National Instruments NI 783xR - Manuals

Contents NI 783xR User Manual vi ni.com Input Modes ................................................................................................................... 2-6 Differential Connection Considerations (DIFF Input Mode) ......................... 2-8 Differential Connections for Ground-Refer...

© National Instruments Corporation vii NI 783xR User Manual About This Manual This manual describes the electrical and mechanical aspects of the National Instruments 783 x R devices and contains information about programming and using the devices. Conventions The following conventions appear in this...

About This Manual NI 783xR User Manual viii ni.com 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 ty...

About This Manual © National Instruments Corporation ix NI 783xR User 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 •...

© National Instruments Corporation 1-1 NI 783xR User Manual 1 Introduction This chapter describes the NI 783 x R, the concept of the Reconfigurable I/O (RIO) device, optional software and equipment for using the NI 783 x R, and safety information about the NI 783 x R. About the NI 783 x R The NI 783...

Chapter 1 Introduction NI 783xR User Manual 1-2 ni.com The NI 783 x R uses the Real-Time System Integration (RTSI) bus to easily synchronize several measurement functions to a common trigger or timing event. The NI PCI-783 x R accesses the RTSI bus through a RTSI cable connected between devices. The...

Chapter 1 Introduction © National Instruments Corporation 1-3 NI 783xR 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 783x ...

Chapter 1 Introduction NI 783xR User Manual 1-4 ni.com 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. Ano...

Chapter 1 Introduction © National Instruments Corporation 1-5 NI 783xR User Manual 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...

Chapter 1 Introduction NI 783xR User Manual 1-6 ni.com 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 p...

Chapter 1 Introduction © National Instruments Corporation 1-7 NI 783xR 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, as shown in Table 1-2. Table 1-2. Cables an...

Chapter 1 Introduction NI 783xR User Manual 1-8 ni.com Refer to Appendix B, Connecting I/O Signals , for more information about using these cables and accessories to connect I/O signals to the NI 783 x R. Refer to ni.com/products or contact the sales office nearest to you for the most current cablin...

Chapter 1 Introduction © National Instruments Corporation 1-9 NI 783xR User Manual signals that you need to the connector of your choice. Refer to Appendix B, Connecting I/O Signals , for the NI 783 x R connector pinouts. Safety Information The following section contains important safety information...

Chapter 1 Introduction NI 783xR User Manual 1-10 ni.com to the system. Remove power from signal lines before connecting them to or disconnecting them from the NI 783 x R. Operate the NI 783 x R at or below the measurement category 1 listed in the section Maximum working voltage , in Appendix A, Spec...

Chapter 2 Hardware Overview of the NI 783x R NI 783xR User Manual 2-2 ni.com Figure 2-2. NI 7831R/7833R Block Diagram NI 7830R Overview The NI 7830R has four independent, 16-bit AI channels; four independent, 16-bit AO channels; and 56 bidirectional DIO lines that you can configure individually for ...

Chapter 2 Hardware Overview of the NI 783x R © National Instruments Corporation 2-3 NI 783xR User Manual ± 10 V. The converters return data in two’s complement format. Table 2-1 shows the ideal output code returned for a given AI voltage. Input Modes The NI 783 x R input mode is software configurabl...

Chapter 2 Hardware Overview of the NI 783x R NI 783xR User Manual 2-4 ni.com Input Range The NI 783 x R AI range is fixed at ± 10 V. Connecting Analog Input Signals The AI signals for the NI 783 x R are AI<0.. n >+, AI<0.. n > –, AIGND, and AISENSE. For the NI 7830R, n =4. For the NI 783...

Chapter 2 Hardware Overview of the NI 783x R NI 783xR User Manual 2-6 ni.com 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. The following sections describe these two sig...

Chapter 2 Hardware Overview of the NI 783x R NI 783xR User Manual 2-8 ni.com Differential Connection Considerations (DIFF Input Mode) In DIFF input mode, the NI 783 x R measures the difference between the positive and negative inputs. DIFF input mode is ideal for measuring ground-referenced signals ...

Chapter 2 Hardware Overview of the NI 783x R © National Instruments Corporation 2-11 NI 783xR User Manual You can fully balance the signal path by connecting another resistor of the same value between the positive input and AIGND, as shown in Figure 2-6. This fully balanced input mode offers slightl...

Chapter 2 Hardware Overview of the NI 783x R © National Instruments Corporation 2-13 NI 783xR User Manual positive and negative inputs of the instrumentation amplifier. The instrumentation amplifier rejects this difference. If the input circuitry of a NI 783 x R is referenced to ground in RSE input ...

Chapter 2 Hardware Overview of the NI 783x R NI 783xR User Manual 2-14 ni.com Analog Output The bipolar output range of the NI 783 x R AO channels is fixed at ± 10 V. Some applications require that the AO channels power on to known voltage levels. To set the power-on levels, you can configure the NI...

