Home

DaqBoard/3000USB Series User`s Manual

1. DBK215 pg A 10 886994 Appendix A Correlation to Analog Input BNC Terminations BNC 0 through BNC 7 Virtual Terminal Blocks TB13 and TB14 for ANALOG INPUT connect to TB9 and TB10 through the printed circuit board a a Ea k 68 Pin ZA 1513 does not physically exist on 3NC CH_ DIFF SE Pin SE Sing a _ Jumper Ysea DBK215 A silkscreen of TB13 is H 0 68 CHOIN SE CHO HI IN DIFF present as a visual aid to signal BNCO oL 8 34 CH8IN SE CHOLO IN DIFF routing and configuration BNC1 CH 1 IN SE CH 1 HI IN DIFF ji sE BNC1 1L 9 66 CH9IN SE CH 1 LO IN DIFF DIFF BNC2 2H 2 65 CH 2 IN SE CH 2 HI IN DIFF EAEN BNC2 CH 10 IN SE CH 2 LO IN DIFF ae A header located beneath TB14 and BNC3 CH 3 IN SE CH 3 HI IN DIFF TB16 is used to set the BNC BNCO CH 11 IN SE CH 3 LO IN D DIFF channels to Single Ended or to _AGND na na gt Analog Ground na Differential Simply place channel s Analog Ground NA 2Pin jumper in the appropriate TB14 Virtual Terminal Block 68 Pin SCSI Conn Pin Numb Description oC Je DI Ia noer Us ed position SE or DIFF nit 1 TB14 does not physically exist on _ DBK215 A silkscreen of TB14 is present as a visual aid to signal routing and configuration SE DIFF BNC4 CH 12 IN SE CH 4 LO IN DIFF BNC5 5H 5 60 CH5IN
2. In the following example the criteria for setpoints 0 1 and 4 is satisfied True but the criteria for the other 13 setpoints has not been met psocome as slis liz li tote e 7 eds letale lito True 1 False 0 lt lt lt Most Significant Bit Least Significant Bit gt gt gt From the above table we have 10011 binary or 19 decimal derived as follows Setpoint 0 having a True state shows 1 giving us decimal 1 Setpoint 1 having a True state shows 1 giving us decimal 2 Setpoint 4 having a True state shows 1 giving us decimal 16 N fe For proper operation the Setpoint Status Register must be the last channel in the scan j list DaqBoard 3000 Series Users Manual 887794 Setpoint Configuration for Output Control 6 11 6 12 Setpoint Configuration for Output Control 887794 DaqBoard 3000 Series User s Manual Specifications DaqBoard 3000USB Series T I O Comparison Matrix Model Analog Input Analog Output Digital I O Counter Timer DaqBoard Channels ADC Channels DAC Channels Inputs Outputs 24 4 2 3001USB 16SE 8DE 4 24 4 3005USB 16SE 8DE a ee 3035USB 64SE 32DE 0 24 4 General Specifications Power Consumption per board Model Power Consumption Typical An optional power adapter TR 2 will be required if the 3001USB 3000 mW USB port cannot supply adequate power USB2 ports 3005USB 2000 mW are by USB2 standards re
3. py 2 344 i 1 736 623 Be be 2 630 A eta f 246811 A gd oe cer 282 328 275 la 440 TB 100 190 1 562 3 528 4 678 5 178 6 000 DaqBoard 3000USB Series Board Dimensions In general all standoffs should be used to mount the board to a metal frame Note 1 The standoff at this location connects to the USB chassis for shunting electrostatic discharge Note 2 The standoff at this location connects to the DaqBoard 3000USB board s internal chassis plane for shunting electrostatic discharge WARNING Avoid redundant connections Ensure there is no signal conflict between SCSI pins and the associated header pin J5 J6 J7 and J8 Also ensure there is no conflict between TB7 thermocouple connections and the SCSI and or the 40 pin headers Failure to do so could possibly cause equipment damage and or personal injury DaqBoard 3000USB Series Installation Guide 936993 IG 5 WARNING Turn off power to all devices connected to the system before making connections Electrical shock or damage to equipment can result even under low voltage conditions Scenario 1 Using CA 248 Cables to obtain DB37 Connectors DB37 Male Connector Part of Cable CA 248 40 Pin Header Cable Option 1 of 4 pg p Ss sa 3000USB d Series Board n i CA 179 x USB Cable In this setup a CA 248 cable is connected to each of the 40 pin headers J5 J6 J7 and J8 The result is four male
4. 5 Tighten the terminal block screws snug but do not over tighten 6 After all terminal connections are made and verified correct return the cover to the unit and secure in place with the 4 screws removed earlier Tighten snug but do not over tighten DBK215 pg A 6 886994 Appendix A In general the following terminal block to signal relationships apply ANALOG INPUT BNC 0 thru 7 N A ANALOG INPUT ch n ose er LEFLEN ee Mer See ae ae ee ae DIGITAL I O AM CDTI ang Da pe HEI j gu zy CRE ape AM sa ri EI ENET TB13 ANALOG INPUT TB9 TB10 TB14 BNC Channels O thru 7 USER See Note 1 CONFIGURABLEB NC Channels DBK215 Board A thru H Not Used PULSE FREQUENCY ANALOG OUTPUT P4 is used for connecting to DaqBoard 2000 Series devices TB13 and TB14 are virtual terminal blocks which are routed in the printed circuit board to TB9 and TB10 The TB13 and TB14 silk screened locations on the DBK215 board do not have physical screw terminal blocks Note 1 TB15 and TB16 are used for optional user configured BNC connectors A through H These connectors can be configured on a per channel basis as Analog Input or Output Digital I O or Counter Timer When BNC A through H are used the user must route wires from the BNC routing terminal blocks TB15 and TB16 to the appropriate functional TB termination points Accessory Wire Kit p n 1139 0800 includes jumper wires and a
5. 9 slot Screw Terminal TB7 External Power SCSI P5 68 Pin 1 4 Device Overviews The 68 pin SCSI connector includes pins for the following Chapter 2 includes a pinout 16SE 8DE analog A D pacer clock I O analog commons inputs Ch 0 thru 15 o DAC pacer clock I O O digital commons O 24 digital I O o TTL trigger O up to four DACs according to 4 counter inputs o 5 VDC board model O 2 timer outputs Oo self calibration You can connect a TB 100 screw terminal board or a DBK215 BNC screw terminal module to the SCSI connector via one of the following cables CA G55 68 conductor ribbon expansion cable 3 feet CA G56 68 conductor shielded expansion cable 3 feet CA G56 6 68 conductor shielded expansion cable 6 feet Four 40 pin headers J5 through J8 provide an alternative connection to the signals of the SCSI connector Also for the 3031USB and 3035USB the J5 and J6 headers accept additional analog input for a total of 64 Single Ended or 32 Differential You can obtain a male DB37 connector for each header by connecting a CA 248 40 pin to male DB 37 cable to each header The on board screw terminal connector TB7 can be used to connect up to four thermocouple inputs TB7 uses the following analog channels which can also be accessed via the SCSI connector and J5 to obtain its 4 differential channels TC CHO CH 0 CH 8 TC CH1 CH 1 CH 9 TC CH2 CH 2 CH 10 TC CH3 CH 3 C
6. RC Filter Network User Configurable Per Channel TB11 CA 5 TB12 TB5 TB7 OIS ORCA SIO KA CHH TE6 TBS TB15 supports BNCA thru BNCD TB16 Supports BNCE thru BNCF DBK215 Block Diagram PS Analog Input 16 7 Acquisition Pacer Power f Digital I O 24 Analog Out La Counter Timer 68 Pin High Speed SCSI Digital IO Accessory Kit p n 1139 0800 includes jumper wires and a screw driver Note that the 68 pin SCSI P5 connector typically connects to a SCSI connector via a CA G55 CA G56 or CA G56 6 cable o CA GS5 is a 3 foot long cable CA GS6 is a 3 foot long shielded cable CA G56 6 is a 6 foot long shielded cable 886994 Appendix A Connection Tips Turn off power to the host PC and externally connected equipment prior to connecting cables or signal lines to DBKs Electric shock or damage to equipment can result even under low voltage conditions Take ESD precautions packaging proper handling grounded wrist strap etc Use care to avoid touching board surfaces and onboard components Only handle boards by their edges or ORBs if applicable Ensure boards do not come into contact with foreign elements such as oils water and industrial particulate 1 Ensure power is removed from all device s to be connected Pi see 2 As soon as the DBK215 cover is removed verify that the Host Power LED is Off See figure at right fo
7. 1 736 623 E E 2 630 S E 2A 329 275 Joz 1007 __ 3 528 4 678 5 178 6 000 DaqBoard 3000USB Series Board Dimensions In general all standoffs should be used to mount the board to a metal frame Note 1 The standoff at this location connects to the USB chassis for shunting electrostatic discharge Note 2 The standoff at this location connects to the DaqBoard 3000USB board s internal chassis plane for shunting electrostatic discharge Note Specifications are subject to change without notice 918593 Specifications 7 11 This page is intentionally blank 7 12 DaqBoard 3000USB Series Specifications 918593 Note Specifications are subject to change without notice Appendix A DBK215 16 Connector BNC Connection Module With 68 Pin SCSI Adaptability for Analog I O Digital I O amp Pulse Frequency Overview 1 Block Diagram 2 Connection Tips 3 System Examples 4 Using the Screw Terminal Blocks 6 Adding RC Filter Networks 12 Specifications 14 DBK215 Front Panel Upper Slot for Terminal Board Wiring Pass Through Lower section of 16 BNC Connectors The DBK215 module is compatible with the following product series e DagBoard 500 e DagBoard 1000 e DaqBoard 3000 e DaqBoard 3000USB Overview Fo j ci e ei wi tT bs zm CM ee i il ja ala DBK215 Rear Panel Includes a 68 pin SCSI connector designated as P5 The
8. Range Hz 15u 100 150u 1k 1 5m 10k Frequency Ranges for a 32 bit Value Sampling Error ts Less than 0 21 The 32 bit ranges shown above are much wider than the 16 bit ranges but also require the full 32 bit value to be returned Since digital or counter channels do not take up any time in the scan period there is no disadvantage in reading a 32 bit counter versus a 16 bit counter The 32 bit frequency ranges can also be exceeded with a loss of accuracy or topping out at 4 294 967 295 counts Some measurements will require the accuracy of an input waveform to be free of sampling error having only the absolute accuracy of the internal timebase as the source of error Sampling error can be averaged out to give the required result In most cases the 3000USB Series board can perform the required averaging on the values before they are returned to the PC The frequency ranges shown below will give a sampling error that is less than 10ppm or 1ppm Full 32 bit Counter lt 10 ppm Full 32 bit Counter lt 1 ppm Range Hz Ticksize nS Averaging Range Hz Ticksize nS Averaging Option Option 1 5m 50 208 333 i 15m 500 20 833 15m 50 20 833 150m 5k 20 833 150m 500 20 833 1 5 50k 20 833 1 5 5k 20 833 15 500k 20 833 1000 15 50k 20 833 1000 High Accuracy Frequency Ranges for a 32 bit Value that has little sampling error lt 10ppm lt Ippm If the input frequency is r
9. 0 031 0 04 0 036 0 05 Oo 0441 80 Specifications assume differential input single channel scan 1 MHz scan rate unfiltered CMV 0 0V 30 minute warm up exclusive of noise range is FS to FS Noise reflects 10 000 samples at 1 MHZ typical differential short TC Types and Accuracy B 300 to 1400 3 0 1 0 Assumes 16384 oversampling applied CMV 0 0V 60 minute warm up still environment and 25 C ambient temperature excludes thermocouple error TC 0 C for all types except B 1000 C TR 2 for External Power Type T thermocouple Lines represent theoretical noise Noise in C Peak to Peak 200 0 100 Measured Temperature C 7 4 DaqBoard 3000USB Series Specifications 918593 Note Specifications are subject to change without notice AID Specifications Type Successive approximation Resolution 16 bit Maximum Sample Rate 1 MHz Nonlinearity Integral 2 LSB maximum Nonlinearity Differential 1 LSB maximum Input Sequencer Analog digital and counter inputs can be scanned synchronously based on either an internal programmable timer or an external clock source Analog and digital outputs can be synchronized to either of these clocks Scan Clock Sources 2 Note The maximum scan clock rate is the inverse of the minimum scan period The minimum scan period is equal to 1us times the number of analog channels
10. DaqBoard 3000USB Series User s Manual USB 1 MHz 16 Bit Data Acquisition Boards A Hardware Reference Manual for Requires one of the following DaqBoard 3001USB Operating Systems DaqBoard 3005USB DaqBoard 3031 USB Windows 2000 DaqBoard 3035USB Windows XP 1Otech Inc 25971 Cannon Road Cleveland OH 44146 1833 Phone 440 439 4091 Fax 440 439 4093 E mail Product Information sales iotech com E mail Technical Support productsupport iotech com Internet www iotech com DaqBoard 3000USB Series User s Manual USB 1 MHz 16 Bit Data Acquisition Boards pin 1136 0902 rev 3 0 2006 by lOtech Inc 918493 Warranty Information Your IOtech warranty is as stated on the product warranty card You may contact IOtech by phone fax machine or e mail in regard to warranty related issues Phone 440 439 4091 fax 440 439 4093 e mail sales iotech com Limitation of Liability TOtech Inc cannot be held liable for any damages resulting from the use or misuse of this product Copyright Trademark and Licensing Notice All IOtech documentation software and hardware are copyright with all rights reserved No part of this product may be copied reproduced or transmitted by any mechanical photographic electronic or other method without Otech s prior written consent IOtech product names are trademarked other product names as applicable are trademarks of their respective holders All supplied IOtech
11. Example 3 Analog and digital channel scanning once per scan mode The scan is programmed pre acquisition and is made up of 6 analog channels Ch0 Ch2 Ch5 Ch11 Ch22 Ch25 and 4 digital channels 16 bits of digital IO 3 counter inputs Each of the analog channels can have a different gain and each of the counter channels can be put into a different mode totalizing pulsewidth encoder etc The acquisition is triggered and the samples stream to the PC via USB2 Each analog channel requires one microsecond of scan time therefore the scan period can be no shorter than 6 us for this example All of the digital channels are sampled at the start of scan and do not require additional scanning bandwidth as long as there 1s at least one analog channel in the scan group The scan period can be made much longer than 6 us up to 19 hours The maximum scan frequency is one divided by 6us or 166 666 Hz Start of Scan Start of Scan Start of Scan Start of Scan lo 2 s u azjas foj2 s arjaa as fof 2 s aajozias o 2 sftf22 25 lus Scan Period The counter channels could be returning only the lower 16 bits of count value if that is sufficient for the application They could also be returning the full 32 bit result if necessary Similarly the digital input channel could be the full 24 bits if desired or only 8 bits if that is sufficient If the 3 counter channels are all returning 32 bit values and the digital input channel is returning a 16 bit
12. up to 4 thermocouples The first TC channel makes use of Analog Channel 0 AGHI for its positive lead and Analog Channel 8 for its negative lead The second TC channel uses analog Channels and 9 and so on as indicated in the pinout to the left In DaqBoard 3000USB Series applications thermocouples should only be connected in differential mode Connecting thermocouples in single ended mode can cause noise and false readings Appendix B of the user s manual includes additional information A CA 179 x USB cable is used to connect the 3000USB Series board to a USB port on the host PC USB2 0 is recommended 936993 DaqBoard 3000USB Series Installation Guide The discharge of static electricity can damage some electronic components Semiconductor devices are especially susceptible to ESD damage You should always handle components carefully and you should never touch connector pins or circuit components unless you are following ESD guidelines in an appropriate ESD controlled area Such guidelines include the use of properly grounded mats and wrist straps ESD bags and cartons and related procedures OIGI TAL POINTS ALF 0 Bt 7 00 7 0 ANALOG INPUTS DIFF SINGLE Ce PHD CHI LAD PACER CLOCK KAPTA ACH2 ANALOG OUTPUTS XDACC3 0 ACH ORC PAROLE CLOCH KOPOO PLM COUNTER INPUTS CNF 0 ACHS TEL TRIGGER INPUT TTLTRG TIMER OUTPUTS Treit1 0 LOW LEVEL SENSE GRADI SGND A EARTH GROUND EGNO DIGIT
13. 1 5 Software 1 17 Reference Notes o The Specifications chapter Chapter 7 includes a dimensional drawing of the DaqBoard 3000USB Series board o Chapter 2 includes pinouts and connection examples o Programming topics are covered in the Programmer s User Manual p n 1008 0901 o Asa part of product support PDF versions of manuals are automatically loaded onto your hard drive during software installation The default location is the Programs group which can be accessed through the Windows Desktop DaqBoard 3000USB DaqBoard 3000USB Series User s Manual 988093 Device Overviews 1 1 Block Diagrams USS Digha io Ance Note 3 a a E shicthe 3a E DEVO rogram cita T Ano ingr Son mode ala la i ab ali gl 2 OD input Paotecior One TTL hgga input One Analog input Foce Doci Fab 154 Time Date TAAN Courier routs es teen ua h Peri Pe eit Corinzi 7 Ie fe Eubea Converter gi Toe Plate 2 Configuratile Coniguctis Y PLD EEFE OI OO N GN li La IO OI O Tete 4 Block Diagram for DaqBoard 3001USB and 3031USB Note 1 Pins forall digital I O counters timers and 16 analog inputs are on the 68 pin SCSI connector Chapter 2 includes pinouts Note 2 Optional power source TR 2 adapter connects to the External Power connector if the USB cannot supply enough power See Specifications Chapter 7 in regard to power consumption Note 3 D
14. 2 3 3 8 3 8 8 2 8 8 2 a 3 lt 8 3 gt DaqBoard 3000USB Series Installation Guide J5 and J6 40 Pin Headers for Analog Channels Note All channels are available for DaqBoard 3031USB and 3035USB Channels 16 through 63 are not available for DaqBoard 3001USB and 3005USB me i SN 2 40 This edge of the header is closest to Ba w Rete Ca eee can board s center Note that pins 2 a p and 40 are labeled on the board DB 3 9 rams 1 39 overlay PR Each 40 pin header can be terminated outto a DBI7 male connector via the CA 248 cable CH 19 CH 43 1 CH 59 CH 26 3 CH 18 CH 35 3 CH 51 Analog Com 5 Analog Com Analog Com 5 CH 58 CH 3 Ay 7 CH 11 Ar CH 42 7 CH 50 CH 2 A 9 10 CH 10 Ar CH 34 9 CH 57 CH 17 11 12 CH 25 Analog Com 11 CH 49 CH 16 13 14 CH 24 CH 41 13 CH 56 CH 1 Av 15 16 CH 9 A CH 33 15 CH 48 CH 0 Ay 17 18 CH 8 AN CH 40 17 Analog Com Analog Com 19 20 Analog Com CH 32 19 CH 63 CH 23 21 22 CH 31 CH 47 21 CH 55 CH 22 23 24 CH 30 CH 39 23 Analog Com CH7 25 26 CH 15 CH 46 25 CH 62 CH 6 27 28 CH 14 CH 38 27 CH 54 Analog Com 29 30 CH 21 Analog Com 29 CH 61 CH 29 31 32 CH 20 CH 45 31 CH 53 CH 28 33 34 CH5 CH 37 33 CH 60 CH 13 35 36 CH 4 CH 44 35 CH 52 CH 12 37 38 Analog Com CH 36 37 Analog Com Analog Com 39 40 Analog Com Analog Com 39 Analog Com A For Analog Channels 0 1 2 3 8 9 10 and 11 Read the following WARNING which applies to their use as thermocouple channels TB7 4
15. C or above 28 C or if the product is near or outside its calibration interval then the absolute accuracy may be improved through the use of an external temperature calibrator A temperature calibrator is a temperature simulation instrument that allows selection of thermocouple type and temperature For proper operation it must be connected to the 3000USB Series board with the same type thermocouple wire and connector that is used in normal testing The calibrator then generates and supplies a voltage corresponding to that which would be generated by the TC type at the associated temperature The temperature selected on the calibrator will be dictated by the nature of normal testing 0 C is usually the best choice Calibrators are the most accurate at this setting and the connecting thermocouple wire will contribute very little error at this temperature However if the dynamic range of the normal testing 1s for example 100 C to 300 C a selection of 200 C may give better results In either case the level of adjustment is determined by comparing the unit reading to the selected calibrator temperature For example if the calibrator is set to 0 C output and the board reads 0 3 C then an adjustment of minus 0 3 C is required That is the adjustment value is determined by subtracting the board s reading from the calibrator setting To implement the adjustment in Daq View 1 Ensure that the acquisition process is turned off 2 C
16. DaqBoard 3000 Series User s Manual Detecting Input Values All setpoints are programmed as part of the pre acquisition setup similar to setting up the analog path debounce mode or counter mode setup Since each setpoint acts on 16 bit data each has two 16 bit compare values Limit A High Limit and Limit B Low Limit These limits define the setpoint window There are several possible conditions criteria and effectively 3 update modes as can be seen in the following configuration summary Setpoint Configuration Summary O 16 bit High Limit identified as Limit A in software 16 bit Low Limit Identified as Limit B in software Criteria inside window Signal is below Limit A and Above Limt8__ Equal to value Signal is equal to Limit A Limit B is not used Note that the Equal to mode is intended for use with counter or digital input channels as the source channel See the TIP below Hysteresis mode Outside the window high forces Output 2 until an outside the window low condition exists then Output 1 is forced Output 1 continues until an outside the window high condition exists The cycle repeats as long as the acquisition is running in Hysterisis mode Update Mode Update on True Only Update on True and False None Do not update O 16 bit DAC value P2C value or Timer value when input meets criteria 16 bit DAC value P2C value or Timer value when input does not meet criteria Ty
17. The Reader provides a means of reading and printing the PDF documents Note that hardcopy versions of the manuals can be ordered from the factory 1 18 Device Overviews 988093 DaqBoard 3000USB Series User s Manual Connections and Pinouts 2 68 Pin SCSI Connector P5 2 2 J5 and J6 40 Pin Headers for Analog Channels 2 3 TB7 4 Channel Thermocouple Terminal Block 2 3 J7 and J8 40 Pin Headers for Digital Ports Counters Timers DACS Triggers Pacer Clocks and Other Signals 2 4 CA 248 40 Position Header to DB 37 Male Ribbon Cable 2 5 TB 100 Terminal Connector Option 2 6 TB 101 Terminal Board Option 2 7 DBK215 16 Connector BNC Connection Module Option 2 11 Hardware Setups 2 12 WARNING Turn off power to all devices connected to the system before making connections Electrical shock or damage to equipment can result even under low voltage conditions The discharge of static electricity can damage some electronic components Semiconductor devices are especially susceptible to ESD damage You should always handle components carefully and you should never touch connector pins or circuit components unless you are following ESD guidelines in an appropriate ESD controlled area Such guidelines include the use of properly grounded mats and wrist straps ESD bags and cartons and related procedures Pinouts for both the TB 100 and the DaqBoard 3000USB Series boards fol
18. after which acquisition continues until a stop trigger event occurs o Nopre trigger infinite post trigger No pre trigger data is acquired in this mode Instead data is acquired beginning with the trigger event and is terminated when the operator issues a command to halt the acquisition o Fixed pre trigger with infinite post trigger The user specifies the amount of pre trigger data to acquire after which the system continues to acquire data until the program issues a command to halt acquisition o Variable pre trigger with post trigger stop event Unlike the previous pre trigger modes this mode does not have to satisfy the pre trigger number of readings before recognizing the trigger event Thus the number of pre trigger readings acquired is variable and dependent on the time of the trigger event relative to the start In this mode data continues to be acquired until the stop trigger event is detected Driver support only 1 12 Device Overviews 988093 DaqBoard 3000USB Series User s Manual o Variable pre trigger with infinite post trigger This is similar to the mode described above except that the acquisition is terminated upon receipt of a command from the program to halt the acquisition Driver support only Calibration Every range of a DaqBoard 3000USB Series device is calibrated at the factory using a digital NIST traceable calibration method This method works by storing a correction factor for each range on the unit at the
19. counts period pulsewidth timing or encoder position A channel s detect signal will show a rising edge and will be True 1 when the channel s data meets the setpoint criteria The detect signal will show a falling edge and will be False 0 when the channel s data does not meet the setpoint criteria The true and false states for each setpoint criteria appear in the Setpoint Status Register see page 6 11 DaqBoard 3000 Series User s Manual 887794 Setpoint Configuration for Output Control 6 1 Detect Rising Edge Condition fue Ghannel input Criteria Input Signal is Equal to X Limit A or Limit B e Equal to A e Below A e Above B Choose 1 Window non Hysterisis Mode e Inside e Outside B gt X orX gt A Choose 1 Window Hysterisis Mode e Above A e Below B Both conditions are checked when in Hysterisis Mode Condition Detect Falling Edge Condition False Action Action Driven by Condition True Only If True then Output Value 1 If False then perform no action True and False If True then Output Value 1 If False then Output Value 2 True Only If True then Output Value 1 If False then perform no action True and False If True then Output Value 1 If False then Output Value 2 Hysterisis Mode Forced Update If X gt A is True then Output Value 2 until X lt B is True then Output Value 1 If X lt Bis True then Output Value 1 until X gt A is
20. differential bipolar input Adding additional analog input channels to the 3031USB and 3035USB boards is easy using J5 and J6 two of the four on board 40 pin headers You can obtain male DB37 connectors for the headers by using a CA 248 cable 1 per header Measurement speed of the expansion channels is the same 1 Msample s exhibited by the primary channels Reference Notes Pinouts for all DaqBoard 3000USB on board connectors are provided in chapter 2 1 10 Device Overviews 988093 DaqBoard 3000USB Series User s Manual USB2 0 versus USB1 1 Triggering Connecting a DaqBoard 3000USB Series board to a USB1 1 port or hub will result in lower transfer speed which may not support continuous data collection at high scan rates Note that Hi Speed USB2 0 ports are at least forty times faster than the earlier Fu Speed USB1 1 versions When the host computer has a board with USB 2 0 ports an Enhanced USB controller can be found in the Device Manager The Device Manager will also show two other USB controllers This is due to the fact that USB2 0 circuitry includes 3 chips one for the actual USB2 0 capable devices and two for backward USB1 1 compatibility Thus a USB 2 0 motherboard can host any USB device version 2 0 or lower assuming there are no defects with the board system and or device Notes on USB Hubs e USB 1 1 obsolete hubs will work on USB 2 0 ports but cannot utilize USB 2 0 capabilities e Hi Speed and
21. it is possible that the analog level comparator will have already tripped i e to have tripped before the sweep was enabled If this is the case the circuit will wait for the comparator to change state However since the comparator has already changed state the circuit will not see the transition Solution 1 Set the analog level trigger to the desired threshold 2 Apply an analog input signal that is more than 2 5 of the full scale range away from the desired threshold This ensures that the comparator is in the proper state at the beginning of the acquisition 3 Bring the analog input signal toward the desired threshold When the input signal is at the threshold some tolerance the sweep will be triggered 4 Before re arming the trigger again move the analog input signal to a level that is more than 2 5 of the full scale range away from the desired threshold Example o an engineer is using the 2V full scale range gain 5 o he desires to trigger at 1V on the rising edge o he sets the analog input voltage to an initial start value which is less than 0 9V 1V 2V 2 2 5 DaqBoard 3000USB Series User s Manual 988093 Device Overviews 1 11 Digital Triggering A separate digital trigger input line is provided allowing TTL level triggering with latencies guaranteed to be less than 1 us Both the logic levels 1 or 0 as well as the rising or falling edge can be programmed for the discrete digital trigge
