Mitsubishi MELSEC Q Series Programming Manual page 1242

Number Name
Program Write
memory write (transfer)
SD681
(transfer) status display
status (percentage)
SD682
Program Write count
memory write index
SD683
count index up to present
Standard Write
ROM write (transfer)
SD686
(transfer) status display
status (percentage)
SD687
Standard Write count
ROM write index up to
SD688
count index present
App-234
Meaning
This register stores the progress of writing (transfer) to the
program memory (flash ROM) in percentage (0 to 100%).
(When a write (transfer) command is given, "0" is stored in this
register.)
This register stores the index value of write count of the
program memory (flash ROM)
binary. When the index value exceeds 100 thousand times,
"FLASH ROM ERROR" (error code: 1610) occurs. (The index
value will be counted even after it exceeds 100 thousand.)
*1 The write count does not equal to the index value. (Since the
maximum write count of the flash ROM has been increased
by the system, 1 is added about every two writing
operations.)
This register stores the progress of writing (transfer) to the
standard ROM (flash ROM) in percentage (0 to 100%). When a
write (transfer) command is given, "0" is stored in this register.
This register stores the index value of write count of the
standard ROM (flash ROM)
When the index value exceeds 100 thousand times, "FLASH
ROM ERROR" (error code: 1610) occurs. (The index value will
be counted even after it exceeds 100 thousand.)
*1 The write count does not equal to the index value. (Since the
maximum write count of the flash ROM has been increased
by the system, 1 is added to the index value when the total
write data size after the previous count-up reaches about 1M
byte.)
Explanation
*1
up to the present in 32-bit
*1
up to the present in 32-bit binary.
Corres-
ponding
Set by
ACPU
(When Set)
D9
S
New
(At write)
Corres-
ponding
CPU
QnU
LCPU