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National Instruments VXI-MIO Series, User Manual

The National Instruments VXI-MIO Series offers a wide range of versatile and reliable measurement and control capabilities. To fully utilize the potential of these products, make sure to download the free User Manual from manualshive.com for detailed instructions and guidelines on how to optimize performance and functionality.

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Table of Contents

 

 

 National Instruments Corporation

ix

VXI-MIO Series User Manual

 

Figure 4-1. I/O Connector Pin Assignment for the VXI-MIO-64E-1 and 

VXI-MIO-64XE-10 ................................................................................4-2

Figure 4-2. VXI-MIO Series PGIA  ............................................................................4-10
Figure 4-3. Summary of Analog Input Connections  ..................................................4-13
Figure 4-4. Differential Input Connections for Ground-Referenced Signals  .............4-15
Figure 4-5. Differential Input Connections for Nonreferenced Signals  .....................4-16
Figure 4-6. Single-Ended Input Connections for Nonreferenced or Floating 

Signals .....................................................................................................4-19

Figure 4-7. Single-Ended Input Connections for Ground-Referenced Signal ............4-20
Figure 4-8. Analog Output Connections .....................................................................4-21
Figure 4-9. Digital I/O Connections  ...........................................................................4-22
Figure 4-10. Timing I/O Connections  ..........................................................................4-24
Figure 4-11. Typical Posttriggered Acquisition  ...........................................................4-25
Figure 4-12. Typical Pretriggered Acquisition  .............................................................4-26
Figure 4-13. SCANCLK Signal Timing  .......................................................................4-26
Figure 4-14. EXTSTROBE* Signal Timing  ................................................................4-27
Figure 4-15. TRIG1 Input Signal Timing .....................................................................4-28
Figure 4-16. TRIG1 Output Signal Timing  ..................................................................4-28
Figure 4-17. TRIG2 Input Signal Timing .....................................................................4-29
Figure 4-18. TRIG2 Output Signal Timing  ..................................................................4-29
Figure 4-19. STARTSCAN Input Signal Timing .........................................................4-30
Figure 4-20. STARTSCAN Output Signal Timing  ......................................................4-31
Figure 4-21. CONVERT* Input Signal Timing  ...........................................................4-32
Figure 4-22. CONVERT* Output Signal Timing .........................................................4-33
Figure 4-23. SISOURCE Signal Timing  ......................................................................4-34
Figure 4-24. WFTRIG Input Signal Timing .................................................................4-35
Figure 4-25. WFTRIG Output Signal Timing  ..............................................................4-35
Figure 4-26. UPDATE* Input Signal Timing  ..............................................................4-37
Figure 4-27. UPDATE* Output Signal Timing ............................................................4-37
Figure 4-28. UISOURCE Signal Timing ......................................................................4-38
Figure 4-29. GPCTR0_SOURCE Signal Timing .........................................................4-39
Figure 4-30. GPCTR0_GATE Signal Timing in Edge-Detection Mode  .....................4-40
Figure 4-31. GPCTR0_OUT Signal Timing  ................................................................4-40
Figure 4-32. GPCTR1_SOURCE Signal Timing .........................................................4-41
Figure 4-33. GPCTR1_GATE Signal Timing in Edge-Detection Mode  .....................4-42
Figure 4-34. GPCTR1_OUT Signal Timing  ................................................................4-43
Figure 4-35. GPCTR Timing Summary  .......................................................................4-43

Figure B-1. 68-Pin MIO Connector Pin Assignments  ................................................B-2
Figure B-2. 68-Pin Extended Analog Input Connector Pin Assignments  ...................B-3

Summary of Contents for VXI-MIO Series

Page 1: ...odules for VXIbus August 1996 Edition Part Number 321246A 01 Copyright 1996 National Instruments Corporation All Rights Reserved Click here to comment on this document via the National Instruments web...

Page 2: ...6 Austria 0662 45 79 90 0 Belgium 02 757 00 20 Canada Ontario 905 785 0085 Canada Qu bec 514 694 8521 Denmark 45 76 26 00 Finland 90 527 2321 France 01 48 14 24 24 Germany 089 741 31 30 Hong Kong 2645...

Page 3: ...CONSEQUENTIAL DAMAGES EVEN IF ADVISED OF THE POSSIBILITY THEREOF This limitation of the liability of National Instruments will apply regardless of the form of action whether in contract or tort includ...