22. ome am can 510 664 0 66 510 510 510 510 Note Noro 2 yia 510 Nowe 3 510 An Example of Customer Installed 470 0 0033 102666 102 67 Capacitors and Filters for RC Networks In this example Channels 0 and 8 are shown as Single Ended Channel 1 is Differential i e using 1H and 1L channel High and Low The following three notes pertain to the above figure Note 1 The 3 horizontal capacitors as oriented in the illustration are optional filter capacitors Note 2 The vertical capacitor as oriented in the illustration is an optional isolation capacitor used for the reduction of Differential noise Such capacitor placement is not used in Single Ended applications Note 3 If installing filter resistors carefully drill out the indicated centers with a 1 16 inch drill bit Otherwise the resistor will be short circuited Prior to installing RC components review the previous Warning and Caution statements then read over the following information regarding resistors and capacitors 886994 Appendix A Do not use RC filters in conjunction with additional DBK expansion accessories Prior to installing a resistor to the filter network you must drill a 1 16 hole through the center pinhole beneath the board s silkscreen resistor symbol as indicated in the preceding figure Failure to do so will short circuit the resistor Do not drill holes on the board for channels unless those channels are to receive a filter network
23. routed out through the upper slot of the front panel 4 The PDQ30 analog input expansion module can be connected to a 3000 Series board s HDMI connector It does not apply to DaqBoard 500 Series or 1000 Series boards DBK215 pg A 4 886994 Appendix A Example 2 System with a DaqBoard 3000USB Series Board te Thermocouple Wires Connected to TB S000USB series Board ma CA 179 x USB Cable CA G56 Cable Jha TR 2 Power Supply Optional DBK215 Option In this example a DBK215 BNC Module is connected to the 68 pin SCSI connector of a 3000USB Series board via a CA GS6 shielded cable However the use of other cables is possible as noted below Four thermocouples are connected at the board s TB7 Terminal Block This means that 8 analog channels to obtain 4 differential TC channels are required see following figure Redundant connections must be avoided A TR 2 power supply is being used and is connected to the board s external power connector et WARNING STANDOFF Location Ref Before connecting TC wires ensure that the associated analog channels are not in use Failure to do so could possibly cause equipment damage and or personal injury AGND ACHO The TB7 terminal block can be used to connect up to 4 thermocouples The ACHE first TC channel makes use of Analog Channel 0 for its positive lead and ACHI Analog Channel 8 for its negative lead The second TC channel uses oct I analog C
24. see preceding statement Resistors should be 1 4 watt film type with up to 5 tolerance Do not use wire wound resistor types A resistor value of 510 Q is recommended Do not exceed 510 Q Capacitors used are to be of the film dielectric type e g polycarbonate or NPO ceramic above 0 001 uF RECOMMENDED For reduction of both Common Mode Noise and Differential Mode Noise use one capacitor between Channel High and AGND and use a second capacitor between Channel Low and AGND For reduction of Differential Noise when no reduction of Common Mode Noise is needed position a capacitor across the respective Channel High and Channel Low When in Differential Mode using capacitors between Channel High Channel Low and AGND may cause a slight degradation of wideband Common Mode rejection When making a RC filter network always install a wire jumper between the relevant FILT CAP LO and AGND FILT CAP LO terminals are located on TB9 and TB10 Appendix A 886994 DBK215 A 13 Specifications for DBK215 Operating Environment Temperature 30 C to 70 C Relative Humidity 95 RH non condensing Connectors P5 68 Pin SCSI Screw Terminals 14 banks of 10 connector blocks Wire Size 12 TO 28 AWG Dimensions 285 mm W x 220 mm Dx 45mmH 11 x 8 5 x 2 7 Weight 1 36 kg 3 Ibs Cables and Accessories Item Description Part Number Rack Mount Kit p n RackDBK4 68 conductor expansion cables mate with P5
25. 0 to 4 294 967 295 ticks 5 14 Counter Input Modes 887794 DaqBoard 3000USB Series User s Manual Encoder Mode TIP When using a counter for a trigger source it is a good idea to use a pre trigger with a value of at least 1 The reason is that all counters start at zero with the initial scan and there will be no valid reference in regard to rising or falling edge Setting a pre trigger to 1 or more ensures that a valid reference value is present and that the first trigger will be legitimate Introduction Rotary shaft encoders are frequently used with CNC equipment metal working machines packaging equipment elevators valve control systems and in a multitude of other applications in which rotary shafts are involved The encoder mode allows the 3000USB Series board to make use of data from optical incremental quadrature encoders When in the encoder mode the board accepts single ended inputs When reading phase A phase B and index Z signals the 3000USB Series board provides positioning direction and velocity data N e The 3000USB Series board can only receive input from up to two encoders The 3000USB Series board supports quadrature encoders with a 16 bit Counter Low or a 32 bit Counter High counter 20 MHz frequency and x1 x2 and x4 count modes With only phase A and phase B signals 2 channels are supported with phase A phase B and index Z signals 1 channel is supported Quadrature encoders generally have 3
26. 887794 Counter Input Modes 5 1 Trigger After Stable Mode In the Trigger After Stable mode the output of the debounce module will not change state until a period of stability has been achieved This means that the input has an edge and then must be stable for a period of time equal to the debounce time Input Output TI T2 T3 T4 TS Debounce Module Trigger After Stable Mode The following time periods T1 through T5 pertain to the above drawing In Trigger After Stable mode the input signal to the debounce module is required to have a period of stability after an incoming edge in order for that edge to be accepted passed through to the counter module The debounce time for this example is equal to T2 and T5 T1 In the example above the input signal goes high at the beginning of time period T1 but never stays high for a period of time equal to the debounce time setting equal to T2 for this example T2 At the end of time period T2 the input signal has transitioned high and stayed there for the required amount of time therefore the output transitions high If the Input signal never stabilized in the high state long enough no transition would have appeared on the output and the entire disturbance on the input would have been rejected T3 During time period T3 the input signal remained steady No change in output is seen T4 During time period T4 the input signal has more disturbances and does not stabiliz
27. B of the user s manual includes additional information As in all scenarios a CA 179 x USB cable is used to connect the 3000USB Series board to a USB2 0 port on the host PC Any of the following 68 conductor expansion cables can be used to connect the TB 100 option the SCSI connector CA G55 3 feet ribbon cable CA G56 3 feet shielded expansion cable CA G56 6 6 feet shielded expansion cable DaqBoard 3000USB Series Installation Guide 936993 IG 7 Scenario 3 Using a TB 101 Terminal Board Option Thermocouple Wires Connected to TB WN TB 101 Mounted to Wa Sl DaqBoard 3000USB ee E i ii TB 101 In this setup a TB 101 terminal board is plugged directly into the 40 pin headers J5 J6 J7 and J8 of the main board No cables are used in making this connection Stand offs are used to keep the boards from touching instructions are provided on the following page In this example 4 thermocouples are connected at TB7 on the 3000USB board This means that 8 analog channels to obtain 4 differential TC channels are required see following figure Redundant connections must be avoided STANDOFF Location Ref WARNING AGND Before connecting TC wires ensure that the associated analog ACHO channels are not in use Failure to do so could possibly cause TI a equipment damage and or personal injury ACH9 poe 6 The TB7 terminal block on the DaqBoard 3000USB can be used to connect ACH3
28. Common Analog input Channel 13 Analog input Channel 6 Analog Common Analog input Channel 15 Analog Output 0 DACO Analog Output 1 DAC1 SELFCAL Vcc 5 VDC Digital I O line AO Digital I O line A2 Digital I O line A4 Digital I O line A6 Note 1 Note 1 pa PORTA PORT B PORT C Ni Ni ri Trigger Input ooo U u 6 Counter Input ROS Counter inpute a Timer Output 3 a b Pacer Clock Input Output 2 DAG Pacer Clock yo M Note 1 DaqBoard 3001USB and 3031USB each include DACO DAC1 DAC2 and DAC3 DaqBoard 3005USB and 3035USB have no DACs IG 12 936993 Analog input Channel 0 67 Analog Common Analog input Channel 9 Analog input Channel 2 4 Analog Common Analog input Channel 11 Low Level Sense Common nalog input Channel 12 nalog input Channel 5 nalog Common nalog input Channel 14 7 Analog input Channel 7 Analog Output 3 DAC3 Note 1 Hi Analog Output 2 DAC2 Note 1 Digital Common Digital Common Digital I O line Al Digital I O line A3 51 PigitalVOlineA PORTA 50 Digital I O line A5 49 Digital I O line A7 48 Digital I O line B1 Digital I O line B3 PORT B 46 Digital I O line B5 45 Digital I O line B7 EE Digital I O line C1 43 Digital I O line C3 PORT C 42 Digital I O line C5 41 Digital I O line C7 140 Digital Common 39 Counter Input CTR1 38 Counter Input CTR3 Timer Output 1 36 Digital Common 35 Digital Common K 8
29. Connections amp Pinouts 2 5 TB 100 Terminal Connector Option The TB 100 Terminal Connector option can be used to connect all signal I O lines that are associated with a DaqBoard 3000USB Series device TB 100 connects to the DaqBoard s 68 pin SCSI connector via a 68 conductor cable p n CA G55 CA G56 or CA G56 6 TB 100 Pinout The Pin column refers to the pin no on the 68 Pin SCSI Connector Screw Terminals for TB2 Side 5V Vcc 5 VDC ND O ACHO ACH8 AGND ACH1 ACH9 AGND ACH2 ACH10 AGND ACH3 ACH11 AGND ACH4 ACH12 AGND ACH5 ACH13 AGND ACH6 ACH14 AGND ACH7 ACH15 XDAC3 SGND POSREF XDAC2 NEGREF AGND XDACO AGND XDAC1 AGND XAPCR GND Note 1 Q Digital Common Digital I O Line AO Digital I O Line Al Digital I O Line A2 Digital I O Line A3 Digital I O Line A4 Digital I O Line A5 Digital I O Line A6 Digital I O Line A7 Digital I O Line BO Digital I O Line B1 Digital I O Line B2 Digital I O Line B3 Digital I O Line B4 Digital I O Line B5 Digital I O Line B6 Digital I O Line B7 Digital I O Line CO Digital I O Line C1 Digital I O Line C2 Digital I O Line C3 Digital I O Line C4 Digital I O Line C5 Digital I O Line C6 Digital I O Line C7 gt O gt gt No ie UI N UJ 3 4 gt gt U1 bE u O oO amp gt 6 7 U Ww gt N amp KR rR me gt NINI N 0 On D D O O O O _ N N Oo ojo U1 D UJ N Co
30. DBK215 module includes BNC Access to 16 inputs or outputs on front panel on board screw terminal blocks on board socket locations for custom RC Filter networks 68 pin SCSI connector on rear panel O O o The top cover plate must be removed to access the terminal blocks and the RC filter network section of the board DBK215 s SCSI connector P5 connects to a second 68 pin SCSI connector on the board 1 e DagBoard 500 1000 3000 or 3000USB Series Connection is made via a CA G55 CA G56 or CA G56 6 cable Cable descriptions are provided on page A 2 The DBK215 provides BNC and screw terminal access to all analog and digital I O from the host data acquisition device Related to the screw terminals is a front panel slot for routing all I O wiring Reference Note DBK215 is intended for DaqBoard 500 1000 3000 and 3000USB Series applications Refer to the associated documentation as needed For information concerning similar16 channel BNC connectivity interface boards designed for use with other products refer to the DBK213 and DBK214 sections of the DBK Options manual p n 457 0905 Appendix A 886994 DBK215 A 1 DBK215 pg A 2 8 BNC Channels Pre Configured for Analog Input TB9 T Gl a BNC M_J sil CHO _Y oir e 2 TB10 S Bnc D __VWigiJse al lai TB9 supports BNCO thru BNC3 TB10 supports BNC4 thru BNCT 8 BNC Channels User Configured via Jumper Wires BNC CHA BNC
31. If a scan contains only digital channels then the minimum scan period is 250 ns 1 Internal programmable Analog Channels from 1 us to 19 hours in 20 83 ns steps Digital Channels and Counters from 250 ns to 19 hours in 20 83 ns steps 2 External TTL level input Analog Channels down to 1 us minimum Digital Channels and Counters down to 250 ns minimum Programmable Parameters per Scan Channel random order gain Depth 512 locations On board Channel to Channel Scan Rate Analog 1 MHz maximum Digital 4 MHz if no analog channels are enabled 1 MHz with analog channels enabled External Acquisition Scan Clock Input Maximum rate 1 0 MHz Clock Signal Range Logical zero OV to 0 8V Logical one 2 4V to 5 0V Minimum Pulse Width 50 ns high 50 ns low Note Specifications are subject to change without notice 918593 Specifications 7 5 Triggering Trigger Sources 7 individually selectable for starting and stopping an acquisition Stop acquisition can occur on a different channel than start acquisition stop acquisition can be triggered via modes 2 4 5 or 6 described below 1 Single Channel Analog Hardware Trigger Any analog input channel can be software programmed as the analog trigger channel including any of the analog expansion channels Input Signal Range 10 to 10V max Trigger Level Programmable 12 bit resolution Hysteresis Programmable 12 bit resolution Latency 350 ns typical 1 3 us max Accuracy 0 5 of read
32. Quadrature Encoder Inputs o 1channel with A phase B phase and Z index o 2channel with A phase and B phase o x1 x2 and x4 count modes o Single ended TTL 7 8 DaqBoard 3000USB Series Specifications 918593 Note Specifications are subject to change without notice Frequency Pulse Generators 3 3V Timer Generator SCSI 68 pin 100 2 One Timer Channel Typical Channels 2 x 16 bit Output Waveform Square wave Output Rate 1 MHz base rate divided by 1 to 65535 programmable High Level Output Voltage 2 0V minimum 1 0 mA 2 9V minimum 400 pA Low Level Output Voltage 0 4V maximum 400 pA Software DaqViewXL Plus DaqView add on for seamless execution with Microsoft Excel s tool palette DaqView Pro DagView add on includes all of the features of DaqViewXL Plus plus frequency domain analysis DASYLab Icon based data acquisition graphics control and analysis software Note Specifications are subject to change without notice 918593 Specifications 7 9 Accessories and Cables Termination Board TB 100 Termination board with screw terminals for access to DaqBoard 3000USB Series I O The TB 100 terminal board connects to the DaqBoard 3000USB s 68 pin SCSI connector via a CA G55 CA 56 or CA 56 6 cable see chapter 2 for details Termination Board TB 101 Termination board with screw terminals for access to DaqBoard 3000USB Series I O mounts directly to the 3000USB Series board provid
33. SCSI 68 pin connectors 3 ft non shielded CA G55 3 ft shielded CA G56 6 ft shielded CA G56 6 Accessory Wire Kit 1139 0800 Includes jumper wires and a screwdriver Specifications are subject to change without notice DBK215 pg A 14 886994 Appendix A Appendix B Signal Modes and System Noise Signal Modes B 1 Connecting Thermocouples to Screw Terminal Blocks B 2 Shielding B 3 TC Common Mode B 3 Cold Junction Compensation Techniques B 4 System Noise B 5 Averaging B 5 Analog Filtering B 5 Input and Source Impedance B 5 Crosstalk B 6 Oversampling and Line Cycle Rejection B 6 Signal Modes Appendix B DaqBoard 3000USB units can make use of single ended mode or differential modes Mode selection is made in software Single ended mode refers to a mode or circuit set up in which a voltage is measured between 1 signal line and common ground voltage Analog Common or Acom The measured voltage may be shared with other channels The advantage of a single ended non differential mode over differential mode is that it provides for a higher channel count for example 16 channels instead of 8 In DaqBoard 3000USB applications thermocouples should never be connected single ended Doing so can result in noise and false readings Differential mode refers to a mode or circuit set up in which a voltage is measured between two signal lines
34. SE CH5HIIN DIFF is BNC5 CH 13 IN SE CH 5 LO IN DIFF BNC6 6H 6 25 CH6IN SE CH 6 HI IN DIFF i Oo ore tis os BNC6 CH 14 IN SE CH 6 LO IN DIFF dali A header located beneath TB14 and BNC7 CH 7 IN SE CH 7 HI IN DIFF J7 TB16 is used to set the BNC BNC7 CH 15 IN SE CH7LO IN DIFF channels to Single Ended or to AGND Analog Ground N A Differential Simply place channel s 2 pin jumper in the appropriate IE e NA position SE or DIFF Correlation to Custom BNC Terminations BNC A through BNC H Pertains to Terminal Blocks TB15 and TB16 for Custom Configuration on a per channel basis BNC channels A through D are configured on a per channel basis by the user TB15 is a routing terminal block used to connect BNCs A thru D to the desired signals which are selected via a second DBK215 terminal block For example a user could run a wire from BNCA to TB4 screw terminal BNCC TMRO and BNCA to TB4 DGND to create a BNC timer connection Accessory Wire Kit p n 1139 0800 includes jumper wires and a screwdriver AGND Analog Ground AGND Analog Ground T815 BNCA BNCA az The following SCSI Pins connect to Analog Common 24 27 29 32 55 56 59 64 and 67 BNC channels E through H are configured on a per channel basis by the user TB16 is a routing terminal block used to connect BNCs E thru H to the desired signals which are selected via a second DBK215
35. Temperature Measuerment Error vs PDaq3000 Ambient Temperature with Thermocouple at 0 C Excludes Thermocouple Error AutoZero Enabled Si e O o m lt gt h N Q a gt H be 2 O Sai Som fe i LU vcd c D i 5 m O i 5 ved Som D Q z n 10 20 30 Ambient Temperature C 7 2 DaqBoard 3000USB Series Specifications 918593 Note Specifications are subject to change without notice Worst Case Temperature Measuerment Error vs PDaq3000 Ambient Temperature with Thermocouple at 0 C Excludes Thermocouple Error AutoZero Disabled R S Temperature Measurement Error C for Types T J K E 10 20 30 Ambient Temperature C Voltage Measurement Noise vs Oversampling include noise due to quantizing of returned data Noise RMS Counts Typical 100 1000 100000 Oversampling Rate Note Specifications are subject to change without notice 918593 Specifications 7 3 _ a n pa oe n n AANIK JO 10V_ to 10V 0 031 0 008 0 031 0 009 0 031 0 010 0 031 0 02
36. The measured differential voltage is used for a single channel An advantage of using differential inputs is that they reduce signal errors and the induction of noise resulting from ground current The following illustration is an example of how noise is reduced or canceled out when using the differential mode In the schematic voltage signal S is subtracted from signal S4 resulting in the output signal shown Noise spikes with the same polarity phase and magnitude in each input signal cancel out resulting in a clean differential signal S1 S2 In the schematic signals S and S are shown in phase however even if these signals were out of phase the noise in each indicated by jagged lines would still have the same magnitude phase and polarity For that reason they would still cancel out Noise Reduction in Differential Mode Differential signal hookups do not provide isolation or any kind of circuit protection Resolution An analog to digital converter ADC converts an analog voltage to a digital number The digital number represents the input voltage in discrete steps with finite resolution ADC resolution is determined by the number of bits that represent the digital number An n bit ADC has a resolution of 1 part in 2 Thus 12 bit and 16 bit resolutions are as follows e 12 bit resolution 1 part in 4096 2 corresponding to 2 44 mV in a 10 V range e 16 bit resolution 1 part in 65 536 2 9 corresponding
37. and applied to each encoder channel Refer to the Debounce Module section on page 1 for additional information regarding debounce times Relative position and velocity can be obtained from the encoder However during an acquisition data that is relative to the Z position cannot be obtained until the encoder locates the Z reference During an acquisition data that is relative to the Z position cannot be obtained until the encoder locates the Z reference Note that the number of Z reference crossings can be tabulated If the encoder was turning in only one direction then the Z reference crossings will equal the number of complete revolutions This means that the data streaming to the PC will be relative position period I velocity and revolutions 5 18 Counter Input Modes 887794 DaqBoard 3000USB Series User s Manual A typical acquisition might take 6 readings off of the 3000USB Series board module as illustrated below The user determines the scan rate and the number of scans to take TODOCORO COCCO OOO Scan Period DaqBoard 3000USB Series board Acquisition of Six Readings per Scan Note Digital channels do not take up analog channel scan time In general the output of each channel s counter is latched at the beginning of each scan period called the start of scan Every time the 3000USB Series board receives a start of scan signal the counter values are latched and are available to the 3000USB Series board The 3
38. brings up DaqView s Main Window This window is discussed briefly in the following text and in more detail in the Dag View Manual PDF included on the installation CD 936993 DaqBoard 3000USB Series Installation Guide 4 Configure the System The Channel Setup window first tab on lower portion of main window displays the analog and scanned digital input channels and allows you to configure them Acquisition Setup Data Destination Analog amp Scanned Digital Inputs S es Pe 144 E Reading Bipolar Bipolar Bipolar Bipolar Bipolar Bipolar Bipolar Bipolar Bipolar Bipolar Bipolar Bipolar Bipolar al Bipolar ne Bipolar E Bipolar Digital 8 nia Counts Digital 8 nia Counts Digital 8 nia Counts CT16 nia Courts CT16 nia Courts CT16 nia Counts CT16 nia Counts SIS A a a a a ee Channel Setup Tab Selected Selecting the second tab of the main window displays the Acquisition Setup window used to set triggering and configure the scan These settings will be used when an acquisition to disk is started Channel Setup Acquisition Setup Data Destination Pre Trigger Number of Pre trigger scans 0 Trigger Event Source Manual Trigger Stop Event Source Number of Scans Scan Count 5 000 Scan Configuration Clock Source Scan Hate Averaging Internal 10000 0 Scans Per i Enabled Second External Preferences Acquisition Tab Selected Note The
39. can cause personal injury or equipment damage Before setting up and using your equipment you should read all documentation that covers your system Pay special attention to Warnings and Cautions During software installation Adobe PDF versions of user manuals will automatically install onto your hard drive as a part of product support The default location is in the Programs group which can be accessed from the Windows Desktop Initial navigation is as follows Start Desktop Start pull down menu gt Programs IOtech DaqX Software You can also access the PDF documents directly from the data acquisition CD by using the lt View PDFs gt button located on the opening screen Refer to the PDF documentation for details regarding both hardware and software A copy of the Adobe Acrobat Reader is included on your CD The Reader provides a means of reading and printing the PDF documents Note that hardcopy versions of the manuals can be ordered from the factory Table of Contents DaqBoard 3000USB Series Installation Guide p n 1033 0941 1 Device Overviews Block Diagrams 1 2 Connections 1 4 Product Features 1 5 Software 1 17 2 Connections and Pinouts 68 Pin SCSI Connector J3 2 2 J5 and J6 40 Pin Headers for Analog Channels 2 3 TB7 4 Channel Thermocouple Terminal Block 2 3 J7 and J8 40 Pin Headers for Digital Ports Counters Timers DACS Triggers P
40. channels whether active or not 14 Hide INACTIVE Condenses the Analog amp Scanned Digital Inputs spreadsheet to hide channels that are Channels inactive 5 Turn All Visible Turns all visible channels ON Hidden channels will remain off Channels ON 7 16 Turn All Channels Turns all the channels OFF OFF 1 Channel Reading A toggle button that enables or disables the Channel Reading column of the Analog and Scanned Digital Input spreadsheet Some windows require the Channel Reading column to be disabled when changing channels or other parameters This command is also available from the Data pull down menu Click one of the toolbar s display icon buttons to see your data in the form of a scope or meter display Button 1 brings up the scope window which allows you to set up a scope and chart displays buttons 2 3 and 4 are for bar graph meters analog meters and digital meters respectively IG 18 936993 DaqBoard 3000USB Series Installation Guide Customer Assistance To report problems and receive support call your service representative Before calling for assistance please refer to the portions of the DagBoard 3000USB User s Manual that are relevant to your situation Reference Notes o Refer to the DagView PDF for information regarding that application o Refer to the DaqgBoard 3000USB Series Users Manual PDF for hardware related information including pinouts and block diagrams
41. connects to the channel s Low L connector b the second color coded wire connects to the channel s High H connector STANDOFF Location Ref AGND ACHO ACH8 ACH1 CH1HI ACH9 CH1LO ACH2 ACH10 ACH3 CH3HI ACH11 CH3 LO Thermocouple Single Ended and Differential Connections to TB7 The figure shows voltage Single ended connections for V1 Channel 0 and V2 Channel 8 it also shows V3 and V4 each resulting from a different thermocouple In the case of V3 and V4 Differential mode 1s being used The HI line from the thermocouple is shown connected to Channel 1 HI and the LO negative side is connected to Channel 1 LO Notice that Channel 1 LO is the same screw terminal connection that would be used for CH 9 Single Ended V4 is connected in a similar manner see figure ia a Vey In DaqBoard 3000USB applications thermocouples should only be connected in differential mode Connecting thermocouples in single ended mode can cause noise and false readings Appendix B of the user s manual includes additional information 3 Start DaqView IG 16 From Windows open DagView by double clicking on its icon or use the Windows Desktop Start menu to access the program You will find DagView listed in the Program group Use the desktop Start Menu Programs to access the group Once the program is executed software automatically identifies your Personal Dag 3000 Series device and
42. counter DaqBoard 3000USB Series User s Manual 887794 Counter Input Modes 5 7 Period Mode 5 8 Counter Input Modes This mode allows for period measurement of the channel input The measurement period is the time from edge to edge either both rising or both falling Period data is latched as it becomes available and the data is logged by the 3000USB Series board at the scan rate Therefore if the scan period is much faster than the input waveform there will be a great deal of repetition in the period values This repetition is due to the fact that updates take place only when another full period becomes available ae Low Word Tick size Increment _ oe 1 Channel Input To PC Post Debounce Buffer Clear OPTE Mapped Channel 4 Channel Inputs Post Debounce OPT 1 0 Period Counter f 4 Asynchronous 1 10 100 1000 Read Strobes i Period Mode There is one asynchronous read strobe for each of the four counter channels Note 1 Tick sizes are 20 83ns 208 3ns 2083ns and 20833ns derived from the 48 MHz system clock An example One channel s acquired data might be 0 0 0 0 80 80 80 80 79 79 79 79 81 81 81 81 This data represents the number of ticksize intervals counted during the period measurement The first value s returned will be zero since the counters are cleared at the beginning of the acquisition The data comes in sets of four since the scan period is about one fourth as long a
43. digital input sampling while the 1IMHz analog sampling bandwidth is aggregated across many analog input channels The scan period can be made much longer than 6 us up to 19 hours The maximum scan frequency is one divided by 6us or 166 666 Hz Note that digital input channel sampling is not done during the dead time of the scan period where no analog sampling is being done either Start of Scan Start of Scan Start of Scan Start of Scan co p p p p p p o l2 15 1122 25 al fe Scan Period If the 3 counter channels are all returning 32 bit values and the digital input channel is returning a 16 bit value then 18 samples are being returned to the PC every scan period each sample being 16 bits 32 bit counter channels are divided into two 16 bit samples one for the low word and the other for the high word If the maximum scan frequency is 166 666 Hz then the data bandwidth streaming into the PC is 3 MSamples per second Some slower PCs may have a problem with data bandwidths greater than 6 MSamples per second All DaqBoard 3000USB Series devices have an onboard 1MSample buffer for acquired data Analog Input amp Channel Expansion Each DaqBoard 3000USB Series board has a 16 bit 1 MHz A D coupled with 16 single ended or 8 differential analog inputs Seven software programmable ranges provide inputs from 10V to 100 mV full scale Each channel can be software configured for a different range as well as for single ended or
