ADLINK PCI-7258 User Manual

NuDAQ®

PCI-7258

PhotoMos Relay Cards

User’s Guide

Recycled Paper

©Copyright 2002 ADLINK Technology Inc.

All Rights Reserved.

Manual Rev: 1.04: October 18, 2002

Part NO: 50-11132-100

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,
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
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permission of the manufacturer.

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NuDAQ is 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.

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Table of Contents

Tables and Figures.........................................................iii

How to Use This Guide ..................................................iv

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

1.1 Features ............................................................................... 2

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

1.3 Specifications ....................................................................... 2

1.4 Software Support .................................................................4

1.4.1 Programming Library.........................................................4

1.4.2 PCIS-LVIEW: LabVIEW® Driver .......................................4

1.4.3 PCIS-VEE: VEE Driver......................................................5

1.4.4 PCIS-OCX: ActiveX Controls.............................................5

1.4.5 PCIS-DDE: DDE Server and InTouchTM............................5

1.4.6 PCIS-ISG: ISaGRAFTM driver ............................................5

1.4.7 PCIS-ICL: InControlTM Driver.............................................6

1.4.8 PCIS-OPC: OPC Server....................................................6

Getting Started.................................................................7

2.1 What you have .....................................................................7

2.2 Unpacking ............................................................................ 8

2.3 PCB Layout.......................................................................... 9

2.4 Board ID ............................................................................. 11

2.6 Connector Pin Assignments............................................... 12

2.7 Termination Board Connection .......................................... 13

Registers ........................................................................15

3.1 I/O Address Map ................................................................15

3.2 Relay Output Control Register ........................................... 16

3.3 Relay Output Read Back Register..................................... 17

3.4 Isolated Digital Input Register ............................................ 18

3.5 Clear IRQ register ..............................................................18

3.6 Handling PCI Controller Registers ..................................... 19

Table of Contents • i

Operation Theory...........................................................20

4.1 PhotoMos Relay Output..................................................... 20

4.2 Isolated Digital Input ..........................................................22

4.3 Interrupt Architecture .........................................................22

C/C++ DOS Libraries .....................................................23

5.1 Programming Guide........................................................... 23

5.1.1 Naming Convention.........................................................23

5.1.2 Data Types ......................................................................24

5.2 _7258 Initial........................................................................ 25

5.3 _7258_DO.......................................................................... 26

5.4 _7258_DO_Read_Back ..................................................... 26

5.5 _7258_DI............................................................................ 27

5.6 _7258_INT_Control............................................................ 27

5.9 _7258_CLR_IRQ ...............................................................28

5.10 _7258_GET_IRQ_Status ................................................... 28

Warranty Policy .............................................................29

ii • Table of Contents

Tables and Figures

Tables

Table 1. Board ID Setting Conditions ................................................. 11

Table 2. Registers Address Map ........................................................ 15

Table 3. Data Types and Range......................................................... 24

Figures

Figure 1: PCI-7258 PCB Layout ............................................................ 9

Figure 2: Board ID Dipswitch ............................................................... 11

Figure 3: Pin Assignment of PCI-7258 CN1......................................... 12

Figure 4: PhotoMos relay schematic.................................................... 20

Figure 5: PhotoMos relay wiring diagram ............................................ 21

Figure 6: Protection circuit for an Inductive load .................................. 21

Figure 7: Photo-Coupler ...................................................................... 22

Tables and Figures • iii

How to Use This Guide

This manual is intended to assist users to configure the PCI-7258 PhotoMos
Relay Card. It is divided into 5 chapters.

Chapter 1, “Introduction”

applications, and specifications.

Chapter 2, “Getting Started”

The Board ID switch and connectors’ pin assignments are
also described.

Chapter3, “Registers”

PCI-7258. The information is important for programmers who
want to control the hardware with low level programming
languages.

Chapter 4, “Operation Theory”

7258. The PhotoMos relay and isolated digital input are
introduced. Some programming concepts are also described.

Chapter 5, “C/C++ libraries”

software libraries of the PCI-7258. This chapter also
outlines basic requirements for programming your own
software application.

