ADLINK ACL-6128A User Manual

Isolated Analog Output Card

NuDAQ®

ACL-6128A

2-CH 12-bit

User’s Guide

©Copyright 1995, 2003 ADLINK TECHNOLOGY INC.
All Rights Reserved.
Manual Rev. 1.00: August 12, 2003
Part No: 50-11032-100
The information in this document is subject to change without prior notice in

order to improve reliability, design and function and does not represent a
commitment on the part of the manufacturer.

In no event will the manufacturer be liable for direct, indirect, special, incidental,
or consequential damages arising out of the use or inability to use the product
or documentation, even if advised of the possibility of such damages.

This document contains proprietary information protected by copyright. All
rights are reserved. No part of this manual may be reproduced by any
mechanical, electronic, or other means in any form without prior written
permission of the manufacturer.

Trademarks

ACL-6128A is registered trademarks of ADLINK TECHNOLOGY INC.
Other product names mentioned herein are used for identification purposes

only and may be trademarks and/or registered trademarks of their respective
companies.

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Customer Satisfaction is top priority for ADLINK TECHNOLOGY INC. If you
need any help or service, please contact us.

ADLINK TECHNOLOGY INC.

Web Site http://www.adlinktech.com
Sales & Service [e-mail]
TEL [phone] FAX [phone]
Address 9F, No. 166, Jian Yi Road, Chungho City, Taipei, 235 Taiwan

Please email or FAX your detailed information for prompt, satisfactory, and
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Questions

Product Model

OS:
Computer Brand:
M/B: CPU:

Environment

Detail Description

Chipset: BIOS:
Video Card:
NIC:
Other:

Suggestions for ADLINK

Table of Contents

Chapter 1 Introduction.......................................................1

1.1 Features................................................................................... 2

1.2 Applications.............................................................................. 2

1.3 Specifications........................................................................... 3

1.4 Software Support..................................................................... 4

1.4.1 Programming Library............................................................4

1.4.2 LabView Driver.....................................................................4

Chapter 2 Installation.........................................................5

2.1 What’s Included ....................................................................... 5

2.2 Unpacking................................................................................ 6

2.3 ACL-6128A's Layout................................................................ 7

2.4 Jumper and DIP Switch Description........................................ 7

2.5 Base Address Setting .............................................................. 8

2.6 Selecting D/A Range and Functions...................................... 10

2.6.1 Reference Source Setting……………………………………..10

2.6.2 Output Range Setting………………………………………….11

2.6.3 Summary………………………………………………………..13

2.7 Current Sink Range Setting................................................... 15

2.8 Connector Pin Assignment.................................................... 16

2.9 Signal Connection.................................................................. 17

2.9.1 Voltage Output Connection……………………………………17

2.9.2 Current Sink Connection………………………………………17

2.9.3 Floating Load without external power supply……………….18

Chapter 3 Low-Level Programming ................................ 19

3.1 I/O Port Address Map ............................................................ 19

3.2 D/A Data Format.................................................................... 20

3.3 Converted Data Representation............................................ 21

3.3.1 Unipolar Numbering……………………………………………21

3.3.2 Bipolar Numbering……………………………………………..21

3.4 D/A Conversion Sequence .................................................... 22

Chapter 4 High-Level Programming................................23

4.1 Installation.............................................................................. 24

4.3 C Language Library ............................................................... 25

Chapter 5 Calibration ....................................................... 27

Table of Contents • i

5.1 What is Needed ..................................................................... 27

5.2 VR Assignment...................................................................... 28

5.3 Internal Reference Source Adjustment.................................. 28

5.4 Unipolar Output Calibration .................................................. 29

5.5 Bipolar Output Calibration..................................................... 30

5.6 Current Sink Calibration......................................................... 30

Warranty Policy.................................................................31

ii • Table of Contents

How to Use This Guide

This manual is written to help users understand the ACL-6128A. Descriptions
of how to modify various settings on the ACL-6128A are provided in the
chapters below to meet your application specific requirements.

Chapter 1
Overview of product features, applications, and specifications.

