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(4) 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.
(a) Interrupt factors (SI)
One intelligent function module can have interrupt factors (SI) up to 16 points.
The high-speed counter module has interrupt factors of 4 points for each coincidence output point as shown
below.
SI No. Interrupt factor
0
Channel 1: Coincidence detection of coincidence output
point No.1
1
Channel 1: Coincidence detection of coincidence output
point No.2
2
Channel 2: Coincidence detection of coincidence output
point No.1
3
Channel 2: Coincidence detection of coincidence output
point No.2
4 to 15 Reserved
Interrupt program execution timing
I/O signals
Interrupt request
Interrupt request clear
Interrupt program
Internal
processing
of
CPU module
CH Counter value coincidence (point No.1) (X2, X9)
CH Counter value coincidence (point No.2) (X6, XD)
CH Coincidence signal No.1 reset command (Y0, Y8)
CH Coincidence signal No.2 reset command (Y7, YF)
Program in CPU module