Channel Digital Input Board DIP-24 Document Part Document Referen
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DIP-24
Channel Digital Input Board
DIP-24 Document Part Document Reference Document Issue Level Manual covers PCBs identified 0127-0195 0127-0195.Doc DIP-24 Rev.
rights reserved. part this publication reproduced, stored retrieval system, transmitted, form means, electronic, mechanical, photocopied, recorded otherwise, without prior permission, writing, from publisher. permission contact Blue Chip Technology. Information offered this manual correct time printing. Blue Chip Technology accepts responsibility inaccuracies. This information subject change without notice. trademarks registered names acknowledged.
Blue Chip Technology Ltd. Chowley Oak, Tattenhall Chester, Cheshire 9EX. Telephone 01829 772000 Facsimile 01829 772001.
Amendment History
Issue Level
Issue Date 08.05.89 24.11.97
Author
Amendment Details First draft Window front cover logo. 97/142
Contents
OUTLINE DESCRIPTION SPECIFICATIONS Electrical Specification Physical Specification Electromagnetic Compatibility (EMC). Specification USER ADJUSTMENTS Selecting Base Address. Port ELECTRICAL OPTIONS Input Conditioning Input Connections Detail Connector Details. OPERATING GUIDE. Using Device. Programming Guide Example Program COMMERCIAL DATA ACQUISITION PACKAGES DIP-24 Board with ASYST. APPENDIX APPENDIX MAPS. PC/XT/AT Address APPENDIX PC/XT Interrupt APPENDIX PC/AT Interrupt
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Outline Description
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OUTLINE DESCRIPTION
This card provides opto-isolated digital inputs. suitable sensing presence voltages range 24V. With board power inverter also used detect contact closures push buttons, relays etc. Full isolation between channels allows combination above inputs accommodated.
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Specification
SPECIFICATIONS Electrical Specification
Number Inputs Input Logic Levels `ON' `ON' `ON' `OFF' Maximum Input Voltage 3.5V (5V) 21.5V (12V) 34.5V (24V) <0.8V (All) (5V) 21.5V (12V) 34.5 (24V) D.C. 150mA 750mW
Power Requirement Power Dissipation
Physical Specification
Height Width Depth 107mm 15mm 132mm
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Electromagnetic Compatiblity (EMC)
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Electromagnetic Compatibility (EMC)
This product meets requirements European Directive (89/336/EEC) eligible bear mark. been assessed operating Blue Chip Technology Icon industrial However, because board installed variety computers, certain conditions have applied ensure that compatibility maintained. meets requirements industrial environment (Class product) subject those conditions. board must installed computer system which provides screening suitable industrial environment. recommendations made computer system manufacturer/supplier must complied with regarding earthing installation boards. board must installed with backplate securely screwed chassis computer ensure good metal-to-metal (i.e. earth) contact. Most problems caused external cabling boards. Boards fitted with ribbon cable connectors metal mounting bracket require particularly careful installation external cabling. cabling must totally screened; type ribbon cable which rolled round form with braided wire screen best. Standard ribbon cable will adequate unless contained wholly within cabinetry housing industrial Keep unscreened section short possible. mounting bracket board includes captive screen earth point. Connect screen cable this shortest possible wire. ensure that board meets industrial radiated field immunity 10V/metre, cable should also fitted with ferrite clamp external cable close possible connector. preferred type Chomerics clip-on style, type H8FE-1004-AS.
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Electromagnetic Compatibility
Ensure that screen external cable bonded good earth remote cable. Cables which connect externally boards levels should exceed metres length. This restriction does apply opto-isolated boards. Failure observe these recommendations invalidate compliance.
Warning This Class product. domestic environment this product cause radio interference which case user required take adequate measures.
Specification
Blue Chip Technology Icon industrial fitted with this card meets following specification: Emissions: 55022:1995 Radiated Conducted Immunity: 50082-2:1991 incorporating Electrostatic Discharge 801-2:1984 Performance Criteria 801-3:1984 Performance Criteria 801-4:1988 Performance Criteria Class Class
Radio Frequency Susceptibility
Fast Burst Transients
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User Adjustments
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USER ADJUSTMENTS Selecting Base Address
board located slot motherboard must appear specified position `address') port map. Available positions show IBM-PC Technical Reference Guide. However, those possess copy this document, good place location normally allocated prototyping card supplied IBM. This address decimal. Blue Chip Technology cards preset this address factory. However, devices should used while same address since contention will occur neither board will work. There exception this rule. place DIP-24 DOP-24 same address boundary card only enabled read instructions card only enable write instructions. This useful facility short port space your machine. links provided board base address board within IBM-PC port map. address binary with presence link representing absence link representing
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User Adjustments
base address Decimal (300 Hex) following pattern links indicated below: Figure Selecting Base Address Note: View board with back panel Middle Bits port address links.
More example addresses shown Appendix Note: cards must occupy same address.
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User Adjustments
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Port
board provides three ports. Each read software sense state inputs connected card. card occupies four ports although only three used shown below.
Address Base Base Base Base Read Channels Channels 8-15 Channel 16-23 used card. Write
ADDRESS XX0H (R/O)
CHANNELS (Base
(Bit Channel etc.)
ADDRESS XX1H (R/O)
CHANNELS (Base
(Bit Channel etc.)