44. guidelines in an appropriate ESD controlled area Such guidelines include the use of properly grounded mats and wrist straps ESD bags and cartons and related procedures Peppe pp EERE IOLGI TAL POSTS ALA 0 80700 0 Bhs Ba hh i si ih lat dn die BEND ACHI LACH2 MHI a ALHS TTL TRIGGER INPUT TILTRG ACHE LACH LOW LEVEL SENSE GRAD SEND ACHO ACHS ACHIO LACHLI ANALOG INPUTS SINGLE r ACHO ACHI ACH2 ACKI Aloe ALMS NOMS ACh ACKI6 ACHI ACE ACIS SINGLE i ACHO ACHS ACHO ACHILL ACHI ACHI J ACHI 4 ACHOS ACH24 ACH ACH26 ACH27 10 uzazee ssy COPYRIGHT 2006 ALL WIGHT RESERVED DaqBoard 3000USB Series User s Manual ACHIZ ADO La re CHI 3 LACHIS ACHIS PLHIS ACHI COCE ACHIS AQL ACKH22 ACK23 ACH32 ACH33 ANCHA ACGS PACNZ9 MENSA ARCHI ACH40 ACH41 ficH42 farti ACH70 gt ADE Fsa PCMZI ACHES PACHZ3 ACH24 ACH25 PEH26 ACH27 Maad ALES TA ACKIO ALH39 ACHE ACMI9 ACHE ACHSI PENAS ACIS ACHA ACHES ACH Ferg ACHES F_HZB ACH29 Aenso Standoff Locations 5 in Total ACMB2 ACH5I Acri F 5 ASS DES ee CAO I IND NE or Em NEI ILDN DCS eso NEI N Ser I 3 pa SS Se RNC Ina Ml t How to Mount the TB 101 Steps A through D refer to the following illustration A After taking ESD precauti
45. outputs A B and Z The A and B signals are pulse trains driven by an optical sensor inside the encoder As the encoder shaft rotates a laminated optical shield rotates inside the encoder The shield has three concentric circular patterns of alternating opaque and transparent windows through which an LED will shine There is one LED for each of the concentric circular patterns and likewise one phototransistor One phototransistor produces the A signal another phototransistor produces the B signal and the last phototransistor produces the Z signal The concentric pattern for A has 512 window pairs or 1024 4096 etc The concentric pattern for B has the same number of window pairs as A except that the entire pattern is rotated by 1 4 of a window pair Thus the B signal will always be 90 degrees out of phase from the A signal The A and B signals will pulse 512 times or 1024 4096 etc per complete rotation of the encoder The concentric pattern for the Z signal has only one transparent window and therefore pulses only once per complete rotation Representative signals are shown in the following figure DaqBoard 3000USB Series User s Manual 887794 Counter Input Modes 5 15 Representation of Quadrature Encoder Outputs A B and Z As the encoder rotates the A or B signal 1s indicative of the distance the encoder has traveled The frequency of A or B indicates the velocity of rotation of the encoder If the Z signal is used to zero a
46. shows analog input Channel 3 with a setpoint which defines two 16 bit limits Limit A High and Limit B Low These are being applied in the hysteresis mode and DAC Channel 0 will be accordingly In this example Channel 3 s analog input voltage is being used to update DACO as follows o When outside the window low below Limit B DACO is updated with 3 0V This update will remain in effect until the analog input voltage goes above Limit A o When outside the window high above Limit A DACO is updated with 7 0V This update will remain in effect until the analog input signal falls below Limit B At that time we are again outside the limit low and the update process repeats itself Hysteresis mode can also be done with P2C digital output port or a timer output instead of a DAC Ch 3 Analog Input Voltage Limit A Limit B Detection DACO Channel 3 in Hysterisis Mode DaqBoard 3000 Series User s Manual 887794 Setpoint Configuration for Output Control 6 9 Using Multiple Inputs to Control One DAC Output Update Mode Rising Edge for each of 2 channels Criteria Used Inside Window for each of 2 channels The figure below shows how multiple inputs can update one output In the following figure the DAC2 analog output is being updated Analog input Channel 3 has an inside the window setpoint applied Whenever Channel 3 s input goes inside the programmed window DAC2 will be updated with 3 0V Analog input Channel 7 also
47. software including miscellaneous support files drivers and sample programs may only be used on one installation You may make archival backup copies CE Notice cE Many IOtech products carry the CE marker indicating they comply with the safety and emissions standards of the European Community As applicable we ship these products with a Declaration of Conformity stating which specifications and operating conditions apply Warnings Cautions Notes and Tips Refer all service to qualified personnel This caution symbol warns of possible personal injury or equipment damage under noted conditions Follow all safety standards of professional practice and the recommendations in this manual Using this equipment in ways other than described in this manual can present serious safety hazards or cause equipment damage This warning symbol is used in this manual or on the equipment to warn of possible injury or death from electrical shock under noted conditions This ESD caution symbol urges proper handling of equipment or components sensitive to damage from electrostatic discharge Proper handling guidelines include the use of grounded anti static mats and wrist straps ESD protective bags and cartons and related procedures This symbol indicates the message is important but is not of a Warning or Caution category These notes can be of great benefit to the user and should be read In this manual the book symbol always precedes the w
48. the same instant and holds these values until all are sequentially converted to digital values The single ended mode measures a voltage between a signal line and a common reference that may be shared with other channels Also see differential mode An event to start a scan or mark an instant during an acquisition The event can be defined in various ways e g a TTL signal a specified voltage level in a monitored channel a button manually or mechanically engaged a software command etc Some applications may use pre and post triggers to gather data around an instant or based on signal counts Transistor Transistor Logic TTL is a circuit in which a multiple emitter transistor has replaced the multiple diode cluster of the diode transistor logic circuit typically used to communicate logic signals at 5 V A range of analog signals that is always zero or positive e g 0 to 10 V Evaluating a signal in the right range unipolar or bipolar allows greater resolution by using the full range of the corresponding digital value See bipolar 887194 Glossary
49. to 0 153 mV in a 10 V range 886994 Signal Modes and System Noise B 1 Connecting Thermocouples to Screw Terminal Blocks DagBoard 3000USB Series boards can measure voltage channels in Single Ended mode or channels of temperature in differential mode You could instead mix signal types for example have thermocouple and voltage channels connected In DaqBoard 3000USB Series applications thermocouples must be connected differentially Failure to do so will result in false readings DaqBoard 3000USB Series devices do not have open thermocouple detection STANDOFF Local nn R ai Differential connection is made as follows a the red TC wire connects to the channel s Low L connector b the other color TC wire connects to the channel s High H connector AGND ACHO AGHS ACHI CHIHI ACHS CH1LO ACHZ ACHIO ACH3 CH3HI ACHT CH3LO Thetmocouple Single Ended and Differential Connections to TB7 The figure shows voltage Single ended connections for V1 Channel 0 and V2 Channel 8 it also shows V3 and V4 each resulting from a different thermocouple In the case of V3 and V4 Differential mode is being used The HI line from the thermocouple is shown connected to Channel 1 HI and the LO negative side is connected to Channel 1 LO Notice that Channel 1 LO is the same screw terminal connection that would be used for CH 9 Single Ended V4 is connected in a similar manner see figure Ther
50. to Counter Modes The following terms and definitions are provided as an aid to understanding counter modes Gating Any counter can be gated by the mapped channel When the mapped channel is high the counter will be allowed to count when the mapped channel is low the counter will not count but hold its value Mapped Channel A mapped channel is one of 4 signals that can get multiplexed into a channel s counter module The mapped channel can participate with the channel s input signal by gating the counter clearing the counter etc The 4 possible choices for the mapped channel are the 4 input signals post debounce Start of Scan The start of scan is a signal that is internal to the 3000USB Series board It signals the start of a scan group and therefore pulses once every scan period It can be used to clear the counters and latch the counter value into the acquisition stream Terminal Count This signal is generated by the counter value There are only two possible values for the terminal count 65 535 for a 16 bit counter Counter Low and 4 294 967 295 for a 32 bit counter Counter High The terminal count can be used to stop the counter from rolling over to zero Ticksize The ticksize is a fundamental unit of time and has four possible settings 20 83ns 208 3ns 2083ns 20833ns For measurements that require a timebase reference like period or pulsewidth the ticksize is the basic unit of time Ticksize is derived from the perio
51. top Power LED bottom Locations of Signal Connectors and LEDs LEDs DaqBoard 3000USB Series boards have 2 LEDs located just right of the USB2 connector see figure The LEDs function as follows Active LED Top LED This LED is on whenever active USB communication is taking place between the DaqBoard and the host PC Note that the Active LED will be on solid during a data acquisition Power LED Bottom LED The Power LED blinks during device detection and initialization then remains on solid as long as the module has power If there is insufficient power the LED will go off and a TR 2 power adapter will be needed Note that when the board is first powered there will likely be a momentary delay before the Power LED begins to blink or come on solid DaqBoard 3000USB Series Installation Guide 936993 IG 11 68 Pin SCSI Connecter WARNING BB Avoid redundant connections Ensure there is no signal conflict between SCSI pins and the associated header pin J5 J6 J7 and J8 Also ensure there is no conflict between TB7 thermocouple connections and the SCSI and or the 40 pin headers Failure to do so could possibly cause equipment damage and or personal injury Pin numbers refer to the 68 pin SCSI female connector located on the DaqBoard Analog input Channel 8 Analog input Channel 1 Analog Common Analog input Channel 10 Analog input Channel 3 Analog Common Analog input Channel 4 N NI Analog
52. transducer corresponds to the condition measured The degree to which an input signal is amplified or attenuated to allow greater accuracy and resolution can be expressed as xn or dB The arrangement or operation of a circuit so that signals from another circuit or device do not affect the isolated circuit In reference to Daq devices isolation usually refers to a separation of the direct link between the signal source and the analog to digital converter ADC Isolation is necessary when measuring high common mode voltage Some transducers produce a voltage in linear proportion to the condition measured Other transducers e g thermocouples have a nonlinear response To convert nonlinear signals into accurate readings requires software to calibrate several points in the range used and then interpolate values between these points A device that collects signals from several inputs and outputs them on a single channel For the purposes of calculating accuracy range is equal to the full dynamic input voltage For example the full scale range is 20V for the 10 to 10V range The value of a signal on a channel at an instant in time When triggered the ADC reads the channel and converts the sampled value into a 12 or 16 bit value A series of measurements across a pre selected sequence of channels A programmable device that manages channels and channel specific settings An operation that gathers samples from multiple channels at
53. use no time slot in the scanning sequencer For example one analog input can be scanned at the full 1 MHz A D rate along with digital and counter input channels The 1 MHz A D rate is unaffected by the additional digital and counter channels Input Scanning DaqBoard 3000USB Series devices have several scanning modes to address a wide variety of applications A 512 location scan buffer can be loaded by the user with any combination of analog input channels All analog input channels in the scan buffer are measured sequentially at 1 usec per channel The user can also specify that the sequence repeat immediately or repeat after a programmable delay from 0 to 19 hours with 20 83 nsec resolution For example in the fastest mode with a 0 delay a single analog channel can be scanned continuously at 1 Msamples s two analog channels can be scanned at 500K samples s each 16 analog input channels can be scanned at 62 5 Ksamples s The digital and counter inputs can be read in several modes First via software the digital inputs or counter inputs can be read asynchronously at anytime before during or after an analog input scan sequence This software mode is not deterministic as to exactly when a digital or counter input is read relative to an analog input channel In either of the two synchronous modes the digital inputs and or counter inputs are read with deterministic time correlation to the analog inputs In the once per scan mode all of the en
54. value then 13 samples are being returned to the PC every scan period each sample being 16 bits 32 bit counter channels are divided into two 16 bit samples one for the low word and the other for the high word If the maximum scan frequency is 166 666 Hz then the data bandwidth streaming into the PC is 2 167 MSamples per second Some slower PCs may have a problem with data bandwidths greater than 6 MSamples per second All DaqBoard 3000USB Series devices have an onboard 1MSample buffer for acquired data DaqBoard 3000USB Series User s Manual 988093 Device Overviews 1 9 Example 4 Sampling digital inputs for every analog sample in a scan group The scan is programmed pre acquisition and is made up of 6 analog channels Ch0 Ch2 Ch5 Ch11 Ch22 Ch25 and 4 digital channels 16 bits of digital input 3 counter inputs Each of the analog channels can have a different gain and each of the counter channels can be put into a different mode totalizing pulsewidth encoder etc The acquisition is triggered and the samples stream to the PC via USB2 Each analog channel requires one microsecond of scan time therefore the scan period can be no shorter than 6 us for this example All of the digital channels are sampled at the start of scan and do not require additional scanning bandwidth as long as there is at least one analog channel in the scan group The 16 bits of digital input are sampled for every analog sample in the scan group This allows up to 1MHz
55. 000USB Series board clears all counter channels at the beginning of the acquisition This means that the values returned during scan period 1 will always be zero The values returned during scan period 2 reflect what happened during scan period 1 The scan period defines the timing resolution for the 3000USB Series board If you need a higher timing resolution shorten the scan period DaqBoard 3000USB Series User s Manual 887794 Counter Input Modes 5 19 Wiring for 2 Encoders The following figure illustrates single ended connections for two encoders Differential connections are not applicable 5 VDC Pin 19 et GND Digital Common Pin 35 36 or 40 CTR2 Pin 4 A CTR3 Pin ns i m E Encoder i Encoder CTRO Pin 5 A CTR1 Pin Encoder 1 Encoder 2 Two Encoders Connected to pins on the SCSI Connector Connections can instead be made to the associated screw terminals of a connected TB 100 terminal connector option Connect two encoders to the 3000USB Series board as shown in the table below Each signal A B can be connected as a single ended connection with respect to the common digital ground GND Both encoders can draw their power from the 5V power output pin 19 on the 68 pin SCSI connector Connect each encoder s power input to 5V power Connect the return to digital common GND on the same connector Make sure that the current output spec is not violated The programming setup g
56. 27593 Connections amp Pinouts 2 11 Hardware Setups This section presents three examples of hardware setup Other scenarios are possible for example using a TB 100 and also using one CA 248 cable Users may also forgo the use of TB7 even if using thermocouples Also note that the optional TR 2 power supply can be used in any scenario The most important part of the setup is to avoid making redundant signal connections and to use approved ESD precautions Pinouts are presented earlier in this chapter WARNING Avoid redundant connections Ensure there is no signal conflict between SCSI pins and the associated header pin J5 J6 J7 and J8 Also ensure there is no conflict between TB7 thermocouple connections and the SCSI and or the 40 pin headers Failure to do so could possibly cause equipment damage and or personal injury WARNING Turn off power to all devices connected to the system before making connections Electrical shock or damage to equipment can result even under low voltage conditions The discharge of static electricity can damage some electronic components Semiconductor devices are especially susceptible to ESD damage You should always handle components carefully and you should never touch connector pins or circuit components unless you are following ESD guidelines in an appropriate ESD controlled area Such guidelines include the use of properly grounded mats and wrist straps ESD bags and cartons and relate
57. 35USB have no DACs 2 2 Connections amp Pinouts 927593 DaqBoard 3000USB Series User s Manual J5 and J6 40 Pin Headers for Analog Channels Note All channels are available for DaqBoard 3031USB and 3035USB Channels 16 through 63 are not available for DaqBoard 3001USB and 3005USB ml a La 40 This edge of the header is closest to B T a 4 oe and 40 are labeled on the board DB 3 7 3 pe 39 silkscreen leader Each 40 pin header can be terminated outto a DBI7 male connector via the CA 248 cable I CH 27 1 CH 19 CH 43 1 CH 59 CH 26 3 CH 18 CH 35 3 CH 51 Analog Com 5 Analog Com Analog Com 5 CH 58 CH3 Ay 7 CH 11 A CH 42 7 CH 50 CH 2 A 9 CH 10 Ar CH 34 9 CH 57 CH 17 11 CH 25 Analog Com 11 CH 49 CH 16 13 CH 24 CH 41 13 CH 56 CH 1 Av 15 CH 9 A CH 33 15 CH 48 CH 0 Ay 17 CH 8 AN CH 40 17 Analog Com Analog Com 19 Analog Com CH 32 19 CH 63 CH 23 21 CH 31 CH 47 21 CH 55 CH 22 23 CH 30 CH 39 23 Analog Com CH7 25 CH 15 CH 46 25 CH 62 CH 6 27 CH 14 CH 38 27 CH 54 Analog Com 29 CH 21 Analog Com 29 CH 61 CH 29 31 CH 20 CH 45 31 CH 53 CH 28 33 CH5 CH 37 33 CH 60 CH 13 35 CH 4 CH 44 35 CH 52 CH 12 37 Analog Com CH 36 37 Analog Com Analog Com 39 Analog Com Analog Com 39 Analog Com A For Analog Channels 0 1 2 3 8 9 10 and 11 Read the following WARNING which applies to their use as thermocouple channels TB7 4 Channel Thermocouple Terminal Block WARNING S
58. A 248 Each 40 pin header can be terminated outto a DBI7 DB 37 40 pin header male connector via the CA 248 cable X Not Connected 13VA X Analog Com XDAC2 XDAC3 Analog Com SGND Analog Com XDPCR X Aux Pwr X X Ma X X X SGND Signal Ground Low Level Sense Common XDPCR DAC Pacer Clock I O The DaqBoard 3000USB Series Users Manual p n 1136 0902 includes a pinout for the TB 100 screw terminal board connector option It also includes an appendix pertaining to the DBK215 16 BNC Connector Module A PDF version of the manual is included on the data acquisition CD and is also installed on your PC in the DaqView program group which can be accessed from your Windows Desktop Start Menu Default location 936993 DaqBoard 3000USB Series Installation Guide CA 248 40 Position Header to DB 37 Male Ribbon Cable 8 75 0 25 20 O 1 Red trace designates header connector pin 1 40 Position DB 37 Header Male CA 248 Pinout DB 37 Pins listed Sequentially 40 Position Header DaqBoard 3000USB Series Installation Guide 936993 40 Position Header Pin No 40 Position Header Connecting Thermocouple Wires In DaqBoard 3000USB applications thermocouples must be connected differentially Failure to do so will result in false readings Differential connection is made as follows a the red wire
59. AL COMMON GNO FCHIO ACH26 ANALOG COMMON AGND PCH Aag ACH PEND x PCHII Ace ACHIA Aci CHIS ACK 3 ACHIS ACHI PCHLE ACHIS ACMZO PEHI ANCHI nce AC H22 ACHIA ACHAS PEH22 ALHIS ACH ACH24 ACHE ACHES _M25 ACH43 PEH2Z6 ACEO ficHea ACH ACSI ACHES PCHZE ACH29 ACIS ACS 2 wo v lt IU gt E i A RESI NIDI CEI PISO MEI EXIT IN LI COPYRIGHT 2006 ALL WIGHT RESERVED Standoff Locations 5 in Total DaqBoard 3000USB Series Installation Guide 936993 How to Mount the TB 101 Steps A through D refer to the following illustration A After taking ESD precautions remove the Hex Nuts from the 5 existing standoffs B Thread the new ST 6 7 standoffs onto the existing standoffs Tighten snug by hand C Align the TB 101 with the new standoffs and position the board in place D Using the Hex Nuts removed in Step A secure the TB 101 to the new standoffs Tighten snug Over tightening will damage the board New ST 6 7 Standoff 1 of 5 TerminalBoard r si ced eo F Pg Original Hex Nut pi niga in ac enn ty See eee ie eet ee ee ee O Desa CARTER ERI a DagqBoard 3000USB nia series Board Original Standoff 1 of 5 IG 9 Scenario 4 Using a DBK215 3000USB series Board 4 CA 1 9 x USB Cable TR 2 CA G56 Cable Power Supply Optional DBK215 Option In this setup a DBK215 BNC Module is connect
60. An amplifier used primarily to match two different impedance points and isolate one stage from a succeeding stage in order to prevent an undesirable interaction between the two stages Also see Buffer In reference to Dag devices channel simply refers to a single input or output entity In a broader sense an input channel is a signal path between the transducer at the point of Measurement and the data acquisition system A channel can go through various stages buffers multiplexers or signal conditioning amplifiers and filters Input channels are periodically sampled for readings An output channel from a device can be digital or analog Outputs can vary in a programmed way in response to an input channel signal Common mode pertains to signals that are identical in amplitude and duration also can be used in reference to signal components Common mode voltage refers to a voltage magnitude referenced to a common point that is shared by two or more signals Example referenced to common Signal 1 is 5 VDC and Signal 2 is 6 VDC The common mode voltage for the two signals is 5 5 VDC 5 6 2 An undesired transfer of signals between systems or system components Crosstalk causes signal interference more commonly referred to as noise A digital signal is one of discrete value in contrast to a varying signal Combinations of binary digits Os and 1s represent digital data A circuit or device that converts digital values bina
61. Analog Com Analog Common Analog Common no connection no connection CH 19 Analog ped fi CH 31 Analog ba qi Aux 5 V CH 18 Analog ia i CH 30 Analog ol Expansion 5 V Analog Com _ i CH 15 Analog il Digital GND CH11 Analog CH 14 Analog 4 r Digital GND CH 10 Analog h 4 CH 21 Analog hi no connection CH 25 Analog 4 i CH 20 Analog ve E no connection CH 24 Analog ee CH 5 Analog N no connection A CHI Analog P CH 4 Analog amp no connection TB2 TB4 TB2 is associated with J5 even pins 2 through 20 on the main board TB4 is associated with J5 even pins 22 through 40 on the main board TB15 TB15 is not directly associated with pins on the main board CH 27 Analog q PR e i Analog Com di CH 59 Analog CH 26 Analog 7 d spi i CH 12 Analog a CH 51 Analog Analog Com fil bad i CH 13 Analog CH 58 Analog Zn CH3 Analog ia Ai CH 28 Analog dl CH 50 Analog A CH2 Analog 7 BES H CH 29 Analog i in CH 57 Analog CH 17 Analog i i 3 i Analog Com y i CH 49 Analog CH 16 Analog E fi CH 6 Analog CH 56 Analog A CH 1 Analog I a si 1 CH 7 Analog 5 s E CH 48 Analog A CH 0 Analog 4 i a i CH 22 Analog a i Analog Common Analog Com i g sa Di CH 23 Analog B L CH 63 Analog TBI TB3 TB1 is associated with J5 odd pins 1 through 19 on the main board TB6 TB6 is associated with J6 even p
62. Bipolar Buffer Buffer Amplifier Channel Common mode Common mode voltage Crosstalk Digital Digital to Analog Converter DAC DIP switch Differential mode Glossary A collection of scans acquired at a specified rate as controlled by the sequencer A signal of varying voltage or current that communicates data A circuit or device that converts analog values into digital values such as binary bits for use in digital computer processing Application Program Interface The interface program within the Daq system s driver that includes function calls specific to Daq hardware and can be used with user written programs several languages supported A range of analog signals with positive and negative values e g 5 to 5 V see unipolar Buffer refers to a circuit or device that allows a signal to pass through it while providing isolation or another function without altering the signal Buffer usually refers to a A device or circuit that allows for the temporary storage of data during data transfers Such storage can compensate for differences in data flow rates In a FIFO First In First Out buffer the data that is stored first is also the first data to leave the buffer b A follower stage used to drive a number of gates without overloading the preceding stage c An amplifier which accepts high source impedance input and results in low source impedance output effectively an impedance buffer
63. Channel Thermocouple Terminal Block STANDOFF Location Ref WARNING AGND Before connecting TC wires ensure that the associated ACHO AN analog channels are not in use Failure to do so could a possibly cause equipment damage and or personal injury ACH9 ACH2 ACH10 ACH3 4 The TB7 terminal block can be used to connect up to 4 thermocouples The ACHII first TC channel makes use of Analog Channel 0 for its positive lead and Analog Channel 8 for its negative lead The second TC channel uses analog Channels 1 and 9 and so on as indicated in the pinout to the left DaqBoard 3000USB Series Installation Guide 936993 IG 13 J7 and J8 40 Pin Headers for Digital Ports Counters Timers DACS Triggers Pacer Clocks and Other Signals Note The 4 DAC channels are available for DaqBoard 3001USB and 3031USB The DACs do not apply to DaqBoard 3005USB and 3035USB Timer 0 Counter 0 Counter 2 XAPCR A D Pacer Clock I O IG 14 Reference Note 40 This edge of the header is closest to overlay XAPCR i CH A4 CH A5 CH A6 CH A7 XTTLTRG CH B4 CH B5 CH B6 CH B7 Exp 5 Volts CH C4 CH C5 CH C6 CHC7 Timer 1 Counter 1 Counter 3 47070 O the board s center Note that pins 2 and 40 are labeled on the board 13VA X Analog Com XDACO XDAC1 Analog Com SelfCal Analog Com XTTLTRG XAPCR a Exp 5 Volts X sla X C X i a C
64. DB37 connectors which as can be seen from the pinouts offer the same signal connectivity as the SCSI connector Note that the J6 header is dedicated entirely to analog expansion and therefore is not applicable to 3001USB or 3005USB As in all scenarios a CA 179 x USB cable is used to connect the 3000USB Series board to a USB port on the host PC USB2 0 is recommended If you need to find the name of your device for example if you are writing a custom program for multiple devices navigate from the Windows Desktop to the Device Manager The navigation path 1s Start Settings Control Panel System Hardware Tab Device Manager Daqx PnP Devices You will see the device listed in the format of DaqBoard 3000USB see first figure below You can change the name of the device by doing a right click on the device name to open its properties dialog box then clicking on the Properties tab see second figure You can then change the FriendlyName of the device A Device Manager DaqBoard 3005USB Properties 7x File Action view Help General Properties Driver ue a ou can change the friendly name of the device with the following edit bos IF you give a name and click OE it will cause the device to restart ini FriendlyMame Dage PnP Devices L BP DagB0ard 3005USE ae Disk drives j ql Computer Locating DaqXPnP Devices Properties Dialog Box IG 6 936993 DaqBoard 3000USB Series Installation Guide
