3
SEQUENCE PROGRAM CONFIGURATION AND
EXECUTION CONDITIONS
3.1 Sequence Program
3.1.3 Interrupt programs
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Func
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(e) When interrupt/fixed scan execution type program is executed for execution
time measurement, etc.
When an interrupt/fixed scan execution type program
measure the scan time or execution time using special registers, the time for the
program is added to the measured time.
Note13
The values stored into the special registers and the monitor values (measured
times) of GX Developer shown below increase when the program is executed.
1) Basic model QCPU
• Special registers
SD520, SD521 : Current scan time
SD524, SD525 : Minimum scan time
SD526, SD527 : Maximum scan time
SD540, SD541 : END processing time
SD542, SD543 : Constant scan wait time
SD548, SD549 : Scan execution type program execution time
• Monitor values of GX Developer
Scan time measurement
Constant scan
Note13
Basic
Note3.13
The fixed scan execution type programs are not available for the Basic model QCPU.
Basic