IFM AL4043 handleiding
Handleiding
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Remote I/O module 16 DI AL4043
9
2. Hold
3. Invert
Digital input
Debouncing
Stretching
Inverting
Counter input
Process data
Filter module
Each filter can be configured separately.
• Maximum input frequency: 4500 Hz
• Minimum detectable positive pulse width: 0.115 ms (+ positive edge)
• Minimum detectable negative pulse width: 0.115 ms (+ negative edge)
4.5.1 Debouncing
The filter suppresses noise signals. The filter provides the input signals at the filter output with a delay
(debounce time). All signals shorter than the set debounce time are ignored by the filter.
Time diagram debounce filter:
2
1
1 11
0
1
0
1
0
1
t
Process data
Filter output
Filter input
1: Debounce time
2: Cycle time
4.5.2 Stretching
The filter stretches short input pulses. Level changes that occur during a stretching period are ignored.
The filter is configured via the following parameters:
• Hold time: pulse duration to which short pulses are to be stretched. Pulses that are present for a
longer time than the hold time are not stretched.
• Hold level: signal level to be stretched (HIGH or LOW)
Time diagram stretch filter (status HIGH):
2
1 1 1
0
1
0
1
0
1
t
Process data
Filter output
Filter input
1: Hold time
2: Cycle time
Time diagram stretch filter (status LOW):
Bekijk gratis de handleiding van IFM AL4043, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | IFM |
| Model | AL4043 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 5049 MB |
