Mitsubishi Q00JCPU User Manual page 468

6
FUNCTIONS
6.22.1 High speed interrupt program
Basic
Note6.71
The high speed interrupt program execution function is designed to run an interrupt
Process
program according to the setting of high speed interrupt pointer I49.
Note6.71
(1) Setting method
Redundant
Note6.71
Universal
UD
Note6.71
High
Performance
Note6.72
(2) Precautions
Note73
Redundant
Basic Process
Note6.71 Note6.71 Note6.71
Universal
UD
Note6.71
Note74
High
Performance
Note6.72
6
- 168 6.22 High Speed Interrupt Function
6.22.1 High speed interrupt program execution
Set the high speed interrupt pointer I49 at "High speed interrupt I49 fixed scan
interval" after choosing "PLC system" - "System interrupt settings" - "High speed
interrupt setting" on the PLC parameter screen.
(a) High speed interrupt while interrupt is disabled
The high speed interrupt program is only executed as interrupt enable.
Refer to Section 6.22.4 (3) for the items that delay high speed interrupt's start
from interrupt disable.
(b) When high speed interrupt is ignored
If the interrupt disable period continues longer than the set interrupt cycle interval,
high speed interrupt may be ignored.
High speed interrupt is ignored once when it occurs twice during interrupt disable.
The Basic model QCPU, Process CPU, Redundant CPU and Universal model QCPU do not
support the high speed interrupt program function.
The Q02CPU does not support the high speed interrupt program execution.
When using the high speed interrupt function with the QnHCPU, check the versions of the CPU
module and GX Developer. (
executionNote73Note74
Figure 6.101 High speed interrupt setting
Appendix 4.2)
Set within the range
0.2 to 1.0ms.