This standard BS EN 61158-3-20:2014 Industrial communication networks. Fieldbus specifications is classified in these ICS categories:
35.110 Networking
35.100.20 Data link layer
25.040.40 Industrial process measurement and control
35.240.50 IT applications in industry
IEC 61158-3-20:2014 defines the services provided to the Type 20 fieldbus application layer at the boundary between the application and data-link layers of the fieldbus reference model and systems management at the boundary between the data-link layer and systems management of the fieldbus reference model. Type 20 DL-service provides both a connected and a connectionless subset of those services specified in ISO/IEC 8886.
