Measurement Computing CIO-DAC08 Manuale utente

CIO-DAC08

Analog Output Board

User’s Guide

Document Revision 2A, January, 2007

Trademark and Copyright Information

Measurement Computing Corporation, InstaCal, Universal Library, and the Measurement Computing logo are

either trademarks or registered trademarks of Measurement Computing Corporation. Refer to the Copyrights &

Trademarks section on mccdaq.com/legal for more information about Measurement Computing trademarks.

Other product and company names mentioned herein are trademarks or trade names of their respective

companies.

reproduced, stored in a retrieval system, or transmitted, in any form by any means, electronic, mechanical, by

photocopying, recording, or otherwise without the prior written permission of Measurement Computing

Corporation.

Notice

Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for

use in life support systems and/or devices without prior written consent from Measurement Computing

Corporation. Life support devices/systems are devices or systems that, a) are intended for surgical implantation

into the body, or b) support or sustain life and whose failure to perform can be reasonably expected to result in

injury. Measurement Computing Corporation products are not designed with the components required, and are

not subject to the testing required to ensure a level of reliability suitable for the treatment and diagnosis of

people.

HM CIO-DAC08.doc

Table of Contents

About this User's Guide .......................................................................................................................6

What you will learn from this user's guide.........................................................................................................6

Conventions in this user's guide .........................................................................................................................6

Where to find more information.........................................................................................................................6

Chapter 1

Introducing the CIO-DAC08 .................................................................................................................7

Overview: CIO-DAC08 features........................................................................................................................7

Software features................................................................................................................................................7

Chapter 2

Installing the CIO-DAC08 .....................................................................................................................8

What comes with your CIO-DAC08 shipment?.................................................................................................8

Hardware .......................................................................................................................................................................... 8

Additional documentation ..................................................................................................................................8

Optional components..........................................................................................................................................8

Unpacking the CIO-DAC08 ...............................................................................................................................9

Installing the software ........................................................................................................................................9

Configuring the CIO-DAC08 .............................................................................................................................9

Base address switch .......................................................................................................................................................... 9

Wait state jumper.............................................................................................................................................................11

Individual / simultaneous update jumper .........................................................................................................................11

Power up and reset jumper...............................................................................................................................................12

Analog output range switch .............................................................................................................................................12

Installing the CIO-DAC08 ...............................................................................................................................12

Connecting the board for I/O operations ..........................................................................................................13

Connectors, cables – main I/O connector ........................................................................................................................13

Pinout – main I/O connectors ..........................................................................................................................................13

Cabling.............................................................................................................................................................................14

Field wiring, signal termination, and conditioning ..........................................................................................................14

Chapter 3

Programming and Developing Applications ....................................................................................15

Programming languages ...................................................................................................................................15

Packaged applications programs ......................................................................................................................15

Register-level programming .............................................................................................................................15

Chapter 4

Functional Details ...............................................................................................................................16

Signal connections............................................................................................................................................16

Chapter 5

Specifications......................................................................................................................................17

Analog output ...................................................................................................................................................17

Power consumption ..........................................................................................................................................17

Environmental ..................................................................................................................................................18

Main connector and pin out..............................................................................................................................18

Preface

About this User's Guide

What you will learn from this user's guide

This user's guide explains how to install, configure, and use the CIO-DAC08 board so that you get the most out

of its analog output features. This user's guide also refers you to related documents available on our web site,

and to technical support resources.

Conventions in this user's guide

The following conventions are used in this manual to convey special information:

For more information on …

Text presented in a box signifies additional information and helpful hints related to the subject matter you are

reading.

Caution! Shaded caution statements present information to help you avoid injuring yourself and others,

damaging your hardware, or losing your data.

<#:#> Angle brackets that enclose numbers separated by a colon signify a range of numbers, such as those assigned

to registers, bit settings, etc.

bold text Bold text is used for the names of objects on the screen, such as buttons, text boxes, and check boxes. For

example:

1. Insert the disk or CD and click the OK button.

italic text Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase. For

example:

The InstaCal installation procedure is explained in the Quick Start Guide.

