Object ExtOpcDa

An extension of the PmVar variable of the PmaData object for the connection to the OPC DA communication. The data item is a client connected to OPC server. Format of saving the data extension as string:

The contents of complete data extension (all configurators) can be saved as a single string. See Format of saving the data extension as string.

Id={OpcDa;PmaObject;ItemId;AccessPath;K;Q;D}

This data extension registrates itself automatically into the PmaOpcDaClientGroup object after starting the application. Therefore it is not needed to create the requested item on the "PmaOpcDaClientGroup > Data" page! If all items for the PmaOpcDaClientGroup object are of the "Data extension" type, then the "PmaOpcDaClientGroup > Data" page may remain empty.