8-3
8.2 Troubleshooting
8.2.1 If ERROR/ALARM LED is Flashing
Condition: The self-diagnostic error occurs
Procedure 1
Check the error contents (error code) using the programming tool.
Using FPWIN GR
With the FPWIN GR Ver. 2, if a PLC error occurs during programming or debugging and the RUN mode
is changed to the PROG. mode, the following status display dialog box is displayed automatically.
Check the contents of the self-diagnosed error.
Status display dialog box
If the error is an operation error, the error
address can be confirmed in this dialog
box.
After correcting the error, click on the
“Clear Error” button to clear the error.
Key Point:
To display the status display dialog box, select “Status Display” under “Online” on the menu bar.
Procedure 2
<For error code is 1 to 9>
• Condition
There is a syntax error in the program.
• Operation 1
Change to PROG. mode and clear the error.
• Operation 2
Execute a total-check function using FPWIN GR to determine the location of the syntax error.
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