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Reconfigurable I/O
NI 783xR User Manual
Reconfigurable I/O Devices for
PCI/PXI/CompactPCI Bus Computers
NI 783xR User Manual
May 2005
370489C-01
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Support Worldwide Technical Support and Product Information ni.com National Instruments Corporate Headquarters 11500 North Mopac Expressway Austin, Texas 78759-3504 USA Tel: 512 683 0100 Worldwide Offices Australia 1800 300 800, Austria 43 0 662 45 79 90 0, Belgium 32 0 2 757 00 20, Brazil 55 11 3262 3599, Canada 800 433 3488, China 86 21 6555 7838, Czech Republic 420 224 235 774, Denmark 45 45 76 26 00, Finland 385 0 9 725 725 11, France 33 0 1 48 14 24 24, Germany 49 0 89 741 31 30, India 91
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Important Information Warranty The NI 7830R/7831R/7833R is 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. This warranty includes parts and labor. The media on which you receive National Instruments software are warranted not to fail to execute programming inst
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Compliance Compliance with FCC/Canada Radio Frequency Interference Regulations Determining FCC Class The Federal Communications Commission (FCC) has rules to protect wireless communications from interference. The FCC places digital electronics into two classes. These classes are known as Class A (for use in industrial-commercial locations only) or Class B (for use in residential or commercial locations). All National Instruments (NI) products are FCC Class A products. Depending on where it
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Contents About This Manual Conventions ...................................................................................................................vii Reconfigurable I/O Documentation...............................................................................viii Related Documentation..................................................................................................ix Chapter 1 Introduction About the NI 783xR...............................................................
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Contents Input Modes................................................................................................................... 2-6 Differential Connection Considerations (DIFF Input Mode) ......................... 2-8 Differential Connections for Ground-Referenced Signal Sources ... 2-8 Differential Connections for Nonreferenced or Floating Signal Sources ................................................................. 2-9 Single-Ended Connection Considerations .......................
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About This Manual This manual describes the electrical and mechanical aspects of the National Instruments 783xR devices and contains information about programming and using the devices. Conventions The following conventions appear in this manual: <> Angle brackets that contain numbers separated by an ellipsis represent a range of values associated with a bit or signal name—for example, DIO<3..0>. » The » symbol leads you through nested menu items and dialog box options to a final action. Th
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About This Manual Reconfigurable I/O Documentation The NI 783xR User Manual is one piece of the documentation set for your reconfigurable I/O system and application. Depending on the hardware and software you use for your application, you could have any of several types of documentation. The documentation includes the following documents: Getting Started with the NI 783xR—This document lists what you need to get started, describes how to unpack and install the hardware and software, and c
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About This Manual Related Documentation The following documents contain information you might find helpful: NI Developer Zone tutorial, Field Wiring and Noise Considerations for Analog Signals, at ni.com/zone PICMG CompactPCI 2.0 R3.0 • PXI Hardware Specification Revision 2.1 PXI Software Specification Revision 2.1 © National Instruments Corporation ix NI 783xR User Manual
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1 Introduction This chapter describes the NI 783xR, the concept of the Reconfigurable I/O (RIO) device, optional software and equipment for using the NI 783xR, and safety information about the NI 783xR. About the NI 783xR The NI 783xR devices are R Series RIO devices with 16-bit analog input (AI) channels, 16-bit analog output (AO) channels, and digital I/O (DIO) lines. The NI PXI-7830R and NI PCI-7830R have four independent AI channels, four independent AO channels, and 56 DIO lines. T
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Chapter 1 Introduction The NI 783xR uses the Real-Time System Integration (RTSI) bus to easily synchronize several measurement functions to a common trigger or timing event. The NI PCI-783xR accesses the RTSI bus through a RTSI cable connected between devices. The NI PXI-783xR accesses the RTSI bus through the PXI trigger lines implemented on the PXI backplane. Refer to Appendix A, Specifications, for detailed NI 783xR specifications. Using PXI with CompactPCI Using PXI-compatible products
