Process Recipe Management Custom Message Handling
Process Recipe Management provides a means to transfer process specifications and to share the management of these specifications between the host and the equipment. CCF provides GEM-compliant Process Recipe Management through class RecipeHandler which handles Steam 7 functions used for formatted and unformatted process programs. In some cases, CCF users may want to implement equipment-specific recipe handling, which can be done by extending the methods of RecipeHandler. For example, to customize host-initiated S7F5 for a recipe to be uploaded from the equipment, create a subclass MyRecipeHandler from RecipeHandler, and override the RecipeRequest method.
Follow this same approach to use the customized message handling class properly: before creating the FactoryAutomationServer, create a CimConnectServices and assign it to the CimConnectServices instance. Then create the custom message handling class MyRecipeHandler and assign it to the corresponding property on the CimConnectServices.Instance.
Custom SECS-II Message Handling
CCF provides a mechanism that enables the equipment’s GEM interface to support any SECS-II messages. These can be additional SECS-II messages defined in the SEMI E5 standard but not supported by CCF, and/or they can be custom SECS-II messages defined by and required by the end user or by the equipment supplier. For example, if a user wants to handle a custom message S100F1, they can create a subclass CustomMessageHandler and let it implement the IGemHandler interface, and then initialize it by overriding the Initialize method of CIMConnectServices.
To learn more about GEM interface custom message handling, please schedule a time to talk with a Cimetrix representative by clicking the button below.
