Multiple Alarm Limits

You use the Multiple Alarm Limits feature to apply different alarm limits in different circumstances. You can switch a group of Configuration items from one set of alarm limits to another defined set of alarm limits. For example, you can switch a group of points from using a 'Summer' set of alarm limits to a 'Winter' set of alarm limits when the seasons change (see Switch Between Multiple Alarm Limits). The SCADAPack x70 protocol-specific points that are associated with the SCADAPack x70 Configuration items inherit their alarm limits from those Configuration items.

A Group's Status display shows which alarm limits apply to the Group and the SCADAPack x70 Configuration items that are in the Group. The Group's alarm limits status does not necessarily apply to any SCADAPack x70 protocol-specific points within that Group. This is because those points inherit their alarm limit settings from the SCADAPack x70 Configuration items with which they are associated (which might be in a different Group). A SCADAPack x70 protocol-specific point's Status display shows which alarm limits are in use and inherited from the associated Configuration item. A Configuration item's Status display shows which alarm limits are associated with the Configuration item and its associated points.

A SCADAPack x70 protocol-specific point inherits its alarm limits from the associated Configuration item, rather than the Group that contains the protocol-specific point. This behavior differs slightly to that of points on other drivers (see Alarm Limit Settings when a Point is Moved).