Archived:Available Protocols for Connecting cFP-180x to a Network

Updated May 4, 2021

National Instruments does not actively maintain this document.

This content provides support for older products and technology, so you may notice outdated links or obsolete information about operating systems or other relevant products.

Issue Details

What protocols are available for connecting a compact FieldPoint 180x to my network?

Solution

Compact FieldPoint 180x devices can be connected to an Ethernet network, an RS-232 network, or both. When using Serial communication, you can communicate with I/O modules using Modbus ASCII or Modbus RTU. When using an Ethernet connection, you can use Modbus TCP.

Note:

  • Ethernet/IP 16.0 is not an available protocol, as the newest Ethernet/IP driver (NI-Industrial Communications for Ethernet/IP 16.0) is not compatible with Compact FieldPoint devices.
  • Ethernet modules can read from or write to FieldPoint resources simultaneously.