How can NODE-RED communicate with Mitsubishi FX3U? The communication uses Mitsubishi's programming port, but I couldn't find a usable node in NODE-RED. Has anyone done this before?

Industrial
1

Collect PLC data through the Mitsubishi programming port, but I couldn't find any usable nodes online.

2

you try modbus? use node-red as a master How to Configure FX3U PLC as a Modbus Slave and how to read write the data from PLC through Modbus

3

I tried the Mitsubishi FX programming port protocol. However, due to the large amount of discontinuous data that needed to be read, I attempted polling reading, which resulted in a delay of several seconds.

4

I bought a small device that can convert the Mitsubishi FX protocol to Modbus TCP protocol without programming, allowing direct data reading. I am now using Modbus TCP for the project.