Description
The NI PXI-7831R 1M Gate Multifunction RIO, part number 188133C-01, falls under the category of PXI R Series. This model, the PXI-7831, is designed to offer a comprehensive solution for your engineering needs with its multifunctional capabilities.
It boasts 8 analog inputs with a resolution of 16 bits, capable of a maximum sampling rate of 200 kS/s. The conversion time is remarkably fast at 4 µs, ensuring prompt data acquisition. The input voltage range is set at +10 volts, with a maximum input voltage threshold of +42 V to prevent damage, while the recommended working voltage is below 12 V.
In addition to analog inputs, this device is equipped with 8 analog outputs, also with a resolution of 16 bits. The maximum output update rate is an impressive 1 MS/s, with an update time of just 1 µs, facilitating rapid response to control signals.
For digital interfacing, the PXI-7831R provides 96 digital I/O terminals, supporting a wide range of programmability options including inputs, outputs, counters/timers, and custom logic. At the heart of its digital processing capabilities lies the Virtex-II V1000 FPGA, equipped with 720 kbits of RAM, which can be programmed using the LabVIEW FPGA module.
The device also supports signal conditioning and I/O expansion, interfaceable with the NI-9151, enhancing its versatility and adaptability to various project requirements. Despite its obsolete status, announced by National Instruments, it remains available for purchase and repairs through Apex Waves, ensuring ongoing support for users of this sophisticated multifunction RIO.
| Specification | Details |
|---|---|
| Part Number | 188133C-01 |
| Category | PXI R Series |
| Model | PXI-7831 |
| Description | NI PXI-7831R 1M Gate Multifunction RIO (8 AI, 8 AO, 96 DIO) |
| Analog Inputs | 8 |
| Analog Input Resolution | 16 bits |
| Max Sampling Rate | 200 kS/s |
| Conversion Time | 4 µs |
| Input Voltage Range | +10 volts |
| Max Input Voltage Without Damage | +42 V |
| Recommended Working Voltage | <12 V |
| Analog Outputs | 8 |
| Analog Output Resolution | 16 bits |
| Max Output Update Rate | 1 MS/s |
| Update Time | 1 µs |
| Digital I/O Terminals | 96 |
| Programmability | Inputs, outputs, counters/timers, custom logic |
| FPGA | Virtex-II V1000 |
| FPGA RAM | 720 kbits |
| Programming Language | LabVIEW FPGA module |
| Signal Conditioning and I/O Expansion | Supported, interface with NI-9151 |
| Obsolete Status | Announced by National Instruments, available for purchase and repairs by Apex Waves |
Question 1: What is the max AI sampling rate for PXI-7831R?
Answer 1: 200 kS/s
Question 2: How many digital I/O terminals does PXI-7831R have?
Answer 2: 96
Question 3: What FPGA is in the PXI-7831R?
Answer 3: Virtex-II V1000
Question 4: Is the PXI-7831R still supported for repairs?
Answer 4: Yes, through Apex Waves
Question 5: What’s the resolution of PXI-7831R’s AO?
Answer 5: 16 bits



