Advantech PCI-1784 User Manual

This documentation and the software included with this product are copyrighted 2002 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. 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 which may result from its use.

Acknowledgments

PC-LabCard is a trademark of Advantech Co., Ltd. IBM and PC are trademarks of International Business Machines Corporation. MS-DOS, Windows, Microsoft Visual C++ and Visual BASIC are trademarks of Microsoft Corporation. Intel and Pentium are trademarks of Intel Corporation. Delphi and C++ Builder are trademarks of Inprise Corporation.

CE notification

The PCI-1784, developed by ADVANTECH CO., LTD., has passed the CE test for environmental specifications when shielded cables are used for external wiring. We recommend the use of shielded cables. This kind of cable is available from Advantech. Please contact your local supplier for ordering information.

On-line Technical Support

For technical support and service, please visit our support website at:

http://www.advantech.com/support

Note:

✎ Concerning the environment protection, we’d like to reduce the paper

using for the user’s manual. Starting the page of Appendix C, please find the PDF file of the CD-ROM.

Part No. 2003178400 1st Edition

Printed in Taiwan July 2002

Contents

1. INTRODUCTION.................................................................................................................. 1

1.1

FEATURES

1.2 A

PPLICATIONS

1.3 I

NST AL LATION GUIDE

1.4 S

OFTWARE OVERVIEW

1.5 D

EVICE DRIVERS PROGRAMMING ROADMAP

1.6 A

CCESSORIES

........................................................................................................................1

.................................................................................................................4

......................................................................................................4

.....................................................................................................6

..................................................................7

..................................................................................................................9

2. INSTALLATION.................................................................................................................. 10

2.1 U

NP ACKING

2.2 D

RIVER INSTALLATION

2.3 H

ARDWARE INST ALLATION

2.4 D

EVICE SETUP

...................................................................................................................10

..................................................................................................12

............................................................................................13

& C

ONFIGURATION

................................................................................16

3. SIGNAL CONNECTIONS.................................................................................................. 19

3.1

OVERVIEW

3.2 S

WITCH AND JUMPER SETTINGS

3.3 S

IGNAL CONNECTIONS

.....................................................................................................................19

....................................................................................19

..................................................................................................21

APPENDIX A. SPECIFICAT IONS........................................................................................ 25

APPENDIX B. BLOCK DIAGRAM......................................................................................27

APPENDIX C. REGISTER STRUCTURE AND FORMAT............................................... 29

C.1 O

VERVIEW

C.2 I/O P C.3 C C.4 C C.5 C C.6 I C.7 I C.8 C C.9 C

OUNTER

NTERRUPT CONTROL REGISTER

NTERRUPT STATUS REGISTER

LEAR INTERRUPT

....................................................................................................................29

ORT ADDRESS MAP

0/1/2/3 0/1/2/3 0/1/2/3

..............................................................................................29

— BASE+00/04/08/0CH ...................................................... 33

MODE

LATCH DATA

COMPARE DATA

— BASE+00/04/08/0CH.............................................35

— BASE+10/14/18/1CH........................................ 36

— BASE+20H........................................................... 37

— BASE+20H .............................................................. 38

— BASE+24H............................................................................... 39

— BASE+24H............................................................................... 40

C.10 S

OFTWARE LATCH

— BASE+28H.............................................................................. 41

C.11 B C.12 R C.13 D C.14 D

ID — BASE+28H..........................................................................................42

OARD

ESET COUNTER

IGITAL OUTPUT

IGITAL INPUT/OUTPUT

— BASE+2CH................................................................................ 43

— BASE+30H................................................................................ 44

— BASE+30H ..................................................................... 45

APPENDIX D. OPERATION ................................................................................................. 47

D.1 Q D.2 C D.3 D D.4 L D.5 C D.6 T D.7 I

UADRATURE ENCODER INTRODUCTION

OUNTER MODES

IGITAL NOISE FILTER

ATCH MODE

OUNTER RESET VALUE

IMER FUNCTION

NTERRUPT FUNCTION

.........................................................................................................48

..................................................................................................49

................................................................................................................50

................................................................................................51

..........................................................................................................51

..................................................................................................52

......................................................................47

1. Introduction

Thank you for buying the Advantech PCI-1784. The PCI-1784 is a 4axis quadrature encoder and counter card for PCI bus. This card includes four 32-bit quadruple AB phase encoder counters, 8-bit timer with multi range time-base selector and four isolated digital input and four isolated digital output. Its flexible interrupt sources are suitable for motor control and position monitoring.

