• Support Mitsubishi GX-Develoer\GX-WORK2
  • Support for human-machine interface connection, the application is completely equivalent to Mitsubishi FX3U
  • Support ladder programming, download, monitoring. 
  • The programming port used for program download and communication with the human machine 
  • This PLC adopts an industrial-grade 32-bit MCU with strong anti-interference, and its running speed far exceeds that of FX3U. 
  • This PLC transmission baud rate is 38400

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LE3U PLC Manual

Test Video and Plc Program Example


le3u-24mt wire
le3u-32mt wire
le3u-48mr wire

LE3U Cell

DB9 connector pinout

2 (Rxd), 3 (Txd), 5 (GND) pin


1. DC+ 24V power supply input positive pole
2. DC- 24V power supply input negative pole
3. Com Input common, low level
4.What is ” JO” CAL & CAH ?
CAN function is temporarily not supported
5.The working principle of RS485 communication is as follows:
Our le3u series PLC support MODBUS-RTU


LE3u-MCGS examplc

LE3U PLC Upload and Download

Do not connect with rs232c

Must be create new project, not load project from PLC

AD and DA I can do input and output how to read and write


6 thoughts to “LE3U PLC”

  1. Olá amigo PLC FX3U
    Eu utilizo GX developer para programar só que esta acontecendo o seguinte
    Não aparece para mim o transfer setup para que eu possa escolher a porta serial
    você pode por gentileza me ajudar

  2. I want to read analog input on the first LE3u from the second LE3U using RD3A k1 k0 D1, can I need to rs485 physical port or protocol, what is other method, and how to connect wires to can be using the second LE3U board as a extension module. Please guide for me, sent guiding document to dhauto.ltd@gmail.com. thanks so much.

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