Modular Systems > National Instruments > R Series

PXI-7831R In Stock | Ships in 3-5 Days

Q: How many digital I/O does the NI PXI-7831R have?

The moduule is equipped with 96 digital I/O channels.

Q: Which input modes are available on the Multifunction RIO Module?

The PXI-7831R has the following input modes: DIFF, RSE, and NRSE. These modes are software-selectable.

PXI-7831R, 8 Analog Input, 96 Digital Lines, Multifunction Reconfigurable I/O Module

Rated 5/5 | 7 ratings

PXI-7831R National Instruments Multifunction Reconfigurable I/O Module | Apex Waves | Image

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Actual item may vary if no part number is provided on quote request.

✔ 2 Year Warranty Included

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✔ NIST Calibration Available

Anonymous Verified Buyer

" Very responsive and helpful, competitive pricing. Good source! "

July 2025

Andrew Gar**** Verified Buyer

" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "

March 2025

Said Sai**** Verified Buyer

" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "

January 2025

Bob C**** Verified Buyer

" Jason was able to get our emergency situation taken care of quickly and professionally. "

May 2025

Gregg Flecki**** Verified Buyer

" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "

January 2025

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Carol Zimme**** Verified Buyer

" Very responsive and helpful, competitive pricing. Good source! "

July 2025

Andrew Gar**** Verified Buyer

" Amazing to work with and had my order within 1 week after purchasing with all NI certs and data that were needed. "

March 2025

Said Sai**** Verified Buyer

" Competent contact for highly specialized components. The support team is very knowledgeable. Many thanks for the help and the fast shipping! "

January 2025

Bob C**** Verified Buyer

" Jason was able to get our emergency situation taken care of quickly and professionally. "

May 2025

Gregg Flecki**** Verified Buyer

" Great service and great products. This is my 2nd time using Apex Waves, truly impressed. "

January 2025

National Instruments PXI-7831R Reconfigurable Digital I/O Module

The National Instruments PXI-7831R Multifunction RIO Module has three adjustment levels accessible to ensure the exactness of its analog circuits. The principal level, stacking adjustment constants, is the speediest, most straightforward and least precise. The intermediate level, inner adjustment, is the preferred technique to guarantee precision in its application. The last level, the outside alignment, is the slower, harder and more exact adjustment level.

With inward alignment, the NI PXI-7831R Multifunction RIO Module can estimate and correct the greater part of its adjustment related errors with no outer signal associations. NI gives programming to perform an inside adjustment. This inward alignment process, which usually takes under two minutes, is the preferred technique for guaranteeing exactness in the user’s applications. Inside adjustment limits the impacts of any balance and pick up drifts, especially those because of changes in temperature. Amid the inside alignment process, the Analog Input and Analog Output channels are contrasted with the PXI-7831R locally available voltage reference. The device has 8 Analog Input and 8 Analog Output channels, with 96 digital I/O lines. The counterbalance and gain mistakes in the analog hardware are aligned out by altering the Cal DACs to limit these errors. The device operates using the NI-RIO driver software 1.1 or later, and is compatible with the software packages: LabVIEW 7.0 or later, LabVIEW FPGA Module 1.0 or later, LabVIEW Real-Time Module for ETS 7.0 or later. The cables available for use with the NI 7831R are: the SH68-C68-S for the MIO/DIO connector, SHC68-68-RMIO for the MIO connector, NSC68-262650 for the MIO connector, NSC68-5050 for the DIO connectors.

The NSC68-5050 cable interfaces the signals on the NI PXI-7831R Rio Digital I/O connectors straightforwardly to SSR backplanes for digital signal conditioning. This cable has a 68-pin male VHDCI connector on one side that attaches into the PXI-7831R RDIO connectors. The opposite end of this link gives two 50-pin female connectors. The NI device weighs 152 g, with the dimensions: 6.3 x 2.9 in.

PXI-7831R Obsolete Status has been announced by National Instruments, but the module will still be available for purchase and repairs by Apex Waves.

Model	PXI-7831R
Manufacturer	National Instruments
Series	R Series
Type	Multifunction RIO Module
FPGA	Virtex-II V1000
Analog Input Channels	8
Analog Output Channels	8
Dimensions	6.3 x 3.9 in.
Weight	152 g.
Warranty	2-3 Year Warranty
PXI-7831R Manual	User Manual and Maintenance Manual Available for Download
Price	Contact a sales representative for a quote.