of periods of the trigger signal with a hardware counter Tr TB 500us T 0s 1MSa PAGE 1 2 Fig 8 2 Menu for the automatic measurements settings The list of available sources only includes displayed channels possible sources are analog digital and mathematical channels The automatic
72. amp S HOO11 R amp S HV111 The option R amp S HOOT11 resp the voucher R amp S HV111 can be used to trigger and decode 2C SPI and UART RS 232 buses on analog inputs only and It only allows the decoding of one serial bus at a time R amp S HOO12 R amp S HV112 The option R amp S HOOT12 resp the voucher R amp S HV112 can be used to trigger and decode CAN and LIN buses on the digital channels option logic probe R amp S HO3508 needed and on the analog Inputs This option allows the decoding of two serial buses simultaneously The options R amp S HOO10 R amp S HOO11 and R amp S HOO12 can be ordered in combination with a R amp S HMO1002 ex factory The upgrade voucher R amp S HV110 R amp S HV111 and R amp S HV112 can be activated by a software license key please refer to chapter 2 7 The analysis of parallel and serial data consists of the fol lowing three basic steps Protocol configuration BUS type protocol specific settings Decoding Display of decoded data Zoom BUS table Trigger Start Stop serial samples The serial bus analysis is performed with 1 8 of the sampling rate 12 2 Serial Bus Configuration Prior to the BUS configuration it is necessary to set the correct logic level threshold Please refer to chapter 4 5 The default setting is 500 mV It is necessary to define a BUS before you can determine the settings for the serial trigger and decoding functions A maxi
73. ardware Software Current REMOVE Installed languages English 2012 01 12 German 2012 01 20 French 2012 01 24 Spanish 2012 01 12 Available languages German English French Spanish UPDATE Updating language Spanish Loading file finished HMO_LNOO HLU The R amp S HMO Compact series includes options which al low you to expand the range of application for the inst rument such as bus analysis functions At this time op tions R amp S HOO10 HOO11 HOO12 resp the upgrade vou chers R amp S HV110 HV111 HV112 are available The bus ana lysis functions R amp S HOO10 R amp S HOO11 and R amp S HOO12 can be purchased ex factory with an instrument of the R amp S HMO Compact series The bus analysis upgrade vou chers R amp S HV110 R amp S HV111 and R amp S HV112 allow for an upgrade at a later date via licence key The installed op tions and vouchers can be verified under Device Informa tion in the SETUP menu I2C SPI VART RS 232 trigger and decoding option on analog and digi R amp S HOO10 R amp S HV110 tal channels 7 I2C SPI UART RS 232 trigger and R amp S HOO1T RaSeHV 111 decoding option on analog channels CAN LIN trigger and decoding op R8S HOO12 R amp SeHV112 tion on analog and digital channels 1 only when ordering with an instrument of the R amp S HMO Compact series 2 Activation of R amp S HMO Compact series options at later date via upgrade voucher 11 Introduction i a4 0
74. at only contain amplitude values no time values Amplitude values are separated by acomma The value pairs are listed as single values without identification Example 1 Q000E 02 1 000E 02 1 Q00E 02 1 Q00E 02 3 000E 02 AS Documentation Storage and Recall HRT HAMEG Reference Time Files with this extension are reference curves of the time domain If the displayed Curve is saved in this format it can be used in the reference menu The HRT format also allows you to generate files that can be reloaded into the oscilloscope via reference menu You can use the soft menu key COMMENT to enter a com ment which will be displayed in the file manager footer once a file has been selected After you made all entries press the menu key STORE to save the selected curve s according to the settings 10 4 Screenshots The most important format to store information for docu mentation purposes is the screenshot A screenshot is an image Tile which shows the current screen content at the time that storage takes place The soft menu STORAGE only allows you to use the USB connection on the front as storage location Selecting the respective storage loca tion is possible when a USB stick has been recognized If a USB stick is connected you can also change create or delete directories Use the soft menu key SORT ENTRIES to sort several settings files by name type size or date Press ACCEPT DIR to confirm the target directory and you will au
75. ata trigger menu Pin assignment of the RS 232 interface Ethernet settings dialog box 28 29 30 30 30 31 92 34 30 18 36 36 o7 3 7 3 7 38 38 39 40 41 42 42 43 43 44 44 45 46 46 48 49 49 50 50 51 51 ol 942 52 Se 99 og 54 54 54 99 93 56 56 97 97 5 58 60 15 2 Glossary A AC coupling 18 Ambient temperature 5 analog channel 24 46 attenuation 18 automatic measurement 34 36 AUTOMATIK 22 Average 22 38 B Bandwidth Limit 18 bidirectional interface 58 Blackman window function 39 brightness 28 29 30 31 bus analysis 11 12 19 48 BUS configuration 48 50 51 52 53 54 55 56 57 bus signal source 8 49 BUS type 46 47 48 52 G CAN bus 55 component tester 8 40 41 component test mode 9 Current probe 19 Cursor measurements 10 15 31 32 47 CVBS signal 28 D DC coupling 14 18 26 Driver 58 duty cycle 15 DVI D connector 13 E ENVELOPE 38 Ethernet 10 60 F fall time 24 39 formula editor 16 35 36 frequency interferences 20 G Grayscale mode 10 H Hamming window function 39 Hanning window function 39 High Pass Filter 36 hysteresis 24 I2C BUS 49 50 IEEE 488 12 13 interlace mode 23 L licence key 12 48 LIN bus 56 57 Lissajous 30 logic channels 46 47 50 logic mode 28 logic probe 8 12 13 25 27 46 48 Logic Trigger 27 46 low pass filter 18 20 26 36 M Marke
76. atistics The key RESET STATISTIC resets the statistics All recorded values are erased This function can be used to restart the statistics at a defined point The key CLEAR MEASUREMENTS deactivates the automatic measurements TB S00uUs T Os 1MSa 1000 RESET STATISTIC CLEAR MEASUREMENTS Current Minimum Maximum Mean o Deviation PAGE 2 2 Fig 8 3 Statistic for Automeasurements Analysis 9 Analysis The R amp S HMO Compact series features different analy sis functions for the collected data records which are dis played on the screen Simple mathematical functions can be performed with the mathematical function while more complex functions and the linking of functions can be ac complished with the formula editor The MATH menu in cludes mathematical functions for the recorded signal ty pes The mathematical functions track the changes of the included signals and only apply to the visible area You can also activate the frequency analysis FFT by pressing the respective key The function QUICK VIEW provides a quick overview for the signal properties A masked based PASS FAIL test allows you to monitor signals automatically 9 1 Mathematical Functions The MATH menu in the VERTICAL section includes mathe matical functions for the recorded signal types The ma thematical functions track the changes of the included sig nals and only apply to the visible area of the screen If a si gnal is cut off at the edge
77. bet ween the zero base line of the selected curve and the cur rent position of the first or second cursor The value AV corresponds to the amount of voltage between the two cursors The value At corresponds to the amount of time between the two cursors To move cursors press the universal knob in the CURSOR MENU section and position the cursor by turning the univer sal knob The measurement types have the following func tions The measurement results are displayed at the bottom of the screen If n a is displayed the measurement Is not applicable to the signal For instance this may be the case for a voltage measurement on a POD because only logic sta tes without voltage reference are displayed here If is dis played the display does not show a complete measurement result For instance the period to be measured may not dis play completely and can consequently not be identified If the function AUTOM SOURCE is activated ON the cur rently targeted channel will be used as source for the mea surement automatically If the setting is deactivated OFF 32 TB 200us T Os 2 5MSa Voltage Tit Nik Ratio X Ratio Y Count Peak Values RMS Mean o Duty Ratio Rise Time 90 Rise Time 80 V Marker SET TO TRACE ia SET TO SCREEN E r f GLUE TO TRACE Time CH1 roy f i Y amp Fig 8 1 Cursor measurements selection menu the channel set under SOURCE will be applied even if it is
78. bit lines above the table display The last entry NAME in the VERTICAL menu opens a submenu which allows you to enter a BUS name This name will be displayed on the grid and the printout Your first option Is to switch the display on ON or off OFF The next op tion Includes the menu Item LIBRARY After selecting this option you can use the universal knob to choose a name from several suggestions The EDIT LABEL key allows you to enter a completely new name or to customize the sug gested name You may enter up to 8 characters Use the ACCEPT key to confirm the name in the editor It will then be shown in the display The name Is assigned to that spe cific signal 12 2 1 BUS Table The soft menu BUS TABLE allows you to configure ex port a list of all decoded messages in storage The table content is protocol specific and the table display can be activated for each individual BUS type The top soft menu key BUS TABLE allows you to activate or deactivate the list view blue highlighted By default the table is displayed at the bottom of the screen Generally a complete message of a protocol is displayed in a row The columns include important information e g address and date of the mes sage The number of rows in the table is identical to the number of complete message frames in storage The de coding results may be saved as CSV file by using the soft menu key SAVE e g save to a USB stick ID Len Data 197 892us Read 2D
79. ble to ex change data with network elements from other networks For a network spreading data exchange the IP address of the standard gateway must also be preset In local net works mostly the first IP address within a network for this gateway router is used Mostly routers in a local net work to be used as gateway have an IP address with a 1 in the last place of the IP address e g 192 168 10 1 13 3 2 Ethernet Settings PC and instrument have to be connected to the same network Otherwise a remote connection is not possible In addition to the USB interface the interface card inclu des an Ethernet interface Configure the settings in the os cilloscope for all necessary parameters after you select ETHERNET as interface and press the soft menu key PA RAMETER You can specify all parameters and assign a fixed IP address You can also assign a dynamic IP address with the activated DHCP function Please contact your IT management to con figure the settings properly If DHCP is used and the system cannot assign an IP address to the R amp S HMO Compact series for instance if no Ethernet cable is connected or the network does not support DHCP it may take up to three minutes until a timeout allows the interface to be configured again TB 100uUs T Os 00 50 c2 45 15 cdd MAC IP 192 168 132 1658 sateway IP Port HTTP Port 80 Transfer Manua 100 Mbps Full Duplex Fig 13 2 Ethernet settings dialog
80. box If the device has an IP address it can be accessed via web browser at this IP since the Ethernet interface includes an integrated web server Enter the IP address in the loca tion bar on your browser http xxx xxx xxx xx This opens CIDR way of writing number of possible host adresses ORO OO 10 255 255 255 255 07030 10 0 0 0 8 10 777 214 172 16 0 0 172 31 255 256 255 240 0 0 172 16 0 0 12 220 2 1 048 574 192 103 0 0 a2 Ge 255 250 200 259 0 0 192 168 0 0 16 210 2 165 534 250725525510 192 168 0 0 24 28 2 264 Table 13 1 Private IP adress ranges class adressrange netquota i host quota max number of networks max number of hosts A 0 0 0 1 127 259 255 258 8 Bit 24 Bit B 128 0 0 1 191 255 255 255 16 Bit 16 Bit C 192 0 0 1 223 259 255 208 24 Bit 8 Bit D 224 0 0 1 239 255 255 255 E 240 0 0 1 250 259 255 205 Table 13 2 Classes of IP adresses 60 126 16 777 214 16 384 65 534 2097 151 254 Reserved for multicast applications Reserved for special applications a window that Includes the device name and type serial number and interfaces with technical information and con figured parameters 13 4 IEEE 488 2 GPIB Option HO740 The optional interface card HO 40 does have a IEEE488 2 connection The settings of the interface can be done in the oscilloscope after chose the IEEE488 as interface and hitting the soft key PARAMETER Further information you can find at the manual of t
81. cepts the name and returns to the settings menu Here you can Store the current image by pressing the soft menu key SAVE Alternatively you can move up one level in the menu by using the OFF key on the bottom and select the menu item FILE PRINT In the following menu press the soft menu key SCREENSHOTS This will assign the function Screenshot to the FILE PRINT 17 key with the selected settings This enab les you to generate a screenshot on your USB stick by pres sing the FILE PRINT key at any given time using any menu TB 200us T Os 2 5MSa Enter a file name BACKSPACE CI DEFAULT NAME Press SELECT to select a character CURSOR CURSOR ACCEPT 17 Vertical system 4 Vertical system You can select vertical set tings using knobs for the ver tical position and the sensiti vity You may also use a menu that is permanently displayed as well as an advanced menu You can select for which channel you want the set tings to be activated by pres sing the respective channel key CH1 CH4 Once a chan nel has been activated the key will be marked by a co lored LED light Additionally the screen display will include a frame around the activated channel with a frame and a color brighter than that of deactivated channels The cor responding short menu Is always visible and you can push the Menu 21 key to activate the advanced menu POSITION Fig 4 1 Front panel area with vertical system controls
82. ch fields Although the interior of the oscilloscope is screened by the cabinet direct radiation can occur via the CRT gap As the bandwidth of each amplifier stage is higher than the total 3dB bandwidth of the oscilloscope the influence of RF fields of even higher frequencies may be noticeable 4 2 Electrical fast transients electrostatic discharge Electrical fast transient signals burst may be coupled into the oscilloscope directly via the mains line supply or indirectly via test leads and or control cables Due to the high trigger and input sensitivity of the oscilloscopes such normally high signals may effect the trigger unit and or may become visible on the TFT which is unavoidable These effects can also be caused by direct or indirect electrostatic discharge Content A 1 2 1 3 1 4 Lo 1 6 Veh 1 8 1 9 1 10 1 11 1 12 Z 2 2 Zo 2 4 29 2 6 2 2 8 Z0 3 1 32 3 9 3 4 a0 3 6 37 4 1 4 2 4 3 4 4 4 5 4 6 5 1 22 D 5 4 5 5 5 6 oF 5 8 6 1 6 2 6 3 Installation and safety Instructions 0 0000 eee ee es 4 OVNIOCIS seesuses hace ase eee eeu ee E 4 UJ OC IMINO ohare bos oo ae ds eS Ee ene ee E 4 Setting up the instrument 05 4 SONU 4 2645 bie tne tee a ee wee an cas een ees 4 Intended Operation 0 0 0 ce ee 4 Ambient conditions 00 00s 5 Warranty and repair 215455445444 54462049n8 500 5 WIGIMMGNGNCE 252 a 6 a oad Waal
83. connected Selecting the LOGIC trigger in the soft menu after pres sing the TYPE key 31 will switch the trigger source to the digital inputs Pressing the SOURCE key 32after selecting this trigger type displays a soft menu for additional set tings and a window to list these settings The soft menu Trigger System i a740 0 Vem a Oks 2 5MSa n Trigger On Fig 6 5 Logic trigger menu key LOGIC CHANNEL enables you to select a logic channel for which you wish to determine the trigger condition Use the universal knob in the CURSOR MENU section for this purpose In the general menu the selected digital Input is marked with a blue background In the field the trigger le vel is marked as High H Low L or X Use the corres ponding soft menu key to select the trigger level The soft menu item COMBINATION allows the logic combination of the digital channels They can be combined by logic AND or OR If AND is selected the set conditions of all channels must be met simultaneously for the input signal so that the combination produces a logic High H as a result If OR is selected at least one of the defined level conditions must be met The last item in this menu is the option TRIGGER ON Use the soft menu key to select TRUE or FALSE This allows you to preselect whether the trigger will be genera ted at the beginning TRUE or the end of the logic condi tion FALSE After selecting the desired set of condition
84. controlled communication master initiates coordinates communication The data is transmitted in bytes without parity based on UART Each byte consists of a start bit 8 data bits and a stop bit Byte field Fig 12 21 Layout LIN byte structure 12 8 1 LIN BUS Configuration Prior to the BUS configuration it is necessary to set the correct logic level threshold Please refer to chapter 4 5 The default setting is 500 mV After choosing the BUS type LIN in the BUS menu press the soft menu key CONFIGURATION In the menu that opens you can press the top soft menu key DATA to se lect the desired channel via universal knob in the CUR SOR MENU section The soft menu key POLARITY allows you to toggle between High and Low the active function will be highlighted in blue An analog or a digital channel can be connected to LIN High or LIN Low You can select any version for the LIN standard version 1x version 2x J2602 or any via soft menu key VERSION and universal knob The option BIT RATE allows you to specify the num ber of transmitted bits per second You can use the uni versal knob to choose from predefined standard data rates and user defined data rates USER The highest possible user defined data rate is 4MBit s You can enter the user defined value via universal knob or numeric input KEYPAD button 12 8 2 LIN BUS Triggerung After the BUS configuration it will be possible to trigger on various events Press the T
