M120T is industrial remote Ethernet IO module that has one Ethernet port, one RS485, four DI, four DO, four AI, and two AO interface, and it supports high-speed pulse counting and pulse output. It supports MQTT, Modbus TCP and Modbus RTU protocols, and it provides TCP client and TCP server services. It adopts metal shell to enhence EMC resistance to electromagnetic interference. It is widely used in the field of industrial automation.