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VXI-MIO Series User Manual Multifunction I/O Modules 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 website at http://www.
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Important Information Warranty The VXI-MIO Series boards are warranted against defects in materials and workmanship for a period of one year from the date of shipment, as evidenced by receipts or other documentation. National Instruments will, at its option, repair or replace equipment that proves to be defective during the warranty period.
National Instruments Corporation v VXI-MIO Series User Manual About This Manual Organization of This Manual ........................................................................................ xi Conventions Used in This Manual ...............
T able of Contents VXI-MIO Series User Manual vi National Instruments Corporation Chapter 3 Hardware Overview Analog Input ................................................................................................................. 3-3 Input Mode .
T able of Contents National Instruments Corporation vii VXI-MIO Series User Manual Power Connections ........................................................................................................ 4-23 Timing Connections .................
T able of Contents VXI-MIO Series User Manual viii National Instruments Corporation Appendix A Specifications VXI-MIO-64E-1 ........................................................................................................... A-1 VXI-MIO-64XE-10 .
T able 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.
T able of Contents VXI-MIO Series User Manual x National Instruments Corporation Tables Table 2-1. VXI-MIO Series DRAM Configuration .................................................. 2-6 Table 3-1. Available Input Configurations for the VXI-MIO Series .
About This Manual National Instruments Corporation xi VXI-MIO Series User Manual This manual describes the electrical and mechanical aspects of each module in the VXI-MIO Series product line and contains information concerning their installation, operation, and programming.
About This Manual VXI-MIO Series User Manual xii National Instruments Corporation • Appendix C, Common Questions , contains a list of commonly asked questions and their answers relating to usage and special features of your VXI-MIO Series module.
About This Manual National Instruments Corporation xiii VXI-MIO Series User Manual National Instruments Documentation The VXI-MIO Series User Manual is one piece of the documentation set for your VXI-DAQ system. You could have any of several types of manuals depending on the hardware and software in your system.
About This Manual VXI-MIO Series User Manual xiv National Instruments Corporation Related Documentation The following National Instruments document contains information you may find helpful: • A.
National Instruments Corporation 1-1 VXI-MIO Series User Manual Introduction Chapter 1 This chapter describes 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 1 Introduction VXI-MIO Series User Manual 1-2 National Instruments Corporation What You Need to Get Started To set up and use your VXI-MIO Series module, you will need the following: ❑ O.
Chapter 1 Introduction National Instruments Corporation 1-3 VXI-MIO Series User Manual LabVIEW features interactive graphics, a state-of-the-art user interface, and a powerful graphical programming language.
Chapter 1 Introduction VXI-MIO Series User Manual 1-4 National Instruments Corporation DAQ devices because it lets multiple devices operate at their peak performance. NI-DAQ also internally addresses many of the complex issues between the computer and the DAQ hardware such as programming interrupts and DMA controllers.
Chapter 1 Introduction National Instruments Corporation 1-5 VXI-MIO Series User Manual Figure 1-1. The Relationship between the Programming Environment, Your Instrument Driver, and Your VXI-DAQ Ha.
Chapter 1 Introduction VXI-MIO Series User Manual 1-6 National Instruments Corporation Custom Cabling Mating connectors and a backshell kit for making custom 96-pin cables for your VXI-MIO Series module are available from National Instruments.
National Instruments Corporation 2-1 VXI-MIO Series User Manual Configuration and Installation Chapter 2 This chapter explains how to configure and install your VXI-MIO Series module. Module Configuration The VXI-MIO Series modules are software-configurable, except for the VXIbus logical address.
Chapter 2 Configuration and Installation VXI-MIO Series User Manual 2-2 National Instruments Corporation Your VXI-MIO Series module does not support dynamic configuration of its logical address. Ensure that no other statically configurable VXIbus modules have the same logical address as the VXI-MIO Series module.
Chapter 2 Configuration and Installation National 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 4P.
Chapter 2 Configuration and Installation VXI-MIO Series User Manual 2-4 National Instruments 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.
Chapter 2 Configuration and Installation National Instruments Corporation 2-5 VXI-MIO Series User Manual Figure 2-3. VXI-MIO-64XE-10 Logical Address Selection SIMM Size Each VXI-MIO module can accommodate up to two 1.35 in. DRAM SIMMs. Table 2-1 lists the SIMMS you can use.
