1 Scope

This part of IEC 62451 defines the information model associated with Programs in the OPC Unified Architecture. This includes the description of the NodeClasses, standard Properties, Methods and Events and associated behaviour and information for Programs.

The complete Address Space model including all NodeClasses and Attributes is specified in IEC 62541‑3. The Services such as those used to invoke the Methods used to manage Programs are specified in IEC 62541‑4.