Never touch the exposed pins or circuit connections on the board.

Where to find more information

The following electronic documents provide information relevant to the operation of the CIO-DAC08.

MCC's Specifications: CIO-DAC08 (the PDF version of the Specifications chapter in this guide) is

available on our web site at www.mccdaq.com/pdfs/CIO-DAC08.pdf.

MCC's Quick Start Guide is available on our web site at

www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf.

MCC's Guide to Signal Connections is available on our web site at

www.mccdaq.com/signals/signals.pdf.

MCC's Universal Library User's Guide is available on our web site at

www.mccdaq.com/PDFmanuals/sm-ul-user-guide.pdf.

MCC's Universal Library Function Reference is available on our web site at

www.mccdaq.com/PDFmanuals/sm-ul-functions.pdf.

MCC's Universal Library for LabVIEW™User’s Guide is available on our web site at

www.mccdaq.com/PDFmanuals/SM-UL-LabVIEW.pdf.

CIO-DAC08 User's Guide (this document) is also available on our web site at

www.mccdaq.com/PDFmanuals/CIO-DAC08.pdf.

Chapter 1

Introducing the CIO-DAC08

Overview: CIO-DAC08 features

The CIO-DAC08 has 8 channels of 12-bit analog output (one D/A per channel). Analog outputs are dual-DAC

AD7273s (two analog outputs per chip), with each output buffered by an OP07. The CIO-DAC08 is compatible

with MetraByte's DDA-06 but lacks digital outputs. Software designed for the DDA-06 will operate the analog

outputs.

Analog output ranges are switch-selectable for a Bipolar or Unipolar range. Bipolar ranges are ±10 V, ±5 V,

and ±2.5 V. Unipolar ranges are 0 to 10 V, 0 to 5 V, and 0 to 2.5 V.

The analog outputs are controlled by writing a digital control word as two bytes to the DAC's control register.

The control register is double buffered so the DAC's output is not updated until the second byte (the high byte)

is written.

Each analog output pair is jumper-selectable for either individual or simultaneous update. When a DAC pair is

set for simultaneous update, writing new digital values to the DAC's control register does not update the DAC's

voltage output. Update of the output occurs only after a READ from the board's addresses.

The board also features a wait state generator that you enable with an on-board jumper.

Software features

For information on the features of InstaCal and the other software included with your CIO-DAC08, refer to the

Quick Start Guide that shipped with your device. The Quick Start Guide is also available in PDF at

.www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf

Check www.mccdaq.com/download.htm for the latest software version.

Chapter 2

Installing the CIO-DAC08

What comes with your CIO-DAC08 shipment?

The following items are shipped with the CIO-DAC08.

Hardware

CIO-DAC08

Additional documentation

In addition to this hardware user's guide, you should also receive the Quick Start Guide (available in PDF at

www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf). This booklet supplies a brief description of

the software you received with your CIO-DAC08 and information regarding installation of that software.

Please read this booklet completely before installing any software or hardware.

Optional components

You can also order the following MCC products to use with your CIO-DAC08.

Cables

C37FF-x

C37FFS-x

Signal termination and conditioning accessories

MCC provides signal conditioning and termination products for use with the CIO-DAC08. Refer to Field

wiring, signal termination, and conditioning on page 14 for a complete list of compatible accessory

products.

CIO-DAC08 User's Guide Installing the CIO-DAC08

Unpacking the CIO-DAC08

As with any electronic device, you should take care while handling to avoid damage from static

electricity. Before removing the CIO-DAC08 from its packaging, ground yourself using a wrist strap or by

simply touching the computer chassis or other grounded object to eliminate any stored static charge.

If any components are missing or damaged, notify Measurement Computing Corporation immediately by

phone, fax, or e-mail:

Phone: 508-946-5100 and follow the instructions for reaching Tech Support.

