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(a) Total Scan Time
The monitoring time set in "WDT (Watchdog timer) setting" of the PLC RAS tab of the PLC parameter dialog
box and total scan time for each program type during execution by the CPU module are displayed.
1) Monitor time
The monitoring time of each program is displayed.
If the scan time exceeds this time, the CPU module detects "WDT ERROR".
2) Sum of scan time
The total time of each item in "Scan execution part, detailed scan time" is displayed.
When constant scan time is set, the constant scan time is displayed.
(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 processing time is displayed.
3) Low speed program
• High Performance model QCPU and Process CPU
The total execution time of a low-speed execution type program, or when the constant scan time is set,
the total execution time of a low-speed execution type program and constant scan is displayed.
• Basic model QCPU and Redundant CPU
Since a low-speed execution type program is not used "0.000" is displayed.
4) Constant waiting
The constant scan waiting time is displayed when the constant scan time is set.
(c) Execution status of each program
The execution status of a program selected at the program tab of the PLC parameter dialog box is displayed.
1) Program
The program name is displayed in the order set in the PLC parameter dialog box.
2) Execution
The program type set in the PLC parameter dialog box is displayed.
3) Scan time
The actual scan time (current value) is displayed.
When a program is in stop (standby) status, the scan time is displayed as 0.000 ms.
4) Execute count
The number of execution times of programs before monitoring is displayed, setting the measurement start as
"0". The number of execution times is displayed up to 65535 and returns to 0 when the 65536 is measured.
The execution times is held even when the program is stopped.
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