Every GEM compliant equipment must include a GEM compliance statement in the documentation. The table declares not only which features are implemented, but also indicates whether or not implemented features comply to the standards. This implies that an equipment can implement a limited GEM implementation and still be considered GEM compliant. Some of the GEM features simply are not appropriate for all manufacturing equipment. If a feature is implemented, but not quite compliant, then simply document the exception. Below is a sample GEM compliance statement.
The SECS/GEM standard requires relatively few features. If a machine implements a minimum GEM interface with only the required data variables, status variables, equipment constants, and collection events then the GEM interface is only marginally useful. The GEM interface's full value is realized only when the equipment supplier provides additional machine-specific alarms, data variables, status variables, equipment constants and collection events.
GEM Compliance Statement Sample
Note 1: Do not mark YES unless all fundamental GEM requirements are implemented and GEM Compliant.
Note 2: Additional capabilities can not be marked GEM-compliant unless the fundamental GEM requirements are GEM compliant.
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