65. Data Destination window not shown lets you designate the directory for acquired data and the desired file formats DaqBoard 3000USB Series Installation Guide 936993 IG 17 5 Collect Data Click the Enable Readings Column button 17 or the Start All Indicators button 5 the data acquisition begins and the readings column becomes active Click the Acquire button 12 to send the data to disk File Edit Data Window Device Help oo ee A 4 5 6 7 8 9 10 11 12 dle Type me Bipolar CHOO 5 Bipolar CHOI W Yes 810 Bipolar CHOz W DaqView Main WindowChannel Setup Tab Selected Main Window a Brief Description of Button Control Functions 7 item O Deseto OOOO O for analyzing data in relation to x and y axes 6 Stop All indicators Stops displaying data in the Reading column and any open Ghart or Meters window 7 View File Data Launches an independent post data acquisition program such as eZ PostView if installed The data acquisition CD includes a PDF version of the post data acquisition document 8 Analog Output Displays the Analog Output window of the available DAC channels Na Digital I O Displays the Digital I O window Counter Timer Displays the Counter Timer window Waveform amp Pattern Displays the Arbitrary Waveform and Streamed Output windows Output Activates an acquisition of data to a file 13 ShowALL Channels Expands Analog amp Scanned Digital Inputs spreadsheet to show all
66. Full Low Speed USB devices can coexist on USB 2 0 hubs e USB 2 0 hubs can be used on computers with USB 1 1 ports but will not exhibit USB 2 0 capabilities Minimize hub use and keep USB cables as short as possible Regardless of the USB hub or port used if power to the DaqBoard 3000USB Series board is insufficient connect a TR 2 power adapter to the units External Power jack Only self powered hubs can supply sufficient power 500 mA at 5V nominal Verify that the AC to DC power supply for the self powered hub can supply at least 2 1 amps at 5 volts In general do not use more than three DaqBoard 3000USB systems per one self powered hub Triggering can be the most critical aspect of a data acquisition application The DaqBoard 3000USB Series supports a full complement of trigger modes to accommodate any measurement situation Hardware Analog Triggering TheDagBoard 3000USB Series uses true analog triggering whereby the trigger level programmed by the user sets an analog DAC which is then compared in hardware to the analog input level on the selected channel The result is analog trigger latency which is guaranteed to be less than1 3 us Any analog channel can be selected as the trigger channel The user can program the trigger level as well as the rising or falling edge and hysteresis When the starting out analog input voltage is near the trigger level and you are performing a rising or falling hardware analog level trigger
67. H 11 A As stated in the WARNINGS of the pinout and connection chapter Chapter 2 care must be taken to avoid redundant connections Although the 3000USB Series boards are powered via a USB port on a host PC an external power connector is available for cases in which the host PC s USB port cannot supply adequate power or for when the user prefers a separate power source The TR 2 is an optional power supply available for this purpose The TR 2 plugs into a standard 120VAC outlet and will supply 9VDC 1 amp power to the board via its external power connector see figure 40 Pin Headers 4 Channel TC J6 and J5 Terminal Board TB7 External Power USB 2 0 Port 40 Pin Headers J8 and J7 Location of Connectors 988093 DaqBoard 3000USB Series User s Manual Product Features DaqBoard 3001USB a a The DaqBoard 3000USB Series boards feature a 16 bit 1 MHz A D converter 16 analog input channels user expandable up to 64 for the 3031USB and 3035USB models up to four 16 bit 1 MHz analog outputs for models 3001USB and 3031USB 24 high speed digital I O channels 2 timer outputs and four 32 bit counters All analog I O digital I O and counter timer I O can operate synchronously and simultaneously guaranteeing deterministic I O timing amongst all signal types The DaqBoard 3000USB Series boards include a high speed low latency highly deterministic control output mode that operates independent of the PC In this mode bo
68. LFCAL Vcc 5 VDC Digital I O line AO Digital I O line A2 igital I O line PORTA Digital I O line A4 Digital I O line A6 Digital I O line BO Digital I O line B2 igital I O line PORT B Digital I O line B4 Digital I O line B6 Digital I O line CO Digital I O li 2 igital I O line C PORT C Digital I O line C4 Digital I O line C6 TTL Trigger Input Analog input Channel 0 67 Analog Common Analog input Channel 9 Analog input Channel 2 Analog Common nalog input Channel 11 m ow Level Sense Common nalog input Channel 12 nalog input Channel 5 nalog Common gt nalog input Channel 14 7 Analog input Channel 7 Analog Output 3 DAC3 Note 1 Analog Output 2 DAC2 Note 1 DACO Note 1 DAC1 Note 1 Digital Common N N Digital Common 52 Digital 1 0 line A1 51 Digital 1 0 line A3 PORTA 50 Digital I O line A5 49 Digital I O line A7 48 Digital 1 0 line B1 Digital I O line B3 PORT B 46 Digital 1 0 line BS AS Digital I O line B7 44 Digital 1 0 line C1 43 Digital 1 0 line C3 Donne 42 Digital 1 0 line C5 41 Digital 1 0 line C7 Digital Common N NI Counter input ero 5 39 Courter Input CRE Counter input cre 4 RM 88 counter impure O Timer output h avo Pacer Clock Inpux oxisue N 860 lotal common O Tome Pace cock vo a s oigtarcommen Note 1 DaqBoard 3001USB and 3031USB each include DACO DAC1 DAC2 and DAC3 DaqBoard 3005USB and 30
69. N UJ Ol e 00 Ul N O oX C TILTRG TTL Trigger Input GND Digital Common CNTO Counter Input CTRO CNT1 Counter Input CTR1 CNT2 Counter Input CTR2 CNT3 Counter Input CTR3 TMRO TMR1 Timer Output 1 XDPCR DAC Pacer Clock I O GND Digital Common N N _ Note 1 UJ UJ 00 Timer Output 0 N Note 1 Note 1 Digital Common Pins on the SCSI connector are 35 36 and 40 Screw Terminals for TB1 Side Analog Input Channel 0 3 Note 2 Analog Input Channel 8 Analog Common UJ UJ Analog Input Channel 1 Analog Input Channel 9 Analog Common Note 2 Dn Ul Analog Input Channel 2 3 Note 2 Analog Input Channel 10 Analog Common 3 6 Note 2 Analog Input Channel 3 UJ Analog Input Channel 11 Analog Common 2 6 Note 2 CO Analog Input Channel 4 Analog Input Channel 12 Analog Common Analog Input Channel 5 26 Note 2 Analog Input Channel 13 Analog Common 2 58 Note 2 Analog Input Channel 6 Analog Input Channel 14 Analog Common 5 2 N Analog Input Channel 7 UJ Analog Input Channel 15 Analog Output DAC3 DU N N N Low Level Sense Common O 5 VDC Positive Reference Analog Output DAC2 U1 Ul 5 Note 2 N 5 VDC Negative Reference Analog Common Analog Output DACO N Analog Common Note 2 Analog Output DAC1 N e Analog Common Note 2 A D Pacer Clock I O Digital Common Note 1 Note 2 Analog Common Pins on the SCSI connecto
70. NC Connection Module Appendix B Signal Modes and System Noise Signal Modes B 1 Connecting Thermocouples to Screw Terminal Blocks B 2 Shielding B 3 TC Common Mode B 3 Cold Junction Compensation Techniques B 4 System Noise B 5 Averaging B 5 Analog Filtering B 5 Input and Source Impedance B 5 Crosstalk B 6 Oversampling and Line Cycle Rejection B 6 Glossary vi 918893 DaqBoard 3000USB Series User s Manual DaqBoard 3000USB Series Installation Guide For USB 1 MHz 16 Bit Data Acquisition Boards DaqBoard 3001USB DaqBoard 3005USB DaqBoard 3031USB DaqBoard 3035USB IOtech Inc 25971 Cannon Road Cleveland OH 44146 1833 Phone 440 439 4091 Fax 440 439 4093 E mail Product Information sales iotech com E mail Technical Support productsupport iotech com Internet www iotech com DaqBoard 3000USB Series Installation Guide For USB 1 MHz 16 Bit Data Acquisition Boards pin 1136 0941 Rev 2 0 IG 2 936993 DaqBoard 3000USB Series Installation Guide DaqBoard 3000USB Series Installation Guide Contents Step 1 Install Software page 1G 4 Step 2 Connect Signal Lines and Hardware page IG 4 Step 3 Start DaqView page IG 16 Step 4 Configure the System page IG 17 Step 5 Collect Data page IG 18 Costumer Assistance page IG 19 Reference Note After you have completed the
71. Regarding Analog Input Channels for DaqBoard 3001USB and DaqBoard 3005USB Single Ended only analog channels 0 through 15 apply Differential only analog channels 0 through 7 apply Regarding Analog Input Channels for DaqBoard 3031USB and DaqBoard 3035USB Single Ended analog channels 0 through 63 apply Differential analog channels 0 through 31 apply 2 10 Connections amp Pinouts 927593 DaqBoard 3000USB Series User s Manual DBK215 16 Connector BNC Connection Module Option DBK215 If you are not using a TB 100 terminal board connection option with your DaqBoard 3000USB Series board you can instead make use of a DBK215 module The DBK215 includes BNC Access to 16 inputs or outputs on front panel on board screw terminal blocks on board socket locations for custom RC Filter networks 68 pin SCSI connector on rear panel O O O The top cover plate must be removed to access the terminal blocks and the RC filter network section of the DBK215 s board The 68 pin SCSI connector P5 connects to the DaqBoard 3000USB Series board s 68 pin SCSI connector via a CA G55 CA G56 or CA G56 6 cable The DBK215 provides BNC and screw terminal access to all analog and digital I O from the host data acquisition device Related to the screw terminals is a front panel slot for routing all I O wiring Reference Notes For details regarding the DBK215 refer to Appendix A DaqBoard 3000USB Series User s Manual 9
72. Scenario 2 Using a TB 100 A Thermocouple Wires or Connected to TB7 CA 1 9 x USB Cable CA G56 Cable TB 100 Option In this setup a TB 100 screw terminal board option is connected to the 68 pin SCSI connector via a CA G56 shielded cable However the use of other cables is possible as noted below In this example we can also see that 4 thermocouples are connected at TB7 on the 3000USB board This means that 8 analog channels to obtain 4 differential TC channels are required see following figure Redundant connections must be avoided A CA 179 x USB cable is used to connect the 3000USB Series board to a USB port on the host PC USB2 0 is recommended STANDOFF Location Ref Before connecting TC wires ensure that the AGND associated analog channels are not in use Failure cote gee to do so could possibly cause equipment damage ACH8 p y quip g ACH1 and or personal injury ACH9 ACH2 ACH10 ACH3 The TB7 terminal block can be used to connect up to 4 ASPRI dr thermocouples The first TC channel makes use of Analog Channel 0 for its positive lead and Analog Channel 8 for its negative lead The second TC channel uses analog Channels 1 and 9 and so on as indicated in the pinout to the left In DaqBoard 3000USB Series applications thermocouples should only be connected in differential mode Connecting thermocouples in single ended mode can cause noise and false readings Appendix
73. TANDOFF Location Ref Before connecting TC wires ensure that the associated analog channels are not in use Failure to do so could possibly cause equipment damage and or personal injury AGND ACHO The TB7 terminal block can be used to connect up to 4 thermocouples The ACH8 first TC channel makes use of Analog Channel 0 for its positive lead and ACHI Analog Channel 8 for its negative lead The second TC channel uses Acid analog Channels 1 and 9 and so on as indicated in the pinout to the left ACH10 ACH3 ACH11 Thermocouples should only be connected in differential mode Appendix B includes additional information DaqBoard 3000USB Series devices do not have open thermocouple detection DaqBoard 3000USB Series User s Manual 927593 Connections amp Pinouts 2 3 J7 and J8 40 Pin Headers for Digital Ports Counters Timers DACS Triggers Pacer Clocks and Other Signals Note The 4 DAC channels are available for DaqBoard 3001USB and 3031USB The DACs do not apply to DaqBoard 3005USB and 3035USB sO This edge of the header is closest to the CR board s center Note that pins 2 and 40 1 39 are labeled on the board silkscreen 13VA Fig 1 CH A4 _X CH AS Analog Com CH A6 XDACO CH A7 XDAC1 XAPCR XTTLTRG CH B4 CH B5 CH B6 CH B7 Exp 5 Volts CH C4 CH Cs CH C6 CH C7 Timer 1 Timer 0 Counter 1 Counter 0 Counter 3 Counter 2 XAPCR A D Pacer Clock I O An
74. To see the effects of different debounce time settings simply view the analog waveform along with the counter output This can be done by connecting the source to an analog input DaqBoard 3000USB Series User s Manual 887794 Counter Input Modes 5 3 Use trigger before stable mode when the input signal has groups of glitches and each group is to be counted as one The trigger before stable mode will recognize and count the first glitch within a group but reject the subsequent glitches within the group if the debounce time is set accordingly The debounce time should be set to encompass one entire group of glitches as shown in the following diagram Debounce Time I I Input LULL LL LLU Trigger Before Stable Trigger After Stable Trigger after stable mode behaves more like a traditional debounce function rejecting glitches and only passing state transitions after a required period of stability Trigger after stable mode is used with electro mechanical devices like encoders and mechanical switches to reject switch bounce and disturbances due to a vibrating encoder that is not otherwise moving The debounce time should be set short enough to accept the desired input pulse but longer than the period of the undesired disturbance as shown in the diagram below Debounce Time i i Trigger Before Stable Trigger After Stable l 5 4 Counter Input Modes 887794 DaqBoard 3000USB Series User s Manual Terms Applicable
75. Trigger Digital IN External TTL Trigger Input N A Expansion 10 Digital OUT external ADDRESS select bit 0 EXP 11 Expansion 11 Simultaneous Sample and Hold SSH AGND Analog Ground Common Pin Number and Description 5V 19 Expansion 5 V Power P1 TB12 The following SCSI Pins connect to Analog Common 24 27 29 32 55 56 59 64 and 67 ma canapa 1 pus pit i p SER ae S a Note 2 For TB9 and TB10 the filter network portion of the silkscreen is not shown Instead the DIFF and SE channel identifiers have been moved next to the screws for ease in identification DBK215 pg A 8 886994 Appendix A Pioita I O Correlation t to oe spins sos TBS T Pin Number and Descrip BEND Digital Ground Common DGND Digital Ground Common AT 9 Digitalvo PotA 67 OOOO O as 18 Dial vo Ponta Bt OOO O Digita O Port A a mu 16 oaro onana ooo a a7 DaO Pona i OOS AT se Dial vo tnam 18 Digital O Port A Bit 0 5 V 19 Expansion 5 V Power pii 5 V 19 Expansion 5 V Power DGND TS DGND Digital Ground Common DGND f 7 DGND Digital Govi Common data gt Digital Ground Common DENE I DGND Diga Ground Common DGND N is Digital Ground Common TB7 a NST DGND Digital Ground Common o a bigialvo Porno OOOO S ce r baone OO O Digita V0 Port G Pito ce s Diano Por 6 ta 02 o Dao Pon o 6 OSOS ci 44 bigitalvo Pono Bit OOS ALE Digi
76. True then Output Value 2 This is saying a If the input signal is outside the window high then Output Value 2 until the signal goes outside the window low and b if the signal is outside the window low then Output Value 1 until the signal goes outside the window high There is no change to the detect signal while within the window Value A defines the upper limit of the Window and Value B defines the low limit The detect signal has the timing resolution of the scan period as seen in the diagram below The detect signal can change no faster than the scan frequency 1 scan period Detectl Detect BA HRS HEMI dee doo oso ofes GEE cnc dh Acquisition stream l scan Group Ch 1 2 3 4 etc I a i Period Example Diagram of Detection Signals for Channels 1 2 and 3 Each channel in the scan group can have one detection setpoint There can be no more than 16 setpoints in total applied to channels within a scan group Detection setpoints act on 16 bit data only Since the DaqBoard 3000 Series boards have 32 bit counters data is returned 16 bits at a time The lower word the higher word or both lower and higher words can be part of the scan group Each counter input channel can have 1 detection setpoint for the counter s lower 16 bit value and 1 detection setpoint for the counter s higher 16 bit value 6 2 Setpoint Configuration for Output Control 887794
77. abled digital inputs and counter inputs are read during the first analog measurement of an analog input scan sequence The advantage of this mode is that the digital and counter inputs do not consume an analog input time slot and therefore do not reduce the available bandwidth for making analog input measurements For example presume all 24 bits of digital input are enabled and all four 32 bit counters are enabled and eight channels of analog inputs are in the scan sequence at full 1usec channel rate At the beginning of each analog input scan sequence which would be usec in total duration all digital inputs and counter inputs will be measured and sent to the PC during the first usec of the analog scan sequence 1 6 Device Overviews 988093 DaqBoard 3000USB Series User s Manual Another synchronous mode allows digital inputs to be scanned every time an analog input channel 1s scanned For example if eight analog inputs are scanned at 1 usec per channel continuously and 24 bits of digital inputs are enabled then the 24 bits of digital inputs will be scanned at 24 bits per 1 usec If counters are enabled in this mode they will be scanned at once per scan in the same manner as in the first example above Note It is not necessary to read counters as often as it is to read digital inputs This is because counters continue to count pulses regardless of whether or not they are being read by the PC Example 1 Analog channel scanning of voltage inp
78. acer Clocks and Other Signals 2 4 CA 248 40 Position Header to DB 37 Male Ribbon Cable 2 5 TB 100 Terminal Connector Option 2 6 TB 101 Terminal Board Option 2 7 DBK215 16 Connector BNC Connection Module Option 2 11 Hardware Setups 2 12 3 CE Compliance Overview 3 1 CE Standards and Directives 3 1 Safety Conditions 3 2 Emissions Immunity Conditions 3 2 4 Calibration 5 Counter Input Modes Tips for Making High Speed Counter Measurements gt 1 MHz 5 1 Debounce Module 5 1 Terms Applicable to Counter Modes 5 5 Counter Options 5 5 Counter Totalize Mode 5 6 Period Mode 5 8 Pulsewidth Mode 5 11 Timing Mode 5 13 Encoder Mode 5 15 DaqBoard 3000USB Series User s Manual 918893 v 6 Setpoint Configuration for Output Control Overview 6 1 Detecting Input Values 6 3 Controlling Analog Digital and Timer Outputs 6 4 P2C DAC or Timer Update Latency 6 6 More Examples of Control Outputs 6 7 Detection on an Analog Input DAC and P2C Updates 6 7 Detection on an Analog Input Timer Output Updates 6 8 Using the Hysteresis Function 6 8 Using Multiple Inputs to Control One DAC Output 6 10 The Setpoint Status Register 6 11 7 Specifications DaqBoard 3000USB Series Appendix A DBK215 16 Connector B
79. alog Com SelfCal Fig 3 Analog Com XTTLTRG XAPCR X Exp 5 Volts s X X i X Ge ir X Not Connected DB 37 SS 40 pin header Each 40 pin header can be terminated outto a DBI7 male connector via the CA 248 cable 13VA Fig 2 aX Analog Com XDAC2 XDAC3 Analog Com SGND Analog Com XDPCR na Aux Pwr Fig 4 X X X X A X X SGND Signal Ground Low Level Sense Common XDPCR DAC Pacer Clock I O J8 Pinout Figure References for Pins 1 2 13 and 26 R149 R152 13VA lt NN J8 Pin 1 J8 Pin 2 e gt 13VA R 52 100 R 52 100 Figure 1 J8 Pin 1 for 13VA Figure 2 J8 Pin 2 for 13VA SELFCAL J8 Pin 13 R153 C140 R 52 1K J8 Pin 26 eAAAH gt AUX_PWR C 53 1000P i R 52 100 Figure 3 J8 Pin 13 for Self Calibration Figure 4 J8 Pin 26 for Auxiliary Power 2 4 Connections amp Pinouts 927593 DaqBoard 3000USB Series User s Manual CA 248 40 Position Header to DB 37 Male Ribbon Cable fe 8 75 0 25 20 O 1 Red trace designates header connector pin 1 al H 7 I if o oO ii if to Vit o I jp O I pf 5 i o LE o 9 o H do rik 37 gt H r Er Hak ago JH I O 19 40 Position Header CA 248 Pinout DB 37 Pins listed Sequentially 40 Position Header 40 Position Header DaqBoard 3000USB Series User s Manual 927593
80. ance 957894 DaqBoard 3000USB Series User s Manual Calibration 4 The DaqCal exe calibration utility does not support DaqBoard 3000USB Series boards at present Please contact the factory for the latest calibration information concerning these products Every range of a DaqBoard 3000USB board is calibrated at the factory using a digital NIST traceable calibration method This method works by storing a correction factor for each range on the unit at the time of calibration The user can adjust the calibration of the board while it is installed in the acquisition system without destroying the factory calibration This is accomplished by having 3 distinct calibration tables in the on board EPROM The user can select any of the three cal tables provided factory user or self cal tables by API call or from within software Self cal can be performed automatically via the included software and without the use of external hardware or instruments Self cal derives its tracebility through an on board reference which has a stability of 0 005 per year Note that a 2 year calibration period is recommended for 3000USB Series boards Using a Temperature Calibrator DaqBoard 3000USB boards provide accurate and repeatable temperature measurements across a wide range of operating conditions However all instrumentation is subject to drift with time and with ambient temperature change If the ambient temperature of the operating environment is below 18
81. and then P2C can be updated immediately P2C digital outputs can be updated immediately upon setpoint detection This is not the case for analog outputs as these incur another 3us delay This is due to the shifting of the digital data out to the D A converter which takes lus plus the actual conversion time of the D A converter 1 e another 2us worst case Going back to the above example if the setpoint for analog input Channel 2 required a DAC update it would occur Sus after the ADC conversion for Channel 2 or 6us after the start of the scan When using setpoints to control any of the DAC outputs increased latencies may occur if attempting to stream data to DACS or pattern digital output at the same time The increased latency can be as long as the period of the DAC pacer clock For these reasons avoid streaming outputs on any DAC or pattern digital output when using setpoints to control DACS 6 6 Setpoint Configuration for Output Control 887794 DaqBoard 3000 Series User s Manual More Examples of Control Outputs Detection on an Analog Input DAC and P2C Updates Update Mode Update on True and False Criteria Ch 5 example Below Limit Ch 4 example Inside Window In this example Channel 5 has been programmed with reference to one setpoint Limit A defining a low limit and Channel 4 has been programmed with reference to two setpoints Limits A and B which define a window for that channel Channel Condition State of Act
82. annel to gate the counter OPT6 Allows the mapped channel to be measured for pulsewidth Timing Mode see page 13 OPT2 Determines whether the time is to be measured with a 16 bit counter Counter Low or a 32 bit counter Counter High DaqBoard 3000USB Series User s Manual 887794 Counter Input Modes 5 5 Encoder Mode see page 15 OPT 1 0 Determines the encoder measurement mode 1X 2X or 4X OPT2 Determines whether the counter is 16 bits Counter Low or 32 bits Counter High OPT3 Determines which signal latches the counter outputs into the data stream going back to the 3000USB Series board Start of scan or mapped channel OPT4 Allows the mapped channel to gate the counter OPTS Allows the mapped channel to clear the counter for Z reference Counter Totalize Mode The counter mode allows basic use of a 32 bit counter While in this mode the channel s input can only increment the counter upward When used as a 16 bit counter Counter Low one channel can be scanned at the 12 MHz rate When used as a 32 bit counter Counter High two sample times are used to return the full 32 bit result Therefore a 32 bit counter can only be sampled at a 6 MHz maximum rate If only the upper 16 bits of a 32 bit counter are desired then that upper word can be acquired at the 12 MHz rate The first scan of an acquisition always zeroes all counters It is usual for all counter outputs to be latched at the beginning of each scan however
83. aqBoard 3001USB can accept 16 Single Ended or 8 Differential analog inputs DaqBoard 3031USB can accept 64 Single Ended or 32 Differential analog inputs The 3001USB and 3031USB boards each have 4 analog outputs 1 2 Device Overviews 988093 DaqBoard 3000USB Series User s Manual Note 3 amp DETO SE Programmi cite Analog input Dor impiis el Ang on i inp Feotecton 7 One TEL hgga incu len Ore Andiog input Pace Glock _ Paso leE Time Oa i Fou 32 8 Counberinpus 1 Program able Suc Trebam luria 19 Hag ha 8a Digia O Forti 1 E a Leo Sym _ up h 5 Fori Contote i Contola hi Cometa AY Pos Cont tia 7 filets Z EEPROM clio ci i i i n i i O M MMM Block Diagram for DaqBoard 3005USB and 3035USB Note 1 Pins for all digital I O counters timers and 16 analog inputs are on the 68 pin SCSI connector Chapter 2 includes pinouts Note 2 Optional power source TR 2 adapter connects to the External Power connector if the USB cannot supply enough power See Specifications Chapter 7 in regard to power consumption Note 3 DaqBoard 3005USB can accept 16 Single Ended or 8 Differential analog inputs DaqBoard 3035USB can accept 64 Single Ended or 32 Differential analog inputs The 3005USB and 3035USB boards have no analog outputs DaqBoard 3000USB Series User s Manual 988093 Device Overviews 1 3 Connections SCSI 68 pin P5 40 pin Headers J5 J6 J7 J8
84. ave a per channel sample rate in the multiple kHz range DaqBoard 3000USB Series User s Manual 988093 Device Overviews 1 5 Signal I O One 68 pin connector provides access to the 16SE 8DE analog input channels 24 digital I O lines counter timer channels and analog outputs when applicable Redundant connectivity is found in four 40 pin headers two of which provide each DaqBoard 3031USB and 3035USB board with expansion capability for having a total of 64 single ended or 32 differential channels Reference Note In regard to analog expansion refer to the J5 and J6 pinouts in chapter 2 Analog Input Each DaqBoard 3000USB Series board has a 16 bit 1 MHz A D coupled with 16 single ended or 8 differential analog inputs up to 64 SE or 32 DE for 3031USB and 3035USB boards Seven software programmable ranges provide inputs from 10V to 100 mV full scale Each channel can be software configured for a different range as well as for single ended or differential bipolar input Each differential channel can accept any type of thermocouple input Synchronous I O The DaqBoard 3000USB series has the ability to make analog measurements and scan digital and counter inputs In addition DaqBoard 3001USB and 3031USB boards can synchronously generate up to four analog outputs Additionally while digital inputs and counter inputs can be synchronously scanned along with analog inputs they do not affect the overall A D rate because they
85. c The standards are published in the Official Journal of European Union under direction of CENELEC European Committee for Electrotechnical Standardization The specific standards relevant to Daq equipment are listed on the product s Declaration of Conformity and include CISPR22 1985 EN55022 1988 Information Technology Equipment Class A for commercial industrial use and EN50082 1 1992 for various categories of EMI immunity The safety standard that applies to Daq products is EN 61010 1 1993 Safety Requirements for Electrical Equipment for Measurement Control and Laboratory Use Part 1 General Requirements Environmental conditions include the following e indoor use e altitude up to 2000 m e temperature 5 C to 40 C 41 F to 104 F e maximum relative humidity 80 for temperatures up to 31 C 87 8 F decreasing linearly to 50 relative humidity at 40 C 104 F e mains supply voltage fluctuations not to exceed 10 of the nominal voltage e other supply voltage fluctuations as stated by the manufacturer e transient overvoltage according to installation categories overvoltage categories I II and III For mains supply the minimum and normal category is II e pollution degree I or II in accordance with IEC 664 DaqBoard 3000USB Series User s Manual 957894 CE Compliance 3 1 For clarification terms used in some Declarations of Conformity include e pollution degree any addition of foreign matter solid liqui
86. can change state When this happens the output will also change state At the end of time period T4 the input changes state going low and the output follows this action by going low TS During time period T5 the input signal again has disturbances that cause the input to not meet the debounce time requirement The output does not change state T6 After time period T6 the input signal has been stable for the debounce time and therefore any edge on the input after time period T6 will be immediately reflected in the output of the debounce module Mode Comparison The following example shows how the two modes interpret the same input signal which exhibits glitches Notice that the Trigger Before Stable mode will recognize more glitches than the Trigger After Stable mode Use the bypass option to achieve maximum glitch recognition i Debounce i i Debounce i Debounce i Time I Time I Time I i i i Input i Trigger Before Stable Trigger After Stable Oo Example of Two Debounce Modes Interpreting the Same Signal Debounce times should be set according to the amount of instability expected in the input signal Setting a debounce time that is too short may result in unwanted glitches clocking the counter Setting a debounce time too long may result in an input signal being rejected entirely Some experimentation may be required to find the appropriate debounce time for a particular application
