Tektronix DASCard-PIO12 Users Guide

DASCard-PIO12

U S E R ’ S G U I D E

DASCard-PIO12

User’s Guide

Revision A - September 1995

Part Number: 91430

New Contact Information

Keithley Instruments, Inc.

28775 Aurora Road

Cleveland, OH 44139

Technical Support: 1-888-KEITHLEY

Monday – Friday 8:00 a.m. to 5:00 p.m (EST)

Fax: [phone]

Visit our website at http://www.keithley.com

The information contained in this manual is believed to be accurate and reliable. However, Keithley
Instruments, Inc., assumes no responsibility for its use or for any infringements of patents or other rights
of third parties that may result from its use. No license is granted by implication or otherwise under any
patent rights of Keithley Instruments, Inc.

KEITHLEY INSTRUMENTS, INC., SHALL NOT BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
OR CONSEQUENTIAL DAMAGES RELATED TO THE USE OF THIS PRODUCT. THIS
PRODUCT IS NOT DESIGNED WITH COMPONENTS OF A LEVEL OF RELIABILITY
SUITABLE FOR USE IN LIFE SUPPORT OR CRITICAL APPLICATIONS.

Refer to your Keithley Instruments license agreement for specific warranty and liability information.

MetraByte, VTX, and Visual Test Extensions are trademarks of Keithley Instruments, Inc. All other
brand and product names are trademarks or registered trademarks of their respective companies.

© Copyright Keithley Instruments, Inc., 1995.

All rights reserved. Reproduction or adaptation of any part of this documentation beyond that permitted
by Section 117 of the 1976 United States Copyright Act without permission of the Copyright owner is
unlawful.

Keithley MetraByte Division

Keithley Instruments, Inc.

440 Myles Standish Blvd. Taunton, MA 02780

Telephone: [phone] ● FAX: [phone]

Preface

The DASCard-PIO12 User’s Guide describes how to set up, install, and
program the DASCard-PIO12 digital I/O interface card.

This guide serves data acquisition system designers, engineers,
programmers, and other users responsible for setting up, cabling and
wiring signals to a DASCard-PIO12 in a notebook or desktop computer
with a Type II, PCMCIA (Personal Computer Memory Card International
Association) socket. User are assumed to be familiar with data acquisition
principles, with their applications, and with their computers.

The DASCard-PIO12 User’s Guide is organized as follows:

● Chapter 1 provides an overview of the hardware and descriptions of

features, applications, supporting software, and accessories.

● Chapter 2 provides a block diagram and descriptions of major

features.

● Chapter 3 describes how to unpack, install, and start up the card.

● Chapter 4 describes how to connect accessories.

● Chapter 5 describes how to start up and use the Control Panel.

● Chapter 6 describes programming requirements of the card.

● Chapter 7 describes how to isolate common problems, how to

troubleshoot your system, and how to obtain technical support.

● Appendix A contains DASCard-PIO12 specifications.

● Appendix B contains pin assignments for the main I/O connector of

the DASCard-PIO12 cable.

● An index completes the manual.

vii

Table of Contents

Preface

1 Overview

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-1

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Supporting Software. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-2

Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-3

2 Functional Description

3 Setup and Installation

Assembling Your System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

Unpacking and Inspecting Your Card . . . . . . . . . . . . . . . . . . . . .3-2

Overview of Installation and Startup . . . . . . . . . . . . . . . . . . . . . .3-2

Installing the Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

Using the Configuration Utility . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

Creating or Modifying a Configuration File . . . . . . . . . . . . . .3-4

Creating a Configuration File for Multiple PIO Devices . . . .3-5

Loading the Keithley MetraByte Enabler Utility. . . . . . . . . . . . .3-6

Installing the Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-9

Using the Keithley MetraByte Diagnostics Utility . . . . . . . . . .3-10

4 Cabling and Wiring

Connecting an SSIO-24, ERB-24, ERA-01, or SRA-01 . . . . . . .4-2

Connecting an STP-37 or STA-U. . . . . . . . . . . . . . . . . . . . . . . . .4-3

Connecting Special-Purpose I/O Circuits . . . . . . . . . . . . . . . . . .4-4

Connecting a Contact-Closure Monitor to an Input . . . . . . . .4-4

Connecting an Input to a Debounce Circuit . . . . . . . . . . . . . .4-5

Connecting an Output to Darlington NPN for Relay Control.4-5

5 Control Panel

iii

6 Programming

Setting the Port Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . .6-2

Reading/Writing Data from/to the Ports . . . . . . . . . . . . . . . . . . .6-4

Writing to the Control Register. . . . . . . . . . . . . . . . . . . . . . . .6-4

Performing Fundamental I/O Operations . . . . . . . . . . . . . . . .6-5

Reading BCD Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-5

Performing Bit Operations . . . . . . . . . . . . . . . . . . . . . . . . . . .6-5

7 Troubleshooting

Identifying Symptoms and Possible Causes . . . . . . . . . . . . . . . .7-1

Testing the Card and the Computer . . . . . . . . . . . . . . . . . . . . . . .7-5