Page 4: ...1 1 What You Need to Get Started 1 2 Software Programming Choices 1 2 National Instruments Application Software 1 2 NI DAQ Driver Software 1 3 VXIplug play Instrument Drivers 1 4 Optional Equipment 1...

Page 5: ...ignal Connections I O Connector 4 1 I O Connector Signal Descriptions 4 3 Analog Input Signal Connections 4 9 Types of Signal Sources 4 11 Floating Signal Sources 4 11 Ground Referenced Signal Sources...

Page 6: ...SISOURCE Signal 4 34 Waveform Generation Timing Connections 4 34 WFTRIG Signal 4 36 UPDATE Signal 4 36 UISOURCE Signal 4 37 General Purpose Timing Signal Connections 4 38 GPCTR0_SOURCE Signal 4 38 GP...

Page 7: ...Locator Diagram 2 4 Figure 2 3 VXI MIO 64XE 10 Logical Address Selection 2 5 Figure 2 4 SIMM Size Configuration 2 6 Figure 2 5 Load User Factory Configuration 2 8 Figure 2 6 Protect Change Factory Co...

Page 8: ...4 15 TRIG1 Input Signal Timing 4 28 Figure 4 16 TRIG1 Output Signal Timing 4 28 Figure 4 17 TRIG2 Input Signal Timing 4 29 Figure 4 18 TRIG2 Output Signal Timing 4 29 Figure 4 19 STARTSCAN Input Signa...

Page 9: ...s DRAM Configuration 2 6 Table 3 1 Available Input Configurations for the VXI MIO Series 3 3 Table 3 2 Actual Range and Measurement Precision 3 4 Table 3 3 Actual Range and Measurement Precision VXI M...

Page 10: ...the VXI MIO Series modules lists what you need to get started describes the optional software and optional equipment and explains how to unpack your VXI MIO Series module Chapter 2 Configuration and I...

Page 11: ...anual The indicates that the text following it applies only to specific VXI MIO Series modules Angle brackets containing numbers separated by an ellipsis represent a range of values associated with a...

Page 12: ...your system Use these manuals for hardware installation and configuration instructions specification information about your VXI DAQ hardware and application hints Software documentation You may have...

Page 13: ...erations for Analog Signals Customer Communication National Instruments wants to receive your comments on our products and manuals We are interested in the applications you develop with our products a...

Page 14: ...ments DAQ STC system timing controller for timer related functions The DAQ STC consists of three timing groups that control analog input analog output and general purpose counter timer functions These...

Page 15: ...ramming your National Instruments VXI DAQ hardware You can use LabVIEW LabWindows CVI Measure ComponentWorks VirtualBench or other application development environments with either NI DAQ or the VXIplu...

Page 16: ...ame forms that can be used in popular spreadsheet programs and word processors VirtualBench features report generation and printing capabilities Using ComponentWorks LabVIEW LabWindows CVI or VirtualB...

Page 17: ...an change platforms with minimal modifications to your code VXIplug play Instrument Drivers National Instruments distributes VXIplug play instrument drivers free of charge VXIplug play instrument driv...

Page 18: ...onnector blocks SCXI modules and accessories for isolating amplifying exciting and multiplexing signals for relays and analog output With SCXI you can condition and acquire up to 3072 channels Low cha...

Page 19: ...the analog and digital halves of the cable Failure to do so results in noise coupling into the analog signals from transient digital signals Unpacking Your VXI MIO Series module is shipped in an antis...

Page 20: ...range analog output reference source and other settings VXIbus Logical Address Each module in a VXIbus system is assigned a unique number between 0 and 254 This 8 bit number called the logical address...

Page 21: ...cal address setting of either the VXI MIO Series module or the other module so that every module in the system has a different associated logical address To change the logical address of the VXI MIO S...

Page 22: ...onal Instruments Corporation 2 3 VXI MIO Series User Manual Figure 2 1 VXI MIO 64E 1 Parts Locator Diagram 1 DRAM 2 Product Name 3 Assembly Number 4 P3 5 Serial Number 6 S1 7 S2 8 S3 9 Logical Address...

Page 23: ...uments Corporation Figure 2 2 VXI MIO 64XE 10 Block Diagram Figure 2 3 shows the VXI MIO 64XE 10 switch settings for logical address 2 and 192 1 DRAM 2 Product Name 3 Assembly Number 4 P3 5 S1 6 S2 7...

