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• Configuration Error (PLCN0049): Server URL '...' has to match the pattern: 'opc.tcp://<IPv4-address or Domain>[:Port][/Path]'.

Configuration Error (PLCN0049): Server URL '...' has to match the pattern: 'opc.tcp://<IPv4-address or Domain>[:Port][/Path]'.

In the OPC Client configuration of the, an invalid network address is specified in the properties of a server connection. Using this address, the client identifies the server connection that is used for the data exchange. The connection must be specified for each defined variable mapping.

Remedy

Open the 'Client Connections' editor and define a valid server address which also includes the opc.tcp prefix. Optionally the port can be specified. If omitted, the default OPC UA discovery port 4840 is used.