Chapter 2 Configuration and Installation VXI-MIO Series User Manual 2-6 National Instruments Corporation accessible with the cover on. To access the SIMM sockets, perform the following steps: 1. Remove the four screws on the top, the four screws on the bottom, and the three screws on the right-side cover of the metal enclosure.
Chapter 2 Configuration and Installation National Instruments Corporation 2-7 VXI-MIO Series User Manual Load USER/FACTORY Configuration The VXI-MIO module has an onboard EEPROM, which stores default register values that are loaded at power-on. The EEPROM is divided into two halves—a factory-configuration half, and a user-configuration half.
Chapter 2 Configuration and Installation VXI-MIO Series User Manual 2-8 National Instruments Corporation Figure 2-5. Load User/Factory Configuration Protect/Change Factory Configuration Use switch S1 to change the factory-default configuration settings by permitting writes to the factory settings section of the EEPROM.
Chapter 2 Configuration and Installation National Instruments Corporation 2-9 VXI-MIO Series User Manual 2. Remove or open any doors or covers blocking access to the mainframe slots. 3. If you are installing your VXI-DAQ module into a D-size mainframe, first install an appropriate support for C-size modules in D-size mainframes.
Chapter 2 Configuration and Installation VXI-MIO Series User Manual 2-10 National Instruments Corporation If you are using LabWindows/CVI, refer to your LabWindows/CVI release notes to install your application software.
National Instruments Corporation 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 the VXI-MIO Series modules.
Chapter 3 Hardware Overview VXI-MIO Series User Manual 3-2 National Instruments Corporation Figure 3-1. VXI-MIO Series Block Diagram EEPROM Config EPROM VXI Transceivers P1 MANTIS P2 MANTIS VXI Trigger and Clock Circuitry N.
Chapter 3 Hardware Overview National Instruments Corporation 3-3 VXI-MIO Series User Manual Analog Input The analog input section of each VXI-MIO Series module is software configurable. You can select different analog input configurations through application software designed to control the VXI-MIO Series modules.
Chapter 3 Hardware Overview VXI-MIO Series User Manual 3-4 National Instruments Corporation For more information about the three types of input configuration, refer to the Analog Input Signal Connections section in Chapter 4, Signal Connections , which contains diagrams showing the signal paths for the three configurations.
Chapter 3 Hardware Overview National Instruments Corporation 3-5 VXI-MIO Series User Manual ♦ VXI-MIO-64XE-10 This module has two input polarities—unipolar and bipolar. The VXI-MIO-64XE-10 has a unipolar input range of 10 V (0 to 10 V) and a bipolar input range of 20 V ( ± 10 V).
Chapter 3 Hardware Overview VXI-MIO Series User Manual 3-6 National Instruments Corporation the overall input range and precision according to the configuration and gain used. Considerations for Selecting Input Ranges Which input polarity and range you select depends on the expected range of the incoming signal.
Chapter 3 Hardware Overview National Instruments Corporation 3-7 VXI-MIO Series User Manual Dither When you enable dither, you add approximately 0.
Chapter 3 Hardware Overview VXI-MIO Series User Manual 3-8 National Instruments Corporation Figure 3-2. Dither You cannot disable dither on the VXI-MIO-64XE-10. This is because the ADC resolution is so fine that the ADC and the PGIA inherently produce almost 0.
Chapter 3 Hardware Overview National Instruments Corporation 3-9 VXI-MIO Series User Manual signal is connected to channel 1, and suppose the PGIA is programmed to apply a gain of one to channel 0 and a gain of 100 to channel 1.
Chapter 3 Hardware Overview VXI-MIO Series User Manual 3-10 National Instruments Corporation Analog Output ♦ VXI-MIO-64E-1 This module supplies two channels of analog output voltage at the I/O connector. The reference and range for the analog output circuitry is software-selectable.
Chapter 3 Hardware Overview National Instruments Corporation 3-11 VXI-MIO Series User Manual ♦ VXI-MIO-64XE-10 You can configure each analog output channel for either unipolar or bipolar output. A unipolar configuration has a range of 0 to 10 V at the analog output.
Chapter 3 Hardware Overview VXI-MIO Series User Manual 3-12 National Instruments Corporation Note: The PFI0/TRIG1 pin is a high-impedance input. Therefore, it is susceptible to cross-talk from adjacent pins, which can result in false triggering when the pin is left unconnected.
Chapter 3 Hardware Overview National Instruments Corporation 3-13 VXI-MIO Series User Manual Figure 3-5. Above-High-Level Analog Triggering Mode In inside-region analog triggering mode, the trigger is generated when the signal value is between the lowValue and the highValue.
