Drive for electronic expansion valves for Modicon M171 PLC controllers. Designed to control the superheat level by modulating the valve position. Used in various types of cooling systems and refrigerants. Control is via Modbus. The module has a total of 8 integrated I/Os, including 2 digital and 4 analog inputs, 2 digital outputs. The power supply is via 24 VAC / 24 VDC. The connections are made using removable screw terminal blocks. Mounting on 35 mm top hat rail. Certified according to CE, UL, CSA, EAC, RCM, RoHS China.