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326
Interrupt Functions
Section 6-1
MSKS(690) Operands
Note
*Input interrupts 4 and 5 are not supported by CPU Units with 14 I/O Points.
Writing the Interrupt
Task’s Program
Create programs for interrupt tasks 140 to 145, which are executed by the cor-
responding input interrupt. Always put an END(001) instruction at the last
address of the program.
Input Interrupt
Settings and
Operation
This example shows how to execute interrupt task 141 when 200 up-differenti-
ated pulses have been counted at input CIO 0.05. (The counter is an incre-
menting counter.)
Settings
1,2,3...
1.
Connect an input device to input 0.05.
2.
Use the CX-Programmer to set input 0.05 as an input interrupt in the PLC
Setup.
3.
Use the CX-Programmer to create the program to use for interrupt pro-
cessing and allocate the program to interrupt task 141.
4.
Use the CX-Programmer to set a high-speed counter SV of 00C8 hex (200
decimal) in A533.
5.
Use the CX-Programmer to write MSKS(690) in the program.
Operation
When execution condition W0.00 goes ON, MSKS(690) is executed to enable
operation of the input interrupt in counter mode.
Input interrupt
number
Interrupt
task
number
1. Up-differentiation or
Down-differentiation
2. Enabling/Disabling the
input interrupt
N
S
N
S
Input
interrupt
number
Count
trigger
Input
interrupt
number
Enable/
Disable
Input interrupt 0
140
110 (or 10)
#0: Up-dif-
ferentiated
pulses
#1: Down-
differenti-
ated pulses
100 (or 6)
#2: Start count-
ing down (dec-
rementing) and
enable inter-
rupts
#3: Start count-
ing up (incre-
menting) and
enable inter-
rupts
Input interrupt 1
141
111 (or 11)
101 (or 7)
Input interrupt 2
142
112 (or 12)
102 (or 8)
Input interrupt 3
143
113 (or 13)
103 (or 9)
Input interrupt 4*
144*
114
104
Input interrupt 5*
145*
115
105
MSKS(690)
111
#0
MSKS(690)
111
#3
W0.00
(Execution condition)
Specifies input interrupt 1.
Specifies up-differentiated pulses.
Specifies input interrupt 1.
Specifies an incrementing counter,
starts counting, and enables the input
interrupt.
Summary of Contents for CP1L - 12-2007
Page 3: ...iv...
Page 9: ...x...
Page 13: ...xiv TABLE OF CONTENTS...
Page 21: ...xxii...
Page 33: ...xxxiv Conformance to EC Directives 6...
Page 65: ...32 Function Blocks Section 1 5...
Page 428: ...395 Clock Section 6 9...
Page 429: ...396 Clock Section 6 9...
Page 523: ...488 Troubleshooting Unit Errors Section 9 4...
Page 531: ...496 Replacing User serviceable Parts Section 10 2...
Page 563: ...528 Auxiliary Area Allocations by Function Appendix C...
Page 611: ...576 Auxiliary Area Allocations by Address Appendix D...
Page 638: ...603 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 639: ...604 Connections to Serial Communications Option Boards Appendix F...
Page 669: ...634 Index...
Page 671: ...636 Revision History...