Справочник Пользователя для Mitsubishi Electronics QD64D2

5

5.3.4

Coincidence detection interrupt function

Use the coincidence detection interrupt function to request an interrupt to the 
programmable controller CPU when a coincidence is detected, and start up the interrupt 
program.

(a) Up to 16-point interrupt factors (SI) are allowed for a single MELSEC-Q series 

intelligent function module.
As shown in Table 5.9, the QD64D2 has 4-point interrupt factors (SI) for 
coincidence detection.

(b) It takes approximately 150 s from when the QD64D2 detects a coincidence until 

it requests an interrupt to the programmable controller CPU.

(c) Select [PLC parameter] - [PLC system] - [Intelligent function module setting] - 

[Interrupt pointer settings] to set the interrupt factors (SI) of the QD64D2 and 
interrupt pointers of the programmable controller CPU.

1) [PLC side] [Interrupt pointer start No.]

Set the start interrupt pointer number of the programmable controller CPU. 
Setting range: 50 to 255

0

Channel 1: Coincidence detection of coincidence output No.1 point setting or continuous 
comparison No.1 point m setting

1

Channel 1: Coincidence detection of coincidence output No.2 point setting or continuous 
comparison No.2 point m setting

2

Channel 2: Coincidence detection of coincidence output No.1 point setting or continuous 
comparison No.1 point m setting

3

Channel 2: Coincidence detection of coincidence output No.2 point setting or continuous 
comparison No.2 point m setting

4 to 15

Reserved

*1

Timing of interrupt signal generation

I/O signals

Counter value 

coincidence No.1 

(X02)

Coincidence signal 

No.1 reset command 

(Y01)

Internal processing

 of the programmable

 controller CPU

Interrupt request

Interrupt request clear

Program processing in the 

programmable controller CPU

Interrupt program processing

*1 The coincidence signal No.1 reset command (Y01) is only used for the coincidence output function. 

For the continuous comparison function, the counter value coincidence No.1 (X02) automatically 
turns OFF after elapsing the set time of the continuous comparison No.1 ON time setting (Un\G52).