Mitsubishi Q02CPU

6
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6.22 High Speed Interrupt Function
6.22.4 Restrictions
6
FUNCTIONS
6.22.4 RestrictionsNote64Note65
This section provides the cautions when executing the high speed interrupt function and
the restrictions.
Depending on the cautions, an WDT error may occur, or high speed interrupt may not be
executed at preset cycle intervals.
The items are classified into 4 types depending on the restriction level.
(1) Items that are completely disabled.
(2) Items that are restricted on the high speed interrupt.
(3) Items that have priority over the high speed interrupt when interrupt is disabled.
(4) Items other than (1) to (3)
The time taken to run an interrupt program once should not exceed the preset time of the
interrupt cycle interval. (Make sure the time required for an interrupt program once is
within the preset time of the interrupt cycle interval. Otherwise, high speed interrupt
operation cannot be guaranteed.)
(1) Items that are completely disabled
Note64
Note65
Table6.41 Items that are completely disabled
No. Item Restriction When Used
1CPU module
Only the CPU modules listed in Section 6.22 (1)
support the high speed interrupt function.
Parameter error is detected.
2 Base unit
QA1S6 B or QA6 B base unit is not
available.
Parameter error is detected.
3 Multiple CPU system Multiple CPU system is not available. Checked at parameter setting of GX Developer.
4 Instruction
PR/PRC, UDCNT1/2, PLSY, PWM, SPD,
PLOADP/PUNLOADP/PSWAPP instructions are
not available.
Any of the instructions indicated on the left is not available and error is
detected.
5 Instruction
Instruction that will take longer processing time
than high speed interrupt cycle is not available.
Since interrupt is disabled during instruction execution, high speed
interrupt is not available at preset cycle.
6 Programming unit Programming unit is not available.
Response to instruction search will be slow, or communication error
may occur on programming unit side.
7SFC
The following two SFC functions are not
available.
• SFC transition monitor check function using
SM90 to SM99, SD90 to SD99
• Fixed-time executed block execution function
Functions given on the left are not available and are ignored.
8 Sampling trace
Time-based sampling trace is not
available.(Sampling trace can be used every
scan or when detailed conditions are executed.)
Sampling trace is not available and is ignored.
(When trace read is performed, data may not be set.)
9
Interrupt program (I0 to I48,
I50 to I255), fixed scan
execution type program
Interrupt program (I0 to I48, I50 to I255) and
fixed scan execution type program is not
available.
Since multiple interrupts are disabled, high speed interrupt is not
available at preset cycle while any interrupt or fixed scan execution type
program is run.
Basic
Process
Redundant
Note6.63
Note6.63
Note6.63
High
Performance
Note6.64
Since the Basic model QCPU, Process CPU and Redundant CPU do not support the high speed
interrupt function, it is not necessary to be conscious of the description in this section.
Basic
Process
Redundant
Note6.63 Note6.63Note6.63
Since the Q02CPU does not support the high speed interrupt function, it is not necessary to be
conscious of the description in this section.
High
Performance
Note6.64