ADLINK DAQe-2502 User Manual

NuDAQ-2500 Series

High Performance Analog Output and

Multi-function Data Acquisition Cards

User’s Manual

Manual Rev. 2.01

Revision Date: March 19, 2006

Part No: 50-11221-2000

Advance Technologies; Automate the World.

Copyright 2007 ADLINK TECHNOLOGY INC.

All Rights Reserved.

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

Product names mentioned herein are used for identification pur­poses only and may be trademarks and/or registered trademarks
of their respective companies.

Getting service

Customer satisfaction is our top priority. Contact us should you
require any service or assistance.

ADLINK TECHNOLOGY INC.

Web Site http://www.adlinktech.com
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Mailing Address 9F No. 166 Jian Yi Road, Chungho City,

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Using this manual

1.1 Audience and scope

This manual guides you when using ADLINK NuDAQ-2500 Series
card. The card’s hardware, signal connections, and calibration
information are provided for faster application building. This man­ual is intended for computer programmers and hardware engi­neers with advanced knowledge of data acquisition and high-level
programming.

1.2 How this manual is organized

This manual is organized as follows:

Chapter 1 Introduction: This chapter introduces the NuDAQ­2500 Series card including its features, specifications and soft­ware support information.

Chapter 2 Installation: This chapter presents the card’s lay­out, package contents, and installation.

Chapter 3 Signal Connections: This part describes the
NuDAQ-2500 Series card signal connections.

Chapter 4 Operation Theory: The operation theory of the
NuDAQ-2500 Series card functions including A/D conversion,
D/A conversion, and programmable function I/O are discussed
in this chapter.

Chapter 5 Calibration: The chapter offers information on how
to calibrate the NuDAQ-2500 Series card for accurate data
acquisition and output.

Appendix: The Appendix demonstrates several waveform
generation and other related information.

Warranty Policy: This presents the ADLINK Warranty Policy
terms and coverages.

1.3 Conventions

Take note of the following conventions used throughout the man­ual to make sure that you perform certain tasks and instructions
properly.

NOTE Additional information, aids, and tips that help you per-

form particular tasks.

IMPORTANT Critical information and instructions that you MUST perform to

WARNING Information that prevents physical injury, data loss, mod-

complete a task.

ule damage, program corruption etc. when trying to com­plete a particular task.

Table of Contents

Table of Contents..................................................................... i

List of Tables.......................................................................... iii

List of Figures ........................................................................ iv

1 Introduction ........................................................................ 1

1.1 Features............................................................................... 1

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

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

Analog Output (AO) ........................................................ 3

Analog Input (AI) ............................................................. 4

General Purpose Digital I/O (G. P. DIO) ......................... 5

General Purpose Timer/ Counter (GPTC) ...................... 5

Analog Trigger (A.Trig) ................................................... 5

System Synchronous Interface (SSI) .............................. 6

Calibration ....................................................................... 6

Physical .......................................................................... 6

Operating Environment ................................................... 6

Storage Environment ...................................................... 6

1.4 Block Diagram ..................................................................... 7

1.5 Software Support ................................................................. 8

Programming Library ...................................................... 8

DAQ-LVIEW PnP: LabVIEW Driver ................................ 9

D2K-OCX: ActiveX Controls ........................................... 9

2 Installation ........................................................................ 11

2.1 Package Contents ............................................................. 11

2.2 Unpacking.......................................................................... 12

2.3 Card Layout ....................................................................... 13

DAQe-2502/2501 .......................................................... 13

DAQ-2502/2501 ............................................................ 14

DPXI-2501/2502 ........................................................... 15

2.4 PCI Configuration .............................................................. 16

Plug and Play ............................................................... 16

Configuration ................................................................ 16

Troubleshooting ............................................................ 16

Table of Contents i

3 Signal Connections .......................................................... 17

3.1 Connectors Pin Assignment............................................... 17

4 Operation Theory .............................................................. 21

4.1 A/D Conversion.................................................................. 21

AD Data Format ............................................................ 22

Acquisition Modes ......................................................... 23

Scan Timing and Procedure ......................................... 24

Trigger Modes ............................................................... 26

Bus-mastering DMA Data Transfer ............................... 29

4.2 D/A Conversion.................................................................. 31

Architecture ................................................................... 31

