3.2 Conventions used in this document

The conventions described in OPC 40083 apply.

The same applies to the Container Concept described in OPC 40083, especially the use of the Property NodeVersion:

"Several objects can occur several times in the parent object (e.g. several moulds in one machine). For these, container objects are modelled. The benefit is that all instances are collected in one object so that changes can be easily recognized by using a Property NodeVersion which can be subscribed by clients. According to OPC 10000-3 the instances of the container objects shall also trigger a GeneralModelChangeEvent."