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206
High-speed Counters
Section 5-2
Auxiliary Area Data
Allocation
Count values
Linear mode: 80000000 to 7FFFFFFF hex
Ring mode: 00000000 to Ring SV
(The Ring SV (Circular Max. Count) is set in the PLC Setup and the setting
range is 00000001 to FFFFFFFF hex.)
High-speed counter PV storage locations
High-speed counter 0: A271 (leftmost 4 digits) and A270 (rightmost 4 digits)
High-speed counter 1: A273 (leftmost 4 digits) and A272 (rightmost 4 digits)
High-speed counter 2: A317 (leftmost 4 digits) and A316 (rightmost 4 digits)
High-speed counter 3: A319 (leftmost 4 digits) and A318 (rightmost 4 digits)
Target value comparison interrupts or range comparison interrupts can be
executed based on these PVs.
Note The PVs are refreshed in the overseeing processes at the start of each
cycle. Use PRV(881) to read the most recent PVs.
Data format: 8 digit hexadecimal
Range in linear mode: 80000000 to 7FFFFFFF hex
Range in ring mode: 00000000 to Ring SV (Circular Max. Count)
Control
method
Target value comparison
Up to 48 target values and corresponding interrupt task numbers can be reg-
istered.
Range comparison
Up to 8 ranges can be registered, with a separate upper limit, lower limit, and
interrupt task number for each range.
Counter reset method
Select one of the following methods in the PLC Setup.
•Phase-Z + Software reset
The counter is reset when the phase-Z input goes ON while the Reset Bit is
ON.
•Software reset
The counter is reset when the Reset Bit goes ON.
(Set the counter reset method in the PLC Setup.)
Note Operation can be set to stop or continue the comparison operation
when the high-speed counter is reset.
Item
Specification
Function
High-speed counter number
0
1
2
3
PV storage words
Leftmost 4 digits
A271
A273
A317
A319
Rightmost 4 digits
A270
A272
A316
A318
Range Comparison Con-
dition Met Flags
Range 1 Comparison Condition Met Flag
A274.00
A275.00
A320.00
A321.00
Range 2 Comparison Condition Met Flag
A274.01
A275.01
A320.01
A321.01
Range 3 Comparison Condition Met Flag
A274.02
A275.02
A320.02
A321.02
Range 4 Comparison Condition Met Flag
A274.03
A275.03
A320.03
A321.03
Range 5 Comparison Condition Met Flag
A274.04
A275.04
A320.04
A321.04
Range 6 Comparison Condition Met Flag
A274.05
A275.05
A320.05
A321.05
Range 7 Comparison Condition Met Flag
A274.06
A275.06
A320.06
A321.06
Range 8 Comparison Condition Met Flag
A274.07
A275.07
A320.07
A321.07
Comparison In-progress
Flags
ON when a comparison operation is being exe-
cuted for the high-speed counter.
A274.08
A275.08
A320.08
A321.08
Overflow/Underflow Flags
ON when an overflow or underflow has
occurred in the high-speed counter’s PV.
(Used only when the counting mode is set to
Linear Mode.)
A274.09
A275.09
A320.09
A321.09
Count Direction Flags
0: Decrementing
1: Incrementing
A274.10
A275.10
A320.10
A321.10
Содержание CP1H-CPU - 05-2006
Страница 1: ...OPERATION MANUAL CP1H CPU Unit SYSMAC CP Series CP1H X40D CP1H XA40D CP1H Y20DT D Cat No W450 E1 02...
Страница 2: ...CP1H X40D CP1H XA40D CP1H Y20DT D CP1H CPU Unit Operation Manual Revised May 2006...
Страница 3: ...iv...
Страница 11: ...xii TABLE OF CONTENTS...
Страница 15: ...xvi...
Страница 19: ...xx...
Страница 31: ...xxxii Conformance to EC Directives 6...
Страница 71: ...40 Function Blocks Section 1 5...
Страница 133: ...102 Computing the Cycle Time Section 2 7...
Страница 169: ...138 CPM1A Expansion I O Unit Wiring Section 3 6...
Страница 411: ...380 Clock Section 6 8...
Страница 519: ...488 Replacing User serviceable Parts Section 10 2...
Страница 527: ...496 Standard Models Appendix A...
Страница 535: ...504 Dimensions Diagrams Appendix B...
Страница 628: ...597 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 629: ...598 Connections to Serial Communications Option Boards Appendix F...
Страница 659: ...628 PLC Setup Appendix G...
Страница 665: ...634 Index work words 159 write protection 370...
Страница 667: ...636 Revision History...