Mitsubishi QCPU (Q Mode), Руководство пользователя

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MELSEC-Q
7 FUNCTION
No. Item Restriction When Used
12 Local devices Local devices are not available.
Since interrupt is disabled when local devices are
changed, high speed interrupt is not available at preset
cycle.
(The following time is taken.
• 390
s 170 s n for standard RAM
• 390 s 950 s n for SRAM card
n: number of program files)
13
Command of
intelligent function
module that
accesses CPU
module
Issue of CPU access command from
intelligent function module that accesses
CPU module, e.g. QJ71C24 or QJ71E71,
is not available.
Since interrupt is disabled at the time of CPU access
command issue, a high speed interrupt start is delayed
during that period and high speed interrupt is not
available at preset cycle.
N points read/write: (0.07
N 34) s
N points random read/write: (0.07 N 101) s
14
Monitor via other
station
Monitor via MELSECNET/H, QJ71C24 or
other intelligent function module is not
available during host monitoring.
If host monitor request and intelligent function module-
relayed monitor request overlap, interrupt disable
processing time increases. Therefore, a high speed
interrupt start is delayed (102
s) during that period and
high speed interrupt is not available at preset cycle.
15 Interrupt counter
Interrupt counter corresponding to interrupt
pointer I49 is not available.
If there is interrupt counter setting, setting for I49 is
ignored and high speed interrupt I49 is executed
properly.
(For other interrupt pointers, interrupt programs are not
available and interrupt counters are executed.)
(2) Items that are disabled only within high speed interrupt
No. Item Restriction When Used
1 Device comment
In high speed interrupt program, device
comment that is the same as program
name is not saved/restored.
Device comment in high speed interrupt program is
overwritten.
2 Index register
In high speed interrupt sequence, index
register is not saved/restored. Index register in high speed interrupt program is
overwritten.
3
Bus access flag
SM390 In high speed interrupt program, bus
access flag SM390 is not saved/restored. SM390 value in high speed interrupt program is
overwritten.
4 Forced ON/OFF
High speed X/Y refresh area cannot be
turned ON/OFF forcibly.
In high speed interrupt, forced ON/OFF is not executed
and is ignored.
(Does not result in time-out error.)
5
Detailed condition
monitor Cannot be specified within high speed
interrupt program. Is not executed properly.
(Does not result in time-out error.)
6
Execution time
measurement Cannot be specified within high speed
interrupt program. Is not executed and is ignored.
(Does not result in time-out error.)
(3) Items that hold high speed interrupt by interrupt disable
No. Item Restriction
1 Instruction Interrupt is disabled during instruction execution.
2 Link refresh
Interrupt is disabled during refresh (bus access).
For MELSECNET/H, CC-Link or intelligent function module refresh, waiting time is max. 37.5
s
when modules are mounted on main base or max. 40 s when they are mounted on extension base.
3
Multiple program
execution
When multiple programs are run, interrupt is disabled during program switching. Waiting time is
30
s.
When high speed interrupt function has been set, the recommended number of programs is 1.
4 Monitor
For ladder monitor, device batch-monitor or device entry monitor, waiting time is as follows.
(0.096
number of device points 20) s
5 AC DOWN Waiting time is max. 20ms for high speed interrupt start.