Advantech PCI-1724U Manuel d'utilisateur télécharger pdf (Page 34)

PCI-1724U User Manual 26

3.3.2 I/O Connector Signal Descriptions

3.3.3 Analog Output Connection

The PCI-1724U provides 32 D/A output channels, AO0~AO31. You may

use the PCI-1724U’s internally provided precision reference to generate a

-10 V to +10 V D/A output range.

3.3.4 Voltage Mode:

The maximum driving ability for this card is 2 mA when voltage mode is

chosen.

Please note that RL can not be lower than | Vout | / 2 mA, or the card

could be damaged.

RL: External resistor

Table 3.1: I/O Connector Signal Descriptions

Signal Refere

nce

Direction Description

Vout<0~31> AGND Output Voltage Output, Channel 0 through

Iin<0~31> AGND Input(Sink) Current Input, Channel 0 through

AGND - - Analog Ground. The two ground

references (AGND and DGND) are

connected together on the PCI-

1724U card.

D/A n

Load

AGND

Vout_n

Data Bus

n: 0~31

Internal External

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

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Advantech PCI-1724U Manuel d'utilisateur Page 34