Mitsubishi 00JCPU User Manual page 57

2) High Performance model QCPU, Process CPU, or Redundant CPU
• The CPU module stores the interrupt factors of I0 to I27 and I50 to I255 only once. Then, the CPU
module executes the interrupt program corresponding to the stored interrupt factor after completion of
current interrupt program execution.
As for the I28 to I31 and fixed scan execution type programs, the CPU module stores all interrupt
factors. Then, the CPU module executes the interrupt program corresponding to the stored interrupt
factor after completion of current interrupt program execution.
• The interrupt factors of I32 to I41 and I49 are discarded.
(e) When an interrupt factor occurs during link refresh
The link refresh is suspended and an interrupt program is executed.
Even if the Block data assurance per station setting is enabled in the CC-Link IE Controller Network or
MELSECNET/H network, this setting does not work when a device set as a refresh target is used in the
interrupt program.
In the interrupt program, do not use any refresh target device.
Interrupt factor
Interrupt program
execution
Link refresh execution
Figure 2.15 When an interrupt factor occurs during link refresh
Remark
For the Block data assurance per station setting, refer to the following.
Manual for each network module
(f) Interrupt during END processing
When the constant scan function is used and an interrupt factor occurs during the waiting time in END
processing, an interrupt program corresponding to the interrupt factor is executed.
(g) When an interrupt factor occurs during access to another module
When an interrupt factor occurs during access to another module (during service processing or instruction
processing), the interrupt program becomes standby status until the service processing or the instruction in
execution is completed.
To shorten the wait time of the interrupt, reduce the amount of data that access to other modules.
10ms 10ms
CHAPTER2 SEQUENCE PROGRAMS
10ms 10ms
Link refresh is suspended and
interrupt program is executed.
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