87. channel This also allows the counters to be asynchronously read COUNTER OPT4 Allows the mapped channel to gate the counter if desired When the mapped channel is high the counter is enabled When the mapped channel is low the counter is disabled but holds the count value The mapped channel can be any other input channel COUNTER OPTS Allows the mapped channel to decrement the counter With this option the input channel for the counter will increment the counter The mapped channel can be used to decrement the counter COUNTER OPT6 Allows the mapped channel to increment the counter instead of the main channel This option allows the counter to be used with any other input channel post debounce If the channel s input is used elsewhere for example gating another counter the counter for this channel does not need to go unused Asynchronously Reading These Counters If the counter is in asynchronous mode the clear on read mode is available The counter s lower 16 bit value should be read first This will latch the full 32 bit result and clear the counter The upper 16 bit value can be read after the lower 16 bit value Also counters can only be asynchronously read in modes that allow the mapped channel to latch the data 1 e Counter and Encoder modes However it is possible for the user to use that read strobe as a mapped channel elsewhere if desired For example the read strobe could be used to increment or decrement the
88. counter that is clocked by A then that counter will give the number of pulses the encoder has rotated from its reference The Z signal is a reference marker for the encoder It should be noted that when the encoder is rotating clockwise as viewed from the back A will lead B and when the encoder is rotating counter clockwise A will lag B If the counter direction control logic is such that the counter counts upward when A leads B and counts downward when A lags B then the counter will give direction control as well as distance from the reference An Example of Encoder Accuracy If there are 512 pulses on A then the encoder position is accurate to within 360 degrees 512 Even greater accuracy can be obtained by counting not only rising edges on A but also falling edges on A giving position accuracy to 360 degrees 1024 The ultimate accuracy is obtained by counting rising and falling edges on A and on B since B also has 512 pulses This gives a position accuracy of 360 degrees 2048 These 3 different modes are known as 1X 2X and 4X The 3000USB Series board implements all of these modes and functions as described in the following options T Gate Ch ri i OPT4 fanne impui Incre t Lore ig Post Debounce Wa acta 6 High Word A i CTRO CTR2 gt Decrement n criniera ANO See re Decrement he 0 Buffer Clear Latch OPTS 11 4 Channel Inputs Soa Ba alare start of Scan Signal 4 Asynchronous Mapped Chann
89. couple is connected directly to an engine component in a motor vehicle at a potential that 1s over the maximum common mode voltage then very noisy or incorrect readings will be seen Thermocouple connections that are made directly to an alternator or engine block may also result in high noise Two methods of reducing noise are a Runa ground line from the screw or bolt as indicated in the first figure b Isolate the thermocouple leads with a set of washers one of which is mica as indicated in the second figure The length of the shoulder washer s hub must not exceed the combined thickness of the terminal ring and mica washer Shoulder Washer Ring To 3000USB gt Sees Device Terminal If a thermocouple shield is connected to the DaqBoard 3000USB Series board leave the shield unconnected at the other end of the thermocouple Connecting the shield to common at both Terminal Rings Ground Wire to Negative Terminal of Vehicle Battery To 3000USEB Series Device Running a Ground Wire to the Battery s Negative Terminal A thin layer of heat sink compound on the indicated surfaces will improve thermal conductivity I Heat Sink Compound Mica Washer Using a Washer Set and Heat Sink to Isolate the Thermocouple Appendix B 886994 Signal Modes and System Noise B 3 B 4 Cold Junction Compensation Techniques The DaqBoard 3000USB Series boards can measure up
90. cted to CTRI1 GND Digital Common Pin 35 36 or 40 5 VDC Pin 19 CTRO Pin5 A CTR1 Pin 39 EB CTR2 Pin aiai Encoder METTO Encoder Connections to pins on the SCSI Connector Connections can instead be made to the associated screw terminals of a connected TB 100 terminal connector option In addition to the previous figure the following table indicates how to connect a single encoder to a 3000USB Series board Each signal A B Z can be connected as a single ended connection with respect to the common ground The encoder can draw power from the 3000USB Series board s 5 VDC power output pin 19 Connect the encoder s power input to the 5V pin and connect the return to digital common GND on the same connector The programming setup given below is just a representative of possible options Single Encoder Programming Example Setup SCSI Pin Example Programming Setup Pin 5 Encoder A Encoder Mode 4X option 16 bit counter Latch on SOS Map channel CTRO Clears the counter set Map channel to CTR2 Pin 39 Encoder B Period Mode 1Xperiod option 16 bit counter Map channel doesn t gate CTR 1 Ticksize to 208 3 ns Encoder Z Counter in Totalize mode stop at the top 16 bit counter CTR2 If the encoder stops rotating but is vibrating due to the machine it is mounted to the debounce feature can be used to eliminate false edges An appropriate debounce time can be chosen
91. d of the 48 MHz system clock The count value returned in the scan is the number of ticks that make up the time measurement Counter Options The following mode options are available with the 3000USB Series board and are detailed in the upcoming pages A separate block diagram has been created for each mode Note that the OPT numbers relate to sections of the block diagrams Counter Totalize Mode see page 6 OPTO Selects totalize or clear on read mode OPT1 Determines if the counter is to rollover or stop at the top OPT2 Determines whether the counter is 16 bits Counter Low or 32 bits Counter High OPT3 Determines which signal latches the counter outputs into the data stream back to the 3000USB Series board Start of scan or mapped channel OPT4 Allows the mapped channel to gate the counter OPTS Allows the mapped channel to decrement the counter OPT6 Allows the mapped channel to increment the counter Period Mode see page 8 OPT 1 0 Determines the number of periods to time per measurement 1 10 100 1000 OPT2 Determines whether the period is to be measured with a 16 bit Counter Low or 32 bit Counter High OPT4 Allows the mapped channel to gate the counter OPT6 Allows the mapped channel to be measured for periods Pulsewidth Mode see page 11 OPT2 Determines whether the pulsewidth is to be measured with a 16 bit counter Counter Low or a 32 bit counter Counter High OPT4 Allows the mapped ch
92. d or gaseous ionized gases that may produce a reduction of dielectric strength or surface resistivity Pollution Degree I has no influence on safety and implies the equipment is at operating temperature with non condensing humidity conditions no conductive particles are permitted in the atmosphere warm up time is sufficient to avert any condensation or frost no hazardous voltages are applied until completion of the warm up period Pollution Degree II implies the expectation of occasional condensation e overvoltage installation category classification with limits for transient overvoltage dependent on the nominal line voltage to earth Category I implies signals without high transient values Category II applies to typical mains power lines with some transients Safety Conditions Users must comply with all relevant safety conditions in the user s manual and the Declarations of Conformity This manual and Daq hardware make use of the following Warning and Caution symbols If you see either of these symbols on a product carefully read the related information and be alert to the possibility of personal injury This warning symbol is used in this manual or on the equipment to warn of possible i injury or death from electrical shock under noted conditions This warning caution symbol is used to warn of possible personal injury or equipment damage under noted conditions Daq products contain no user serviceable parts refer all ser
93. d procedures Scenario 1 Using CA 248 Cables to obtain DB37 Connectors DB37 Male Connector Part of Cable CA 248 40 Pin Header Cable Option 1 of 4 ques eg sz 3000USB d Series Board CA 179 x USB Cable In this setup a CA 248 cable is connected to each of the 40 pin headers J5 J6 J7 and J8 The result is four male DB37 connectors which as can be seen from the pinouts offer the same signal connectivity as the SCSI connector Note that the J6 header is dedicated entirely to analog expansion and therefore is not applicable to 3001USB or 3005USB As in all scenarios a CA 179 x USB cable is used to connect the 3000USB Series board to a USB2 0 port on the host PC 2 12 Connections amp Pinouts 927593 DaqBoard 3000USB Series User s Manual Scenario 2 Using a TB 100 pr ana Thermocouple Wires o Connected to TB7 CA 1 9 x USB Cable CA G56 Cable TB 100 Option In this setup a TB 100 screw terminal board option is connected to the 68 pin SCSI connector via a CA G56 shielded cable However the use of other cables is possible as noted below In this example we can also see that 4 thermocouples are connected at TB7 on the 3000USB board This means that 8 analog channels to obtain 4 differential TC channels are required see following figure Redundant connections must be avoided WARNING STANDOFF Location Ref Before connecting TC wires ensure that the associated analog channels are
94. e connected at TB7 on the 3000USB board This means that 8 analog channels to obtain 4 differential TC channels are required see following figure Redundant connections must be avoided A TR 2 power supply is being used and is connected to the board s external power connector WARNING STANDOFF Location Ref Before connecting TC wires ensure that the associated od analog channels are not in use Failure to do so could a possibly cause equipment damage and or personal injury A AGND TC CH E 4 ACHO i The TB7 terminal block can be used to connect up to 4 thermocouples The B ACH8 first TC channel makes use of Analog Channel 0 for its positive lead and TC CH1 E 4 ACHI Analog Channel 8 for its negative lead The second TC channel uses 4 ACH9 analog Channels 1 and 9 and so on as indicated in the pinout to the left tc cH2 K ACH2 J I ACH10 Thermocouples should only be connected in differential mode TC CH3 i 4 ACH3 Appendix B includes additional information f ACH11 DaqBoard 3000USB Series devices do not have open thermocouple detection As in all scenarios a CA 179 x USB cable is used to connect the 3000USB Series board to a USB2 0 port on the host PC Any of the following 68 conductor expansion cables can be used to connect the DBK215 module option the SCSI connector CA G55 3 feet ribbon cable CA G56 3 feet shielded expansion cable CA G56 6 6 feet shielded expansi
95. e in any state long enough No change in the output is seen TS At the end of time period T5 the input signal has transitioned low and stayed there for the required amount of time therefore the output goes low Trigger Before Stable Mode In the Trigger Before Stable mode the output of the debounce module immediately changes state but will not change state again until a period of stability has passed For this reason the mode can be used to detect glitches Debounce Module Trigger Before Stable Mode The following time periods T1 through T6 pertain to the above drawing T1 In the illustrated example the Input signal is low for the debounce time equal to T1 therefore when the input edge arrives at the end of time period T1 it is accepted and the Output of the debounce module goes high Note that a period of stability must precede the edge in order for the edge to be accepted 5 2 Counter Input Modes 887794 DaqBoard 3000USB Series User s Manual T2 During time period T2 the input signal is not stable for a length of time equal to T1 the debounce time setting for this example Therefore the output stays high and does not change state during time period T2 T3 During time period T3 the input signal is stable for a time period equal to T1 meeting the debounce requirement The output is held at the high state This is the same state as the input T4 At anytime during time period T4 the input
96. eatured Daq control panel and all the data display capabilities of Excel e Post acquisition data analysis programs e g PostView DIAdem and eZ PostView typically allow you to view and edit post acquisition data e The Dag Configuration control panel allows for interface configuration testing and troubleshooting Each Daq system comes with an Application Programming Interface API API language drivers include C C and Visual Basic The latest software is a 32 bit version API DaqBoard 3000USB Series User s Manual 988093 Device Overviews 1 17 Reference Notes o The software documents for DagView ViewXL and Post Acquisition Data Analysis are not included as part of the hardcopy manual but are available in PDF version See the PDF Note below o Programming topics are covered in the Programmer s User Manual 1008 0901 As a part of product support this manual is automatically loaded onto your hard drive during software installation The default location is the Programs directory which can be accessed through the Windows Desktop PDF During software installation Adobe PDF versions of user manuals will automatically Note install onto your hard drive as a part of product support The default location is in the Programs directory which can be accessed from the Windows Desktop Refer to the PDF documentation for details regarding both hardware and software A copy of the Adobe Acrobat Reader is included on your CD
97. ed pair with a 50 ohm or 100 ohm resistor at the terminal block o The amplitude of the driving waveform should be as high as possible without violating the over voltage specification o To ensure adequate switching waveforms should swing at least OV to 5V and have a high slew rate Each channel s output can be debounced with 16 programmable debounce times from 500 ns to 25 5 ms The debounce circuitry eliminates switch induced transients typically associated with electro mechanical devices including relays proximity switches and encoders From the following illustration we can see that there are two debounce modes as well as a debounce bypass In addition the signal from the buffer can be inverted before it enters the debounce circuitry The inverter is used to make the input rising edge or falling edge sensitive Edge selection is available with or without debounce In this case the debounce time setting is ignored and the input signal goes straight from the inverter or inverter bypass to the counter module There are 16 different debounce times In either debounce mode the debounce time selected determines how fast the signal can change and still be recognized The two debounce modes are trigger after stable and trigger before stable A discussion of the two modes follows Inverter Bypass From SCSI Connector To Counters Buffer Inverter Debounce Model DaqBoard 3000USB Series User s Manual
98. ed to the 68 pin SCSI connector via a CA G56 shielded cable However the use of other cables is possible as noted below In this example we can also see that 4 thermocouples are connected at TB7 on the 3000USB board This means that 8 analog channels to obtain 4 differential TC channels are required see following figure Redundant connections must be avoided A TR 2 power supply is being used and is connected to the board s external power connector A CA 179 x USB cable is used to connect the 3000USB Series board to a USB port on the host PC USB2 0 is recommended STANDOFF Location Ref WARNING l Before connecting TC wires ensure that the ia associated analog channels are not in use Failure f e TC CHO a r ACH8 to do so could possibly cause equipment damage TC CHI O ACH1 and or personal injury ACH9 Te CH2 G ACH2 4 ACH10 l Te CH3 7 ACH3 The TB7 terminal block can be used to connect up to 4 ACH11 thermocouples The first TC channel makes use of Analog Channel 0 for its positive lead and Analog Channel 8 for its negative lead The second TC channel uses analog Channels 1 and 9 and so on as indicated in the pinout to the left In DaqBoard 3000USB Series applications thermocouples should only be connected in differential mode Connecting thermocouples in single ended mode can cause noise and false readings Appendix B of the user s manual includes additional information As i
99. el Read Strobes OPTS Encoder Mode There is one asynchronous read strobe for each of the four counter channels 5 16 Counter Input Modes 887794 DaqBoard 3000USB Series User s Manual ENCODER OPT 1 0 This determines the encoder measurement mode 1X 2X or 4X ENCODER OPT3 This determines which signal latches the counter outputs into the data stream going back to the 3000USB Series board Normally the start of scan signal latches the counter outputs at the beginning of every scan The other option is to have the mapped signal latch the counter outputs This allows the user to have another signal control the latching of the count data so the exact value of the counter is known when an edge is present on another channel ENCODER OPT4 This allows the mapped channel to gate the counter if desired When the mapped channel is high the counter is enabled to count when the mapped channel is low the counter is disabled but holds the count value The mapped channel can be any other input channel ENCODER OPTS This allows the mapped channel to clear the counter if desired OPTS implements the Z function described above allowing the encoder reference to clear the counter The counter is cleared on the rising edge of the mapped channel Encoder Wiring Diagrams You can use up to two encoders with each 3000USB Series board module in your acquisition system Each A and B signal can be made as a single ended connection with res
100. el in the scan group will take 256 microseconds the returned 16 bit value represents an average of 256 consecutive lus samples of that channel The acquisition is triggered and 16 bit values each representing an average of 256 stream to the PC via USB2 Since two of the channels in the scan group are temperature channels the acquisition engine will be required to read a cold junction compensation CJC temperature every scan Start of Scan Start of Scan Start of Scan Start of Scan 22 2315 11 0 2 22 23 s 11 Programmable I Averaging up to 16384 Scan Period In this example the desired number of oversamples is 256 therefore each analog channel in the scan group requires 256 microseconds to return one 16 bit value The oversampling is also done for CJC temperature measurement channels The minimum scan period for this example is therefore 7 X 256 us or 1792 microseconds The maximum scan frequency is the inverse of this number 558 Hz Autozero may also be employed This adds more channels to the scan group and further reduces the maximum scan frequency Autozero channels read an on board shorted analog input Auto zeroing reduces drift due to fluctuating ambient temperatures or ambient temperatures outside the DC specifications Reference Note Appendix B includes detailed information regarding signal modes methods of noise reduction and averaging techniques 1 8 Device Overviews 988093 DaqBoard 3000USB Series User s Manual
101. enerate a trigger condition for any combination of analog digital or counter inputs Multiple channels can either be combined in a logical or or and condition with hysteresis programmable per channel Maximum latency in this mode is one scan period 7 6 DaqBoard 3000USB Series Specifications 918593 Note Specifications are subject to change without notice Analog Outputs 3001USB and 3031USB models only Analog output channels are updated synchronously relative to scanned inputs and clocked from either an internal onboard clock or an external clock source Analog outputs can also be updated asynchronously independent of any other scanning in the system Streaming from disk or memory is supported allowing continuous waveform outputs limited only by available PC system resources Channels 4 DAC channels DACO DAC1 DAC2 DAC3 Resolution 16 bits Data Buffer PC based memory Output Voltage Range 10V Output Current 1 mA max sourcing more current may require a TR 2 power adapter option Offset Error 0 0045V maximum Digital Feedthrough lt 10 mV when updated DAC Analog Glitch lt 12 mV typical at major carry Gain Error 0 01 Update Rate 1 MHz maximum 19 hours minimum no minimum with external clock resolution 20 83 ns Settling Time 2 us to rated accuracy Clock Sources 4 programmable 1 Onboard D A clock independent of scanning input clock 2 Onboard scanning input clock 3 External D A input clock ind
102. ependent of external scanning input clock 4 External scanning input clock Digital I O 5V Logic Acquisition Engine SCSI 65 pin One Digital I O Channel Typical Channels 24 Ports 3 x 8 bit Each port is programmable as input or output Input Scanning Modes 2 programmable 1 Asynchronous under program control at any time relative to input scanning 2 Synchronous with input scanning Input Characteristics 220 series resistor 20 pF to common Logic Keeper Circuit Holds the logic value to 0 or 1 when there is no external driver Input Protection 15 kV ESD clamp diodes parallel Input Levels Low 0 to 0 8V High 2 0V to 5 0V Output Levels Low lt 0 8V High gt 2 0V Output Characteristics Output 1 0 mA per pin sourcing more current may require a TR 2 power adapter option Sampling Rate 4 MHz maximum Update Rate 4 MHz maximum 19 hours minimum no minimum with external clock resolution 20 83 ns Note Specifications are subject to change without notice 918593 Specifications 7 7 Pattern Generation Output Two of the 8 bit ports can be configured for 16 bit pattern generation The pattern can be updated synchronously with an acquisition at up to 1 MHz Counters 3 3V 5V 10 KO SCSI Counter 68 pin 200 02 One Counter Channel Typical Each of the four high speed 32 bit counter channels can be configured for counter period pulse width time between edges or multi ax
103. equired to have less than 1 ppm sampling error and is greater than 50kHz use the 15 50kHz 1ppm range The values returned will have sampling error that is greater than 1ppm but they can be averaged by the PC software to further reduce the sampling error 5 10 Counter Input Modes 887794 DaqBoard 3000USB Series User s Manual Pulsewidth Mode This mode provides a means to measure a channel s pulsewidth The measurement is the time from the rising edge to the falling edge or visa versa The measurement will be either pulsewidth low or pulsewidth high depending upon the edge polarity set in the debounce module Every time the pulsewidth measurement is latched from the counter the counter is immediately cleared and enabled to count the time for the next pulsewidth The pulsewidth measurements are latched as they become available Law Word High Weed 32 Bits To PC Buffer Increment Channel Input Post Debounce i OPTE Mapped Channel 4 Channel Inputs Post Debounce 4 Asynchronous Read Strobes Pulsewidth Mode There is one asynchronous read strobe for each of the four counter channels Note 1 Tick sizes are 20 83ns 208 3ns 2083ns and 20833ns derived from the 48 MHz system clock An example one channel s acquired data might be 0 0 0 0 80 80 80 80 79 79 79 79 81 81 81 81 This data represents the number of ticksize intervals counted during the pulsewidth measurement The first value s re
104. ge is within the shaded region and a different value when the analog input voltage is outside the shaded region 30h in the example Detection on an Analog Input Timer Output Updates Update Mode Update on True and False Criteria Used Inside Window The figure below shows how a setpoint can be used to update a timer output Channel 23 is an analog input channel It could be any analog input channel but in this example it happens to be on a PDQ30 expansion module A setpoint is applied using Update on True and False with a criteria of inside the window where the signal value is inside the window when simultaneously less than Limit A but greater than Limit B Whenever the Channel 23 analog input voltage is inside the setpoint window condition True timer0 will be updated with one value and whenever the Channel 23 analog input voltage is outside the setpoint window condition False timer0 will be updated with a second output value An output value of 65535 will stop the timer Limit A for Channel 23 Limit B for Channel 23 Ch23 analog input voltage Detection Signal Timer0 Updating a Timer Output Update on True and False 6 8 Setpoint Configuration for Output Control 887794 DaqBoard 3000 Series User s Manual Using the Hysterisis Function Update Mode N A the Hysterisis option has a forced update built into the function Criteria Used window criteria for above and below the set limits The figure below
105. hannels 1 and 9 and so on as indicated in the pinout to the left ACHIO Thermocouples should only be connected in differential mode press ni Appendix B includes additional information DaqBoard 3000USB Series devices do not have open thermocouple detection Note that a CA 179 x USB cable is being used to connect the 3000USB Series board to a USB port on the host PC Any of the following 68 conductor expansion cables can be used to connect the DBK215 module option the SCSI connector CA G55 3 feet ribbon cable CA G56 3 feet shielded expansion cable CA G56 6 6 feet shielded expansion cable Appendix A 886994 DBK215 A 5 Using the Screw Terminal Blocks You must remove the DBK215 module s cover plate to access the screw terminal blocks This is described in steps 1 and 2 below 1 Remove the top inward screws from each of the 4 mounting brackets See following figure To remove the cover plate you must first remove the top inward screw from each of the 4 mounting brackets The Cover Plate is Secured by 4 Srews 2 Screws per side 2 After the 4 screws have been removed carefully remove the cover plate 3 As soon as the DBK215 cover is removed verify that the Host Power LED is Off See following figure for location HOST POWER 01 Host Power LED Location 4 Make the wiring connections to the terminals Refer to the board s silkscreen and to the pin correlations on the next few pages
106. has an inside the window setpoint applied Whenever Channel 7 s input goes inside the programmed window DAC2 will be updated with minus 7 0V Limit A for Ch3 Limit B for Ch3 Limit A for Ch7 Limit B for Ch7 Detection Ch3 Detection Ch7 Start of Acquisition POY Denotes DAC update l DAC2 0 0 V 7 0 V Using Two Criteria to Control an Output The update on True Only mode was selected and therefore the updates for DAC2 will only occur when the criteria is met However in the above figure we see that there are 2 setpoints acting on one DAC We can also see that the two criteria can be met simultaneously When both criteria are True at the same time the DAC2 voltage will be associated with the criteria that has been most recently met 6 10 Setpoint Configuration for Output Control 887794 DaqBoard 3000 Series User s Manual The Setpoint Status Register Regardless of which software application you are using with a DaqBoard 3000 Series device a setpoint status register can be used to check the current state of the 16 possible setpoints In the register Setpoint 0 is the least significant bit and Setpoint 15 is the most significant bit Each setpoint is assigned a value of 0 or 1 0 indicates that the setpoint criteria is not met 1 e the condition is false 1 indicates that the criteria has been met 1 e the condition is true Related information is provided in the overview pages 6 1 and 6 2
107. he 3000USB Series board has the ability to provide various frequency ranges that are based upon different ticksizes averaging options and counter size 16 bit or 32 bit values The frequency ranges are designed to fit a wide array of possible applications Within each range the sampling error decreases dramatically as the input period increases The ranges will get smaller as required accuracy increases DaqBoard 3000USB Series User s Manual 887794 Counter Input Modes 5 9 Upper 16 bits of the 32 bit counter Lower 16 bits of the 32 bit counter Range Hz Ticksize nS Averaging Range Hz Ticksize nS Option Option 15u 1500u 20833 333 1 100 20833 333 150u 15m 2083 333 10 1k 2083 333 1500u 150m 208 333 100 10k 208 333 15m 1500m Frequency Ranges for a 16 bit value sampling error ts less than 0 21 Each frequency range given in the previous table set can be exceded If the input waveform goes under range by too much the counter value will top out at 65535 indicating you have reached the lowest possible frequency that can be measured on that range If the inout waveform goes over range by too much the counter will return values that are very course and have a lot of sampling error The values returned will have a small number of counts for the period duration If an input waveform cannot fit within one of the 16 bit ranges shown above or requires much higher accuracy then a 32 bit range should be considered
