Mitsubishi Q00CPU, User Manual

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6
- 166 6.22 High Speed Interrupt Function
6
FUNCTIONS
6.22 High Speed Interrupt Function Note71 Note72
When an interrupt program is created using the interrupt pointer I49, the QnHCPU can run
a program by making high speed, fixed-cycle interrupts at intervals of 0.2ms to 1.0ms.
And, the QnHCPU improves the I/O response by refreshing the I/O signals and intelligent
function module buffer memories in the parameter-set ranges before and after the
execution of the high speed interrupt program.
This enables accurate control such as precision position detection.
Note71
Note72
Figure 6.100 High speed interrupt timing chart
Basic
Process
Redundant
UD
Universal
Note6.69
Note6.69
Note6.69
Note6.69
High
Performance
Note6.70
The Basic model QCPU, Process CPU, Redundant CPU and Universal model QCPU do not
support the high-speed interrupt function.
Basic
Process Redundant
Note6.69 Note6.69
Note6.69
Note6.69
UD
Universal
The Q02CPU does not support the high speed interrupt function.
When using the high speed interrupt function with the QnHCPU, check the versions of the CPU
module and GX Developer. ( Appendix 4.2)
High
Performance
Note6.70
Main routine program
(Scan time 1ms)
I49 interrupt program
Main routine program
Waiting time
High speed interrupt start
Input (X)
Buffer memory read
I49 overhead
High speed interrupt
program execution
Buffer memory write
Output (Y)
High speed interrupt end
Step 0
Interrupt cycle interval: 0.2ms (parameter setting)
END