ADLINK PCI-7256 User Manual

NuDAQ®
PCI-7256

Latching Relay Actuator &

Isolated D/I Cards

User’s Guide

Recycled Paper

©Copyright 2001 ADLINK Technology Inc.

All Rights Reserved.

Manual Rev : 1.00 December 11, 2001

Part NO : 50-11127-100

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
mechanical, electronic, or other means in any form without prior written
permission of the manufacturer.

Trademarks

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.

Getting service from ADLINK

♦ Customer Satisfaction is always the most important thing to ADLINK. If you

need any help or service, please contact us.

ADLINK Technology Inc.

Web Site http://www.adlinktech.com
Sales & Service
Technical NuDAQ + USBDAQ [e-mail]
Support Automation [e-mail]
NuIPC [e-mail]
NuPRO/EBC [e-mail]
TEL [phone] FAX [phone]

Address

♦ Please inform or FAX us of your detailed information for a prompt,

satisfactory and constant service.

Company/Organization
Contact Person
E-mail Address
Address
Country
TEL FAX
Web Site

Product Model

Environment to Use

Challenge Description

[e-mail]

9F, No. 166, Jian Yi Road, Chungho City, Taipei, 235
Taiwan

Detailed Company Information

Questions

OS
Computer Brand
M/B: CPU:
Chipset: BIOS:
Video Card:
Network Interface Card:
Other:

Suggestions to
ADLINK

Table of Contents

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

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

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

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

1.4 Software Support.......................................................................... 5

1.4.1 Programming Library ................................................................. 5

1.4.2 PCIS-LVIEW: LabVIEW® Driver ................................................ 5

1.4.3 PCIS-VEE: VEE Driver .............................................................. 6

1.4.4 PCIS-OCX: ActiveX Controls ..................................................... 6

1.4.5 PCIS-DDE: DDE Server and InTouchTM.................................... 6

1.4.6 PCIS-ISG: ISaGRAFTM driver .................................................... 6

1.4.7 PCIS-ICL: InControlTM Driver ..................................................... 7

1.4.8 PCIS-OPC: OPC Server ............................................................ 7

Chapter 2 Installation ......................................................... 8

2.1 What you have ............................................................................. 8

2.2 Unpacking .................................................................................... 9

2.3 PCB Layout ................................................................................ 10

2.4 Jumper Setting ........................................................................... 11

2.4 External LED connection............................................................ 12

2.5 Board ID ..................................................................................... 13

2.6 Connector Pin Assignments....................................................... 14

2.7 Termination Board Connection .................................................. 15

Chapter 3 Register Format .............................................. 16

3.1 I/O Address Map ........................................................................ 16

3.2 Relay Output Control Register ................................................... 17

3.3 Relay Output Read Back Register ............................................. 18

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

3.5 COS Setup Register................................................................... 19

3.6 COS Latch Register ................................................................... 19

3.7 Interrupt Control Register........................................................... 20

3.8 Interrupt Status Register ............................................................ 22

3.9 Handling PCI Controller Registers .............................................22

Chapter 4 Operation Theorem ......................................... 24

4.1 Latching Relay Output................................................................ 24

Table of Contents • i

4.2 Isolated Digital Input................................................................... 26

4.3 Interrupt Architecture.................................................................. 27

4.4 Change of State(COS) Interrupt................................................. 27

Chapter 5 C/C++ DOS Libraries....................................... 28

5.1 Programming Guide ................................................................... 28

5.1.1 Naming Convention .................................................................28

5.1.2 Data Types ..............................................................................29

5.2 _7256 Initial ................................................................................ 30

5.3 _7256_DO .................................................................................. 31

5.4 _7256_DO_Read_Back ............................................................. 31

5.5 _7256_DI.................................................................................... 32

5.6 _7256_COS_Channel ................................................................ 33

5.7 _7256_COS_Latch..................................................................... 33

5.8 _7256_INT_Control.................................................................... 34

5.9 _7256_CLR_IRQ........................................................................ 35

5.10 _7256_GET_IRQ_Status ........................................................... 35

Appendix A. Relay Contact Protection Circuits...... 36

Warranty Policy ................................................................ 39

ii • Table of Contents

How to Use This Guide

This manual is for helping users to manipulate the PCI-7256. It is divided into
5 chapters.

