By default, all points in the OPCIS are included in a group named OPCDEFAULTGROUP. You can associate a point with a custom group.
To Assign an OPCIS Point to an OPCIS Group
Note: If the Point reference Type or Group facility ID field is left blank the point will be associated with the Default OPC Group (OPCDEFAULTGROUP). If you specify an OPC Group Facility for which a Group Definition point does not exist, the OPCIS will use the Default Group update rate.