Here’s a slightly modified version of the OPC-COM module that uses a different scheme for subscription names, that should hopefully eliminate that problem. You can upgrade from Configuration>Modules in the gateway. You shouldn’t need to restart the gateway, but it would be better to plan for a time when you could if necessary. When you upgrade, it should also send the module to the backup node.
Let me know if this helps. It’s for Ignition 7.5, that I saw you were running in the log file.
Regards,
OpcCom-module.modl (1.59 MB)