Hardware Needed to Connect My cDAQ Chassis to an Allen-Bradley PLC in LabVIEW

Updated Jan 31, 2018

Reported In


  • LabVIEW


  • NI-Industrial Communications for Ethernet/IP

Issue Details

I am trying to use Ethernet/IP to allow my cDAQ and PLC to exchange data. Is it possible to connect by purchasing another module for my Ethernet cDAQ chassis?


Another hardware module is not required for a PLC capable of Ethernet/IP communication to exchange data with a cDAQ program.

Essentially, all that is required is the Ethernet/IP Driver for LabVIEW and a computer that is able to see the PLC and cDAQ on the network. You are able to have your Ethernet/IP communication code in the same VI as the cDAQ code and pass data as you would between any sections of code within LabVIEW.

Additional Information

Some popular methods to pass data in LabVIEW are local variables, Functional Global Variables, and queues.

For more ways to pass data in LabVIEW please reference Data Communication Methods in LabVIEW


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