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Set by
(When set)
U (END)
New
S (Status
change)
New
Set by
(When set)
• Always ON
S(Every END
processing)
M9036
• Always OFF
S(Every END
processing)
M9037
S(Every END
processing)
M9038
S(Every END
processing)
M9039
S(Every END
processing)
New
S(Every END
processing)
New
S (Status
change)
New
Meaning
Explanation
• Asynchronous mode
Mode in which the operation of the low speed execution
type program is performed continuously within the excess
Operation mode for low OFF: Asynchronous
time.
SM330 speed execution type
mode
• Synchronous mode
program
ON: Synchronous mode Mode in which the operation of the low speed execution
type program is not performed continuously and operation
is performed from the next scan even if there is excess
time.
• The status of the intelligent function module access
instruction executed immediately before is stored.
ON indicates completion
(This data is overwritten when the intelligent function
SM390 Access execution flag of intelligent function
module access
module access instruction is executed again.)
• Used by the user in a program as a completion bit.
Corresponding CPU
Name
Corresponding
ACPU
M9
No.
Corresponding
ACPU
M9
Special Relay List (Continued)
QCPU
No.
Name
SM400 Always ON
SM401 Always OFF
Meaning
ON
OFF
ON
OFF
SM402
After RUN, ON for 1
scan only
ON
OFF
1 scan
SM403
OFF for 1 scan only
after RUN
ON
OFF
1 scan
ON
OFF
1 scan
ON
OFF
1 scan
ON for 1 scan only after
SM404 low speed execution
type program RUN
OFF for 1 scan only
after low speed
SM405
execution type program
RUN
SM409 0.01 second clock
SM410 0.1 second clock
SM411 0.2 second clock
SM412 1 second clock
SM413 2 second clock
SM414 2n second clock
SM415 2n (ms) clock
SM420
SM421
SM422
SM423
SM424
SM430
SM431
SM432
SM433
SM434
User timing clock No. 0
User timing clock No. 1
User timing clock No. 2
User timing clock No. 3
User timing clock No. 4
User timing clock No. 5
User timing clock No. 6
User timing clock No. 7
User timing clock No. 8
User timing clock No. 9
0.005 sec.
Explanation
• After RUN, ON for 1 scan only
• This connection can be used for scan execution type
programs only.
• After RUN, OFF for 1 scan only
• This connection can be used for scan execution type
programs only.
• After RUN, ON for 1 scan only
• This connection can be used for low speed execution type
programs only.
• After RUN, OFF for 1 scan only
• This connection can be used for low speed execution type
programs only.
• Repeatedly changes between ON and OFF at 5-ms
interval.
• When turned OFF or reset, goes from OFF to start.
0.005 sec.
0.05 sec.
0.05 sec.
S (Status
change)
n sec.
• Alternates between ON and OFF at intervals of seconds
specified in SD414.
S (Status
change)
n(ms)
• Alternates between ON and OFF at intervals of the time
(unit: ms) specified in SD415.
S (Status
change)
New
S (Every END
processing)
M9020
M9021
M9022
M9023
M9024
S (Every END
processing)
New
0.1 sec.
0.5 sec.
0.5 sec.
1 sec.
n(ms)
• Relay repeats ON/OFF switching at fixed scan intervals.
• When turned ON or reset, goes from OFF to start.
• The ON/OFF intervals are set with the DUTY instruction.
n2 scan
n2 scan
DUTY
n1 n2 SM420
n1 scan
• For use with SM420 to SM424 low speed programs
App - 54
M9031
M9032
M9033
1 sec.
n sec.
QCPU
M9030
• Repeatedly changes between ON and OFF at each
designated time interval.
• When turned OFF or reset, goes from OFF to start.
Note that the ON-OFF status changes when the
designated time has elapsed during the execution of the
program.)
0.1 sec.
Corresponding CPU
(3) System clocks/counters
M9034
format
change
QCPU