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(4) Scan information
Number
Name
Meaning
Execution
Program No. in
SD500
program No.
execution
Low speed
Low speed
execution type
SD510
excution type
program No. in
program No.
execution
Current scan time
SD520
(in 1 ms units)
Current scan
time
Current scan time
SD521
(in 100 s units)
Initial scan time
SD522
(in 1 ms units)
Initial scan time
Initial scan time
SD523
(in 100 s units)
Minimum scan
SD524
time (in 1 ms
units)
Minimum scan
time
Minimum scan
SD525
time (in 100 s
units)
Maximum scan
SD526
time (in 1 ms
units)
Maximum scan
time
Maximum scan
SD527
time (in 100 s
units)
Current scan time
Current scan
SD528
(in 1 ms units)
time for low
speed execution
Current scan time
SD529
type programs
(in 100 s units)
Minimum scan
SD532
time (in 1 ms
Minimum scan
units)
time for low
speed execution
Minimum scan
type programs
SD533
time (in 100 s
units)
Maximum scan
SD534
time (in 1 ms
Maximum scan
units)
time for low
speed execution
Maximum scan
type programs
SD535
time (in 100 s
units)
END processing
SD540
time (in 1 ms
units)
END processing
time
END processing
SD541
time (in 100 s
units)
Table12.22 Special register
Explanation
• Program number of program currently being executed is stored as BIN
value.
• Program number of low speed excution type program No. currently
being executed is stored as BIN value.
• Enabled only when SM510 is ON.
• The current scan time is stored into SD520 and SD521.
(Measurement is made in 100 s units. (For the Universal model QCPU,
in 1 s units.))
SD520: Stores the ms place. (Storage range: 0 to 65535)
SD521: Stores the s place. (Storage range: 0 to 900 (For the
Universal model QCPU, storage range is 0 to 999))
(Example) When the current scan time is 23.6ms, the following values are
stored.
SD520 = 23
SD521 = 600
• Stores the scan time of an initial execution type program into SD522 and
SD523.
(Measurement is made in 100 s units. (For the Universal model QCPU,
in 1 s units.))
SD522: Stores the ms place. (Storage range: 0 to 65535)
SD523: Stores the s place. (Storage range: 0 to 900 (For the Universal
model QCPU, storage range is 0 to 999))
• Stores the minimum value of the scan time except that of an initial
execution type program into SD524 and SD525. (Measurement is made
in 100 s units. (For the Universal model QCPU, in 1 s units.))
SD524: Stores the ms place. (Storage range: 0 to 65535)
SD525: Stores the s place. (Storage range: 0 to 900 (For the Universal
model QCPU, storage range is 0 to 999))
• Stores the maximum value of the scan time except that of an initial
execution type program into SD526 and SD527. (Measurement is made
in 100 s units. (For the Universal model QCPU, in 1 s units.))
SD526: Stores the ms place. (Storage range: 0 to 65535)
SD527: Stores the s place. (Storage range: 0 to 900 (For the Universal
model QCPU, storage range is 0 to 999))
• Stores the current scan time of a low speed execution type program into
SD528 and SD529.
(Measurement is made in 100 s units.)
SD528: Stores the ms place. (Storage range: 0 to 65535)
SD529: Stores the s place. (Storage range: 0 to 900)
• Stores the minimum value of the scan time of a low speed execution
type program into SD532 and SD533.
(Measurement is made in 100 s units.)
SD532: Stores the ms place. (Storage range: 0 to 65535)
SD533: Stores the s place. (Storage range: 0 to 900)
• Stores the maximum value of the scan time except that of the first scan
of a low speed execution type program into SD534 and SD535.
(Measurement is made in 100 s units.)
SD534: Stores the ms place. (Storage range: 0 to 65535)
SD535: Stores the s place. (Storage range: 0 to 900)
• Stores the time from the end of a scan execution type program to the
start of the next scan into SD540 and SD541.
(Measurement is made in 100 s units.(For the Universal model QCPU,
in 1 s units.))
SD540: Stores the ms place. (Storage range: 0 to 65535)
SD541: Stores the s place. (Storage range: 0 to 900) (Storage range: 0
to 900 (For the Universal model QCPU, storage range is 0 to 999))
CHAPTER12 PECIAL RELAY LIST AND SPECIAL REGISTER LIST
Set by
(When Set)
S (Status
change)
S (Every END
processing)
S (Every END
processing)
S (Every END
processing)
S (First END
processing)
S (Every END
processing)
S (Every END
processing)
S (Every END
processing)
S (Every END
processing)
S (Every END
processing)
S (Every END
processing)
S (Every END
processing)
Corres-
ponding
Corresponding
ACPU
CPU
D9
Qn(H)
QnPH
New
QnPRH
QnU
Qn(H)
New
QnPH
D9018
format
change
QCPU
New
New
D9017
Qn(H)
format
QnPH
change
QnPRH
QnU
New
D9019
format
change
New
New
New
Qn(H)
QnPH
New
Qn(H)
QnPH
New
QnPRH
QnU
12 - 50
1
2
3
12
6
7
8
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