IEC-61158-4-1 Complete Document History
Industrial communication networks - Fieldbus specifications - Part 4-1: Data-link layer protocol specification - Type 1 elements

Complete Current Edition:
   EDITION 2.0 - Part 4-1: Data-link layer protocol specification - Type 1 el - Aug. 15, 2014

Obsolete Revision Information:
   EDITION 1.0 - Part 4-1: Data-link layer protocol specification - Type 1 el - Dec. 1, 2007