Price may vary with addition of accessories and services.
Contact us with questions for pricing.
Online purchasing is unavailable. NI currently does not offer online purchasing for your selected country. Please work with one of our distributors who can help you find what you need.
The NI‑9871 adds RS485/RS422 serial ports to CompactRIO systems. The serial ports are accessed directly from the FPGA to offer you flexibility in communicating with serial devices. The module has individual buffers on every port that save FPGA space and simplify programming. The NI‑9871 supports standard start bit, stop bit, and handshaking settings. It uses an external power to provide maximum compatibility and reliability under all serial port conditions.
You can request repair, schedule calibration, or get technical support. A valid service agreement may be required.
Search for answers to frequently asked questions and troubleshooting tips for common errors written by NI engineers.
Ask questions, explore solutions, and participate in discussions with other NI Community members.
Access hundreds of self-paced lessons, application-focused learning paths, and get started with product set-up tutorials.