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AT-MIO/AI E Series User Manual Multifunction I/O Boards for the PC AT May 1996 Edition Part Number 320517E-01 Copyright 1994, 1996 National Instruments Corporation. All Rights Reserved. Click here to comment on this document via the National Instruments website at http://www.
GPIB: gpib.support@natinst.com DAQ: daq.support@natinst.com VXI: vxi.support@natinst.com LabVIEW: lv.support@natinst.com LabWindows: lw.support@natinst.com HiQ: hiq.support@natinst.com E-mail: info@natinst.com FTP Site: ftp.natinst.com Web Address: http://www.
Important Information Warranty The AT-MIO/AI E 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 AT-MIO/AI E Series User Manual About This Manual Organization of This Manual ........................................................................................ xi Conventions Used in This Manual ...........
T able of Contents AT-MIO/AI E Series User Manual vi National Instruments Corporation Chapter 3 Hardware Overview Analog Input ................................................................................................................. 3-6 Input Mode .
T able of Contents National Instruments Corporation vii AT-MIO/AI E Series User Manual Power Connections ........................................................................................................ 4-30 Timing Connections .............
T able of Contents AT-MIO/AI E Series User Manual viii National Instruments Corporation Appendix A Specifications AT-MIO-16E-1, AT-MIO-16E-2 and AT-MIO-64E-3 ................................................ A-1 AT-MIO-16E-10 and AT-MIO-16DE-10 ...
T able of Contents National Instruments Corporation ix AT-MIO/AI E Series User Manual Figure 4-1. I/O Connector Pin Assignment for the AT-MIO-16E-1, AT-MIO-16E-2, AT-MIO-16E-10, AT-MIO-16XE-10, AT-AI-16XE-10, and AT-MIO-16XE-50 ...................
T able of Contents AT-MIO/AI E Series User Manual x National Instruments Corporation Figure B-1. 68-Pin MIO Connector Pin Assignments ................................................ B-2 Figure B-2. 68-Pin DIO Connector Pin Assignments ...........
About This Manual National Instruments Corporation xi AT-MIO/AI E Series User Manual This manual describes the electrical and mechanical aspects of each board in the AT E Series product line and contains information concerning their operation and programming.
About This Manual AT-MIO/AI E Series User Manual xii National Instruments Corporation • Chapter 4, Signal Connections , describes how to make input and output signal connections to your AT E Series board via the board I/O connector. • Chapter 5, Calibration, discusses the calibration procedures for your AT E Series board.
About This Manual National Instruments Corporation xiii AT-MIO/AI E Series User Manual ♦ The ♦ indicates that the text following it applies only to specific AT E Series boards. <> Angle brackets containing numbers separated by an ellipsis represent a range of values associated with a bit, port, or signal name (for example, ACH<0.
About This Manual AT-MIO/AI E Series User Manual xiv National Instruments Corporation relevant pieces of the system. Consult these guides when you are making your connections. • SCXI chassis manuals—If you are using SCXI, read these manuals for maintenance information on the chassis and installation instructions.
National Instruments Corporation 1-1 AT-MIO/AI E Series User Manual Introduction Chapter 1 This chapter describes the AT E Series boards, lists what you need to get started, describes the optional software and optional equipment, and explains how to unpack your AT E Series board.
Chapter 1 Introduction AT-MIO/AI E Series User Manual 1-2 National Instruments Corporation timing event. The AT E Series boards have the Real-Time System Integration (RTSI) bus to solve this problem.
Chapter 1 Introduction National Instruments Corporation 1-3 AT-MIO/AI E Series User Manual Software Programming Choices There are several options to choose from when programming your National Instruments DAQ and SCXI hardware. You can use LabVIEW, LabWindows/CVI, NI-DAQ, or register-level programming.
Chapter 1 Introduction AT-MIO/AI E Series User Manual 1-4 National Instruments Corporation NI-DAQ has both high-level DAQ I/O functions for maximum ease of use and low-level DAQ I/O functions for maximum flexibility and performance. Examples of high-level functions are streaming data to disk or acquiring a certain number of data points.
Chapter 1 Introduction National Instruments Corporation 1-5 AT-MIO/AI E Series User Manual You can use your AT E Series board, together with other PC, AT, EISA, DAQCard, and DAQPad Series DAQ and SCXI hardware, with NI-DAQ software for PC compatibles.
Chapter 1 Introduction AT-MIO/AI E Series User Manual 1-6 National Instruments Corporation Custom Cabling National Instruments offers cables and accessories for you to prototype your application or to use if you frequently change board interconnections.
Chapter 1 Introduction National Instruments Corporation 1-7 AT-MIO/AI E Series User Manual Unpacking Your AT E Series board is shipped in an antistatic package to prevent electrostatic damage to the board. Electrostatic discharge can damage several components on the board.
National Instruments Corporation 2-1 AT-MIO/AI E Series User Manual Installation and Configuration Chapter 2 This chapter explains how to install and configure your AT E Series board. Software Installation You may need to install your software before you install your AT E Series board.
Chapter 2 Installation and Configuration AT-MIO/AI E Series User Manual 2-2 National Instruments Corporation 1. Write down the AT E Series board serial number in the AT E Series Hardware and Software Configuration Form in Appendix D at the back of this manual.
Chapter 2 Installation and Configuration National Instruments Corporation 2-3 AT-MIO/AI E Series User Manual Plug and Play The AT E Series boards are fully compatible with the industry-standard Plug and Play ISA specification.
