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207
High-speed Counters
Section 5-2
Counter Input Modes
Differential Phase Mode
(4x)
The differential phase mode uses two phase signals (phase A and phase B)
and increments/decrements the count according to the status of these two
signals.
Conditions for Incrementing/Decrementing the Count
Pulse + Direction Mode
The pulse + direction mode uses a direction signal input and pulse signal
input. The count is incremented or decremented depending on the status (ON
or OFF) of the direction signal.
Conditions for Incrementing/Decrementing the Count
• The count is incremented when the direction signal is ON and decre-
mented when it is OFF.
• Only up-differentiated pulses (rising edges) can be counted.
Reset Bit
Used for the PV software reset.
A531.00
A531.01
A531.02
A531.03
High-speed Counter Gate
Bit
When a counter's Gate Bit is ON, the counter's
PV will not be changed even if pulse inputs are
received for the counter.
A531.08
A531.09
A531.10
A531.11
Function
High-speed counter number
0
1
2
3
11
12
11
10
10
9
9
8
8
8
7
7
7
6
6
6
5
5
5
4
4
4
3
3
3
2
2
2
1
1
0
Phase-A
Phase-B
Count
Phase A
Phase B
Count value
↑
L
Increment
H
↑
Increment
↓
H
Increment
L
↓
Increment
L
↑
Decrement
↑
H
Decrement
H
↓
Decrement
↓
L
Decrement
2
2
1
1
0
0
7
6
8
7
6
5
5
4
4
3
3
Pulse
Direction
Direction
signal
Pulse
signal
Count value
↑
L
No change
H
↑
Increment
↓
H
No change
L
↓
No change
L
↑
Decrement
↑
H
No change
H
↓
No change
↓
L
No change
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...