Mitsubishi Q00JCPU User Manual page 158

3
SEQUENCE PROGRAM CONFIGURATION AND
EXECUTION CONDITIONS
(2) Each program flow of CPU module
Redundant
Universal
UD
Note3.33 Note3.33
Universal
Redundant
UD
Note3.33
Note3.33
Note31
Redundant
Universal
UD
Note3.33
Note3.33
3
- 60 3.3 Settings for Creation and Execution of Multiple Sequence Programs
3.3.6 Execution type setting and example of type changing
Figure 3.54 shows each program flow in the case where the PLC is powered ON or
the CPU module is switched from STOP to RUN.
Note3.33
Power supply OFF
STOP RUN
Initial execution
type program
Low speed
execution type
program
END processing
Scan execution
type program
POINT
Use the initial execution type program, low speed execution type program
stand-by type program and fixed scan execution type program as
necessary.Note31
The low speed execution type program is not available for the Redundant CPU and Universal
model QCPU.
ON/
Fixed scan
execution type
program
Stand-by type
program
Figure 3.54 Each program flow
Executed only once at
power supply OFF
ON/
STOP RUN.
Executed only when
"constant scan" or "low
speed program execution
time" has been set.
Executed at specified time
intervals.
Executed only when
execution request is
issued.
Program execution flow
Subroutine or interrupt
program execution
by calling
Note3.33
,