Chapter 3 Hardware Overview VXI-MIO Series User Manual 3-14 National Instruments Corporation In low-hysteresis analog triggering mode, the trigger is generated when the signal value is less than lowValue , with the hysteresis specified by highValue.
Chapter 3 Hardware Overview National Instruments Corporation 3-15 VXI-MIO Series User Manual Timing Signal Routing The DAQ-STC provides a very flexible interface for connecting timing signals to other modules or external circuitry.
Chapter 3 Hardware Overview VXI-MIO Series User Manual 3-16 National Instruments Corporation This figure shows that CONVERT* can be generated from a number of sources, including the external signals VXI TTL Trig<0..4>, VXI ECL Trig<0..1>, and PFI<0.
Chapter 3 Hardware Overview National Instruments Corporation 3-17 VXI-MIO Series User Manual VXIbus Triggers The VXI-MIO Series modules can use up to seven of the 10 VXIbus trigger lines to coordinate sampling and/or triggering across multiple modules.
National Instruments Corporation 4-1 VXI-MIO Series User Manual Signal Connections Chapter 4 This chapter describes how to make input and output signal connections to your VXI-MIO Series module via the module I/O connector.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-2 National Instruments Corporation Figure 4-1. I/O Connector Pin Assignment for the VXI-MIO-64E-1 and VXI-MIO-64XE-10 ACH63 ACH54 ACH60 AC.
Chapter 4 Signal Connections National Instruments Corporation 4-3 VXI-MIO Series User Manual I/O Connector Signal Descriptions Signal Name Reference Direction Description AIGND — — Analog Input Ground—These pins are the reference point for single-ended measurements and the bias current return point for differential measurements.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-4 National Instruments Corporation SCANCLK DGND Output Scan Clock—This pin pulses once for each A/D conversion in the scanning modes when enabled. The low-to-high edge indicates when the input signal can be removed from the input or switched to another signal.
Chapter 4 Signal Connections National Instruments Corporation 4-5 VXI-MIO Series User Manual PFI5/UPDATE* DGND Input Output PFI5/Update—As an input, this is one of the PFIs. As an output, this is the UPDATE* signal. A high-to-low edge on UPDATE* indicates that the analog output primary group is being updated.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-6 National Instruments Corporation Table 4-1 shows the I/O signal summary for the VXI-MIO-64E-1. Table 4-1. VXI-MIO-64E-1 I/O Signal Summary Signal Name Drive Impedance Input/ Output Protection (Volts) Power On/Off Source (mA at V) Sink (mA at V) Rise Time (ns) Bias ACH<0.
Chapter 4 Signal Connections National Instruments Corporation 4-7 VXI-MIO Series User Manual GPCTR1_OUT DO — — 3.5 at (4.6 V) 5 at 0.4 1.5 50 k Ω pu PFI5/UPDATE* DIO — 5.5 V 3.5 at (4.6 V) 5 at 0.4 1.5 50 k Ω pu PFI6/WFTRIG DIO — 5.5 V 3.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-8 National Instruments Corporation Table 4-2 shows the I/O signal summary for the VXI-MIO-64XE-10. Table 4-2. VXI-MIO-64XE-10 I/O Signal Summary Signal Name Drive Impedance Input/ Output Protection (Volts) Power On/Off Source (mA at V) Sink (mA at V) Rise Time (ns) Bias ACH<0.
Chapter 4 Signal Connections National Instruments Corporation 4-9 VXI-MIO Series User Manual Analog Input Signal Connections The VXI-MIO-64E-1 and VXI-MIO-64XE-10 analog input signals are ACH<0..63>, AISENSE, AISENSE2, and AIGND. The ACH<0.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-10 National Instruments Corporation In NRSE mode, the AISENSE and AISENSE2 signals are connected internally to the negative input of the VXI-MIO Series module PGIA when their corresponding channels are selected.
Chapter 4 Signal Connections National Instruments Corporation 4-11 VXI-MIO Series User Manual ground. Your VXI-MIO Series module ADC measures this output voltage when it performs A/D conversions. You must reference all signals to ground either at the signal source or at the module.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-12 National Instruments Corporation Input Configurations You can configure your VXI-MIO Series module for one of three input modes—NRSE, RSE, or DIFF.
