3
SEQUENCE PROGRAM CONFIGURATION AND
EXECUTION CONDITIONS
3.1 Sequence Program
3.1.3 Interrupt programs
3
- 18
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) Disable interrupt with DI instruction
Disable the instructions that may cause inconvenience for the main routine
program with the DI instruction.
During access to the device of the corresponding argument of the instruction,
however, the interrupt program will not be inserted and therefore data
inconsistency will not occur in argument units.
Note3.11
Note11
(e) When interrupt occurs during network refresh
When an interrupt occurs during network refresh, network refresh is suspended
and an interrupt program is executed.
Even if the cyclic data block has been guaranteed for each station in the
MELSECNET/H network system, it is not available when the device set as a
refresh target is used in the interrupt program.
In the interrupt program, do not use the device set as the network refresh target.
Remark
Refer to the following manual for the block guarantee of cyclic data per station.
Q Corresponding MELSECNET/H Network System Reference Manual
(f) Interrupt during END processing
When an interrupt factor occurs during constant scan execution and during the
wait time in the END processing, the interrupt program corresponding to the
interrupt factor is executed.
Note11s
Diagram 3.15 When interrupt occurs during network refresh
Basic
Note3.11
When using the Basic model QCPU, data inconsistency may be occurred in argument unit.
Basic
Note3.11
10ms 10ms 10ms 10ms
Interrupt program
execution
Network refresh
execution
Network refresh is suspended and
interrupt program is executed.
Interrupt factor
To Next Page
Loading...
