PRODUCT DESCRIPTION
This device is a two-channel Modbus relay module equipped with an 8-bit MCU and an RS485 communication chip. It adheres to the standard MODBUS RTU format and the RS485 communication protocol. The module can detect one input signal and manage two relay outputs, making it ideal for digital detection or power control applications.
Features:
- On-board mature and stable 8bit MCU and MAX485 level conversion chip
- Communication protocol: support standard Modbus RTU protocol
- Communication interface: Support RS485 / TTL UART interface
- Communication baud rate: 4800/9600/19200, default 9600bps, support power saving
- Photocoupler input signal range: DC3.3-30V (This input cannot be used for relay control)
- Device address: range 1-255, default 255, support power-down save.
- Onboard one 5V, 10A / 250V AC 10A / 30V DC relay.
- Continuously attract 100,000 times, with diode leakage protection, short response time
- Onboard relay switch indicator
- Supply voltage: DC7-24V, with input anti-reverse protection.
Specification:
- On-board Chip: MAX485
- Communication protocol: Modbus RTU protocol
- Communication interface: Support RS485 / TTL UART interface
- Operating Voltage: 5VDC
- No. of Channel: 2
Package includes:
1 x 7-24V Modbus RTU 2 Channel Relay Module RS485
