ADLINK Technology NuDAQ DAQ-2500 Series User manual

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NuDAQ
DAQ-2500/PXI-2500 Series
High Performance
Analog Output Multi-function Cards
User's Guide
Recycled Paper

Copyright 2002~2003 ADLINK Technology Inc.
All Rights Reserved.
Manual Rev. 1.00: May 16, 2002
Part No : 50-12265-100
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, in-
cidental, 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
NuDAQ, NuIPC, NuDAM, NuPROare 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 the most important priority for ADLINK Tech Inc.
If you need any help or service, please contact us.
ADLINK Technology Inc.
Web Site http://www.adlinktech.com
Sales & Service [email protected]
NuDAQ + USBDAQ [e-mail]
NuDAM [e-mail]
NuIPC [e-mail]
Technical
Support NuPRO/EBC [e-mail]
TEL [phone] FAX [phone]
Address 9F, No. 166, Jian Yi Road, Chungho City, Taipei, 235 Taiwan.
•Please inform or FAX us of your detailed information for a prompt, satis-
factory and constant service.
Detailed Company Information
Company/Organization
Contact Person
E-mail Address
Address
Country
TEL FAX
Web Site
Questions
Product Model
OS:
Computer Brand:
Environment to Use M/B: CPU:
Chipset: BIOS:
Video Card:
Network Interface Card:
Other:
Detail Description
Suggestions for ADLINK

Table of Contents •i
Table of Contents
Chapter 1 Introduction .............................................................1
1.1 Features.............................................................................. 1
1.2 Applications....................................................................... 2
1.3 Specifications..................................................................... 3
1.4 Software Support................................................................ 7
1.4.1 Programming Library.................................................................7
1.4.2 D2K-LVIEW: LabVIEW®Driver .............................................7
1.4.3 D2K-OCX: ActiveX Controls....................................................8
Chapter 2 Installation................................................................9
2.1 Contents of Package........................................................... 9
2.2 Unpacking.........................................................................10
2.3 DAQ/PXI-2500 SERIES Layout........................................11
2.4 PCI Configuration.............................................................12
Chapter 3 Signal Connections................................................13
3.1 Connectors Pin Assignment...............................................13
Chapter 4 Operation Theorm ................................................16
4.1 A/D Conversion................................................................18
4.1.1 DAQ/PXI-2500 series AD Data Format..................................18
4.1.2 Software Polling........................................................................19
4.1.3 Programmable Scan ..................................................................19
4.1.3.1 Scan Timing and Procedure.................................................. 20
4.1.3.2 Trigger Mode....................................................................... 21

ii •Table of Contents
4.1.4.4 Bus-mastering DMA Data Transfer....................................... 23
4.2 D/A Conversion................................................................25
4.2.1 Software Update........................................................................28
4.2.2 Waveform Generation ..............................................................28
4.2.2.1 Waveform Generation Timing............................................... 29
4.2.2.2 Trigger Modes..........................................................................30
4.2.2.3 Iterative Waveform Generation............................................. 32
4.2.2.4 Stop Modes...........................................................................34
4.3 General Purpose Digital I/O...............................................36
4.4 General Purpose Timer/Counter Operation........................37
4.4.1 Timer/Counter functions basics ...............................................37
4.4.2 General Purpose Timer/Counter modes ..................................37
4.4.2.1 Mode1: Simple Gated-Event Counting...................................38
4.4.2.2 Mode2: Single Period Measurement......................................38
4.4.2.3 Mode3: Single Pulse-width Measurement..............................39
4.4.2.4 Mode4: Single Gated Pulse Generation.................................39
4.4.2.5 Mode5: Single Triggered Pulse Generation........................... 40
4.4.2.6 Mode6: Re-triggered Single Pulse Generation.......................40
4.4.2.7 Mode7: Single Triggered Continuous Pulse Generation.........41
4.4.2.8 Mode8: Continuous Gated Pulse Generation......................... 41
4.5 Trigger Sources.................................................................42
4.5.1 Software-Trigger.......................................................................42
4.5.2 External Analog Trigger...........................................................42
4.5.2.1 Below-Low analog trigger condition .....................................43
4.5.2.2 Above-High analog trigger condition .................................... 44
4.5.2.3 Inside-Region analog trigger condition .................................44

