Modbus-RTU 2-Channel Optocoupler Isolation 12V Relay Module with RS485/TTL Communication

📖Description:

• This relay module features 2 channels with optocoupler isolation for enhanced signal stability and protection against interference. It supports Modbus RTU communication protocol and operates at 12V, making it ideal for industrial automation and remote-control applications. The RS485 and TTL communication interfaces provide versatile connectivity options for different systems.

⚙️Key Features:

• 2 Relay Channels: Independent control for two outputs.
• Optocoupler Isolation: Enhances safety and protects against electrical interference.
• Modbus RTU Protocol: Reliable and standardized communication for industrial use.
• RS485/TTL Communication: Offers flexible integration with various devices.
• 12V Operating Voltage: Suitable for low-power control applications.

🛠️Common Applications:

• Industrial automation systems
• Remote monitoring and control
• IoT device integration
• Smart home solutions

📊Specifications:

1. RS485 communication interface
2. TTL communication interface
3. A user button
4. A user LED indicator
5. A power indicator
6. Power terminal interface (12V power supply)
7. 1 input
8. 1 output
9. 10.DC power carrier (12V power supply)
10. Power terminal interface (12V power supply)

🗂️Modbus RTU instruction:

• Baud rate: 9600 8 NONE 1
• Hexadecimal transmission
• Hexadecimal reception

🚦Operation Steps:

1. Software selection communication baud rate 9600 fixed
2. Set the address (device address used for communication)

The default setting is 1 for the instruction.