Google Chat: zj734465502@gmail.com
+86-0755-88291180
sales01@spotpear.com
dragon_manager@163.com
services01@spotpear.com
manager01@spotpear.com
WhatsApp:13246739196
This is an industrial 8-ch relay module controlled via RS485 bus, utilizing Modbus RTU protocol. It features embedded protection circuits such as power isolation, ADI magnetical isolation, and TVS diode, etc. It also comes with an ABS 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 requirements.
If you want to send other commands, please check HEX option and choose ModbusCRC16 parity. Input the commands and send.
For more details of the commands, please refero Protocol Manual of Modbus RTU Relay
sudo raspi-config
sudo reboot
You need to connect and RS485 devices to Raspberry Pi (the demo codes provided is based on our RS485 CAN HAT), Connect Modbus RTU Relay module to the RS485 CAN HAT, A to A and B to B.
Use the following commands to run the demo codes
sudo apt-get install p7zip wget https://www.waveshare.com/w/upload/f/f9/Modbus_RTU_Relay_Code.zip 7zr x Modbus_RTU_Relay.7z -r -o./Modbus_RTU_Relay cd Modbus_RTU_Relay/Python3 sudo python3 main.py
The Demo codes for STM32 is based on NULCEO-F103RB and RS485 CAN Shield module
Download the #demo codes and open the STM32 project by Keil software.
Program the codes to NUCLEO board
The codes will run and toggle the relay in turn.
The Arduino demo is based on Waveshare UNO Plus and RS485 CAN Shield
Open Arduino project and program it to the UNO board.
The codes will run and toggle the relay in turn.