1 FUNCTIONS
1.3 Coincidence Output Function
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Coincidence detection interrupt function
This function outputs an interrupt request to the CPU module and starts an interrupt program when the present counter value
matches with the preset coincidence output point setting value.
For details on the interrupt program, refer to the following.
MELSEC iQ-R CPU Module User's Manual (Application)
Interrupt factor
The high-speed counter module has interrupt factors of 4 points for each coincidence output point.
Setting interrupt pointers
Set interrupt pointers in the parameter settings. For details on the setting method, refer to the following.
Page 42 Interrupt Setting
• A coincidence detection interrupt occurs on the rising edge of the counter value coincidence signal (When
the signal is turned off and on). Therefore, the next interrupt will not be requested unless the coincidence
signal is reset and the counter value coincidence signal is turned off.
Interrupt factor
Turning on CH1 Counter value coincident (point No.1) (X2)
Turning on CH1 Counter value coincident (point No.2) (X6)
Turning on CH2 Counter value coincident (point No.1) (X9)
Turning on CH2 Counter value coincident (point No.2) (XD)
Interrupt program execution timing
I/O signals
Interrupt request
Interrupt request clear
Interrupt program
Internal
processing of
CPU module
CH1 Counter value coincident (point No.1) (X2)
CH1 Counter value coincident (point No.2) (X6)
CH1 Coincidence signal No.1 reset command (Y0)
CH1 Coincidence signal No.2 reset command (Y7)
Program in CPU module
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