Communication lost with PLC

yahia_alem
Thu, 18 Sep 2025 14:44:37 +0000
Ignition

I’m wondering if anyone had issu similaire to this :

we have different plc connected to the scada and everything was okay

someone did a modification on the plc and then we lost connection from the scada for the concerned plc.

so we did a rollback on the plc and even after that we still dons’t have connection from the scada. the plc is pingable from other pc’s. and the configuration on the plc’s and the scada are exactly the same.

what can be the solution ? we are sur that everything on the network and the plc is good.

can we just try to remove and reinstalle the gateway ? knowing that we have two different scada and we lost connexion from both of them to the plc

12 posts - 7 participants