Page 24: ...t be of the same type Use bank 0 first when installing the SIMMs so that you can install up to 64 MB The VXI MIO module supports DRAM speeds of 80 ns or faster Use switch S3 to select the size of each...

Page 25: ...gure 2 4 SIMM Size Configuration Refer to Table 2 1 to properly adjust the switch ON or OFF for all supported DRAM configurations Many of the DRAM options are available from National Instruments Table...

Page 26: ...nfigured half instead of the user modified settings This is useful in the event that the user configured half of the EEPROM becomes corrupted in such a way that the VXI MIO module boots to an unusable...

Page 27: ...6 for configuration settings Figure 2 6 Protect Change Factory Configuration Hardware Installation This section contains general installation instructions for the VXI MIO Series modules Consult your...

Page 28: ...with the front panel of the mainframe 5 Tighten the retaining screws on the top and bottom edges of the front panel 6 Replace or close any doors or covers to the mainframe Software Installation Regar...

Page 29: ...indows CVI release notes to install your application software After you have installed LabWindows CVI refer to the NI DAQ release notes and follow the instructions given there for your operating syste...

Page 30: ...rporation 3 1 VXI MIO Series User Manual Hardware Overview Chapter 3 This chapter presents an overview of the hardware functions on your VXI MIO Series module Figure 3 1 shows the block diagram for th...

Page 31: ...er Counter Timing I O RTSI Bus Interface DMA Interrupt Request Bus Interface ACH 48 63 ACH 32 47 ACH 16 31 ACH 0 15 Analog Input Control EEPROM Control EPF8282 DAQ STC Interface DMA Interface Bus Inte...

Page 32: ...multimode scanning For example you can configure the circuitry to scan 48 channels 16 differentially configured channels and 32 single ended channels Table 3 1 describes the three input configurations...

Page 33: ...o that you can configure each input channel uniquely The software programmable gain on this module increases its overall flexibility by matching the input signal ranges to those that the ADC can accom...

Page 34: ...d The software programmable gain on this module increases its overall flexibility by matching the input signal ranges to those that the ADC can accommodate The VXI MIO 64XE 10 has gains of 1 2 5 10 20...

Page 35: ...ertain the input signal will not be negative below 0 V unipolar input polarity is best However if the signal is negative or equal to zero using unipolar input polarity will yield inaccurate readings T...

Page 36: ...measurement noise resulting in improved resolution For high speed applications not involving averaging or spectral analysis you may want to disable the dither to reduce noise You enable and disable th...

Page 37: ...VXI MIO Series modules When scanning among channels at various gains the settling times may increase When the PGIA switches to a higher gain the signal on the previous channel may be well outside the...

Page 38: ...4 V step It may take as long as 200 s for the circuitry to settle to this accuracy In general this extra settling time is not needed when the PGIA is switching to a lower gain Settling times can also...

Page 39: ...nd 10 V You do not need to configure both channels for the same mode Analog Output Polarity Selection Selecting a bipolar range for a particular DAC means that any data written to that DAC will be int...

Page 40: ...uency spectrum Notice that this reglitch circuit does not eliminate the glitches it only makes them more uniform in size Reglitching is normally disabled at startup and can be independently enabled fo...

Page 41: ...this input via software Figure 3 3 Analog Trigger Block Diagram There are five analog triggering modes available as shown in Figures 3 4 through 3 8 You can set lowValue and highValue independently in...

Page 42: ...enerated when the signal value is between the lowValue and the highValue Figure 3 6 Inside Region Analog Triggering Mode In high hysteresis analog triggering mode the trigger is generated when the sig...

Page 43: ...ut section can be configured to acquire n scans after the analog input signal crosses a specific threshold As another example the analog output section can be configured to update its outputs whenever...

Page 44: ...l circuitry These connections are designed to enable the VXI MIO Series module to both control and be controlled by other modules and circuits There are a total of 13 timing signals internal to the DA...

Page 45: ...for different applications You can also individually enable each of the PFI pins to output a specific internal timing signal For example if you need the UPDATE signal as an output on the I O connector...

Page 46: ...NI DAQ software the VXIbus trigger lines are functionally equivalent to RTSI bus trigger lines Figure 3 10 VXIbus Trigger Utilization Refer to the Timing Connections section of Chapter 4 for a descrip...

Page 47: ...ix B Optional Cable Connector Descriptions for more information I O Connector Figure 4 1 shows the 96 pin I O connector pin assignments on the VXI MIO 64E 1 and VXI MIO 64XE 10 A signal description fo...

