Advantech PCI-1711 Bedienungsanleitung PDF herunterladen (Seite 29)

23 Chapter 3

3.3.1 I/O Connector Signal Description

Table 3.2: I/O Connector Signal Descriptions

Signal Name Reference Direction Description

AI<0…15> AIGND Input Analog Input Channels 0 through 15.

Each channel pair, AI<i, i+1> (i = 0, 2,

4...14), can be configured as either two

single-ended inputs or one differential

input.

AIGND - - Analog Input Ground. The three

ground references (AIGND, AOGND,

and DGND) are connected together on

the PCI-1711U/UL.

AO0_REF

AO1_REF

AOGND Input Analog Output Channel 0/1 External

Reference.

AO0_OUT

AO1_OUT

AOGND Output Analog Output Channels 0/1.

AOGND - - Analog Output Ground. The three

ground references (AIGND, AOGND,

and DGND) are connected together on

the PCI-1711U/UL.

DI<0..15> DGND Input Digital Input Channels 0 through 15.

DO<0..15> DGND Output Digital Output Channels 0 through 15.

DGND - - Digital Ground. This pin supplies the

reference for the digital channels at the

I/O connector as well as the +5VDC

and +12 VDC supply. The three ground

references (AIGND, AOGND, and

DGND) are connected together on the

PCI-1711U/UL card.

CNT0_CLK DGND Input Counter 0 Clock Input.

Max. Input Frequency: 1 MHz

CNT0_OUT DGND Output Counter 0 Output.

CNT0_GATE DGND Input Counter 0 Gate Control.

PACER_OUT DGND Output Pacer Clock Output. This pin pulses

once for each pacer clock when turned

on. If A/D conversion is in the pacer

trigger mode, users can use this signal

as a synchronous signal for other

applications. A low-to-high edge trig-

gers A/D conversion to start.

1 2 ... 24 25 26 27 28 29 30 31 32 33 34 ... 45 46

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