Chapter 1, Introduction

•
applications, and specifications.

Chapter 2, Installation

•
layout of PCI-7256 is shown, and jumper setting for
digital input filter, external LED connection and Board ID
switch are specified. The connectors’ pin assignments
are also described.

Chapter3, Register Format

•
and structure of the PCI-7256. This information is very
important for the programmers who want to control the
hardware by low level programming.

Chapter 4, Operation Theorem

•

7256. The latching relay, isolated digital input and
change-of-state functions are introduced. Some
programming concepts are also described.

Chapter 5, C/C++ libraries

•

library of PCI-7256, and also describes how to meet your
requirements and help you to program your own
software application.

, gives an overview of the product features,

, describes how to install the PCI-7256. The

, describes the details of register format

, describes how to operate the PCI-

, describes the software utility and the

Appendix A, relay Contact Protection Circuits,

•

information about relay contact protection circuits.

How to Use This Guide • iii

provides the

1

Introduction

The PCI-7256 Latching Relay Actuator and Isolated D/I card is a basic
Digital I/O card for PCI bus computer in industrial applications.

This PCI-7256 provide 16 latching relay actuators and 16 opto-isolated digital
inputs. All relays are Form C type. They are very suitable for ON/OFF control
devices.

All of the digital input channels are identical non-polarity opto-isolated, each
of them can be switchable by using RC filter or non-RC filter. All channels are
isolated and suitable for collecting digital inputs in noisy environments. The
function of “Change-of-State” (COS) interrupt is provided. It means when any
of these digital inputs changes its state, an interrupt will be generated for
user to handle this external event.

Using latching relays, the PCI-7256 has the advantage of power saving. The
status of each latching relay output is reflected by a LED. When the latching
relay is in SET condition, its corresponding in-board LED will turn ON,
otherwise it is OFF.

Another useful feature is Board ID. It’s convenient for user to identify a
specified card by setting up a switch when user have two or more PCI-7256
cards in one system.

The I/O signals are via a 68-pin SCSI connector.

Introduction • 1

1.1 Features

The PCI-7256 Latching Relay Actuator and D/I Card provides the following
advanced features:

• 32-bit PCI-Bus, Plug and Play

• 16 latching relay actuator outputs, the output status will remain when

power-off

• 16 opto-isolated digital inputs for PCI-7256

• LED indicators to show the status of relays and can be read back

• Jumper selectable AC-filtered/non-AC-filtered input signals

• On-board relay driving circuits

• Change-of-State (COS) detection for digital input channels

• Digital input channel 0 & 1 interrupt

• Dry contact input available

• Board ID

1.2 Applications

• Industrial ON/OFF control

• External high power relay driving, Signal switching

• Laboratory automation

• Industrial automation

• Switch contact status sensing, limit switch monitoring,

• Cooperating with A/D and D/A cards to implement a data acquisition

& control system

2 • Introduction

1.3 Specifications

Digital input

♦

Input channels 16
Photo-coupler PC-3H4

Input current

Input Voltage

Input impedance
Input mode Isolation AC-filter/ Non-AC-filter
Isolated voltage 2,500 Vrms channel-to-system

Relay Output

♦

Output channels 16
Relay type 16 DPDT ( Form C )

Contact rating

Breakdown voltage 1000 V
Release time 3 msec
Operate time 3 msec
Contact resistance
Insulation resistance

Life expectancy

(min. operations)

Vibration Resistance

LED indicators

Power supply of Relay + 5V from the PCI-Bus

10 mA rated
50 mA max. for isolated input
Up-to 24 V

or 24V

DC

AC

Logic Low: 0~2V
Logic High 5~24V

4.7 KΩ

, 0.5 A

125V

AC

, 1A

30V

DC

rms

60mΩ
1000M Ω min. (at 500 V

5

> 2 X 10

> 10

176.4m/s

times at 1A 30VDC

5

times at 0.5A 125VAC

2

(18G), 10 to 55Hz

)