Page 48: ...4 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 A ACH55 ACH61 ACH52 ACH58 ACH49 ACH47 ACH38 ACH44 ACH43 A...

Page 49: ...ut Sense This pin serves as the reference node for any of channels ACH 16 63 in NRSE configuration DAC0OUT AOGND Output Analog Channel 0 Output This pin supplies the voltage output of analog output ch...

Page 50: ...a low to high transition indicates the initiation of the pretrigger conversions PFI1 TRIG2 DGND Input Output PFI1 Trigger 2 As an input this is one of the PFIs As an output this is the TRIG2 signal In...

Page 51: ...is the STARTSCAN signal This pin pulses once at the start of each analog input scan in the interval scan A low to high transition indicates the start of the scan PFI8 GPCTR0_SOURCE DGND Input Output P...

Page 52: ...O 0 1 Short circuit to ground 5 at 10 V 5 at 10 V 20 V s DAC1OUT AO 0 1 Short circuit to ground 5 at 10 V 5 at 10 V 20 V s EXTREF AO 10 k 25 15 AOGND AO DGND DO 5 V DO 0 1 Short circuit to ground 1 A...

Page 53: ...5 at 0 4 1 5 50 k pu GPCTR0_OUT DO 3 5 at 4 6 V 5 at 0 4 1 5 50 k pu FREQ_OUT DO 3 5 at 4 6 V 5 at 0 4 1 5 50 k pu AI Analog Input DIO Digital Input Output pu pullup AO Analog Output DO Digital Outpu...

Page 54: ...t circuit to ground 5 at 10 V 5 at 10 V 5 V s DAC1OUT AO 0 1 Short circuit to ground 5 at 10 V 5 at 10 V 5 V s AOGND AO DGND DO 5 V DO 0 1 Short circuit to ground 1A DIO 0 7 DIO 5 5 V 13 at 4 6 V 24 a...

Page 55: ...module and your VXIbus system National Instruments is NOT liable for any damages resulting from such signal connections The maximum input voltage ratings are listed in Tables 4 1 and 4 2 in the Protec...

Page 56: ...le depends on the configuration of the analog input channels you are using and the type of input signal source With the different configurations you can use the PGIA in different ways Figure 4 2 shows...

Page 57: ...has an isolated ground reference point Some examples of floating signal sources are outputs of transformers thermocouples battery powered devices optical isolated outputs and isolation amplifiers Tie...

Page 58: ...ration Input Configurations You can configure your VXI MIO Series module for one of three input modes NRSE RSE or DIFF The following sections discuss the use of single ended and differential measureme...

Page 59: ...e Ended NRSE Floating Signal Source Not Connected to Earth Ground Grounded Signal Source Examples Ungrounded thermocouples Signal conditioning with isolated outputs Battery devices Examples Plug in in...

Page 60: ...input each signal uses two multiplexer input lines one for the signal and one for its reference signal Therefore with a differential configuration for every channel up to 32 analog input channels are...

Page 61: ...rential Input Connections for Ground Referenced Signals With this type of connection the PGIA rejects both the common mode noise in the signal and the ground potential difference between the signal so...

Page 62: ...not use the resistors and the source is truly floating the source is not likely to remain within the common mode signal range of the PGIA and the PGIA will saturate causing erroneous readings You mus...

Page 63: ...connecting another resistor of the same value between the positive input and AIGND as shown in Figure 4 5 This fully balanced configuration offers slightly better noise rejection but has the disadvant...

Page 64: ...t connections are recommended for greater signal integrity for any input signal that does not meet the preceding conditions You can software configure the VXI MIO Series module channels for two differ...

Page 65: ...local ground reference is connected to the PGIA negative input The ground point of the signal should therefore be connected to the AISENSE pin Any potential difference between the VXI MIO Series groun...

Page 66: ...s to the module The PGIA can reject common mode signals as long as V in and V in are both within 11 V of AIGND Analog Output Signal Connections The analog output signals are DAC0OUT DAC1OUT EXTREF and...

Page 67: ...ge 11 V peak with respect to AOGND Absolute maximum ratings 15 V peak with respect to AOGND AOGND is the ground reference signal for both analog output channels and the external reference signal Figur...

Page 68: ...uts Warning Exceeding the maximum input voltage ratings which are listed in Tables 4 1 and 4 2 can damage the VXI MIO Series module National Instruments is NOT liable for any damages resulting from su...

