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CHAPTER 4 FUNCTIONS
4
4.5 Interrupt Request to CPU Module
4.5 Interrupt Request to CPU Module
Interrupt conditions are checked every link scan, and if the conditions are met, an interrupt is requested to the CPU
module to start the interrupt program.
Set interrupt conditions in "Interrupt Settings" for each station. ( Page 225, Section 6.6)
● Interrupt program start of the own station can be instructed from another station.
● Since a part describing the start conditions in the sequence program is not needed, the number of steps and the
sequence scan time can be reduced.
To execute an interrupt program, "EI" (Enable Interrupt) must be executed in the main program.
Main routine
program
Interrupt
program
CPU module
CC-Link IE Controller Network module
Conditions
met
I50
FEND
END
IRET
Interrupt
condition check
Link device
(LB/LW/LX) change
Network status
(SB/SW) change
Data reception status
of specified channel
Channel 2
Channel 1
SEND
instruction
Channel 3
Channel 4
Channel 5
Channel 6
Channel 7
Channel 8
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