BS EN IEC 61158-3-12:2019 Industrial communication networks. Fieldbus specifications Data-link layer service definition. Type 12 elements

Interfaces (data processing)
Communication procedures
Open systems interconnection
Fieldbus
Data link layer (OSI)
Automatic control systems
Data transmission
Communication networks
Bus networks
Computer networks
Process control
Industrial

Link: BS EN IEC 61158-3-12:2019 Industrial communication networks. Fieldbus specifications Data-link layer service definition. Type 12 elements
Source: BSI Standards

BS EN IEC 61158-5-4:2019 Industrial communication networks. Fieldbus specifications Application layer service definition. Type 4 elements

Fieldbus
Process control
Open systems interconnection
Communication procedures
Application layer (OSI)
Data transmission
Computer networks
Industrial
Interfaces (data processing)
Automatic control systems
Bus networks
Communication networks

Link: BS EN IEC 61158-5-4:2019 Industrial communication networks. Fieldbus specifications Application layer service definition. Type 4 elements
Source: BSI Standards

BS EN IEC 61158-3-19:2019 Industrial communication networks. Fieldbus specifications Data-link layer service definition. Type 19 elements

Interfaces (data processing)
Data link layer (OSI)
Data transmission
Open systems interconnection
Automatic control systems
Process control
Communication networks
Communication procedures
Computer networks
Industrial
Fieldbus
Bus networks

Link: BS EN IEC 61158-3-19:2019 Industrial communication networks. Fieldbus specifications Data-link layer service definition. Type 19 elements
Source: BSI Standards