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Description
8-channel Modbus relay module:
- The 8-channel Modbus relay module is equipped with a mature and stable 8-bit MCU and RS485 level communication chip. Using standard MODBUS RTU format RS485 communication protocol, it can realize 8 input signal detection and 8 relay output, which can be used for digital quantity detection or power control occasions.
- Product parameter
- Onboard mature and stable STM8S103K3T6 MCU and MAX485 level conversion chip
- Communication protocol: support standard Modbus RTU protocol
- Communication interface: TTL UART interface supporting RS485/5V level
- Communication baud rate: 4800/9600/19200, default 9600bps, support power-off save
- Optocoupler input signal range: DC3.3-30V (this input cannot be used for relay control)
- Output signal: relay switch signal, support manual, flash word, flash mode, flash off/flash
- The base number of the interruption delay is 0.1S, and the maximum flash word/flash time can be set to OxFFFF*0.1S=6553.5S
- Device address: range 1-255, default 255, support power-off save
- Baud rate, input signal, relay status, device address can be read by software/command
- There are 8 5V, 10A/250V AC 10A/30V DC relays onboard, which can be continuously closed for 10 times, with diode effusion protection, and short response time
- On-board relay switch indicator
- Reserve the STM8 SWIM program programming port to support customers' secondary development and download their own firmware
- Power supply voltage: DC7-30V, using 5.08mm terminal power supply
Package Include:
- 1pc x 8-channel relay module
