Mitsubishi Electric MELSEC iQ-R Series - Page 690

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APPX
Appendix 5 List of Special Register Areas
*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".)
SD626 Extended SRAM
cassette capacity
identification
information
Capacity identification information
of the Extended SRAM cassette
Capacity identification information of the Extended SRAM
cassette is stored.
Unmounted: 0, 1M: 1, 2M: 2, 4M: 3, 8M: 4, 16M: 5
S (Initial)
SD629 Program memory write
(transfer) status
Write (transfer) status display
(percent)
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.
S (Writing)
SD630 Program memory write
count index
Index of the number of write
operations up to now
• 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.
S (Writing)
SD631
SD633 Data memory write
(transfer) status
Write (transfer) status display
(percent)
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.
*2
S (Writing)
SD634 Index for the number of
data memory write
operations
Index of the number of write
operations up to now
• 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.
S (Writing)
SD635
No. Name Data stored Details Set by (setting
timing)