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This is an industrial 8-ch relay module  -8 input - 4 ADC - controlled via RS485 bus, utilizing Modbus RTU protocol. It features embedded protection circuits such as power isolation  TVS diode, etc. It also comes with an DIN Rail Mount enclosure.

The Modbus RTU Relay is very easy to use. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requiremen

     Power supply voltage: 5V
     Communication interface: RS485

• Baudrate:  9600
• Default communication format: 9600, N, 8, 1
• Relay channels: 8   
• Opto Isolated Inputs  - 8 
• Analoug Inputs -4 
• Contact form: 1NO 1NC
• Communication protocol: Standard Modbus RTU protocol
• RS485 address: 1~255
• LED indicators:
  
  • STA: MCU indicator, Power ON 
  • TXD: TX indicator, light up when sending data
  • RXD: RX indicator, light up when receiving data