For communication with your field devices or services, the server supports most popular communications protocols:
Communication with Modbus TCP, RTU over TCP, RTU, ASCII devices (as master or slave)
S7 for Siemens PLCs and Sinamics via Ethernet
Simple Network Management Protocol (SNMPv1, SNMPv2c)
InfluxDB Connector (database fields as OPC variables)
IEC 60870-5-104 (TCP/IP client)
OPC UA Client (access to external OPC UA servers)