10
- 65
10.6 Index Register(Z) / Standard Device Resister(Z)
10.6.4 Switching scan/low speed exec. to Interrupt/fixed scan exec.
10
DEVICE EXPLANATION
10.6.4 Switching scan/low speed exec. to Interrupt/fixed scan exec.
Note19
The CPU module performs the following processing when switching between a scan/
low speed execution type program and an interrupt/fixed scan execution type
program.
• Index register value is saved (protected)/restored.
• File register block No. is saved (protected)/restored.
(1) Save (protection)/restoration setting
For the index register, when not writing date to index registers check by using an
interrupt program/fixed scan execution type program, the "High speed execution"
check box in the "Interrupt program/Fixed scan program setting" section at the "PLC
system" tab screen in the "(PLC) Parameter" dialog box. This will switch between
programs quickly.
Note19
Figure 10.61 Interrupt program/fixed scan program setting
Basic model QCPU does not support the low speed execution type program and fixed scan exe-
cution type program.
Replace "scan/low speed execution type program" with "main routine program/sub-routine pro-
gram" and "interrupt/fixed scan execution type program" with "interrupt execution type program",
respectively, throughout this section.
Basic
Redundant CPU and Universal model QCPU does not support the low speed execution type pro-
gram.Replace "scan/low speed execution type program" with "scan execution type program"
throughout this section.
Redundant
Universal
UD
Basic
Note10.18
Redundant
Universal
UD
Note10.19 Note10.19
Содержание Q00CPU
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