Measurement-computing 2000 Series Daqboar Manual de usuario descargar pdf (Pagina 33)

DaqBoard/2000 Series & /2000c Series User’s Manual

10-18-02

Daq Systems and Device Overviews 1-7

Pulse Stream Output Using Timers

The boards allow the generation of output pulses based upon a programmable setting. These output timers

can be set at any time regardless of the state of any synchronous or asynchronous operations which are

currently taking place on other channels.

Analog Output Channels

The boards that have analog output capabilities have the ability to output analog data to any of the available

(up to four) D/A channels. Each D/A channel may be asynchronously updated by an application if the D/A

channel is not currently being used for waveform output operations.

Counter Input Channels

With exception of DaqBoard/2003 and /2003c, the boards have counter input capabilities and have the

ability to read counter input [if the counter channel is not configured for synchronous acquisition]. As in the

case of synchronous operations the 4 16-bit counter input channels can be used individually or cascaded

into 2 32-bit counter channels. For either cascaded or non-cascaded counter channels each channel can be

configured for:

•

Clear on Read Mode - specifies that each counter should be cleared (reset to 0) upon being read.

•

Continuous Totalize Mode – specifies that each counter is to free-run and not be cleared during

the read operation.

Operation Matrix

This chart refers to both the DaqBoard/2000 Series and the DaqBoard/2000c Series Boards.

Operation

2000 and

2000c

2001 and

2001c

2002 and

2002c

2003 and

2003c

2004 and

2004c

2005 and

2005c

Synchronous Input

Analog Main Unit Inputs (P1) Yes Yes No No No Yes

Analog Expansion Input (P1) Yes Yes No No No Yes

Counter Inputs (P3) Yes Yes Yes No Yes Yes

Digital Main Unit Inputs (P2) Yes Yes Yes No Yes Yes

Digital Expansion Inputs (P2) Yes Yes Yes No Yes Yes

Digital Inputs (P3) Yes Yes Yes No Yes Yes

Synchronous Output

Analog D/A Waveform Output Yes(2) Yes(4) No (0) Yes(4) Yes(4) No (0)

Streamed Digital Output (16-bit P3) Yes Yes Yes No Yes Yes

Asynchronous IO

Main Unit Digital I/O Yes Yes Yes No Yes Yes

Expansion Digital I/O Yes Yes Yes No Yes Yes

Timer Output (Pulse Generation) Yes Yes Yes No Yes Yes

Analog Output Yes(2) Yes(4) No (0) Yes(4) Yes(4) No (0)

* A similar matrix, intended to highlight board differences at a glance, is presented on page 1-4.

1 2 ... 28 29 30 31 32 33 34 35 36 37 38 ... 93 94

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Measurement-computing 2000 Series Daqboar Manual de usuario Pagina 33

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