Chapter 2 Installation and Configuration AT-MIO/AI E Series User Manual 2-4 National Instruments Corporation 16-bit DMA channels, which correspond to channels 5, 6, and 7 in an ISA computer and channels 0, 1, 2, 3, 5, 6, and 7 in an EISA computer.
Chapter 2 Installation and Configuration National Instruments Corporation 2-5 AT-MIO/AI E Series User Manual 300 to 30F 3Com EtherLink – default 310 to 31F — 320 to 32F ICM PC/XT Fixed Disk C.
Chapter 2 Installation and Configuration AT-MIO/AI E Series User Manual 2-6 National Instruments Corporation Table 2-2. PC AT Interrupt Assignment Map IRQ Device 15 Available 14 Fixed Disk Contro.
Chapter 2 Installation and Configuration National Instruments Corporation 2-7 AT-MIO/AI E Series User Manual Note: EISA computers also have channels 0–3 available as 16-bit DMA channels.
National Instruments Corporation 3-1 AT-MIO/AI E Series User Manual Hardware Overview Chapter 3 This chapter presents an overview of the hardware functions on your AT E Series board. Figure 3-1 shows the block diagram for the AT-MIO-16E-1 and AT-MIO-16E-2 Figure 3-1.
Chapter 3 Hardware Overview AT-MIO/AI E Series User Manual 3-2 National Instruments Corporation Figure 3-2 shows the block diagram for the AT-MIO-64E-3.
Chapter 3 Hardware Overview National Instruments Corporation 3-3 AT-MIO/AI E Series User Manual Figure 3-3 shows the block diagram for the AT-MIO-16E-10 and AT-MIO-16DE-10.
Chapter 3 Hardware Overview AT-MIO/AI E Series User Manual 3-4 National Instruments Corporation Figure 3-4 shows a block diagram for the AT-MIO-16XE-10.
Chapter 3 Hardware Overview National Instruments Corporation 3-5 AT-MIO/AI E Series User Manual Figure 3-5 shows a block diagram for the AT-AI-16XE-10.
Chapter 3 Hardware Overview AT-MIO/AI E Series User Manual 3-6 National Instruments Corporation Figure 3-6 shows a block diagram for the AT-MIO-16XE-50. Figure 3-6. AT-MIO-16XE-50 Block Diagram Analog Input The analog input section of each AT E Series board is software configurable.
Chapter 3 Hardware Overview National Instruments Corporation 3-7 AT-MIO/AI E Series User Manual programmed on a per channel basis for multimode scanning. For example, you can configure the circuitry to scan 12 channels—four differentially configured channels and eight single-ended channels.
Chapter 3 Hardware Overview AT-MIO/AI E Series User Manual 3-8 National Instruments Corporation You can program polarity and range settings on a per channel basis so that you can configure each input channel uniquely.
Chapter 3 Hardware Overview National Instruments Corporation 3-9 AT-MIO/AI E Series User Manual ♦ AT-MIO-16XE-10, AT-AI-16XE-10, AT-MIO-16XE-50 These boards have two input polarities—unipolar and bipolar. Unipolar input means that the input voltage range is between 0 and V ref , where V ref is a positive reference voltage.
Chapter 3 Hardware Overview AT-MIO/AI E Series User Manual 3-10 National Instruments Corporation Considerations for Selecting Input Ranges Which input polarity and range you select depends on the expected range of the incoming signal. A large input range can accommodate a large signal variation but reduces the voltage resolution.
Chapter 3 Hardware Overview National Instruments Corporation 3-11 AT-MIO/AI E Series User Manual Dither When you enable dither, you add approximately 0.
Chapter 3 Hardware Overview AT-MIO/AI E Series User Manual 3-12 National Instruments Corporation Figure 3-7. Dither You cannot disable dither on the AT-MIO-16XE-10, AT-AI-16XE-10, or AT-MIO-16XE-50. This is because the resolution of the ADC is so fine that the ADC and the PGIA inherently produce almost 0.
Chapter 3 Hardware Overview National Instruments Corporation 3-13 AT-MIO/AI E Series User Manual constant and source impedances are low. Refer to Appendix A, Specifications , for a complete listing of settling times for each of the AT E Series boards.
Chapter 3 Hardware Overview AT-MIO/AI E Series User Manual 3-14 National Instruments Corporation Analog Output ♦ AT-MIO-16E-1, AT-MIO-16E-2, AT-MIO-64E-3, AT-MIO-16E-10, AT-MIO-16DE-10 The AT E Series boards supply two channels of analog output voltage at the I/O connector.
Chapter 3 Hardware Overview National Instruments Corporation 3-15 AT-MIO/AI E Series User Manual Selecting a bipolar range for a particular DAC means that any data written to that DAC will be interpreted as two’s complement format. In two’s complement mode, data values written to the analog output channel can be either positive or negative.
Chapter 3 Hardware Overview AT-MIO/AI E Series User Manual 3-16 National Instruments Corporation shown in Figure 3-8. The trigger-level range for the direct analog channel is ± 10 V in 78 mV steps for the AT-MIO-16E-1, AT-MIO-16E-2, and AT-MIO-64E-3, and ± 10 V in 4.
Chapter 3 Hardware Overview National Instruments Corporation 3-17 AT-MIO/AI E Series User Manual Figure 3-9. Below-Low-Level Analog Triggering Mode In above-high-level analog triggering mode, the trigger is generated when the signal value is greater than highValue .
