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(c) Using only a specific SI No.
• Setting in the intelligent function module interrupt pointer setting in the parameters
Interrupt factors are used starting from the start SI No. by the number of interrupt pointers set in the
"Intelligent Function Module Interrupt Pointer Setting" dialog box.
For example, when "1" is set for "Start SI No." and "2" is set for "Interrupt Pointer Count", only SI1 and SI2
are used.
When these settings are not configured, the interrupt function will not be used.
• Using the IMASK instruction
Using the IMASK instruction allows enabling or disabling interrupt program execution (interrupt mask) for
each interrupt pointer.
For details on the IMASK instruction, refer to the following.
MELSEC-Q/L Programming Manual (Common Instruction)
A coincidence detection interrupt occurs on the rising edge of the counter value coincidence signal (off to on).
Therefore, the next interrupt will not be requested unless the coincidence signal is reset and the counter value coincidence
signal is turned off.