Learn how to save and load programs on the Mitsubishi FX5U PLC using an SD card. This step-by-step guide makes it easy to back up, transfer, and deploy PLC programs quickly using GX Works3
The Mitsubishi FX5U PLC makes it easy to save and load programs using an SD card. This is a handy feature if you need to:
Transfer a program to another PLC
Back up your work
Quickly set up a new PLC with the same program
In this guide, we’ll walk you through the steps to save your PLC program onto an SD card and load it into another FX5U unit.
Why Use an SD Card with the FX5U?
Using an SD card with the FX5U PLC helps you:
Save time during setup
Move programs between PLCs
Create backups for safety
Restore a program if needed
Step-by-Step Guide
Step 1: Open Your Project in GX Works3
Start by opening your FX5U PLC project in the GX Works3 software.
Step 2: Go to Memory Card Settings
In GX Works3, go to the “Parameter” section.
Click on “Module Parameter.”
Then choose “Memory Card Parameter.”
This is where you set how the PLC will use the SD card.
Step 3: Change the Boot Setting
Find the section called “Boot Setting.”
Look for the option: “Operation Setting at CPU Built-in Memory Boot.”
Set this to “Clear.”
This tells the PLC to load the program from the SD card instead of the built-in memory.
Step 4: Choose the Program Files to Boot
Click on “Boot File Setting.”
Select the program files the PLC should use.
Only select files that are needed—remove any that don’t belong.
Step 5: Write the Files to the SD Card
Click “Select All” to highlight the files.
Then write them to the SD card using GX Works3.
Now your SD card is ready to use with the FX5U.
Step 6: Insert the SD Card and Power On the PLC
Insert the SD card into the SD card slot on the FX5U PLC.
Turn the PLC on.
The PLC will automatically load the program from the SD card into its internal memory.
Step 7: Remove the SD Card
After the program is loaded:
You can remove the SD card.
The PLC will keep running using the program in its internal memory.
Using an SD card with the Mitsubishi FX5U PLC is a simple and effective way to manage your programs. Whether you’re updating multiple units or creating backups, following these steps makes the process smooth and fast.
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