For more than 20 years, Advantech offers versatile remote IO module to the market. The recent launched Ethernet IO and Wireless IO which are broadly used in IoT or other industrial applications, such as facility monitoring, environment monitoring, and industrial process control. Advantech distributed remote IO modules are categorized into two families, Ethernet IO (ADAM-6000 series) and RS-485 IO (ADAM-4000 series), which are subdivided into Analog IO and Digital IO modules. Some of them support Modbus RTU communication protocol.