DIN EN 61158-4-21
Industrial communication networks - Fieldbus specifications - Part 4-21: Data-link layer protocol specification - Type 21 elements (IEC 61158-4-21:2010); English version EN 61158-4-21:2012, only on CD-ROM
inactive
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| Organization: | DIN |
| Publication Date: | 1 January 2013 |
| Status: | inactive |
| Page Count: | 105 |
| ICS Code (Microprocessor systems): | 35.160 |
| ICS Code (Data link layer): | 35.100.20 |
scope:
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, fullduplex 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.
Document History
DIN EN 61158-4-21
January 1, 2013
Industrial communication networks - Fieldbus specifications - Part 4-21: Data-link layer protocol specification - Type 21 elements (IEC 61158-4-21:2010); English version EN 61158-4-21:2012, only on CD-ROM
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...