Chapter 3 Hardware Overview AT-MIO/AI E Series User Manual 3-18 National Instruments Corporation In high-hysteresis analog triggering mode, the trigger is generated when the signal value is greater than highValue , with the hysteresis specified by lowValue .
Chapter 3 Hardware Overview National Instruments Corporation 3-19 AT-MIO/AI E Series User Manual Digital I/O The AT E Series boards contain eight lines of digital I/O for general-purpose use. You can individually configure each line through software for either input or output.
Chapter 3 Hardware Overview AT-MIO/AI E Series User Manual 3-20 National Instruments Corporation Figure 3-14. CONVERT* Signal Routing This figure shows that CONVERT* can be generated from a number of sources, including the external signals RTSI<0.
Chapter 3 Hardware Overview National Instruments Corporation 3-21 AT-MIO/AI E Series User Manual 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, software can turn on the output driver for the PFI5/UPDATE* pin.
Chapter 3 Hardware Overview AT-MIO/AI E Series User Manual 3-22 National Instruments Corporation Figure 3-15. RTSI Bus Signal Connection Refer to the Timing Connections section of Chapter 4 for a description of the signals shown in Figure 3-15.
National Instruments Corporation 4-1 AT-MIO/AI E Series User Manual Signal Connections Chapter 4 This chapter describes how to make input and output signal connections to your AT E Series board via the board I/O connector.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-2 National Instruments Corporation Figure 4-1. I/O Connector Pin Assignment for the AT-MIO-16E-1, AT-MIO-16E-2, AT-MIO-16E-10, AT-MIO-.
Chapter 4 Signal Connections National Instruments Corporation 4-3 AT-MIO/AI E Series User Manual Figure 4-2. I/O Connector Pin Assignment for the AT-MIO-64E-3 50 100 49 99 48 98 47 97 46 96 45 95 .
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-4 National Instruments Corporation Figure 4-3. I/O Connector Pin Assignment for the AT-MIO-16DE-10 50 100 49 99 48 98 47 97 46 96 45 9.
Chapter 4 Signal Connections National Instruments Corporation 4-5 AT-MIO/AI E 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 AT-MIO/AI E Series User Manual 4-6 National Instruments Corporation DIO<0..7> DGND Input or Output Digital I/O signals—DIO6 and 7 can control the up/down signal of general-purpose counters 0 and 1, respectively.
Chapter 4 Signal Connections National Instruments Corporation 4-7 AT-MIO/AI E Series User Manual PFI2/CONVERT* DGND Input Output PFI2/Convert—As an input, this is one of the PFIs. As an output, this is the CONVERT* signal. A high-to-low edge on CONVERT* indicates that an A/D conversion is occurring.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-8 National Instruments Corporation Table 4-1 shows the I/O signal summary for the AT-MIO-16E-1, AT-MIO-16E-2 and AT-MIO-64E-3. PFI9/GPCTR0_GATE DGND Input Output PFI9/Counter 0 Gate—As an input, this is one of the PFIs.
Chapter 4 Signal Connections National Instruments Corporation 4-9 AT-MIO/AI E Series User Manual DIO<0..7> DIO — V cc +0.5 13 at (V cc -0.4) 24 at 0.4 1.1 50 k Ω pu 1 SCANCLK DO — — 3.5 at (V cc -0.4) 5 at 0.4 1.5 50 k Ω pu EXTSTROBE* DO — — 3.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-10 National Instruments Corporation Table 4-2 shows the I/O signal summary for the AT-MIO-16E-10 and AT-MIO-16DE-10.
Chapter 4 Signal Connections National Instruments Corporation 4-11 AT-MIO/AI E Series User Manual PFI3/GPCTR1_SOURCE DIO — V cc +0.5 3.5 at (V cc -0.4) 5 at 0.4 1.5 50 k Ω pu PFI4/GPCTR1_GATE DIO — V cc +0.5 3.5 at (V cc -0.4) 5 at 0.4 1.5 50 k Ω pu GPCTR1_OUT DO — — 3.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-12 National Instruments Corporation Table 4-3 shows the I/O signal summary for the AT-MIO-16XE-10 and AT-AI-16XE-10.
Chapter 4 Signal Connections National Instruments Corporation 4-13 AT-MIO/AI E Series User Manual PFI5/UPDATE* DIO — V cc +0.5 3.5 at (V cc -0.4) 5 at 0.4 1.5 50 k Ω pu PFI6/WFTRIG DIO — V cc +0.5 3.5 at (V cc -0.4) 5 at 0.4 1.5 50 k Ω pu PFI7/STARTSCAN DIO — V cc +0.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-14 National Instruments Corporation Table 4-4 shows the I/O signal summary for the AT-MIO-16XE-50. Table 4-4. I/O Signal Summary, AT-MIO-16XE-50 Signal Name Drive Impedance Input/ Output Protection (Volts) On/Off Source (mA at V) Sink (mA at V) Rise Time (ns) Bias ACH<0.
Chapter 4 Signal Connections National Instruments Corporation 4-15 AT-MIO/AI E Series User Manual PFI5/UPDATE* DIO — V cc +0.5 3.5 at (V cc -0.4) 5 at 0.4 1.5 50 k Ω pu PFI6/WFTRIG DIO — V cc +0.5 3.5 at (V cc -0.4) 5 at 0.4 1.5 50 k Ω pu PFI7/STARTSCAN DIO — V cc +0.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-16 National Instruments Corporation Analog Input Signal Connections ♦ AT-MIO-16E-1, ΑΤ -MIO-16E-2, AT-MIO-16E-10, AT-MIO-16DE-10, AT-MIO-16XE-10, AT-AI-16XE-10, AT-MIO-16XE-50 The analog input signals are ACH<0.
