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Driver for the IEC 60870-5-101 (serial) and the IEC 60870-5-104 (TCP/IP) protocol.

The communication between zenon and the PLC is based on the serial IEC 60870-5-101 protocol or the TCP/IP protocol IEC 60870-5-104.

In the serial case, zenon works as the master in unbalanced communication mode. The communication channel can be shared between a 60870 Master (zenon) and several 60870 Slaves (PLC). For TCP/IP, zenon acts as the Master on protocol level and as a Client on TCP level.