Mitsubishi Q02CPU

6
FUNCTIONS
6.22 High Speed Interrupt Function
6.22.4 Restrictions
6
- 146
1
Overview
2
Performance Specification
3
Sequence Program Configuration and Execution Conditions
4
I/O Nunber Assignment
5
Memories and Files Handled by CPU Module
6
Functions
7
Communication with Intelligent Function Module
8
Parameters
(2) Items that are restriced on the high speed interrupt
Table6.41 Items that are completely disabled (Continued)
No. Item Restriction When Used
10
Online program correction,
online file batch-write
Online program correction is not available.
Online file batch-write is not available.
Since interrupt is disabled during online program correction, a high
speed interrupt start is delayed during that period and therefore high
speed interrupt is not available at preset cycle.
(The following time is taken.
• Max. 102 s for online program correction
• Max. 300ms for online file batch-write)
11
File registers having the
same file name as the
program name
File registers having the same file name as the
program name is not available.
Since interrupt is disabled when file registers having the same file name
as the program name are changed, high speed interrupt is not available
at preset cycle.(The following time is taken.
• Max. 410 s for standard RAM
• 400 s + 100 s number of program files for SRAM card)
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.)
Table6.42 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.)