Applies To:
  • CitectSCADA
  • CitectHMI

How can I get my string data type substitution (i.e. ?STRING 1?) to work in super genies when using the OPC protocol? 

Simply change the BIT_WIDTH field in the <driver name>.dbf file from the current value to 1024 for the string data type. Then your strings in your super genies will start working. Of course you need to do a recompile first.

This applies for example when using the OPC, SNMPII and ASCII protocols in Citect.

If you look in the generic.dbf file (for GENERIC protocol), you will see that in there the BIT_WIDTH for the string data type has already been set to 1024.