Table of Contents •iii
4.5.2.4 High-Hysteresis analog trigger condition.............................. 45
4.5.2.5 Low-Hysteresis analog trigger condition...............................45
4.6 Timing Signals..................................................................46
4.6.1 System Synchronization Interface ...........................................47
Chapter 5 Calibration .............................................................48
5.1 Auto-calibration................................................................49
5.2 Saving Calibration Constants.............................................49
5.3 Loading Calibration Constants...........................................49
Chapter 6 Appendix A.............................................................50
6.1 Waveform Generation Demonstration................................50
Warranty Policy.......................................................................53

iv •How to Use This Guide
How to Use This Guide
This manual is designed to help you use/understand the DAQ/PXI-2500
SERIES high performance analog output multi-function cards. The
manual describes the functions and the operation theory of the
DAQ/PXI-2500 SERIES. It is divided into five chapters:
Chapter 1,Introduction gives an overview of the product features, ap-
plications, and specifications.
Chapter 2,Installation describes how to install the DAQ/PXI-2500
SERIES cards. The layout and positions of all the connectors on the
DAQ/PXI-2500 SERIES are also shown.
Chapter 3,Signal Connections describes the connector’s pin assign-
ment and how to connect external signals to the DAQ/PXI-2500 SERIES.
Chapter 4,Operation Theory describes how DAQ/PXI-2500 SERIES
operates. The A/D, D/A, GPIO, timer/counter, trigger and timing signal
routing are introduced.
Chapter 5, Calibration describes how to calibrate the DAQ/PXI-2500
SERIES for accurate measurements.

Introduction •1
1
Introduction
DAQ/PXI-2500 SERIES is an advanced analog output card based on the
32-bitPCI/PXI architecture. Highperformance designsandstate-of-the-art
technology make this card ideal for waveform generation, industrial proc-
ess control, and signal analysis applications in medical, process control,
etc.
1.1 Features
DAQ/PXI-2500 SERIES advanced analog output cards provide the
following advanced features:
•32-bit PCI/PXI-Bus, plug and play
•Up to 1MS/s analog output rate
•Up to 400KS/s analog input rate
•Up to 8 analog output channels for DAQ/PXI-2502, and 4 analog output
channels for DAQ/PXI-2501
•Up to 4 analog input channels for DAQ/PXI-2502, and 8 analog input
channels for DAQ/PXI-2501
•Programmable bipolar/unipolar range for analog input channels and
individual analog output channels
•Programmable internal/external reference for individual analog output
channels

2•Introduction
•D/A FIFO size: 8K samples for DAQ/PXI-2501, and 16K samples for
DAQ/PXI-2502
•A/D FIFO size: 2K samples
•Versatile trigger sources: software trigger, external digital trigger, ana-
log trigger and trigger from System Synchronization Interface (SSI)
•A/D Data transfer: software polling & bus-mastering DMA with Scat-
ter/Gather
•D/A Data transfer: software update and bus-mastering DMA with
Scatter/Gather
•A/Dtrigger modes: post-trigger,delay-trigger withre-trigger functionality
•D/A outputs with waveform generation capability
•System Synchronization Interface (SSI)
•A/D and D/A fully auto-calibration
•Build-in programmable D/A external reference voltage compensator
•Completely jumper-less and software configurable
1.2 Applications
•Automotive Testing
•Arbitrary Waveform Generator
•Transient Signal Measurement
•ATE
•Laboratory Automation
•Biotech measurement