Chapter 4 Signal Connections National Instruments Corporation 4-13 VXI-MIO Series User Manual Figure 4-3 summarizes the recommended input configuration for both types of signal sources.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-14 National Instruments Corporation Differential Connection Considerations (DIFF Input Configuration) A differential connection is one in which the VXI-MIO Series module analog input signal has its own reference signal or signal return path.
Chapter 4 Signal Connections National Instruments Corporation 4-15 VXI-MIO Series User Manual Differential Connections for Ground-Referenced Signal Sources Figure 4-4 shows how to connect a ground-referenced signal source to a channel on a VXI-MIO Series module configured in DIFF input mode.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-16 National Instruments Corporation Differential Connections for Nonreferenced or Floating Signal Sources Figure 4-5 shows how to connect a floating signal source to a channel on a VXI-MIO Series module configured in DIFF input mode.
Chapter 4 Signal Connections National Instruments Corporation 4-17 VXI-MIO Series User Manual any resistors at all. This connection works well for DC-coupled sources with low source impedance (less than 100 Ω ). However, for larger source impedances, this connection leaves the differential signal path significantly out of balance.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-18 National Instruments Corporation Single-Ended Connection Considerations A single-ended connection is one in which the VXI-MIO Series module analog input signal is referenced to a ground that can be shared with other input signals.
Chapter 4 Signal Connections National Instruments Corporation 4-19 VXI-MIO Series User Manual Single-Ended Connections for Floating Signal Sources (RSE Configuration) Figure 4-6 shows how to connect a floating signal source to a channel on the VXI-MIO Series module configured for RSE mode.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-20 National Instruments Corporation Figure 4-7. Single-Ended Input Connections for Ground-Referenced Signal Common-Mode Signal Rejection C.
Chapter 4 Signal Connections National Instruments Corporation 4-21 VXI-MIO Series User Manual external reference input to be used by that channel. If you do not specify an external reference, the channel will use the internal reference. You cannot use an external analog output reference with the VXI-MIO-64XE-10.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-22 National Instruments Corporation Digital I/O Signal Connections The digital I/O signals are DIO<0..7> and DGND. DIO<0..7> are the signals making up the DIO port, and DGND is the ground reference signal for the DIO port.
Chapter 4 Signal Connections National Instruments Corporation 4-23 VXI-MIO Series User Manual Figure 4-9 shows DIO<0, 2..3, 5..6> configured for digital input and DIO<1, 4, 7> configured for digital output. Digital input applications include receiving TTL signals and sensing external device states such as the state of the switch.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-24 National Instruments Corporation Connections section later in this chapter. The general-purpose timing signals are explained in the General-Purpose Timing Signal Connections section later in this chapter.
Chapter 4 Signal Connections National Instruments Corporation 4-25 VXI-MIO Series User Manual driver for the PFI2/CONVERT* pin. Be careful not to drive a PFI signal externally when it is configured as an output. As an input, you can individually configure each PFI for edge or level detection and also for polarity selection.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-26 National Instruments Corporation Figure 4-12. Typical Pretriggered Acquisition SCANCLK Signal SCANCLK is an output-only signal that generates a pulse with the leading edge occurring approximately 50 to 100 ns after an A/D conversion begins.
Chapter 4 Signal Connections National Instruments Corporation 4-27 VXI-MIO Series User Manual signal level. A 10 and 1.2 µ s clock is available for generating a sequence of eight pulses in the hardware-strobe mode. Figure 4-14 shows the timing for the hardware-strobe mode EXTSTROBE* signal.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-28 National Instruments Corporation Figure 4-15. TRIG1 Input Signal Timing Figure 4-16. TRIG1 Output Signal Timing The module also uses the TRIG1 signal to initiate pretriggered data acquisition operations.
Chapter 4 Signal Connections National Instruments Corporation 4-29 VXI-MIO Series User Manual scans before TRIG2 can be recognized. After the scan counter decrements to zero, it is loaded with the number of posttrigger scans to acquire while the acquisition continues.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-30 National Instruments Corporation STARTSCAN Signal Any PFI pin can externally input the STARTSCAN signal, which is available as an output on the PFI7/STARTSCAN pin. Refer to Figures 4-11 and 4-12 for the relationship of STARTSCAN to the data acquisition sequence.