ADDRESS XX2H (R/O)
CHANNELS (Base
(Bit Channel etc.)
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Electrical Options
ELECTRICAL OPTIONS Input Conditioning
resistor packs (RP5, RP7) provided front board condition input current suitable level opto-isolators. value these resistors must calculated ensure that current passed through opto-isolator limited 10mA. opto-isolator will drop 1.5V constantly.
REQUIRED RESISTANCE (INPUT VOLTAGE 1.5V) 0.01
following table gives some common examples using preferred resistor values:
Input Voltage Resistor Value 330R fitted standard 820R
Note: Resistor type package, individual resistor elements. Farnell type 149-014 [1K].
Input Connections
insulation displacement connector (IDC) provided rear panel board input signal connection. access individual channels required, ribbon cable used connect inputs screw terminal block available from Blue Chip Technology part number ST-24. pins numbered shown following diagram.
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Electrical Options
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Pins 1-48 contain input channels pins output power inverter provide isolated volts contact wetting supply. input opto-isolators therefore connection polarity usually important. However, company policy call even numbered pins positive numbered pins negative DIP-24 conform with other cards range. When connector viewed from back system, numbered pins left even numbered pins right with connector.
Detail
View with gold edge connectors downwards.
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Electrical Options
Connector Details
Number Port Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Base Function signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal signal
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Electrical Options
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Number
Port Function Base signal Base signal Base signal Base signal Base signal Base signal Base signal Base signal Base signal Power inverter negative output volts Power inverter positive output volts
Note: Maximum current that drawn from pins 74mA max.
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Operating Guide
OPERATING GUIDE Using Device
total input signals connected DIP-24 board providing opto-isolation. These appear three ports. Each signal connected within these ports i.e.
Ports Decimal
Base
Base
Base
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Operating Guide
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Programming Guide
state input lines determined using either following methods: Microsoft BASIC BASIC X=INP Returns byte from port assigns this value variable, 8088/8086 Assembly language PORT 0300H GETDAT: DX,PORT AL,DX
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Operating Guide
Example Program
following program written Microsoft Basic will under BASIC BASIC interpreter intended display inputs three DIP-24 ports screen binary. This enables user each input channel activated. base address used program decimal which default factory setting link
:KEY LOCATE 1,20 :PRINT"DIP-24 Port Status" LOCATE P=&H300 &H302 PRINT"PORT ";HEX$ PRINT"["; GOSUB PRINT"] NEXT GOTO D=INP THEN GOSUB 1000 THEN GOSUB 2000 M=M*2 NEXT RETURN STOP 1000 PRINT "0"; 1010 RETURN 2000 PRINT"1"; 2010 RETURN
program cycles continuously stopped pressing control-break keyboard.
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Commercial Data Acquisition Packages
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COMMERCIAL DATA ACQUISITION PACKAGES
Blue Chip Technology DIP-24 used with almost data acquisition package that read information directly from input port.
DIP-24 Board with ASYST
board been tested with installable IO.PORT digital device ASYST scientific software package Macmillan Software Company. more details about this package other data acquisition software please contact Blue Chip Technology. Whilst every effort been taken ensure that information provided accurate, Blue Chip Technology cannot assume responsibility errors this manual their consequences. Should errors detected, company would greatly appreciate being informed them. policy continuous product development operated, resulting contents this document being subject change without notice.
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Appendix
APPENDIX
Note: View board with back panel RHS. Address Settings Port 300H
Address Settings Port 200H
Address Settings Port 204H
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Appendix
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Address Settings 210H
Address Settings Port 220H
Address Settings Port 230H
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Appendix
APPENDIX MAPS PC/XT/AT Address
Address 000-01F 020-03F 040-05F 060-06F 070-07F 080-09F 0A0-0BF 0F8-0FF 1F0-1F8 200-207 278-27F 2F8-2FF 300-31F 360-36F 378-37F 380-38F 3A0-3AF 3B0-3BF 3C0-3CF 3D0-3DF 3F0-3F7 3F8-3FF Allocated Controller (8237A-5) Interrupt Controller (8259A) Timer (8254) Keyboard Controller (8742) Control Port CMOS RAM, Mask (Write) Page Register (Memory Mapper) Interrupt Controller (8259) Clear (80287) Busy Reset (80287) Numeric Processor Extension (80287) Hard Disk Drive Controller Reserved Reserved Parallel Printer Port Reserved Serial Port Reserved Reserved Parallel Printer Port Reserved SDLC Communications, Bisync Reserved Bisync Reserved Reserved Display Controller Diskette Drive Controller Serial Port
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Appendix
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APPENDIX PC/XT Interrupt
Number Allocated Parity Timer Keyboard Reserved Asynchronous Communications (Secondary) SDLC Communications Asynchronous Communications (Primary) SDLC Communications Fixed Disk Diskette Parallel Printer
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Appendix
APPENDIX PC/AT Interrupt
Level Function Parity Channel Check
Microprocessor Interrupt Controllers CTLR CTLR
Timer Output Keyboard (Output Buffer Full) Interrupt from CTLR Real-time Clock Interrupt Software Redirected (IRQ Reserved Reserved Reserved Co-processor Fixed Disk Controller Reserved Serial Port Serial Port Parallel Port Diskette Controller Parallel Port
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