Testing the PCMCIA Socket and I/O Connections . . . . . . . . . . .7-5

Technical Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-6

A Specifications

B Connector Pin Assignments

Index

List of Figures

Figure 2-1. DASCard-PIO12 Block Diagram . . . . . . . . . . . . .2-1

Figure 4-1. DASCard-PIO12 and Attached I/O Cable. . . . . . .4-1

Figure 4-2. Attaching an SSIO-24, an ERB-24, an

ERA-01, or an SRA-01 to a

DASCard-PIO12 Cable . . . . . . . . . . . . . . . . .4-2

Figure 4-3. Connecting an STP-37 or STP-37/C to a

DASCard-PIO12. . . . . . . . . . . . . . . . . . . . . . .4-3

Figure 4-4. Panel Layout of STP-37 and STP-37/C. . . . . . . . .4-3

Figure 4-5. Contact-Closure Monitor for a

DASCard-PIO12 Input . . . . . . . . . . . . . . . . . .4-4

Figure 4-6. Debounce Circuit for a DASCard-PIO12 Input. . .4-5
Figure 4-7. Darlington NPN Relay Control for an

Output of a DASCard-PIO12 . . . . . . . . . . . . .4-5

Figure B-1. Main I/O Connector Pin Assignments for

the DASCard Cable . . . . . . . . . . . . . . . . . . . B-1

iv

List of Tables

Table 3-1. Default Configuration Options for

the DASCard-PIO12. . . . . . . . . . . . . . . . . . . .3-4

Table 3-2. Switch Options for the Enabler . . . . . . . . . . . . . . .3-7

Table 6-1. 82C55 PPI Address Map . . . . . . . . . . . . . . . . . . . .6-2

Table 6-2. Derivation of Port Configuration from

Control Word . . . . . . . . . . . . . . . . . . . . . . . . .6-3

Table 6-3. Control Word. . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-3

Table 7-1. Troubleshooting Information. . . . . . . . . . . . . . . . .7-1

Table A-1. Input and Output Specifications . . . . . . . . . . . . . A-1

Table A-2. Power Requirements . . . . . . . . . . . . . . . . . . . . . . A-2

Table A-3. Environmental Specifications . . . . . . . . . . . . . . . A-2

v

Features

1

Overview

The DASCard-PIO12 is a digital I/O PC Card that you can use with any
notebook or desktop computer that contains a Type II, PCMCIA
(Personal Computer Memory Card International Association) socket. This
chapter describes features and applications of the DASCard-PIO12,
supporting software, and available accessories.

Major features of DASCard-PIO12 are as follows:

● Contains 24 TTL/NMOS/CMOS-compatible digital I/O lines.

● Provides programmable unidirectional, bidirectional, and strobed I/O

(bidirectional and strobed I/O are not supported by the ASO-PIO
software package).

● Provides an interrupt input line.

● Provides direct interface with a wide range of accessory products,

including instruments, displays, and user-assembled systems.

● Is software- and register-compatible with the Keithley MetraByte

PIO-12, the predecessor product for IBM® PC/XT™, PC AT®, or
equivalent computers that use an ISA (Industry Standard
Architecture) bus.

Features 1-1

Applications

Typical applications for the DASCard-PIO12 are as follows:

● Contact closure monitoring

● Digital I/O control

● Alarm monitoring

● Display driving

● Relay control

Supporting Software

The DASCard-PIO12 and industry-standard PIO-12 are software- and
register-compatible. The following software is, therefore, available for
operating a DASCard-PIO12 or a PIO-12:

● ASO-PIO package - This package contains the following programs:

– The PIO Series Function Call Driver and DLLs (Dynamic Link

Libraries) that allow you to write custom programs in Microsoft®
and Borland® C/C++ for Windows™and in Microsoft Visual
Basic™ for Windows. This driver is also required if you use
Visual Test Extensions™, described on page 1-3. Refer to the
online help of the PIO Series Function Call Driver for more
information.

– ASO-PIO Control Panel - The Control Panel (CTLPIO.EXE)

runs under Windows and allows you to perform operations on
DASCard-PIO12 cards without programming. This program also
provides a quick way to test your card and monitor your
operation. Refer to Chapter 5 and to the online help for more
information.

– ASO-PIO configuration utility - This utility allows you to create

configuration files for use with the PIO Series Function Call
Driver. Refer to “Using the Configuration Utility” on page 3-4
and to the online help for more information.

1-2 Overview

Accessories

● Keithley MetraByte Enabler utility- The Enabler

(KMENABLE.EXE) is a DOS-based program that requests system
resources for your DASCard-PIO12. Refer to “Loading the Keithley
MetraByte Enabler Utility” on page 3-6 for more information

● Keithley MetraByte diagnostics utility- The diagnostics utility

(KMINFO.EXE for DOS, KMINFOW.EXE for Windows) is a
program that allows you to check the status of your DASCard-PIO12;
refer to “Using the Keithley MetraByte Diagnostics Utility” on page
3-10 for more information.

