I/O Port Bit Assignment
CNT24-4D(PCI)
43
Table 5.6. Digital filter clock settings
0
0
0
0
0.1
µ
sec
Approx. less than 1MHz
0
0
0
1
6.5
µ
sec
Approx. less than 15kHz
0
0
1
0
25.7
µ
sec
Approx. less than 3.5kHz
0
0
1
1
32.1
µ
sec
Approx. less than 3kHz
0
1
0
0
204.9
µ
sec
Approx. less than 480Hz
0
1
0
1
211.3
µ
sec
Approx. less than 470Hz
0
1
1
0
230.5
µ
sec
Approx. less than 430Hz
0
1
1
1
236.9
µ
sec
Approx. less than 420Hz
1
0
0
0
819.3
µ
sec
Approx. less than 122Hz
1
0
0
1
825.7
µ
sec
Approx. less than 121Hz
1
0
1
0
844.9
µ
sec
Approx. less than 118Hz
1
0
1
1
851.3
µ
sec
Approx. less than 117Hz
1
1
0
0
1024.1
µ
sec
Approx. less than 97Hz
1
1
0
1
1030.5
µ
sec
Approx. less than 96Hz
1
1
1
0
1049.7
µ
sec
Approx. less than 95Hz
1
1
1
1
1056.1
µ
sec
Approx. less than 94Hz
Accuracy with respect to a set cycle is approximately ±1/10,000.
Digital filter
clock cycle
Input frequency
D3 D2 D1 D0
Notes!
- The initial state is set to 0.1
m
sec. (When the cycle is not
specified, the cycle also defaults to 0.1
m
sec.)
- A delay of more than four set-cycle clocks may occur depending
on noise.
- If a level changes at a frequency faster than the set-sampling-
clock cycle, that level change is invalidated and not correctly
counted. Be sure to input signals which are less than the input
frequency.
Count Value Latch (Command 14H)
D7
D6
D5
D4
D3
D2
D1
D0
14H
CH3 LT
Not in use
CH2 LT CH1 LT CH0 LT
Latch the count value of a corresponding channel to the readout
register. Output 14H to output port +0 and set the data latch
setting with output port +1. When the appropriate bit is set to "1,"
the count value is latched. Setting all appropriate bits to "1"
allows simultaneous latching for all channels.
Note!
The initial state is set to "do not latch" (00H).
Содержание CNT24-4D(PCI)
Страница 1: ...CNT24 4D PCI 24Bit Differencial Up Down Counter Board for PCI User s Guide ...
Страница 29: ...Board Setup CNT24 4D PCI 20 ...
Страница 63: ...I O Port Bit Assignment CNT24 4D PCI 54 ...
Страница 66: ...Board Specifications CNT24 4D PCI 57 External Dimensions 176 4 107 0 mm ...
Страница 67: ...Board Specifications CNT24 4D PCI 58 ...
Страница 69: ...A 46 458 LZT0761 021018 001129 ...