Advantech PCI-1720 Uživatelský manuál stáhnout pdf (Strana 6)

2 PCI-1713 User's Manual

1.1 Introduction

The PCI-1713 is a 12-bit 32-channel analog input card for the PCI

bus. It provides 32 analog input channels with a sampling rate up to

100k samples/s, 12-bit resolution and isolation protection of 2500

VDC.

PCI-bus Plug and Play

The PCI-1713 uses a PCI controller to interface the card with the PCI

bus. The controller fully implements the PCI bus specification Rev 2.1.

All bus relative configurations, such as base address and interrupt

assignment, are automatically controlled by software.

Flexible Input Types and Range Settings

The PCI-1713 features an automatic channel/gain scanning circuit.

The circuit, rather than your software, controls multiplexer switching

during sampling. The on-board SRAM stores different gain values

and configurations for each channel. This design lets you perform

multi-channel sampling with different gains for each channel and with

free combination of single-ended and differential inputs.

High-speed Data Acquisition

The PCI-1713 provides a sampling rate up to 100k samples/s. It has an

on-board FIFO buffer, which can store up to 4K A/D samples and

generates an interrupt signal when the FIFO is half full. This feature

provides continuous high-speed data transfer and more predictable

performance on Windows systems.

Supports S/W, Internal and External Pacer

Triggering

The PCI-1713 supports three kinds of trigger modes for A/D conver-

sion: software triggering, internal pacer triggering and external pacer

triggering. The software trigger allows users to acquire a sample when

it is needed; the internal pacer triggers continuous high-speed data

acquisition. The PCI-1713 also accepts external trigger sources,

allowing synchronous sampling with external devices.

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Advantech PCI-1720 Uživatelský manuál Strana 6