85. ct how many bits will be analyzed for the trigger condition You can select a value between 1 and 32 bit via universal knob The serial bit sequence PAT TERN INPUT can be entered as binary or hexadecimal value If you choose the binary input the soft menu key SELECT BIT and the universal knob allow you to select which Individual bits within the data are to be edited The option STATE allows you to assign a logic state to each bit High H 1 Low L 0 or X don t care The state X defines any state If you choose the hexadecimal input the soft menu key VALUE and the universal knob allow you to set the value for the respective nibble 4 bit If the Serial Bus Analysis input is hexadecimal only the entire nibble can be set to X Use the soft menu key SELECT NIBBLE to toggle between nibbles The active nibble will be marked with a green border in the display window of the trigger condition 500 MSa ida EEEL EE sess SOS KORSK YOCSOK DEOS SOO Ox1 0x5 Oxx OxX OxX cs DO 500m Clock Di 500 m Data D2 500m Fig 12 12 SPI data trigger menu Press the MENU OFF button several times to close all me nues and the oscilloscope will trigger on the set bit se quence For measurements without measuring object ple ase refer to chapter 12 2 2 12 6 UART RS 232 BUS Prior to the BUS configuration it is necessary to set the correct logic level threshold Please refer to chapter 4 5 The default setting is 500 mV
86. cted time event width The difference defines the maximum time range by which the specified event width may vary Once you have selected the appropriate search type you can choose the desired SOURCE choose from any of the activated analog channels including mathematical chan nels Use the menu item SETUP to open a submenu where you can choose the settings for the selected search criterium e g greater than a specific pulse width Some of the adjustable parameters may be dependent on the time base for a time base of 100 us Div the smallest time is 2us for 1 us Div the corresponding time value is 20 ns If events match the search criterium they will be highligh ted The soft menu VIEW EVENT TABLE allows you to dis play the search results in a table format Use the arrow keys or the universal knob in the CURSOR MENU section to navigate the events in STOP mode SET allows you to center the selected event When the zoom function is acti vated the selected event will automatically be centered in the zoom window TB 2ms 1 WS FUNCTION Search SEARCH TYPE V1atn 498 200000uUsS 498 240000us 498 200000usS 498 240000uUs 498 200000us Time Z ESE A SR99290 16 932610ms pees sos OM 16 939690ms Search results 1 5 42 Fig 5 7 Search mode with event list Trigger System 6 Trigger System The trigger system of the R amp S HMO Compact series is easy to handle by just ob serving the concep
87. ction of parameters 16 Formula editor 16 Measuring the parameters of two sources 16 Save Recall menu 17 Menu Screenshots 17 Defining a file name 17 Front panel area with vertical system controls 18 Short menu for the vertical settings 18 Probe connection to the probe adjust output 18 Threshold setting and name allocation 19 Name selection 19 Control panel of the horizontal system 20 AM modulated signal with maximum repeat rate 21 AM modulated signal with maximum sampling rate 27 AM modulated signal with automatic setting 22 Zoom function 23 Marker in zoom mode 24 Search mode with event list 25 Front panel control area of the trigger system 25 Coupling modes with slope trigger 26 The type B Irigger 26 Pulse trigger menu 2 Logic trigger menu Zi Logic channels settings display 28 65 Appendix Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig 66 6 7 dele Ta To 7A eee ool G2 Oo ll J2 Ja g4 g p 9 6 I7 9 8 gg 910 IT 10 1 1 2 103 10 4 10 9 10 6 10 7 TEF Liz Ta 12 2 2 124 125 12 6 12a 12 8 12 9 12 10 12i 1212 ZA 1214 12 15 TZ 1G 12 17 12 18 12 19 1220 12 21 Zee i223 ale lo Vi
88. de provides two cur sors to measure the minimum and the maxi mum voltage of a signal within the interval set by using both cursors The values Vp and Vp correspond to the minimum and the maximum voltage The peak value Vpp corresponds to the amount of vol tage between the minimum and maximum value RMS MEAN STANDARD DEVIATION This mode provides two cursors to measure the ef fective value RMS Root Mean Square the mean value and the standard deviation within the interval set by using both cursors DUTY RATIO This mode provides three cur sors to determine the duty ratio between the t two horizontal cursors The third cursor is used to specify the threshold at which the duty ratio is measured RISE TIME 90 This mode provides two cur sors to measure the rise and fall time of the first rising slope in the displayed view of the screen within the time span set by the cursors The rise time iden tifies the time in which the signal rises from 10 to 90 of its amplitude RISE TIME 80 This mode provides two cur sors to measure the rise and fall time of the first rising slope in the displayed view of the screen within the time span set by the cursors The rise time iden tifies the time in which the signal rises from 20 to 80 of its amplitude BIN 104 HEX ox V MARKER This mode pro vides two cursors to measure three different voltages and a time The values V1 and V2 correspond to the voltage
89. deo trigger menu Drawing of the virtual screen area Menu for setting the signal display intensities Persistence function XY settings menu Settings for the Z input Cursor measurements selection menu Menu for the automatic measurements settings Statistic for Automeasurements Mathematics short menu Quick mathematics menu Formula editor for formula sets Entry of constants and units Definition of the current equation Definition of the power equation FFT illustration Advanced FFT menu PASS FAIL mask test Component tester at short Excamples of Component test Basic menu for device settings Storing instrument settings Storage menu for references Menu for storing curves Supported printer example screenshot Modul Definition of FILE PRINT key Optional logic probe R amp S HO3508 Logic channels settings display Menu for the definition of buses Example 12C BUS with BUS table I2C BUS signal source I2C 7 bit address Menu for the definition of IC sources I2C data trigger menu 2C READ WRITE trigger menu 2C BUS Simple configuration of a SPI BUS Menu for the definition of a SPI bus SPI trigger menu SPI data trigger menu UART bit sequence Page 1 of the menu to define a UART bus Page 2 2 UART BUS setup menu Trigger menu UART data UART trigger menu page 2 Setting the SAMPLE POINT during the CAN configuration CAN data trigger menu CAN BUS Layout LIN byte structure Menu for the definition of a LIN bus LIN d
90. depends on the displayed time window and the current sampling rate If peak detection is activated each co lumn displays up to 20 pairs of min max values The me mory depth always corresponds to the maximum acquisi tion memory The displayed sampling rate Is identical with the current sampling rate Peak detection is used if the dis played time window contains more data than 40 signal window columns in the acquisition memory or min max data in the acquisition memory The entire oscilloscope memory can only be read out in STOP mode if the maximum sampling rate has been activated 5 3 8 3 AUTOMATIC This function is the default setting and offers the best compromise between maximum repeat rate and maximum sampling rate selection of memory depth Each column in the signal window displays up to 10 captured data values How much data is currently displayed depends on the dis played time window and the current sampling rate When peak detection is activated each column displays up to 5 pairs of min max values The memory depth is at least twice as much as the storage capacity set for the maxi mum repeat rate limited by the maximum acquisition me Refresh 250MSa Fig 5 4 AM modulated signal with automatic setting mory The displayed sampling rate corresponds to the cur rent sampling rate divided by the amount of data skipped while loading from the acquisition memory If peak detec tion is activated the displayed sampling
91. des more samples in the memory than what can be shown in the display That explains why in this mode you are able to zoom in on the memory The same does not apply to the values in the Y axis amplitude These values apply to a specified axis and can therefore also be scaled in ROLL mode 5 6 Navigation Function The X POS function MENU key in the HORIZONTAL sec tion offers easy trigger time handling and allows it to be entered numerically The soft menu keys allow you to set the trigger time to the minimum or the maximum value for instance You can use the soft menu key TIME REFE RENCE to define where in the signal window to find the trigger point value O The signal is scaled by this refe rence point You can use the universal knob in the CUR SOR MENU section to select the desired setting 23 Horizontal System 5 7 Marker Function Markers allow you to highlight specific positions on the screen e g a rising or falling slope an unexpected sig nal value or a search result Markers can be used to iden tify specific signal sections to zoom in on and to analyze the data more closely Use the soft menu to activate the marker function Press the MENU key in the HORIZON TAL section to open the soft menu Use the universal knob in the menu to select MARKER Once this mode is acti vated you can press the SET CLR key to set a time mar ker at the 6th time unit the menu in the center of the grid must be deactivated The time
92. e Internet If network elements exchange data only over a local net work without connection with the Internet appropriate use private IP addresses Select in addition e g a private IP address for the instrument and a private IP address for the host PC with which you would like to control the instru ment If you might connect your private network with the Internet later via a router the private IP addresses used In your local network can be maintained Since within each IP address range the first IP address is used as network IP address and the last IP address is used as Broadcast IP address in each case two IP addresses have to be taken off from the number of possible host addresses see ta ble 1 Private IP address ranges Apart from the organiza tion of IP addresses into public and private address ran ges IP addresses are also divided into classes Class A B C D E Within the classes A B and C are also include the private IP of address ranges described before The catego risation from IP addresses is for the assignment of public IP address ranges of importance and essentially depends on the size of a local network maximum number of hosts in the network which is to be connected with the Internet see table 2 Classes of IP addresses IP addresses can fix statically or variable dynamically to be assigned If IP addresses in a network are assigned fix an IP address must be preset manually with each network e
93. e Single key to 33 activate this mode This key is highlighted in white when the SIN GLE mode is activated The R amp S HMO Compact series de tection and trigger system Is now activated indicated by a blinking RUN STOP key 39 If the trigger condition is ful filled the trigger system Is activated data is stored and the oscilloscope switches to STOP mode the RUN STOP key Is permanently highlighted in red 6 2 Trigger sources The two resp four analog channels are available as trigger sources SOURCE key If the optional extension with ac tive logic probes R amp S HOS508 including 8 digital inputs is connected up to 8 digital inputs are available as trigger source The soft menu key AC LINE enables you to trigger the trigger at system frequency The trigger signal is ext racted internally from the power supply 25 Trigger System 6 3 Trigger type The trigger type can be selected with the TYPE key 17 in the TRIGGER section A submenu will be opened 6 3 1 Slope trigger The easiest and by far the most frequently used trigger Is the slope trigger The oscilloscope triggers if slopes that were set with the EDGE key occur within the signal se lected in the SOURCE menu The signal slope has to pass through the set trigger level The trigger type EDGE TRIG GER is selected in the Autosetup mode AUTOSET key If for instance you select the pulse trigger and press the AUTOSET key the setting will switch to
94. e instrument has been established and no R amp S HMO Compact series driver is installed the operating sys tem answers with Found New Hardware Only in this case the USB driver must be installed Further informa tion about the USB driver installation you can find in the HO7 20 HO7 30 HO7832 installation guide internal of the dri ver file The following requirement for USB driver installation are necessary 1 R amp S HMO Compact series with an activated USB interface 2 APC with operating system Windows XP VISTA Windows 7 or Windows 8 32 or 64Bit 3 Administrator rights are necessary for the installation of the driver If an error message regarding spelling errors appears the rights to install the driver are not given In this case ple ase contact your IT department to obtain the necessary rights In addition you may use the free software HMExplorer This Windows application offers the R amp S HMO Compact series a terminal function the option to create screenshots and to sort the measured data storage 13 3 Ethernet Option HO730 HO732 For the direct connection with a host PC or indirect con nection over a SWITCH a doubly protected network cable e g CAT 5 CAT 5e CAT 5 CAT 6 or CAT 7 is re quired equipped with an Ethernet plug type the RJ 45 at each end Either an uncrossed or a crossed network cable cross over cable can be used 13 3 1 IP networks IP Internet protocol In order that two or
95. e positive input of the probe is connected to CAN H and the negative input to CAN L If the probe is connected with reversed polarity you must select CAN L i a740 Ute TES CAN B1 62 5MSa CH2 CANH Bitrate SOkBit s Bit time Sample point 50 BIT RATI Defined Bit Rat PREDEFINEL SOkBit s z Fig 12 18 Setting the SAMPLE POINT during the CAN configuration The soft menu key SAMPLE POINT allows you to spe cify the exact point within the bit at which the value for the current bit is sampled You can select a value in per cent 25 to 90 via universal knob or KEYPAD key in the CURSOR MENU section The option BIT RATE defines how many bits are transmitted per second and allows you to select default data rates 10 20 33 333 50 83 333 100 125 250 500 kBit s and 1 MBit s via universal knob Use the soft menu key USER to specify user defined bit rates You can enter the value via universal knob or nu meric input KEYPAD button 55 Serial Bus Analysis 12 7 2 CAN BUS Triggering After the CAN BUS configuration it will be possible to trig ger on various events Press the TYPE button in the TRIG GER section and choose the soft menu key SERIAL BU SES Then press the SOURCE button in the TRIGGER sec tion and choose CAN This will only be available if it was configured earlier Press the FILTER button in the TRIGGER section to list all available CAN trigger conditions START OF FRAME Triggers on
96. e restricted by defining a level Press the MENU key in the HORIZONTAL section of the control panel to activate the search function in the soft menu Use the universal knob in the CURSOR MENU sec tion to select the menu item SEARCH Once this mode 24 is activated you can define events e g a rise time with specific attributes The search function will check these events in STOP mode Press the menu item SEARCH TYPE and use the universal knob in the CURSOR MENU section to select the desired search criteria The following func tions are available 1 Slope Comparable to the slope trigger this function searches for slopes in the signal The point in time of a detected slope corresponds to the point in time when the signal leaves the set hysteresis The soft key LEVEL selects a level for the slope detection of the search function The search function level matches the trigger level of the slope trigger for instance Level and hysteresis will display in the signal window The hysteresis determines the area that the signal has to pass until a valid slope is detected This area also defines the rise time of the slope It is recommended to select a sufficiently large hysteresis to reduce noise on the signal slope Pulse Comparable to the pulse width trigger this function searches for pulses with a predetermined pulse width A pulse always consists of a rising and a falling slope Leaving the hysteresis defines the start and end time of the p
97. e selected group by using default values for the vertical position and size You may also define the name for the current signal by using the soft menu LABEL A library provides a list of predefined names The name can be activated deactivated or edited 6 3 4 Video trigger The video trigger allows you to trigger on PAL NTSC SECAM standard video signals or on HDTV signals After selecting the VIDEO trigger press the SOURCE 32 key The FILTER 36 menu allows you to define additional settings The oscilloscope triggers if the CVBS signal Color Video Baseband Signal selected in the SOURCE menu features the attributes set in the FILTER menu Select the desired standard by pressing the respective soft menu key STAN 28 DARD Use the universal knob in the CURSOR MENU sec tion or press the soft menu key again to select the desired standard The following modes are available 1 PAL 1 NTSC 1 SECAM PAL M 1 SDTV 576i Interlaced HDTV 720p Progressive HDTV 1080p Progressive HDTV 1080i Interlaced The second setting will apply to the polarity of the sync pulse may be positive or negative With positive video modulation the highest brightness is represented in the image by the maximum signal voltage the synchroniza tion pulses are negative with negative modulation they are positive The slopes of the synchronization pulses are used for triggering which explains why a faulty polarity setting Causes Irregular trigg
98. easures the duration of the signal period T The period identifies the du ration between two equal values of one periodi cally repeated signal AMPLITUDE This mode measures the am plitude of a square wave signal VAmp This mode calculates the difference in voltage bet ween the upper and the lower level Vbase and Vtop The measurement will only be applied to the selected channel and requires a minimum of one complete period of a trig gered signal TOP LEVEL This mode measures the mean voltage level of an upper square wave V Top This mode calculates the mean value of the slope without overshoot The measurement will only be applied to the selected channel and requires a minimum of one complete period of a triggered signal Ny voltage level of the lower square wave VBase This mode calculates the mean value of the slope without overshoot The measurement will only be applied to the selected channel and requires a minimum of one complete period of a triggered signal BASE LEVEL This mode measures the mean PULSE WIDTH This mode measures the width of the positive pulse A positive pulse consists of a rising slope followed by a fal ling slope This measurement type identifies the two slo Measurements pes and calculates the pulse width from their time diffe rence The measurement will only be applied to the selec ted channel and requires a minimum of one completely displayed period of a
