LicOS-EC400 series PLC is a domestic independent programmable logic controller launched by UnionScience Technology Group, which has reached the first-class level in China. It Complies with PLCopen standard and has a variety of industrial field buses (Profinet, Ethercat, Modbus TCP, Modbus RTU, CANopen, etc.), as well as IOT communication protocols such as OPC UA Server and MQTT.