Shulou(Shulou.com)06/02 Report--

This article introduces the relevant knowledge of "Thingsboard access modubs". In the operation process of actual cases, many people will encounter such difficulties. Next, let Xiaobian lead you to learn how to deal with these situations! I hope you can read carefully and learn something!

I have studied thingsboard for a while. There is very little information on this piece. Now I will record the process and configuration of accessing modbus simulation equipment through the gateway for your reference:

I. Example scenario

Device data to TB gateway via serial port

TB Gateway to TB

tb initiates rpc call

tb gateway sends instructions to equipment

II. Environmental configuration

1. Configure serial port

2. configure slave station

3. configure master station

4. Test serial port

5. thingsbord and gateway

Thingsboard installation everyone see the official website, I use docker deployment method

thingsboard gateway, I downloaded the source code, Install python environment, Python tb_gateway.py can run

III. Software configuration

Create a new device in thingsboard, check "Gateway", there is nothing to say about this

tb_gateway.yaml configuration

modbus.json configuration

thingsboard configuration

a regular chain

rpc message encapsulation node

IV. Final Results

When thingsboard receives a parameter greater than 20 at address 0, it randomly writes data to address 5. This is the end of the modbus device access and remote control process.

"Thingsboard access modubs" content is introduced here, thank you for reading. If you want to know more about industry-related knowledge, you can pay attention to the website. Xiaobian will output more high-quality practical articles for everyone!

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