Advantech PCL-734 Manual de usuario descargar pdf (Pagina 37)

Isolated Digital Input

Each of the 32 isolated digital input channels accept voltages from 5

to 30 V. Every eight input channels share one external common.

(Channels 0 ~ 7 use ECOM0. Channels 8 ~ 15 use ECOM1. Channels

16 ~ 23 use ECOM2. Channels 24 ~ 31 use ECOM3.) The following

figure shows how to connect an external input source to the card's

isolated inputs.

ECOM

EGND

Isolated

Circuit

Internal

Wet

contact

Dry

Contact

IDI0

IDI1

External

Figure 3-11: Isolated digital input connection

1 2 ... 32 33 34 35 36 37 38 39 40 41 42 ... 58 59

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Advantech PCL-734 Manual de usuario Pagina 37