Advantech AIIS-1882 handleiding
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17 AIIS-1882 User Manual
Chapter 3 Function Details
3.1.1.2 Digital Input Pattern Match Interrupt
Digital input channels can also generate an interrupt by detecting a specific pattern.
The pattern can be configured via ports, and each channel can enable or disable
detection independently. For example, if channels 0, 1, 2, 3, 6, and 7 of a digital input
port are pattern-match-detect enabled, and the pattern is "10xx0100" (channel 7
through 0, where x indicates a 'don't care' bit), the pattern-match interrupt will be gen-
erated as shown in Figure 3.4.
Figure 3.4 Digital input pattern match interrupt for pattern “10xx0100”
3.1.1.3 Digital Input Debounce Filter
To prevent false interrupts due to noise or bouncing in the signal, digital input signals
can be filtered. If the digital input filter is enabled, transient signals with a duration
smaller than the filter duration will be considered glitches and will not generate inter-
rupts, as shown in Figure 3.5. The digital input debounce filter can be enabled or dis-
abled independently for each channel, and the filter duration can be configured via
ports (8 channels).
Figure 3.5 Digital input debounce filter
3.1.2 Instant Digital Input Acquisition
With instant digital input acquisition, the software controls the sample timing. Each
time the software sends a “read instant digital input sample” command, the state of all
digital input channels is sampled as shown in Figure 3.6.
Figure 3.6 Instant digital input acquisition
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Productinformatie
| Merk | Advantech |
| Model | AIIS-1882 |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 5165 MB |
