... digital tube display, local data queryCurrent ratio programmable settingsSupport for RS-485 communication, Modbus-RTU protocolSupport for switching input, output, analog ... , AC380V, AC100V, DC48V, DC24VPower consumption < 4VAFunction moduleCommunication interface 1 way RS-485 communication, Modbus-RTU protocol baud rate: 1200~9600bps, the ...