BlueChip PIO-96 Manuel utilisateur
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
All rights reserved. No part of this publication may be reproduced, stored in any retrieval system, or
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.
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.
Table des matières
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