Mitsubishi Electric Q01UCPU User Manual page 243

(c) Operation when "Specify service process execution counts." is selected
• Operation when 1 time is set
Program execution
END processing
Program execution
END processing
Program execution
END processing
• Operation when 2 times is set
Program execution
END processing
Program execution
END processing
● When several devices are connected to one CPU module, each device requests service processing. When the CPU
module receives requests from several devices simultaneously, a single END processing can accept several requests
simultaneously if the service processing count is set to the number of connected devices. This improves response
performance. (Note that the scan time increases by the service processing time.)
● If no request data exists when setting the service processing count, END processing speeds up by the request
processing time. (The CPU module does not wait for requests.)
Request 1
Regardless of request data size, one request
is processed at one END processing.
Request 2
Even if the program execution time are the same,
the scan time depends on service processing time.
Request 3
Request 1
Regardless of request data size,
Request 2 two requests are processed at
one END processing.
Request 3
Request 4
CHAPTER 3 FUNCTIONS
Programming tool
Programming tool
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