DIN EN 61158-6-12-2015 工业通信网络.现场总线规范.第6-12部分:应用层协议规范.12型元件(IEC 61158-6-12-2014).英文版本EN 61158-6-12-2014,仅在CD-ROM上
Industrial communication networks - Fieldbus specifications - Part 6-12: Application layer protocol specification - Type 12 elements (IEC 61158-6-12:2014); English version EN 61158-6-12:2014, only CD-ROM