Manual de instrucciones de National Instruments NI PXI-7831R

Manual de instrucciones del aparato National Instruments NI PXI-7831R

Aparato: National Instruments NI PXI-7831R
Categoría: Tarjeta de red
Fabricante: National Instruments
Tamaño: 0.71 MB
Fecha de añadido: 6/19/2014
Número de páginas: 73
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Resumen del contenido incluido en la página 1

Reconfigurable I/O
NI PXI-7831R User Manual
Reconfigurable I/O Devices for PXI/CompactPCI Bus Computers
NI PXI-7831R User Manual
April 2003 Edition
Part Number 370489A-01

Resumen del contenido incluido en la página 2

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 61 2 9672 8846, Austria 43 0 662 45 79 90 0, Belgium 32 0 2 757 00 20, Brazil 55 11 3262 3599, Canada (Calgary) 403 274 9391, Canada (Montreal) 514 288 5722, Canada (Ottawa) 613 233 5949, Canada (Québec) 514 694 8521, Canada (Toronto) 905 785 0085, Canada (Vancouver) 514 685 7530,

Resumen del contenido incluido en la página 3

Important Information Warranty The NI PXI-7831R 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 instructions

Resumen del contenido incluido en la página 4

Compliance FCC/Canada Radio Frequency Interference Compliance 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 is operated, this

Resumen del contenido incluido en la página 5

Contents About This Manual Conventions ...................................................................................................................vii Reconfigurable I/O Documentation...............................................................................viii Related Documentation..................................................................................................viii Chapter 1 Introduction About the Reconfigurable I/O Devices...........................................

Resumen del contenido incluido en la página 6

Contents Differential Connections for Ground-Referenced Signal Sources ... 2-8 Differential Connections for Nonreferenced or Floating Signal Sources ................................................................. 2-9 Single-Ended Connection Considerations ...................................................... 2-11 Single-Ended Connections for Floating Signal Sources (RSE Input Mode)................................................. 2-12 Single-Ended Connections for Grounded Signal Sources (NRSE

Resumen del contenido incluido en la página 7

About This Manual This manual describes the electrical and mechanical aspects of the National Instruments PXI-7831R device and contains information concerning its operation and programming. The NI PXI-7831R device is a Reconfigurable I/O (RIO) device. The NI PXI-7831R contains eight independent, 16-bit analog input (AI) channels, eight independent, 16-bit analog output (AO) channels, and 96 digital I/O (DIO) lines. Conventions The following conventions appear in this manual: <> Angle bracke

Resumen del contenido incluido en la página 8

About This Manual programs, subprograms, subroutines, device names, functions, operations, variables, filenames and extensions, and code excerpts. Reconfigurable I/O Documentation The NI PXI-7831R User Manual is one piece of the documentation set for your RIO system and application. Depending on the hardware and software you use for your application, you could have any of several types of documentation. Use the documentation you have as follows:  Where to Start with the NI PXI-7831R—This do

Resumen del contenido incluido en la página 9

1 Introduction This chapter describes the NI PXI-7831R, describes the concept of the Reconfigurable I/O (RIO) device, lists what you need to get started, describes the optional software and optional equipment, explains how to unpack the hardware, and contains safety information about the NI PXI-7831R. About the Reconfigurable I/O Devices Thank you for purchasing the NI PXI-7831R. This RIO device has 96 digital I/O (DIO) lines, 8 independent, 16-bit analog output (AO) channels, and 8 indepe

Resumen del contenido incluido en la página 10

Chapter 1 Introduction The PXI chassis has the Real-Time System Integration (RTSI) bus to easily synchronize several measurement functions to a common trigger or timing event. The RTSI bus is implemented on the PXI trigger bus on the PXI backplane. The RTSI bus can route timing and trigger signals between as many as seven PXI devices in your system. Refer to Appendix A, Specifications, for detailed specifications of the RIO device. Using PXI with CompactPCI Using PXI compatible products wit

Resumen del contenido incluido en la página 11

Chapter 1 Introduction Table 1-1. Pins Used by the NI PXI-7831R NI PXI-7831R Signal PXI Pin Name PXI J2 Pin Number PXI Trigger<0..7> PXI Trigger<0..7> A16, A17, A18, B15, 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 What You Need to Get Started This section contains two lists that

