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User Manual

iDAQ-817, iDAQ-821

Analog Input and output

Industrial DAQ Modules

iDAQ-817_821 User Manual ii

The documentation and the software included with this product are copyrighted 2021

by Advantech Co., Ltd. All rights are reserved. Advantech Co., Ltd. reserves the right

to make improvements in the products described in this manual at any time without

notice. No part of this manual may be reproduced, copied, translated, or transmitted

in any form or by any means without the prior written permission of Advantech Co.,

Ltd. The information provided in this manual is intended to be accurate and reliable.

However, Advantech Co., Ltd. assumes no responsibility for its use, nor for any

infringements of the rights of third parties that may result from its use.

Acknowledgments

Intel and Pentium are trademarks of Intel Corporation.

Microsoft Windows and MS-DOS are registered trademarks of Microsoft Corp.

All other product names or trademarks are properties of their respective owners.

Product Warranty (2 years)

Advantech warrants the original purchaser that each of its products will be free from

defects in materials and workmanship for two years from the date of purchase.

This warranty does not apply to any products that have been repaired or altered by

persons other than repair personnel authorized by Advantech, or products that have

been subject to misuse, abuse, accident, or improper installation. Advantech

assumes no liability under the terms of this warranty as a consequence of such

events.

Because of Advantech’s high quality-control standards and rigorous testing, most

customers never need to use our repair service. If an Advantech product is defective,

it will be repaired or replaced free of charge during the warranty period. For out-of-

warranty repairs, customers will be billed according to the cost of replacement mate-

rials, service time, and freight. Please consult your dealer for more details.

If you believe your product is defective, follow the steps outlined below.

1. Collect all the information about the problem encountered. (For example, CPU

speed, Advantech products used, other hardware and software used, etc.) Note

anything abnormal and list any onscreen messages displayed when the prob-

lem occurs.

2. Call your dealer and describe the problem. Please have your manual, product,

and any helpful information readily available.

3. If your product is diagnosed as defective, obtain a return merchandise authori-

zation (RMA) number from your dealer. This allows us to process your return

more quickly.

4. Carefully pack the defective product, a completed Repair and Replacement

Order Card, and a proof of purchase date (such as a photocopy of your sales

receipt) into a shippable container. Products returned without a proof of pur-

chase date are not eligible for warranty service.

5. Write the RMA number clearly on the outside of the package and ship the pack-

age prepaid to your dealer.

Part No. 2001081700 Edition 1

Printed in China November 2021

iii iDAQ-817_821 User Manual

Declaration of Conformity

This product has passed the CE test for environmental specifications when shielded

cables are used for external wiring. We recommend the use of shielded cables. This

type of cable is available from Advantech. Please contact your local supplier for

ordering information.

Test conditions for passing also include the equipment being operated within an

industrial enclosure. In order to protect the product from damage caused by electro-

static discharge (ESD) and EMI leakage, we strongly recommend the use of CE-

compliant industrial enclosure products.

FCC Class A

This equipment has been tested and found to comply with the limits for a Class A dig-

ital device, pursuant to part 15 of the FCC Rules. These limits are designed to pro-

vide reasonable protection against harmful interference when the equipment is

operated in a commercial environment. This equipment generates, uses, and can

radiate radio frequency energy and, if not installed and used in accordance with the

instruction manual, may cause harmful interference to radio communications. Opera-

tion of this equipment in a residential area is likely to cause harmful interference. In

this event, users are required to correct the interference at their own expense.

Technical Support and Assistance

1. Visit the Advantech website at www.advantech.com/support to obtain the latest

product information.

2. Contact your distributor, sales representative, or Advantech's customer service

center for technical support if you need additional assistance. Please have the

following information ready before calling:

–Product name and serial number

–Description of your peripheral attachments

–Description of your software (operating system, version, application software,

etc.)

–A complete description of the problem

–The exact wording of any error messages

vii iDAQ-817_821 User Manual

Safety Precautions - Static Electricity

Follow these simple precautions to protect yourself from harm and the products from

damage.

To avoid electrical shock, always disconnect the power from the PC chassis

before manual handling. Do not touch any components on the CPU card or

other cards while the PC is powered on.

Disconnect the power before making any configuration changes. A sudden rush

of power after connecting a jumper or installing a card may damage sensitive

electronic components.

ix iDAQ-817_821 User Manual

Contents

Chapter 1 Start Using iDAQ-817/821 ...................1

1.1 Overview ................................................................................................... 2

1.2 Product Overview...................................................................................... 2

Figure 1.1 Overview of iDAQ-817................................................ 2

Figure 1.2 Overview of iDAQ-821................................................ 2

1.3 Product Features....................................................................................... 3

1.3.1 Power Input................................................................................... 3

1.3.2 BoardID......................................................................................... 3

1.3.3 Plug and Play Device.................................................................... 3

1.4 Driver Installation ...................................................................................... 3

Figure 1.3 XNavi Installation Interface......................................... 3

