One channel Modbus RTU relay module equipped with stable 8-bit MCU and RS485 level communication chip,adopt standard MODBUS RTU format RS485 communication protocol. It can realize 2-bit input signal detection and 2-bit relay output. It can be used for digital detection or power control occasions.
Support Modbus RTU protocol
Support RS485/TTL UART interface
Output indicator in multi mode
Address can be set
Support input reverse connection protection
Relay switch output
Support parameter memory function
Item name: Single Modbus Relay Module
Work voltage:DC 7V~24V
Baud rate:4800/9600/19600bps(default 9600bps)
Optocoupler input signal:DC 3.3V~30V
Set address:1~255
Relay contorl mode: ON/OFF,Delay_ON,Delay_OFF mode
Delay time: 0~6553.5s
Load: AC 250V 10A or DC 28V 10A
Protocol:Modbus RTU
Interface:RS485/TTL UART
Control channel: 1 channel
Operating Temperature:-20℃~85℃
Operating Humidity:5%~95%RH
Module Size:85*49*19mm