99. ed into a network quota 192 168 10 0 and a host quota of 0 0 0 10 The allocation takes place via the transformation of the IP address and the subnet mask in binary form and afterwards a bit by bit one logical AND operation between IP address and subnet mask The result is the network quota of the IP address The host quota of the IP address takes place via the bit by bit logical NAND operation between IP address and sub net mask By the variable allocation of IP addresses in net work quota and host quota via subnet masks one can spe cify IP address ranges individually for large and small net works Thus one can operate large and small IP networks and connect if necessary to the Internet via a router In smaller local networks the subnet mask 255 255 255 0 is mostly used Network quota the first 3 numbers and host quota the last number are simple here without much ma thematical expenditure to determine and It can with these Subnet mask up to 254 network elements e g measuring instruments hosts PC s in a network be operated at the same time Often also a standard gateway is present in a network In most local networks is this gateway with the router to the Internet DSL router ISDN router etc is identical Using this gateway router a connection can be manufactured with another network Thus also network elements which are not in the same local network can be reached and or network elements from the local network are a
100. enu item DEVICE INFORMATION opens a window with detailed information on hardware and software of the measuring instrument The soft menu key DEVICE NAME allows you to define a name with up to 19 characters which will be listed when screenshots are printed The soft menu MENU allows you to select whether soft menus are to be closed manually or automatically after 4 30s Use the soft menu key LOGO IN SCREENSHOT to determine whether the R amp S logo displays on the top right corner of printouts or not The soft menu UPDATE for the instrument and help up date and LICENCES to upgrade software options will be de scribed in detail in the following chapters The soft menu DATE amp TIME is used to set the date and time The soft menu SOUND is used to set the sound options You can ac tivate a sound as beeping during setup in the event of an error and for the triggers The integrated help can be acti vated by pushing the HELP key in the GENERAL section This opens a window with explanatory text The text in the Differences within the HMO Compact series 72x 202x Unit Channels Bandwidth Vertical Settings at IMOhm Input Impedance Offset Range R amp S HMO722 2 7OMHz 1 mV to 10V Div 1 MOhm R amp S HMO724 4 7OMHz 1 mV to 10V Div 1 MOhm R amp S HMO1022 2 100MHz 1 mV to 10V Div 1 MOhm R amp S HMO1024 4 100MHz 1 mV to 10V Div 1 MOhm R amp S HMO1522 2 150MHz 1 mV to 5 V Div 1 MOhm 50 Ohm 0 2 to 20 V R amp S HMO1524 4 150MHz 1 mV to 5
101. ering by image information Next you can select between frame triggering FRAME and line trig gering LINE Selecting LINE allows you to define the ex act line between 1 and 625 via universal knob or the KEY PAD button in the CURSOR MENU section The soft menu item ALL LINES enables the oscilloscope to trigger on the start of the lines in the video signal This key selects all lines i e even when other trigger conditions are met the oscilloscope will trigger on each line If FRAME is selected for frame triggering the lower menu items will allow to trigger on ODD or only EVEN half frames In this case the oscilloscope will trigger on the start of the half frames in the video signal The respective key will se lect the odd even half frames i e even if the other trigger conditions are met the oscilloscope will trigger on each odd even half frame TB 500us T Os 1MSa PAL NTSC SECAM PAL M SDTV 576i HDTV 720p HDTV 1080p HDTY 1080 ALL LINES Fig 6 7 Video trigger menu 7 Signal Display The following chapter describes the selection and display of signals from various sources as well as all available dis play modes 7 1 Display Settings The R amp S HMO Compact series features a high quality TFT display with VGA 640x480 pixels resolution inclu ding LED backlighting Basic display settings can be defi ned by pressing the DISPLAY 14 key in the GENERAL sec tion When the soft menu item VIRTUAL SCREE
102. et to X Use the soft menu key BYTE to toggle between bytes IDENTIFIER AND DATA Includes the same settings as the soft menu IDENTIFIER In the menu that opens you can select the FRAME TYPE general data or read data via top soft menu key and universal knob In the menu IDENTIFIER SETUP below you can enter the address of the respective pattern DATA SETUP Allows you to specify the data bit pattern or HEX values for up to 8 bytes only available if DATA was selected as frame type Available comparisons for address and data values are GREATER EQUAL OR LESS EQUAL and NOT EQUAL TB 20us T 99 2us 25MSa Refresh 06 YD E 4h Wile 7 0 Eh a ae eT f 12 5MSa Fig 12 20 CAN BUS Press the MENU OFF button several times to close all me nus and the oscilloscope will trigger on the set data For measurements without measuring object please refer to chapter 12 2 2 12 8 LIN BUS For CAN BUS trigger and decoding you need the R amp S HO012 op tion or the upgrade voucher R amp S HV112 The LIN bus Local Interconnect Network is a simple mas ter slave bus system for automotive applications and is used for the data exchange between controller units and sensors or actuators The signal is transmitted on one line with ground reference to the vehicle mass A LIN BUS has the following properties 1 Serial single wire communication protocol byte oriented 1 Master slave communication generally up to 12 knots 1 Master
103. f measurements Maximum Sampling Rate I Average signal update rate Reasonably smooth operation Good accuracy of measurements Low noise band Automatic Tab 5 1 Advantages and disadvantages of each setting 22 DIEF NVE LETS EX Application 1 Search for rare events 1 Displaying modulated signals High aliasing risk Low accuracy of details Low accuracy of measurements due to reduced amount of data Slow response to operation or 1 For signals with high frequency change In signal parts Low signal update rate 1 Assessment of small signal Higher visibility of noise details Possible aliasing 1 Default application time bases If a high repeat rate can only be attained by means of low memory depth as is the case with other ma nufacturers it is nearly impossible to zoom in retrospec tively in STOP mode 5 4 Interlace Mode In interlace mode ADC and storage of two channels are connected This doubles the sampling rate and the acqui sition memory Interlace groups are channels 1 and 2 and channels 3 and 4 If an interlace group is not interlace ca pable the non interlace mode is also applied to the related group A channel is considered active even if it has been deactivated while still serving as the trigger source If a channel is activated the respective LED next to the input connector is illuminated The following conditions must be met to activate the Interlace mode 1 No active logic pod 1 None of the serial
104. g Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig rig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig igi ee ZA aw Zio 2 4 23 2 6 me i 2 0 2 9 2 10 2 11 PAN PA 2 14 ZNO 3l S E 3 4 Chen 36 37 30 3 9 9 10 CAD hs la or oe oa Se 4 1 4 2 As 4 4 4 5 TH Oe FIG 0 3 Fig Fig Fig Fig Fig Fig Fig Fig Fig Fig 4 ene 30 o 6 1 6 2 6 3 6 4 6 5 6 6 Operating positions 4 Product labeling in accordance with EN 50419 6 Frontview of the R amp S HMO2024 8 Control panel of section A 8 Control panel of section B C and D g Screen view J Selection of basic soft menu elements 10 Basic soft menu elements for settings and navigation 10 Menu for basic settings 11 Updating menu and information window 11 Menu and information window for help udates11 UPGRADE menu IZ Manual licence key Input 12 Successful self alignment 12 Logic probe self alignment 13 Rear panel of the R amp S HMO2024 13 Y Out signal 13 Control panel of section A 14 Screen display after connection of the probe 14 screen display after changing to DC coupling 14 Screen display after Autosetup 14 Area of the control panel containing the ZOOM knob 14 Zoom function 19 Cursor measurements 19 Quick View parameter measurement 15 Auto Measure menu 15 Sele
105. he HO 40 Remote control 61 Specifications 14 Specifications HMO Compact Series 2 or 4 channel mixed signal oscilloscopes HMO722 HMO724 70 MHz HM01022 HM01024 100 MHz HM01522 HM01524 150 MHz HM O2022 HMO2024 200 MHz from firmware version 4 527 Display Screen size type Resolution L x W Backlight Display range in horizontal direction without menu bar with menu bar Display range in vertical direction with Virtual Screen usage Color depth Trace display Levels of trace brightness Button brightness Vertical System DSO Mode 2 channel models 4 channel models MSO Mode 2 channel models 4 channel models Analog Channels Y bandwidth 3 dB 1 mV 2mV Div 5mV to 10V Div Lower AC bandwidth Bandwidth limitation switchable Rise time computed HMO72x HMO102x HMO152x HMO202x DC gain accuracy Input sensitivity range all analog channels coarse stepping variable stepping Impedance Coupling Max input voltage 1MQ 50Q HMO152x HMO202x Position range 62 16 5cm 6 5 VGA Color Display 640 x 480 Pixel 400 cd m LED 12 Div 600 Pixel 10 Div 500 Pixel 8 Div 400 Pixel 20 Div 256 colors oseudo color inverse brightness 32 light dark CH1 CH2 CHITCH2 CH3 CH4 CHICH ROD CH Gh2 CH3iPOD CHa 20MHz HMO72x HMO102x 100 MHz HMO152x HMO202x 7OMHz HMQO72x 100 MHz HMO102x 150 MHz HMO152x 200 MHz HMO202x 2 Hiz about 20 MHz lt 5n
106. he BUS menu and pressing the soft menu key CONFIGURATION In the menu choose the top soft menu key CLOCK SCL and use the universal knob in the CURSOR MENU section to select the source channel You can define the data channel by pressing the soft menu key DATA SDA With the soft menu key 7BIT ADRESS you can choose if the adress should be interpretated inclu sive ADR RVW or without Read Write bit ADDR ONLY A small window provides information about the current settings Press the MENU OFF button twice to close all menus If the option R amp S H0011 resp the voucher R amp S HV111 is ins talled it it only possible to select analog channels as source If the option R amp S HO010 resp the voucher R amp S HV110 is installed both analog and digital channels are available as source T Os 500 MSa see MWA AVAL AVAL N ray SDA a F SCL CH1 504 mY SDA CH2 500 mY Fig 12 5 Menu for the definition of 12C sources Certain portions of the I2C messages will be displayed in color to distinguish between the different elements If the data lines are selected with the table display the respec tive sections will also be displayed in color These are de scribed as follows 1 Read address Yellow 1 Write address Magenta 1 Data Cyan 1 Start White 1 Stop White 1 No acknowledge Red 1 Acknowledge Green After the BUS configuration it will be possible to trig ger on various events Press the TYPE button in the TR
107. he displayed values re fer to a 50 terminating resistor You can use an external terminating resistor parallel to the high impedance Input You can deactivate the FFT function by pressing the soft menu key FFT OFF or pressing the FFT key on the control panel again 9 3 Quick View Pressing the QUICKVIEW key 10 in the ANALYZE sec tion activates several basic automatic measurements The QUICK VIEW function allows a quick overview of the typi cal signal size Measurement results are displayed at the bottom of the screen and with a cursor on the signal The following five measurement values are displayed directly in the signal Analysis 1 Maximum voltage Vp 1 Mean voltage Mean 1 Minimum voltage Vp 1 Rise time tr 1 Fall time tr The following ten measurement values are displayed at the bottom of the screen 1 RMS value Period 1 Peak to peak voltage Frequency 1 Amplitude Number of positive slopes 1 Pos pulse width 1 Pos duty ratio Neg pulse width Neg duty ratio Pressing the AUTO MEASURE key allows you to change the six measurement parameters on the bottom right You may undo these changes by choosing RESET or restore the default setting Only one channel can be active in the Quickview mode All measurements will be performed on the active channel Pressing the QUICK VIEW key again switched off the function 9 4 PASS FAIL Test Based on Masks The Pass Fail test allows you to evaluate if a signal is
108. his oscilloscope is designed for measurements on cir cuits that are only indirectly connected to the mains or not connected at all Make sure the entry voltage of the analog channels CH1 CH2 does not exceed 200 V peak Installation and safety instructions value 150Vrms at 1 MQ and and 5Vrms at 50Q input im pedance The entry voltage of the external trigger in put TRIG EXT does not exceeded 100V peak value The maximum value allowed for transient overvoltages is 200V peak value To ensure compliance it is necessary to only use probes that have been manufactured and tes ted in accordance with DIN EN 61010 031in order to pre vent transient overvoltages at the measurement Input When performing measurements in category Il Ill or IV circuits It is mandatory to insert a probe that reduces the voltage so that no transient overvoltages will be applied to the Instrument Direct measurements without galva nic isolation to category Il Ill or IV circuits are prohibi ted The measuring circuits are considered not connec ted to the mains if an isolation transformer in compliance with class Il is used It is also possible to perform mea surements on the mains if appropriate transformers e g Current connectors are used that are in compliance with safety class Il The measurement category for which the manufacturer specified the required transformer must be observed The measurement categories refer to transients that are Super
109. ide of the screen you will see the short menu for channel 1 Press the soft menu key to the right of each menu Item to select frequently used settings Press the top soft menu key to change the input coupling to TB 100yus T Os CH1 iSm AAC Refresh CHI SOmM S 14 DC Briefly press the AUTOSET key once 15 7B 100yus 7T 0Os CH1 479my J AC 5MSa CH1 SOm 2 After a few seconds the oscilloscope will have automati cally selected the sensitivity time base and trigger settings A square wave signal will now be shown TB 500us T 0s CH1 524 mv AC Refresh CH1 200 m S With the time base knob you can change the displayed time window Turning it CCW increases the time base Con tinue to turn the knob CCW until you can read TB 5ms in the upper left corner of the screen Press the ZOOM key 40 You will see the two window display The upper section of the window dis plays the entire captured si gnal whereas the lower sec tion shows an enlarged sec tion Use the time base knob to select the zoom factor The small knob allows you to de termine the horizontal position of the section Press the ZOOM key 40 again to deactivate the zoom mode CHL 524 MY 4 AC 100kSa Refresh Z 100us 72 05 EH 200 mv After displaying and reviewing the signal the next step will introduce cursor measurements of the signal Again briefly press the AUTOSET key once followed by the CUR SOR
110. idth pos neg duty cycle pos neg standard deviation delay crest factor edge pulse count pos neg trigger period trigger frequency Edge pulse peak rise fall time runt voltage V1 V2 AV time t1 t2 At 1 At ratio X ratio Y pulse and edge count pos neg peak values Vpp Vp Vp mean RMS standard deviation duty cycle pos neg rise fall time 80 90 ratio marker voltage Vpp Vo Vp Vrms Vmean rise fall time frequency period plus 6 additional measurement functions see automatic measurement functions freely selectable up to 8 freely positionable markers for easy navigation automatic marker positioning based on search specification Frequency counter hardware based Resolution Frequency range Accuracy Aging Mask Testing Functions 6 digit 0 5 Hz to 70 100 150 200 MHz 50 0 x 10 10 0 x 10 6 per year Pass Fail comparison with an user definied mask performed on waveforms 63 Specifications Sources Mask definition Actions on mask violations during acquisiton Waveform maths Quickmath Functions Sources Mathematics Functions Editing Sources Storage location Number of formula sets Number of equations Simultaneous display of math functions Frequency Analysis FFT Parameters FFT length Window Scale Waveform arithmetics Cursor measurement Sources Pattern Generator Functions Square wave Probe ADJ output
111. ified if the lettering or marking is missing Please note that with semiconductors changing the polarity will cause the display to rotate 180 degrees around the screen center More important in practice Is the quick determina tion of plain shorts and opens which are the most common causes of requiring service Single Transistors Single components Short circuit Resistor 510Q Junction B C Junction B E Main transformer primar Capacitor 33uF Junction E C Single Diodes In circuit Semiconductors Z Diode below 7V Z Diode beyond 7V Diode paralleled by 680922 2 Diodes antiparallel Silicon diode Germaniumdiode Diode in series with 51Q B E parallel by 6802 Rectifier Thyristor G A together B E with 1uF 680Q Si Diode with 10uF Fig 9 11 Excamples of Component test Analysis Please note that with semiconductors changing the pola rity e g by exchanging the COMP TESTER and ground ter minals will cause the display to rotate 180 degrees around the screen center More important In practice is the quick determination of plain shorts and opens which are the most Common causes of requiring service It is highly recommended to observe the necessary precautions when handling MOS components which can be destroyed by sta tic charges and even tribo electricity 9 5 2 In circuit tests They are possible in many cases but deliver rarely clear re sults By paralleling of real or complex impedances es pecially if those are fairly lo
112. ig 10 4 Menu for storing curves The soft menu CURVE allows you to use the univer sal knob in the CURSOR MENU section to select a chan nel which will be saved as a curve You may only select channels that have been activated via channel keys The soft menu key FILE NAME opens the menu for the name entry where you can use the universal knob or the KEY PAD key in the CURSOR MENU section to enter a name and confirm your entry by pressing ACCEPT TRC is the default name The curve main menu will display automa tically You can open a selection window by pressing the soft menu key FORMAT to determine the file format The universal knob in the CURSOR MENU section allows you to select the desired format You can choose from the fol lowing formats 1 BIN A binary file may contain any type of Byte value The captured curve data will be stored without any time information 1 CSV Comma Separated Values In CSV files curve data is stored in table format Each table row Is separated by a comma Example s CH1 V 4 99500E 07 2 601E 03 4 99000E 07 6 012E 04 4 98500E 07 6 012E 04 4 98000E 07 1 399E 03 If you choose the Max Sampling Rate in the ACQUIRE menu two rows will be affixed with a time stamp during the CSV export because a minimum and a maximum value must be assigned to this time value To acquire an amplitude value per time stamp ac tivate Automatic in the ACQUIRE menu 1 TXT TXT files are ASCII files th
