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CHAPTER6 FUNCTIONS
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6.13 Execution Time Measurement
6.13.3 Scan time measurement
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6.13.3 Scan time measurement Note1
(1) Definition
This function displays the processing time of set program section during ladder monitoring.
The time required for the subroutine and interrupt programs can be measured.
(2) Range specification of scan time measurement
There are following two types for specifying a scan time measurement range.
• Setting on the ladder monitor screen
• Setting on the scan time measurement screen
(3) When the subroutine program call instruction is in the measurement range
When the subroutine program call instruction (CALL) is in the range of scan time measurement, the scan time
includes the time required for processing a subroutine program.
(4) When interrupt programs/fixed scan execution type programs are executed in
the scan time measurement range
The execution time of interrupt programs and fixed scan execution type programs are added.
Note1
Figure 6.61 When subroutine program is in measurement range
Note6.6
Note6.6
When using the scan time measurement for the Q02UCPU, Q03UDCPU,Q04UDHCPU,Q06UDHCPU,Q13UDHCPU,
and Q26UDHCPU, check the versions of CPU module and GX Developer.( Appendix 2)
Universal
Main
program
Subroutine
program
Measurement range
Measurement range