FX3GE Communication issue

2 posts in this topic

Hi all,

There's an issue I am facing for multiple FX3GE PLCs in a plant. Communication breaks between a PLC and OPC server. PLCs after few days (4-10) does not respond over ethernet. No ping response is received over network as well as when checked one to one direct connection. If I restart the PLC the connection is resumed and again after some days it goes down. Error LED on ethernet port does not glow red (no indication for error). If anybody has faced similar issue and has resolved, please share.

Edited by vikrantragit05

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i have had a similar issue with a connection to a Qseries. it turned out to be a poorly terminated RJ45 connection. it was remade and it has been fine since.

was a similar issue to yours apart from i could still communicate via a laptop with the GX developer software to try and fault find.

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