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APPX
Appendix 12 Program Restoration Information Write Selection
Appendix 12Program Restoration Information Write
Selection
Program restoration information includes the information required to read a program from the programmable controller with
the engineering tool. ( Page 93 Data allocation and procedure of read/write operations)
Generally, use the CPU module with program restoration information written. However, writing of program restoration
information can be disabled
*1
during writing to the programmable controller and online change.
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 operating procedures to disable the writing of program restoration information, 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.
*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.
• If using the setting for the programmable controller CPU (except for the R00CPU, R01CPU, or R02CPU), Process CPU, or Safety CPU, check the versions of
the CPU module and engineering tool. ( Page 1008 Added and Enhanced Functions)
Item Description Reference
SM387 (Program restoration information
write status)
Off: All written
*1
On: Not all written
*2
Page 806 System information
SD1488 (Debug function usage status) b1: Program restoration information write status
Off: All written
*1
On: Not all written
*2
Page 869 Debug function
FUNCTION LED Off: All written
*1
Flashing: Not all written
*2
Monitor status of GX Works3 All written
*1
(Data can be read from the programmable
controller.)
GX Works3 Operating Manual
Not all written
*2
(Data cannot be read from the
programmable controller.)
RnCPU
RnENCPU
RnSFCPU RnSFCPU
RnPSFCPU RnPSFCPU
RnPCPURnPCPU
(Standard) (Safety)(Standard) (Safety)
(Redundant)
(Process)
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