Appendix 10Program Restoration Information Write Selection; Checking The Program Restoration Information Write Status - Mitsubishi Electric MELSEC iQ-R Series User Manual

Appendix 10
Program restoration information includes the information required to read a program from the programmable controller with
the engineering tool. ( Page 140 Data allocation and procedure of read/write operations)
Generally, use the CPU module with program restoration information written.
With this setting, a format in which the program restoration information is not written or a format in which only the program
restoration information is written during writing to the programmable controller and online change can be selected.
Disabling the writing of program restoration information can shorten the time required for writing. This setting is useful to
change and write programs repeatedly in the short term such as system start-up and program debugging.
*1 Even if the program restoration information writing is disabled, an empty file of the same size as the program restoration information is
created in the data memory.
For the setting method and operating procedure, refer to the following.
 GX Works3 Operating Manual
When the program restoration information is not written, data cannot be read from the programmable
controller or the detailed verification result window cannot be displayed for verifying data with the
programmable controller. Therefore, always write program restoration information after the completion of work
such as system start-up and program debugging.
Before writing the program restoration information to a CPU module with no program restoration information by using the
online change, select "Write in Background" in the following option.
[Tool]  [Options]  "Convert"  "Online Program Change"  "Operational Setting"  "Write Program Restore
Information"

Checking the program restoration information write status

The write status of the program restoration information can be checked in the following ways.
Item
SM387 (Program restoration information
write status)
SD1488 (Debug function usage status)
FUNCTION LED
Monitor status of GX Works3
*1 Program restoration information of all programs is written.
*2 There are one or more programs whose restoration information is not written.
The records of the program restoration information write status are not retained in the event history. Check the
write status using the items described above.
Program Restoration Information Write
Selection
Description
*1
Off: All written
*2
On: Not all written
b1: Program restoration information write status
*1
Off: All written
*2
On: Not all written
*1
Off: All written
*2
Flashing: Not all written
*1
All written (Data can be read from the programmable
controller.)
*2
Not all written (Data cannot be read from the
programmable controller.)
Appendix 10 Program Restoration Information Write Selection
* 1
Reference
Page 649 System information
Page 697 Debug function

GX Works3 Operating Manual
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