6
FUNCTIONS
6.13 Execution Time Measurement
6.13.1 Program list monitor
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U Mo
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Fun
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(a) Total Scan Time
Note34
The monitor time set in WDT(the watchdog timer) of "PLC RAS" tab screen in the
(PLC) "Parameter" dialog box and total scan time for each program type are
displayed.
1) Monitor Time
Indicates the monitor time of each program.
If the scan time exceeds this time, the CPU module displays the watchdog
timer error.
2) Sum of Scan Time
The total time in each item stated in "Scan Time Details for Scan Execution"
are displayed.
"Constant" indicates the constant scan waiting time when the setting is made
for constant scan.
(b) Scan execution part, detailed scan time
The details of the scan time are displayed.
1) Program
The total execution time of the scan execution type program is displayed.
2) END operation time
The END operation time is displayed.
3) Low speed program
Note35
This indicates the total execution time of a low speed execution type program
when making the setting for the execution time of a low speed execution type
program or constant scan time.
4) Constant waiting
The constant scan waiting time is displayed when setting the constant scan
time. However, when the low speed execution type program execution time is
set as well, this value is 0.000 ms.
Note34
Note35
Basic
Universal
UD
Note6.33
Redundant
In the case of the Basic model QCPU, only the monitor time of the scan execution type program
can be displayed. In the case of the Redundant CPU and Universal model QCPU does, the
monitor time of the low speed execution type program cannot be displayed.
Basic
Redundant
Universal
UD
Basic
Redundant
Note6.34
Universal
UD
In the case of the Basic model QCPU, Redundant CPU and Universal model QCPU, the item for
low speed program cannot be displayed.
Basic
Redundant
Universal
UD