Fax: 508-946-9500 to the attention of Tech Support

Email: techsupport@mccdaq.com

Installing the software

Refer to the Quick Start Guide for instructions on installing the software on the Measurement Computing Data

Acquisition Software CD. This booklet is available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-

Quick-Start.pdf.

Configuring the CIO-DAC08

The CIO-DAC08 has one base address switch, one bank of gain switches for each analog output channel, a

simultaneous update jumper for each DAC pair, a "power-up state" selection jumper, and one wait state jumper

which you must set before installing the board in your computer. The InstaCal calibration and test program

included with the CIO-DAC08 will show you how to set the switches. Run InstaCal before you open your

computer and install the board.

The CIO-DAC08 is shipped with the factory-default settings listed below.

Factory-configured default settings

Board label Switch/jumper description Default setting

ADDRESS DIP switch for setting the base address 300h (768 decimal)

WAIT STATE Jumper to enable a wait state OFF position

XFER Jumper to select simultaneous or single channel

update for each DAC channel pair

Single channel update

0through 7DIP switches to set the analog output range ±5V

PWR UP Jumper to select the power up and reset state STD position — standard (undefined

output values at power up)

Before installing the CIO-DAC08 in the computer, verify that the board is configured with the settings that you

want. Review the following information to change the default configuration of a jumper or switch on the CIO-

DAC08 board.

Base address switch

Before you install the CIO-DAC08 in your computer, set the base address by using the dip switch labeled

ADDRESS located on the board.

The easiest way to set the base address switch is to let InstaCAL show you the correct settings. However, if are

already familiar with setting ISA base addresses, you may use the base address switch description below to

guide your base address selection.

CIO-DAC08 User's Guide Installing the CIO-DAC08

Unless there is already another board in your system using address 300 hex (768 decimal), leave the switches as

they are set at the factory. The example shown in Fi shows the settings for the factory-default base

address of 300 hex.

gure 1

Figure 1. CIO-DAC08 base address switches

gure 1

HEX

200

100

98765

In the default configuration shown in Fi , addresses 9 and 8 are DOWN, and all others are UP.

Address 9 = 200 hex (512 decimal) and address 8 = 100 hex (256 decimal); when added together they equal

300 hex (768 decimal).

Disregard the numbers printed on the switch

When setting the base address, refer to the numbers printed in white on the printed circuit board.

PC I/O addresses

Hex Range Function Hex Range Function

000-00F 8237 DMA #1 2C0-2CF EGA

020-021 8259 PIC#1 2D0-2DF EGA

040-043 8253 Timer 2E0-2E7 GPIB (AT)

060-063 8255 PPI (XT) 2E8-2EF Serial Port

060-064 8742 Controller (AT) 2F8-2FF Serial Port

070-071 CMOS RAM & NMI mask (AT) 300-30F Prototype card

080-08F DMA page registers 310-31F Prototype card

0A0-0A1 8259 PIC #2 (AT) 320-32F Hard disk (XT)

0A0-0AF NMI mask (XT) 378-37F Parallel printer

0C0-0DF 8237 #2 (AT) 380-38F SDLC

0F0-0FF 80287 numeric CO-P (AT) 3A0-3AF SDLC

1F0-1FF Hard disk (AT) 3B0-3BB MDA

200-20F Game control 3BC-3BB Parallel printer

210-21F Expansion unit (XT) 3C0-3CF EGA

238-23B Bus mouse 3D0-3DF CGA

23C-23F ALT bus mouse 3E8-3EF Serial port

270-27F Parallel printer 3F0-3F7 Floppy disk

2B0-2BF EGA 3F8-3FF Serial port

The CIO-DAC08 Base switch can be set for an address in the range of 000-3E0, so it should not be hard to find

a free address area for your CIO-DAC08. If you are not using IBM prototyping cards, or some other board

which occupies these addresses, then 300-31F HEX are free to use. Addresses not specifically listed, such as

390-39F, are free.

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