108. he start of scan to settle on the updated value This is due to the amount of time to shift the digital data out to the DACs plus the actual settling time of the digital to analog conversion The data for the DACs and pattern digital output comes from a PC based buffer The data is streamed across the USB2 bus to the board It is possible to update the DACs and pattern digital output with the DAC pacer clock either internally generated or externally applied In this case the acquisition input scans are not synchronized to the analog outputs or pattern digital outputs It is possible to synchronize everything input scans DACs pattern digital outputs to one clock That clock can be either internally generated or externally applied DaqBoard 3000USB Series User s Manual 988093 Device Overviews 1 15 Counter Inputs Four 32 bit counters are built into each DaqBoard 3000USB Series board Each of the four counters accepts frequency inputs up to 20 MHz The high speed counter channels can be configured on a per channel basis Possible configurations include the following modes O O O O O Counter Period Pulse width Time between edges Multi axis quadrature encoder Reference Note For detailed information regarding the various counter modes refer to Chapter 5 Counter Input Configuration Modes The counters can concurrently monitor time periods frequencies pulses and other event driven incremental occurrences directly from e
109. hich allows the user to individually configure up to 16 detection setpoints associated with channels within a scan group Each detection setpoint can be programmed in the following ways Single Point referenced above below or equal to the defined setpoint Window dual point referenced inside or outside the window o Window dual point referenced Hysterisis Mode outside the window high forces one output designated Output 2 outside the window low forces another output designated as Output 1 Detect Rising Edge Detect Falling Edge Condition fue Condition False Channel Input Criteria Condition Action A digital detect signal is used to indicate when a signal condition is True or False 1 e whether or not the signal has met the defined criteria The detect signals themselves can be part of the scan group and can be measured as any other input channel thus allowing real time data analysis during an acquisition Each setpoint can update the following allowing for real time control based on acquisition data o P2C digital output port with a data byte and mask byte o analog outputs DACs O timers The detection module looks at the 16 bit data being returned on a given channel and generates another signal for each channel with a setpoint applied Detect1 for Channel 1 Detect2 for Channel 2 etc These signals serve as data markers for each channel s data It doesn t matter whether that data is volts
110. in relation to multiplexers involves the use of buffers The term buffer has several meanings but in this case buffer refers to an operational amplifier having high input impedance but very low output impedance Placing such a buffer on each channel between the transducer and the multiplexer prevents the multiplexer s stray capacitance from combining with the high input impedance This use of a buffer also stops transient signals from propagating backwards from the multiplexer to the transducer DaqBoard 3000USB Series boards do not have a buffer for each analog input channel due to power restrictions Crosstalk is particularly troublesome when measuring high amplitude signals 10V along with low level signals 100mV All temperature measurements are low level signals that use the 100mV range of the boards If an acquisition s scan group includes both high level signals and low level signals here are some tips on how to reduce the amount of crosstalk e Use as much oversampling as possible e Within the scan group group high level signals together group low level signals together e Place a shorted channel in the scan group between the high level signals and the low level signals The shorted channel should have the same gain as the last high level signal This may allow for a faster scan rate with less oversampling Oversampling and Line Cycle Rejection The DaqBoard 3000USB Series boards allow for oversampling and line c
111. ing 2 mV offset Noise 2 mV RMS 2 Single Channel Analog Software Trigger Any analog input channel including any of the analog expansion channels can be selected as the software trigger channel If the trigger channel involves a calculation such as temperature then the driver automatically compensates for the delay required to obtain the reading resulting in a maximum latency of one scan period Input Signal Range Anywhere within the range of the selected trigger channel Trigger Level Programmable 16 bit resolution including window triggering Latency One scan period max 3 Single Channel Digital Trigger A separate digital input is provided for digital triggering Input Signal Range 15V to 15V Trigger Level TTL Minimum Pulse Width 50 ns high 50 ns low Latency 100 ns typical 1 1 us max 4 Digital Pattern Triggering 8 or 16 bit pattern triggering on any of the digital input ports Programmable for trigger on equal above below or within outside of a window Individual bits can be masked for don t care condition Latency One scan period max 5 Counter Totalizer Triggering Counter totalizer inputs can trigger an acquisition User can select to trigger on a frequency or on total counts that are equal above below or within outside of a window Latency One scan period max 6 Software Triggering Trigger can be initiated under program control 7 Multi Channel Triggering Up to 16 channels can be used to g
112. ing screw terminal connections for all of the board s I O Includes mounting stand offs see chapter 2 for details External Power Supply TR 2 120VAC to 9VDC 1A Rack Mount Kit for TB 100 Rack3 Kit for mounting the TB 100 termination board to a rack DBK215 Termination Module Includes 16 BNC connectors and internal screw terminals DBK215 connects to the DaqBoard s 68 pin SCSI connector via a CA G55 CA 56 or CA 56 6 cable CA G55 68 conductor ribbon expansion cable Can be used to connect a DaqBoard 3000 Series board to a TB 100 or DBK215 Cable length 3 ft CA G56 68 conductor shielded expansion cable Can be used to connect a DaqBoard 3000 Series board to a TB 100 or DBK215 Cable length 3 ft CA G56 6 68 conductor shielded expansion cable Can be used to connect a DaqBoard 3000 Series board to a TB 100 or DBK215 Cable length 6 ft CA 179 1 USB Cable 1 meter CA 179 3 USB Cable 3 meters CA 179 5 USB Cable 5 meters CA 248 Ribbon cable 40 pin header to male 37 pin DSUB connector 9 inches in length 7 10 DaqBoard 3000USB Series Specifications 918593 Note Specifications are subject to change without notice Dimensions 4 906 3 519 275 a y R O60 TYP rea 786 e i a i 653 32a SCSI 68 pir ss a i a SCSI 68 pin 7 DIE 100 Note 1 SaS P5 a Note USB2 EXT Signal I O 190 PWR sa lesi 342 AG 156 TYF 780 5 730 E PLESI dr ap Jo 16 o ay 2 344
113. ins 2 TB3 is associated with J5 odd pins 21 through 39 on the main board through 20 on the main board Regarding Analog Input Channels for DaqBoard 3001USB and DaqBoard 3005USB Single Ended only analog channels 0 through 15 apply Differential only analog channels 0 through 7 apply Regarding Analog Input Channels for DaqBoard 3031USB and DaqBoard 3035USB Single Ended analog channels 0 through 63 apply Differential analog channels 0 through 31 apply Continued DaqBoard 3000USB Series User s Manual 927593 Connections amp Pinouts 2 9 TT l b l 7 n Analog Common a _Analog Common CH 32 Analog Analog Common DI s im Il CH 36 Analog CH 40 Analog CH 52 Analog d n if CH 44 Analog CH 33 Analog CH 60 Analog i dl CH 37 Analog CH 41 Analog CH 53 Analog I ja h d CH 45 Analog Analog Common CH 61 Analog E g Analog Common CH 34 Analog CH 54 Analog J d d p CH 38 Analog CH 42 Analog CH 62 Analog d r i i CH 46 Analog Analog Common Analog Common il m i CH 39 Analog CH 35 Analog CH 55 Analog l i nai CH 47 Analog CH 43 Analog TB8 TB7 TB5 TB8 is associated with J6 even pins 22 through 40 on the main board TB5 is associated with J6 odd pins TB7 is associated with J6 odd pins 21 through 39 on the main board 1 through 19 on the main board TB 101 Differential Connections 32 Differential Channels ANALOG CHANNELS ANALOG CHANNELS Channel Channel
114. installation you should refer to the electronic documents that were automatically installed onto your hard drive as a part of product support The default location is in the Programs group which can be accessed from the Windows Desktop You should keep your DaqBoard 3000USB serial number and board type e g 3001USB 3005USB etc as well as any authorization codes if applicable with this document Space is provided below for recording up to 4 board numbers Board serial numbers and board types are clearly visible on the boards Board Type Serial Number Board Type Serial Number Boara Boards Bord Boar Take ESD precautions packaging proper handling grounded wrist strap etc Use care to avoid touching board surfaces and onboard components Only handle boards by their edges or ORBs if applicable Ensure boards do not come into contact with foreign elements such as oils water and industrial particulate Reference Note Adobe PDF versions of user manuals will Minimum System automatically install onto your hard drive as a part of Requirements product support The default location is in the Programs group which can be accessed from the Windows Desktop Pentium P3 Processor 500 MHz Refer to the PDF documentation for details regarding both Windows Operating System hardware and software Note that hardcopy versions of the RAM 128 Mbytes manuals can be ordered from the factory USB Port Manuals ca
115. ion Detect Signal Below Limit A True When Channel 5 analog input voltage is below the limit A for Channel 5 update DAC1 with Output Value 0 0V False When the above stated condition is false update DAC1 with the Output Value of minus 1 0V Within Window True When Channel 4 analog input voltage is within the window Between Limit A update P2C with 70h and Limit B for Channel 4 False When the above stated condition is false Channel 4 analog input voltage is outside the window n P2C with 30h 5 Analog Input Voltage Limit A for Channel 5 DACI l i menta le ia E wane ac die wee 5270 I I I I I Detection ec i 1 0V for Channel 5 Limit A 32767 for Channel 4 Limit B for Channel 4 P2C Detection Signal for Channel 4 Analog Inputs with Setpoints Update on True and False DaqBoard 3000 Series User s Manual 887794 Setpoint Configuration for Output Control 6 7 In the example upper portion of the preceding figure the setpoint placed on analog Channel 5 updated DACI with 0 0V The update occurred when Channel 5 s input was less than the setpoint Limit A When the value of Channel 5 s input was above setpoint Limit A the condition of lt A was false and DACI was then updated with minus1 0V Control outputs can be programmed on each setpoint Detection for Channel 4 could be used to update the P2C digital output port with one value 70h in the example when the analog input volta
116. is quadrature encoder modes Counter inputs can be scanned synchronously along with analog and digital scanned inputs based on an internal programmable timer or an external clock source Channels 4 x 32 bit Input Frequency 20 MHz maximum Input Signal Range 5V to 10V Input Characteristics 10 kQ pull up 2000 series resistor 15 kV ESD protection Trigger Level TTL Minimum pulse width 25 ns high 25 ns low Debounce Times 16 selections from 500 ns to 25 5 ms Positive or negative edge sensitive glitch detect mode or debounce mode Time Base Accuracy 50 ppm 0 to 50 C Five Programmable Modes Counter Period Pulsewidth Timing Encoder 1 Counter Mode Options Totalize Clear on Read Rollover Stop at all Fs 16 bit or 32 bit any other channel can gate or decrement the counter 2 Period Mode Options Measure x1 x10 x100 or x1000 periods 16 bit or 32 bit 4 time bases to choose from 20 83 ns 208 3 ns 2 083 us 20 83 us any other channel can gate the period measurement 3 Pulsewidth Mode Options 16 bit or 32 bit values 4 time bases to choose from 20 83 ns 208 3 ns 2 083 us 20 83 us any other channel can gate the pulsewidth measurement 4 Timing Mode Options 16 bit or 32 bit values 4 time bases to choose from 20 83 ns 208 3 ns 2 083 us 20 83 us 5 Encoder Mode Options x1 x2 x4 options 16 bit or 32 bit values Z channel clearing of the counter any other channel can gate the counter Multi axis
117. iven below is just a representative of possible options Two Encoders Programming Example Setup SCSI Pin Example Programming Setup Encoder 1 Encoder Mode 1X option 16 bit counter Latch on SOS si so Encoder 1 Period Mode 1Xperiod option 16 bit counter Map channel doesn t gate CTR 1 Ticksize to 20833 ns Pin 4 Encoder 2 A Encoder Mode 2X option 16 bit counter Latch on SOS CTR2 Pin 38 Encoder 2 B Period Mode 1Xperiod option 16 bit counter Map channel doesn t gate CTR3 Ticksize to 2083 3 ns With the encoders connected in this manner there is no relative positioning information available on encoder 1 or 2 since there is no Z signal connection for either Therefore only distance traveled and velocity can be measured for each encoder 5 20 Counter Input Modes 887794 DaqBoard 3000USB Series User s Manual Setpoint Configuration for Output Control 6 Overview Overview 6 1 Detecting Input Values 6 3 Controlling Analog Digital and Timer Outputs 6 4 P2C DAC or Timer Update Latency 6 6 More Examples of Control Outputs 6 7 Detection on an Analog Input DAC and P2C Updates 6 7 Detection on an Analog Input Timer Output Updates 6 8 Using the Hysteresis Function 6 8 Using Multiple Inputs to Control One DAC Output 6 10 The Setpoint Status Register 6 11 DaqBoard 3000 Series boards include a setpoint configuration feature w
118. lick on the cell in the Units column for the channel that is connected to the calibrator The engineering units pull down menu above the grid becomes active 3 Click on the down arrow and select the mx b option This option allows post acquisition mathematical manipulation 4 For the example adjustment enter 0 3 for b The channel under calibration will now read 0 C Note that this adjustment is a mathematical operation only and in no way alters the board s hardware calibration Moreover it operates on a per channel basis with the settings for a given channel having no influence on any other channels DaqBoard 3000 Series Users Manual 897494 Calibration 4 1 4 2 Calibration 897494 DaqBoard 3000 Series User s Manual Counter Input Modes 5 Debounce Tips for Making High Speed Counter Measurements gt 1 MHz 5 1 Debounce Module 5 1 Terms Applicable to Counter Modes 5 5 Counter Options 5 5 Counter Totalize Mode 5 6 Period Mode 5 8 Pulsewidth Mode 5 11 Timing Mode 5 13 Encoder Mode 5 15 Note Each of the high speed 32 bit counter channels can be configured for counter period pulse width time between edges or encoder modes Tips for Making High Speed Counter Measurements gt 1 MHz o Use coax or twisted pair wire Connect one side to Digital Common o Ifthe frequency source is tolerant parallel terminate the coax or twist
119. low In addition use of the DBK215 is briefly discussed Details and specifications for that expansion option are presented in Appendix A DaqBoard 3031USB and DaqBoard 3035USB make use of J5 and J6 two of the four 40 pin headers for analog expansion Pinouts for these and the remaining two headers J7 and J8 are included in this chapter A pinout for a 4 channel terminal board TB7 is also included The last section of the chapter illustrates three scenarios for hardware setup 68 Pin SCSI 40 Pin Headers 4 4 Channel TC Connector P5 J6 J5 J8 J7 Terminal Block TB7 Locations of Signal Connectors DaqBoard 3000USB Series User s Manual 927593 Connections amp Pinouts 2 1 68 Pin SCSI Connecter P5 WARNING Avoid redundant connections Ensure there is no signal conflict between SCSI pins and the associated header pin J5 J6 J7 and J8 Also ensure there is no conflict between TB7 thermocouple connections and the SCSI and or the 40 pin headers Failure to do so could possibly cause equipment damage and or personal injury Pin numbers refer to the 68 pin SCSI female connector located on the DaqBoard Analog input Channel 8 Analog input Channel 1 Analog Common Analog input Channel 10 Analog input Channel 3 Analog Common Analog input Channel 4 Analog Common Analog input Channel 13 Analog input Channel 6 Analog Common Analog input Channel 15 Analog Output 0 Analog Output 1 SE
120. made Example Setpoint Detection on a Counter in Encoder Mode 65535 Limit A Limit B Encoder Position de P2C O l0h 20h 10h 20h 10h Example of a Counter in Encoder Mode The figure above shows values pertaining to a Counter in Encoder Mode The acquisition is started and 16 bit data from the counter streams into the PC at the scan rate The 16 bit counter data is interpreted as the position from an encoder which is connected to the counter inputs The update on True and False mode is being used Thus one value is output on P2C when the position 1s outside of the window a value of 10h in the example and a second value is output on P2C when the position is inside the window a value of 20h in the example In the True and False mode each setpoint has two DAC update values two P2C update values or 2 timer update values One of the two values is used to update the DACs P2C or timers when it is true that the input channel meets the setpoint criteria The second value is used to update the DACs P2C or timers when the condition is false 1 e when the setpoint criteria is not met By software default P2C comes up as a digital input If you want the P2C signal to be a digital output in some initial state before an acquisition is started and P2C is to be updated by set point criterion then you must do an asynchronous write to P2C before the acquisition is started The initial value will only be output if the asy
121. meter thermocouple wire that is instrument grade Small diameter thermocouple wire will have less effect on the thermocouple junction at the terminal block as less heat will be transferred from the ambient environment to the junction o Make sure the board is mounted on a flat surface o Ifthe unit will have a sustained ambient operating environment outside of the 20 C to 30 C range consider autozero mode as a way to reduce the effects of offset drift Performing a Y MX B adjustment at a desired ambient temperature can also be done Make sure the unit has stabilized for at least 60 minutes o Be careful to avoid loading down the digital outputs or DAC outputs too heavily gt 1 mA Heavy load down will cause significant heat generation inside the unit and increase the CJC thermistor error Signal Modes and System Noise 886994 Appendix B System Noise Averaging Laboratory and industrial environments often have multiple sources of electrical noise An AC power line is a source of 50 60 Hz noise Heavy equipment air conditioners elevators pumps etc can be a source of noise particularly when turned on and off Local radio stations are a source of high frequency noise and computers and other electronic equipment can create noise in a multitude of frequency ranges Thus an absolute noise free environment for data acquisition is not realistic Fortunately noise reduction techniques such as averaging filtering differential vol
122. mocouple wire is standardized color coded and polarized as noted in the following table Thermocouple Standards T C Lead to Lead to Type Channel High Channel Low Boi 8 Thermocouples output very small voltages and long thermocouple leads can pickup a large amount of noise If desired noise reduction can be achieved through the use of shielded thermocouples and or averaging You can minimize the effect of noise by 1 using shielded thermocouples see Shielding page B 3 2 averaging readings see Averaging page B 4 3 employing both of these practices B 2 Signal Modes and System Noise 886994 Appendix B Shielding Using shielded TC wire with the shield connected to analog common will result in further noise reduction DaqBoard 3000USB Series boards have one analog common screw terminal on TB7 and have several analog common pins on the headers see Chapter 2 pinouts You can connect the shield of a shielded thermocouple to one of the analog commons When this connection is made the shield at the other end of the thermocouple is to be left unconnected ends will result in a ground loop TC Common Mode The maximum common mode voltage for a DaqBoard 3000USB board is 10 volts Common mode voltage is the DC or AC voltage signal that is applied equally to both sides of a differential input Since thermocouples are measured using the 100 mV range their maximum common mode voltage is 2 1 volts If a thermo
123. mode where their output level is dependent on whether an associated analog digital or counter input is above or below a user specified limit condition When used to generate waveforms the D As can be clocked in several different modes Each D A can be separately selected to be clocked from one of the following sources o Asynchronous Internal Clock The on board programmable clock can generate updates ranging from 19 hours to 1 MHz independent of any acquisition rate o Synchronous Internal Clock The rate of analog output update can be synchronized to the acquisition rate derived from 1 MHz to once every 19 hours o Asynchronous External Clock A user supplied external input clock can be used to pace the D A entirely independent of analog inputs o Synchronous External Clock A user supplied external input clock can pace both the D A and the analog input DaqBoard 3000USB Series User s Manual 988093 Device Overviews 1 13 Digital Inputs and Outputs Twenty four TTL level digital I O lines are included in each of the DaqBoard 3000USB Series boards Digital I O can be programmed in 8 bit groups as either inputs or outputs and can be scanned in several modes see Input Scanning Ports programmed as input can be part of the scan group and scanned along with analog input channels or can be asynchronously accessed via the PC at any time including when a scanned acquisition is occurring Two synchronous modes are supported when digital i
124. n 65535 turns the timer off In Asynchronous Write 65535 results in a timer output frequency of 15 259 Hz There are 2 timer outputs that can generate different square waves The timer outputs can be updated asynchronously at any time Both timer outputs can also be updated during an acquisition as the result of setpoints applied to analog or digital inputs See the section on pattern detection setpoints for more information and examples 1 16 Device Overviews 988093 DaqBoard 3000USB Series User s Manual Multiple DaqBoard 3000USB Boards When multiple boards are used they can be operated synchronously This is done by designating one board as the master The other boards slaves are synchronized to the master by the pacer clock which is externally routed to the designated slave boards For two or more boards to be operated synchronously 1 Use coax or twisted pair wire to either a connect the APCR signals together or b connect the DPCR signals together 2 Connect Digital Common of each board to one of the twisted pairs or to the shield of the coax Software Included with the 3000 Series is a complete set of drivers and example programs for the most popular programming languages and software packages Driver support includes Visual Basic C C LabVIEW DASYLab and MATLAB DaqCOM provides Windows basedActiveX COM based programming tools for Microsoft VisualStudio and VisualStudio NET Also included
125. n all scenarios a CA 179 x USB cable is used to connect the 3000USB Series board to a USB2 0 port on the host PC Any of the following 68 conductor expansion cables can be used to connect the DBK215 module option the SCSI connector CA G55 3 feet ribbon cable CA G56 3 feet shielded expansion cable CA G56 6 6 feet shielded expansion cable IG 10 936993 DaqBoard 3000USB Series Installation Guide WARNING Turn off power to all devices connected to the system before making connections Electrical shock or damage to equipment can result even under low voltage conditions The discharge of static electricity can damage some electronic components Semiconductor devices are especially susceptible to ESD damage You should always handle components carefully and you should never touch connector pins or circuit components unless you are following ESD guidelines in an appropriate ESD controlled area Such guidelines include the use of properly grounded mats and wrist straps ESD bags and cartons and related procedures DaqBoard 3031USB and DaqBoard 3035USB make use of J5 and J6 two of the four 40 pin headers for analog expansion Pinouts for these and the remaining two headers J7 and J8 are included in this section A pinout for a 4 channel terminal board TB7 is also included 68 Pin SCSI 40 Pin Headers 4 4 Channel TC Connector J6 J5 J8 J7 Terminal Board OPRET Mites thai Malle ti Active LED
126. n also be read directly from the data 1198 6 Recommended acquisition CD via the View PDFs option on the splash screen or from our web site Power Consumption per board Power Consumption Typical TR 2 Power Adapter 3005USB 2000 mW Optional A power adapter TR 2 will be required if the USB port cannot supply adequate power USB2 ports are by USB2 standards required to supply 2500 mW nominal at 5V 500 mA DaqBoard 3000USB Series Installation Guide 936993 IG 3 1 Install Software IMPORTANT Software must be installed before installing hardware a Place the Data Acquisition CD into the CD ROM drive Wait for PC to auto run the CD This may take a few moments depending on your PC If the CD does not auto run use the Desktop s Start Run Browse feature and run the Setup exe file b After the intro screen appears follow the screen prompts c After successful installation turn off the computer and proceed with the following section Connect Signal Lines and Hardware 2 Connect Signal Lines and Hardware This section presents three examples of hardware setup Other scenarios are possible for example using a TB 100 and also using one CA 248 cable Also note that a TR 2 power supply will be needed when there is insufficient power from the USB port However you can use a TR 2 in any scenario Aside from using a TR 2 if needed another important part of the setup is to avoid making redundant sig
127. nal connections and to use approved ESD precautions Pinouts have been included in this installation guide The discharge of static electricity can damage some electronic components Semiconductor devices are especially susceptible to ESD damage You should always handle components carefully and you should never touch connector pins or circuit components unless you are following ESD guidelines in an appropriate ESD controlled area Such guidelines include the use of properly grounded mats and wrist straps ESD bags and cartons and related procedures The Power LED Bottom LED blinks during device detection and initialization then remains on solid as long as the module has power If there is insufficient power the LED will go off and a TR 2 power adapter will be needed Note that when the board is first powered there will likely be a momentary delay before the Power LED begins to blink or come on solid If using a TR 2 be sure to supply power from it to the DaqBoard 3000USB Series board before connecting the USB cable to the computer This allows the USB board to inform the host computer upon connection of the USB cable that the unit requires minimal power from the computer s USB port IG 4 936993 DaqBoard 3000USB Series Installation Guide 4 906 o i 3 519 275 786 i pesta TENEN AE f 100 Nbte 1 oe ps ii w PWR 403 342 213 8 156 TYP 780 sus 7 PLCS e W57 dG
