BS EN IEC 61158-4-21:2023 - TC | 30 Jun 2023 | BSI Knowledge
Standard
BS EN IEC 61158-4-21:2023
Industrial communication networks. Fieldbus specifications - Data-link layer protocol specification. Type 21 elements
Current
•
Published:
1 Scope
1.1 General
The DLL provides basic time-critical data communications between devices in an automated environment. Type 21 provides priority-based cyclic and acyclic data
communication using an internal collision-free, full-duplex dual-port Ethernet switch
technology. For wide application in various automation applications, Type 21 does
not restrict the cyclic/acyclic scheduling policy in the DLL.
Product Details
Descriptors
Data circuit-terminating equipment
CSMA/CD networks
Data transmission
Process control
Data processing
Real-time systems
Local area networks
Data transfer
Industrial
Automatic control systems
Computer networks
ICS Codes
25.040.40 Industrial process measurement and control