IEC 61158-4-21 Ed. 3.0 en:2023

$273.00

Industrial communication networks – Fieldbus specifications – Part 4-21: Data-link layer protocol specification – Type 21 elements
standard by International Electrotechnical Commission, 03/01/2023

Document Format: PDF

Description

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

Edition:
3.0
Published:
03/01/2023
ISBN(s):
9782832265550
Number of Pages:
114
File Size:
1 file , 2.3 MB
Note:
This product is unavailable in Ukraine, Russia, Belarus

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