Introduction •3
1.3 Specifications
Analog Output (AO)
•Number of channels: 4-CH for DAQ/PXI-2501, 8-CH for DAQ/PXI-2502
•DA converter: AD7945
•Max update rate: 1MS/s
•Resolution: 12 bits
•FIFO buffer size: 8K for DAQ/PXI-2501, 16K for DAQ/PXI-2502
•Data transfer: Programmed I/O, and bus-mastering DMA with scat-
ter/gather
•Voltage reference: internal 10V or external up to ±10V
•Output range:
Bipolar: ±10V or ±external reference
Unipolar: 0~10V or 0~ external reference
•Settling time for –10~+10V step: 2µs
•Slew rate: 20V/µs
•Output coupling: DC
•Protection: Short-circuit to ground
•Output impedance: 0.1Ω. max.
•Output current: ±5mA max.
•Power-on state: 0V steady-state
•Power-on glitch: ±600mV/500µs
•Offset error:
Before calibration: ±80mV max
After calibration: ±2mV max
•Gain error:
Before calibration: ±0.8% of output max
After calibration: ±0.02% of output max

4•Introduction
Analog Input (AI)
•Number of channels: 4 single-ended for DAQ/PXI-2502, 8 single-ended
for DAQ/PXI-2501
•AD converter: LTC1416
•Max sampling rate: 400KS/s
•Resolution: 14 bits
•FIFO buffer size: 2K samples
•Input range: Bipolar: ±10V, unipolar: 0~10V
•Over voltage protection: Continuous ±35V maximum
•Input impedance: 1GΩ| 6pF
•Trigger mode: Pre-trigger, post-trigger, middle-trigger, and delay trigger
•Data transfers: Programmed I/O, and bus-mastering DMA with scat-
ter/gather
•Input coupling: DC
•Offset error:
Before calibration: ±40mV max
After calibration: ±1mV max
•Gain error:
Before calibration: ±0.4 % of output max
After calibration: ±1mV of output max
General Purpose Digital I/O (G.P. DIO)
•Number of channels: 24 programmable Input/Output
•Compatibility: TTL/CMOS
•Input voltage:
Logic Low: VIL=0.8V max.; IIL=0.2mA max.
High: VIH=2.0V max.; IIH=0.02mA max
•Output voltage:
Low: VOL=0.5 V max.; IOL=8mA max.
High: VOH=2.7V min; IOH=400µA

Introduction •5
General Purpose Timer/ Counter (GPTC)
•Number of channel: 2 Up/Down Timer/Counters
•Resolution: 16 bits
•Compatibility: TTL/CMOS
•Clock source: Internal or external
•Max source frequency: 10MHz
Analog Trigger (A.Trig)
•Source: external analog trigger (EXTATRIG)
•Level: ±10V external
•Resolution: 8 bits
•Slope: Positive or negative (software selectable)
•Hysteresis: Programmable
•Bandwidth: 400khz
•External Analog Trigger Input (EXTATRIG)
•Impedance: 40KΩ
•Coupling: DC
•Protection: Continuous ±35V maximum
System Synchronous Interface (SSI)
•Trigger lines: 7
Calibration
•Recommended warm-up time: 15 minutes
•On-board reference: 5.0V
•Temperature coefficient: ±2ppm/°C
•Long-term stability: 6ppm/1000Hr
Physical
•Dimension: 175mm by 107mm
•I/O connector: 68-pin female mini-SCSI type

6•Introduction
•Power Requirement: +5VDC; 1.6A typical
Operating Environment
•Ambient temperature: 0 to 55°C
•Relative humidity: 10% to 90% non-condensing
Storage Environment
•Ambient temperature: -20 to 70°C
•Relative humidity: 5% to 95% non-condensing