Page 69: ...your device National Instruments is NOT liable for damages resulting from such a connection Timing Connections Warning Exceeding the maximum input voltage ratings which are listed in Tables 4 1 and 4...

Page 70: ...nections Programmable Function Input Connections There are a total of 13 internal timing signals that you can externally control from the PFI pins The source for each of these signals is software sele...

Page 71: ...e detection mode In level detection mode there are no minimum or maximum pulse width requirements imposed by the PFIs themselves but limits may be imposed by the particular timing signal being control...

Page 72: ...ultiplexers indicating when the input signal has been sampled and can be removed This signal has a 400 to 500 ns pulse width and is software enabled Figure 4 13 shows the timing for the SCANCLK signal...

Page 73: ...ou can select any PFI pin as the source for TRIG1 and configure the polarity selection for either rising or falling edge The selected edge of the TRIG1 signal starts the data acquisition sequence for...

Page 74: ...gnal Any PFI pin can externally input the TRIG2 signal which is available as an output on the PFI1 TRIG2 pin Refer to Figure 4 12 for the relationship of TRIG2 to the data acquisition sequence As an i...

Page 75: ...ion will stop This mode acquires data both before and after receiving TRIG2 As an output the TRIG2 signal reflects the posttrigger in a pretriggered acquisition sequence This is true even if the acqui...

Page 76: ...if you select internally triggered CONVERT As an output the STARTSCAN signal reflects the actual start pulse that initiates a scan This is true even if the starts are being externally triggered by an...

Page 77: ...SCAN pulses by at least one scan period A counter on your VXI MIO Series module internally generates the STARTSCAN signal unless you select some external source This counter is started by the TRIG1 si...

Page 78: ...CONVERT and configure the polarity selection for either rising or falling edge The selected edge of the CONVERT signal initiates an A D conversion As an output the CONVERT signal reflects the actual...

Page 79: ...nless they occur within a data acquisition sequence Scans occurring within a data acquisition sequence may be gated by either the hardware AIGATE signal or software command register gate AIGATE Signal...

Page 80: ...he SISOURCE signal in the level detection mode You can configure the polarity selection for the PFI pin for either active high or active low The maximum allowed frequency is 20 MHz with a minimum puls...

Page 81: ...ter is started if you select internally generated UPDATE As an output the WFTRIG signal reflects the trigger that initiates waveform generation This is true even if the waveform generation is being ex...

Page 82: ...y selection for either rising or falling edge The selected edge of the UPDATE signal updates the outputs of the DACs In order to use UPDATE you must set the DACs to posted update mode As an output the...

Page 83: ...ted by the WFTRIG signal and can be stopped by software or the internal Buffer Counter D A conversions generated by either an internal or external UPDATE signal do not occur when gated by the software...

Page 84: ...neral purpose timing signals are GPCTR0_SOURCE GPCTR0_GATE GPCTR0_OUT GPCTR0_UP_DOWN GPCTR1_SOURCE GPCTR1_GATE GPCTR1_OUT GPCTR1_UP_DOWN and FREQ_OUT GPCTR0_SOURCE Signal Any PFI pin can externally in...

Page 85: ...e PFI9 GPCTR0_GATE pin As an input the GPCTR0_GATE signal is configured in the edge detection mode You can select any PFI pin as the source for GPCTR0_GATE and configure the polarity selection for eit...

Page 86: ...r both options This signal is set to input High Z at startup Figure 4 31 shows the timing of the GPCTR0_OUT signal Figure 4 31 GPCTR0_OUT Signal Timing GPCTR0_UP_DOWN Signal This signal can be externa...

Page 87: ...ource clock is being externally generated by another PFI This signal is set to input High Z at startup Figure 4 32 shows the timing requirements for the GPCTR1_SOURCE signal Figure 4 32 GPCTR1_SOURCE...

Page 88: ...externally generated by another PFI This signal is set to input High Z at startup Figure 4 33 shows the timing requirements for the GPCTR1_GATE signal Figure 4 33 GPCTR1_GATE Signal Timing in Edge Det...

Page 89: ...n functionality and leave the DIO7 pin free for general use Figure 4 35 shows the timing requirements for the GATE and SOURCE input signals and the timing specifications for the OUT output signals of...

Page 90: ...e active edge of the source signal If an internal timebase clock is used the gate signal cannot be synchronized with the clock In this case gates applied close to a source edge take effect either on t...

