Advantech PCI-1730 Bedienungsanleitung PDF herunterladen (Seite 21)

13 PCIE-1730 User Manual

Chapter 3 Signal Connections

Isolated Digital Input

Each of the 16 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.) The following figure shows how to connect an exter-

nal input source to the card's isolated inputs.

Figure 3.4 Isolated DI Connection

Isolated Digital Output

If the external voltage source (5~40 V) is connected to each isolated output channel

(IDO) and its isolated digital output turns on (500 mA max./ch), the card's current will

sink from the external voltage source. CN5 provides two EGND pins for IDO connec-

tion. The following figure shows how to connect an external output load to the card's

isolated outputs.

Figure 3.5 Isolated Digital Output Connection

ECOM

EGND

Isolated

Circuit

Internal

Wet

contact

Dry

Contact

IDI0

IDI1

External

Internal External

IDO0

IDO1

IDO2

IDO3

IDO4

IDO5

IDO6

IDO7

EGND

Isolated

Circuit

PCOM

Relay

Common

Diode

VDD

5~40V

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 27 28

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