Hardware-Controlled Waveform Generation ................ 32

Data Format in FIFO and Mapping ............................... 33

Setting up the DACs ..................................................... 33

Using DACs’ Multiplying Characteristic ........................ 34

Software Update ........................................................... 34

Waveform Generation ................................................... 35

Waveform Generation Timing ....................................... 36

Trigger Modes ............................................................... 38

Iterative Waveform Generation ..................................... 41

4.3 General Purpose Digital I/O .............................................. 45

4.4 General Purpose Timer/Counter Operation ....................... 46

Basics Timer/Counter Function Basics ......................... 46

General Purpose Timer/Counter Modes ....................... 47

4.5 Trigger Sources ................................................................. 52

Software-Trigger ........................................................... 52

External Analog Trigger ................................................ 52

4.6 Timing Signals ................................................................... 56

System Synchronization Interface ................................ 57

5 Calibration ......................................................................... 59

5.1 Loading Calibration Constants........................................... 59

5.2 Auto-calibration .................................................................. 60

5.3 Saving Calibration Constants............................................. 60

Appendix ................................................................................ 61

Warranty Policy ..................................................................... 65

ii Table of Contents

List of Tables

Table 3-1: VHDCI-type (68-pin) Connector Pin Assignment ... 18

Table 3-2: VHDCI-type (68-pin) Connector Legend ................ 19

Table 4-1: Bipolar Input Range and

Converted Digital Codes ......................................... 22

Table 4-2: Unipolar Input Range and

Converted Digital Codes ......................................... 22

Table 4-3: Trigger Modes and

Corresponding Trigger Sources ............................. 23

Table 4-4: Summary of Counters for Programmable Scan ...... 24

Table 4-5: D/A Output Versus Digital Codes ........................... 34

Table 4-6: Trigger Signals and

Corresponding Signal Sources ............................... 35

Table 4-7: Summary of Counters for Waveform Generation ... 36
Table 4-8: Ideal Transfer Characteristic of

Analog Trigger SRC1 (EXTATRIG) ........................ 53

List of Tables iii

List of Figures

Figure 1-1: DAQ-/DAQe-/PXI-2502/2501 Block Diagram ............ 7

Figure 2-1: DAQe-2502/2501 Card Layout ................................ 13

Figure 2-2: DAQ-2502/2501 Card Layout .................................. 14

Figure 2-3: DAQ-2502/2501 Card Layout .................................. 15

Figure 4-1: Scan Timing............................................................. 25

Figure 4-2: Post Trigger ............................................................. 26

Figure 4-3: Delay Trigger ........................................................... 27

Figure 4-4: Post Trigger with Retrigger ...................................... 28

Figure 4-5: Scatter/gather DMA ................................................. 30

Figure 4-6: Block Diagram of D/A Group ................................... 31

Figure 4-7: FIFO Data Format.................................................... 32

Figure 4-8: Typical D/A Timing of Waveform Generation .......... 37

Figure 4-9: Post Trigger Generation .......................................... 38

Figure 4-10: Delay-Trigger Generation ........................................ 39

Figure 4-11: Post Trigger or Delay-Trigger Generation with

Retrigger .................................................................. 40

Figure 4-12: Finite Iterative Waveform Generation with

Post-trigger .............................................................. 41

Figure 4-13: Post Trigger or Delay-Trigger Generation with

Retrigger .................................................................. 41

Figure 4-14: Stop Mode I ............................................................. 43

Figure 4-15: Stop Mode II ............................................................ 44

Figure 4-16: Stop Mode III ........................................................... 44

Figure 4-17: Mode1 Operation ..................................................... 47

Figure 4-18: Mode2 Operation ..................................................... 48

Figure 4-19: Mode 3 Operation .................................................... 48

Figure 4-20: Mode4 Operation ..................................................... 49

Figure 4-21: Mode5 Operation ..................................................... 49

Figure 4-22: Mode6 Operation ..................................................... 50

Figure 4-23: Mode7 Operation ..................................................... 50

Figure 4-24: Mode8 Operation ..................................................... 51

Figure 4-25: Analog Trigger Block Diagram................................. 52

Figure 4-26: Below-Low Analog Trigger Condition ...................... 53

Figure 4-27: Above-High Analog Trigger Condition ..................... 54

Figure 4-28: Inside-Region Analog Trigger Condition.................. 54

Figure 4-29: High-Hysteresis Analog Trigger Condition............... 55

Figure 4-30: Low-Hysteresis Analog Trigger Condition ............... 55

Figure 4-31: DAQ Signals Routing............................................... 56

iv List of Figures

1 Introduction

The NuDAQ-2500 Series features the DAQ-/DAQe-/PXI-2502/
2501 advanced analog output card based on the 32-bit PCI/PCI
Express
state-of-the-art technology, these cards are ideal for waveform
generation, industrial process control, and signal analysis applica­tions in medical, process control, etc.