113. imposed on the mains voltage Transients are short very fast steep current and voltage variations which may occur periodically and non periodically The level of poten tial transients increases as the distance to the source of the low voltage Installation decreases Measurement CAT IV Measurements at the source of the low voltage Installations e g meters Measurement CAT Ill Measurements in building installations e g power distribution installations power switches firmly installed sockets firmly installed engines etc Measurement CAT II Measurements on circuits electronically directly connected to the mains e g household appliances power tools etc 1 O instruments without measured measurement category Other circuits that are not connected directly to the mains 1 10 Mains voltage The instrument has a wide range power supply from 100 to 240 V 410 50 or 60 Hz There is hence no line vol tage selector The line fuse is accessible on the rear panel and part of the line input connector Prior to exchanging a fuse the line cord must be pulled out Exchange Is only al lowed if the fuse holder is undamaged It can be taken out using a screwdriver put into the slot The fuse can be pu shed out of its holder and must be exchanged with the identical type type informations below The holder with the new fuse can then be pushed back in place against the Spring It is prohibited to repair blown fuses or to
114. ing the reference press LOAD in the file manager menu again To save a reference press the SAVE key determine the source storage location file name and curve and press the soft menu key SAVE with the disk icon The FILE NAME can be changed or adjusted to the corresponding setting REF ist the default label You can use the soft menu key COMMENT to enter a comment which will be displayed in the file manager footer once a file has been selected 10 3 Traces In addition to references you can also store A D converter data Traces can only be stored to externally connected USB sticks not internally Depending on the selected time base and sample rate in the ACQUIRE menu AUTOMATIC MAX SAMPLE RATE or MAX WAVEFORM RATE the maximum read out measurement points varies The full memory can only be read out via interface in STOP mode with the maximum sampling rate setting ACQUIRE menu In the soft menu STORAGE the USB connection on the front of the instrument is selected as storage location Se lecting the respective storage location is possible when a USB stick has been recognized If a USB stick is connec ted you can also change create or delete directories Use the soft menu key SORT ENTRIES to sort several settings files by name type size or date Press ACCEPT DIR to confirm the target directory and you will automatically re turn to the curve main menu Documentation Storage and Recall TB 10us TE IS STORAGE F
115. isplay a list Use the universal knob in the CURSOR MENU section to choose the appropriate measurement place The para meters will be displayed at the bottom of the screen This menu allows you to define the parameters MEAS PLACE Peak Peak Peak Peak Frequency Period MEASURE 1 Amplitude Top Level Base Level Pulse Width Pulse Width Duty Cycle Duty Cycle Fall Time 90 Rise Time 80 Fall Time 80 PAGE 1 2 gt CH2 S5mV Press the CH2 key in the VERTICAL section This will ac tivate CH2 Press the AUTOMEASURE key to return to the definition menu Select Measurement Place 1 select MEAN as measurement type and CH1 as source Press the MEAS PLACE soft menu key on top to select the second measurement place Define the measurement place as be fore as RMS value with the voltage of CH2 Once the menu is closed parameters can be easily identified by the colors of the respective source signal in this instance yellow for channel 1 and blue for channel 2 In addition to cursor and automatic measurements the R amp S HMO Compact series can also apply mathematical operations to the signals Pressing the MATH be key opens a menu enabling you to apply addition subtraction multi plication or division to two analog channels This also dis plays the mathematical graph The top soft menu key al Formulary Editor Formulary 1 EQUATION MAI ADD CH1 CH2 D j EDIT new Depa OPERATOR
116. it must be disconnected from the AC supply network Otherwise personnel will be exposed to the risk of an electric shock Any adjustments replacements of parts maintenance and repair may be carried out only by authorized ROHDE amp SCHWARZ technical personnel Only original parts may be used for replacing parts relevant to safety e g power switches power transformers fuses A safety test must always be performed after parts relevant to safety have been replaced visual inspection PE conductor test insu lation resistance measurement leakage current measure ment functional test This helps ensure the continued safety of the product 1 8 Maintenance Clean the outer case of the measuring instrument at regular in tervals using a soft lint free dust cloth The display may only be cleaned with water or an ap propriate glass cleaner not with alcohol or other clean ing agents Follow this step by rubbing the display down with a dry clean and lint free cloth Do not allow clean ing fluid to enter the instrument The use of other cleaning agents may damage the labeling or plastic and lacquered surfaces Before cleaning the measuring instrument please make sure that it has been switched off and disconnected from all power sup plies e g AC supply network or battery No parts of the instruments may be cleaned with chemical clean ing agents such as alcohol acetone or cellulose thinner 1 9 Measurement categories T
117. justed Please refer to to the probe ma nual for the adjustment procedure The PROBE ADJUST output of the oscilloscope is only suitable for 1 1 and 1 10 probes 100 1 or 1000 1 probes require special generators Use the shortest possible ground connection to the PROBE ADJUST output as shown in Fig 4 3 Fig 4 3 Probe connection to the S1 S2 3 BUS SIGNAL SOURCE 10Vpk Q probe adjust output You can set the coupling using the short menu or channel menu Simply press the respective soft menu key to set the coupling and the graphic inversion of the input chan nel The menu applies to the corresponding active channel The illuminated channel key indicates which channel is ac tive You can switch between channels by pressing the re spective channel key 4 2 Sensitivity Y Positioning and Offset You can select the sensitivity of the analog inputs by using the knob in the VERTICAL section VOLTS DIV in 1 2 5 steps of ImV div to 10V div The knob is associated with the active channel push the respective channel key to ac tivate the desired channel Pushing the knob once will switch to a continuous sensitivity setting You can use the smaller knob in the VERTICAL section POSITION to de termine vertical settings for the active channel Press the MENU key to access advanced options On page 2 2 of this menu you can add a DESKEW To activate this off set push the corresponding soft menu key You can set the offset value
118. l channels are available as source The soft menu key ACTIVE can be used to determine If the data transferred to the BUS are active high High 1 or active low Low 1 for RS 232 choose Low Use the soft menu key SYMBOL SIZE and the universal knob to se lect a value between 5 bit to 9 bit for the bits that form a symbol Another setting can be selected via soft menu key PARITY Parity bits are used to detect errors during a transmission The soft menu PARITY offers the following options 1 None Use no parity bits 1 Even The parity bit is set to 1 if the number of ones in a specific set of bits is uneven without parity bit 1 Odd The parity bit is set to 1 if the number of ones in a specific set of bits is even without parity bit The bottom soft menu key STOP BITS allows you to de fine the length of the stop bit 1 single 1 5 1 1 2 or 2 double On page 2 2 of the UART BUS setup menu you can se lect the BIT RATE symbol rate via universal knob in the CURSOR MENU section The bit rate defines how many bits are sent per second The soft menu key BIT RATE al lows you to select standard numeric values Press the soft menu key USER if you wish to define customized ra tes via universal knob or numeric input KEYPAD button The IDLE TIME describes the minimum time between the stop bit of the last data and the start bit of the new data The sole purpose of the idle time is to define the start of a tra
119. l service partner to dispose of the product Installation and safety instructions Introduction 2 Introduction 2 1 Front view On the instrument frontside you can find the power key 1 in order to switch on the instrument or enter stand by mode If the instrument is in stand by mode this key light up red If the instrument is switched off using the main po wer switch on the backside the red light will also switch off this will take some seconds Furthermore you find on the front panel the control panel 2 B B O A the BNC connectors of the analog inputs 45 to 48 the probe adjust ment output 51 the bus signal source 50 the connectors for the optional logic probe R amp S HO3508 53 a USB port for USB sticks 54 the TFT screen 55 the inputs for the com ponent tester 52 and the LED 49 for showing activity on the remote interface On two channel versions you can find the AUX connector for external trigger at the right side Use the connectors for the active logic probes 53 exclusively for the logic probes of type R amp S HO3508 Connecting other types may demolish the input 2 2 Control panel The controls in the front panel allow access to all ba sic functions while advanced settings are easily acces sible through the menu structure and gray soft menu keys The power button 1 is clearly set apart by its design The most significant controls feature colored LEDs indicating the curren
120. ld of the Z source and the XY points with the lowest brightness Values ex ceeding the threshold will be displayed with the selected brightness There is no transition between the two states You can use the universal knob or the KEYPAD button in the CURSOR MENU section to select the threshold Refresh TB 500 ns SOURCE Z On Of SOURCE Z CH4 Z INTENSITY Modulation On Off THRESHOLD 861m Fig 7 5 Settings for the Z input Measurements Measurements There are two different types of measurements on signals Cursor measurements and automatic measurements All measurements are stored in a buffer memory that is larger than the display memory The integrated hardware coun ter shows the frequency and period duration for the selec ted Input 8 1 Cursor Measurements The measurement option that is most frequently used with an oscilloscope is the cursor measurement Depending on the measurement type up to three markers are available To control cursor measurements you may use the keys CUR SOR MEASURE and KEYPAD as well as the universal knob The menu CURSOR MEASURE allows you to select cursor based measurements for an activated signal source on the oscilloscope The measurement type can be defined in the menu that opens when you press the CURSOR MEASURE key Following measurement types can be selected VOLTAGE This mode provides two cursors to measure three different voltages The values V1
121. lement If IP addresses In a network are assigned to the attached net work elements automatically dynamically a DHCP ser ver English DHCP becomes Dynamic Host Configura tion Protocol is required for the dispatching of IP addres ses With a DHCP server an IP address range for the auto matic dispatching of IP addres ses can be preset A DHCP server is usually already integrated in a router DSL router ISDN router Modem router WLAN router integrated If a network element e g an instrument is connected by a network cable directly with a host PC the IP addresses cannot be assigned to the Instrument and the host PC au tomatically since no network with DHCP server is present here They have to be preset therefore at the instrument and at the host PC manually 59 Remote control IP addresses are divided by using subnet mask into a net work quota and into a host quota so similarly e g a te lephone number is divided in pre selection land and lo cal area network number and call number user num ber Subnet mask have the same form as IP addresses They are represented with four decimal numbers separa ted by points e g 255 255 255 0 As is the case for the IP addresses here each decimal number represents a binary number of 8 bits The separation between network quota and host quota is determined by the subnet mask within an IP address e g the IP address 192 168 10 10 by the sub net mask 255 255 255 0 is divid
122. located within defined limits This limits are set by a so called mask If the signal exceeds the mask there is an error These er rors will be displayed together with successful sweeps and the total of all sweeps at the bottom of the screen It is also possible to perform certain actions if errors are discovered TB 200uUs T Os 250kSa LOAL MASK ACTIONS or OFF 7 A Total 3715 48s Fig 9 9 PASS FAIL mask test Press the QUICKVIEW key 10 in the ANALYZE section of the control panel and press the soft menu key PASS FAIL to activate the mode which opens a menu to set and use the mask test Prior to starting the test by pressing the top soft menu key TEST ON OFF it is necessary to generate or load a mask and to select an action To generate a new mask press the soft menu key NEW MASK Masks are dis played as light gray curves waveforms on the screen If a mask was copied or loaded you can use menu Items to change the expansion of the signal form and consequently the limits for the test In the menu that opens you can use 39 Analysis the key COPY CHANNEL to copy the current signal into a mask memory The mask displays in white and appears as an overlay of the output signal The menu keys Y POSITION and STRETCH Y enable you to shift this curve vertically or to enlarge it The two menu items WIDTH Y and WIDTH X allow you to set the tolerance for the mask The univer sal knob or the KEYPAD button in the CURSOR MEN
123. mum of two buses B1 and B2 may be defined Press the BUS button in the VERTICAL section This will open a short menu where you can press the bottom soft menu key B1 or B2 Additionally you can use the MENU button in the VERTICAL section and the top soft menu key to define the respective BUS B1 or B2 48 Depending on the installes option use the soft menu key BUS TYPE to choose from the following BUS types PARALLEL Standard PARALLEL CLOCKED Standard 1 SSPI only available with R amp S HOO10 HV110 HOO11 HV111 1 SPI only available with R amp S HOO10 HV110 HOO11 HV 111 12C only available with R amp S HOO10 HV110 HOO11 HV111 UART only available with R amp S HOO10 HV110 HOO11 HV 111 1 CAN only available with R amp S HOO12 HV112 1 LIN only available with R amp S HOO12 HV 112 T Os iu 500MSa P arale Parallel Clocked SSPI 2 Wire SPI 3 Wire ve CONFIGURATION UART CAN LIN DISPLAY SETUP Fig 12 1 Menu for the definition of buses The soft menu key CONFIGURATION allows you to invoke a menu corresponding to the selected bus type A menu description can be found in the chapters of the respective BUS configuration The soft menu DISPLAY SETUP is iden tical for all buses and allows you to select the decoding format You may choose from the following formats 1 Binary Hexadecimal Decimal 1 ASCII Use the soft menu key BITS to activate or deactivate the display of individual
124. n MAS can be named ENERGY using the soft menu key LABEL Now all definitions will be completed and the results can be displayed and analysed The math analysis can be per formed with cursor or automatic measurement functions All measurement results will be correctly shown and sca led with correct units Ampere Watt Joule 9 2 Frequency Analysis FFT In general the FFT in an oscilloscope works differently than in a spectrum analyzer and is affected not only by the time base setting but also by the available number of used acquired data points when calculating the FFT The R amp S HMO1002 allows you to include up to 65k point in the FFT The FFT is not suitable for the analysis of very slow signals Hz range this type of analysis requires a classic oscilloscope mode TB 100us T 0Os Refresh Center 6 48 MHZ Span 10 MHz Fig 9 7 FFT illustration The FFT menu in the ANALYZE section allows a quick Fou rier transformation which displays the frequency spect rum of the measured signal The changed display allows you to determine the most frequent frequencies in the si gnal and the corresponding amplitude Once the FFT key was pressed the screen will be divided into two graticu les The upper left of the display shows information about the settings In the time range the area between the upper and the lower window shows details about zoom and po sition and the section below the large FFI display window indica
125. n dump for first time failure on printer An action is performed if the respective condition is met e g a Specific number of mask failures Each action is as signed a unique condition which can be defined separately from the other actions The respective condition can be de fined in the menu for the corresponding action Select the respective action by pressing the appropriate soft menu key the corresponding soft menu item will be highlighted in blue Press the MENU OFF key to return to the main menu and to start the mask test 9 5 Component test 9 5 1 General The R amp S HMO Compact series has a built in component tester This can be activated by pushing the XY CT button VERTICAL section with the soft menu key CT The unit un der test is connected to the two contacts below the screen After switch on the component tester mode the Y preamp lifiers and the time base are disconnected While using the component tester signals may be present at the inputs as long as the unit under test is not connected to any other cir cult It is possible to test components remaining in their cir cuits but in such cases all signals must be disconnected 40 from the front panel BNC connectors see the following pa ragraph Test in circuits The test principle is a generator within the R amp S HMO Compact series generates a 50 Hz or 200 Hz 10 sine wave which feeds the series connec tion of the test object and a sense resistor If