128. nce R forming a voltage divider This divider distorts the voltage being read at the analog to digital converter The actual voltage read is represented by the equation Vanc Vr x Ri R Ri The input impedance R of most ADCs is at least 1 MQ low source impedance R usually presents no problem Some transducers such as piezoelectric types have high source impedance and should therefore be used with a charge sensitive amplifier of low output impedance As described in the following paragraphs multiplexing can greatly reduce the effective input impedance of an analog to digital converter 886994 Signal Modes and System Noise B 5 Crosstalk Crosstalk is a type of noise related to source impedance and capacitance in which signals from one channel leak into an adjacent channel resulting in interference or signal distortion The impact of source impedance and stray capacitance can be estimated by using the following equation T RC Where T is the time constant R is the source impedance and C is the stray capacitance High source transducer impedance can be a problem in multiplexed A D systems When using more than 1 channel the channel input signals are multiplexed into the A D The multiplexer samples one channel and then switches to the next channel A high impedance input interacts with the multiplexer s stray capacitance and causes crosstalk and inaccuracies in the A D sample A solution to high source impedance
129. nchronous write to P2C has been performed DaqBoard 3000 Series User s Manual 887794 Setpoint Configuration for Output Control 6 5 P2C DAC or Timer Update Latency Setpoints allow DACS timers or P2C digital outputs to be updated very quickly Exactly how fast an output can be updated is determined by the following three factors o scan rate o synchronous sampling mode o type of output to be updated Example We set an acquisition to have a scan rate of 100 kHz This means each scan period is 10us Within the scan period we will sample six analog input channels These are shown in the following figure as Channels 1 through 6 The ADC conversion occurs at the beginning of each channel s 1us time block ili 1 2 3 4 5 6 1 2 3 4 5 4 ps Sus i 10us Start of Scan Start of Scan Example of P2C or DAC Latency If we apply a setpoint on analog input Channel 2 then that setpoint will get evaluated every 10us with respect to the sampled data for Channel 2 Due to the pipelined architecture of the Analog to Digital Converter system the setpoint cannot be evaluated until 2us after the ADC conversion In the example above the P2C digital output port can be updated no sooner than 2us after Channel 2 has been sampled or 3us after the start of the scan This 2us delay is due to the pipelined ADC architecture The setpoint is evaluated 2us after the ADC conversion
130. ncoders pulse generators limit switches proximity switches and magnetic pick ups As with all other inputs to the boards the counter inputs can be read asynchronously under program control or synchronously as part of an analog and digital scan group based on a programmable internal timer or an external clock source The boards support quadrature encoders with up to 2 billion pulses per revolution 20 MHz input frequencies and x1 x2 x4 count modes With only A phase and B phase signals 2 channels are supported With A phase B phase and Z index signals 1 channel is supported Each input can be debounced from 500 ns to 25 5 ms total of 16 selections to eliminate extraneous noise or switch induced transients Encoder input signals must be within 5V to 10V and the switching threshold is TTL 1 3V Timer Outputs Two 16 bit timer outputs are built into every 3000 series board Each timer is capable of generating a different square wave with a programmable frequency in the range of 16 Hz to 1 MHz Example 6 Timer Outputs Timer outputs are programmable square waves The period of the square wave can be as short as lus or as along as 65536 us See the table below for some examples Timer Output Frequency Related Equations 0 OMY ss i iO KH 999 1 kHz 4999 200 Hz Divisor 1 MHz F 1 9999 100 Hz F 1 MHz Divisor 1 65535 Turns Timer OFF The divisor range is 0 to 65535 For Setpoint Operatio
131. nnel is low the counter is disabled but holds the count value The mapped channel can be any other input channel PULSEWIDTH OPT6 This allows the mapped channel s pulsewidth to be measured instead of the input channel The mapped channel can be any other input channel post debounce This option allows the counter to be used with any other input channel post debounce If the channel s input is used elsewhere for example gating another counter the counter for this channel does not need to go unused Pulsewidth and Timing mode Accuracy The 3000USB Series board has the ability to measure the pulsewidth of an input and the time between any two edges on any two inputs The time ranges are similar to those shown for period mode except that averaging is not available The ranges given below reflect this Upper 16 bits of the 32 bit Counter Lower 16 bits of the 32 bit Counter Range S Ticksize nS Averaging Range S Ticksize nS Averaging Option Option 800 80000 20833 333 20833 333 80 8000 2083 333 1m 100m 8 800 208 333 100u 10m 800m 80 20 833 Pulsewidth and Time Ranges for a 16 bit Value Sampling error is less than 0 21 Full 32 bit Counter Range S Ticksize nS Averaging Option 10m 80000 20833 333 1 1m 8000 2083 333 100u 800 208 333 20 833 Pulsewidth and Time Ranges for a 32 bit Value Sampling error is less than 0 21 Full 32 bit Counter lt 10 ppm Full 32 bit Cou
132. not in use Failure to do so could possibly cause equipment damage and or personal injury AGND ACHO The TB7 terminal block can be used to connect up to 4 thermocouples The ACH8 first TC channel makes use of Analog Channel 0 for its positive lead and ACHI Analog Channel 8 for its negative lead The second TC channel uses atid analog Channels 1 and 9 and so on as indicated in the pinout to the left ACH10 ACH3S ACH11 NOSOSO 222 Thermocouples should only be connected in differential mode Appendix B includes additional information KA YYY DaqBoard 3000USB Series devices do not have open thermocouple detection As in all scenarios a CA 179 x USB cable is used to connect the 3000USB Series board to a USB2 0 port on the host PC Any of the following 68 conductor expansion cables can be used to connect the TB 100 option the SCSI connector CA G55 3 feet ribbon cable CA G56 3 feet shielded expansion cable CA G56 6 6 feet shielded expansion cable DaqBoard 3000USB Series User s Manual 927593 Connections amp Pinouts 2 13 Scenario 3 Using a DBK215 3000USB Series Board CA G56 Cable Power Supply Optional DBK215 Option In this setup a DBK215 BNC Module is connected to the 68 pin SCSI connector via a CA G56 shielded cable However the use of other cables 1s possible as noted below In this example we can also see that 4 thermocouples ar
133. nputs are scanned along with analog inputs o Scanning digital inputs at the start of each scan sequence In this mode the digital inputs are scanned at the start of each scan sequence which means the rate at which they are scanned is dependent on the number of analog input channels and the delay period For example if 8 analog inputs were enabled with a O delay period then the digital inputs in this mode would be scanned at once per 8usec 1 e 125 kHz o Scanning digital inputs synchronously with every analog input channel In this synchronous mode the enabled digital inputs are scanned synchronously with every analog input channel So in the preceding example the digital inputs would be scanned at once per usec or 1 MHz If no analog inputs were being scanned the digital inputs could be scanned at up to 4 MHz Digital Outputs and Pattern Generation Digital outputs can be updated asynchronously at anytime before during or after an acquisition Two of the 8 bit ports can also be used to generate a 16 bit digital pattern at up to 4 MHz In the same manner as analog output the digital pattern can be read from PC RAM or a file on the hard disk Digital pattern generation is clocked in the same four modes as described with analog output The ultra low latency digital output mode allows a digital output to be updated based on the level of an analog digital or counter input In this mode the user associates a digital output bit with a specific inp
134. nter lt 1 ppm Range S Ticksize nS Averaging Range S Ticksize nS Averaging 2 80000 20833 333 20 80000 200m 8000 2083 333 2 8000 20m 800 208 333 200m 800 20 833 20m 80 High Accuracy Pulsewidth and Time Ranges for a 32 bit Value that has little sampling error lt 10ppm lt Ippm 5 12 Counter Input Modes 887794 DaqBoard 3000USB Series User s Manual Timing Mode This mode provides a means of measuring time between two subsequent events 1 e the edge of one channel with respect to the edge of another channel The edge selection is done in each channel s debounce setup Whenever the time measurement is latched from the counter the counter is immediately cleared and enabled for accepting the subsequent time period which starts with the next edge on the main channel Channel Input Post Debounce 4 Channel Inputs 1 Post Debounce a Timing Mode _ 4Asynchronous Mapped Edge Deer A Read Strobes Channel Timing Mode There is one asynchronous read strobe for each of the four counter channels Note 1 Tick sizes are 20 83ns 208 3ns 2083ns and 20833ns derived from the 48 MHz system clock DaqBoard 3000USB Series User s Manual 887794 Counter Input Modes 5 13 An Example of Timing Mode The following example represents one channel in timing mode The time desired is between the rising edge on the input channel and the falling edge on the map
135. o The default location for PDF documentation is in the Programs group which can be accessed from the Windows Desktop o The PDFs can also be accessed directly from the Data Acquisition CD via the lt View PDFs gt button on the opening splash screen o The PDFs can also be accessed from our web site When you call please have the following information available e Hardware model numbers e Serial Numbers e Software version numbers for DaqView e Windows Operating System e Type of computer and features When returning equipment use original shipping containers or equivalent to prevent shipping damage In addition to the above information please be sure to include e The return authorization number we provide you with this number after you contact us e The name and phone number of an individual who can discuss the problems encountered e Any special instructions regarding return shipping e A copy of troubleshooting notes and comments on tests performed and all problem related conditions IOtech Inc 25971 Cannon Road Cleveland OH 44146 1833 Phone 440 439 4091 Fax 440 439 4093 e mail Product Information sales iotech com e mail Technical Support productsupport iotech com Internet http www iotech com DaqBoard 3000USB Series Installation Guide 936993 IG 19 IG 20 936993 DaqBoard 3000USB Series Installation Guide Device Overviews 1 Block Diagrams 1 1 Connections 1 3 Product Features
136. on any combination of analog digital and or counter input however not on temperature measurements In the multi channel triggering mode the maximum latency is one scan period Triggering can occur based on a logical and or a logical or of the multiple trigger conditions For example a trigger condition could be programmed to occur for when the following three conditions are met a three analog input channels each reach their respective trigger level b AND two digital inputs are in the specified logic state c AND three counters exceed a specified frequency Stop Trigger Any of the software trigger modes previously described including scan count can be used to stop an acquisition Thus an acquisition can be programmed to begin on one event such as a voltage level and then can stop on another event such as a digital pattern Pre Triggering and Post Triggering Modes Six modes of pre triggering and post triggering are supported providing a wide variety of options to accommodate any measurement requirement When using pre trigger the user must use software based triggering to initiate an acquisition The six modes are o No pre trigger post trigger stop event This the simplest of modes acquires data upon receipt of the trigger and stops acquiring upon receipt of the stop trigger event o Fixed pre trigger with post trigger stop event In this mode the user specifies the number of pre trigger readings to be acquired
137. on cable 2 14 Connections amp Pinouts 927593 DaqBoard 3000USB Series User s Manual CE Compliance 3 Overview ce Overview 3 1 CE Standards and Directives 3 1 Safety Conditions 3 2 Emissions Immunity Conditions 3 2 CE standards were developed by the European Union EU dating from 1985 and include specifications both for safety and for EMI emissions and immunity Now all affected products sold in EU countries must meet such standards Although not required in the USA these standards are considered good engineering practice since they enhance safety while reducing noise and ESD problems In contracted and in house testing most Daq products met the required specifications Those products not originally in compliance were redesigned accordingly In some cases alternate product versions shield plates edge guards special connectors or add on kits are required to meet CE compliance CE compliant products bear the CE mark and include a Declaration of Conformity stating the particular specifications and conditions that apply The test records and supporting documentation that validate the compliance are kept on file at the factory CE Standards and Directives The electromagnetic compatibility EMC directives specify two basic requirements 1 The device must not interfere with radio or telecommunications 2 The device must be immune from electromagnetic interference from RF transmitters et
138. on the main board TB10 is associated with J7 even pins 2 through 20 on the main board Digital GND_ Digital GND _CH B3 Digital XAPCR Note 1 J Sh Digita GND PP _CHB2 Digital XTTLTRG i XDPCR Note 2 CH BI Digital Analog Common i bl i Analog Common al ii CH BO Digital Self Calibration al i SGND tia Digital GND Analog Common E amp Analog Common di CH A3 Digital XDACI Note 3 amp PI XDAG3 Note 3 ie CH A2 Digital XDACO Note3 e le XDAC2 Note 3 i CHAI Digital Analog Common i a i 5 j Analog Common a i CH A0 Digital 13v ee mi 13V all Digital GND es 7 ae TB13 TB14 TB9 TB10 is associated with J7 odd pins 1 through 19 on the main board TB13 is associated with J8 odd pins 1 through 21 on the main board TB14 is associated with J8 even pins 2 through 22 on the main board Note 1 XAPCR is A D Pacer Clock I O Note 2 XDPCR 1s DAC Pacer Clock I O Note 3 XDACO 1 2 3 analog outputs only apply to the DaqBoard 3001 USB and 3031USB model boards 2 8 Connections amp Pinouts 927593 DaqBoard 3000USB Series User s Manual WARNING Before connecting TC wires ensure that the associated analog channels are not in use Failure to do so could possibly cause equipment damage and or personal injury The analog channels associated with thermocouples are TB1 Channels 0 1 2 and 3 TB2 Channels 8 9 10 and 11 CH8 Analog
139. ons remove the Hex Nuts from the 5 existing standoffs B Thread the new ST 6 7 standoffs onto the existing standoffs Tighten snug by hand C Align the TB 101 with the new standoffs and position the board in place D Using the Hex Nuts removed in Step A secure the TB 101 to the new standoffs Tighten snug Over tightening will damage the board New ST 6 7 anean ne C 1 of 5 Be vt TB 101 TerminalBoard Original FA A Hex Nut AUIIIIIIININIH free DaqBoard 3000USB ti series Board Original Standoff 1 of 5 Connections amp Pinouts 2 7 Thermocouple Wires Connected to TB7 i ee LA LA TB 101 Mounted to DaqBoard 3000USB DaqBoard 3000USB MMI i i ae eee aa TB 101 Prior to mounting CA 179 x USB Cable i TB 101 Pinouts Digital GND Expansion 5V XAPCR Note 1 CH CO Digital m CH C4 Digital CH A4 Digital CH C1 Digital cn CH CS Digital CH AS Digital CH C2 Digital al CH C6 Digital CH A6 Digital CH C3 Digital CH C7 Digital CH A7 Digital Digital GND E Timer 1 TMR1 TTLTRIG Timer 0 TMRO i Counter 1 CNT1 CH B4 Digital Counter 0 CNTO Il d i i Counter 3 CNT3 CH B5 Digital Counter 2 CNT2 Ila i Digital GND CH B6 Digital Digital GND Digital GND CH B7 Digital TBl1 TB12 TB10 TB11 is associated with J7 odd pins 21 through 39 on the main board TB12 is associated with J7 even pins 22 through 40
140. orced update values Each update value can drive one DAC one timer or the P2C digital output port In hysteresis mode the outputs do not change when the input values are inside the window There is one update value that gets applied when the input values are less than the window and a different update value that gets applied when the input values are greater than the window Update on True and False uses two update values There is one update value that gets applied when the specified criteria is met True and a different update value that gets applied when the specified criteria is not met False The update values can drive DACs P2C or timer outputs Example Setpoint Detection on a Totalizing Counter In the following figure Channel 1 is a counter in totalize mode Two setpoints are used to define a point of change for Detect 1 as the counter counts upward The detect output will be high when inside the window greater than Limit B the low limit but less than Limit A the high limit In this case the Channel 1 setpoint is defined for the 16 lower bits of channel 1 s 32 bit value The P2C digital output port could be updated on a True condition the rising edge of the Detection signal Alternately one of the DAC output channels or timer outputs could be updated with a value int re re BISI At this point we can update P2C or DACs Limit A lt LimitB We n 0 Logica i Chutpui Detection Channel 1 in Totalizing Coun
141. ords Reference Note This type of note identifies the location of additional information that may prove helpful References may be made to other chapters or other documentation Tips provide advice that may save time during a procedure or help to clarify an issue Tips may include additional reference Specifications and Calibration Specifications are subject to change without notice Significant changes will be addressed in an addendum or revision to the manual As applicable IOtech calibrates its hardware to published specifications Periodic hardware calibration is not covered under the warranty and must be performed by qualified personnel as specified in this manual Improper calibration procedures may void the warranty Quality Notice IOtech has been an ISO 9001 registered firm since 1996 Prior to shipment we thoroughly test our products and review our documentation to assure the highest quality in all aspects In a spirit of continuous improvement IOtech welcomes your suggestions iii Your order was carefully inspected prior to shipment When you receive your system carefully unpack all items from the shipping carton and check for physical signs of damage that may have occurred during shipment Promptly report any damage to the shipping agent and your sales representative Retain all shipping materials in case the unit needs returned to the factory Note Using this equipment in ways other than described in this manual
142. pe of Action DaqBoard 3000 Series User s Manual None Update P2C see note Update DACx Update Tlmerx By software default P2C comes up as a digital input If you want the P2C signal to be a digital output in some initial state before an acquisition is started and P2C is to be updated by set point criterion then you must do an asynchronous write to P2C before the acquisition is started The initial value will only be output if the asynchronous write to P2C has been performed When using setpoints with triggers other than immediate hardware analog or TLL the setpoint criteria evaluation will begin immediately upon arming the acquisition TIP It is recommended that the Equal to Limit A mode only be used with counter or digital input channels as the channel source If similar functionality is desired for analog channels then the Inside Window mode should be used 887794 Setpoint Configuration for Output Control 6 3 Controlling Analog Digital and Timer Outputs Each setpoint can be programmed with an 8 bit digital output byte and corresponding 8 bit mask byte When the setpoint criteria has been met the P2C digital output port can be updated with the given byte and mask Alternately each setpoint can be programmed with a 16 bit DAC update value any one of the 4 DAC outputs can be updated in real time Any setpoint can also be programmed with a timer update value In hysteresis mode each setpoint has two f
143. pect to common ground Encoder wiring diagrams and example setup tables are included in the following pages refer to them as needed For Single ended Connections For single ended applications the connections made from the encoder to the 3000USB Series board are as follows e Signals A B and Z connect to the Counter Inputs on 3000USB Series board e Each encoder ground connects to GND e 5 Vis available on the 68 pin SCSI connector for powering encoders Differential applications are not supported Series board s counter input terminal blocks A pullup resistor can be placed between any input Q For Open Collector Outputs External pullup resistors can be connected to the 3000USB channel and the encoder power supply Choose a pullup resistor value based on the encoder s output drive capability and the input impedance of the 3000USB Series board Lower values of pullup resistors will cause less distortion but also cause the encoder s output driver to pull down with more current DaqBoard 3000USB Series User s Manual 887794 Counter Input Modes 5 17 Wiring for 1 Encoder The following figure illustrates connections for one encoder to a 68 pin SCSI connector on a DaqBoard 3000USB Series board The A signal must be connected to an even numbered channel and the associated B signal must be connected to the next higher odd numbered channel For example if A were connected to CTRO B would be conne
144. ped channel Zeroes are returned in the scan until one complete time measurement has been taken At that point the value time in ticks is latched and logged by the 3000USB Series board until the next time measurement has been completed Rising edges on the input channel will clear the counter and falling edges on the mapped channel will latch the output of the counter at that time If the scan period is much slower than the rate of time frames coming available on the two channels then the data will miss some time frames The scan period can be decreased to capture more time frames The data returned is interpreted as time measured in ticks This data represents the number of ticksize intervals counted during the timing measurement There are four timebase settings 20 833 ns 208 33 ns 2 083 us and 20 83 us These are often referred to as tick sizes The 3000USB Series board uses a 48 MHz 50 ppm oscillator as a timing source If the input signal has a poor slew rate the timing mode will provide variant results 4 dependant upon the input switching threshold Channel Input __ GL LL Mapped Channel Input Li LR iL LIL Example of One Channel in Timing Mode TIMING OPT2 This determines whether the time is to be measured with a 16 bit Counter Low or 32 bit Counter High counter Since time measurements always have the stop at the top option enabled this option dictates whether the measurement has a range of 0 to 65535 ticks or
145. quired to supply 2500 mW 73031USB 3400 mW nominal at 5V 500 mA 3035USB 2400 mW Power Output for DaqBoard 3000 USB Output Power Tolerance Power Allowed when Power Allowed when Supply Voltage using USB Power using External Power 5 V 20 P5 19 47 22 J8 25 2 MA 10 mA Environment Operating Temperature 30 to 70 C Storage Temperature 40 to 80 C Relative Humidity 0 to 95 non condensing Communications Speed USB 2 0 high speed mode 480 Mbps if available otherwise USB1 1 full speed mode 12 Mbps Acquisition Data Buffer 1 MSample Vibration MIL STD 810E Category 1 and 10 Signal I O Connectors see chapter 2 for pinouts 68 pin standard SCSI type III female connector P5 Four 40 pin headers J5 J6 J7 J8 AMP 2 103328 0 Option TB 100 An optional TB 100 terminal board can be connected to the 3000USB board s 68 pin SCSI connector via a CA G55 CA 56 or CA 56 6 cable The TB 100 provides access to 16SE 8DE analog inputs up to 4 analog outputs 24 digital I O and all counter timers When using TB 100 with 3035 or 3031 models the remaining 48SE 24DE are accessed through 40 pin headers see chapter 2 for details Option TB 101 An optional TB 101 screw terminal board can be mounted directly to a 3000USB Series board providing screw terminal connections for all of the board s I O see chapter 2 for details Temperature Measurement Connector see chapter 2 for pinouts 4 channel TC screw
146. r are 24 27 29 32 59 64 and 67 2 6 Connections amp Pinouts 927593 DaqBoard 3000USB Series User s Manual TB 101 Terminal Board Option The TB 101 Terminal Board can be used to connect all signal I O lines that are associated with a DaqBoard 3000USB Series board TB 101 plugs into the DaqBoard s four 40 pin headers J5 J6 J7 and J8 For purpose of orientation the notch following figure upper left fits over TB7 on the DaqBoard 3000USB ANALOG OUTPUTS XOACI3 0 OAL PALEN CLOCK XOVE COUNTER INPUTS ONTL JO TIMER OUTPUTS Treit1 0 EARTH GROUNO EGNO DIGITAL COMON GND ANALOG CONMON AGND WARNING Turn off power to all devices connected to the system before making connections Electrical shock or damage to equipment can result even under low voltage conditions Avoid redundant connections Ensure there is no signal conflict between SCSI pins and the 15 terminal blocks of TB 101 which relate to J5 J6 J7 and J8 on the main board Also ensure there is no conflict between the main board s TB7 connector and the SCSI and or the Terminal blocks of TB 101 Failure to do so could possibly cause equipment damage and or personal injury The discharge of static electricity can damage some electronic components Semiconductor devices are especially susceptible to ESD damage You should always handle components carefully and you should never touch connector pins or circuit components unless you are following ESD
147. r input Pattern Triggering The user can specify a 16 bit digital pattern to trigger an acquisition including the ability to mask or ignore specific bits Software Based Channel Level Triggering This mode differs from the modes just discussed because the readings analog digital or counter are interrogated by the PC in order to detect the trigger event Triggering can also be programmed to occur when one of the counters reaches exceeds or 1s within a programmed window Any of the built in counter totalizer channels can be programmed as a trigger source Triggers can be detected on scanned digital input channel patterns as well Normally software based triggering results in long latencies from the moment a trigger condition is detected until the instant data is acquired However theDaqBoard 3000USB Series circumvents this undesirable situation by use of pre trigger data Specifically when software based triggering is employed and the PC detects that a trigger condition has occurred which may be thousands of readings after the actual occurrence of the signal the DaqBoard driver automatically looks back to the location in memory to where the actual trigger causing measurement occurred The acquired data presented to the user begins at the point where the trigger causing measurement occurs The maximum latency in this mode is equal to one scan period Multi Channel Triggering The DaqBoard 3000USB Series board can be configured to trigger
148. r location HOST POWER 01 3 Observe ESD precautions when handling the board and making connections 4 Youdonotneedto remove the cover unless you need to Location of DBK215 s access a terminal block customize an RC filter network Host Power LED or set a BNC channel to Single Ended mode or to Differential mode via Jumpers J0 through J7 Information regarding these tasks follows shortly 5 DBK215 s 68 pin SCSI P5 connector typically connects to a board s SCSI connector via a CA G55 CA G56 or CA G56 6 cable o CA GS5 is a 3 foot long cable CA GS6 is a 3 foot long shielded cable CA G56 6 is a 6 foot long shielded cable Appendix A 886994 DBK215 A 3 System Examples Example 1 System with a DaqBoard 3000 Series Board non USB version Front Waw d gt s e Back View POOID CA GSE CA GSG of CA GEE E 66 Conductor Cable CA 266 3 HOM Cable DBK215 and PDQ30 Connection to a DaqBoard 3000 Series Board Notes regarding the above system example 1 Any of three 68 conductor SCSI ribbon cables can be used to connect the DBK215 to the board s SCSI o CA G55 is a 3 foot long cable o CA G56 is a 3 foot long shielded cable o CA G56 6 is a 6 foot long shielded cable 2 Signal lines connect to the DBK215 s front panel BNC connectors or to the internal screw terminal board 3 When signal lines are connected to the DBK215 s terminal blocks instead of the BNC connectors the wires are