Page 91: ...traveling through areas with large magnetic fields or high electromagnetic interference Route signals to the module carefully Keep cabling away from noise sources A common noise source in many data ac...

Page 92: ...t and least accurate whereas the last level is the slowest most difficult and most accurate Loading Calibration Constants Your VXI MIO Series module is factory calibrated before shipment at approximat...

Page 93: ...tion the only significant residual calibration error could be gain error due to time or temperature drift of the onboard voltage reference External calibration addresses this error which is discussed...

Page 94: ...e a 16 bit module the external reference should be at least 0 001 10 ppm accurate Other Considerations The CalDACs adjust the gain error of each analog output channel by adjusting the value of the ref...

Page 95: ...of each module in the VXI MIO Series These specifications are typical at 25 C unless otherwise noted VXI MIO 64E 1 Analog Input Input Characteristics Number of channels 64 single ended or 32 different...

Page 96: ...tion 25 V powered on 15 V powered off Inputs protected ACH 0 63 AISENSE AISENSE2 FIFO buffer size 8 192 S Data transfers DMA interrupts programmed I O Configuration memory size 512 words Input signal...

Page 97: ...tion 2 5 mV max Postgain error after calibration 0 5 mV max Postgain error before calibration 100 mV max Gain error relative to calibration reference After calibration gain 1 0 02 of reading max Befor...

Page 98: ...nt 20 ppm C Onboard calibration reference Level 5 000 V 0 5 mV actual value stored in EEPROM Temperature coefficient 0 6 ppm C max Long term stability 6 ppm Bandwidth Small signal 3 dB Large signal 1...

Page 99: ...Double buffered multiplying FIFO buffer size 2 048 samples Data transfers DMA interrupts programmed I O Transfer Characteristics Relative accuracy INL After calibration 0 3 LSB typ 0 5 LSB max Before...

Page 100: ...circuit to ground Power on state 0 V External reference input Range 11 V Overvoltage protection 25 V powered on 15 V powered off Input impedance 10 k Bandwidth 3 dB 1 MHz Dynamic Characteristics Sett...

Page 101: ...y TTL CMOS Power on state Input High Z Data transfers Programmed I O Timing I O Number of channels 2 up down counter timers 1 frequency scaler Resolution Counter timers 24 bits Frequency scalers 4 bit...

Page 102: ...er Source ACH 0 63 PFI0 TRIG1 Level full scale internal 10 V external Slope Positive or negative software selectable Resolution 8 bits 1 in 256 Hysteresis Programmable Bandwidth 3 dB 1 5 MHz internal...

Page 103: ...ed by accessories 5 2 VDC 0 15 A typ 0 18 A max 2 VDC 0 04 A typ 0 06 A max 24 VDC 0 09 A typ 0 10 A max 24 VDC 0 09 A typ 0 10 A max Power available at I O connector 4 65 VDC to 5 25 VDC at 1 A Physi...

Page 104: ...uaranteed Input coupling DC Maximum working voltage Each input should remain within 11 V of ground Overvoltage protection 25 V powered on 15 V powered off Inputs protected ACH 0 63 AISENSE AISENSE2 FI...

Page 105: ...bration 76 V max Postgain error before calibration 102 mV max Gain error relative to calibration reference After calibration gain 1 30 5 ppm of reading max Before calibration 2 150 ppm of reading max...

Page 106: ...8 LSB rms unipolar Gain 20 0 7 LSB rms bipolar 1 1 LSB rms unipolar Gain 50 1 1 LSB rms bipolar 2 0 LSB rms unipolar Gain 100 2 0 LSB rms bipolar 3 8 LSB rms unipolar Dynamic range 91 7 dB full scale...

Page 107: ...ative accuracy INL 0 5 LSB typ 1 LSB max DNL 1 LSB max Monotonicity 16 bits guaranteed Offset error After calibration 305 V max Before calibration 20 mV max Gain error relative to internal reference A...

Page 108: ...5 mV actual value stored in EEPROM Temperature coefficient 0 6 ppm C max Long term stability 6 ppm Digital I O Number of channels 8 input output Compatibility TTL CMOS Power on state Input High Z Data...

Page 109: ...nter timers 20 MHz 100 kHz Frequency scaler 10 MHz 100 kHz Base clock accuracy 0 01 Max source frequency 20 MHz Min source pulse duration 10 ns edge detect mode Min gate pulse duration 10 ns edge dete...

