32-Channel Relay RS485 Modbus RTU Relay 32CH

The RS485 32-CH Relay Module is an industrially deployable 32-channel relay that is controlled via the RS485 bus and uses the Modbus RTU protocol. It provides numerous protection circuits, easy handling, and reliable performance for industrial control applications. With a contact rating of ≤10A 250VAC/30VDC, it is ideal for controlling household appliances and devices under 30VDC. The rail-mounted ABS housing allows easy and safe installation. 

Recommended Accessories:

• Industrial USB to RS485 Converter 
• Industrial USB to RS485/422 Converter FT232RL 
  
• 5V DC 2000mA Wall Adapter AC/DC Adapter 5.5mm/2.1mm Plug 

Features: 

• The relay has configurable device addresses between 1 and 255. 
• The Flash-ON, Flash-OFF function allows the relay to automatically turn off after a period. 
• The relay has resettable TVS fuses to suppress overvoltages and voltage spikes. 
• The built-in relay driver chip with built-in freewheel diode protection, provides stronger and more stable control capability. 
• The ADI insulation allows signal isolation, high reliability, strong anti-interference, and low power consumption. 
• The optocoupler isolation prevents the relay from being disturbed by high voltage circuits. 
• The circuit is reversal polarity protected and protects against accidental wrong connections. 
• The relay has a rail-mountable ABS housing which is easy to install and safe in use. 
• The relay has 3LEDs as status indicators. 

Documentation: 

• Waveshare Wiki 

Technical Details: 

• Manufacturer: Waveshare 
• Manufacturer SKU: 25140 
• Operating Voltage: 7 to 36V DC 
• Communication Interface: RS485 
• Baud Rate: 4800, 9600, 19200, 38400, 57600, 115200, 128000, 256000 
• Standard Communication Format: 9600, N, 8, 1 
• Relay Channels: 32CH 
• Switching Power of Relay: 10A at 250VAC/30VDC 
• Contact Form: 1NO 1NC 
• Communication Protocol: Standard Modbus RTU Protocol 
• RS485 Address: 1~255 
• LED Indicators: 
• STA: MCU display, continuously blinks when the MCU is working normally 
• TXD: TX display, lights up when sending data 
• RXD: RX display, lights up when data is received 
• Dimensions: 300 x 110 x 59.1mm 
• Weight: 908g 

Scope of Delivery: 

• 1x 32-Channel Relay RS485 Modbus RTU Relay 32CH