The following sections of this chapter will provide further information about features of the multifunction cards, a Quick Start for installation, together with some brief information on software and accessories for the PCI-1784 card.

1.1 Features

❏ Four 32-bit up/down counters ❏ Single ended or differential inputs ❏ Pulse/direction and up/down counter ❏ x1, x2, x4 counts for each encoder cycle ❏ Optically isolated up to 2500 V

❏ 4-stage digital filter with selectable sampling rate ❏ On board 8-bit timer with wide range time-base selector ❏ Multiple interrupt sources for precision application ❏ Four isolated digital input ❏ Four isolated digital output with flexible function ❏ Board ID

The Advantech PCI-1784 offers the following main features:

Encoder Interface

Each channel includes a decoding circuit for incremental quadrature encoding. Inputs accept either single-ended or differential signals. Quadrature input works with or without an index, allowing linear or rotary encoder feedback.

Counters

The PCI-1784 has four independent 32-bit counters. The maximum quadrature input rate is 2 MHz, and the maximum input rate in counter mode is 8 MHz. You can individually configure each counter for quadrature decoding, pulse/direction counting or up/down counting.

Digital Input and Interrupts

The PCI-1784 provides four digital input channels. Each channel accepts digital input as an index input for a rotary encoder or as a home sensor input for a linear encoder. The card can generate an interrupt to the system based on a signal from its digital inputs, overflow/underflow and over-compare/under-compare of its counters, or on a programmed time interval. It can repeatedly generate interrupts at any time interval you specify, from 20 micro second to 51 second. These interrupts let you precisely monitor the speed of a control system.

Flexible Digital Output function

The PCI-1784 provides four digital output channels. Each channel accepts digital output as a normal TTL output for a rotary encoder, or as an indicated output with pulse/level mode for a linear encoder. The PCI1784 can generate an indicated output based on a signal from overcompare/under-compare of its counters. The pulse width of an indicated output is depends on the counter clock or clear interrupt.

Special Shielded Cable for Noise Reduction

The PCL-10137H shielded cable is specially designed for the PCI-1784 for reducing noise. Its wires are all twisted pairs, and the input signals and output signals are separately shielded, providing minimal cross talk between signals and the best protection against EMI/EMC problems.

Keeping the Counter Values and the Output Status after system reset

Users can independently use the four counter channels. When the system is hot reset (power not shut down), the PCI-1784 can either retain the last counter values and the output status, or return to its

default configuration, depending on jumper setting. This practical function eliminates danger caused by miss-operation during unexpected system reset.

Board ID

The PCI-1784 has a built-in DIP Switch that helps define each card’s ID when multiple PCI-1784 cards have been installed on the same PC chassis. The board ID setting function is very useful when users build their system with multiple PCI-1784 cards. With correct Board ID settings, you can easily identify and access each card during hardware configuration and software programming.

Note:

✎ For detailed specifications of the PCI-1784, please refer to Appendix A,

Specifications.

1.2 Applications

❏

Motion control

❏

Position sensing, monitoring and measuring

❏

Coordinate measuring machines

❏

X-Y table monitors

❏

Robotics

❏

Machine control

1.3 Installation Guide

Before you install your PCI-1784 card, please make sure you have the following necessary components:

❏

PCI-1784 DA&C card

❏

PCI-1784 User’s Manual

❏

Driver software Advantech DLL drivers

❏

Wiring cable PCL-10137H (option)

(included in the companion CD-ROM)

❏

Wiring board ADAM-3937 (option)

❏

Computer Personal computer or workstation with a

PCI-bus slot (running Windows 2000/95/98/ NT/ME/XP)

Some other optional components are also available for enhanced operation:

❏

Application software ActiveDAQ, GeniDAQ or other third-party

software packages

After you get the necessary components and maybe some of the accessories for enhanced operation of your Multifunction card, you can then begin the Installation procedures. Figure 1-1 on the next page provides a concise flow chart to give users a broad picture of the software and hardware installation procedures:

Install Driver from CD-ROM, then power-off P C

Install Hardware and power-on PC

Use driver utility to configure hardware

Use test utility to test hardware

Read examples & driver manual

Start to write your own application

Fig. 1-1 Installation Flow Chart

1.4 Software Overview

Advantech offers a rich set of DLL drivers, third-party driver support and application software to help fully exploit the functions of your PCI1784 card:

❏

Device Drivers (on the companion CD-ROM)

❏

LabVIEW driver*

❏

Advantech ActiveDAQ

❏

Advantech GeniDAQ

Programming choices for DA&C cards: You may use Advantech application software such as Advantech Device Drivers. On the other hand, advanced users are allowed another option for register-level programming, although not recommended due to its laborious and timeconsuming nature.

