National Instruments NI 781xR - Manuals

Contents NI 781x R User Manual vi ni.com Appendix BConnecting I/O Signals Appendix CUsing the SCB-68 Shielded Connector Block Appendix DTechnical Support and Professional Services Glossary

© National Instruments Corporation vii NI 781x R User Manual About This Manual This manual describes the electrical and mechanical aspects of the National Instruments 781 x R devices, and contains information about programming and using the devices. Conventions The following conventions appear in th...

About This Manual NI 781x R User Manual viii ni.com monospace Text in this font denotes text or characters that you should enter from the keyboard, sections of code, programming examples, and syntax examples. This font is also used for the proper names of disk drives, paths, directories, programs, s...

About This Manual © National Instruments Corporation ix NI 781x R User Manual Related Documentation The following documents contain information you may find helpful: • PICMG CompactPCI 2.0 R3.0 • PXI Hardware Specification Revision 2.1 • PXI Software Specification Revision 2.1 • PCI Specification Re...

© National Instruments Corporation 1-1 NI 781x R User Manual 1 Introduction This chapter describes the NI 781 x R, the concept of the Reconfigurable I/O (RIO) device, optional software and equipment for using the NI 781 x R, and safety information about the NI 781 x R. About the Reconfigurable I/O D...

Chapter 1 Introduction NI 781x R User Manual 1-2 ni.com You can add additional I/O channels and signal conditioning using the CompactRIO R Series Expansion Chassis and CompactRIO I/O modules. Refer to Appendix A, Specifications , for detailed NI 781 x R specifications. Using PXI with CompactPCI Usin...

Chapter 1 Introduction © National Instruments Corporation 1-3 NI 781x R User Manual Overview of Reconfigurable I/O This section explains reconfigurable I/O and describes how to use the LabVIEW FPGA Module to build high-level functions in hardware. Refer to Chapter 2, Hardware Overview of the NI 781x...

Chapter 1 Introduction NI 781x R User Manual 1-4 ni.com reconfigure the device in another application for four independent timed loops with separate I/O resources. User-Defined I/O Resources You can create your own custom measurements using the fixed I/O resources. For example, one application might...

Chapter 1 Introduction © National Instruments Corporation 1-5 NI 781x R User Manual Software accesses the R Series device through the bus interface. The FPGA connects the bus interface and the fixed I/O to make possible timing, triggering, processing, and custom I/O measurements using the LabVIEW FP...

Chapter 1 Introduction NI 781x R User Manual 1-6 ni.com and functions to control the I/O, timing, and logic of the R Series device and generate interrupts for synchronization. Select Help»Search the LabVIEW Help to view the LabVIEW Help . In the LabVIEW Help , use the Contents tab to browse to the F...

Chapter 1 Introduction © National Instruments Corporation 1-7 NI 781x R User Manual 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 listed in Table 1-2. Refer to Appendix B, C...

Chapter 1 Introduction NI 781x R User Manual 1-8 ni.com Safety Information The following section contains important safety information that you must follow when installing and using the NI 781 x R. Do not operate the NI 781 x R in a manner not specified in this document. Misuse of the NI 781 x R can...

Chapter 1 Introduction © National Instruments Corporation 1-9 NI 781x R User Manual Operate the NI 781 x R at or below the measurement category 1 listed in the Environmental section of Appendix A, Specifications . Measurement circuits are subjected to working voltages 2 and transient stresses (overv...

Chapter 2 Hardware Overview of the NI 781x R NI 781x R User Manual 2-2 ni.com NI 7811R Overview The NI 7811R has 160 bidirectional DIO lines and a one million gate FPGA. NI 7813R Overview The NI 7813R has 160 bidirectional DIO lines and a three million gate FPGA. Digital I/O You can configure the NI...

Chapter 2 Hardware Overview of the NI 781x R NI 781x R User Manual 2-4 ni.com Figure 2-2 shows DIO<0..3> configured for digital input and DIO<4..7> configured for digital output. Digital input applications include receiving TTL, LVTTL, CMOS, or LVCMOS signals and sensing external device ...

Chapter 2 Hardware Overview of the NI 781x R © National Instruments Corporation 2-5 NI 781x R User Manual lines are labeled RTSI/TRIG<0..6> and RTSI/OSC. On the NI PXI-781 x R, the RTSI trigger lines are labeled PXI/TRIG<0..7>. In addition, the NI PXI-781 x R can use the PXI star trigger...

Chapter 2 Hardware Overview of the NI 781x R NI 781x R User Manual 2-6 ni.com Caution Do not drive the same PXI local bus line with the NI PXI-781 x R and another device simultaneously. Such signal driving can damage both devices. NI is not liable for any damage resulting from such signal driving. T...

Chapter 2 Hardware Overview of the NI 781x R © National Instruments Corporation 2-9 NI 781x R User Manual Complete the following steps to prevent a VI stored in flash memory from loading to the FPGA: 1. Power off and unplug the PC or the PXI/CompactPCI chassis. 2. Remove the NI 781 x R from the PCI ...

© National Instruments Corporation A-1 NI 781x R User Manual A Specifications This appendix lists the specifications of the NI 781 x R. These specifications are typical at 25 °C unless otherwise noted. Digital I/O Number of channels ............................... 160 input/output Compatibility .......

Appendix A Specifications NI 781x R User Manual A-2 ni.com Reconfigurable FPGA Number of logic slices NI 7811R .........................................5,120 NI 7813R .........................................14,336 Equivalent number of logic cells NI 7811R .........................................11...

Appendix A Specifications © National Instruments Corporation A-3 NI 781x R User Manual Power Requirement +5 VDC (±5%) NI 7811R......................................... 9 mA (typ), 50 mA (max) 1 NI 7813R......................................... 9 mA (typ), 50 mA (max) 1 +3.3 VDC (±5%) NI 7811R..........

Appendix A Specifications NI 781x R User Manual A-4 ni.com Environmental Operating Environment The NI 781 x R is intended for indoor use only. Ambient temperature range ....................0 °C to 55 °C, tested in accordance with IEC-60068-2-1 and IEC-60068-2-2 Relative humidity range..................

Appendix A Specifications © National Instruments Corporation A-5 NI 781x R User Manual Safety The NI 781 x R is designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use: • IEC 61010-1, EN 61010-1 • UL 61010-1, CAN/CS...

Appendix B Connecting I/O Signals NI 781x R User Manual B-4 ni.com end of the cable into the appropriate I/O connector and connect the other end of the cable to the appropriate signal accessory. Caution Connections that exceed any of the maximum ratings of input or output signals on the NI 781 x R c...

Appendix B Connecting I/O Signals © National Instruments Corporation B-5 NI 781x R User Manual Connecting to SSR Signal Conditioning NI provides cables that allow you to connect signals from the NI 781 x R directly to SSR backplanes for digital signal conditioning. The NSC68-5050 cable is designed t...

Appendix D Technical Support and Professional Services NI 781x R User Manual D-2 ni.com • Calibration Certificate —If your product supports calibration, you can obtain the calibration certificate for your product at ni.com/calibration . If you searched ni.com and could not find the answers you need,...

© National Instruments Corporation G-1 NI 781 x R User Manual Glossary Symbol Prefix Value p pico 10 – 12 µ micro 10 – 6 m milli 10 – 3 M mega 10 6 A A Amperes. ASIC Application-Specific Integrated Circuit—A proprietary semiconductor component designed and manufactured to perform a set of specific f...