126. n via PO soft menu key To switch on the digital channels with 2 chan nel instrument types press the POD key in the VERTICAL section The digital channels O to 7 will now display on the screen For the logic channels a logic 1 will be indicated by a bar that is two pixels wide and a logic 0 will be indicated by a bar that is one pixel wide The set logic level and a figure which shows the logical states will be shown next to the name POD in the information field in the bottom left of the display You must always set the level to distinguish between the logic states High Low in the VERTICAL MENU 46 You may now choose the Y position and the size of the lo gic channel display just as you would for the analog chan nels Use the knobs Y POSITION 18 and VOLTS DIV 20 to select the settings if the soft menu key 0 7 is selected indicated by a blue background If you wish to display fe wer than 8 logic channels or change the position and size of a particular logic channel you can use the short menu in combination with the soft menu keys channel 0 to 7 and the buttons Y POSITION 18 and VOLTS DIV 20 to se lect the respective settings You can choose a channel by pressing the A and W soft menu keys This allows you to re size and position specific channels individually You can reset the position and size of the individual lo gic channels on page 2 2 of the POD menu You also have the option to label the
127. nal for instance HAMMING The Hamming window func tion is bell shaped In contrast to the Hanning and Blackman window function it is not equal to zero at the margin of the measurement interval There fore the height of the noise level in the spectrum Is grea ter than with the Hanning and Blackman window function but less than with the square wave window function How ever the spectral lines not as wide as In other bell shaped functions This function is useful for a precise amplitude measurement of a period signal for instance BLACKMAN The Blackman window function is bell shaped and its waveform features the steepest fall off among the available functions Is is zero at both ends of the measurement interval The Blackman window function allows you to measure the am plitudes with high accuracy However it is more difficult to determine the frequency due to the wide spectral lines This function is useful for a precise amplitude measure ment of a period signal for instance RECTANGLE The rectangle function multiplies all points by 1 This results in a high frequency accuracy with narrow spectral lines and incre ased noise This function can be used for pulse response tests with start and end values of zero The menu item Y SCALING allows you to scale the FFT in the amplitude logarithmically dBm dBV or linear Vett The unit dBm Decibel Milliwatt refers to 1mW The unit dBV Decibel Volt refers to 1Verr T
128. nductor 5V supply voltage for external devices max 400mA Fig 13 1 Pin assignment of the RS 232 interface The RS 232 interface is built with a 9 pin D SUB connec tor This bidirectional interface allows the transfer of setup parameters data and screenshots from an external device e g PC to the oscilloscope or vice versa It is possible to establish a direct connection from the PC serial port to the interface via 9 pin shielded cable 1 1 wired The max imum length must not exceed 3 m The pin assignment for the RS 232 interface 9 pin D SUB connector please refer toig 13 1 The maximum voltage variation at the Ix Rx RIS and CTS connections is 12 Volt The RS 232 standard parameters for the interface are as follows 1 8 N 1 8 data bits no parity bit 1 stop bit 1 RIS CTS hardware protocol none The RS 232 interface parameters can be set in the SETUP menu via soft menu key INTERFACE Please make sure that the RS 232 soft menu key is blue highlighted A soft menu will be opened where you can set and save all RS 232 interface parameters 13 2 USB The currently available USB driver have been fully tested and re leased for Windows XP VISTA Windows 7 and Windows 8 32 64 Bit The USB interface must be selected in the menu of the os cilloscope and requires no further action The actual USB driver can be downloaded from the ROHDE amp SCHWARZ homepage for free If a connection between PC and th
129. ne ee uae Be 66 Installation and safety instructions 1 Installation and Safety Instructions 1 1 Symbols 1 2 3 4 6 7 8 Symbol 1 Caution Observe operating instructions Symbol 2 Caution High Voltage Symbol 3 Ground Symbol 4 PE terminal Symbol 5 ON OFF supply voltage Symbol 6 Stand by display Symbol 7 Ground terminal 1 2 Unpacking While unpacking check the package contents for com pleteness measuring Instrument power cable product CD possibly optional accessories After unpacking check the instrument for mechanical damage occurred during transport and for loose parts inside In case of transport damage please inform the supplier immediately The in strument must not be operated in this case 1 3 Setting up the instrument As you can see from the picture there are small feets on the bottom which can be folded out Please make sure you have fully folded out the feet s in order to ensure stability of the instrument Fig 1 1 Operating positions The Instrument must be installed in a way that at any time the disconnection of the power line is not restricted 4 1 4 Safety The instrument fulfils the DIN EN 61010 1 VDE 0411 part 1 regulations for electrical measuring control and labo ratory instruments and was manufactured and tested ac cordingly It left the factory in perfect safe condition Hence it also corresponds to European Standard EN 61010 1 and Standard IEC 61010 1 In
130. nsmission and consequently the exact start of a frame one or more symbols most commonly bytes Only this information can guarantee correct decoding and triggering regardless of the trigger type A start bit within the idle time will not be recognized You can enter the value via universal knob in the CURSOR MENU section or numeric Input KEYPAD button 54 Web AVS T Os ET RATE SD 115200 s Start Bit IDLE TIME Source DO High Active Symbol rate 115200Sy s Idle Time 992ns ere INPUT Idle Time A PAGE 2 2 POD1 500m 1GSa After the BUS configuration it will be possible to trigger on various events Press the TYPE button in the TRIGGER sec tion of the control panel and choose the soft menu key SE RIAL BUSES Then press the SOURCE button in the TRIG GER section and choose UART This will only be availa ble if it was configured earlier Press the FILTER button in the TRIGGER section of the control panel to list all available UART trigger conditions START BIT Sets the start bit as trigger event The start bit is the first O bit that succeeds a stop bit or idle time FRAME START Defines the first start bit after idle time 1 SYMBOL lt N gt Assigns a predefined N th symbol as trigger event ANY SYMBOL The soft menu ANY SYMBOL allows you to define any symbol to trigger on The symbol can be located anywhere within a frame The serial bit sequence PATTERN INPUT can be entered a
131. o 1000A the 19 rack mount set HZO91 and the type HZO90 transport bag for the pro tection of the instruments The instrument must have reached the required operating tempe rature switched on for at least 20 minutes and all inputs must be unused in other words all cables and probes must be removed from the inputs The R amp S HMO Compact series features an integrated self alignment procedure to achieve the highest possible accu racy During the standard self alignment the instrument ad justs vertical accuracy offset time base and several trig ger settings and saves the identified correction data inter nally To start the self alignment in the SETUP menu press the soft menu key SELF ALIGNMENT and press the START key The procedure will run for about 5 10 minutes Each step and its corresponding progress will be shown in a bar display Inputs Acquisition Y Amplifier Trigger DB Check If an error occurs during the self alignment although it has been carried out as described please send the exported log file see Self Alignment menu to customersupport rohde schwarz com or support hameg com You can save the log file to a USB stick 2 8 1 Logic Probe Self Alignment The self alignment for the optional logic probe R amp S HO3508 primarily aligns the switching levels To start the self alignment for the logic probe it is necessary that the logic probe type R amp S HO3508 is connected to the R amp S HMO Compact se
132. oa ding enabling a comparison between the original signal and its corresponding values The soft menu REFERENCES only allows you to import or export references IMPORT EXPORT The transfer of re ferences to other R amp S HMO instruments is possible The standard menu for the file manager opens which allows you to copy references between the internal memory and the external USB stick The top soft menu SOURCE allows you to use the universal knob in the CURSOR MENU sec tion to select the source for the reference to be saved You can select from the activated channels and mathemati cal curves Open the menu to store and load by pressing the REF key in the VERTICAL section of the control pa nel With the soft menu key RE1 to RE4 up to 4 references can be activated The top soft menu SOURCE allows you to use the universal knob to select the source for the refe rence to be saved You can select from the activated chan nels and mathematical curves Press the soft menu key DISPLAY to display the selected reference curve or to up date the current reference curve TB 200uUs T Os 2 5MSa DISPLAY Fig 10 3 Storage menu for references To load a reference from a USB stick or the internal me mory open the soft menu LOAD This shows a window displaying the internally stored references You can se lect the desired target reference curve in the top menu item and by pressing LOAD in the file manager To com plete loading and display
133. ope and press the SETUP key in the GENERAL section of the control panel The menu item UPDATE can be found on page 2 2 Selecting this menu item opens a window displaying version number date and build information of the currently installed firmware Instru ment firmware or help can be updated at this point Pres sing the soft menu key UPDATE the instrument firmware will result in a search for the corresponding file on the USB stick The information for the new firmware to be installed will then be displayed on the stick below the row labeled NEW The version number will be displayed in red In case Introduction the existing firmware on the instrument Is identical to the latest version otherwise the version number will be shown in green Only if this is the case press the soft menu EXE CUTE to start the update Choose the HELP menu item in the Update menu if you intend to update the help or add a new language for help Only 4 languages can be installed If four language places are as signed and you wish to install another one you first need to de lete one language The information window will now display all installed lan guages the date and relevant information about the lan guages available on the stick The soft menu allows you to add remove or update languages Please note the date format YYYY MM DD in compliance with multilingual helo ISO 8601 standards Device Version Date Build LANGUAGE Current Now New H
134. order to maintain this condition and to ensure safe operation the user is re quired to observe the warnings and other directions for use in this manual Housing chassis as well as all measur ing terminals are connected to safety ground of the mains The instrument is designed in compliance with the regu lations of protection class The exposed metal parts are checked against the mains poles with 2200 VDC voltage The instrument is in accordance with overvoltage category lI A For safety reasons the instrument may only be operated with authorized safety sockets The power cord must be plugged in before signal circuits may be connected Sep arating the grounds is prohibited Never use the product if the power cable is damaged Check regularly if the power cables are in perfect condition Choose suitable protective measures and installation types to ensure that the power cord cannot be damaged and that no harm is caused by tripping hazards or from electric shock for instance If it is assumed that a safe operation is no longer possible the in strument must be shut down and secured against any un intended operation It is prohibited to disconnect the earthed protective connection inside or outside the instrument Safe operation can no longer be assumed 1 in case of visible damage 1 in case loose parts were noticed 1 if it does not function any more 1 after prolonged storage under unfavourable conditions e g like in the o
135. oved past the peak values of the signal DC The trigger signal is coupled to the trigger circuit with all signal portions AC and DC voltage This has no impact on the triggering signal 26 HF The trigger signal is coupled via high pass filter with a minimum cut off frequency 3 dB of 830 kHz and is automatically limited when triggering the level with normal trigger This coupling type should only be applied to very high frequency signals 1 LP low pass The trigger signal is coupled via low pass with a maximum cut off frequency of b kHz This filter removes high frequencies and is available with AC and DC coupling 1 NR noise reduction A low pass filter with a maximum cut off frequency of 100 MHz will improve the noise performance for the trigger amplifier This filter removes high frequencies and is available with AC and DC coupling The coupling types low pass and noise reduction may not be acti vated simultaneously TB 500us T Os 1MSa Fig 6 3 The type B Trigger The slope trigger can be coupled with a so called B Trig ger This option is available via soft menu key SLOPE A B This function allows you to adjust the trigger such that first condition A must be met and then another condition B before the trigger will respond refer to Fig 6 3 E g it is possible to define a source channel and a level of 120 mV on the rising slope of that signal and for the second condi tion a level of
136. p SCHWARZ measuring instruments comply with regulations of the EMC Directive ROHDE amp SCHWARZ is basing the conformity assessment on prevailing generic and product standards In cases with potentially different thresholds ROHDE amp SCHWARZ instruments apply more rigorous test conditions Thresholds for business and commercial sectors as well as small business are applicable for interference emission class 1B As to the interference immunity the standard thresholds for the industrial sector apply Measurement and data lines connected to the measuring instrument significantly affect compliance with specified thresholds Depending on the respective application utilized lines may differ In regards to interference emission and immunity during measurements it is critical that the following terms and conditions are observed 1 Data Cables It is imperative to only use properly shielded cables when connecting measuring instruments and interfaces to external devices printers compu ters etc Unless the manual prescribes an even shorter maximum cable length data cables input output signal control may not exceed a length of 3m and may not be used outside of buildings If the instrument interface includes multiple ports for interface cables only one cable at a time may be connected Generally interconnections require double shielded connecting cables The double shielded cable HZ72 available at ROHDE amp SCHWARZ is well suitable as I
137. pen or In moist atmosphere after rough handling during transport e g packaging that does not meet the minimum requirements by post office railway or forwarding agency 1 5 Intended Operation The measuring instrument is intended only for use by personnel familiar with the potential risks of measuring electrical quantities For safety reasons the instrument may only be connected to properly installed safety socket outlets Separating the grounds is prohibited The power plug must be Inserted before signal circuits may be connected The product may be operated only under the operating conditions and in the positions specified by the Use the measuring instrument only with original ROHDE amp SCHWARZ measuring equipment measuring cables and power cord Never use inadequately measured power cords Before each measurement measuring cables must be inspected for damage and replaced if necessary Damaged or worn components can damage the instrument or cause injury manufacturer without the products ventilation being obstructed If the manufacturers specifications are not observed this can result in electric shock fire and or serious personal Injury and in some cases death Applicable local or national safety regulations and rules for the prevention of accidents must be observed in all work performed The measuring instrument is designed for use in the following sectors Industry residential business and commercial areas and small b
138. r Function 24 mask test 39 40 mathematical functions 16 35 36 mathematical graph 16 maximum repeat rate 22 Maximum voltage 39 mean value 32 33 34 35 38 mean voltage 15 33 measurement source 34 Measuring category 6 memory depth 21 22 23 Minimum voltage 39 mixed signal operation 12 P Pass Fail test 39 peak detection 20 21 22 peak voltage 15 18 39 period 15 21 2429 3 02 00 3439 59 persistence 30 polarity 28 41 55 probe compensation 14 pulse trigger 26 27 28 pulse width 15 24 26 27 28 33 39 Q Quick mathematics 35 36 Quick View 15 39 R rectangle function 39 reference curves 44 reference signal 9 16 reference time 27 28 remote interface 8 rise and fall times 15 rise time 24 32 33 RMS bd 16 32 3339 RS 232 interface 59 runt 24 S sampling frequency 20 sampling rate 9 20 21 22 23 43 48 Save Recall 17 SCPE DS screen displays 16 41 42 screenshot 13 17 44 45 scripting language SCPI 58 Self Alignment 12 13 semiconductors 40 41 Appendix sensitivity 2 serial bus analysis 49 signal amplitude 32 34 signal source 8 18 49 signal voltage 28 Slope trigger 24 26 OF LDUS 52 Square wave signal 14 33 49 standard deviation 32 34 35 Storage 5 sweep 49 termination 18 threshold 19 28 31 32 48 50 52 53 55 57 time base setting 20 23 42 trigger conditions 9 20 25 26 28 51 5
139. rate corresponds to the current sampling rate All settings apply the identical current sampling rate Sam pling rate used to write to the acquisition memory In STOP mode it is also possible to change menu items This does not impact the current memory depth but the amount of displayed data will be adjusted Peak detec tion is also activated in STOP mode time base in micro seconds In time bases displaying each sampling point all three settings behave identically except used memory depth and signal update rate Table 5 1 displays advanta ges and disadvantages of each setting Finally it needs to be mentioned that this menu replaces the adjustable me mory depth a standard for other manufacturers An adjus table memory depth Is intended to allow users to under stand the relation between memory depth time base and sampling rate and to evaluate advantages and disadvanta ges With this option the oscilloscope always captures si gnals with the maximum sampling rate This allows users in STOP mode to zoom in retrospectively even at the ma ximum repeat rate It is also possible to zoom out at the maximum repeat rate if the STOP mode was run at fast Advantages Setting Max Waveform Rate Many captures in one image Rare events can be detected more quickly in connection with per sistence Quick response to Operation or change in signal Low noise band Maximum accuracy of details Lowest aliasing risk High accuracy o
