Appendix 3 Cpu Module Processing Time; Appendix 3 - Mitsubishi Electric Q01UCPU User Manual

Appendix 3

This chapter describes the CPU module processing time.
This section describes the scan time structures and CPU module processing time.
Appendix 3.1
A CPU module sequentially performs the following processing in the RUN status.
Scan time is the time required for all processing and executions to be performed.
STOP/PAUSE status
STOP/PAUSE
processing
*1 End of a program indicates the timing when the END, GOEND, FEND, or STOP instruction is executed.
466
CPU Module Processing Time
Scan time structure
Processing in the
RUN status
Program check
I/O refresh
Processing for the DUTY instruction in
END processing (no processing when
the DUTY instruction is not used)
Program execution
*1
End the program?
YES
Refresh
MELSECNET/H
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Intelligent function module
Calendar update, error clear
Device data latch processing
Service processing
Processing during the constant scan
waiting time (no processing when the
constant scan time is not set)
WDT reset, scan time calculation
Operating status check
RUN status
I/O refresh time
Page 467, Appendix 3.2 (1)
(
Instruction execution time in
END processing
Page 468, Appendix 3.2 (2)
(
Instruction execution time
Page 468, Appendix 3.2 (3)
(
NO
Refresh time
Page 470, Appendix 3.2 (4)
(
Function execution time in END
processing
Page 472, Appendix 3.2 (5)
(
Device data latch processing
Page 473, Appendix 3.2 (6)
(
Service processing time
Page 474, Appendix 3.2 (7)
(
Common processing time
Page 475, Appendix 3.2 (8)
(
)
)
)
)
Scan
time
)
)
)
)