This OPC UA Companion Specification shall define the required data structures, parameters, methods, state machines etc. for the communication among process air extraction and filtration systems (PAEFS), between process air extraction and filtration systems and preceding machinery, between process air extraction and filtration systems and supporting systems (e.g. technical ventilation, conveying systems) and from process air extraction and filtration systems into higher level manufacturing systems (e.g. Manufacturing Execution System, MES), for information and diagnostic purposes and to set parameters regarding the extraction and filtration system process.

Note: Compressed air is not considered in this Companion Specification.