140. red operation the corresponding menu will be dis played with a blue background Press the MENU OFF key to quit the selection menu If you press the FILE PRINT key the selected function will be performed DEVICESETTINGS tt er vice J NIN mF SCREENSHOTS FILE Eira l EPEN amp sta eTA pit lc Fig 10 7 Definition of FILE PRINT key Documentation Storage and Recall 45 Mixed Signal Operation 11 Mixed Signal Operation As a standard the R amp S HMO Compact series is equip ped with the connectors for the R amp S HO3508 logic probe to add 8 digital logic inputs All software required for the mixed signal operation is already included in the firmware of each instrument It is only necessary to purchase and connect the active R amp S HO3508 logic probe 8 channels With 4 channel instrument types the activation of the POD will deactivate the analog channel 3 The configuration of 3 analog channels plus 8 digital logic channels are possible Fig 11 1 Optional logic probe R amp S HO3508 11 1 Logic Trigger for Digital Input Please find an additional description of the logic trigger for the inputs of the logic probe in chapter 6 5 11 2 Display Functions for the Logic Channels With the 4 channel instrument types the short menu is used to switch an analog channel to a digital channel If channel CH3 is activated and the short menu is displayed the digital channels O to 7 can be switched o
141. relatively large resistive loss in series with the impedance of the capacitor or inductor A N Only discharged capacitors may be tested With semiconductors the transition from the non conduc Like mentioned in the chapter Safety all measurement connec tors as well as COMP TESTER contacts are connected to the mains safety earth in proper operation As long as individual components are tested this has no consequences because these components are not connected to the mains safety earth ting to the conducting state will be indicated in their charac teristic As far as is possible with the available voltages and currents the forward and backward characteristics are dis played e g with zener diodes up to 9V Because this is a two pole measurement the gain of a transistor can not be determined however the B C B E C E diodes can be mea sured With this exception the diodes can be measured wi thout fear of destruction as the maximum voltage is limi ted to 9V and the current to a few mA This implies howe ver that a measurement of breakdown voltages gt 9V is not possible In general this is no disadvantage because If there is a defect in a circuit gross deviations are to be expected which will point to the defective component Rather exact results may be achieved if the measurements are compared to those of intact components This is especially true for se miconductors The polarity of diodes or transistors can thus be ident
142. rent instrument setting allows the use of the HIGH RESOLUTION mode the detection mode is marked with HR in the upper right of the display The following requirements must be met to activate the HIGH RESOLU TION mode 1 Sampling rate is smaller than the maximum sampling rate no Interlace mode 1 Peak detection is deactivated 1 No active logic pod 1 None of the serial or parallel buses are active By default all functions listed above are deactivated Horizontal System 5 3 8 Interpolation With the soft menu item INTERPOLATION users can se lect Sinx x Linear or Sample Hold as interpolation type to display acquired data points The default setting is Sinx x interpolation which is the best option for displaying analog signals Linear interpolation LINEAR uses a line to con nect acquired data points SAMPLE HOLD allows a more precise assessment of the position for the acquired data points 5 3 9 Waveform Rate This soft menu item provides the following functions 5 3 9 1 MAX WFM RATE This mode allows you to select the memory depth and sampling rate to obtain the maximum trigger repeat rate This mode allows you to select the memory depth and sampling rate to obtain the maximum trigger repeat rate When using the MAX WAVEFORM RATE mode the oscil loscope is set to display the maximum amount of captures per second in the signal window Each column in the sig nal window displays a captured date When peak detection
143. ries It is imperative that the bit connectors are not connected To start the process select the menu item LOGIC PROBE in the SELF ALIGNMENT soft menu The process is similar to the basic instrument alignment but it only takes a few seconds TB 100us T 4yus Before starting the self alignment of the logic probe you have to plug the connector into the front panel Plug in all bit lines Ensure that it is not plugged off while alignment EXRORT is running None of the 90002 LOG micro crabbers must be connected to a signal Press start button to run self alignment Fig 2 13 Logic probe self alignment 2 9 Back Panel On the rear panel there are the main power switch 1 the receptacle for interface modules 2 USB RS 232 USB Ethernet IEEE 488 the DVI D connector 3 for the con nection of external monitors projectors the BNC connec tor for the Y output 4 selected channel for triggering and the external trigger input b With two channel models this connector is located on the front panel You can also find an additional USB port 6 and the main power input 7 2 9 1 DVI Connector The connection to current HDTVs via HDMI adapter can be prob lematically The most television sets expect an HDTV signal of at least 720p as input signal The rear panel of the oscilloscope includes a standard DVI D connector to connect external monitors and projec tors The DVI D connector can only send digital signal
144. s This means it is impossible to connect monitors or bea mers via their analog inputs The R amp S HMO Compact se ries yields a DVI signal with VGA resolution 640x480 This design enables connectivity with all standard TFT moni tors Modern flat screens extrapolate the signal allowing users to see a full screen Beamers can also be connec ted to the R amp AS HMO Compact series Ideal beamers in this case are those designed to be connected to computers Introduction SeeSeeeeee se QP ROKDEASCHWARZ 0720 Duabinteriaoe TE D o DF gt v P p p 5 wees Eaganneres im Germany Martactered n Card Reptile Savy Ks EXY TaS lt Whiley A Fig 2 14 Rear panel of the R amp S HMO2024 notebooks as these are also able to process a 640x480 pi xel resolution 2 9 2 Y Output connector The output signal of the R amp S HMO Compact series shows a small timeshift in the lower nano seconds time domain The R amp S HMO Compact series has an additional BNC con nector Y Output on the rear panel which is used to pass through and output the analog signal of the triggered channel on the one hand or to send alarm pulses when er rors occur during mask tests PASS FAIL on the other hand see chapter 9 This can be very useful for longterm data logging or if you want to trigger mask fails during au tomated production or testing processes The level of that analog output
145. s 23 55 lt 2 4ns 5ns 2 of full scale 1 mV Div to 10 V Div 13 calibrated steps 1 2 5 sequence freely between calibrated steps 1MQ Il 14 pF 2 pF 50Q switchable HMO152x HMO202x DC AC GND 200V gt p derates at 20 db decade to 5Vims above 100 kHz 0 Vims 10 Div from center of screen Offset control HMO152x HMO202x only 1mV Div 2mV Div 5mV Div to 50 mV Div 100 mV Div 200 mV Div to 2V Div 5V Div to 10V Div XY XYZ mode Inversion 0 2V 10 Div x sensitivity 1 0V 10Div x sensitivity 2 5V 10Div x sensitivity 40V 10 Div x sensitivity 100V 10Div x sensitivity selectively all analog channels selectively all analog channels Logic Channels with logic probe HO3508 Thresholds Impedance Coupling Max input voltage Trigger System Trigger Mode Auto Normal Single Trigger indicator Trigger sensitivity up to bmV Div from 5mV Div Trigger level setting with auto level without auto level Trigger coupling AC DC HF selectable filters LIF Low pass noise rejection External Trigger Input BNC Impedance Trigger level Max input voltage Coupling Trigger Types Edge Direction Switchable filters Sources Edge A B Direction Frequency range TTL CMOS ECL user definied 2 V to 8V 100kQ 4 pF DC 40 Vp Triggers automatically also without any specific trigger event Triggers only on specific trigger events Triggers
146. s you can use the FILTER key 36 for additional settings A soft menu will open allowing you to add a time limit to the TRIGGER ON option this menu shows the condition selected in the SOURCE menu Press the top soft menu key DURATION to add a time limit This option compares the duration of the output signal for the combination of the logic condi tions to the set duration ti If the duration is identical or not identical you can set the deviation At If t is within these parameters the trigger condition has been met The menu field below allows the selection of the comparison criteria The following criteria are available 1 ti t The duration of the applied bit pattern which will generate the trigger is unequal to the adjustable reference time 1 ti t The duration of the applied bit pattern which will generate the trigger is equal to the adjustable reference time 1 ti lt t The duration of the applied bit pattern which will generate the trigger is less than the adjustable reference time 1 ti gt t The duration of the applied bit pattern which will generate the trigger is greater than the adjustable reference time 27 Trigger System 1 t1 lt tj lt t2 he pulse width ti which will generate the trigger is less than the adjustable referance time t2 and greater than the adjustable reference time t4 1 not t1 lt tj lt t2 he pulse width which will generate the trigger is greater than the adjustable reference time
147. s binary or hexadecimal value If you choose the binary input the soft menu key SELECT BIT and the universal knob allow you to select which individual bits within the data are to be edited Select the option STATE to assign a logic state to each bit High H 1 Low L O or X don t care The state X defines any state If you choose the hexadecimal input the soft menu key VALUE and the universal knob allow you to set the value for the respective symbol If the input is hexadecimal only the TB Sus T 23 4Us UART B1 _ 400 MSa UART Trigger ist Symbol SYMBOL OFFSET Trigger Symbol 3 Trigger osymb z NUMB OF SYMB Start Bit 3 Symb r PATTERN INPUT Source D2 High Active Bit rate 115 2kBit s Bin idle Time 600 06us SELECT SYMBOL Trigger on Pattern 110000000 111101000 011100000 0x3 0x2 f 0xe 5 POD1 500m 200MSa entire symbol can be set to X Use the soft menu key SELECT SYMBOL to toggle between symbols PATTERN Offers additional options for UART trigger settings The soft menu key SYMBOL OFFSET and the universal knob are used to select the number of irrelevant symbols that proceed the pattern within the frame that are relevant for the trigger event Any value between 0 to 4095 symbols after the start bit may be entered Use the soft menu key NUMB OF SYMB to select the number of relevant symbols as 1 2 or 3 The number of symbol defines the pattern size The symbol length 5 to 9 bit was configured a
148. s by using the soft menu key MEAS PLACE and the universal knob in the CURSOR MENU section Following automatic measurement types can be selected MEAN VALUE This mode measures the mean value of the signal amplitude Mean If the sig nal is periodic the first period on the left of the screen will be used for the measurement The measure ment will only be applied to the selected channel RMS VALUE This mode identifies the effec tive value from the displayed view of the signal If the signal is periodic the first period on the left of the screen will be used for the measurement The effective value is not applied to a sine signal will be calcu lated directly so called TrueRMS The measurement will only be applied to the selected channel a rence in voltage between the maximum and the minimum peak value of the signal within the displayed view Vpp PEAK PEAK This mode measures the diffe PEAK This mode measures the maxi mum voltage value in the displayed view of the screen he measurement will only be applied to the selected channel Vp PEAK This mode measures the minimum voltage value in the displayed view of the screen he measurement will only be applied to the selected channel Vp FREQUENCY This mode identifies the fre quency of the signal from the reci procal value of the first signal period T f The measurement will only be applied to the selected channel PERIOD This mode m
149. ss multiple slaves can be linked with each other and can be addressed by the same master 1 Read Write bit Master reads data 1 or writes data O 1 Acknowledge issued after each byte The format of a simple 12C message frame with an address length of 7 bit is structured as follows Start condition Falling slope on SDA Serial Data while SCL Serial Clock is HIGH 1 7 bit address write or read slave 1 Read Write bit R W Indicates if the data is to be written or read out from the slave a a en Se os eens ee ae RW ACK DATA ACK DATA ACK START ADDRESS condition byte byte condition Frame Fig 12 4 l2C 7 bit address 50 Acknowledge bit ACK Is issued by the recipient of the previous byte if transmission was successful exception for read access the master terminates the data transmission with a NACK bit after the last byte 1 Data a series of data bytes with a ACK bit after each byte Stop condition rising slope on SDA Serial Data while SCL Serial Clock is HIGH 12 4 1 12C BUS Configuration Prior to the BUS configuration it is necessary to set the correct logic level threshold Please refer to chapter 4 5 The default setting is 500 mV To decode the I2C BUS it is necessary to determine du ring the bus configuration which logic channel will be con nected to the clock SCL and which one to the data line SDA This setting is selected after choosing the BUS TYPE I2C in t
150. ss filter with ad justable cut off frequency to suppress unwanted high fre quency interferences The cut off frequency can be set based on the sampling frequency The minimum setting is 1 100 of the sampling frequency and the maximum value is 1 4 of the sampling rate You can select this setting with the universal knob 5 3 6 Peak Detect This mode is used for very large time base settings to de tect even short signal changes You can also deactivate this function within the menu OFF or you can select the automatic switching mode AUTO The following condi tions must be met to activate the PEAK DETECT mode 1 Function HIGH RESOLUTION is deactivated 1 None of the serial or parallel buses are active During peak detection the oscilloscope distinguishes bet ween two types 1 Acquisition peak detection Each A D converter converts at the full sampling rate no Interlace mode even if results have not been written to the acquisition memory at full sampling rate for slow time bases for instance If peak detection is activated unused converter values will be evaluated to detect minimum and maximum amplitudes During this process the identified minimum and maximum values including sampling interval are written to the acquisition memory As a result the acquisition memory stores data pairs representing the signal sequence according to the sampling interval The smallest detectable pulse is the period of the maximum sampling rate no
151. t menu keys PREV NEXT BIT allow you to move the position of the selection bar for the source of the individual bits The selected bit is highlighted in blue The left side of the table contains the bits in fixed sequence beginning at the top with DO LSB The uni versal knob allows you to assign a real logic channel to the selected BUS bit The allocation is not subject to restric tions you can also use partially identical logic channels in the two possible buses If you select PARALLEL CLOCKED as BUS TYPE you can also use the bottom soft menu key CONTROL WIRES to select sources for CHIP SELECT and you can use the universal knob to select the settings for CLOCK The soft menu key ACTIVE is used to determine if the chip select signal High or Low Active is selected The soft menu key SLOPE allows you to toggle between rising falling and both slopes The active selection is always high lighted in blue and is listed in the bit source window Press the MENU OFF button to return to the BUS main menu To trigger on parallel buses It is recommended to use the logic trigger see chapter 6 5 12 4 12C BUS The 12C BUS is a two wire bus which was developed by Philips today known as NXP Semiconductor A 12C BUS has the following properties 1 Two wire bus 2 wire Clock SCL and data SDA 1 Master Slave Communication the master provides the clock pulse and selects the slave 1 Addressing Each slave can be addressed via unique addre
152. t of instru ment operation There are 4 keys destined for frequently used functions TYPE selection of trigger type EDGE A B PULSE LO GIC and VIDEO 1 SLOPE type of slope 1 SOURCE Determines the triggers source FILTER Determines the trigger conditions TRIGGER Fig 6 1 Front panel control area of the trigger system Additional keys are available to select the trigger modes AUTO NORMAL and SINGLE 6 1 Trigger modes Auto Normal Single The AUTO NORM 29 key allows you to toggle directly between the basic trigger modes If Auto mode is activa ted the key Is not illuminated Pressing the key will acti vate NORMAL mode and a red LED will highlight the key In AUTO mode the screen always displays a signal If a signal fulfills the trigger conditions the oscilloscope will synchronize with this event and triggers when the set con dition is met In case of a signal that does not fulfill the trigger condition a simple case would be direct current the oscilloscope itself will generate a trigger event This al lows a glance at the Input signals at any time regardless of the trigger condition In NORMAL mode the signal will now be captured and displayed if the trigger condition Is met In case no new signal fulfills the set trigger condition the signal that was triggered last will be displayed To en sure that only a signal that meets the trigger condition Is detected and displayed press th
