IEC 61158-5-4 Ed. 3.0 en:2019

IEC 61158-5-4 Ed. 3.0 en:2019 Industrial communication networks - Fieldbus specifications - Part 5-4: Application layer service definition - Type 4 elements
standard by International Electrotechnical Commission, 04/10/2019

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IEC 61158-5-4 defines the services provided to the FAL user at the boundary between the user and the application layer of the fieldbus reference model, and Systems Management at the boundary between the application layer and Systems Management of the fieldbus reference model.