Omron FQM1-MMA21, FQM1-CM001, FQM1-MMP21 7-3-5Using Input Interrupts, Section, Counter Mode

	Input Interrupts		Section 7-3
Counter Mode
		Item	Specification
		Interrupt condition	Counter decremented from SV each time input contacts 0 to 3
			(CIO 0000.00 to CIO 0000.03) turn ON, OFF, or both and PV
			reaches 0.
			Note Set the interrupt condition in the System Setup.
		Interrupt task num-	CIO 0000.00 to CIO 0000.03: Interrupt tasks 000 to 003
		bers	(fixed)
		Counter operation	Decrementing pulse input
		Input method	Single phase
		Counting speed	2 kHz
		Counter value	0000 to FFFF hex
		Counter PV storage	Input interrupts 0 to 3 (CIO 0000.00 to CIO 0000.03):
			A524 to A527
		Counter SV storage	Input interrupts 0 to 3 (CIO 0000.00 to CIO 0000.03):
			A520 to A523

7-3-5 Using Input Interrupts

Input Interrupt Mode Procedure

1,2,3... 1. Determine which input interrupt number will be used.

2. Wire the input.

Input	Allocated input bit	Interrupt task number
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

3.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).

Note The default input setting is for a normal input.

4.Create the necessary ladder programming.

•Use the MSKS(690) instruction (SET INTERRUPT MASK) to enable the input as an interrupt input.

•Create the interrupt task program.

Interrupt 0

input

1

2

3

CIO 0000.00 Interrupt input 0

CIO 0000.01

CIO 0000.02

CIO 0000.03

Interrupt input 1

Interrupt input 2

Interrupt input 3

System Setup

Interrupt input settings

Ladder program

MSKS Interrupt control

Enable interrupt inputs

Interrupt generated.

Execute specified task.

END

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