DAQ VXI-SC-1102 Manual de Instruções descarregar pdf (Página 41)

National Instruments Corporation 4-1 DAQ Hardware Overview Guide

516 Devices and

DAQCard-500/700 Devices

This chapter contains overview information on the DAQCard-500,

DAQCard-516, DAQCard-700, and PC-516.

516 Devices and DAQCard-500/700 Analog Input

The DAQCard-500 provides eight multiplexed, single-ended analog input

channels. The DAQCard-700 provides 16 multiplexed, single-ended or

eight multiplexed differential analog input channels. The analog input

channels for both are driven into a 12-bit ADC. Neither device has gains on

the analog input.

The 516 devices have eight single-ended or four differential analog inputs.

Both devices use a 16-bit ADC and have no gains.

You can configure the DAQCard-700 analog input for three different

bipolar input ranges:

• −2.5 to +2.5 V

• −5 to +5 V

• −10 to +10 V

You can configure the 516 devices and the DAQCard-500 for only the

−5 to +5 V range.

You can initiate A/D conversions through software or by applying active

low pulses to the EXTCONV* input on the device I/O connector.

A 512-word-deep FIFO memory on the DAQCard-700 stores up to

512 A/D conversion results. On the DAQCard-500, a 16-word-deep FIFO

stores up to 16 A/D conversion results. The DAQCard-516 has a

512-word-deep FIFO; the PC-516 has a 16-word-deep FIFO.

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DAQ VXI-SC-1102 Manual de Instruções Página 41