Chapter 2
Installation instructions of the ACL-6128A with layout jumper

Chapter 3
Details register structure and programming for analog output in

Chapter 4
Describes programming for analog output using a high-level C

Chapter 5
Explains how calibration procedures for the ACL-6128A.

Introduction

Installation

settings, reference voltage source, D/A output ranges, pin
assignments, and signal connections.

Low-Level Programming

basic I/O primitive functions.

High-Level Programming

language library.

Calibration

How to Use This Guide • iii

1

Introduction

The ACL-6128A is an ideal cost effective analog output card with two separate
D/A converters In addition to 12-bit resolution and 16kHz throughput on each
DAC, supporting both voltage and current outputs for industrial applications.

The ACL-6128A provides high voltage isolation on each analog output channel.
Opto-isolators give 2500 V
from damage due to high voltages on the inputs. After powering on or resetting
the PC system, both channels will reset the output voltage to 0V in unipolar or
bioplar output range.

The ACL-6128A is fully compatible with the Advantech PCL-728, ensuring an
easy learning curve for customers familiar with Advantech products as well as
an easy replacement with addition functionality. Extra enhancements include
remarkable reliability and performance, surface mount components design, and
single +5V power consumption.

isolation to protect both the PC and peripherals

RMS

Introduction • 1

1.1 Features

The ACL-6128A 2-channel Isolated D/A Card provides the following advanced
features:

• Fully compatible with ADLINK ACL-6128 and AdvantechPCL-728

• Two independent 12-bit analog output channels

• 2500 V

• 12-bit resolution, multiplying D/A converter

• Multiple output ranges

• Bipolar: ±10V, ±5V

• Unipolar: 0-10V, 0-5V

• Sink: 0-20mA, 4-20mA current loop

• Integral DC-to-DC converter for stable output operations

• Compact, half-size PCB

• 4-layer PCB with an integral ground plane

Isolation (channel-to-channel, input-to-output)

RMS

1.2 Applications

• Arbitrary waveform generation

• Control of values, switches, relays

• Programmable voltage source

• Servo Control

• Programmable current sink

2 • Introduction

1.3 Specifications

The ACL-6128A provides the following specifications:

Analog Output (D/A)

♦

Output Channel:

•

Resolution:

•

Settling Time:

•

Output Range:

•

Bipolar Voltage:

•

Unipolar Voltage:

•

Current Loop (sink) :

•

Reference voltages

•

Internal:



External:



Output Drive Current:

•

Current Loop Excitation Voltage:

•
20mA.

Isolation Voltage:

•

Accuracy:

•

Linearity:

•

Data Transfer:

•

Temperature coefficient

•

2 Isolated channels

12-bit, multiplying D/A converter

≤ 30 μs
(Jumper selectable)

±10V, ±5V

0-10V, 0-5V

0-20mA, 4-20mA

-5V and -10V
DC or AC, ± 10V (max.)

5mA

±

+8V min, 36V max for 0-20mA or 4-

2500V

RMS

±0.012% of FSR

1/2 LSB

±

Programmable I/O

5ppm typical, 15ppm maximum

General Specifications

♦

Bus Type:

•

Connector:

•

Operating Temperature:

•

Storage Temperature:

•

Humidity:

•

Power Consumption:

•

Dimension:

•

PC/AT Bus

Two 9-pin D-sub female connector

5 - 95%, non-condensing

0°C - 55°C

-20°C - 70°C

+5V @ 780mA typical, 1A max

163 mm (L) x 107 mm (M)

Introduction • 3

1.4 Software Support

1.4.1 Programming Library

A MS-DOS Borland C/C++ programming library is included for customers
writing application specific programs,

ACLS-DLL2 is a Development Kit for NuDAQ ISA bus cards with analog I/O for
Windows 3.1/9x/NT/2000. ACLS-DLL2 can be used with most programming
environments, such as Visual C++, Visual Basic, and Delphi. ACLS-DLL2 is
included in the ADLINK CD and requires a license.

1.4.2 LabView Driver

The ACLS-LVIEW LabView driver includes the ACL-6128A VIs to interface with
LabView. ACLS-LVIEW supports Windows 9x/NT/2000/XP. ACLS-LVIEW is
included in the ADLINK CD and requires a license.

4 • Introduction