Chapter 2 Hardware Overview of the NI 783x R © National Instruments Corporation 2-15 NI 783xR User Manual Figure 2-9. Analog Output Connections Digital I/O You can configure the NI 783 x R DIO lines individually for either input or output. When the system powers on, the DIO lines are high impedance....

Chapter 2 Hardware Overview of the NI 783x R NI 783xR User Manual 2-18 ni.com signals or non-edge-sensitive, low-frequency digital signals. Examples of high-frequency or edge-sensitive signals include clock, trigger, pulse-width modulation (PWM), encoder, and counter signals. Examples of static sign...

Chapter 2 Hardware Overview of the NI 783x R NI 783xR User Manual 2-20 ni.com delay-matched trigger signal between the first peripheral slot and the other peripheral slots for precise trigger timing signals. For example, an NI PXI-783 x R in Slot 2 can send an independent trigger signal to each devi...

Chapter 2 Hardware Overview of the NI 783x R © National Instruments Corporation 2-23 NI 783xR User Manual 4. Reinsert the NI 783 x R into the PXI/CompactPCI chassis or PCI computer. Refer to the Installing the Hardware section of the Getting Started with the NI 783 x R document for installation inst...

Chapter 2 Hardware Overview of the NI 783x R NI 783xR User Manual 2-24 ni.com Field Wiring Considerations Environmental noise can seriously affect the measurement accuracy of the device if you do not take proper care when running signal wires between signal sources and the device. The following reco...

© National Instruments Corporation 3-1 NI 783xR User Manual 3 Calibration Calibration is the process of determining and/or adjusting the accuracy of an instrument to minimize measurement and output voltage errors. On the NI 783 x R, onboard calibration DACs (CalDACs) correct these errors. Because th...

Chapter 3 Calibration NI 783xR User Manual 3-2 ni.com If you have NI-RIO installed, you can find the internal calibration utility at Start»All Programs»National Instruments»NI-RIO» device »Calibrate 783 x R Device . Device is the NI PXI-783 x R or NI PCI-783 x R device. Immediately after internal ca...

Appendix A Specifications NI 783xR User Manual A-2 ni.com Maximum working voltage(signal + common mode) ........................Inputs should remain within ± 12 V of ground Overvoltage protection ...........................± 42 V Data transfers ..........................................Interrupts, p...

Appendix A Specifications © National Instruments Corporation A-3 NI 783xR User Manual Settling Time Crosstalk................................................. –80 dB, DC to 100 kHz Analog Output Output Characteristics Output type............................................. Single-ended, voltage out...

Appendix A Specifications © National Instruments Corporation A-5 NI 783xR User Manual Slew rate................................................. 10 V/ µ s Noise ...................................................... 150 µ V rms , DC to 1 MHz Glitch energy at midscale transition ........................

Appendix A Specifications NI 783xR User Manual A-6 ni.com Reconfigurable FPGA Number of logic slices NI 7830R .........................................5,120 NI 7831R .........................................5,120 NI 7833R .........................................14,336 Equivalent number of logic cel...

Appendix A Specifications © National Instruments Corporation A-7 NI 783xR User Manual Onboard calibration reference DC level .......................................... 5.000 V ( ± 3.5 mV) (actual value stored in Flash memory) Temperature coefficient .................. ± 5 ppm/°C max Long-term stabil...

Appendix A Specifications NI 783xR User Manual A-8 ni.com Physical Dimensions (not including connectors) NI PXI-783 x R..................................16 cm by 10 cm (6.3 in. by 3.9 in.) NI PCI-783 x R ..................................17 cm by 11 cm (6.7 in. by 4.3 in.) I/O connectors...............

Appendix A Specifications © National Instruments Corporation A-9 NI 783xR User Manual Relative humidity range ......................... 10% to 90%, noncondensing, tested in accordance with IEC-60068-2-56 Altitude................................................... 2,000 m at 25 ° C ambient temperatur...

Appendix A Specifications NI 783xR User Manual A-10 ni.com Safety The NI 783 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/CSA-C22.2 No. 61010-1 Note Re...

Appendix B Connecting I/O Signals NI 783xR User Manual B-4 ni.com Connecting to CompactRIO Extension I/O Chassis You can use the CompactRIO R Series Expansion chassis and CompactRIO I/O modules with the NI 783 x R. Refer to the CompactRIO R Series Expansion System Installation Instructions for infor...

Appendix B Connecting I/O Signals © National Instruments Corporation B-5 NI 783xR User Manual Connecting to 5B and SSR Signal Conditioning NI provides cables that allow you to connect signals from the NI 783 x R directly to 5B backplanes for analog signal conditioning and SSR backplanes for digital ...

Appendix D Technical Support and Professional Services NI 783xR 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 783xR User Manual Glossary Symbol Prefix Value p pico 10 – 12 n nano 10 – 9 µ micro 10 – 6 m milli 10 – 3 k kilo 10 3 M mega 10 6 G giga 10 9 Numbers/Symbols ° Degrees. > Greater than. ≥ Greater than or equal to. < Less than. ≤ Less than or equal to. –...