● Visual Test Extensions (VTX) - This optional Visual Basic custom

control software package helps you write Windows application
programs for the DASCard-PIO12. Refer to the Keithley MetraByte
product catalog for more information.

● Data acquisition and analysis application software - Refer to the

Keithley MetraByte product catalog for information on data
acquisition and analysis software available for the DASCard-PIO12.

The following accessories are available for use with your
DASCard-PIO12:

● SSIO-24 - This accessory is a 24-channel mounting panel for up to

24 solid-state, miniature I/O modules with functions of DC input, DC
output, AC input, and AC output. The SSIO-24 connects to the main
I/O connector of the DASCard-PIO12 cable. This accessory requires
external power (+5 VDC) when used with the DASCard-PIO12.

● ERB-24 - This accessory is a relay board that provides 24

electromechanical double-pole, double-throw relays for controlling
and switching up to 3 A at 120 V

. The ERB-24 connects to the

rms

main I/O connector of the DASCard-PIO12 cable. This accessory has
a built-in power supply requiring 115/230 VAC.

● ERA-01 - This accessory is an electrical relay board containing eight

single-pole, double-throw relays that can switch up to 3 A at 120
V

. The ERA-01 requires external power (+5 VDC) when used with

rms

the DASCard-PIO12.

Accessories 1-3

● SRA-01 - This accessory is an 8-channel, solid-state, mounting panel

for industry-standard I/O modules used in sensing and controlling AC
and DC circuits. The SRA-01 requires external power (+5 VDC)
when used with the DASCard-PIO12.

● STP-37 - This accessory is a screw-terminal panel for

general-purpose connections in a compact form factor.

● STA-U is a universal screw-terminal accessory that connects to the

main I/O connector of the DASCard-PIO12 to bring the card’s I/O
signals to convenient screw terminals.

Refer to the Keithley MetraByte catalog or contact your local sales office
for information on obtaining these accessories.

1-4 Overview

2

Functional Description

This chapter describes the features and operating characteristics of the
DASCard-PIO12. Figure 2-1 is a block diagram of the DASCard-PIO12.

PA7

Port A

PA0

82C55

PPI

Port B

Port C

PB7

PB0
PC7

PC0

Data

Bus

Buffer

Address
Decoder

PCMCIA Interface

IOR
IOW

PC Bus

Figure 2-1. DASCard-PIO12 Block Diagram

Interrupt
+5 V
COM

I/O

2-1

DASCard-PIO12 features and operating characteristics are described as
follows:

● The DASCard-PIO12 has three TTL/NMOS/CMOS-compatible,

digital I/O ports: port A, port B, and port C. Ports A and B are both
byte-wide (8-bits) and can be inputs or outputs. Port C is also
byte-wide but is usable as two separate 4-bit ports (port C Lower and
port C Upper), which can be an inputs or outputs.

● The DASCard-PIO12 has an interrupt input channel. During startup,

the Keithley MetraByte Enabler program can request any one of the
interrupt levels available on the PC bus.

● The Interrupt Controller of the computer handles interrupts and is set

by the computer BIOS to respond to positive-edge-triggered (low to
high) inputs. You must program the Interrupt Controller to respond to
your application by setting up the corresponding interrupt handler.

● The DASCard-PIO12 decodes 2-bit I/O addresses and communicates

with the PC bus as an 8-bit peripheral. The address map uses four
consecutive I/O addresses. You can install multiple DASCard-PIO12
cards in a computer with each at a different base address.

● The +5 V power level from the computer is available through the

main I/O connector of the DASCard-PIO12 cable. If you plan to use
power from the PC Card, you should consider the power draw of all
system devices and observe current-capacity limits of both the
computer and the card.

2-2 Functional Description

Setup and Installation

This chapter contains the information you need to install and use your
DASCard-PIO12.

Assembling Your System

For proper operation of a DASCard-PIO12, your system may require the
following items:

● Notebook or desktop computer with a Type II or Type III, PCMCIA

socket.

● Windows, Version 3.1 or higher, running in Enhanced mode.

● DOS, Version 5.0 or higher.

3

● CardSoft, CardWare, CardTalk, Phoenix CARD Manager

Plus, or any other PCMCIA Card and Socket Services (PCMCIA
standard 2.10 or higher). Each of these packages allows a
DASCard-PIO12 to work in your computer and is typically a
DOS-based, terminate-and-stay-resident (TSR) program loaded from
your CONFIG.SYS file.

Many notebook computers are shipped with PCMCIA Card and
Socket Services already installed. Check your computer
documentation or software package for the name of the services and
for compliance with PCMCIA standard 2.10 or higher. If you cannot
establish this compliance, you should obtain and install one of the
PCMCIA Card and Socket Services listed above.

● A Keithley MetraByte Enabler utility (KMENABLE.EXE) and a

Keithley MetraByte diagnostics utility (KMINFO.EXE for DOS and
KMINFOW.EXE for Windows).

3-1