6
FUNCTIONS
6.13 Execution Time Measurement
6.13.3 Scan time measurement
6 - 99
1
Overview
2
Performance
Specification
3
Sequence Program
Configuration and
Execution Conditions
4
I/O Nunber Assignment
5
Memories and Files
Handled by CPU Module
6
Functions
7
Communication using
built-in Ethernet ports of
CPU module
8
Communication with
Intelligent Function
Module
6.13.3 Scan time measurement
(1) Definition of Scan Time Measurement
This function displays the set program interval processing time.Note41Note42
The time for the subroutines and interrupt program can be measured as well.
(2) Scan time measurement range designation
To specify a scan time measurement range, follow either of the following two steps:
• Make the setting on the "Ladder monitor" window.
• Make the setting on the Scan time measurement screen.
(3) When subroutine program call instruction exists
The time includes the time required for processing subroutines, when the subroutine
CALL instruction is within the range of scan time measurement.
(4) When interrupt programs/fixed scan execution type programs are
executed within the scan time measurement range
If interrupts for executing interrupt programs and/or fixed scan execution type
programs occur within the scan time measurement range, the execution time for
those programs will be added.
Note41
Note42
Figure 6.65 When subroutine program is included in measurement range
Basic
Note6.40
Universal
UD
Note6.41
The Basic model QCPU does not support the scan time measurement.
Basic
Note6.40
When using the Scan time measurement in the Universal model QCPU, check the versions of
CPU module and GX Developer. ( Appendix 4.5)
Universal
UD
Note6.41
Main
program
Subroutine
program
Measurement range
Measurement range
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