149. ry bits into analog signals A DIP switch is a group of miniature switches in a small Dual In line Package DIP Typically users set these switches to configure their particular application The differential mode measures a voltage between 2 signal lines for a single channel Also see single ended mode 887194 G 1 Differential mode voltage ESD Excitation Gain Isolation Linearization Multiplexer MUX Range Sample reading Scan Sequencer Simultaneous Sample and Hold Single ended mode Trigger TTL Unipolar Differential mode voltage refers to a voltage difference between two signals that are referenced to a common point Example Signal 1 is 5 VDC referenced to common Signal 2 is 6 VDC referenced to common If the 5 VDC signal is used as the reference the differential mode voltage is 1 VDC 6 VDC 5 VDC 1 VDC If the 6 VDC signal is used as the reference the differential mode voltage is 1 VDC 5 VDC 6 VDC 1 VDC Electrostatic discharge ESD is the transfer of an electrostatic charge between bodies having different electrostatic potentials This transfer occurs during direct contact of the bodies or when induced by an electrostatic field ESD energy can damage an integrated circuit IC Some transducers e g strain gages thermistors and resistance temperature detectors RTDs require a known voltage or current Typically the variation of this signal through the
150. s the input channel s period Every time the period measurement is latched from the counter the counter is immediately cleared and begins to count the time for the subsequent period If the scan period is a lot slower than the input period the acquired data will be missing some periods To obtain greater resolution you can increase the scan period or use an averaging option see OPT 1 0 The data returned is interpreted as time measured in ticks There are four timebase settings 20 83 ns 208 3 ns 2083 ns and 20833 ns These are often referred to as tick sizes The 3000USB Series board uses a 48 MHz 50 ppm oscillator as a timing source The tick sizes are derived from 1 period 10 periods 100 periods or 1000 periods of the 48 MHz clock 887794 DaqBoard 3000USB Series User s Manual PERIOD OPT 1 0 Determines the number of periods to time per measurement This makes it possible to average out jitter in the input waveform sampling error noise etc There are four options 1 The channel s measurement is latched every time one complete period has been observed 2 The channel s measurement is latched every time that 10 complete periods have been observed The value that gets returned is equal to 10 consecutive periods of the input channel 3 The number returned is 100 consecutive periods 4 The number returned is 1000 consecutive periods PERIOD OPT2 Determines whether the period is to be measured with a 16 bit Co
151. screwdriver The following pages correlate the DBK215 terminal block connectors with the 68 pin SCSI connector Appendix A 886994 DBK215 A 7 Analog I O Correlation to 68 pin SCSI Also see Correlation to BNC Terminations TB13 and TB14 on page DBK215 11 Pin Number and Description Mira ai IA A CH 3 IN Single Ended Mode CH 3 HI IN Differential Mode 3 CH 11 IN Single Ended Mode CH 3 LO IN Differential Mode L FILT CAPLO N A For RC filter networks install a wire jumper between the relevant FILT CAP LO and AGND Note that there is no association between FILT CAP LO and P4 SGND Signal Ground Sense Common reference ground not for general use Pin Number and Description O NIN 2 10 3 W SE CH 4 IN Single Ended Mode CH 4 HI IN Differential Mode Bue 3 SH 5 60 CHSIN Single Ended Mode CHS HI IN Differential Mode E CH 13 IN Single Ended Mode CH 5 LO IN Differential Mode 6 25 CH 6 IN Single Ended Mode CH 6 HI IN Differential Mode 14 58 CH 14 IN Single Ended Mode CH 6 LO IN Differential Mode CH 7 IN Single Ended Mode CH 7 HI IN Differential Mode CH 15 IN Single Ended Mode CH 7 LO IN Differential Mode FILT CAP LO N A For RC filter networks install a wire jumper between the relevant FILT CAP LO and AGND SGND Signal Ground Sense Common reference ground not for general use Pin Number and Description mume 6 TTL
152. tage measurement and shielding are available to reduce noise to an acceptable level Certain acquisition programs apply averaging after several samples have been collected Depending on the nature of the noise averaging can reduce noise by the square root of the number of averaged samples Although averaging can be effective it suffers from several drawbacks Noise in measurements only decreases as the square root of the number of measurements reducing RMS noise significantly may require many samples Thus averaging is suited to low speed applications that can provide many samples Note Only random noise is reduced or eliminated by averaging Averaging does not reduce or eliminate periodic signals Analog Filtering A filter is an analog circuit element that attenuates an incoming signal according to its frequency A low pass filter attenuates frequencies above the cutoff frequency Conversely a high pass filter attenuates frequencies below the cutoff As frequency increases beyond the cutoff point the attenuation of a single pole low pass filter increases slowly Multi pole filters provide greater attenuation beyond the cutoff frequency but may introduce phase time delay problems that could affect some applications Input and Source Impedance Appendix B Analog to Digital Converter As illustrated in the figure to the right the input impedance R of an analog to digital converter combines with the transducer s source impeda
153. tal O Port C Bit 0 Digital Ground Comm ber and Description Conc oeno __ Bieta Ground Common oo BO 14 Dota Pone Bto O OO ooo er gta 0 Por OOO 13 Digita O Port B E e a Digital Pa ooo ee n DaO Pon 8 86 oOo Digital I O Port B Bit 7 The following SCSI Pins connect to Analog Common 24 27 29 32 55 56 59 64 and 67 The following SCSI Pins connect to Digital Common 35 36 40 and 53 Gala p jd Appendix A 886994 DBK215 A 9 Pulse Frequency Correlation to 68 pin SCSI Pin Number and Description N A N A DGND N A Expansion 5 Volt Power Pin Number and Description P3 Digital Port Bit 14 P8 Digital Port Bit 15 Digital Ground Common Digital Ground Common P3 TB2 not used _TB3 Pin Number and Description frog Ta cho onca EXP 0 DAC2 Analog Out Analog DAC 2 Output EXP OT DAC 2 AGND Analog Ground Common intended for use with DACs nme A CH1 DAC1 Analog Out Analog DAC 1 Output vO CLE A O CLK Analog Out Clock External DAC Pacer Clock Input EMP t DAC Internal DAC Pacer Clock Output ESA EXP 1 DAC3 Teint GMD Analog Out Analog DAC 3 Output 15u Pin Number and Description Reserved DGND Digital Ground Common The following SCSI Pins connect to Analog Common 24 27 29 32 55 56 59 64 and 67 The following SCSI Pins connect to Digital Common 35 36 40 and 53 ory eter Tal Nowe dl amp A o
154. ter Mode Inside the Window Setpoint The detection circuit works on data that is put into the acquisition stream at the scan rate This data is acquired according to the pre acquisition setup scan group scan period etc and returned to the PC Counters are latched into the acquisition stream at the beginning of every scan The actual counters may be counting much faster than the scan rate and therefore only every 10 100 or n count will show up in the acquisition data Therefore it is possible to set a small detection window on a totalizing counter channel and have the detection setpoint stepped over since the scan period was too long Even though the counter value stepped into and out of the detection window the actual values going back to the PC may not This is true no matter what mode the counter channel is in 6 4 Setpoint Configuration for Output Control 887794 DaqBoard 3000 Series User s Manual The setting of a detection window must be done with a scan period in mind This applies to analog inputs and counter inputs Quickly changing analog input voltages can step over a setpoint window if not sampled often enough There are three possible solutions for overcoming this problem 1 The scan period could be shortened to give more timing resolution on the counter values or analog values 2 The setpoint window can be widened by increasing Limit A and or lowering Limit B 3 A combination of both solutions 1 and 2 could be
155. terminal block Customizing is as described for BNCA through BNCD above Accessory Wire Kit p n 1139 0800 includes jumper wires and a screwdriver Appendix A 886994 DBK215 A 11 Adding Resistor Capacitor Filter Networks DBK215 pg A 12 WARNING q Disconnect the DBK215 from power and signal sources prior to installing capacitors or resistors Failure to do so could result in damage to equipment Q Ensure wire strands do not short power supply connections to any terminal potential Do not exceed maximum allowable inputs as listed in product specifications There should never be more than 30 V with reference to analog ground AGND or earth ground You must provide strain relief lead slack to all leads leaving the module Use tie wraps not included to secure strain relief Always connect the CHASSIS terminal to earth ground This will maximize static protection If a channel is not associated with a DBK expansion option you can install a customized RC filter network to improve the signal to noise ratio assuming that an unacceptable level of noise exists DBK215 s internal board includes silk screened sockets for installing RC filter networks The following table contains values that are typical for RC filter network components Typical One Pole Low Pass Filter Do not use RC filters in conjunction with additional DBK expansion Values accessories for DBK215 i es ee a Ohms uF Hertz kHz
156. terminal block TB7 Phoenix MPT 0 5 9 2 54 External Power Connector Switchcraft RAPC 712 Power Range 6 to 16 VDC used when USB port supplies insufficient power or when an independent power supply is desired H Over Voltage 20 V for 10 seconds max Note Specifications are subject to change without notice 918593 Specifications DaqBoard 3000USB Series 7 1 Physical Attributes Dimensions 152 4 mm W x 150 62 mm D 6 0 x 5 93 Weight 147 g 0 32 Ibs Analog Inputs Channels 16 single ended or 8 differential Programmable on a per channel basis as single ended or differential 4 differential channels can be assigned to thermocouples Over Voltage Protection 30V without damage Voltage Measurement Speed 1 us per channel Ranges Software or sequencer selectable on a per channel basis 10V 5V 2V 1V 0 5V 0 2V 0 1V Input Impedance 10MQ single ended 20MQ differential Total Harmonic Distortion 80 db typical for 10V range 1 kHz fundamental Signal to Noise and Distortion 72 db typical for 10V range 1 kHz fundamental Bias Current 40pA typical 0 C to 35 C Crosstalk 75 db typical DC to 60 Hz 65 db typical 10 kHz Common Mode Rejection 70 dB typical DC to 1 kHz Maximum Usable Input Voltage Common Mode Voltage Ranges Maximum CMV Vin 0 5 1 2 5 10V 10 5V 0 1 0 2V t DaqBoard 3035USB and DagBoard 3031USB each support a total of 64SE or 32 differential channels Worst Case
157. th digital and analog outputs can respond to analog digital and counter inputs as fast as 2usec Other Hardware Features Include o Encoder measurements up to 20 MHz including Z channel zeroing o Frequency and Pulse width measurements with 20 83 nsec resolution o A Timing mode that can measure the time between two counter inputs to 20 83 nsec resolution o Self calibration The DaqBoard 3000USB series offers up to 4 MHz scanning of all digital input lines Digital inputs and counter inputs can be synchronously scanned along with analog inputs but do not affect the overall A D rate because they use no time slot in the scanning sequencer For example one analog input can be scanned at the full 1 MHz A D rate along with digital and counter input channels The 1 MHz A D rate is unaffected by additional digital and counter channels An additional 48 single ended or 24 differential analog input channels are included with models 3031USB and 3035USB through their J5 and J6 headers two of the four the onboard 40 pin headers see pinout chapter 2 Typically a CA 248 cable is connected to the header to provide a DB37 connection option The CA 248 cables have a 40 pin header at one end and a male DB 37 connector at the other A pinout for the CA 248 is provided in Chapter 2 With the boards 1 MHz aggregate sample rate users can easily add multiple analog expansion channels to the 3031USB and 3035USB boards and still have enough bandwidth to h
158. there is an option to change this A second channel referred to as the mapped channel can be used to latch the counter output The mapped channel can also be used to e gate the counter e increment the counter e decrement the counter The mapped channel can be any of the 4 counter input channels post debounce or any of the four asynchronous read strobes When a counter is not in the scan it can be asynchronously read with or without clear on read The asynchronous read signals strobe when the lower 16 bits of the counter are read by software The software can read the counter s high 16 bits at a later time after reading the lower 16 bits The full 32 bit result reflects the timing of the first asynchronous read strobe OPTI Gate TC Lona lord High ced 32 Bit Latch 32 Bits To PC Buffer Channel Input OPTA Post Debounce Decrement start of Scan Signal 4 Channel Inputs te Post Debounce i 4 Asynchronous Mapped Channel Read Strobes T Counter Totalize Mode OPTI There is one asynchronous read strobe for each of the four counter channels 5 6 Counter Input Modes 887794 DaqBoard 3000USB Series User s Manual An explanation of the various counter options depicted in the previous figure follows COUNTER OPTO This selects totalize or clear on read mode Totalize Mode The counter counts up and rolls over on the 16 bit Low Counter boundary or on the 32 bit High Counter bo
159. time of calibration The user can adjust the calibration of the board while it is installed in the acquisition system without destroying the factory calibration This is accomplished by having 3 distinct calibration tables in the on board EPROM The user can select any of the three cal tables provided factory user or self cal tables by API call or from within software Self cal can be performed automatically via the included software and without the use of external hardware or instruments Self cal derives its tracebility through an on board reference which has a stability of 0 005 per year Note that a 2 year calibration period is recommended for DaqBoard 3000USB Series boards Reference Note Chapter 4 Calibration discusses using a temperature calibrator with a DaqBoard 3000USB Series board Analog Output DaqBoard 3001USB and 3031 Only DaqBoard 3001USB and 3031USB each have four 16 bit 1 MHz analog output channels The channels have an output range of 10V to 10V This can be read from PC RAM or from a file on the hard disk In addition a program can asynchronously output a value to any of the D As for non waveform applications presuming that the D A is not already being used in the waveform output mode A program can asynchronously output a value to any of the D As for non waveform applications presuming that the D A is not already being used in the waveform output mode Each of the analog outputs can be used in a control
160. to 4 channels of temperature Each board employs three thermistors to measure the junction temperature at the TB7 terminal block for each thermocouple connection The thermistors are located just behind the terminal block The actual junction is on the TB7 terminal block and therefore there is some amount of error in each thermistor s ability to measure actual junction temperature DaqBoard 3000USB software compensates for the thermal error between the CJC thermistor temperature and the actual junction temperature at the terminal block The units are profiled under controlled conditions still air 25 C 60 minute warm up lying on a flat surface and the thermal error is measured on a per channel basis The per channel CJC temperature offsets are then stored inside the unit in non volatile memory along with the calibration constants Tips for Making Accurate Temperature Measurements o Use as much oversampling as possible o Make sure the unit has been warmed up for at least 60 minutes including thermocouple wires This allows the unit to thermally stabilize so the CJC thermistors can accurately measure the junction at the terminal block o Make sure the surrounding environment is thermally stabilized and ideally around 20 C to 30 C If the board s ambient temperature is changing due to a local heating or cooling source then the TC junction temperature may be changing and the CJC thermistor will have a larger error o Use small dia
161. turned will be zero since the counters are cleared at the beginning of the acquisition In this example the data comes in sets of four because the scan period is about one fourth as long as the input channel s period Every time the pulsewidth measurement is latched from the counter the counter is immediately cleared and enabled to count time for the next pulsewidth If the scan period is much slower than the input period then the acquisitions will miss some pulsewidths Decreasing the scan period will increase the number of different pulsewidths received The data returned is interpreted as time measured in ticks There are four timebase settings 20 833 ns 208 33 ns 2 083 us and 20 83 us These are often referred to as tick sizes The 3000USB Series board uses a 48 MHz 50 ppm oscillator as a timing source f If the input signal has a poor slew rate the pulsewidth mode will provide variant results DaqBoard 3000USB Series User s Manual 887794 Counter Input Modes 5 11 PULSEWIDTH OPT2 Determines whether the pulsewidth is to be measured with a 16 bit Counter Low or 32 bit counter High counter Since pulsewidth measurements always have the stop at the top option enabled this option dictates whether the measurement has a range of 0 to 65535 ticks or 0 to 4 294 967 295 ticks PULSEWIDTH OPT4 Allows the mapped channel to gate the counter When the mapped channel is high the counter is enabled to count When the mapped cha
162. undary See OPT2 in regard to choosing 16 bit or 32 bit counters Clear On Read Mode The counter is cleared at the beginning of every scan or synchronous read and the final value of the counter the value just before it was cleared is latched and returned to the 3000USB Series board COUNTER OPTI This determines if the counter is to rollover or stop at the top Rollover Mode The counter continues to count upward rolling over on the 16 bit Counter Low boundary or on the 32 bit Counter High boundary See OPT2 in regard to choosing 16 bit or 32 bit counters Stop at the Top Mode The counter will stop at the top of its count The top of the count is FFFF for the 16 bit option Counter Low and FFFFFFFF for the 32 bit option Counter High COUNTER OPT2 Determines whether the counter is 16 bits or 32 bits Counter Low or Counter High respectively This only matters when the counter is using the stop at the top option otherwise this option is inconsequential COUNTER OPT3 Determines which signal latches the counter outputs into the data stream back to the 3000USB Series board Normally the start of scan signal latches the counter outputs at the beginning of every scan but an option is to have the mapped signal latch the counter outputs This mapped signal option allows a second signal to control the latching of the count data This allows the user to know the exact counter value when an edge is present on another
163. unter Low or 32 bit Counter High counter Since period measurements always have the stop at the top option enabled this option dictates whether the measurement has a range of 0 to 65535 ticks or 0 to 4 294 967 295 ticks PERIOD OPT4 Allows the mapped channel to gate the counter if desired When the mapped channel is high the counter is enabled When the mapped channel is low the counter is disabled but still holds the count value The mapped channel can be any other input channel PERIOD OPT6 This allows a mapped channel s period to be measured instead of the input channel The mapped channel can be any other input channel post debounce This option allows the counter to be used with any other input channel post debounce If the channel s input is used elsewhere for example gating another counter the counter for this channel does not need to go unused Period and Frequency Accuracy The 3000USB Series board can measure the period of any input waveform It does this by counting the integral number of ticks that make up the period the data returned will always be time measured in ticks The error in each data sample will come from two sources the sampling error caused by not being able to count a partial tick and the 3000USB Series Board s internal timebase inaccuracy The board s internal timebase has an absolute accuracy of 50 ppm The sampling error will vary with input frequency selected ticksi
164. ut and specifies the level of the input where the digital output changes state The response time in this mode is dependent on the number of input channels being scanned and can typically be in the range of 2 to 20 usec Reference Note For detailed information regarding low latency control outputs see Chapter 6 1 14 Device Overviews 988093 DaqBoard 3000USB Series User s Manual Example 5 Analog channel scanning of voltage inputs and streaming analog outputs The figure below shows a simple acquisition The scan is programmed pre acquisition and is made up of 6 analog channels Ch0 Ch2 Ch5 Ch11 Ch22 Ch25 Each of these analog channels can have a different gain The acquisition is triggered and the samples stream to the PC via USB2 Each analog channel requires one microsecond of scan time therefore the scan period can be no shorter than 6 us for this example The scan period can be made much longer than 6 us up to 19 hours The maximum scan frequency is one divided by 6us or 166 666 Hz Start of Scan Start of Scan Start of Scan Start of Scan o 2 shu2Jas fo 2 shui2fs fofa shuPals Jo 2 Js abs DACx This example has all 4 DACs being updated and the 16 bits of digital IO These updates are performed at the same time as the acquisition pacer clock also called the scan clock All 4 DACs and the 16 bits of pattern digital output are updated at the beginning of each scan Note that the DACs will actually take up to 4 us after t
165. uts The figure below shows a simple acquisition The scan is programmed pre acquisition and is made up of 6 analog channels Ch0 Ch2 Ch5 Ch11 Ch22 Ch25 Each of these analog channels can have a different gain The acquisition is triggered and the samples stream to the PC via USB2 Each analog channel requires one microsecond of scan time therefore the scan period can be no shorter than 6 us for this example The scan period can be made much longer than 6 us up to 19 hours The maximum scan frequency is one divided by 6us or 166 666 Hz Start of Scan Start of Scan Start of Scan Start of Scan o 2 s 11f22 25 lus Scan Period lo 2 s x 22 2s ol2 s arja2 2s fo 2 5 11 2225 All analog channels are sampled at the same rate of lus DaqBoard 3000USB Series User s Manual 988093 Device Overviews 1 7 Example 2 Analog channel scanning of voltage and temperature inputs The scan is programmed pre acquisition and is made up of 6 analog channels Ch0 Ch2 Ch5 Ch11 Ch22 Ch23 Each of these analog channels can have a different gain Channels 0 and 2 can be programmed to directly measure thermocouples In this mode oversampling is programmable up to 16384 oversamples per channel in the scan group When oversampling is applied it is applied to all analog channels in the scan group including temperature and voltage channels Digital channels are not oversampled If the desired number of oversamples is 256 then each analog chann
166. vice to qualified personnel The specific safety conditions for CE compliance vary by product but general safety conditions include e The operator must observe all safety cautions and operating conditions specified in the documentation for all hardware used e The host computer and all connected equipment must be CE compliant e All power must be off to the device and externally connected equipment before internal access to the device is permitted e Isolation voltage ratings do not exceed documented voltage limits for power and signal inputs All wire insulation and terminal blocks in the system must be rated for the isolation voltage in use Voltages above 30 Vrms or 60 VDC must not be applied if any condensation has formed on the device e Current and power use must not exceed specifications Do not defeat fuses or other over current protection Emissions Immunity Conditions 3 2 The specific immunity conditions for CE compliance vary by product but general immunity conditions include e Cables must be shielded braid type with metal shelled connectors Input terminal connections are to be made with shielded wire The shield should be connected to the chassis ground with the hardware provided e The host computer must be properly grounded e In low level analog applications some inaccuracy is to be expected when I O leads are exposed to RF fields or transients over 3 or 10 V m as noted on the Declaration of Conformity CE Compli
167. with the 3000 Series is new DaqView software a comprehensive Out of the Box application that enables set up data logging and real time data viewing without existing programming skills Optional DaqView Pro also adds features such as direct to Excel enhancements FFT analysis statistics etc DaqView software provides Out of the Box quick and easy set up and collection of data Daq devices have software options capable of handling most applications Three types of software are available e Ready to use graphical programs e g DaqView DaqViewXL and post acquisition data analysis programs such as PostView DIAdem and eZ PostView e Drivers for third party icon driven software such as DASYLab and LabView e Various language drivers to aid custom programming using API Ready to use programs are convenient for fill in the blank applications that do not require programming for basic data acquisition and display e DaqView is a Windows based program for basic set up and data acquisition DaqView lets you select desired channels gains transducer types including thermocouples and a host of other parameters with a click of a PC s mouse DaqView lets you stream data to disk and display data in numerical or graphical formats PostView is a post acquisition waveform display program within DaqView e ViewXL Plus allows you to interface directly with Microsoft Excel to enhance data handling and display Within Excel you have a full f
168. ycle rejection to be done When the units are put into oversampling mode noise is reduced and ambient 60Hz or 50Hz pick up can be rejected When enabled oversampling is adjustable from 2 to 16384 The more oversampling that is done the less noise present in the readings Line cycle rejection is just another mode of oversampling where 16384 8192 4096 etc consecutive samples are averaged over one line cycle of 50Hz or 60Hz When oversampling is employed it is done for all analog channels in the scan group voltage temperature CJC and autozero Digital channels are not oversampled Increasing the amount of oversampling will drastically decrease the maximum allowable scan rate During acquisitions the system controller reads each of the channel entries in the scan list and measures each channel according to the desired channel number and gain If oversampling is enabled the acquisition engine reads each of the channel entries in the scan list and takes multiple consecutive measurements without changing the channel or gain All consecutive 16 bit measurements are averaged and then returned to the software In the case of line cycle rejection the acquisition engine adjusts the conversion time of the ADC slightly so that 16384 8192 4096 etc samples will fit inside one line cycle of 50 Hz 20ms or 60Hz 16 666ms B 6 Signal Modes and System Noise 886994 Appendix B Glossary Acquisition Analog Analog to Digital Converter ADC API
169. ze and selected averaging mode The absolute error is the root sum of squares of the two independent error sources Many times the desired accuracy is much less than what the internal timebase is capable of Other applications will require a more accurate period measurement and the effects of sampling error will have to be averaged out leaving only the inaccuracy associated with the internal timebase Inaccuracy due to the internal timebase cannot be averaged out For period and frequency measurements percent sampling error is equal to 100 n 1 where n 0 to 65 535 for a 16 bit counter and n 0 to 4 294 967 295 for a 32 bit counter For small count values the sampling error is large and for large count values the sampling error is small If sampling error is to be less than 0 21 n must be greater than 480 regardless of counter size Sampling error can also be reduced by averaging many samples together Assuming the input signal is asynchronous to the board s internal timebase sampling error can be divided by the square root of the number of samples taken The averaging can be done with PC based software The board has the ability to measure 1 10 100 or 1000 periods dividing the sampling error by 1 10 100 or 1000 This is done within the board circuitry and may eliminate the need for any averaging to be done in the PC For high accuracy on high frequency inputs multiple period measurement and PC based averaging can be done T

DaqBoard/3000USB Series User`s Manual

Contents

Download Pdf Manuals

Related Search

Related Contents