Unexpected Data with Ethernet/IP Driver for LabVIEW

Updated Jun 7, 2018

Reported In

Software

  • LabVIEW

Driver

  • NI-Industrial Communications for Ethernet/IP

Other

ControlLogix PLC

Issue Details

I am using the NI-Industrial Communications for Ethernet/IP LabVIEW driver to communicate to my ControlLogix PLC. I’m getting an intermittent data transfer (sometimes I read zeroes, other times I get the data I expect) even though the PLC and the host are hardwired together. What can I do to resolve this?

Solution

Confirm that your IP address is set up properly for your PLC, and that your computer can ping it.

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