Page 110: ...Trigger Compatibility TTL Response Rising or falling edge Pulse width 10 ns min VXIbus Trigger Trigger lines Supports 5 TTL and 2 ECL trigger lines Power Requirement 5 VDC 2 82 A typ 3 38 A max Not i...

Page 111: ...dix B This appendix describes the connectors on the optional cables for the VXI MIO Series modules Figure B 1 shows the pin assignments for the 68 pin MIO connector This connector is one of the two 68...

Page 112: ...H6 ACH13 AIGND ACH4 AIGND ACH3 ACH10 AIGND ACH1 ACH8 DGND PFI8 GPCTR0_SOURCE PFI7 STARTSCAN GPCTR1_OUT PFI4 GPCTR1_GATE PFI3 GPCTR1_SOURCE PFI2 CONVERT DGND DGND DGND EXTSTROBE SCANCLK DIO3 DIO7 DIO2...

Page 113: ...C NC NC NC NC NC NC NC ACH 55 ACH 54 ACH 61 ACH 52 ACH 51 ACH 58 ACH 49 ACH 48 ACH 47 ACH 38 ACH 37 ACH 44 AIGND ACH 35 ACH 34 ACH 41 ACH 32 ACH 23 ACH 30 ACH 21 ACH 20 ACH 27 ACH 18 ACH 17 ACH 24 NC...

Page 114: ...nfigured independently with timing resolutions of 50 ns or 10 s With the DAQ STC you can interconnect a wide variety of internal timing signals to other internal blocks The interconnection scheme is q...

Page 115: ...e VXI MIO 64E 1 or VXI MIO 64XE 10 modules 7 What is the best way to test my module without having to program the module The NI DAQ Configuration Utility formerly WDAQCONF has a Test menu with some ex...

Page 116: ...voltage to another any DAC produces glitches due to released charges The largest glitches occur when the most significant bit MSB of the D A code switches You can build a lowpass deglitching filter t...

Page 117: ...y when the analog output waveform generation starts If you are using NI DAQ call DAQ_Start with appropriate parameters If you are using LabVIEW invoke the AI Control VI with control code set to 0 star...

Page 118: ...ers and counts how many points have been transferred If all the points have been transferred and the first instance of this error occurs NI DAQ returns a gpctrDataTransferWarning indicating that the e...

Page 119: ...power on states of the PFI and DIO lines on the I O connector At system power on and reset both the PFI and DIO lines are set to high impedance by the hardware This means that the module circuitry is...

Page 120: ...t through our technical support centers which are staffed by applications engineers Electronic Services National Instruments has BBS and FTP sites dedicated for 24 hour support with a collection of fi...

Page 121: ...ional Instruments office in your country contact the source from which you purchased your software to obtain support Telephone Fax Australia 03 9879 5166 03 9879 6277 Austria 0662 45 79 90 0 0662 45 7...

Page 122: ...__________________________________________________________ National Instruments hardware product model_________ Revision ________________________ Configuration ________________________________________...

Page 123: ...____________________________________________________ Other Products Computer Model ______________________________________________________________ Microprocessor _______________________________________...

Page 124: ...___________________________________________________________________________ _______________________________________________________________________________ ____________________________________________...

Page 125: ...es User Manual Symbols degree negative of or minus ohm per percent plus or minus positive of or plus square root of 5V 5 VDC source signal Prefix Meaning Value p pico 10 12 n nano 10 9 micro 10 6 m mi...

Page 126: ...nel signal A D analog to digital ADC A D converter address space A set of 2n memory locations differentiated from other such sets in VXI VMEbus systems by six addressing lines known as address modifie...

Page 127: ...itive and negative values for example 5 to 5 V bit One binary digit either 0 or 1 bus The group of conductors that interconnect individual circuitry in a computer Typically a bus is the expansion vehi...

Page 128: ...cturer address space and memory requirements In order to support automatic system and memory configuration the VXIbus specification requires that all VXIbus devices have a set of such registers 2 The...

Page 129: ...XIbus system as a single device Some examples of devices are computers multimeters multiplexers oscillators operator interfaces and counters DGND digital ground signal DIFF differential mode different...

Page 130: ...o of the largest signal level a circuit can handle to the smallest signal level it can handle usually taken to be the noise level normally expressed in dB E ECL Emitter Coupled Logic EEPROM electrical...

