ADLINK Technology ACL -6128 User manual

NuDAQ

ACL-6128
2-Channel Isolated
12-bit Analog Output Card
User’s Guide

@Copyright 1995~2000 ADLINK Technology Inc.
All Rights Reserved.
Manual Rev. 2.22: June 29, 2000
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-6128 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.

Getting service from ADLINK
Customer Satisfaction is always the most important thing for ADLINK Tech Inc. If you
need any help or service, please contact us and get it.
ADLINK Technology Inc.
WebSite http://www.Adlink.com.tw
Sales&Service se[email protected]
Technical NuDAQ [email protected]
Support NuDAM [email protected]
NuIPC [email protected]
NuPRO [email protected]
Software [email protected]
AMB [email protected]
TEL [phone] FAX [phone]
Address 9F,No.166,JianYiRoad,ChunghoCity,Taipei,235Taiwan,R.O.C.
Please inform or FAX us of your detailed information for a prompt, satisfactory and
constant service. Detailed Company Information
Company/Organization
ContactPerson
E-mailAddress
Address
Country
TEL FAX
WebSite
Questions
ProductModel
EnvironmenttoUse OS
ComputerBrand
M/B:CPU:
Chipset: Bios:
VideoCard:
NetworkInterfaceCard:
Other:
ChallengeDescription
SuggestionsforADLINK

Table of Contents
•
i
Table of Contents
Chapter1 Introduction........................................................................1
1.1 Features............................................................................................................1
1.2 Applications ......................................................................................................2
1.3 Specifications ...................................................................................................2
1.4 Software Support..............................................................................................3
1.4.1 Programming Library.......................................................................3
1.4.2 LabView Driver...................................................................................3
Chapter2 Installation.........................................................................4
2.1 What You Have..................................................................................................4
2.2 Unpacking.........................................................................................................4
2.3 ACL-6128's Layout.............................................................................................5
2.4 Jumper and DIP Switch Description.................................................................6
2.5 Base Address Setting.......................................................................................6
2.6 Selecting D/A Range and Functions .................................................................8
2.6.1 Reference Source Setting...............................................................8
2.6.2 Output Range Setting.......................................................................9
2.6.3 Summary...........................................................................................10
2.7 Current Sink Range Setting.............................................................................11
2.8 Connector Pin Assignment .............................................................................12
2.9 Signal Connection...........................................................................................13
2.9.1 Voltage Output Connection...........................................................13
2.9.2 Current Sink Connection...............................................................13
2.9.3 Floating Load without external power supply..........................14
Chapter3 Low-Level Programming....................................................15
3.1 I/O Port Address Map......................................................................................15
3.2 D/A Data Format..............................................................................................16
3.3 Converted Data Representation......................................................................17
3.3.1 Unipolar Numbering........................................................................17
3.3.2 Bipolar Numbering..........................................................................17
3.4 D/A Conversion Sequence..............................................................................18
Chapter4 High-Level Programming....................................................19
4.1 Installation.......................................................................................................19
4.3 C Language Library.........................................................................................20
4.3.1 _6128_Initial.....................................................................................20
4.3.2 _6128_Switch_Card_No................................................................21
4.3.3 _6128_DA..........................................................................................21

ii
•
Table of Contents
Chapter5 Calibration........................................................................22
5.1 What do you need............................................................................................22
5.2 VR Assignment................................................................................................22
5.3 Internal Reference Source Adjustment ..........................................................23
5.4 Bipolar Output Calibration..............................................................................23
5.5 Unipolar Output Calibration............................................................................24
5.6 Current Sink Calibration..................................................................................24
Product Warranty/Service..................................................................26

How to Use This Guide
This manual is written to help you use the ACL-6128. The manual
describes how to modify various settings on the ACL-6128 card to meet
your requirements. It is divided into three chapters:
•Chapter 1, "Introduction," gives an overview of the product features, applications, and
specifications.
•Chapter 2, "Installation," describes how to install the ACL-6128. The layout of ACL-
6128 is shown, the jumper setting for base address, reference voltage source, and D/A
output ranges. Besides, all connectors' pin assignment and signal connection are also
specified.
•Chapter 3 , "Low-Level Programming," describes the details of register structure and
how to program the ACL-6128 for analog output in basic I/O primitive functions.
•Chapter 4 , "High-Level Programming," describes how to program the ACL-6128 for
analog output in high-level C language library.
•Chapter 5 , "Calibration," describes how to calibrate the ACL-782 for accurate
measurement.
•Appendix A, "I/O Port Address Map,", gives an overview I/O address map.

Introduction
•
1
1
Introduction
The ACL-6128 is an analog output card for the IBM Personal Computer
and compatibles with two separate D/A converters that can be updated
simultaneously. In addition to 12-bit resolution and 16KHz throughput on
each DAC, both voltage and current outputs are supported. It is an ideal
analog output device for cost effective solution in real industrial
applications.
The ACL-6128 is designed to meet high voltage isolation on each
analog output channel. Opto-isolators give 5000 Vrmsisolation to protect
both your PC and peripherals from damage due to high voltages on the
inputs. After youturn on or reset your PC system, both channels will reset
the output voltage to 0V in unipolar or bioplar output range.
The ACL-6128's register structure and jumper settings are fully
compatible with Advantech PCL-728. It will be no extra learning time for
the customers who are familiar with Advantech products. In addition,
many extra enhancements for reliability and performance are also
designed in the ACL-6128, such as surface mount components design,
and single +5V power consumption only, ...,etc.
1.1 Features
The ACL-6128 2-channel Isolated D/A Card provides the following
advanced features:
•Two independent 12-bit analog output channels
•> 5000 Vrms Isolation(channel-to-channel, input-to-output)

2
•
Introduction
•12-bit resolution, double-buffered 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 operation
•Compactsize -only half-size PCB
•4-layer PCB with an integral ground plane
•Fully compatible with Advantech PCL-728
1.2 Applications
•Arbitrary waveform generation
•Control of values, switches, relays
•Programmable voltage source
•Servo Control
•Programmable current sink
1.3 Specifications
The ACL-6128 provides the following specifications:
♦
Analog Output (D/A)
•Output Channel : 2 Isolated channels
•Resolution : 12-bit, double-buffered
•Setting Time : ≤30 µs
•Throughput : 16 KHz
•Output Range : (Jumper selectable)
Bipolar Voltage : ±10V, ±5V
Unipolar Voltage : 0~10V, 0~5V
Current Loop( sink) : 0~20mA, 4~20mA
•Reference Voltage :
Internal : -5Vand -10V
External : DC or AC, ±10V (max.)
•Output Drive Current : ±5mA
•Current Loop Excitation Voltage : +8V ( min.), 36V( max.) for 0~20mA or
4~20mA.
•Isolation Voltage : ≥500VDC
•Converter : AD7541 or equivalent
•Accuracy : ±0.012% of FSR