Device Drivers

The Advantech Device Drivers software is included on the companion CD-ROM at no extra charge. It also comes with all the Advantech DA&C cards. Advantech’s device drivers features a complete I/O function library to help boost your application performance. The Advantech Device Drivers for Windows 2000/95/98/ ME/NT/XP works seamlessly with development tools such as Visual C++, Visual Basic, Inprise C++ Builder and Inprise Delphi.

Register-level programming is reserved for experienced programmers who find it necessary to write codes directly at the level of device registers. Since register-level programming requires much effort and time, we recommend that you use the Advantech Device Drivers instead. However, if register-level programming is indispensable, you should refer to the relevant information in Appendix C, Register Structure and Format, or to the example codes included on the companion CD-ROM.

1.5 Device Drivers Programming Roadmap

This section will provide you a roadmap to demonstrate how to build an application from scratch using Advantech Device Drivers with your favorite development tools such as Visual C++, Visual Basic, Delphi and C++ Builder. The step-by-step instructions on how to build your own applications using each development tool will be given in the Device Drivers Manual. Moreover, a rich set of example source codes are also given for your reference.

Programming Tools

Programmers can develop application programs with their favorite development tools:

❏

Visual C++

❏

Visual Basic

❏

Delphi

❏

C++ Builder

For instructions on how to begin programming works in each development tool, Advantech offers a Tutorial Chapter in the Device Drivers Manual for your reference. Please refer to the corresponding sections in this chapter on the Device Drivers Manual to begin your programming efforts. You can also take a look at the example source codes provided for each programming tool, since they can get you very well-oriented.

The Device Drivers Manual can be found on the companion CD-ROM. Or if you have already installed the Device Drivers on your system, The Device Drivers Manual can be readily accessed through the Start button:

Start/Programs/Advantech Driver V2.0/Device Driver Manual

The example source codes could be found under the corresponding installation folder such as the default installation path:

\Program Files\Advantech\ADSAPI\Example s

For information about using other function groups or other development tools, please refer to the Creating Windows 95/NT/2000 Application with Device Drivers chapter and the Function Overview chapter on the Device Drivers Manual.

Programming with Device Drivers Function Library

Advantech Device Drivers offers a rich function library to be utilized in various application programs. This function library consists of numerous APIs that support many development tools, such as Visual C++, Visual Basic, Delphi and C++ Builder.

According to their specific functions or services, those APIs can be categorized into several function groups:

❏

Digital Input/Output Function Group

❏

Counter Function Group

❏

Port Function Group (direct I/O)

❏

Event Function Group

For the usage and parameters of each function, please refer to the Function Overview chapter in the Device Drivers Manual.

Troubleshooting Device Drivers Error

Driver functions will return a status code when they are called to perform a certain task for the application. When a function returns a code that is not zero, it means the function has failed to perform its designated function. To troubleshoot the Device Drivers error, you can pass the error code to DRV_GetErrorMessage function to return the error message. Or you can refer to the Device Drivers Error Codes Appendix in the Device Drivers Manaul for a detailed listing of the Error Code, Error ID and the Error Message.

1.6 Accessories

Advantech offers a complete set of accessory products to support the PCI-1784 card. These accessories include:

Wiring Cable

❏

PCL-10137H The PCL-10137H shielded cable is specially designed

Wiring Boards

❏

ADAM-3937 The ADAM-3937 is a 37-pin D-type wiring terminal

for PCI-1784 cards to provide high resistance to noise. To achieve a better signal quality, the signal wires are twisted in such a way as to form a “twisted-pair cable”, reducing cross-talk and noise from other signal sources. Furthermore, its analog and digital lines are separately sheathed and shielded to neutralize EMI/EMC problems.

module for DIN-rail mounting. This terminal module can be readily connected to the Advantech PC-Lab cards and allow easy yet reliable access to individual pin connections for the PCI-1784 card.

