Precautions - Mitsubishi Electric MELSEC iQ-R Series User Manual

■Procedures for returning the FUNCTION LED to the flashing state
The following describes the procedures for returning the FUNCTION LED to the flashing state when program restoration
information is not written.

Precautions

The following describes the precautions for the program restoration information write selection.
Precautions when using the boot operation
• When using the boot operation, always write program restoration information. When "No" is selected in "Program Restore
Information", the SD memory card cannot be specified for the write destination.
• If online change is executed during boot operation with "No" being selected in "Program Restore Information", the change
is not reflected in a program in the transfer source SD memory card.
Precautions when writing only program restoration information
The initial global label value file and initial local label value file are also written at writing only program restoration information.
In redundant mode
Only when the firmware version of the CPU modules in both systems supports the program restoration information write
selection, "Not to Write" can be selected.
1.
Check that SM386 (Program restoration information write status LED control setting
mode) is turned on (without LED flashing).
2.
Set "AFA0H" to SD384 (System operation setting).
3.
Turn off and on SM384 (System operation setting request). SM384 is automatically turned
off. If writing has failed, SM385 (System operation setting error) is turned on and an error
is stored in SD385 (System operation setting error cause).
4.
Check that SM385 is off, and turn off or reset the CPU module.
5.
The FUNCTION LED flashes and SM386 turns off (LED flashing). b1 of SD1488 (Debug
function usage status) is turned on.
Appendix 10 Program Restoration Information Write Selection
A
APPX
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