Omron FQM1-MMP21 Manual De Usuario

1.

Determine which input interrupt number will be used. 

2.

Determine the initial SV for the decrementing counter.

3.

Wire the input.

4.

Make the necessary System Setup settings.

• Set the Interrupt Input Settings (set whether an interrupt will be generated

when the input turns ON, OFF, or both).

The default input setting is for a normal input.

5.

Create the necessary ladder programming. 

• Use the MSKS(690) instruction (SET INTERRUPT MASK) to refresh the

counter’s SV in counter mode.

• Create the interrupt task program.

External interrupt input 0

CIO 0000.00

000

External interrupt input 1

CIO 0000.01

001

External interrupt input 2

CIO 0000.02

002

External interrupt input 3

CIO 0000.03

003

0

CIO 0000.00

1

CIO 0000.01

2

CIO 0000.02

3

CIO 0000.03

MSKS

Change SV (Decrementing)

Counter SV

A520

Counter 0

A521

Counter 1

A522

Counter 2

A523

Counter 3

(Auxiliary Area)

Interrupt input (counter mode)

END

See note.

Note:

Refresh PV (once each cycle)

Counter PV

Interrupt
input

Counter 0, 1 kHz

Interrupt control

Refresh PV
(Decrementing)

Ladder program

Interrupt input
settings

System Setup

Interrupt generated.

Execute specified task.

Counter 1, 1 kHz

Counter 2, 1 kHz

Counter 3, 1 kHz

A524

Counter 0

A525

Counter 1

A526

Counter 2

A527

Counter 3

(Auxiliary Area)

Interrupt used only when
the counter counts out.