United Electronic Industries DNR-AI-207, DNF-AI-207, DNA-AI-207 User Manual

DNx-AI-207

—

User Manual

16-Channel, 18-bit, Sequential Sampling, Differential

Analog Input Board with Cold-Junction Compensation

for the PowerDNA Cube and RACK Series Chassis

December 2017

PN Man-DNx-AI-207

© Copyright 1998-2017 United Electronic Industries, Inc. All rights reserved.

No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form
by any means, electronic, mechanical, by photocopying, recording, or otherwise without prior written
permission.

Information furnished in this manual is believed to be accurate and reliable. However , no responsibility
is assumed for its use, or for any infringement of patents or other rights of third parties that may result
from its use.

All product names listed are trademarks or trade names of their respective companies.

See the UEI website for complete terms and conditions of sale:
http://www.ueidaq.com/cms/terms-and-conditions/

Contacting United Electronic Industries

Mailing Address:

27 Renmar Avenue
Walpole, MA 02081
U.S.A.

For a list of our distributors and partners in the US and around the world, please contact a memb er of our
support team:

Support:

Telephone: [phone]
Fax: [phone]

Also see the FAQs and online “Live Help” feature on our web site.

Internet Support:

Support: [e-mail]
Website: www.ueidaq.com
FTP Site: ftp://ftp.ueidaq.com

Product Disclaimer:

WARNING!

DO NOT USE PRODUCTS SOLD BY UNITED ELECTRONIC INDUSTRIES, INC. AS CRITICAL
COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS.

Products sold by United Electronic Industries, Inc. are not authorized for use as critical components in
life support devices or systems. A critical component is any component of a life support device or
system whose failure to perform can be reasonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness. Any attempt to purchase any United Electronic
Industries, Inc. product for that purpose is null and void and United Electronic Industries Inc. accepts
no liability whatsoever in contract, tort, or otherwise whether or not resulting from our or our
employees' negligence or failure to detect an improper purchase.

Specifications in this document are subject to change without notice. Check with UEI for
current status.

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Table of Contents

Table of Contents

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

1.1 Organization of this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.2 The AI-207 Board Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2.1 ADC Input Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2.2 Compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2.3 Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2.4 Software Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.4 Specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.5 Device Architecture. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.5.1 Multiplexer & Programmable Gain. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.5.2 Maximum Sample Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

1.5.3 Autozero. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.5.4 Oversampling Engine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.5.5 Data Storage and Timestamping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

1.6 Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.7 Connectors and Wiring (pinout) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

1.7.1 Analog Input Ground Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

1.8 Data Representation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.8.1 CJC Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Chapter 2 Programming with the High-Level API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.1 About the High-level Framework. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.2 Creating a Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.3 Configuring Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.3.1 Voltage Measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.3.2 Thermocouple Measurement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.4 Configuring Autozero . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.5 Configuring the Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.6 Reading Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.7 Cleaning-up the Session. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Chapter 3 Programming with the Low-Level API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.1 About the Low-level API . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2 Low-level Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.3 Low-level Programming Techniques. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.3.1 Data Collection Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.4 Programming the AI-207 (Immediate Mode). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.4.1 Setting up Channel Configuration & Timestamps . . . . . . . . . . . . . . . . . . . . . 17

3.4.2 Configuring the Channel List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

3.4.3 Adding CJC Channel to the Channel Configuration. . . . . . . . . . . . . . . . . . . . 18

3.4.4 Setting up the AutoZero Feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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Table of Contents

3.4.5 Setting the Scan Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.4.6 Reading Data & Timestamps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.5 Programming Scan Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.6 Configuring Channels & Scan Rate in ACB Mode . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Appendix A. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

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List of Figures

Table of Figures

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

1-1 Block Diagram of DNx-AI-207 I/O Board.......................................................................5

1-2 Photo of DNA-AI-207 Analog Input Board.....................................................................8

1-3 Pinout of the DNx-AI-207 Analog Input Board...............................................................9

1-4 Recommended Ground Connections for Analog Inputs............... ... ... ... .... ... ...............10

December 2017 www.ueidaq.com

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Chapter 1 Introduction

This document outlines the feature set and use of the DNx-AI-207, 16-channel
analog input boards.

The following sections are provided in this chapter:

• Organization of this Manual (Section 1.1)

• The AI-207 Board Overview (Section 1.2)

• Features (Section 1.3)

• Specification (Section 1.4)

• Device Architecture (Section 1.5)

• Indicators (Section 1.6)

• Connectors and Wiring (pinout) (Section 1.7)

• Data Representation (Section 1.8)

DNx-AI-207 Analog Input Board

Chapter 1 1

Introduction

1.1 Organization of this Manual

This AI-207 User Manual is organized as follows:

• Introduction

Chapter 1 provides an overview of DNx-A I-207 features, device
architecture, connectivity, and logic.

• Programming with the High-Level API

Chapter 2 provides an overview of the how to create a session,
configure the session, and interpret results with the Framework API.

• Programming with the Low-Level API

Chapter 3 is an overview of low-level API commands for configuring and
using the AI-207 series board.

• Appendix A - Accessories

This appendix provides a list of accessories available for use with the
DNx-AI-207 board.

• Index

This is an alphabetical listing of the topics covered in this manual.

NOTE: A glossary of terms used with the PowerDNA Cube/RACK and I/O

boards can be viewed or downloaded from www.ueidaq.com.

DNx-AI-207 Analog Input Board

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Chapter 1 2

Introduction

Manual Conventions

To help you get the most out of this manual and our products, please note that
we use the following conventions:

Tips are designed to highlight quick ways to get the job done, or reveal
good ideas you might not discover on your own.

NOTE: Notes alert you to important information.

