Cpu Module Data Backup/Restoration Function; Interrupt Pointer Mask Pattern - Mitsubishi Electric MELSEC iQ-R Series User Manual

CPU module data backup/restoration function

The following is the list of special register areas relating to the CPU module data backup/restoration function.
No. Name
SD1350 Number of uncompleted
folders/files of CPU
module data backup/
*2
restoration
SD1351 Progression status of
CPU module data
backup/restoration
SD1353 Upper limit value setting
for the number of CPU
module backup data
*1 When program files are restored, the progress in SD1351 stops while data is being written (transferred) to the program memory in the
restoration processing because the data is transferred from the program cache memory to the program memory. The progress of data
transfer to the program memory can be checked in SD629.
*2 There are restrictions on the firmware version of the CPU module and software version of the engineering tool. ( Page 747 Added
and Enhanced Functions)

Interrupt pointer mask pattern

The following is the list of special register areas relating to the mask pattern for interrupt pointers.
No. Name
SD1400 Interrupt pointer mask
to pattern
SD1463
APPX
696
Appendix 5 List of Special Register Areas
Data stored
Number of uncompleted
folders/files of CPU
module data backup/
restoration
Progression status of
CPU module data
*2
backup/restoration
Setting of the upper limit
value for the number of
*2
CPU module backup data
Data stored
Mask pattern
Details
This register indicates the number of folders/files where the backup/
restoration of the CPU module is not completed. When the backup/
restoration processing is started, the total number of folders and
files to be backed up or restored is stored. The number is reduced
one each time one folder/file is backed up or restored, and 0 is
stored when all the data is backed up or restored.
• This register indicates the progression status of the backup or
*1
restoration in percentage.
Range of the value: 0 to 100 (%)
• "0" is set at the start of the CPU module data backup.
Set the upper limit value for the number of the backup data for the
CPU module data backup. (1 to 100)
Details
The mask pattern for interrupt pointers is stored as shown in the
following figure:
b15
SD1400 I15 to
SD1401 I31 to
SD1463 I1023
to
Set by (setting
timing)
S (Status change)
S (Status change)
U
Set by (setting
timing)
S (at execution)
b1 b0
I1 I0
I17 I16
I1009 I1008