Chapter 4 Signal Connections National Instruments Corporation 4-17 AT-MIO/AI E Series User Manual use the PGIA in different ways. Figure 4-4 shows a diagram of your AT E Series board PGIA.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-18 National Instruments Corporation Types of Signal Sources When configuring the input channels and making signal connections, you must first determine whether the signal sources are floating or ground-referenced.
Chapter 4 Signal Connections National Instruments Corporation 4-19 AT-MIO/AI E Series User Manual Figure 4-5 summarizes the recommended input configuration for both types of signal sources.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-20 National Instruments Corporation Differential Connection Considerations (DIFF Input Configuration) A differential connection is one in which the AT E Series board analog input signal has its own reference signal or signal return path.
Chapter 4 Signal Connections National Instruments Corporation 4-21 AT-MIO/AI E Series User Manual Differential Connections for Ground-Referenced Signal Sources Figure 4-6 shows how to connect a ground-referenced signal source to an AT E Series board channel configured in DIFF input mode.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-22 National Instruments Corporation Differential Connections for Nonreferenced or Floating Signal Sources Figure 4-7 shows how to connect a floating signal source to an AT E Series board channel configured in DIFF input mode.
Chapter 4 Signal Connections National Instruments Corporation 4-23 AT-MIO/AI E 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 AT-MIO/AI E Series User Manual 4-24 National Instruments Corporation Single-Ended Connection Considerations A single-ended connection is one in which the AT E Series board analog input signal is referenced to a ground that can be shared with other input signals.
Chapter 4 Signal Connections National Instruments Corporation 4-25 AT-MIO/AI E Series User Manual Single-Ended Connections for Floating Signal Sources (RSE Configuration) Figure 4-8 shows how to connect a floating signal source to an AT E Series board channel configured for RSE mode.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-26 National Instruments Corporation Figure 4-9 shows how to connect a grounded signal source to an AT E Series board channel configured for NRSE mode.
Chapter 4 Signal Connections National Instruments Corporation 4-27 AT-MIO/AI E Series User Manual Analog Output Signal Connections The analog output signals are DAC0OUT, DAC1OUT, EXTREF, and AOGND. DAC0OUT and DAC1OUT are not available on the AT-AI-16XE-10.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-28 National Instruments Corporation Figure 4-10 shows how to make analog output connections and the external reference input connection to your AT E Series board. Figure 4-10. Analog Output Connections The external reference signal can be either a DC or an AC signal.
Chapter 4 Signal Connections National Instruments Corporation 4-29 AT-MIO/AI E Series User Manual Warning: Exceeding the maximum input voltage ratings, which are listed in Tables 4-1 through 4-4, can damage the AT E Series board and the PC. National Instruments is NOT liable for any damages resulting from such signal connections.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-30 National Instruments Corporation Power Connections Two pins on the I/0 connector supply +5 V from the PC power supply via a self-resetting fuse. The fuse will reset automatically within a few seconds after the overcurrent condition is removed.
Chapter 4 Signal Connections National Instruments Corporation 4-31 AT-MIO/AI E Series User Manual external TRIG1 source and an external CONVERT* source to two of the AT E Series board PFI pins.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-32 National Instruments Corporation detection requirements for each timing signal are listed within the section that discusses that individual signal. In edge-detection mode, the minimum pulse width required is 10 ns.
Chapter 4 Signal Connections National Instruments Corporation 4-33 AT-MIO/AI E Series User Manual Figure 4-14. 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 AT-MIO/AI E Series User Manual 4-34 National Instruments Corporation EXTSTROBE* signal. A 10 µ s and a 1.2 µ s clock are available for generating a sequence of eight pulses in the hardware-strobe mode. Figure 4-16 shows the timing for the hardware-strobe mode EXTSTROBE* signal.
Chapter 4 Signal Connections National Instruments Corporation 4-35 AT-MIO/AI E Series User Manual Figure 4-17. TRIG1 Input Signal Timing Figure 4-18. TRIG1 Output Signal Timing The board also uses the TRIG1 signal to initiate pretriggered data acquisition operations.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-36 National Instruments Corporation TRIG2 Signal Any PFI pin can externally input the TRIG2 signal, which is available as an output on the PFI1/TRIG2 pin. Refer to Figure 4-13 for the relationship of TRIG2 to the data acquisition sequence.
Chapter 4 Signal Connections National Instruments Corporation 4-37 AT-MIO/AI E Series User Manual Figure 4-20. TRIG2 Output Signal Timing STARTSCAN Signal Any PFI pin can externally input the STARTSCAN signal, which is available as an output on the PFI7/STARTSCAN pin.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-38 National Instruments Corporation Figures 4-21 and 4-22 show the input and output timing requirements for the STARTSCAN signal Figure 4-21.
Chapter 4 Signal Connections National Instruments Corporation 4-39 AT-MIO/AI E Series User Manual The CONVERT* pulses are masked off until the board generates the STARTSCAN signal. If you are using internally generated conversions, the first CONVERT* will appear when the onboard sample interval counter reaches zero.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-40 National Instruments Corporation Figures 4-23 and 4-24 show the input and output timing requirements for the CONVERT* signal. Figure 4-23. CONVERT* Input Signal Timing Figure 4-24. CONVERT* Output Signal Timing The ADC switches to hold mode within 60 ns of the selected edge.
