Omron FQM1-MMA21 User Manual
143
Input Interrupts
Section 7-3
Counter Mode
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.
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.
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.
(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-
bers
bers
CIO 0000.00 to CIO 0000.03: Interrupt tasks 000 to 003
(fixed)
(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
A524 to A527
Counter SV storage
Input interrupts 0 to 3 (CIO 0000.00 to CIO 0000.03):
A520 to A523
A520 to A523
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
Interrupt
input
input
0
CIO 0000.00
1
CIO 0000.01
2
CIO 0000.02
3
CIO 0000.03
Interrupt input 0
MSKS
Interrupt control
Enable interrupt inputs
Ladder program
Interrupt input
settings
settings
System Setup
Interrupt generated.
Execute specified task.
END
Interrupt input 1
Interrupt input 2
Interrupt input 3