1.1 Features

The NuDAQ-2500 Series cards come with the following features:

®

/PXI architecture. With high-performance designs and

X 32-bit PCI/PCI Express/PXI bus, plug and play

X Up to 1 MS/s analog output rate and up to 400 KS/s analog

input rate

X Analog output / input channels

Z DAQ-/DAQe-/PXI-2502: 8 / 4

Z DAQ-/DAQe-/PXI-2501: 4 / 8

X Programmable bipolar/unipolar range for analog input chan-

nels and individual analog output channels

X Programmable internal/external reference for individual

analog output channels

X D/A FIFO size:

Z DAQ-/DAQe-/PXI-2502: 16K samples

Z DAQ-/DAQe-/PXI-2501: 8K samples

X A/D FIFO size: 2K samples

X Versatile trigger sources including software trigger, external

digital trigger, analog trigger, and System Synchronization
Interface (SSI) trigger

X A/D data transfer employing software polling and bus-mas-

tering DMA with scatter/gather

X D/A data transfer employing software update and bus-mas-

tering DMA with scatter/gather

X A/D trigger modes including post-trigger and delay-trigger

with re-trigger functionality

X D/A outputs with waveform generation capability

Introduction 1

X System Synchronization Interface (SSI)

X A/D and D/A fully auto-calibration

X Built-in programmable D/A external reference voltage com-

pensator

X Jumper-less operation and software-configurable

1.2 Applications

X Automotive testing

X Arbitrary waveform generator

X Transient signal measurement

X ATE

X Laboratory automation

X Biotech measurement

2Introduction

1.3 Specifications

Analog Output (AO)

X Channels:

Z DAQ-/DAQe-/PXI-2501: 4-CH

Z DAQ-/DAQe-/PXI-2502: 8-CH

X DA converter: AD7945

X Maximum update rate: 1 MS/s

X Resolution: 12-bit

X FIFO buffer size:

Z DAQ-/DAQe-/PXI-2501: 8K

Z DAQ-/DAQe-/PXI-2502: 16K

X Data transfer: Programmed I/O, and bus-mastering DMA

with scatter/gather

X Voltage reference: Internal 10 V or external up to ±10 V

X Output range:

Z Bipolar: ±10 V or ±external reference

Z Unipolar: 0 V to 10V or 0 V to external reference

X Settling time for –10 V to +10 V step: 2 µs

X Slew rate: 20 V/µs

X Output coupling: DC

X Protection: Short-circuit to ground

X Output impedance: 0.1 Ω max.

X Output current: ±5 mA max.

X Power-on state: 0V steady-state

X Power-on glitch: ±600 mV/500 µs

X Offset error:

Z Before calibration: ±80 mV max

Z After calibration: ±2 mV max

X Gain error:

Z Before calibration: ±0.8% of output max

Z After calibration: ±0.02% of output max

Introduction 3

Analog Input (AI)

X Channels:

Z DAQ-/PXI-2502: 4 single-ended

Z DAQ-/PXI-2501: 8 single-ended

X AD converter: LTC1416

X Max sampling rate: 400 KS/s

X Resolution: 14-bit

X FIFO buffer size: 2K samples

X Input range

Z Bipolar: ±10 V

Z Unipolar: 0 V to 10 V

X Over-voltage protection: Continuous, ±35 V maximum

X Input impedance: 1 GΩ / 6 pF

X Trigger modes: Pre-trigger, post-trigger, middle-trigger, and

delay trigger

X Data transfers: Programmed I/O and bus-mastering DMA

with scatter/gather

X Input coupling: DC

X Offset error:

Z Before calibration: ±40 mV max

Z After calibration: ±1 mV max

X Gain error:

Z Before calibration: ±0.4% of max output

Z After calibration: ±1 mV of max output

4Introduction

General Purpose Digital I/O (G. P. DIO)

X Channels: 24 programmable input/output

X Compatibility: TTL/CMOS

X Input voltage:

Z Logic Low: VIL=0.8 V max; IIL=0.2 mA max

Z High: VIH=2.0 V max; IIH=0.02 mA max

X Output voltage:

Z Low: VOL=0.5 V max; IOL=8 mA max
Z High: VOH=2.7 V min; IOH=400 µA

General Purpose Timer/ Counter (GPTC)

X Channels: Two up/down timer/counters

X Resolution: 16-bit

X Compatibility: TTL/CMOS

X Clock source: Internal or external

X Maximum source frequency: 10 MHz

Analog Trigger (A.Trig)

X Source: External analog trigger (EXTATRIG)

X Level: ±10V external

X Resolution: 8-bit

X Slope: Positive or negative (software selectable)

X Hysteresis: Programmable

X Bandwidth: 400 KHz

X External Analog Trigger Input (EXTATRIG)