Chapter 4 Signal Connections National Instruments Corporation 4-41 AT-MIO/AI E Series User Manual AIGATE Signal Any PFI pin can externally input the AIGATE signal, which is not available as an output on the I/O connector. The AIGATE signal can mask off scans in a data acquisition sequence.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-42 National Instruments Corporation Either the 20 MHz or 100 kHz internal timebase generates the SISOURCE signal unless you select some external source. Figure 4-25 shows the timing requirements for the SISOURCE signal.
Chapter 4 Signal Connections National Instruments Corporation 4-43 AT-MIO/AI E Series User Manual Figures 4-26 and 4-27 show the input and output timing requirements for the WFTRIG signal.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-44 National Instruments Corporation Figures 4-28 and 4-29 show the input and output timing requirements for the UPDATE* signal. Figure 4-28. UPDATE* Input Signal Timing Figure 4-29. UPDATE* Output Signal Timing The DACs are updated within 100 ns of the leading edge.
Chapter 4 Signal Connections National Instruments Corporation 4-45 AT-MIO/AI E Series User Manual UISOURCE Signal Any PFI pin can externally input the UISOURCE signal, which is not available as an output on the I/O connector. The UI counter uses the UISOURCE signal as a clock to time the generation of the UPDATE* signal.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-46 National Instruments Corporation General-Purpose Timing Signal Connections The general-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.
Chapter 4 Signal Connections National Instruments Corporation 4-47 AT-MIO/AI E Series User Manual GPCTR0_GATE Signal Any PFI pin can externally input the GPCTR0_GATE signal, which is available as an output on the PFI9/GPCTR0_GATE pin. As an input, the GPCTR0_GATE signal is configured in the edge-detection mode.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-48 National Instruments Corporation Figure 4-33. GPCTR0_OUT Signal Timing GPCTR0_UP_DOWN Signal This signal can be externally input on the DIO6 pin and is not available as an output on the I/O connector.
Chapter 4 Signal Connections National Instruments Corporation 4-49 AT-MIO/AI E Series User Manual Figure 4-34 shows the timing requirements for the GPCTR1_SOURCE signal. Figure 4-34. GPCTR1_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 AT-MIO/AI E Series User Manual 4-50 National Instruments Corporation Figure 4-35 shows the timing requirements for the GPCTR1_GATE signal. Figure 4-35. GPCTR1_GATE Signal Timing in Edge-Detection Mode GPCTR1_OUT Signal This signal is available only as an output on the GPCTR1_OUT pin.
Chapter 4 Signal Connections National Instruments Corporation 4-51 AT-MIO/AI E Series User Manual 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. General-purpose counter 1 counts down when this pin is at a logic low and counts up at a logic high.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-52 National Instruments Corporation The GATE and OUT signal transitions shown in Figure 4-37 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 4-53 AT-MIO/AI E Series User Manual Timing Specifications for Digital I/O Ports A, B, and C ♦ AT-MIO-16DE-10 only In addition to its function as a digital I/O port, digital port C, PC<0.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-54 National Instruments Corporation This section lists the timing specifications for handshaking with the AT-MIO-16DE-10 port C circuitry. The handshaking lines STB* and IBF synchronize input transfers.
Chapter 4 Signal Connections National Instruments Corporation 4-55 AT-MIO/AI E Series User Manual Mode 1 Input Timing The following are the timing specifications for an input transfer in Mode 1: Figure 4-38.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-56 National Instruments Corporation Mode 1 Output Timing The following are the timing specifications for an output transfer in Mode 1: Figure 4-39.
Chapter 4 Signal Connections National Instruments Corporation 4-57 AT-MIO/AI E Series User Manual Mode 2 Bidirectional Timing The following are the timing specifications for bidirectional transfers in Mode 2: Figure 4-40.
Chapter 4 Signal Connections AT-MIO/AI E Series User Manual 4-58 National Instruments Corporation Field Wiring Considerations Environmental noise can seriously affect the accuracy of measurements made with your AT E Series board if you do not take proper care when running signal wires between signal sources and the board.
National Instruments Corporation 5-1 AT-MIO/AI E Series User Manual Calibration Chapter 5 This chapter discusses the calibration procedures for your AT E Series board. If you are using the NI-DAQ device driver, that software includes calibration functions for performing all of the steps in the calibration process.
Chapter 5 Calibration AT-MIO/AI E Series User Manual 5-2 National Instruments Corporation This method of calibration is not very accurate because it does not take into account the fact that the board measurement and output voltage errors can vary with time and temperature.
Chapter 5 Calibration National Instruments Corporation 5-3 AT-MIO/AI E Series User Manual To externally calibrate your board, be sure to use a very accurate external reference. The reference should be several times more accurate than the board itself.
National Instruments Corporation A-1 AT-MIO/AI E Series User Manual Specifications Appendix A This appendix lists the specifications of each board in the AT E Series.
Appendix A Specifications for A T -MIO-16E-1, A T -MIO-16E-2 and A T -MIO-64E-3 AT-MIO/AI E Series User Manual A-2 National Instruments Corporation Input coupling .................................... DC Max working voltage (signal + common mode).
