PM583-ETH Central Processing Unit. Small CPU 1MB User Program, 24 V DC power supply, Memory Card Slot, 2x RS-232/485 serial interfaces (Programming, ASCCI, MODBUS/CS31), 1x FieldBusPlug slave interface, LCD Display, with integrated Ethernet TCP/IP coupler (Programming,UDP/IP, ModbusTCP) built In Web Server. SKU – 1SAP140300R0271