DC

at double amplitude of 3mm

Monitor SET/RESET status of each

relay; external LED connectors could

be applied

Isolated +5V Power Supply

♦

Output Voltage +5V
Output Current

General Specifications

♦

Dimension

Bus
Operating temperature
Storage temperature

170mA max. (@ 40°C)

174 mm x 106 mm, standard PCI half
size

32-bit PCI bus
0 ~ 60 °C

-20 °C ~ 80 °C

Introduction • 3

Humidity

Power Consumption

♦

PCI-7256

5 to 95% non-condensing

+5V @ 340 mA (No relays energized)
980mA maximum when all relays are active
simultaneously

4 • Introduction

1.4 Software Support

ADLINK provides versatile software drivers and packages for users’ different
approach to built-up a system. We not only provide programming library
such as DLL for many Windows systems, but also provide drivers for many

software packages such as LabVIEW®, VEETM, InTouchTM, InControlTM,
ISaGRAF

All the software options are included in the ADLINK CD. The non-free
software drivers are protected with serial licensed code. Without the software
serial number, you can still install them and run the demo version for two
hours for demonstration purpose. Please contact ADLINK or the dealer to
purchase the software license serial code.

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” to install these drivers.

TM

, and so on.

• DOS Library: Borland C/C++ and, the functions 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 are used to interface with NI’s
LabVIEW
95/98/NT/2000. The LabVIEW
You can install and use them without license. For detail information about

PCIS-LVIEW, please refer to the user’s guide in the CD.

(\Manual_PDF\Software\PCIS-LVIEW)

®

software package. The PCIS-LVIEW supports Windows

®

drivers are free and shipped with the board.

Introduction • 5

1.4.3 PCIS-VEE: VEE Driver

The PCIS-VEE includes the user objects, which are used to interface with
VEE software package. PCIS-VEE supports Windows 95/98/NT/2000. The
VEE drivers are free and shipped with the board. You can install and use
them without license. For detail information about PCIS-VEE, please refer to
the user’s guide in the CD.

(\Manual_PDF\Software\PCIS-VEE)

1.4.4 PCIS-OCX: ActiveX Controls

We suggest the customers who are familiar with ActiveX controls and
VB/VC++ programming use PCIS-OCX ActiveX control components library
for developing applications. PCIS-OCX is designed for Windows 98/NT/2000.
For more detailed information about PCIS-OCX, please refer to the user's
guide in the CD.

(\Manual_PDF\Software\PCIS-OCX\PCIS-OCX.PDF

The above software drivers are shipped with the board. Please refer to the
“Software Installation Guide” in the package to install these drivers.

Also ADLINK supplies an 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 some other sources,
and integrate with popular applications or data sources. For more detailed
information about DAQBench, please refer to the user's guide in the CD.

(\Manual_PDF\Software\DAQBench\DAQBenchManual.PDF

)

)

You can also get a free 4-hour evaluation version of DAQBench from the CD.

DAQBench is charged software. Please contact ADLINK dealer or ADLINK to
purchase the software license.

1.4.5 PCIS-DDE: DDE Server and InTouchTM

DDE stands for Dynamic Data Exchange specifications. The PCIS-DDE
includes the PCI cards’ DDE server. The PCIS-DDE server is free and
included in the ADLINK CD. The DDE server can be used conjunction with
any DDE client under Windows 98/NT/2000.

1.4.6 PCIS-ISG: ISaGRAFTM driver

The ISaGRAF WorkBench is an IEC1131-3 SoftPLC control program
development environment. The PCIS-ISG includes ADLINK products’ target

6 • Introduction

drivers for ISaGRAF under Windows NT environment. The PCIS-ISG is
included in the ADLINK CD. It needs license. Please contact ADLINK or
dealer to purchase the license.

1.4.7 PCIS-ICL: InControlTM Driver

PCIS-ICL is the InControl driver which support the Windows NT. The PCIS­ICL is included in the ADLINK CD. It needs license. Please contact ADLINK
or dealer to purchase the license.

1.4.8 PCIS-OPC: OPC Server

PCIS-OPC is an OPC server, which can link with the OPC clients. There are
many software packages on the market can provide the OPC clients now.
The PCIS-OPC supports the Windows 98, NT, and 2000. Please contact
ADLINK or dealer to purchase the license.

Introduction • 7