TwinCAT IEC 60870-5-10x enables communication according to the IEC standard 60870-5-10x from the PLC. Both server and client operating modes are possible. PLC library for the realization of masters for IEC 60870-5-101 (serial | general transmission protocol in network control technology) IEC 60870-5-102 (serial | energy meter) IEC 60870-5-103 (serial | protection devices) IEC 60870-5-104 (TCP/IP | general transmission protocol in network control technology) PLC library for the realization of slaves for IEC 60870-5-101 (serial | general transmission protocol in network control technology) IEC 60870-5-104 (TCP/IP | general transmission protocol in network control technology)