Advantech PCI-1731 Uživatelský manuál stáhnout pdf (Strana 34)

Chapter 3

– 27 – PCI-1752/54/56 User’s Manual

Advantech Co., Ltd.

www.advantech.com

3.3 Isolated Digital Input Connections

The PCI-1754 has 64 isolated digital input channels designated

IDI00~IDI63, and PCI-1756 has 32 isolated digital input channels

designated IDI00~IDI31.

Interrupt function of the DI signals

There are 4 channels (IDI00, IDI16, IDI32 and IDI48) in PCI-1754 and 2

channels (IDI00 and IDI16) in PCI-1756 can be used to generate

hardware interrupts. A user can setup the configuration of interrupts

by programing the interrupt control register. For detailed information,

please refer to Section 4.1 Interrupt Function.

Isolated Inputs

Each of isolated digital input channel accepts 10~50 V

voltage

inputs, and accept bi-directional input. It means that you can apply

positive or negative voltage to an isolated input pin (V

). Every 16

input channels share one common pins. Figure 3-7 shows how to

connect an external input source to one of the card’s isolated input

channels

Fig. 3-7 Isolated digital input connection

PC 5V

IDI channels

InternalExternal

Protection

Circuit

Bi-direction

diode

SVin

(COM)

1 2 ... 29 30 31 32 33 34 35 36 37 38 39 ... 61 62

Žádné komentáře

Advantech PCI-1731 Uživatelský manuál Strana 34