Introduction •7
1.4 Software Support
ADLINK provides versatile software drivers and packages for users’ dif-
ferent approach to building up a system. ADLINK not only provides pro-
gramminglibrariessuchas DLLformostWindowsbased systems, but also
provide drivers for other software packages such as LabVIEW®.
All software options are included in the ADLINK CD. Non-free software
drivers are protected with licensing codes. Without the software code , you
can install and run the demo version for two hours for trial/demonstration
purposes. Please contact ADLINK dealers to purchase the formal license.
1.4.1 Programming Library
For customers who are writing their own programs, we provide function
libraries for many different operating systems, including:
D2K-DASK: Include device drivers and DLL for Windows 98,
Windows NT and Windows 2000. DLL is binary compatible across
Windows 98, Windows NT and Windows 2000/XP. This means all
applications developed with D2K-DASK are compatible across
Windows 98, Windows NT and Windows 2000/XP. The developing
environment can be VB, VC++, Delphi, BC5, or any Windows pro-
gramminglanguage that allowscalls toa DLL.The user’s guide and
function reference manual of D2K-DASK are in the CD.
(\\Manual_PDF\Software\D2K-DASK)
D2K-DASK/X : Include device drivers and shared library for Linux.
The developing environment can be Gnu C/C++ or any program-
ming language that allows linking to a shared library. The user's
guideand function referencemanual ofD2K-DASK/X are in the CD.
(\Manual_PDF\Software\D2K-DASK-X.)
1.4.2 D2K-LVIEW: LabVIEW®Driver
D2K-LVIEW contains the VIs, which are used to interface with NI’s Lab-
VIEW®software package. The D2K-LVIEW supports Windows
98/NT/2000/XP. The LabVIEW®driver is shipped free with the board. You
can install and use them without a license. For detailed information about
D2K-LVIEW, please refer to the user’s guide in the CD.
(\\Manual_PDF\Software\D2K-LVIEW)

8•Introduction
1.4.3 D2K-OCX: ActiveX Controls
We suggest customers who are familiar with ActiveX controls and
VB/VC++ programming use PCIS-OCX ActiveX control component librar-
ies for developing applications. PCIS-OCX is designed for Windows
98/NT/2000/XP. For more detailed information about PCIS-OCX, please
refer to the user's guide in the CD.
(\Manual_PDF\Software\D2K-OCX\D2K-OCX.PDF)
The above software drivers are shipped with the board. Please refer to the
“Software Installation Guide” in the package to install these drivers.
In addition, ADLINK supplies an ActiveX control software DAQBench.
DAQBench is a collection of ActiveX controls for measurement or auto-
mation applications. With DAQBench, you can easily develop custom user
interfacesto display yourdata, analyzedata youacquired orreceived from
other sources, or integrate with popular applications or other data sources.
Formore detailed information about DAQBench, please refer to the user's
guide in the CD.
(\Manual_PDF\Software\DAQBench\DAQBenchManual.PDF)
You can also get a free 4-hour evaluation version of DAQBench from the
CD.
DAQBench is not free. Please contact ADLINK dealer or ADLINK to pur-
chase the software license.

Installation •9
2
Installation
This chapter describes how to install DAQ/PXI-2500 SERIES cards. The
contents of the package and unpacking information that you should be
aware of are outlined first.
DAQ/PXI-2500 SERIES performs an automatic configuration of the IRQ,
and port address. Users can use software utility, PCI_SCAN.EXE to read
the system configuration.
2.1 Contents of Package
In addition to this User's Guide, the package should include the following
items:
•DAQ/PXI-2500 SERIES Multi-function Data Acquisition Card
•ADLINK All-in-one Compact Disc
•Software Installation Guide
If any of these items are missing or damaged, contact the dealer from
whom you purchased the product. Save the shipping materials and carton
in case you want to ship or store the product in the future.

10 •Installation
2.2 Unpacking
Your DAQ/PXI-2500 SERIES card contains electro-static sensitive com-
ponents that can be easily be damaged by static electricity.
Therefore, the card should be handled on a grounded anti-static mat. The
operator should be wearing an anti-static wristband, grounded at the same
point as the anti-static mat.
Inspect the card module carton for obvious damages. Shipping and han-
dling may cause damage to your module. Be sure there are no shipping
and handling damages on the modules carton before continuing.
After opening the card module carton, extract the system module and place
it only on a grounded anti-static surface with component side up.
Again, inspect the module for damages. Press down on all the socketed
IC's to make sure that they are properly seated. Do this only with the
module place on a firm flat surface.
Note: DO NOT APPLY POWER TO THE CARD IF IT HAS BEEN
DAMAGED.
You are now ready to install your DAQ/PXI-2500 SERIES.

Installation •11
2.3 DAQ/PXI-2500 SERIES Layout
Figure 2.2 PCB Layout of DAQ-2502/2501
Figure 2.3 PCB Layout of PXI-2502/2501