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202
Interrupt Functions
Section 5-1
4.
Use CTBL(882) to start the comparison operation with high-speed counter
0 and interrupt task 10.
5.
Operation
When execution condition W0.00 goes ON, the comparison starts with
high-speed counter 0.
When the PV of high speed counter 0 reaches 30,000, cyclic task process-
ing is interrupted, and interrupt task 10 is processed. When interrupt task
10 processing is completed, processing of the interrupted cyclic task re-
sumes.
Example 2: High-speed
Counter (Ring Mode)
In this example, high-speed counter 1 operates in circular (ring) mode and
starts interrupt task 12 when the PV is between 25,000 (0000 61A8 hex) and
25,500 (0000 639C hex).
The maximum ring count is set at 50,000 (0000 C350Hex).
1,2,3...
1.
Set high-speed counter 1 in the PLC Setup’s Built-in Input Tab.
2.
Set the range comparison table starting at word D20000. Even though
range 1 is the only range being used, all 40 words must still be dedicated
to the range comparison table.
W0.00
CTBL(882)
# 0000
# 0000
D100 00
Use high-speed counter 0.
First comparison table word
Register a target-value comparison table and
start comparison operation.
W0.00
CIO 0.01
0
Counting enabled
Cyclic task
processing
Interrupt task
10 processing
Processing
interrupted
Cyclic task
processing
Interrupt task
10 processing
Processing
interrupted
Cyclic task
processing
30,000 (7530 hex)
High-speed counter 0 PV
(in A270 and A271)
Item
Setting
High-speed counter 1
Use counter
Counting mode
Circular mode
Circular Max. Count
50,000
Reset method
Software reset (continue comparing)
Input Setting
Up/Down inputs
Word
Setting
Function
D20000
#61A8
Rightmost 4 digits of range 1 lower limit
Lower limit value:
25,000
D20001
#0000
Leftmost 4 digits of range 1 lower limit
D20002
#639C
Rightmost 4 digits of range 1 upper limit
Upper limit value:
25,500
D20003
#0000
Leftmost 4 digits of range 1 upper limit
Summary of Contents for CP1H-CPU - 05-2006
Page 2: ...CP1H X40D CP1H XA40D CP1H Y20DT D CP1H CPU Unit Operation Manual Revised May 2006...
Page 3: ...iv...
Page 11: ...xii TABLE OF CONTENTS...
Page 15: ...xvi...
Page 19: ...xx...
Page 31: ...xxxii Conformance to EC Directives 6...
Page 71: ...40 Function Blocks Section 1 5...
Page 133: ...102 Computing the Cycle Time Section 2 7...
Page 169: ...138 CPM1A Expansion I O Unit Wiring Section 3 6...
Page 411: ...380 Clock Section 6 8...
Page 519: ...488 Replacing User serviceable Parts Section 10 2...
Page 527: ...496 Standard Models Appendix A...
Page 535: ...504 Dimensions Diagrams Appendix B...
Page 628: ...597 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 629: ...598 Connections to Serial Communications Option Boards Appendix F...
Page 659: ...628 PLC Setup Appendix G...
Page 665: ...634 Index work words 159 write protection 370...
Page 667: ...636 Revision History...