Property is indexed. Possible indexes are from 1 to 12.
The property manages a second GUID that is required during a PLC data exchange in AutomationML format. The GUID is generated automatically and should normally not be modified manually. Only the index [1] is used here. In this property the GUID of the symbolic address is stored at PLC connection points that are digital or analog inputs / outputs. At PLC boxes the GUID of the rack is stored in this property.