CAUTION! Caution advises you of precautions to take to avoid injury, data loss,
and damage to your boards or a system crash.

T ext formatted in bold typeface g enerally represents text that shou ld be entered
verbatim. For instance, it can represent a command, as in the following
example: “You can instruct users how to run setup using a command such as

setup.exe.”
Bold typeface will also represent field or button names, as in “Click Scan

Network.”

T ext forma tted in fixed typeface generally represents source code or other text
that should be entered verbatim into the source code, initialization, or other file.

Examples of Manual Conventions



Before plugging any I/O connector into the Cube or RACKtangle, be
sure to remove power from all field wiring. Failure to do so may
cause severe damage to the equipment.

Usage of Terms

Throughout this manual, the term “Cube” refers to either a PowerDNA Cube
product or to a PowerDNR RACKtangle
applicable. The term DNR is a specific reference to the RACKtangle, DNA to the

PowerDNA I/O Cube, and DNx to refer to both.

rack mounted system, whichever is

DNx-AI-207 Analog Input Board

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United Electronic Industries, Inc.

Chapter 1 3

Introduction

1.2 The AI-207 Board Overview

1.2.1 ADC Input

Configuration

The DNx-AI-207 is a 16-channel sequential sampling A/D board that features
18-bit resolution and 12 software-selectable input gain ranges.

DNA-AI-207, DNR-AI-207, and DNF-AI-207 boards are compatible with the UEI
Cube, RACKtangle, and FLATRACK chassis respectively. These board versions
are electronically identical and differ only in mounting hardware. The DNA
version is designed to stack in a Cube chassis. The DNR/F versions are
designed to plug into the backplane of a RACK chassis.

The DNx-AI-207 is pin compatible with UEI’s DNx-AI-217 board, which offers
more resolution, higher sample rates and simultaneously sampling inputs.

Each AI-207 channel is sequentially sampled with a maximum board throughput
of 16 kS/s (16 kHz). This configuration allows an application with a single
channel enabled to sample that channel at up to 16 kS/s. For applications
monitoring multiple channels, each additional channel must share the 16 kHz
maximum bandwidth (e.g. maximum of 1 kS/s for 16 channels enabled, 2 kS/s
for 8 channels enabled, etc.).

Additionally, the DNx-AI-207 provides a dedicated CJC channel that can be
used for reading from the built-in CJC sensor on UEI’s DNA-STP-AI-U or
AI-207TC terminal panels. When used with DNA-STP-AI-U or 207TC panel, the
DNx-AI-207 also features a direct connection to thermocouples (with open TC
detection). The software included will perform all required TC linearization and
CJC compensation and return data in °C or °F if desired.

Another key feature of the DNx-AI-207 is the oversampling engine, allowing the
board to automatically acquire as many samples as possible for the given gain/
speed and average them, which dramatically improves the noise floor.

1.2.2 Compatibility If input cross talk and channel settling time issues are a problem, even when

connected to high impedance signal sources, consider a pin-compatible
simultaneously sampling analog input board, such as the AI-217.

1.2.3 Environmental

Conditions

1.2.4 Software

Support

As with all UEI PowerDNA boards, the DNx-AI-207 can be operated in harsh
environments and has been tested at 5g vibration, 50g shock, -40 to +85°C
temperature. Each board provides 350 V

isolation between the board and its

rms

enclosure, or any other installed boards.

Software included with the DNx-AI-207 provides a comprehensive yet easy to
use API that supports all popular operating systems including Windows, Linux,
real-time operating systems such as QNX, RTX, VxWorks and more. The
UEIDAQ framework comes with bindings for various programming languages
such as C, C++, C#, VB.NET and scientific software packages such as
LabVIEW and Matlab, as well as supporting OPC servers.

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Number of channels: 16 fully dierential plus

1 single-ended dedicated CJC channel
Programmable DIO line 1 (external trigger)
ADC resolution 18 bits
Sampling rate 1 S/s - 16 kS/s per channel;

16 kS/s max aggregate for entire board
FIFO size 512 samples
Input bias current ±5nA max, ±0.5nA typical
Input impedance 10MΩ
Gains 1,2,4,8,10,20,40,80,100,200,400,800
Frontend bandwidth 48kHz @ -3dB
Common mode rejection 100dB typical
Oversampling ratio 2 to 8192, selected automatically
Accuracy ±287.59 μV at ±10 V input range.

1MFBTFTFFUIF%/Y"*%BUBTIFFUGPSEFUBJMFE

UBCMFTBOEHSBQIT

Isolation 350 Vrms
Overvoltage protection -40V to +55V
Power consumption 1.4W (stand-by); 2.2W max
Operating temp. (tested) -40°C to +85°C
Operating humidity 95%, non-condencing
Vibration IEC 60068-2-6

IEC 60068-2-64

5 g, 10-500 Hz, sinusoidal

5 g (rms), 10-500Hz, broadband random

Shock IEC 60068-2-27

50 g, 3 ms half sine, 18 shocks @ 6 orientations

30 g, 11 ms half sine, 18 shocks @ 6 orientations

MTBF 637,000 hours

Chapter 1 4

Introduction

1.3 Features The AI-207 analog input board offers the following features:

• 16 fully differential channels; additional dedicated CJC channel

• Maximum sampling rate of 1 kHz per channel when all channels are

enabled

• 18-bit resolution

• ±10 V input range

• Programmable gains: 1, 2, 4, 8, 10, 20, 40, 80, 100, 200, 400, 800

• Overvoltage protection (-40V to +55V)

• Dynamic autozero support

• Embedded averaging engine

1.4 Specification The technical specifications for the DNx-AI-207 are listed in Table 1-1 below.

Table 1-1 DNx-AI-207 Technical Specifications