Mitsubishi Q00JCPU User Manual page 491

6
FUNCTIONS
(3) Operations for each service processing setting
Operation details for each service processing setting is described below.
(a) Operation details when "Execute the process as the scan time proceeds." is
POINT
POINT
selected
1) Operation when "10%" is set
Program execution
1ms
END processing
Request 1
Program execution
1ms
END processing
Request 2-1
Program execution
1.2ms
Request 2-2
END processing
Request 3
Figure 6.111 Parameter setting screen
If no request data for service processing exists, END processing speeds up by the
request processing time. (CPU module does not wait for requests.)
2) Operation at the time of setting constant scan
The calculation of the service processing time is a calculation of the
percentage toward the time excluding the wait time of the constant scan from
the scan time, not a calculation of the percentage toward the scan time.
[Example]
When setting Percentage of scan time = "50%"
0%
Program execution
Figure 6.112 Operation at the time of setting constant scan
When setting the constant scan, select [Execute it while waiting for constant scan
setting.] to execute the service processing efficiently. (
When the time required for processing one request
exceeds 10% of one scan time, the service processing is
suspended and the request is processed continuously at
END processing of next scan.
The service processing time varies depending on the
scan time (program execution time)
50% 100%
END processing
Program execution
Service processing
time
Scan time (constant scan setting)
6.25 Service Processing
6.25.2 Service processing
GX Developer
Wait time
Section 6.25.2(3)(d))
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