Mitsubishi Electric MELSEC iQ-R Series User Manual page 690

No. Name
SD626 Extended SRAM
cassette capacity
identification
information
SD629 Program memory write
(transfer) status
SD630 Program memory write
count index
SD631
SD633 Data memory write
(transfer) status
SD634 Index for the number of
data memory write
SD635
operations
*1 It is stored when used for the Ethernet function of CPU module.
*2 When the save destination for the event history is the data memory: the event history will be stored at the timing of powering off and on
and resetting the CPU module. Accordingly, since the data will be written into the data memory, "100" is stored. (When the save
destination for the event history is the SD memory, the initial value remains "0".)
APPX
688
Appendix 5 List of Special Register Areas
Data stored
Capacity identification information
of the Extended SRAM cassette
Write (transfer) status display
(percent)
Index of the number of write
operations up to now
Write (transfer) status display
(percent)
Index of the number of write
operations up to now
Details
Capacity identification information of the Extended SRAM
cassette is stored.
Unmounted: 0, 1M: 1, 2M: 2, 4M: 3, 8M: 4, 16M: 5
This register displays write (transfer) status to the program
memory in percentage (0 to 100%). The initial value is "0".
Upon completion of writing, this register is set to "100". It is
set to "0" at the time when the write command is issued.
• This register indicates the index value for the number of
write operations to the program memory up to now (stored
as a 32-bit BIN value). However, the number of write
operations is not equal to the index value.
• When the index value exceeds 100000, an error is
generated (the index value is continued to be counted
even when it exceeds 100000). If the index value exceeds
100000, the CPU module must be replaced.
This register displays write (transfer) status to the data
memory in percentage. (0 to 100%). The initial value is "0".
Upon completion of writing, this register is set to "100". It is
set to "0" at the time when the write command is issued.
• This register indicates the index value for the number of
write operations to the data memory up to now (stored as
a 32-bit BIN value). However, the number of write
operations is not equal to the index value.
• When the index value exceeds 100000, an error is
generated (the index value is continued to be counted
even when it exceeds 100000). If the index value exceeds
100000, the CPU module must be replaced.
Set by (setting
timing)
S (Initial)
S (Writing)
S (Writing)
S (Writing)
*2
S (Writing)