ADLINK Technology NuDAQ 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
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be trademarks and/or registered trademarks of their respective companies.

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Table of Contents•i
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

ii •Table of Contents
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

Tables and Figures•iii
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

iv•How to Use This Guide
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”, gives an overview of the product features,
applications, and specifications.
Chapter 2, “Getting Started”, describes how to install the PCI-7258.
The Board ID switch and connectors’ pin assignments are
also described.
Chapter3, “Registers”, describes the registers that are available to the
PCI-7258. The information is important for programmers who
want to control the hardware with low level programming
languages.
Chapter 4, “Operation Theory”, describes how to operate the PCI-
7258. The PhotoMos relay and isolated digital input are
introduced. Some programming concepts are alsodescribed.
Chapter 5, “C/C++ libraries”, describes the software utility and the
software libraries of the PCI-7258. This chapter also
outlines basic requirements for programming your own
software application.

Introduction •1
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.

2•Introduction
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:
P10 mA rated
P50 mA max. for isolated input