1.5 Software Utility .......................................................................................... 4

1.6 Software Development Using DAQNavi SDK ........................................... 4

1.7 Application Software DAQNavi MCM........................................................ 4

1.8 FPGA Code Update .................................................................................. 4

1.9 Ordering Information ................................................................................. 4

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

2.1 Initial Unpacking Check............................................................................. 6

2.2 Installation ................................................................................................. 6

Figure 2.1 iDAQ Module Install into iDAQ Chassis...................... 6

2.3 Signal Connection and Pin Assignment .................................................... 7

2.3.1 Analog Input Connection............................................................... 7

Figure 2.2 Analog input signal connection................................... 7

Figure 2.3 Common-mode input voltage. .................................... 7

2.3.2 Analog Output Connection............................................................ 8

Figure 2.4 Analog output signal connection................................. 8

2.3.3 Pin Assignment ............................................................................. 9

Figure 2.5 Pin Assignment for iDAQ-817..................................... 9

Table 2.1: Pin Assignment for iDAQ-817..................................... 9

Figure 2.6 Pin Assignment for iDAQ-821..................................... 9

Table 2.2: Pin Assignment for iDAQ-821..................................... 9

Chapter 3 Function Details.................................11

3.1 Function Details ...................................................................................... 12

3.2 Analog Input ............................................................................................ 12

3.2.1 Instant Analog Input Acquisition.................................................. 12

Figure 3.1 Instant analog input acquisition. ............................... 12

3.2.2 Buffered Analog Input Acquisition............................................... 12

Figure 3.2 Buffered analog input acquisition. ............................ 13

Figure 3.3 Start and stop triggers of the analog input acquisition..

Figure 3.4 Start and stop of the analog input acquisition with de-

lay. ............................................................................ 14

3.2.3 High Common-Mode Amplifier.................................................... 14

Figure 3.5 Common-mode input voltage. .................................. 14

3.2.4 Analog Input Low-pass Filter ...................................................... 14

3.2.5 Analog Multiplexer ...................................................................... 15

3.2.6 Analog Input Isolation ................................................................. 15

3.3 Analog Output ......................................................................................... 15

3.3.1 Static Analog Output Update ...................................................... 15

iDAQ-817_821 User Manual 2

1.1 Overview

This chapter provides an overview of Advantech industrial data acquisition (iDAQ)

modules for iDAQ-817 and iDAQ-821, ranging the product lineups, features and

accessories.

iDAQ-817 is an 8-channel analog input module. It features a maximum sampling rate

of 200kS/s multiplexing, high common-mode voltage 275 V DC, input isolation, and

low-pass filter. It’s suitable for generic test and measurement use.

iDAQ-821 is a 4-channel analog output module. It features maximum update rates of

10 kS/s/ch, output isolation and analog output fail-safe. It’s suitable for most basic DC

output and device control scenarios.

1.2 Product Overview

iDAQ-817

Figure 1.1 Overview of iDAQ-817

iDAQ-821

Figure 1.2 Overview of iDAQ-821

9 iDAQ-817_821 User Manual

Chapter 2 Installation Guide

2.3.3 Pin Assignment

iDAQ-817

Figure 2.5 Pin Assignment for iDAQ-817

iDAQ-821

Figure 2.6 Pin Assignment for iDAQ-821

Table 2.1: Pin Assignment for iDAQ-817

Pin Name Description Pin Number

AI<n>+ Analog input n positive terminal, n = 0~7 2, 4, 6, … , 18

AI<n>- Analog input n negative terminal, n = 0~7 3, 5, 7, … , 19

GND Ground 1, 10, 11, 20

Table 2.2: Pin Assignment for iDAQ-821

Pin Name Description Pin Number

AO0 Analog output 0 2

AO1 Analog output 1 4

AO2 Analog output 2 7

AO3 Analog output 3 9

GND Ground 1, 3, 5, 6, 8, 10

Chapter 3

3Function Details

iDAQ-817_821 User Manual 14

Figure 3.4 Start and stop of the analog input acquisition with delay.

Buffered analog input acquisition has several advantages over instant analog input

acquisition:

The start and stop time of acquisition (or duration of the acquisition) can be pre-

cisely controlled by hardware trigger signals.

The ADC conversion rate is configurable and the sample rate can be much

higher by using hardware sample clock signals.

Time between samples is deterministic.

3.2.3 High Common-Mode Amplifier

Each channel is equipped with a high common-mode voltage amplifier that can with-

stand high common-mode input voltage. Common-mode input voltage (VCM) is the

ground voltage difference between the source and the device as shown in Figure 3.5.

Figure 3.5 Common-mode input voltage.

This is suitable for applications which measure voltages with high common-modes

such as battery cell voltage monitoring, high-voltage current sensing, or power-sup-

ply current monitoring. For other analog input measurement devices without this fea-

ture, the device will be damaged due to the high common-mode input voltage. Refer

to the device specifications for the maximum allowable common-mode voltage.

3.2.4 Analog Input Low-pass Filter

The low-pass filter removes high frequency noise of the input signal and the noise

that is added by the high common-mode voltage amplifier. It can also act as an anti-

aliasing filter which avoids alias generation due to ADC conversion.

iDAQ-817_821 User Manual 16

Figure 3.7 Buffered analog output waveform generation

The start and stop of the generation are controlled by the start trigger and stop trig-

ger, respectively. When configuration is completed, the acquisition engine of the

iDAQ chassis is at standby state. After receiving a start trigger, generation becomes

active and each rising edge of the sample clock converts one analog output sample.

The generation active period lasts until a stop trigger is received, which ends the gen-

eration. This is shown in Figure 3.8.

Figure 3.8 Start and stop of the analog output waveform generation

The start and stop of generation can also be delayed in number of samples after

receiving the corresponding trigger signal. As shown in Figure 3.9, the start of gener-

ation is delayed by 3 samples after receiving a start trigger, and the stop of genera-

tion is delayed by 2 samples after receiving a stop trigger.

Figure 3.9 Start and stop of the analog output waveform generation with delay.

Produktspecifikationer

Varumärke:	Advantech
Kategori:	Inte kategoriserad
Modell:	IDAQ-817-AE

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