Mitsubishi Electric MELSEC iQ-R Series User Manual page 36

Precautions
• When 'Condition target setting [n]' (Un\G728 to Un\G743) is Invalid (0), an interrupt request is not sent to the CPU module.
• If an interrupt factor occurs when 'Interrupt factor mask [n]' (Un\G632 to Un\G647) is Mask (Interrupt unused) (0), an
interrupt request is not sent to the CPU module. However, 'Interrupt factor detection flag [n]' (Un\G600 to Un\G615) is
changed to Interrupt factor (1).
• To reset the interrupt factor, specify Reset request (1) until 'Interrupt factor detection flag [n]' (Un\G600 to Un\G615)
changes to No interrupt factor (0).
• Resetting interrupt factors is executed only when 'Interrupt factor reset request [n]' (Un\G664 to Un\G679) changes from No
reset request (0) to Reset request (1).
• Multiple interrupt pointers can share the same setting of 'Condition target setting [n]' (Un\G728 to Un\G743). When multiple
interrupt pointers have shared the same setting of 'Condition target setting [n]' (Un\G728 to Un\G743) and interrupts occur,
interrupt programs are executed in order of priority of the interrupt pointers. For the priority of the interrupt pointers, refer to
the following.
 MELSEC iQ-R CPU Module User's Manual (Application)
• When multiple interrupt factors occur at the same time, the CPU module executes multiple interrupt programs at the same
time. When it will take a long time for all interrupt programs to finish executing, the CPU module judges that the programs
cannot be normally completed with the scan monitoring function, and a CPU error may occur. When a CPU error occurs,
refer to the following.
 MELSEC iQ-R CPU Module User's Manual (Application)
1 FUNCTIONS
34
1.9 Interrupt Function