... 16xDO(relay) Communication port:built-in RS422/RS485 WECON 40 i/o plc,LX2N-40MRC-A,compatible with Mitsubishi Model LX2N- ... earth connection(do not share one place with high voltage system) *1Operating environmentClose corrosive,combustible gas, No large electrical ... ,support modbus,HMI,inverter and others device communication(optional)CAN:use board panel to extend(optional) Extension module Support to ...