Appendix A Specifications for A T -MIO-16E-1, A T -MIO-16E-2 and A T -MIO-64E-3 National Instruments Corporation A-3 AT-MIO/AI E Series User Manual Transfer Characteristics Relative accuracy ............................. ± 0.5 LSB typ dithered, ± 1.
Appendix A Specifications for A T -MIO-16E-1, A T -MIO-16E-2 and A T -MIO-64E-3 AT-MIO/AI E Series User Manual A-4 National Instruments Corporation Dynamic Characteristics Bandwidth ......................... Small signal (-3dB) Large signal (1% THD) AT-MIO-16E-1 1.
Appendix A Specifications for A T -MIO-16E-1, A T -MIO-16E-2 and A T -MIO-64E-3 National Instruments Corporation A-5 AT-MIO/AI E Series User Manual Crosstalk ........................................... -80 dB, DC to 100 kHz Stability Recommended warm-up time .
Appendix A Specifications for A T -MIO-16E-1, A T -MIO-16E-2 and A T -MIO-64E-3 AT-MIO/AI E Series User Manual A-6 National Instruments Corporation Analog Output Output Characteristics Number of channels ........................... 2 voltage Resolution .
Appendix A Specifications for A T -MIO-16E-1, A T -MIO-16E-2 and A T -MIO-64E-3 National Instruments Corporation A-7 AT-MIO/AI E Series User Manual Gain error (relative to external reference)........... +0% to +0.5% of output max, not adjustable Voltage Output Ranges .
Appendix A Specifications for A T -MIO-16E-1, A T -MIO-16E-2 and A T -MIO-64E-3 AT-MIO/AI E Series User Manual A-8 National Instruments Corporation Onboard calibration reference Level .......................................... 5.000 V ( ± 2.5 mV) (actual value stored in EEPROM) Temperature coefficient .
Appendix A Specifications for A T -MIO-16E-1, A T -MIO-16E-2 and A T -MIO-64E-3 National Instruments Corporation A-9 AT-MIO/AI E Series User Manual Base clocks available Counter/timers ............................ 20 MHz, 100 kHz Frequency scalers.
Appendix A Specifications for A T -MIO-16E-1, A T -MIO-16E-2 and A T -MIO-64E-3 AT-MIO/AI E Series User Manual A-10 National Instruments Corporation Digital Trigger Compatibility ..................................... TTL Response ................
National Instruments Corporation A-11 AT-MIO/AI E Series User Manual AT-MIO-16E-10 and AT-MIO-16DE-10 Analog Input Input Characteristics Number of channels ........................... 16 single-ended or 8 differential, software selectable Type of ADC .
Appendix A Specifications for A T -MIO-16E-10 and A T -MIO-16DE-10 AT-MIO/AI E Series User Manual A-12 National Instruments Corporation Data transfers ..................................... DMA, interrupts, programmed I/O DMA modes ...............
Appendix A Specifications for A T -MIO-16E-10 and A T -MIO-16DE-10 National Instruments Corporation A-13 AT-MIO/AI E Series User Manual Crosstalk ........................................... -80 dB, DC to 100 kHz Stability Recommended warm-up time .
Appendix A Specifications for A T -MIO-16E-10 and A T -MIO-16DE-10 AT-MIO/AI E Series User Manual A-14 National Instruments Corporation Data transfers ..................................... DMA, interrupts, programmed I/O DMA modes ...............
Appendix A Specifications for A T -MIO-16E-10 and A T -MIO-16DE-10 National Instruments Corporation A-15 AT-MIO/AI E Series User Manual External reference input Range .......................................... ± 11 V Overvoltage protection .....
Appendix A Specifications for A T -MIO-16E-10 and A T -MIO-16DE-10 AT-MIO/AI E Series User Manual A-16 National Instruments Corporation Handshaking (AT-MIO-16DE-10 only) ................ 3-wire Digital logic levels ............ Level Min Max Input low voltage 0 V 0.
Appendix A Specifications for A T -MIO-16E-10 and A T -MIO-16DE-10 National Instruments Corporation A-17 AT-MIO/AI E Series User Manual Power-on state ................................... Input (High-Z) Data transfers AT-MIO-16E-10 ...............
Appendix A Specifications for A T -MIO-16E-10 and A T -MIO-16DE-10 AT-MIO/AI E Series User Manual A-18 National Instruments Corporation Power Requirement +5 VDC ( ± 5%)................................... 0.7 A Power available at I/O connector ..
National Instruments Corporation A-19 AT-MIO/AI E Series User Manual AT-MIO-16XE-10 and AT-AI-16XE-10 Analog Input Input Characteristics Number of channels ...........................16 single-ended or 8 differential (software-selectable) Type of ADC .
Appendix A Specifications for A T -MIO-16XE-10 and A T -AI-16XE-10 AT-MIO/AI E Series User Manual A-20 National Instruments Corporation Configuration memory size ................ 512 words Transfer Characteristics Relative accuracy ..............
Appendix A Specifications for A T -MIO-16XE-10 and A T -AI-16XE-10 National Instruments Corporation A-21 AT-MIO/AI E Series User Manual Dynamic Characteristics Bandwidth All gains ..................................... 255 kHz Settling time for full-scale step, all gains and ranges To ± 0.
Appendix A Specifications for A T -MIO-16XE-10 and A T -AI-16XE-10 AT-MIO/AI E Series User Manual A-22 National Instruments Corporation Analog Output (AT-MIO-16XE-10 only) Output Characteristics Number of channels ........................... 2 voltage Resolution .
