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MELSEC-Q
APPENDICES
Special Register List (Continued)
Number Name Meaning Explanation
Set by
(When set)
Corresponding
ACPU
D9
Corresponding
CPU
SD203
Operating
status of CPU
Operating
status of CPU
• This register stores the operating status of the remote I/O module in
the following bit pattern.
B15 B4 B3 B0
1
Empty
1
Operating status of remote I/O module Always 2: STOP
S (Always) New Remote
• This register stores the operating status of the CPU module in the
following bit pattern.
B15 B12B11 B8B7 B4B3 B0
2
1
S (Every
END
processing)
D9015 format
change
1
: Operating state of CPU 0 :RUN
1 :STEP-RUN (For the QnACPU
only)
2 :STOP
3 :PAUSE
2 : STOP/PAUSE cause
Note: Priority is earliest first
(For Universal model QCPU,
however, the latest cause for
operation status change is
stored.)
0 :RUN/STOP switch
(“RUN/STOP/RESET
switch” for Basic model QCPU
and Universal model QCPU)
1 :Remote contact
2 :Remote operation from GX
Developer or serial
communication modules
3 :Internal program instruction
4: Error
SD206
Device test
execution
type
0: No test
being
executed
1: During X
device test
2: During Y
device test
3: During X/Y
device test
• A value is stored in this register when inputs/outputs are forcibly
registered by GX Developer.
S
(Request)
New Rem
SD210 Clock data
Clock data
(year, month)
• This register stores the year (last two digits) and month in BCD as
shown below.
B15 B12B11 B8 B7 B4 B3 B0
Year Month
Example :
July 1993
9307
H
to
to
to to
S
(Request)/
U
D9025
Rem
SD211 Clock data
Clock data
(day, hour)
• This register stores the day and hour in BCD as shown below.
B15 B12B11 B8 B7 B4 B3 B0
Day Hour
Example :
31st, 10 a.m.
3110
H
to to to
to
D9026
SD212 Clock data
Clock data
(minute,
second)
• This register stores the minute and the second in BCD as shown
below.
Example :
B15
B12B11
B8 B7
B4
B3 B0
to
to
to
to
Minute
Second
35 min., 48 sec.
3548
H
D9027
SD213 Clock data
Clock data
(higher digits
of year, day
of week)
• This register stores the year (first two digits) and day of week in BCD
as shown below.
B15 B12B11 B8 B7 B4 B3 B0
to to
to
to
First two digits of year
(19 or 20)
Day of week
0
1
2
3
4
5
6
Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
Example :
Friday 1993,
1905
H
S
(Request)/
U
D9028
QCPU
Rem