DIN EN IEC 61158-6-23 : 2020 Title: Industrial communication networks - Fieldbus specifications - Part 6-23: Application layer protocol specification - Type 23 elements (IEC 61158-6-23:2019); English version EN IEC 61158-6-23:2019, only on CD-ROM Year: 2020 Publisher: DIN Media GmbH Availability: Within 1-2 working days