Chapter 4 Signal Connections National Instruments Corporation 4-31 VXI-MIO Series User Manual Figure 4-20. STARTSCAN Output Signal Timing The CONVERT* pulses are masked off until the module generates the STARTSCAN signal.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-32 National Instruments Corporation CONVERT* Signal Any PFI pin can externally input the CONVERT* signal, which is available as an output on the PFI2/CONVERT* pin. Refer back to Figures 4-11 and 4-12 for the relationship of CONVERT* to the data acquisition sequence.
Chapter 4 Signal Connections National Instruments Corporation 4-33 VXI-MIO Series User Manual Figure 4-22. CONVERT* Output Signal Timing The ADC switches to hold mode within 60 ns of the selected edge. This hold-mode delay time is a function of temperature and does not vary from one conversion to the next.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-34 National Instruments Corporation AIGATE does not gate off conversions until the beginning of the next scan and, conversely, if conversions are being gated off, AIGATE does not gate them back on until the beginning of the next scan.
Chapter 4 Signal Connections National Instruments Corporation 4-35 VXI-MIO Series User Manual As an input, the WFTRIG signal is configured in the edge-detection mode. You can select any PFI pin as the source for WFTRIG and configure the polarity selection for either rising or falling edge.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-36 National Instruments Corporation UPDATE* Signal Any PFI pin can externally input the UPDATE* signal, which is available as an output on the PFI5/UPDATE* pin. As an input, the UPDATE* signal is configured in the edge-detection mode.
Chapter 4 Signal Connections National Instruments Corporation 4-37 VXI-MIO Series User Manual Figure 4-26. UPDATE* Input Signal Timing Figure 4-27. UPDATE* Output Signal Timing The DACs are updated within 100 ns of the leading edge. Separate the UPDATE* pulses with enough time that new data can be written to the DAC latches.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-38 National Instruments Corporation polarity selection for the PFI pin for either active high or active low.
Chapter 4 Signal Connections National Instruments Corporation 4-39 VXI-MIO Series User Manual Figure 4-29 shows the timing requirements for the GPCTR0_SOURCE signal. Figure 4-29. GPCTR0_SOURCE Signal Timing The maximum allowed frequency is 20 MHz, with a minimum pulse width of 23 ns high or low.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-40 National Instruments Corporation Figure 4-30. GPCTR0_GATE Signal Timing in Edge-Detection Mode GPCTR0_OUT Signal This signal is available only as an output on the GPCTR0_OUT pin. The GPCTR0_OUT signal reflects the terminal count (TC) of general-purpose counter 0.
Chapter 4 Signal Connections National Instruments Corporation 4-41 VXI-MIO Series User Manual GPCTR1_SOURCE Signal Any PFI pin can externally input the GPCTR1_SOURCE signal, which is available as an output on the PFI3/GPCTR1_SOURCE pin. As an input, the GPCTR1_SOURCE signal is configured in the edge-detection mode.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-42 National Instruments Corporation configure the polarity selection for either rising or falling edge.
Chapter 4 Signal Connections National Instruments Corporation 4-43 VXI-MIO Series User Manual Figure 4-34. GPCTR1_OUT Signal Timing GPCTR1_UP_DOWN Signal This signal can be externally input on the DIO7 pin and is not available as an output on the I/O connector.
Chapter 4 Signal Connections VXI-MIO Series User Manual 4-44 National Instruments Corporation The GATE and OUT signal transitions shown in Figure 4-35 are referenced to the rising edge of the SOURCE signal. This timing diagram assumes that the counters are programmed to count rising edges.
Chapter 4 Signal Connections National Instruments Corporation 4-45 VXI-MIO Series User Manual Field Wiring Considerations Environmental noise can seriously affect the accuracy of measurements made with your VXI-MIO Series module if you do not take proper care when running signal wires between signal sources and the module.
National Instruments Corporation 5-1 VXI-MIO Series User Manual Calibration Chapter 5 This chapter discusses the calibration procedures for your VXI-MIO Series module. NI-DAQ and the VXI plug&play instrument drivers include calibration functions for performing all of the steps in the calibration process.
Chapter 5 Calibration VXI-MIO Series User Manual 5-2 National Instruments Corporation the CalDACs with values either from the original factory calibration or from a calibration that you subsequently performed.
Chapter 5 Calibration National Instruments Corporation 5-3 VXI-MIO Series User Manual module by calling the NI-DAQ or VXI plug&play instrument driver calibration function. To externally calibrate your module, be sure to use a very accurate external reference.
National Instruments Corporation A-1 VXI-MIO Series User Manual Specifications Appendix A This appendix lists the specifications 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 .