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Chapter 1 Introduction Table 1-1. Pins Used by the NI PXI-783xR NI PXI-783xR Signal PXI Pin Name PXI J2 Pin Number PXI Trigger<0..7> PXI Trigger<0..7> A16, A17, A18, B16, B18, C18, E16, E18 PXI Clock 10 MHz PXI Clock 10 MHz E17 PXI Star Trigger PXI Star Trigger D17 LBLSTAR<0..12> LBL<0..12> A1, A19, C1, C19, C20, D1, D2, D15, D19, E1, E2, E19, E20 LBR<0..12> LBR<0..12> A2, A3, A20, A21, B2, B20, C3, C21, D3, D21, E3, E15, E21 Overview of Reconfigurable I/O This section explains reconfigurabl
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Chapter 1 Introduction User-Defined I/O Resources You can create your own custom measurements using the fixed I/O resources. For example, one application might require an event counter that increments when a rising edge appears on any of three digital input lines. Another application might require a digital line to be asserted after an analog input exceeds a programmable threshold. Device-Embedded Logic and Processing You can implement LabVIEW logic and processing in the FPGA of the R Serie
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Chapter 1 Introduction The FPGA logic provides timing, triggering, processing, and custom I/O measurements. Each fixed I/O resource used by the application uses a small portion of the FPGA logic that controls the fixed I/O resource. The bus interface also uses a small portion of the FPGA logic to provide software access to the device. The remaining FPGA logic is available for higher-level functions such as timing, triggering, and counting. The functions use varied amounts of logic. You can
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Chapter 1 Introduction FPGA Interface User Guide, for information about the FPGA Interface functions. You can use Interactive Front Panel Communication to communicate directly with the VI running on the FPGA. You can use Programmatic FPGA Interface Communication to programmatically control and communicate with FPGA VIs from host VIs. Use the FPGA Interface functions when you target LabVIEW for Windows or an RT target to create host VIs that wait for interrupts and control the FPGA by readi
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Chapter 1 Introduction Cables and Optional Equipment National Instruments offers a variety of products you can use with R Series devices, including cables, connector blocks, and other accessories, as shown in Table 1-2. Table 1-2. Cables and Accessories NI 783xR Cable Cable Description Connector Accessories SH68-C68-S Shielded 68-pin VHDCI MIO or DIO Connects to the following male connector to female standard 68-pin screw 0.050 series D-type terminal blocks: connector. The cable is SCB-6
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Chapter 1 Introduction Table 1-2. Cables and Accessories (Continued) NI 783xR Cable Cable Description Connector Accessories NSC68-262650 Non-shielded cable connects MIO only 26-pin headers can connect from 68-pin VHDCI male to the following 5B connector to two 26-pin backplanes for analog signal female headers plus one conditioning: 50-pin female header. The 5B08 (8-channel) pinout of these headers 5B01 (16-channel) allows for direct connection to 5B backplanes for analog 50-pin head
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Chapter 1 Introduction signals that you need to the connector of your choice. Refer to Appendix B, Connecting I/O Signals, for the NI 783xR connector pinouts. Safety Information The following section contains important safety information that you must follow when installing and using the NI 783xR. Do not operate the NI 783xR in a manner not specified in this document. Misuse of the NI 783xR can result in a hazard. You can compromise the safety protection built into the NI 783xR if the NI 783
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Chapter 1 Introduction to the system. Remove power from signal lines before connecting them to or disconnecting them from the NI 783xR. 1 Operate the NI 783xR at or below the measurement category listed in the section Maximum working voltage, in Appendix A, Specifications. 2 Measurement circuits are subjected to working voltages and transient stresses (overvoltage) from the circuit to which they are connected during measurement or test. Measurement categories establish standard impulse wit
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2 Hardware Overview of the NI 783xR This chapter presents an overview of the hardware functions and I/O connectors on the NI 783xR. Figure 2-1 shows a block diagram for the NI 7830R. Figure 2-2 shows a block diagram for the NI 7831R/7833R. Calibration DACs Configuration Flash Input Mux Control Memory AI+ + 16-Bit Instrumentation ADC Amplifier AI– – x4 Channels Input Mode Mux AISENSE User- AIGND Voltage Temperature Control Reference Sensor Bus Configurable Data/Address/ Control Interface FPGA