153. t setting The control panel is divided into four sections amp ROHDE amp SCHWARZ HMO2024 200 MHz 2 GSa s 2 MB Oscilloscope TB 10us T 37us 200MSa Refresh hee KoinKosh K224 KDAan Wachi 29h KF 2h KBB K92h 7 An mee LOGIC CHANNEL POD re iiss ae A USE RECOMMENDED PROBE ONLY 54 Fig 2 1 Frontview of the R amp S HMO2024 8 Section Fig 2 2 Control panel of section A This section includes the CURSOR MENU ANALYZE and GENERAL sections The CURSOR MENU section includes cursor functions 8 universal knob 4 Intens Persist control switch 7 the op tion to select the virtual screen 6 the key for switching between fine and coarse resolution of the universal knob and the key for the selection of virtual screen 5 The ANALYZE section allows users to directly access the FFT displays 9 the QUICK VIEW display 10 all important pa rameters of the actual signal display the PASS FAIL mask test and the AUTO MEASURE settings 11 The GENERAL section includes the Save Recall key 12 With this option you can control the settings to load and save Instrument settings reference signals traces and screenshots Addi tional keys enable the user to access general settings such as language DISPLAY 14 AUTOSET 15 as well as in tegrated HELP 16 and FILE PRINT 17 Depending on how it is programmed FILE PRINT enables you to directly save ins
154. t the setting for measurement source reference source and slopes PHASE his mode measures the phase bet ween two slopes of two channels in the dis placed view of the screen Phs This mode measures the relation of the time delay between the set sources to the signal period of the measurement source This mode searches for the slope of the measurement source that is closest to the time reference Then begin ning from this point it searches for the nearest slope of the reference source The time difference and the signal period indicate the measurement result in degrees A sub menu MEASUREMENT SOURCE REFERENCE SOURCE allows you to select the measurement source and the re ference source with the universal knob in the CURSOR MENU section COUNT This mode counts positive pulses in the displayed view of the screen A positive pulse consists of a rising slope followed by a falling slope The mean value is calculated from the ampli tude of the measurement signal A slope will be counted if the signal runs through the mean value A pulse that pas ses the mean value only once will not be calculated The measurement will only be applied to the selected channel COUNT This mode counts negative pulses in the displayed view of the screen A negative pulse consists of a falling slope followed by a ri sing slope The mean value is calculated from the ampli tude of the measurement signal A slope will be counted if the sign
155. t the time of the bus definition and will be observed accordingly in the trigger menu The value input for the symbols may be binary or hexadecimal as described above Use the soft menu key PATTERN INPUT for this selection If binary input is selected the individual bits can be assigned via soft menu key SELECT BIT and the universal knob The soft menu key STATE allows you to determine the state for each bit 1 O or X If you choose the hexadecimal input the soft menu key VALUE and the universal knob allow you to set the value for the respective symbol Use the soft menu key SELECT SYMBOL to toggle between symbols The active byte will be marked with a green border in the display window of the trigger condition PARITY ERROR Trigger with a parity filter FRAME ERROR Trigger with a frame error BREAK Trigger with a break The BREAK condition Is fulfilled if a stop bit does not succeed a start bit within a specified time period The stop bits low are active during the break 7B 100y s 7 Os Any Symbol n Bit Even Source D2 High Active Symbol rate 115200Sy s Idle Time 600us UART B1 Trigger on Parity Error haa PAGE 22 Fig 12 17 UART trigger menu page 2 Press the MENU OFF button several times to close all me nus and the oscilloscope will trigger on the set bit se quence For measurements without measuring object ple ase refer to chapter 12 2 2 12 7 CAN BUS The CAN bus Controller Area
156. tected the soft menu key PRINT will no longer be grayed out Model HEWLETT PACKARD HP LASERJET 2420 Command set PILMLE PELL PCL PILPOSTSCRIF Fig 10 5 Supported printer example The supported printer will be displayed in the soft menu DEVICE INFOS The message This printer is supported does not guaranteed the the connected printer will be sup ported This message only means that the USB printer connection was successful and the important printer pro perties are available e g printer language PCL or PCL XL Connected PLC printers send an identification string to the instrument This identification string should be for all print ers the same standard but there are many printers on the market which have another identification string In this case the Instrument Is not able to detect the printer be cause the instrument does not have a Windows system in ternally to handle the identification string deviation If a printer connection is not possible you have the pos sibillity to use the HMExplorer software with the screen shot software module The free software HMScreenshot software module of the HMExplorer software enables the transfer of screenshots in bitmap format from the device via Interface to a connected PC where the screenshots may then be saved or printed For additional information on the software refer to the internal HMExplorer software manual HMS X_2015_02_10_0808 HMS X_201
157. ted name You may enter up to 8 charac ters Use the ACCEPT key to confirm the name in the edi tor It will then be shown in the display The name is assig ned to that specific signal and will move alongside any set offset value TB 500ns T 0s BIBLIOTHEK Nutzerdefiniert NAME EDITIEREN Fig 4 5 Name selection 19 Horizontal System 5 Horizontal System In the HORIZONTAL system section users can select time base settings for capturing trigger time position zoom functions acquisition modes marker functions and search functions Knobs allow you to set time base and trigger time position A menu enables you to select the desired acquisi tion mode A separate key Is available to activate the zoom Use the arrow keys lt gt 37 and the SET CLR key to select marker functions HORIZONTAL gt position Fig 5 1 Control panel of the horizontal system 5 1 Acquisition modes RUN and STOP The acquisition mode can be selected with the RUN STOP key 39 In Run mode signals are shown on the screen ac cording to the selected trigger conditions discarding pre viously captured signals with each new capture If you wish to analyze a captured signal on the screen without overwriting it capture must be stopped by pressing the RUN STOP key While in STOP mode you may not capture new signals and the key is illuminated in red 5 2 Time base setting The TIME DIV knob in the HORIZONTA
158. tegrated help You can access important basic settings such as language for user interface and help general settings and interface settings in the menu that opens when you press the SE TUP key in the GENERAL section On the first page of the menu for the basic settings you can select the language for user interface and help The menu item INTERFACE ac tivates the menus to perform the interface configuration USB or Ethernet The menu item PRINTER includes set tings for POSTSCRIPT and PCL compatible printers When pushing this soft menu key a submenu opens allowing the user to select the paper format and color mode Using the assigned soft menu key the top menu item PAPER FOR MAT allows you to choose from A4 Ab Bb B6 Execu tive Letter and Legal in either portrait or landscape for mat Use the universal knob in the CURSOR MENU section to select the appropriate format Following the same se tup procedure the menu item COLOR MODE allows you to choose between Grayscale Color and Inverted The Grays cale mode converts the color image to a grayscale image which can be printed on a black and white postscript prin ter The Color mode prints the image In color as shown on the screen black background The INVERTED mode prints the color image with a white background on a color printer thus saving toner and Ink When using the INVERTED mode you should set the intensity of the signals to about 70 to allow a high contrast print The m
159. tes the settings Span and Center in the frequency range The lower FFT display window will be outlined in white when the FFT is activated This means that the large knob in the time range section is used to select the span The span is specified in the unit Hz Hertz and identifies the width of the shown frequency range The span posi 38 tion can be determined by selecting the center value You may use the horizontal encoder X Position for this purpose The shown frequency range ranges from Center Span 2 to Center Span 2 The minimum increment depends on the time base The greater the time base the smaller the span Another important element for the FFT is the setting Max Sampling Rate in the ACQUIRE menu The soft menu key MODE allows you to choose from the following display types REFRESH This mode calculates and displays the FFT without additional evaluation or editing of the captured data The new input data is captured displayed and overwrites previously stored and displayed values 1 ENVELOPE In the Envelope mode the maximum deflections of all spectra will be stored separately in addition to the current spectrum and will be updated with each new spectrum These maximum values will be displayed with the input data and create an envelope curve The spectrum is located within the envelope limits This forms an area or a sleeve including all occurrences of FFT signal values With each signal parameter change
160. the first slope of the SOF bit synchronizing bit END OF FRAME Triggers on the end of the frame FRAME The submenu offers different options like trigger on ERROR general frame error OVERLOAD trigger on CAN Overload frames or DATA trigger on data frames With the soft menu key READ DATA you are able to trigger on read and data frames With the soft menu key IP TYPE the identifier type 11 bit 29 bit or any can be selected 1 ERROR S Identifies various errors in a frame This menu allows you to choose one or several error message types as trigger condition Individual frame segments e g frame start etc are coded during the bit stuffing procedure Ihe transmitter automatically adds a complimentary bit to the bit stream if it detects 5 consecutive bits with identical value in the bit stream to be transmitted A STUFF error occurs if the 6th identical bit level is detected in the specified sections A FORM error occurs If a fixed bit field contains one or several invalid bits An authentication error occurs if the transmitter receives no authentication acknowledge CAN BUS applies a complex checksum calculation Cyclic Redundancy Check The transmitter calculates the CRC and transmits the result in a CRC sequence The receiver calculates the CRC in the same manner A CRC error occurs If the calculated result deviates from the received CRC sequence IDENTIFIER Identifies the priority and the logical address of
161. the soft menu key LOAD To remove files that are no longer required you can use the universal knob to select the respective settings file and remove it by pressing the soft menu key REMOVE FILE If a USB stick is connected you can also change and delete directories Use the soft menu key SORT ENTRIES to sort several settings files by name type size or date STORAGE nterna FILE NAME ETOOO1 lt COMMENT Fig 10 2 Storing instrument settings The soft menu IMPORT EXPORT allows you to copy a file from an internal memory to an external storage medium USB stick or vice versa Source SOURCE FILE and tar get DEST PATH must be selected for copying Use the universal knob to select a storage location which will open a file manager Pressing the IMPORT EXPORT key by de fault will copy the selected settings file To import or export instrument settings you must have a USB stick connected otherwise the menu cannot be selected The menu item DEFAULT SETT also allows you to load the factory default settings 10 2 References References are data sets which consist of settings infor mation and A D converter data These may be stored and reloaded internally or externally Data can be reloaded into one of the 4 reference memories RE1 to RE4 which can also be displayed The main feature of references is the fact that all information e g vertical gain time base set ting A D converter data is included when saving or rel
162. the test ob ject has only a real part such as a resistor both voltages will be in phase the display will be a straight line more or less Slanted Is the test object short circuited the line will be vertical no voltage current maximum If the test object is Open circulted or missing a horizontal line will appear vol tage but no current The angle of the line with the horizon tal is a measure of the resistance value allowing for measu rements of resistors between Q and kQ Fig 9 10 Component tester at short If components are tested which are located in circuits or instru ments the circuits resp instruments must be disconnected first If they are operated from the mains the mains plug of the test object has to be pulled out This ensures that there will be no loops between the scope and the test object via the safety earth which might cause false results Capacitors and inductors cause phase shift between vol tage and current and hence between the voltages This will cause displays of ellipses The location and the form factor of the ellipse are determined by the apparent impedance at 50 Hz resp 200 Hz Capacitors can be measured between UF and mF An ellipse with its longer axis horizontal indi cates a high impedance small capacitance or large induc tance An ellipse with tts longer axis vertical indicates a low impedance large capacitance or small inductance An el lipse with Its longer axis slanted indicates a
163. the time position of both cursors relative to the trigger time the time difference between the two positions and the resulting frequency RATIO X In this measurement type three cursors are used to display a time ratio between the first two cursors plus the first and third cursor The results are shown in floating point format in percent in degrees and in radians V MARKER For the logic channels the logic value of the selected POD will be measured at the respective cursor and shown in hexadecimal and decimal format 11 5 Automatic Measurements for Logic Channels If the logic channels are activated you can use the au tomatic measurement functions to determine several parameters For all activated logic channels of a POD you can choose from the measurement types 1 FREQUENCY 1 PERIOD PULSE WIDTH DUTY CYCLE 1 DELAY 1 PHASE 1 BURST WIDTH 1 COUNT PULSE 1 COUNT pos neg 47 Serial Bus Analysis 12 Serial Bus Analysis 12 1 Software options license key The R amp S HMO Compact series can be upgraded with op tions voucher to trigger and decode serial buses 1 R amp S HOO10 R amp S HV110 The option R amp S HOOT10 resp the voucher R amp S HV110 can be used to trigger and decode 2C SPI and UART RS 232 buses on the digital channels option logic probe R amp S HOS3508 needed and on the analog inputs This option allows the decoding of two serial buses simultaneously R
164. tomatically return to the screenshot main menu The soft menu key FILE NAME opens the menu for the name entry where you can use the universal knob or the KEY PAD key in the CURSOR MENU section to enter a name and confirm your entry by pressing ACCEPT SCR is the default name The screenshot main menu will display au tomatically The file format of a graphics file determines the color depth and the type of compression The quality of the various formats Is identical for the oscilloscope gra phics You can choose from the following file formats BMP Windows Bitmap Format GIF Graphics Interchange Format 1PNG Portable Network Graphic With the soft menu key COLOR MODE and the universal knob in the CURSOR MENU section you can choose from the following color modes 1 GRAYSCALE If GRAYSCALE is selected the colors are converted to gray scales when the waveform is stored 1 COLOR If COLOR is selected the waveform is stored as it displays in the screen INVERT If INVERT is activated waveform is stored in color with white background If you press the key SAVE the current screen will be saved immediately to the selected storage location with the se lected name and format 10 4 1 Printer The soft menu key PRINT allows you to print a screenshot immediately to a connected printer PCL 5 PCL XL PCL 44 6 and Postscript settings are supported as printer lan guage PCL 3 is not supported If a printer is de
165. triggered signal PULSE WIDTH This mode measures the width of the negative pulse A negative pulse consists of a falling slope followed by a rising slope This measurement type Identifies the two slopes and calculates the pulse width from their time difference t The measurement will only be applied to the selected channel and requires a minimum of one completely dis played period of a triggered signal DUTY CYCLE This mode measures the po sitive duty ratio In this mode positive sig nal portions are identified over a specific pe riod and will then be analyzed in relation to the signal pe riod he measurement will only be applied to the selec ted channel and requires a minimum of one complete pe riod of a triggered signal The measured value Dty is dis played as a percentage of the signal period DUTY CYCLE This mode measures the ne gative duty ratio In this mode positive nega tive portions are identified over a specific pe riod and will then be analyzed in relation to the signal pe riod he measurement will only be applied to the selec ted channel and requires a minimum of one complete pe riod of a triggered signal The measured value Dty is dis played as a percentage of the signal period RISE TIME 90 This mode measures the rise time of the first rising slope in the displayed view of the screen t The rise time identifies the time in which the signal rises from 10 to 90 of its amplit
166. trument settings traces or screenshots CURSOR MENU CONE jm SELECT keveap G INTENS PERSIST SCROLL CURSOR BAR MEASURE ian C GUIA p43 GENERAL SAVE AUTO e RECALL Cr PASS FAIL QUICK VIEW SETUP HELP FILE DISPLAY PRINT AUTO MEASURE HORIZONTAL 52 51 50 49 Section The VERTICAL section fea tures all controls for analog channels such as the position control knob 18 the XY and component test mode 19 the vertical gain adjustment knob 20 the advanced menu op tions key 21 the channel se lect keys 22 to 25 the two channel versions have only 22 23 and the selection key for the optional logic probes 24 25 You can also access the MATH key 26 the reference signal settings and bus signal settings key 27 POSITION Section The TRIGGER section inclu des all options to set the trig ger level 28 to switch bet ween Auto and Normal mode 29 to set the trigger type 311 the source 32 the single trig ger 33 to switch the trigger slope 35 and to set the trigger signal filters 36 Additionally you can find status indicators and you can see if a signal ful fills the trigger conditions and which slope is used 34 Section BJ In the HORIZONTAL sec tion users can shift the trig ger position horizontally or set