X Impedance: 40 KΩ

X Coupling: DC

X Protection: Continuous ±35V maximum

Introduction 5

System Synchronous Interface (SSI)

X Trigger lines: 7

Calibration

X Recommended warm-up time: 15 minutes

X Onboard reference: 5.0 V

X Temperature coefficient: ±2 ppm/°C

X Long-term stability: 6 ppm/1000 hr

Physical

X Dimension: 175 mm by 107 mm

X I/O connector: 68-pin female mini-SCSI type

X Power Requirement: +5 VDC; 1.6 A typical

Operating Environment

X Ambient temperature: 0°C to 55°C

X Relative humidity: 10% to 90% non-condensing

Storage Environment

X Ambient temperature: -20 to 70°C

X Relative humidity: 5% to 95% non-condensing

6Introduction

1.4 Block Diagram

Figure 1-1: DAQ-/DAQe-/PXI-2502/2501 Block Diagram

Introduction 7

1.5 Software Support

ADLINK provides versatile software drivers and packages for
users’ different approach to building up a system. ADLINK not only
provides pro-gramming libraries such as DLL for most Windows­based 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.

Programming Library

For customers who are writing their own programs, we provide
function libraries for many different operating systems, including:

X D2K-DASK: Include device drivers and DLL for Windows

98/NT/2000/XP. DLL is binary compatible across Windows
98/NT/2000/XP. This means all applications developed with
D2K-DASK are compatible across Windows 98/NT/2000/
XP. The developing environment can be VB, VC++, Delphi,
BC5, or any Windows programming language that allows
calls to a DLL. The user’s guide and function reference
manual of D2K-DASK are in the CD. (\\Manual\Software
Package\D2K-DASK)

X D2K-DASK/X: Include device drivers and shared library for

Linux. The developing environment can be Gnu C/C++ or
any programming language that allows linking to a shared
library. The user's guide and function reference manual of
D2K-DASK/X are in the CD. (\\Manual\Software Pack­age\D2K-DASK-X.)

®

.

®

8Introduction

DAQ-LVIEW PnP: LabVIEW Driver

DAQ-LVIEW PnP contains the VIs, which are used to interface
with NI’s LabVIEW software package. The DAQ-LVIEW PnP sup­ports Windows 98/NT/2000/XP. The LabVIEW drivers is shipped
free with the card. You can install and use them without a license.
For detailed information about DAQ-LVIEW PnP, refer to the
user’s guide in the CD. (\\Manual\Software Package\DAQ-LVIEW
PnP)

D2K-OCX: ActiveX Controls

Customers who are familiar with ActiveX controls and VB/VC++
programming are suggested to use D2K-OCX ActiveX control
component libraries for developing applications. D2K-OCX is
designed for Windows 98/NT/2000/XP. For more details on D2K­OCX, refer to the user's guide in the CD. (\\Manual\Software Pack­age\D2K-OCX)

The above software drivers are shipped with the card. Refer to the
Software Installation Guide in the package to install these drivers.

In addition, ADLINK supplies ActiveX control software DAQBench.
DAQBench is a collection of ActiveX controls for measurement or
automation applications. With DAQBench, you can easily develop
custom user interfaces to display your data, analyze data you
acquired or received from other sources, or integrate with popular
applications or other data sources. For more detailed information
about DAQBench, refer to the user's guide in the CD. (\\Man­ual\Software Package\DAQBench Evaluation)

You can also get a free 4-hour evaluation version of DAQBench
from the CD. DAQBench is not free. Contact ADLINK or your
dealer to purchase the software license.

Introduction 9

10 Introduction

2 Installation

This chapter describes how to install the DAQ-/DAQe-/PXI-2502/
2501 card. The contents of the package and unpacking informa­tion that you should be aware of are outlined first.

The DAQ-/DAQe-/PXI-2502/2501 card performs an automatic
configuration of the IRQ and port address. You can use the
PCI_SCAN software utility to read the system configuration.

2.1 Package Contents

In addition to this User's Manual, the package includes the follow­ing items:

X DAQ-/DAQe-/PXI-2502/2501 multi-function data acquisi-

tion card

X ADLINK All-in-one CD

X 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.

Installation 11

2.2 Unpacking

Your DAQ-/DAQe-/PXI-2502/2501 card contains electro-static
sensitive components 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 package for obvious damages. Shipping and han­dling may cause damage to the card. 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.

You are now ready to install your DAQ-/DAQe-/PXI-2502/2501
card.

NOTE DO NOT APPLY POWER TO THE CARD IF IT HAS

BEEN DAMAGED.

12 Installation

2.3 Card Layout

DAQe-2502/2501

Figure 2-1: DAQe-2502/2501 Card Layout

Installation 13