DIN EN 61158-4-7 : 2008 Title: Industrial communication networks - Fieldbus specifications - Part 4-7: Data-link layer protocol specification - Type 7 elements (IEC 61158-4-7:2007); English version EN 61158-4-7:2008, only on CD-ROM Year: 2008 Publisher: DIN Media GmbH Availability: Within 1-2 working days