5V DC RTU 4 Channel Relay Module with 7-24V Modbus and RS485/TTL Anti-reverse Connection

7-24V Modbus RTU 4 Channel Relay Module RS485

Control 4-way input signal detection and 2-way relay output with Modbus RTU protocol.

• 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)
• Output signal: Relay switch signal, support manual, flash-off, flash-off mode
• Device address: Range 1-255, default 255, support power-down save
• Onboard relay: One 5V, 10A / 250V AC 10A / 30V DC relay
• Supply voltage: DC7-24V, with input anti-reverse protection
• Board Dimension (L x W x H) mm: 90 x 92 x 20
• Weight: 92gm

Top Features:

• Mature and stable 8-bit MCU
• MAX485 level conversion chip
• Supports manual, flash-off, flash-off mode
• Short response time

This 7-24V Modbus RTU 4 Channel Relay Module RS485 is equipped with a mature and stable 8-bit MCU and RS485 level communication chip, adopting the standard MODBUS RTU format RS485 communication protocol. It can realize 4-way input signal detection and 2-way relay output, suitable for digital detection or power control occasions.

The module features onboard one 5V, 10A / 250V AC 10A / 30V DC relay with diode leakage protection and a short response time. It supports communication baud rates of 4800/9600/19200, with the default set at 9600bps for power saving. The device address range is 1-255, with the default set at 255 and supports power-down save functionality.

With a supply voltage of DC7-24V and input anti-reverse protection, this relay module is reliable and efficient for various applications.

* Images are for illustration only; actual product may vary.