167. ttings as USER 1 and return to the menu to edit the equation You can store up to 10 of these custo mized constants When saving a formula set you may also add a comment soft menu key COMMENT Press the key SAVE to save this formula set with the determined name and comment to the selected location Stored formula sets may be reloaded at any time Press the MATH key to acti vate the Mathematics menu and then press the MENU key below the VOLTS DIV key This menu displays the menu item LOAD This will start the file manager which will dis play the internal memory or the connected USB stick as possible storage location Select the respective formula set file and press the key LOAD to load the file It will be calcu lated but will not be included in the display You can also choose a NAME with a maximum of 8 characters load a formula set from the internal memory or from a USB stick or save a formula set internally or on a USB stick You can Analysis use the universal knob to enter the name of your choice and you can save It by using the ACCEPT key The name will now be displayed Instead of the generic labels MA1 to MAD You can specify the names for all equations separa tely Once all equations constants and names have been entered you may also choose a name for this formula set by pressing the NAME key in the formula set menu and entering the name of your choice EQUATION EDIT Parameter Fd bed UNIT A LAB
168. ude PN time of the first falling slope in the displayed view of the screen tr The fall time identifies the time in which the signal falls from 90 to 10 of its amplitude J time of the first rising slope in the displayed view of the screen trgo The rise time identifies the time in which the signal rises from 20 to 80 of its amplitude Aa time of the first falling slope in the displayed view of the screen trgo The fall time identi fies the time in which the signal falls from 80 to 20 of its amplitude FALL TIME 90 This mode measures the fall RISE TIME 80 This mode measures the rise FALL TIME 80 This mode measures the fall 33 Measurements o STD DEVIATION This mode measures the standard deviation of the signal amplitude in the displayed view of the screen The standard deviation is the measurement for the deviation of a signal from its mean value A low result indicates that the values are close to the mean value A higher result il lustrates that on average the difference between the va lues is greater DELAY his mode measures the time de lay between the set measurement source and the reference source This mode searches for the slope of the measurement source that is closest to the time reference Then beginning from this point it searches for the nearest slope of the reference source This time difference indicates the measurement result A submenu DELAY SETUP allows you to selec
169. ulse The level for the search function corresponds to the trigger level of the slope trigger for instance Level and hysteresis will display in the signal window The adjustable Comparison type is a search criterium for the detected time event width The pulse width is the time period between start and stop slope of the pulse Peak The peak search function searches for pulses within the signal The time of the event is the maximum value of the peak Rise time fall time This function searches for slopes with a specific rise fall time within the signal The point in time of a detected slope corresponds to the point in time when the signal leaves the set hysteresis The upper and lower level define the upper lower position of the hysteresis The adjusted level will display in the signal window The adjustable comparison type is a search criterium for the detected time event width Runt A runt is an aborted pulse within a signal This occurs when the rise times of the system are greater than necessary for the desired pulse width A positive runt exceeds the lower level of the hysteresis for instance but does not reach the upper level The analyzing digital circuits of this signal fail to detect the pulse which leads to transmission errors The pulse width of the runt is defined by the entry and exit point from the hysteresis duration between start and stop slope of the pulse The adjustable Comparison type is a search criterium for the dete
170. um number of available addresses is 112 The 10 bit addressing mode is downward compatible with the 7 bit addressing mode by using 4 of 16 reserved addresses and can be used simultaneously For a 10 bit address length a total of 1136 addresses 1024 128 16 is available The highest 10 bit address is 1023 Ox3FF The selected address 500 MSa BYTE OFFSET o 9 NUMBER OF BYTES PATTERN INPUT SSUES TE Eh eis C Trigger On Write Slave Address Ox 7f Byte Offset OByte Data 11000111 11111111 oollol1o1 Oxc Oxf f Ox35 SCL CH1 504 mY VALUE SDA CH2 500m PODI 500 mY Serial Bus Analysis 500 MSa MASTER Read ADDRESS LENGTH 10Bit Trigger On Write Slave Address Ox 7f 7Bit Byte Offset 890 Byte Data 11000111 SLAVE ADDRESS Ox7f ze SCL CH1 504 mY SDA CH2 500m POD1 500 mY length is displayed in the 12C settings window and is high lighted by the menu key in blue The SLAVE ADDRESS is the address used on the BUS to distinguish which slave the master communicates with Use the universal knob in the CURSOR MENU section to select the address for the observing bus participant to be triggered The soft menu DATA enables you to enter specific data in addition to the address With this menu you can trigger on clearly defined data bytes color cyan within the transmission allowing you to filter out irrelevant transmissions You can trigger on up to 24 bit 8 byte of data An offset of O to 4095 to the
171. up to 4 references 15ns to 16ns step size 1 ns up to 50 000 1 Time base Accuracy Aging Operation Modes REFRESH ROLE Acquisition System Realtime Sampling Rate 2 channel models 4 channel models Logic channels Memory Depth 2 channel models 4 channel models Resolution Waveform arithmetics Record modes Interpolation all analog channels logic channels Delay pre trigger post trigger Waveform update rate Wavetorm display Persistence afterglow Specifications 50 0 x 108 10 0 x 10 per year 2 ns Div to 50 s Div 50 ms Div to 50 s Div 2 x 1GSa s or 1 x 2GSa s 4 x 1GSa s or 2 x 2 GSa s 8 x 1GSa s 2 x 1MPts or 1 x 2MPts 4 x 1MPts or 2 x 2 Wikis 8 Bit HiRes up to 10Bit refresh roll loose triggered average up to 1024 envelope peak detect 1 ns filter low pass adjustable high resolution up to 10 Bit automatic max sampling rate max waveform rate sin x x linear sample hold pulse O to 8 x 108 Sa x 1 sample rate O to 2 x 108 Sa x 1 sample rate up to 2 000 Wfm s dots vectors persistence afterglow min 5Oms Waveform measurements and Operation Operation Automatic measurements Automatic search functions Cursor measurements Quick measurements QUICKVIEW Marker menu driven multilingual auto set help functions multilingual voltage Vpp Vp Vp Vrms Vavg Vmin Vmax amplitude phase frequency period rise fall time 80 90 pulse w
172. usinesses The measuring instrument is designed for indoor use only Before each measurement you need to verify at a known source If the measuring instrument functions properly To disconnect from the mains the low heat device socket on the back panel has to be unplugged 1 6 Ambient conditions Permissible operating temperatures during the operations range from 5 C to 40 C During storage or transporta tion the temperature may be between 20 C and 0 C In case of condensation during transportation or storage the Instrument will require approximately two hours to dry and reach the appropriate temperature It can then be op erated The measuring instrument is designed for use in a clean and dry indoor environment Do not operate with high dust and humidity levels if danger of explosion ex ists or with aggressive chemical agents Any operating po sition may be used however adequate air circulation must be maintained For continuous operation a horizontal or inclined position integrated stand is preferable The maximum operating altitude for the instrument is 2000m Nominal data with tolerance details apply once the ambient temperature of 23 C has been reached after about 30 minutes Values without tolerance details are ref erence values of an average instrument AN Do not obstruct the ventilation holes 1 7 Warranty and repair ROHDE amp SCHWARZ instruments are subject to strict quality controls Prior to leaving
173. using the universal knob or the KEYPAD key in the CURSOR MENU section Each analog channel may be shifted in time by 1bns This deskew setting is used to compensate different signal delays when using different cable lengths or probes 4 3 Bandwidth Limit and Signal Inversion Both the short menu and the advanced menu enable you to insert an analog 20 MHz low pass filter to the signal path This will eliminate all higher frequency interference To activate the filter in the short menu press the respec tive soft menu key BWL In the advanced channel MENU the bandwidth limit will be set with the soft menu key BANDWIDTH Once the filter is activated the menu item will be marked in blue and the identifier BW will be dis played in the channel information window Signal inversion is available in the short menu and the advanced menu In the VERTICAL section An activated filter will be indicated in blue in the menu and by a bar above the channel name 4 4 Probe Attenuation and Unit Selection Volt Ampere The HZO10 or optional HZ355 probes are recognized by the Instrument which automatically selects the appropri ate attenuation factor If any other probe without automatic attenuation or just a cable is connected to the instrument you can manually set the attenuation factor in the advan ced MENU in the VERTICAL section This is possible with the predefined steps x1 x10 x100 x1000 or using the uni versal knob or the KEYPAD key as defined b
174. ust be FAT format ted FAT32 It should be avoided to store a large number of files on the USB stick You can access the main menu to store and load func tions by pressing the SAVE RECALL key in the GENERAL section 10 1 Device settings 2 5MSa TB 200us T Os IMPORT EXPORT DEFAULT SETT Fig 10 1 Basic menu for device settings The soft menu DEVICE SETTINGS allows you to save cur rent instrument settings load saved settings and import or export instrument settings Press the soft menu key SAVE to open the Save menu You can use the soft menu key STORAGE to select a pos sible location internal memory or front USB connection where you would like to save the instrument settings Pres sing this key opens the file manager The FILE NAME can be changed or adjusted to the corresponding setting SET is the default label You can use the soft menu key COM MENT to enter a comment which will be displayed in the file manager footer once a file has been selected The option SAVE allows you to store the settings To reload stored preference files press the respective soft menu key to open the soft menu LOAD This opens the file manager where you can use the universal knob to select the respec tive file Once the storage location and the respective set Device settings of an older firmware version can not be loaded with a newer firmware version 42 tings file has been selected you can load the file by pres sing
175. vely you can enter the licence key manually Select the menu UPGRADE and press the soft menu key INPUT KEY manually This will open an input window Use the universal knob in the CURSOR MENU section and the ENTER key to enter the licence key manually After entering the complete key press the soft menu key ACCEPT to confirm the entry The option will be activated after restarting the instrument 12 By default the R amp S HMO Compact series is equipped with a dual interface USB RS 232 HO7 20 The following optio nal interface modules are available and may be installed by the customer in the rear receptacle HO730 HO732 combination of Ethernet and USB with integrated web server 1 HO740 IEEE 488 GPIB galvanically isolated All instruments of the R amp S HMO Compact series are pre pared for mixed signal operation and have the appropri ate connectors on the front panel Connecting an 8 chan nel logic probe R amp S HO3508 equips the scope with 8 logic channels Further options are the passive 500 MHz Slim line 10 1 probes of the type HZ355 passive 1000 1 pro bes with up to 4000 V of the type HZO20 active 10 1 pro bes with lt 1 pF input capacity of the type HZO30 active difference amplifier probes HZ100 HZ109 and HZ115 with up to 1000 Vims and 40 MHz active high speed differen tial probes HZO40 and HZO41 with 200 or 800 MHz band width the current probes HZO50 and HZO51 with up to 100 kHz bandwidth and up t
176. w impedance at 50 Hz 200 Hz there will be mostly great differences compared to indi vidual components If circuits of the same type have to be tested often service comparisons with intact circuits may help again This is also quickly done because the intact cir cuit has not to be functional also it should not be ener gized Just probe the various test points with the cables of the component tester of the unit under test and the in tact unit and compare the screen displays Sometimes the unit under test may already contain an intact portion of the same type this ist e g the case with stereo circuits push pull circuits or symmetrical bridge circuits In cases of doubt one side of the dubious component can be unsoldered and this free contact should be connected to the COMP TES TER contact which is not identified as the ground contact This will reduce hum pick up The contact with the ground symbol is connected to the scope chassis and is thus not susceptible to hum pick up 41 Documentation Storage and Recall 10 Documentation Storage and Recall The oscilloscope allows all screen displays that store user settings e g trigger condition and time base setting reference curves formularies and traces An internal memory integrated with the instrument Is available for reference curves and instrument settings Screenshots and trace data can also be stored on a connected USB stick The USB stick should not exceed 4 GB and m
177. ws you to activate and deactivate mathematical equations which are defined and displayed within the selected formula set The MENU key in the VERTICAL control panel opens a menu to select the formula set and its corresponding formulas The R amp S SHMO Compact series includes five mathematical for mula sets Each of these formula sets contains five formu las which may be edited with a formula editor to also de fine linked mathematical functions These are labeled MA1 to MAb You can use the universal knob in the CURSOR MENU section to select the formula set The formula set 250 MSa Formulary 1 EQUATION MAI ADD CH1 CH2 MAZ LP MAZ SOR MA1 new Spay Parameter OPERATOR OPERAND 1 mar OFERAND a EDIT CONS TANT Fig 9 3 Formula editor for formula sets 36 editor soft menu key EDIT FORMULARY lists all existing equations which may be edited A blue bar indicates that an equation is selected It is important to distinguish bet ween editing the display and editing the parameters Use the universal knob in the CURSOR MENU section to se lect the respective equation and activate by pressing the soft menu key VISIBLE An activated visible equation is marked by a filled in eye symbol in the formula editor and is listed in the short menu With the soft menu UNIT you can use the universal knob in the CURSOR MENU section to select the following units I V Volt Hz Hertz I Ampere
178. y be available if it was configured earlier Press the FIL TER button in the TRIGGER section of the control panel to list all available SPI trigger conditions The following trigger conditions can be defined FRAME START Sets the trigger event on the start of the frame The frame starts when the chip select CS signal switches to the selected active mode FRAME END Sets the trigger event on the end of the frame The frame ends when the chip select CS signal switches from the selected active to the inactive mode 1 BIT Selects the trigger time to the set bit within the set bit sequence with the universal knob in the CURSOR MENU section You can also enter a numeric value to determine the desired bit number KEYPAD button TAOS 500 MSa FRAME START Clock D1 500 mY Data D2 500m cS DO 500m SER PATTERN aa 7a Av Fig 12 11 SPI trigger menu 1 SER PATTERN Use the soft menu SER PATTERN to define a specific bit sequence within the frame which Start the trigger event The soft menu key BIT OFFSET allows you to select the first bit of the predefined bit sequence within the frame The bits in front of it have no impact on the trigger event for instance if the bit offset 2 bit O and bit 1 after CS will be ignored and the pattern begins with bit 2 You can select a value between 0 and 4095 via universal knob or enter it numerically KEYPAD button The soft menu key NUMBER OF BITS allows you to sele
179. y the user from x0 001 to x1000 In this menu you can also select the UNIT Ampere in case you are using a current probe If you select the unit Am pere A the menu shows the most common factors 1V A 100mV A 10mV A 1mV A You may also use the USER setting to select any given value You can set the value using the universal knob or the KEYPAD key in the CUR SOR MENU section This setting may also be used to mea sure the voltage via shunt All measurements are always displayed with the correct unit and scale 4 5 Threshold Setting On page 2 2 in the advanced MENU in the VERTICAL sec tion you can set a THRESHOLD This threshold defines the level to detect a High or a Low if analog channels are used as source for the serial bus analysis or logic trigger After selecting this soft menu item you can set the threshold using the universal knob or the KEYPAD key TERZA Be Os PAGE 22 Fig 4 4 Threshold setting and name allocation Vertical system 4 6 Name a channel The last entry NAME in the VERTICAL menu opens a sub menu which allows you to enter a channel name This name will be displayed on the grid and the printout Your first option is to switch the display on ON or off OFF The next option includes the menu item LIBRARY After selecting this option you can use the universal knob to choose a name from several suggestions The EDIT LABEL key allows you to enter a completely new name or to cus tomize the sugges

Digital Oscilloscope ¸HMO Compact Series User Manual

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Digital Oscilloscope &cedil;HMO Compact Series User Manual

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Digital Oscilloscope ¸HMO Compact Series User Manual