... software on PC through RS485 interface Modbus/RTU protocol. DIN-Rail mounting temperature controller& transmitter CH-3000 Main Specifications:PID DIN ... -Rail controllerMuti input singnal:TC,RTD,mA,Volts Thermocouples( K, J, ... E, S, B, R, N, T) RTD's ( pt100. cu50) Linear signals( 0/1-5V, 0-20mA, 4-20mA RS485 serial ...