Appendix A Specifications for VXI-MIO-64E-1 VXI-MIO Series User Manual A-2 National Instruments Corporation Input coupling ....................................DC Max working voltage (signal + common mode)................. Each input should remain within ± 11 V of ground Overvoltage protection .
Appendix A Specifications for VXI-MIO-64E-1 National Instruments Corporation A-3 VXI-MIO Series User Manual Transfer Characteristics Relative accuracy ............................. ± 0.5 LSB typ dithered, ± 1.5 LSB max undithered DNL ..........
Appendix A Specifications for VXI-MIO-64E-1 VXI-MIO Series User Manual A-4 National Instruments Corporation Dynamic Characteristics Crosstalk ............................................ -70 dB, DC to 100 kHz Stability Recommended warm-up time ..
Appendix A Specifications for VXI-MIO-64E-1 National Instruments Corporation A-5 VXI-MIO Series User Manual Analog Output Output Characteristics Number of channels .......................... 2 voltage Resolution ..................................
Appendix A Specifications for VXI-MIO-64E-1 VXI-MIO Series User Manual A-6 National Instruments Corporation Gain error (relative to external reference) ........... +0% to +0.5% of output max, not adjustable Voltage Output Ranges .................
Appendix A Specifications for VXI-MIO-64E-1 National Instruments Corporation A-7 VXI-MIO Series User Manual Onboard calibration reference Level ........................................... 5.000 V ( ± 0.5 mV) (actual value stored in EEPROM) Temperature coefficient .
Appendix A Specifications for VXI-MIO-64E-1 VXI-MIO Series User Manual A-8 National Instruments Corporation Frequency scalers ....................... 10 MHz, 100 kHz Base clock accuracy ........................... ± 0.01% Max source frequency ..
Appendix A Specifications for VXI-MIO-64E-1 National Instruments Corporation A-9 VXI-MIO Series User Manual Power Requirement +5 VDC ............................................. 1.80 A typ; 2.16 A max* (*Not including current used by accessories.
Appendix A Specifications for VXI-MIO-64XE-10 VXI-MIO Series User Manual A-10 National Instruments Corporation VXI-MIO-64XE-10 Analog Input Input Characteristics Number of channels ........................... 64 single-ended or 32 differential (software selectable) Type of ADC .
Appendix A Specifications for VXI-MIO-64XE-10 National Instruments Corporation A-11 VXI-MIO Series User Manual Transfer Characteristics Relative accuracy .............................. ± 0.75 LSB typ, ± 1 LSB max DNL ...........................
Appendix A Specifications for VXI-MIO-64XE-10 VXI-MIO Series User Manual A-12 National Instruments Corporation Dynamic Characteristics Bandwidth All gains ..................................... 255 kHz Settling time for full-scale step, all gains and ranges To ± 0.
Appendix A Specifications for VXI-MIO-64XE-10 National Instruments Corporation A-13 VXI-MIO Series User Manual Analog Output Output Characteristics Number of channels .......................... 2 voltage Resolution ...............................
Appendix A Specifications for VXI-MIO-64XE-10 VXI-MIO Series User Manual A-14 National Instruments Corporation Stability Offset temperature coefficient ............ ± 50 µ V/ ° C Gain temperature coefficient .............. ± 7.5 ppm/ ° C Onboard calibration reference Level .
Appendix A Specifications for VXI-MIO-64XE-10 National Instruments Corporation A-15 VXI-MIO Series User Manual Timing I/O Number of channels .......................... 2 up/down counter/timers, 1 frequency scaler Resolution Counter/timers .......
Appendix A Specifications for VXI-MIO-64XE-10 VXI-MIO Series User Manual A-16 National Instruments Corporation External input (PFI0/TRIG1) Impedance .................................. 10 k Ω Coupling ..................................... DC Protection .
National Instruments Corporation B-1 VXI-MIO Series User Manual Optional Cable Connector Descriptions Appendix 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.
Appendix B Optional Cable Connector Descriptions VXI-MIO Series User Manual B-2 National Instruments Corporation Figure B-1. 68-Pin MIO Connector Pin Assignments FREQ_OUT GPCTR0_OUT PFI9/GPCTR0_GA.
Appendix B Optional Cable Connector Descriptions National Instruments Corporation B-3 VXI-MIO Series User Manual Figure B-2 shows the pin assignments for the 68-pin extended analog input connector. This is the other 68-pin connector available when you use the SH966868 cable assembly with the VXI-MIO-64E-1 or VXI-MIO-64XE-10.
