Mitsubishi Electric melsec q00ujcpu User Manual page 532

Special
ACPU Special
Register
Special Register for
after
Register Modification
Conversion
D9016 SD1016
D9017 SD1017 SD524
D9018 SD1018 SD520
D9019 SD1019 SD526
D9020 SD1020
–
D9021 SD1021
D9022 SD1022 SD412
–
D9025 SD1025
–
D9026 SD1026
–
D9027 SD1027
*1: The relevant modules are as follows:
• The Universal model QCPU whose serial number (first five digits) is "10102" or later.
• Q00UJCPU, Q00UCPU, Q01UCPU
Table12.28 Special register
Name 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)
Program
6: Subprogram 2
number
(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)
Minimum scan time
Scan time
(10 ms units)
Scan time
Scan time
(10 ms units)
Maximum scan time
Scan time
(10 ms units)
Constant scan time
Constant scan (User sets in 10 ms
units)
Scan time
Scan time
(1 ms units)
1 second
Count in units of 1s.
counter
Clock data
Clock data
(year, month)
Clock data
Clock data
(day, hour)
Clock data
Clock data
(minute, second)
CHAPTER12 PECIAL RELAY LIST AND SPECIAL REGISTER LIST
Details
• Indicates which sequence program is run presently. One value of 0
to B is stored in BIN code.
• If scan time is smaller than the content of SD1017, the value is
newly stored at each END. Namely, the minimum value of scan
time is stored into SD1017 in BIN code.
• At every END, the scan time is stored in BIN code and always
rewritten.
• If scan time is larger than the content of SD1019, the value is newly
stored at each END. Namely, the maximum value of scan time is
stored into SD1019 in BIN code.
• Sets the interval between consecutive program starts in multiples
of 10 ms.
0 : No setting
1 to 200 : Set. Program is executed at intervals of (set
value) 10 ms.
• At every END, the scan time is stored in BIN code and always
rewritten.
• When the PC CPU starts running, it starts counting 1 every
second.
• It starts counting up from 0 to 32767, then down to -32768 and
then again up to 0. Counting repeats this routine.
• The year (last two digits) and month are stored as BCD code as
shown below.
b15 to b12 b11 to b8 b7 to b4 b3 to
Year Month
• The day and hour are stored as BCD code as shown below.
b15 to b12 b11 to b8 b7 to b4 b3 to
Day Hour
• The minute and second are stored as BCD code as shown below.
b15 to b12 b11 to b8 b7 to b4 b3 to
Minute
Second
Corresponding
CPU
Qn(H)
QnPH
Qn(H)
QnPH
*1
QnU
Qn(H)
QnPH
Example:
b0
1987, July
H8707
Qn(H)
QnPH
*1
QnU
Example:
b0
31st, 10 a.m.
H3110
Example:
b0
35 min, 48 sec.
H3548
12 - 66
1
2
3
12
6
7
8