, gives an overview of the product features,

, describes how to install the PCI-7258.

, describes the registers that are available to the

, describes how to operate the PCI-

, describes the software utility and the

iv • How to Use This Guide

1

Introduction

The PCI-7258 PhotoMos relay card is a basic Digital I/O card for PCI bus
computers used in industrial applications.

This PCI-7258 provides 32 PhotoMos relay actuators and 2 opto-isolated
digital inputs. All relays are of Form A type and is very suited for constant
ON/OFF control devices.

Other useful feature includes the Board ID. It is convenient for board
identification when two or more PCI-7258 cards are in a system. All I/O
signals are routed via a 68-pin SCSI connector.

Introduction • 1

1.1 Features

The PCI-7258 PhotoMos relay actuator and D/I Card provides the following
advanced features:

• 32-bit PCI-Bus, Plug and Play

• 32 PhotoMos relay actuator outputs

• 2 opto-isolated digital inputs

• On-board relay driving circuits

• Digital input channel 0 & 1 interrupt

• Board ID

1.2 Applications

• Industrial ON/OFF control

• Energy management

• Laboratory automation

• Industrial automation

• Switch contact status sensing, limit switch monitoring,

• Integrate with A/D and D/A cards to implement a data acquisition & control

system

1.3 Specifications

Digital input

♦

• Input channels: 2

• Photo-coupler: PC-3H4

• Input current:

3 10 mA rated

3 50 mA max. for isolated input

2 • Introduction

• Input Voltage:

3 Up-to 24 V

3 Logic Low: 0~2V

3 Logic High 5~24V

• Input impedance: 2.4 KΩ / 0.5W

• Isolated voltage: 2,500 V

Relay Output

♦

• Output channels: 32

• Relay type: 32 SPST (Form A)

• Load voltage (peak AC): 350V

• Continuous load current (peak AC): 0.12A

• Peak load current: 0.3A

• I/O isolation voltage: 1,500 V AC

• Output turn on resistance (typical): 17Ω

• Output off state leakage current (Maximum): 1μA

• Turn on time (typical): 0.23 ms

• Turn off time (typical): 0.04 ms

or 24V

DC

AC

channel-to-system

rms

General Specifications

♦

• Bus: 32-bit PCI bus

• Dimension: 174 mm x 106 mm, standard PCI half size

• Operating temperature: 0 ~ 60 °C

• Storage temperature: -20 °C ~ 80 °C

• Humidity: 5 to 95% non-condensing

Power Consumption

♦

• +5V @ 380 mA (All relays energized)

Introduction • 3

1.4 Software Support

ADLINK provides versatile software drivers and packages for users’ different
approach to building a system. ADLINK not only provides programming
libraries such as DLL for most Windows based systems, but also provide

drivers for other software packages such as LabVIEW®, VEETM, InTouchTM,
InControl

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:

The above software drivers are shipped with the board. Please refer to the
“Software Installation Guide” for installation procedures.

TM

, ISaGRAFTM, and so on.

• DOS Library: Borland C/C++ and Microsoft C++. Functional

descriptions are included in this user’s guide

• PCIS-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. That means all
applications developed with PCIS-DASK are compatible across
Windows 98, Windows NT and Windows 2000. 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 PCIS-DASK are in the CD. Please
refer the PDF manual files under \\Manual_PDF\Software\PCIS­DASK

1.4.2 PCIS-LVIEW: LabVIEW® Driver

PCIS-LVIEW contains the VIs, which is used to interface with NI’s LabVIEW®
software package. The PCIS-LVIEW supports Windows 95/98/NT/2000. The
LabVIEW
them without a license. For more information about PCIS-LVIEW, please
refer to the user’s guide in the CD. (\\Manual_PDF\Software\PCIS-LVIEW).

4 • Introduction

®

drivers is shipped free with the board. You can install and use