National Instruments Corporation C-1 VXI-MIO Series User Manual Common Questions Appendix C This appendix contains a list of commonly asked questions and their answers relating to usage and special features of your VXI-MIO Series module. General Information 1.
Appendix C Common Questions VXI-MIO Series User Manual C-2 National Instruments Corporation 3. What type of 5 V protection do the VXI-MIO Series modules have? The VXI-MIO Series modules have 5 V lines equipped with a self-resetting 1 A fuse. Installation and Configuration 4.
Appendix C Common Questions National Instruments Corporation C-3 VXI-MIO Series User Manual while maintaining a high common-mode rejection ratio (CMRR).
Appendix C Common Questions VXI-MIO Series User Manual C-4 National Instruments Corporation a. Enable the PFI5 line for output, as follows: If you are using NI-DAQ, call Select_Signal(deviceNumber, ND_PFI_5, ND_OUT_UPDATE, ND_HIGH_TO_LOW) .
Appendix C Common Questions National Instruments Corporation C-5 VXI-MIO Series User Manual analog triggering, selectable logic level, and frequency shift keying.
Appendix C Common Questions National Instruments Corporation C-6 VXI-MIO Series User Manual Gate Config, CTR Mode Config, and CTR Pulse Config advanced level VIs to indicate which function the connected signal will serve. Use the Route Signal VI to enable the PFI lines to output internal signals.
National Instruments Corporation D-1 VXI-MIO Series User Manual Customer Communication Appendix D For your convenience, this appendix contains forms to help you gather the information necessary to help us solve your technical problems and a form you can use to comment on the product documentation.
FaxBack is a 24-hour information retrieval system containing a library of documents on a wide range of technical information. You can access FaxBack from a touch-tone telephone at (512) 418-1111. You can submit technical support questions to the appropriate applications engineering team through e-mail at the Internet addresses listed below.
Technical Support Form Photocopy this form and update it each time you make changes to your software or hardware, and use the completed copy of this form as a reference for your current configuration.
VXI-MIO Series Hardware and Software Configuration Form Record the settings and revisions of your hardware and software on the line to the right of each item. Complete a new copy of this form each time you revise your software or hardware configuration, and use this form as a reference for your current configuration.
Documentation Comment Form National Instruments encourages you to comment on the documentation supplied with our products. This information helps us provide quality products to meet your needs.
National Instruments Corporation G-1 VXI-MIO Series User Manual Symbols ˚ degree – negative of, or minus Ω ohm / per % percent ± plus or minus + positive of, or plus square root of +5V +5 VD.
Glossary VXI-MIO Series User Manual G-2 National Instruments Corporation A A amperes A16 space VXIbus address space equivalent to the VME 64 KB short address space. In VXI, the upper 16 KB of A16 space is allocated for use by VXI module’s configuration registers.
Glossary National Instruments Corporation G-3 VXI-MIO Series User Manual B backplane An assembly, typically a printed circuit board, with 96-pin connectors and signal paths that bus the connector pins.
Glossary VXI-MIO Series User Manual G-4 National Instruments Corporation command Any communication, from a Commander to a Message-Based- Servant, that consists of a write to the Servants Data Low register, possibly preceded by a write to the Data High or Data High and Data Extended registers.
Glossary National Instruments Corporation G-5 VXI-MIO Series User Manual default setting A default parameter value recorded in the driver. In many cases, the default input of a control is a certain value (often 0) that means use the current default setting.
Glossary VXI-MIO Series User Manual G-6 National Instruments Corporation dual-access memory Memory that can be sequentially, but not simultaneously, accessed by more than one controller or processor. Also known as shared memory. dual-ported memory Memory that can be simultaneously accessed by more than one controller or processor.
Glossary National Instruments Corporation G-7 VXI-MIO Series User Manual F FIFO first-in-first-out memory buffer—The first data stored is the first data sent to the acceptor. FIFOs are often used on DAQ devices to temporarily store incoming or outgoing data until that data can be retrieved or output.
Glossary VXI-MIO Series User Manual G-8 National Instruments Corporation GPCTR1_SOURCE general purpose counter 1 clock source signal group A collection of digital ports, combined to form a larger entity for digital input and/or output. Groups can contain analog input, analog output, digital input, digital output, or counter/timer channels.
