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3.1 Sequence Program
3.1.3 Interrupt programs
3
SEQUENCE PROGRAM CONFIGURATION AND
EXECUTION CONDITIONS
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
(f) When interrupt occurs during link refresh
When an interrupt occurs during link refresh, link refresh is suspended and an
interrupt program is executed.
Even if the cyclic data block has been assured for each station in the CC-Link IE
controller network or 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 link refresh target.
Note11s
Figure 3.16 When interrupt occurs during link 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
Link refresh
execution
Link refresh is suspended and
interrupt program is executed.
Interrupt factor
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