Resumen del contenido incluido en la página 12

Chapter 1 Introduction ❑ The following documents are included on the NI Device Drivers CD and are also available at ni.com/manuals (optional): – LabVIEW FPGA Module Release Notes – LabVIEW FPGA Module User Manual – Where to Start with the NI PXI-7831R ❑ The LabVIEW Help, which is available by selecting Help»VI, Function, & How-To Help from LabVIEW. Getting Started with the RT Module To set up and use the NI PXI-7831R with the FPGA Module and the RT Module, you need the following items: ❑ NI P

Resumen del contenido incluido en la página 13

Chapter 1 Introduction ❑ The following documents are included on the NI Device Drivers CD and are also available at ni.com/manuals (optional): – LabVIEW FPGA Module Release Notes – LabVIEW FPGA Module User Manual – LabVIEW Real-Time Module User Manual – Where to Start with the NI PXI-7831R ❑ The LabVIEW Help, which is available by selecting Help»VI, Function, & How-To Help from LabVIEW. Overview of Reconfigurable I/O This section introduces the concept of RIO and describes how to use the reco

Resumen del contenido incluido en la página 14

Chapter 1 Introduction User-Defined I/O Resources With the RIO device, you can define both the combination of I/O resources and the I/O resources themselves. You can also create new building blocks on top of 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 once an analog input exceeds a programmable threshold. You can

Resumen del contenido incluido en la página 15

Chapter 1 Introduction the connectivity between the bus interface and the fixed I/O, including any timing, triggering, processing, and custom I/O required by the application. Timing, triggering, processing, and custom I/O is provided by consuming logic in the FPGA. Each fixed I/O resource used by the application consumes a small portion of the FPGA logic, which is used to perform basic control of the fixed I/O resource. The bus interface also consumes a small portion of the FPGA logic to pr

Resumen del contenido incluido en la página 16

Chapter 1 Introduction Counter DIO<0..7> Bus Interface PID AO0 Figure 1-3. FPGA Logic Use in an Application with Higher-Level Functions The FPGA is volatile and does not retain the VI when it is powered off. Therefore, the VI must be reloaded every time power is turned on. The VI comes from onboard flash memory or from the software over the bus interface. One advantage to using flash memory is that the VI can start executing almost immediately after power up, instead of waiting for the com

Resumen del contenido incluido en la página 17

Chapter 1 Introduction FPGA Module The FPGA Module enables you to use LabVIEW to create VIs that run on the RIO device, which contains a reconfigurable FPGA. The FPGA Module includes a new function palette, which contains functions that run on the FPGA on the RIO device. These functions can control the I/O, timing, and logic of the RIO device and can generate interrupts for synchronization. The FPGA Module synthesizes a VI into a form that can be downloaded to the FPGA on the RIO device. T

Resumen del contenido incluido en la página 18

Chapter 1 Introduction Table 1-2. Cables and Accessories Cable Cable Description Accessories SH68-C68-S Shielded 68-pin VHDCI male Connects to the following standard connector to female 0.050 series 68-pin screw terminal blocks: D-type connector. The cable is  SCB-68 constructed with 34 twisted wire  CB-68LP pairs plus an overall shield.  CB-68LPR TBX-68 NSC68-262650 Non-shielded cable connects from 26-pin headers can connect to the 68-pin VHDCI male connector to following 5B backplanes

Resumen del contenido incluido en la página 19

Chapter 1 Introduction SHC68-NT-S (NI part #189041-02) connects to the NI PXI-7831R VHDCI connectors on one end of the cable. The other end of the cable is not terminated. This cable ships with a wire list identifying which wire corresponds to which NI PXI-7831R pin. Using this cable, you can quickly connect the NI PXI-7831R signals that you need to the connector of your choice without having to connect these signals to the VHDCI connector end of the cable. Refer to Appendix B, Connecting

Resumen del contenido incluido en la página 20

Chapter 1 Introduction Do not substitute parts or modify the NI PXI-7831R except as described in this document. Use the NI PXI-7831R only with the chassis, modules, accessories, and cables specified in the installation instructions. You must have all covers and filler panels installed during operation of the NI PXI-7831R. Do not operate the NI PXI-7831R in an explosive atmosphere or where there may be flammable gases or fumes. If you must operate the NI PXI-7831R in such an environment, it


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