Glossary National Instruments Corporation G-9 VXI-MIO Series User Manual set the input range and polarity, while you can program them for other boards. Most boards have programmable gains. instrument driver A set of high-level software functions that controls a specific VXI or RS-232 programmable instrument or a specific plug-in DAQ board.
Glossary VXI-MIO Series User Manual G-10 National Instruments Corporation M m meters mainframe The chassis of a VXIbus system that mechanically contains VXI modules inserted into the backplane, ensuring that connectors fit properly and that adjacent modules do not contact each other.
Glossary National Instruments Corporation G-11 VXI-MIO Series User Manual internal sources such as semiconductors, resistors, and capacitors. Noise corrupts signals you are trying to send or receive.
Glossary VXI-MIO Series User Manual G-12 National Instruments Corporation plug and play devices Devices that do not require dip switches or jumpers to configure resources on the devices—also called switchless devices. port (1) A communications connection on a computer or a remote controller.
Glossary National Instruments Corporation G-13 VXI-MIO Series User Manual rms root mean square RSE referenced single-ended mode—All measurements are made with respect to a common reference measurement system or a ground. Also called a grounded measurement system.
Glossary VXI-MIO Series User Manual G-14 National Instruments Corporation signal Any communication between message-based devices consisting of a write to a Signal register. SIMM Single In-line Memory Module SISOURCE SI counter clock signal slot A position where a module can be inserted into a VXIbus backplane.
Glossary National Instruments Corporation G-15 VXI-MIO Series User Manual U UI update interval UISOURCE update interval counter clock signal unipolar Unipolar input means that the input voltage range is between 0 and V ref , where V ref is a positive reference voltage.
Glossary VXI-MIO Series User Manual G-16 National Instruments Corporation VXIbus VMEbus eXtensions for Instrumentation VXIbus trigger lines These are the eight TTL and two ECL lines on the VXIbus backplane which are used for intermodule communication.
National Instruments Corporation I -1 VXI-MIO Series User Manual Index Numbers +5 V signal description, 4-3 power connections, 4-23 VXI-MIO-64E-1 (table), 4-6 VXI-MIO-64XE-10 (table), 4-8 A ACH<0..15> signal (table), 4-3 ACH<0..63> signal analog input connections, 4-9 VXI-MIO-64XE-10 (table), 4-8 ACH<16.
Index VXI-MIO Series User Manual I -2 National Instruments Corporation transfer characteristics, A-5 to A-6 voltage output, A-6 VXI-MIO-64XE-10 dynamic characteristics, A-13 output characteristics.
Index National Instruments Corporation I -3 VXI-MIO Series User Manual D DAC0OUT signal analog output connections, 4-20 to 4-21 description (table), 4-3 VXI-MIO-64E-1 (table), 4-6 VXI-MIO-64XE-10 .
Index VXI-MIO Series User Manual I -4 National Instruments Corporation e-mail support, D-2 environment specifications VXI-MIO-64E-1, A-9 VXI-MIO-64XE-10, A-16 environmental noise, avoiding, 4-45 e.
Index National Instruments Corporation I -5 VXI-MIO Series User Manual H hardware installation, 2-8 to 2-9 hardware overview analog input, 3-3 to 3-9 considerations for selecting input ranges, 3-6.
Index VXI-MIO Series User Manual I -6 National Instruments Corporation L LabVIEW and LabWindows/CVI software, 1-3 M manual. See documentation. memory.
Index National Instruments Corporation I -7 VXI-MIO Series User Manual common-mode signal rejection, 4-20 differential connections floating signal sources, 4-16 to 4-17 ground-referenced signal so.
Index VXI-MIO Series User Manual I -8 National Instruments Corporation 4-3 to 4-5 power connections, 4-23 timing connections, 4-23 to 4-44 data acquisition timing connections, 4-25 to 4-34 AIGATE .
Index National Instruments Corporation I -9 VXI-MIO Series User Manual digital I/O, A-7 environment, A-9 physical, A-9 power requirements, A-9 timing I/O, A-7 to A-8 triggers, A-8 analog trigger, .
Index VXI-MIO Series User Manual I -10 National Instruments Corporation waveform generation timing connections, 4-34 to 4-38 UISOURCE signal, 4-37 to 4-38 UPDATE* signal, 4-36 to 4-37 WFTRIG signa.
Index National Instruments Corporation I -11 VXI-MIO Series User Manual VXI-MIO series. See also hardware overview. common questions about, C-1 to C-6 custom cabling, 1-6 features, 1-1 optional eq.
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