ADLINK Technology cPCI-7252 Manuel utilisateur
cPCI-7252
PCI-7250/7251
Relay Actuator &
Isolated D/I Cards
@Copyright 1997~1999 ADLink Technology Inc.
All Rights Reserved.
Manual Rev. 2.30: December 9, 1998
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, NuIPC, cPCI-7252 and PCI-7250/7251 are registered
trademarks of ADLink Inc. Other product names mentioned herein are
used for identification purposes only and may be trademarks and/or
registered trademarks of their respective companies.
Contents •• i
CONTENTS
CONTENTS...................................................................................................I
HOW TO USE THIS GUIDE..................................................................... III
CHAPTER 1 INTRODUCTION ..................................................................1
1.1 FEATURES..........................................................................................2
1.2 APPLICATIONS ...................................................................................2
1.3 SPECIFICATIONS.................................................................................2
CHAPTER 2 INSTALLATION....................................................................5
2.1 WHAT YOU HAVE ..............................................................................5
2.2 UNPACKING.......................................................................................5
2.3 DEVICE INSTALLATION FOR WINDOWS 95 ...........................................6
2.4 PCB LAYOUT ....................................................................................8
2.5 INPUT SIGNAL SETTING....................................................................10
2.6 CONNECTOR PIN ASSIGNMENTS........................................................11
2.6.1 PCI-7250/51 Pin assignments........................................................11
2.6.2 cPCI-7252 Pin assignments ...........................................................12
2.7 PCI-7250 AND PCI-7251 CONNECTION............................................13
CHAPTER 3 REGISTER FORMAT.........................................................15
3.1 I/O PORT BASE ADDRESS.................................................................15
3.2 CONTROL AND STATUS REGISTERS MAP............................................16
3.3 RELAY OUTPUT AND READBACK REGISTERS......................................16
3.4 ISOLATION INPUT REGISTERS............................................................17
CHAPTER 4 OPERATION THEOREM...................................................18
4.1 USING RELAY OUTPUT .....................................................................18
4.2 USING ISOLATED INPUT....................................................................19
CHAPTER 5 C/C++ LIBRARIES..............................................................21
5.1 INSTALLATION .....................................................................................21
5.1.1 Installation..................................................................................21
ii •• Contents
5.2 RUNNING TESTING UTILITY (7250UTIL.EXE) ......................................23
5.3 SOFTWARE DRIVER NAMING CONVENTION............................................23
5.4 _7250_INITIAL/_7252_INITIAL ........................................................24
5.5 _7250_DI, _7252_DI......................................................................25
5.6 _7250_DO, _7252_DO...................................................................26
5.7 _7250_DO_READ_BACK, _7252_DO_READRELAY .........................27
5.8 _7251_CHECK_EXIST......................................................................28
CHAPTER 6 TROUBLESHOOTING.......................................................29
APPENDIX A. RELAY CONTACT PROTECTION CIRCUITS..............31
PRODUCT WARRANTY/SERVICE..........................................................35
How to Use This Guide •• iii
How to Use This Guide
In the following contents, we use PCI-725X as a convenient for PCI-
7250, PCI-7251 and cPCI-7252 if no specifed. The manual describes
how to modify various settings on the PCI-725X cards to meet your
requirements. It is divided into five chapters:
•• Chapter 1, "Introduction", gives an overview of the product
features, applications, and specifications.
•• Chapter 2, "Installation", describes how to install the PCI-725X.
The layout is shown, the jumpers setting for input configuration
are specified.
•• Chapter 3, "Programming", describes how to program the digital
input and output channels on the PCI-725X.
•• Chapter 4, "Relay Outputs & Isolation Inputs", gives an overview
of PCI-725X's relay outputs and isolation inputs.
•• Chapter 5, "C/C++ Libraries", describes the DOS and Windows 95
C/C++ Library for operating the PCI-725X.
•• Chapter 6, "Troubleshooting", describes how to use DOS DEBUG
utility to vertify the functionality of PCI-725X.
Introduction •• 1
1
Introduction
The PCI-7250/7251 and cPCI-7252 Relay Actuator and Isolated D/I
card is a basic Digital I/O card for PCI bus computer in industrial
applications.
This PCI-7250 and PCI-7251 provide 8 relay actuators and 8 opto-
isolated digital inputs. From the eight relays, four relays are Form C
(R0~R3) and four relays are Form A ( R4~R7). The cPCI-7252
provides 8 relay actuators and 16 opto-isolated digital inputs, all relays
are Form C type. They are very suitable for ON/OFF control devices.
For the identical non-polarity opto-isolated digital input channels, 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 status of each relay output is reflected by a LED. When the relay is
energized, its corresponding LED will turn ON, otherwise it is OFF.
The relay outputs and digital inputs are controlled by two bytes of I/O
address. When the corresponding bit is read or written, its output
status will be controlled, or its input status be monitored. The I/O
signals are via a 37 pin D-type connector that projects through the
computer case at the rear of the board.
2•• Introduction
1.1 Features
The PCI-7250 Relay Actuator and D/I Card provides the following
advanced features:
•32-bit PCI-Bus, Plug and Play for PCI-7250
•32-bit ComapctPCIBus, Plug and Play for cPCI-7252
•8 relay actuator outputs
•8 opto-isolated digital inputsfor PCI-7250
•16 opto-isolated digital inputs for cPCI-7252
•LED indicators to show activated relays
•Jumper selectable AC-filter/non-AC-filter input signals
•On-board relay driving circuits
•On-board digital input signal conditioning circuits
Note: The PCI-7251 can attach to the PCI-7250 card. Each PCI-7251 card provides
another 8 relay output and 8 photo isolated input signals. There are at most
three PCI-7251 cards can be attached on one PCI-7250 card so that the
system can provide 32 relay output signals and 32 photo isolated inputs
signals.
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,
•Useful with A/D and D/A cards to implement a data acquisition
& control system
1.3 Specifications
♦Digital input
Input channels 8 for PCI-7250 and PCI-7251
16 for cPCI-7252
Photo-coupler PC-814
Input current 60 mA max. for isolated input
Input Voltage 3 - 24 VDC ( AC 50-1,000Hz)
Input impedance 1.2 KΩ
Threshold Voltage 2.4 VDC
Input mode Isolation AC-filter/ Non-AC-filter
Introduction •• 3
Withstanding voltage 1,000 VDC
♦Relay Output
Output Channels 8
Relay Type 8 SPST ( Form C )
Contact rating 120V AC/DC , 0.5 A
24V Vdc, 1A
Breakdown Voltage 1000 V AC/DC min..
Release time 8 msec max.
Operate time 8 msec max..
Insulation Resistance 100M Ωmin.
Life Expectancy > 10 million operations at full load
Power Consumption +12V , 33 mA for each relay , total
0.264 A
Power supply of Relay + 5V from the PCI-Bus
♦General Specifications
Dimensions 147 mm x 95 mm for PCI-7250
141 mm x 106 mm for PCI-7251
160 mm x 100 mm for cPCI-7252
Bus 32-bit PCI bus
I/O port address Assigned By System BIOS
Temperature 0 ~ 50°C (Operating);
Humidity 0 to 90% non-condensing
♦Power Consumption
Power Consumption Note: No relay is energized
PCI-7250 +5V @ 140 mA
PCI-7251 +5V @ 125 mA
cPCI-7252 +5V @ 120 mA
Ce manuel convient aux modèles suivants
2
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