From 8:00 AM - 6:00 PM CST on Saturday, April 29, ni.com will be undergoing system upgrades that may result in temporary service interruption. We appreciate your patience as we improve our online experience.
(PXI Serial Instrument Control Module)
2-Port, RS485/RS422 PXI Serial Instrument Control Module—The PXI‑8431/2 is a high-performance interface for high-speed communication with RS485 and RS422 devices. It features high-performance DMA transfers, multithreading, and multiprocessor support. You can also select between 4‑ and 2‑wire transceiver modes for full- and half-duplex communication. NI serial interfaces also appear as standard COM ports for compatibility with programs that use serial communications.
Product Support Resources
Find complete product documentation to learn how to get started and use the product.
Locate supported instrument drivers and downloads for the product.
Explore a wide range of support content, including examples and troubleshooting information.
Network, share, and ask questions with other members of the NI community.