200Pro is distributed multiprotocol edge computing IO controller based on IIoT technology, it supports OPC UA protocol, MQTT protocol and Modbus TCP protocol. It adopts the dual network port technology of unique MAC layer data exchange technology to realize cascade, the downtime of intermediate equipment does not affect the data transmission of subsequent equipment. Up to 32 IO such as AI, DI, DO, thermal resistance, thermocouple, RS485, and other types of IO can be extended