Appendix A Specifications for A T -MIO-16XE-10 and A T -AI-16XE-10 National Instruments Corporation A-23 AT-MIO/AI E Series User Manual Dynamic Characteristics Settling time for full-scale step.......... 10 µ s to ± 1 LSB accuracy Slew rate ...
Appendix A Specifications for A T -MIO-16XE-10 and A T -AI-16XE-10 AT-MIO/AI E Series User Manual A-24 National Instruments Corporation Timing I/O Number of channels ........................... 2 up/down counter/timers, 1 frequency scaler Resolution Counter/timers .
Appendix A Specifications for A T -MIO-16XE-10 and A T -AI-16XE-10 National Instruments Corporation A-25 AT-MIO/AI E Series User Manual External input (PFI0/TRIG1) Impedance................................... 10 k Ω Coupling ...................
National Instruments Corporation A-26 AT-MIO/AI E Series User Manual AT-MIO-16XE-50 Analog Input Input Characteristics Number of channels ...........................16 single-ended or 8 differential (software-selectable) Type of ADC ..............
Appendix A Specifications for A T -MIO-16XE-50 National Instruments Corporation A-27 AT-MIO/AI E Series User Manual Transfer Characteristics Relative accuracy .............................. ± 0.5 LSB typ, ± 1 LSB max DNL .......................
Appendix A Specifications for A T -MIO-16XE-50 AT-MIO/AI E Series User Manual A-28 National Instruments Corporation Settling time for full-scale step .......... 50 µ s max to ± 1 LSB, all gains and ranges System noise (including quantization noise) Gain = 1, 2, 10 .
Appendix A Specifications for A T -MIO-16XE-50 National Instruments Corporation A-29 AT-MIO/AI E Series User Manual Offset error After calibration .......................... ± 0.5 mV max Before calibration ....................... ± 85 mV max Gain error (relative to calibration reference) After calibration .
Appendix A Specifications for A T -MIO-16XE-50 AT-MIO/AI E Series User Manual A-30 National Instruments Corporation Digital I/O Number of channels ........................... 8 input/output Compatibility ..................................... TTL/CMOS Power-on state .
Appendix A Specifications for A T -MIO-16XE-50 National Instruments Corporation A-31 AT-MIO/AI E Series User Manual Min gate pulse duration .................... 10 ns, edge-detect mode Data transfers .................................... DMA, interrupts, programmed I/O DMA modes .
National Instruments Corporation B-1 AT-MIO/AI E Series User Manual Optional Cable Connector Descriptions Appendix B This appendix describes the connectors on the optional cables for the AT E Series boards. Figure B-1 shows the pin assignments for the 68-pin MIO connector.
Appendix B Optional Cable Connector Descriptions AT-MIO/AI E Series User Manual B-2 National Instruments Corporation Figure B-1. 68-Pin MIO Connector Pin Assignments 2 1 1 1 2 Not available on AT-.
Appendix B Optional Cable Connector Descriptions National Instruments Corporation B-3 AT-MIO/AI E Series User Manual Figure B-2 shows the pin assignments for the 68-pin DIO connector. This is the other 68-pin connector available when you use the SH1006868 cable assembly with the AT-MIO-16DE-10.
Appendix B Optional Cable Connector Descriptions AT-MIO/AI E Series User Manual B-4 National Instruments Corporation Figure B-3 shows the pin assignments for the 68-pin extended analog input connector. This is the other 68-pin connector available when you use the SH1006868 cable assembly with the AT-MIO-64E-3.
Appendix B Optional Cable Connector Descriptions National Instruments Corporation B-5 AT-MIO/AI E Series User Manual Figure B-4 shows the pin assignments for the 50-pin MIO connector.
Appendix B Optional Cable Connector Descriptions AT-MIO/AI E Series User Manual B-6 National Instruments Corporation Figure B-5 shows the pin assignments for the 50-pin DIO connector. This is the other 50-pin connector available when you use the R1005050 cable assembly with the AT-MIO-16DE-10.
Appendix B Optional Cable Connector Descriptions National Instruments Corporation B-7 AT-MIO/AI E Series User Manual Figure B-6 shows the pin assignments for the 50-pin extended analog input connector. This is the other 50-pin connector available when you use the R1005050 cable assembly with the AT-MIO-64E-3 .
National Instruments Corporation C-1 AT-MIO/AI E 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 AT E Series board. General Information 1.
Appendix C Common Questions AT-MIO/AI E Series User Manual C-2 National Instruments Corporation that some AT E Series boards have settling times that vary with gain and accuracy.
Appendix C Common Questions National Instruments Corporation C-3 AT-MIO/AI E Series User Manual 10. What special calls must be made in DOS or LabWindows to use AT E Series boards? To link in the AT E Series function calls, you must call USE_E_Series or one of its subsets.
Appendix C Common Questions AT-MIO/AI E Series User Manual C-4 National Instruments Corporation 15. Can I sample across a number of channels on an AT E Series board while each channel is being sampled at a different rate? NI-DAQ for PC compatibles version 4.
Appendix C Common Questions National Instruments Corporation C-5 AT-MIO/AI E Series User Manual b. Set up data acquisition timing so that the timing signal for A/D conversion comes from PFI5, as follows: • If you are using NI-DAQ, call Select_Signal(deviceNumber, ND_IN_CONVERT, ND_PFI_5, ND_HIGH_TO_LOW) .
