Register Relationships This function allows one to map two or more registers into arelationship. As a requirement The device should have undergonetechnical installation. One can also define register relationship at the Register Group level. There are many types of Register Relationships like. Serial Switching Relationship Primary Rate – Secondary rate Relationship Control Relationship Resetting Relationship Pulse Relationship Usage Hour RelationshipFor more information on Register Relationship look into the help.sap site.http://help.sap.com/saphelp_erp60/helpdata/en/9f/03693582f4db60e10000009b38f889/frameset.htm
Serial Switching Serial Switching is only for Consumption Registers. Though there areways to implement this for Demand Registers but its recommendedto use to only for consumption meters. So there can be only one primary meter in a relationship. There can be one or more than secondary meters in a relationship. A secondary meter can also be a primary meter for other metersbut it would need to be defined in a separate relationship All secondary meters need to installed in the installation of theprimary meters : Billing Related installation. Its recommended that the field ‘Not relevant for Billing’ is selectedfor the secondary meters while installing it in primary installation. Register Relation ship can be created using transaction EG75.