RS485 TO ETH (B) Connect Alibaba Cloud And EMQX

Hardware Connection

Preparation

• PC x 1
• RS485 TO ETH(B) x 2

How To Connect

Software Preparation

• Alibaba Cloud
• EMQX Cloud
• VirCOM

Start Communication

• Open Vircom->Device Management-> Double-click the corresponding device ->Firmware Config->MQTT Config.

• Alibaba cloud platform -> Device -> Device Information.

• Configure the MQTT parameters of the Alibaba Cloud IoT platform to one of the RS485 TO ETH (B).

• Download MQTT parameters to RS485 TO ETH(B).

• Check the parameter of MQTT text in the corresponding file.

• Config MQTT parameter -> The Link light of RS485 TO ETH changes from yellow to blue -> successfully connected to the MQTT server

• IoT platform device display offline -> online.

• RS485 TO ETH(B) sends data to Alibaba Cloud MQTT server.

• Alibaba Cloud IoT platform sends information to RS485 TO ETH(B).

• RS485 TO ETH (B) Connect Alibaba Cloud and EMQX (optional).

Open Vircom->Device Management->Double-click the corresponding device->Firmware Config->MQTT Config.

• Configure EMQX's MQTT parameters to another RS485 TO ETH(B)

• Alibaba Cloud sends data to EMQX: Hello, EMQX!

• EMQX sends data to Alibaba Cloud: Hi, ALY!