Appendix C Common Questions AT-MIO/AI E Series User Manual C-6 National Instruments Corporation 20. What is the difference in timebases between the Am9513 counter/timer and the DAQ-STC? The DAQ-STC-based MIO boards have a 20 MHz timebase. The Am9513-based MIO boards have a 1 MHz or 5 MHz timebase.
Appendix C Common Questions National Instruments Corporation C-7 AT-MIO/AI E Series User Manual errors. NI-DAQ takes a snapshot of transfers and counts how many points have been transferred.
Appendix C Common Questions AT-MIO/AI E Series User Manual C-8 National Instruments Corporation a 50 k Ω pull-up resistor. This pull-up resistor will set the DIO(0) pin to a logic high when the output is in a high impedance state.
National Instruments Corporation D-1 AT-MIO/AI E 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.
AT E 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 AT-MIO/AI E Series User Manual Symbols % percent ± plus or minus ˚ degrees / per + positive of, or plus – negative of, or minus Ω ohms square root of +5V.
Glossary AT-MIO/AI E Series User Manual G-2 National Instruments Corporation A A amperes AC alternating current ACH analog input channel signal A/D analog-to-digital ADC A/D converter AIGATE analo.
Glossary National Instruments Corporation G-3 AT-MIO/AI E Series User Manual D D/A digital-to-analog DAC D/A converter DAC0OUT analog channel 0 output signal DAC1OUT analog channel 1 output signal.
Glossary AT-MIO/AI E Series User Manual G-4 National Instruments Corporation G GPCTR0_GATE general purpose counter 0 gate signal GPCTR1_GATE general purpose counter 1 gate signal GPCTR0_OUT genera.
Glossary National Instruments Corporation G-5 AT-MIO/AI E Series User Manual MSB most significant bit N NRSE nonreferenced single-ended mode O OUT output P PC personal computer PFI Programmable Fu.
Glossary AT-MIO/AI E Series User Manual G-6 National Instruments Corporation STARTSCAN start scan signal T TC terminal count THD total harmonic distortion TRIG trigger signal TTL transistor-transi.
National Instruments Corporation I -1 AT-MIO/AI E Series User Manual Index Symbols +5 V signal description, 4-6 power connections, 4-30 A ACH<0.
Index AT-MIO/AI E Series User Manual I -2 National Instruments Corporation analog input specifications AT-MIO-16E-1, AT-MIO-16E-2 and AT-MIO-64E-3, A-1 to A-5 amplifier characteristics, A-3 dynami.
Index National Instruments Corporation I -3 AT-MIO/AI E Series User Manual software programming choices LabVIEW and LabWindows/CVI, 1-3 NI-DAQ driver software, 1-3 to 1-5 register-level programmin.
Index AT-MIO/AI E Series User Manual I -4 National Instruments Corporation DAC1OUT signal analog output connections, 4-27 to 4-28 AT-MIO-16E-1, AT-MIO-16E-2 and AT-MIO-64E-3 (table), 4-8 AT-MIO-16.
Index National Instruments Corporation I -5 AT-MIO/AI E Series User Manual dither enabling, 3-11 to 3-12 DMA channels configuring, 2-3 to 2-4 PC AT 16-bit DMA channel assignment map (table), 2-7 d.
Index AT-MIO/AI E Series User Manual I -6 National Instruments Corporation frequently asked questions. See questions about AT E series boards. FTP support, D-1 fuse, 4-6 G general-purpose timing s.
Index National Instruments Corporation I -7 AT-MIO/AI E Series User Manual I I/O connectors, 4-1 to 4-15 exceeding maximum ratings (warning), 4-1, 4-16, 4-29 I/O signal summary (table) AT-MIO-16E-.
Index AT-MIO/AI E Series User Manual I -8 National Instruments Corporation N NI-DAQ driver software, 1-3 to 1-5 noise, avoiding, 4-58 NRSE (nonreferenced single-ended input) description (table), 3.
Index National Instruments Corporation I -9 AT-MIO/AI E Series User Manual AT-MIO-16XE-50 (table), 4-15 description (table), 4-7 PFI6/WFTRIG signal AT-MIO-16E-1, AT-MIO-16E-2 and AT-MIO-64E-3 (tab.
Index AT-MIO/AI E Series User Manual I -10 National Instruments Corporation Q questions about AT E series boards, C-1 to C-8 analog input and analog output, C-3 to C-5 general information, C-1 to .
Index National Instruments Corporation I -11 AT-MIO/AI E Series User Manual CONVERT* signal, 4-39 to 4-40 EXTSTROBE* signal, 4-33 to 4-34 SCANCLK signal, 4-33 SISOURCE signal, 4-41 to 4-42 STARTSC.
Index AT-MIO/AI E Series User Manual I -12 National Instruments Corporation output characteristics, A-13 to A-14 stability, A-15 transfer characteristics, A-14 voltage output, A-14 to A-15 bus int.
Index National Instruments Corporation I -13 AT-MIO/AI E Series User Manual T technical support, D-1 to D-2 theory of operation. See hardware overview.
Index AT-MIO/AI E Series User Manual I -14 National Instruments Corporation AT-MIO-16E-10 and AT-MIO-16DE-10 digital trigger, A-17 RTSI, A-17 AT-MIO-16XE-10 and AT-AI-16XE-10 analog trigger, A-24 to A-25 digital trigger, A-25 RTSI, A-25 AT-MIO-16XE-50 digital trigger, A-31 RTSI, A-31 troubleshooting.
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