Mitsubishi MELSEC Q Series Programming Manual page 1254

Special
ACPU
Register
Special
after
Register Modification
Conversion
D9016 SD1016
D9017 SD1017 SD524
D9018 SD1018 SD520
D9019 SD1019 SD526
D9020 SD1020
D9021 SD1021
D9022 SD1022 SD412
App-246
Special
Register for Name
Program
×
number
Scan time
× Constant scan
- Scan time
Count in units
of 1s.
Meaning
0: Main
program
(ROM)
1: Main
program
(RAM)
2: Subprogram
1
(RAM)
3: Subprogram
2
(RAM)
4: Subprogram
3
(RAM)
5: Subprogram
1
(ROM)
This register stores any of the values from 0 to B, indicating
6: Subprogram
which program is currently running.
2
(ROM)
7: Subprogram
3
(ROM)
8: Main
program
2
(E PROM)
9: Subprogram
1
2
(E PROM)
A: Subprogram
2
2
(E PROM)
B: Subprogram
3
2
(E PROM)
If a scan time value is smaller than the value in SD1017, the
Minimum scan
SD1017 value is updated in the END processing.
time (10 ms
Therefore the minimum value of scan time is stored in
units)
SD1017.
Scan time
This register stores a scan time in every END processing.
(10 ms units)
If a scan time value is greater than the value in SD1019, the
Maximum scan
SD1019 value is updated in END processing.
time (10 ms
Therefore the maximum value of scan time is stored in
units)
SD1019.
This register stores an interval value in units of 10ms to run a
Constant scan program at regular intervals.
time (User sets •0: No constant scan function
in 10 ms units) •1 to 200: Constant scan function available (executing at a
interval of setting value × 10ms)
Scan time
This register stores scan time in every END processing.
(1 ms units)
• The value is incremented by one every second after RUN.
Count in units
• The counter starts the routine: counts up from 0 to 32767,
of 1s.
then counts down to -32768 and then again counts up to 0.
Details
Corres-
ponding
CPU
-
Qn(H)
QnPH
*1
QnU
LCPU
-
Qn(H)
QnPH
*1
QnU
LCPU