Measurement-computing PCI-DAS6071 Bedienungsanleitung PDF herunterladen (Seite 16)

PCI-DAS6071 User's Guide Functional Details

Auxiliary I/O Signals

I/O Type

Signal Name

Function

AUXIN<5:0> sources

(software selectable)

A/D CONVERT

External ADC Convert Strobe (default)

A/D TIMEBASE IN

External ADC Pacer Time Base

A/D START TRIGGER

ADC Start Trigger (default)

A/D STOP TRIGGER

ADC Stop Trigger (default)

A/D PACER GATE

External ADC Gate (default)

D/A START TRIGGER

DAC Trigger/Gate (default)

D/A UPDATE

DAC Update Strobe (default)

D/A TIMEBASE IN

External DAC Pacer Time Base

AUXOUT<2:0> sources

(software selectable)

STARTSCAN

A pulse indicating the start of conversion.

SSH

An active signal that terminates at the start of the last

conversion in a scan.

A/D STOP

Indicates the end of a scan

A/D CONVERT

ADC convert pulse (default)

SCANCLK

Delayed version of ADC convert (default)

CTR1 CLK

CTR1 clock source

D/A UPDATE

D/A update pulse (default)

CTR2 CLK

CTR2 clock source

A/D START TRIGGER

ADC Start Trigger Out

A/D STOP TRIGGER

ADC Stop Trigger Out

A/D PACER GATE

External ADC gate

D/A START TRIGGER

DAC Start Trigger Out

Default selections

summary

AUXIN0

A/D CONVERT

AUXIN1

A/D START TRIGGER

AUXIN2

A/D STOP TRIGGER

AUXIN3

D/A UPDATE

AUXIN4

D/A START TRIGGER

AUXIN5

A/D PACER GATE

AUXOUT0

D/A UPDATE

AUXOUT1

A/D CONVERT

AUXOUT2

SCANCLK

DAQ-Sync signals

The DAQ-Sync hardware provides the capability of triggering or clocking up to four slave boards from a master

board to synchronize data input and/or output.

The PCI-DAS6071 board provides the capability of inter-board synchronization between boards in the PCI-

DAS6000 family. There are five trigger/strobes and a synchronizing clock provided on a 14-pin header. The

following signals are available:

 DS A/D START TRIGGER

 DS A/D STOP TRIGGER

 DS A/D CONVERT

 DS D/A UPDATE

 DS D/A START TRIGGER

 SYNC CLK

Except for the SYNC CLK signal, the DAQ-Sync timing and control signals are a subset of the AUXIO signals

available at the 100-pin I/O connector. These versions of the signals are used for board-to-board

synchronization and have the same timing specifications as their I/O connector counterparts. Refer to "DAQ

signal timing" on page 18 for explanations of signals and timing.

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