Page 131: ...time This again reduces the effect of latencies associated with getting the data from system memory to the DAQ device floating signal sources Signal sources with voltage signals that are not connecte...

Page 132: ...nts of a computer system such as the circuit boards plug in boards chassis enclosures peripherals cables and so on hardware triggering A form of triggering where you set the start time of an acquisiti...

Page 133: ...where there is a longer interval between scans than there is between individual channels comprising a scan I O input output The transfer of data to from a computer system involving communications cha...

Page 134: ...ard assembly and its associated mechanical parts front panel optional shields and so on A module contains everything required to occupy one or more slots in a mainframe MSB most significant bit multit...

Page 135: ...oftware OLE also makes it possible to create compound documents consisting of multiple sources of information from different applications onboard channels Channels provided by the plug in data acquisi...

Page 136: ...such as the earth or a building ground Also called grounded signal sources relative accuracy A measure in LSB of the accuracy of an ADC It includes all non linearity and quantization errors It does n...

Page 137: ...se from the scan clock produces one scan which acquires one new sample from every analog input channel in the group scan clock The clock controlling the time interval between scans On boards with inte...

Page 138: ...through software that is it is not dynamically configurable system A system consists of one or more mainframes that are connected all sharing a common Resource Manager Each device in a system has a u...

Page 139: ...to every analog output channel in the group UPDATE update signal update rate The number of output updates per second V V volts VDC volts direct current VI Virtual Instrument 1 A combination of hardwa...

Page 140: ...ts VXIplug play Systems A group of VXI developers dedicated to making VXI devices as Alliance easy to use as possible primarily by simplifying software development W waveform Multiple voltage readings...

Page 141: ...amplifier characteristics VXI MIO 64E 1 A 3 VXI MIO 64XE 10 A 11 analog input 3 3 to 3 9 common questions about C 2 to C 4 considerations for selecting input ranges 3 6 dither 3 7 to 3 8 input modes...

Page 142: ...board configuration See configuration bulletin board support D 1 C cables See also I O connectors field wiring considerations 4 45 optional cable connectors 68 pin extended analog input connector pin...

Page 143: ...4 15 illustration 4 15 nonreferenced or floating signal sources 4 16 to 4 17 illustration 4 16 recommended configuration figure 4 13 single ended connections 4 18 floating signal sources RSE 4 19 grou...

Page 144: ...orm generation timing connections 4 44 frequently asked questions See questions about VXI MIO series FTP support D 1 G general purpose timing signal connections 4 38 to 4 44 FREQ_OUT signal 4 44 GPCTR...

Page 145: ...to 4 20 available input modes 3 3 to 3 4 DIFF table 3 3 NRSE table 3 3 RSE table 3 3 common mode signal rejection 4 20 differential connections DIFF input configuration 4 14 floating signal sources 4...

Page 146: ...VERT signal description table 4 4 VXI MIO 64E 1 table 4 6 VXI MIO 64XE 10 table 4 8 PFI3 GPCTR1_SOURCE signal description table 4 4 VXI MIO 64E 1 table 4 6 VXI MIO 64XE 10 table 4 8 PFI4 GPCTR1_GATE s...

Page 147: ...1 to C 2 installation and configuration C 2 timing and digital I O C 4 to C 6 R reference selection analog output 3 10 referenced single ended input RSE See RSE referenced single ended input reglitch...

Page 148: ...4 programmable function input connections 4 24 to 4 25 waveform generation timing connections 4 34 to 4 38 UISOURCE signal 4 37 to 4 38 UPDATE signal 4 36 to 4 37 WFTRIG signal 4 34 types of signal so...

Page 149: ...A 7 VXI MIO 64XE 10 A 14 STARTSCAN signal timing connections 4 30 to 4 31 input timing figure 4 30 output timing figure 4 31 T technical support D 1 to D 2 theory of operation See hardware overview ti...

Page 150: ...gure 3 13 below low level triggering mode figure 3 12 block diagram 3 12 high hysteresis triggering mode 3 13 inside region triggering mode figure 3 13 low hysteresis triggering mode 3 14 specificatio...

Page 151: ...ng choices ComponentWorks 1 2 LabVIEW and LabWindows CVI 1 3 NI DAQ driver software 1 3 to 1 4 VirtualBench 1 3 unpacking 1 6 VXIplug play instrument drivers 1 4 to 1 5 VXIplug play instrument drivers...

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