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161
High-speed Counters
Section 5-1
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.
Up/Down Mode
The up/down mode uses two signals, an increment pulse input and a decre-
ment pulse input.
Conditions for Incrementing/Decrementing the Count
• The count is incremented for each increment pulse input and decre-
mented for each decrement pulse input.
• Only up-differentiated pulses (rising edges) can be counted.
Increment Mode
The increment mode counts single-phase pulse signal inputs. This mode only
increments the count.
Conditions for Incrementing/Decrementing the Count
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
2
2
1
1
0
0
7
6
8
7
6
5
5
4
4
3
3
Increment pulse
Decrement pulse
Decrement
pulse
Increment
pulse
Count value
↑
L
Decrement
H
↑
Increment
↓
H
No change
L
↓
No change
L
↑
Increment
↑
H
Decrement
H
↓
No change
↓
L
No change
14
2
15
1
16
0
9
10
8
7
6
11
5
12
4
13
3
Pulse
Pulse
Count value
↑
Increment
H
No change
↓
No change
L
No change
Содержание CP1L-L14D Series
Страница 2: ...CP1L L14D CP1L L20D CP1L M30D CP1L M40D CP1L CPU Unit Operation Manual Revised June 2007...
Страница 3: ...iv...
Страница 9: ...x...
Страница 13: ...xiv TABLE OF CONTENTS...
Страница 21: ...xxii...
Страница 33: ...xxxiv Conformance to EC Directives 6...
Страница 65: ...32 Function Blocks Section 1 5...
Страница 153: ...120 CP CPM1A series Expansion I O Unit Wiring Section 3 6...
Страница 523: ...490 Troubleshooting Unit Errors Section 9 4...
Страница 531: ...498 Replacing User serviceable Parts Section 10 2...
Страница 563: ...530 Auxiliary Area Allocations by Function Appendix C...
Страница 611: ...578 Auxiliary Area Allocations by Address Appendix D...
Страница 638: ...605 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 639: ...606 Connections to Serial Communications Option Boards Appendix F...
Страница 669: ...636 Index...
Страница 671: ...638 Revision History...