2. Installation

This chapter gives users a package item checklist, proper instructions about unpacking and step-by-step procedures for both driver and card installation.

2.1 Unpacking

After receiving your PCI-1784 package, please inspect its contents first. The package should contain the following items:

! PCI-1784 card ! Companion CD-ROM (DLL driver included) ! User’s Manual

The PCI-1784 card harbors certain electronic components vulnerable to electrostatic discharge (ESD). ESD could easily damage the integrated circuits and certain components if preventive measures are not carefully paid attention to.

Before removing the card from the antistatic plastic bag, you should take following precautions to ward off possible ESD damage:

" Touch the metal part of your computer chassis with your hand to

discharge static electricity accumulated on your body. Or one can also use a grounding strap.

" Touch the anti-static bag to a metal part of your computer chassis

before opening the bag.

" Take hold of the card only by the metal bracket when removing it

out of the bag.

After taking out the card, first you should:

" Inspect the card for any possible signs of external damage (loose or

damaged components, etc.). If the card is visibly damaged, please notify our service department or our local sales representative immediately. Avoid installing a damaged card into your system.

Also pay extra caution to the following aspects to ensure proper installation:

! Avoid physical contact with materials that could hold static

electricity such as plastic, vinyl and Styrofoam.

! Whenever you handle the card, grasp it only by its edges. DO NOT

TOUCH the exposed metal pins of the connector or the electronic components.

Note:

✎ Keep the anti-static bag for future use. You might need the original bag to

store the card if you have to remove the card from PC or transport it elsewhere.

2.2 Driver Installation

We recommend you to install the driver before you install the PCI1784 card into your system, since this will guarantee a smooth installation process.

The Advantech Device Drivers Setup program for the PCI-1784 card is included on the companion CD-ROM that is shipped with your DA&C card package. Please follow the steps below to install the driver software:

Step 1: Insert the companion CD-ROM into your CD-ROM drive.

Step 2: The Setup program will be launched automatically if you have

the autoplay function enabled on your system. When the Setup Program is launched, you’ll see the following Setup Screen.

Note:

✎ If the autoplay function is not enabled on your computer, use Windows

Explorer or Windows Run command to execute SETUP.EXE on the companion CD-ROM.

Fig. 2-1 The Setup Screen of Advantech Automation Software

Step 3: Select the Individual Drivers option.

Step 4: Select the specific device then just follow the installation

instructions step by step to complete your device driver setup.

Fig. 2-2 Different options for Driver Setup

For further information on driver-related issues, an online version of Device Drivers Manual is available by accessing the following path:

Start/Programs/Advantech Device Drivers V2.0/Device Driver Manual

2.3 Hardware Installation

Note:

✎ Make sure you have installed the driver first before you install the card

(please refer to 2.2 Driver Installation)

After the DLL driver installation is completed, you can now go on to install the PCI-1784 card in any PCI slot on your computer. But it is suggested that you should refer to the computer user manual or related documentation if you have any doubt. Please follow the steps below to install the card on your system.

Step 1: Turn off your computer and unplug the power cord and cables.

TURN OFF your computer before installing or removing any components on the computer.

Step 2: Remove the cover of your computer. Step 3: Remove the slot cover on the back panel of your computer. Step 4: Touch the metal part on the surface of your computer to

neutralize the static electricity that might be on your body.

Step 5: Insert the PCI-1784 card into a PCI slot. Hold the card only by

its edges and carefully align it with the slot. Insert the card firmly into place. Use of excessive force must be avoided, otherwise the card might be damaged.

Step 6: Fasten the bracket of the PCI card on the back panel rail of the

computer with screws.

Step 7: Connect appropriate accessories (37-pin cable, wiring terminals,

etc. if necessary) to the PCI card.

Step 8: Replace the cover of your computer chassis. Re-connect the

cables you removed in step 2.

Step 9: Plug in the power cord and turn on the computer.

Note:

✎ In case you installed the card without installing the DLL driver first,

Windows 95/98/ME will recognize your card as an “unknown device” after rebooting, and will prompt you to provide the necessary driver. You should ignore the prompting messages (just click the Cancel button) and set up the driver according to the steps described in 2.2 Driver Installation.

After the PCI-1784 card is installed, you can verify whether it is

properly installed on your system in the Device Manager:

1. Access the Device Manager through Control Panel/System/Device Manager.

2. The device name of the PCI-1784 should be listed on the Device Manager tab on the System Property Page.

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