BlueChip PIO-96 Manual de usuario

PIO-96

96 Channel Programmable

Input/Output Board

User Manual

PIO-96

User Manual

Document Part N°0127-1015

Document Reference 0127-1015.Doc

Document Issue Level 1.2

Manual covers PCBs identified PIO-96 Rev B

transmitted, in any form or by any means, electronic, mechanical, photocopied, recorded or otherwise,

without the prior permission, in writing, from the publisher. For permission in the UK contact Blue Chip

Technology.

Information offered in this manual is correct at the time of printing. Blue Chip Technology accepts no

responsibility for any inaccuracies. This information is subject to change without notice.

All trademarks and registered names acknowledged.

Blue Chip Technology Ltd.

Chowley Oak, Tattenhall

Chester, Cheshire

CH3 9EX.

Telephone : 01829 772000 Facsimile : 01829 772001.

Amendment History

Issue

Level Issue

Date Author Amendment Details

1.1 First draft

1.2 24.11.97 SEJ Window front cover and logo. See ECN

98/088

Contents

Blue Chip Technology Ltd. 01271015.doc

1.0 INTRODUCTION..........................................................................1

ELECTROMAGNETIC COMPATIBILITY (EMC).................................2

EMC Specification .........................................................................3

2.0 USER ADJUSTMENTS................................................................4

2.1 Selecting the Base Address (JP1) ............................................4

2.2 Setting the Interrupt Channel (JP2) ..........................................6

3.0 PORT MAP..................................................................................7

3.1 Control Port Bit Functions ........................................................8

4.0 ELECTRICAL OPTIONS..............................................................9

4.1 Input Conditioning....................................................................9

4.2 Input/Output Connections.........................................................9

4.3 Connector Pin Details.............................................................11

5.0 OPERATING GUIDE..................................................................12

5.1 Using the Device....................................................................12

5.2 Programming Guide...............................................................13

Simple Inputs...............................................................................13

Simple Outputs............................................................................13

Typical Register Setups ...............................................................15

6.0 EXAMPLE PROGRAMS.............................................................16

Example Program 1.....................................................................16

Example Program 2.....................................................................17

7.0 COMMERCIAL DATA ACQUISITION PACKAGES ....................20

7.1 Use of the PIO-96 Board with ASYST ....................................20

APPENDIX.......................................................................................21

A1 I/O Address Map for PC/XT/AT Computers............................21

A2 Hardware Interrupt Levels for PC/XT ......................................22

A3 Hardware Interrupt Levels for PC/AT ......................................23

DMA Channels.............................................................................23

Introduction Page 1

Blue Chip Technology Ltd. 01271015.doc Page 1

1.0 INTRODUCTION

This card provides 96 programmable digital I/O lines. It is suitable for sensing

or driving TTL connections only.

There is provision for a set of on board pull up resistors to enable the board to

be used to detect contact closures on push buttons, relay contacts etc.

This manual refers to printed circuit boards identified (on the rear of the board)

by the reference “PIO-96 Rev. B”.

Whilst every effort has been taken to ensure that the information provided is

accurate, Blue Chip Technology cannot assume responsibility for any errors in

this manual or their consequences. Should any errors be detected, the company

would greatly appreciate being informed of them. A policy of continuous

product development is operated, resulting in the contents of this document

being subject to change without notice.

Page 2Electromagnetic Compatibility (EMC)

Page 201271015.doc Blue Chip Technology Ltd.

ELECTROMAGNETIC COMPATIBILITY (EMC)

This product meets the requirements of the European EMC Directive

(89/336/EEC) and is eligible to bear the CE mark.

It has been assessed operating in a Blue Chip Technology Icon industrial PC.

However, because the board can be installed in a variety of computers, certain

conditions have to be applied to ensure that the compatibility is maintained. It

meets the requirements for an industrial environment ( Class A product) subject

to those conditions.

• The board must be installed in a computer system which provides screening

suitable for the industrial environment.

• Any recommendations made by the computer system manufacturer/supplier

must be complied with regarding earthing and the installation of boards.

• The board must be installed with the backplate securely screwed to the

chassis of the computer to ensure good metal-to-metal (i.e. earth) contact.

• Most EMC problems are caused by the external cabling to boards. With

analogue boards particular attention must be paid to this aspect. It is

imperative that any external cabling to the board is totally screened, and that

the screen of the cable connects to the metal end bracket of the board and

hence to earth. It is recommended that round screened cables with a braided

wire screen are used in preference to those with a foil screen and drain wire.

Use metal connector shells which connect around the full circumference of

the screen; they are far superior to those which earth the screen by a simple

“pig-tail”. Standard ribbon cable will not be adequate unless it is contained

wholly within the cabinetry housing the industrial PC.

• If difficulty with interference is experienced the cable should also be fitted

with a ferrite clamp as close possible to the connector. The preferred type is

the Chomerics clip-on style, type H8FE-1004-AS.

Electromagnetic Compatibility (EMC) Page 3

Blue Chip Technology Ltd. 01271015.doc Page 3

• It is recommended that cables are kept as short as possible, particularly

when dealing with low level signals.

• Ensure that the screen of the external cable is bonded to a good RF earth at

the remote end of the cable.

Failure to observe these recommendations may invalidate the EMC compliance.

Warning

This is a Class A product. In a domestic environment this

product may cause radio interference in which case the user may

be required to take adequate measures.

EMC Specification

A Blue Chip Technology Icon industrial PC fitted with this card meets the

following specification:

Emissions: EN 55022:1995

Radiated Class A

Conducted Class A & B

Immunity: EN 50082-1:1992 incorporating

Electrostatic Discharge IEC 801-2:1984

Performance Criteria B

Radio Frequency Susceptibility IEC 801-3:1984

Performance Criteria A

Fast Burst Transients IEC 801-4:1988

Performance Criteria B

Page 4User Adjustments

Page 401271015.doc Blue Chip Technology Ltd.

2.0 USER ADJUSTMENTS

2.1 Selecting the Base Address (JP1)

The board may be located in any 62 pin ISA slot in the PC motherboard, but

must be set up to appear at a specified position (or ‘address’) in the computer’s

port map.

Available positions are shown in the IBM-PC Technical Reference Guide.

However, for those who do not possess a copy of this document a good place is

the location normally allocated to the prototyping card as supplied by IBM.

This address is 300 (hex) or 768 (decimal). All Blue Chip Technology cards

are preset to this address at the factory.

However, no two devices should be used while set to the same address since

contention will occur and neither board will work. If your machine contains a

card with a conflicting address then another reasonably safe address is 200 to

21F (hex).

A set of links on the board set the base address of the board within the IBM-PC

port map. The address is in binary with the presence of a link representing a 0

and the absence of a link representing a 1.

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