Modbus-Rtu 1/2/4/8 Channel 12V Relay Module Switch Modbus RTU 4 Channel Relay Output 12V Switch Input RS485 TTL Communic

Description 1 This is a 1 2 4 8 Channel 12V Relay Output Board Module option 2 Easy to install 3 Good quality durable 4 Portable design easy to operate 5 Low power high precision RS485 TTL Communication 6 4 channel optocoupler isolation Specifications 1 RS485 communication interface2 TTL communication interface3 1 2 4 8 channel optocoupler isolation4 A user button5 A user LED indicator6 A power indicator7 Power terminal interface 12V power supply 8 DC power carrier 12V power supply 9 Power terminal interface 12V power supply Modbus RTU instruction Baud rate 9600 8 NONE 1Hexadecimal transmissionHexadecimal receptionOperation Steps 1 Software selection communication baud rate 9600 fixed2 Set the address device address used for communication The default setting is 1 for the instruction Package includes 1 x Relay Module