LC 8 channel Modbus relay module equipped with mature and stable 8-bit MCU and RS485 level communication chip,adopt standard MODBUS RTU format RS485 communication protocol ,It can realize 8 channel optocoupler input signal detection and 8 channel relay output, can be used for digital detection or power control occasions.ġ.Onboard mature and stable STM8S103K3T6 MCU and MAX485 level communication chip.Ģ.Communication protocol:support standard Modbus RTU protocolģ. Communication Interface:support RS485/5V Level TTL UART interfaceĤ.Communication baud rate: 4800/9600/19200，default 9600bps, Support power-down save.ĥ.Optocoupler input signal range, DC3.3-30V(this input not available for relay control)Ħ.Output signal:relay switch signal, support manual control,flash OFF/ON mode,The delay base is 0.1S,the maximum allowable flash OFF/ON time is 0xFFFF*0.1S=65535*0.1S=6553.5Sħ.Device address:range:1-255,default 255,Support power-down saveĨ.Baud rate/optocoupler input status/relay status/device address can be read by software/commands.ĩ.On-board 8 channel 5V,10A/250V AC 10A/30V DC relay,can continuously sucking 100,000 times, it has Diode flow protection for short response times.ġ1. Modbus RTU 8 channel relay module RS485/TTL UART 8 channel input 8 channel output
