8 Channel Analogue Output Board User Manual
Contents
1. 1 2 4 5 5 7 8 E 10 BI f vs 07 s07 DBO a2 al Wo DE 806 pat BA al Wm oS 805 A MN 7 Bs 2 D 804 Ho A5 CS el Bia ds e Se ES A6 O 5 15 DZ BD2 Das A NN 4 Die or 801 es A B S 3 We AD569 Do ba BDO Deech 087 SS 2 DIR EN 18 450 I 19 os ien BD i Ben Lac 8 uer vour at ho AD OPTS 1A LE ADB24 1 REL 6 AD BEN l DBB Y cs A3 O 2 12 x eno 18 FATT Al LDACA pag db aso 3 13 D j oro HBEA pato MARS A PALIOLE ha P LBEA Den OPO7 ess 5 5 OPTA LDACB pers VREFS o N 6 16 HBEE REF IK re 4VREFF 4 7 7 3 is ca M S paie vREFS o 5 18 1 RE DB15 VREFF 9 19 w 15 28 107 Ee Ic 10 D izv av CA ne toy LKA 2 ae bies d S s KE o tu d o 5 H az SJ sl DC Te TE El 72 BALAD 10V E 83 029 ST ba v a c2 AS A a o as y 28 Ps 17 NU 3 3 4 ov D D REF a27 SJ sj He FER o a verk 5 al LKO thet Pl P o T o E GNAD A30S 750 OV 3 RAT 15 16 5 7 8 3 ci ca C7 Cm 8 ov AG 1589 LKD wes AZSISJ 7 P De 6 9 o 10 ov 11 A A0588 IKE Aa M24 ST GI Dr 7m hz 3 ag REF NSER A4 OND 15 23T a Nn 8 13 oo 14 LE TUNER MOF re aes A ar 4 ge on LKE el p a o asos aa ES U 12 o 15 16 NA 14 S Ri AEN ASEL s e 17 AUS ii Pen Sho Bo ka k K T of BLUE CHIP TECHNOLOGY LIMITED di a MAIN AVENUE HAWARDEN INDUSTRIAL PARK DEESIDE CHS 3P2. 0 DATA BITS 7 0 CII ADDRESS xx1 wo CHANNELS 0 DATA BITS 11 8 Blue Chip Technology Ltd 01271011 doc Page 7 Page 8 Electrical Options 3 0 ELECTRICAL OPTIONS 3 1 Output Connections A 50 way insulation displacement connector IDC is provided on the PC rear panel of the board for output signal connection If access to individual channels is required a 50 way IDC ribbon cable may be used to connect the outputs to a 50 way screw terminal block available from Blue Chip Technology as part number ST 24 The functions of the pins are shown in Section 3 2 When the connector is viewed from the back of the system odd numbered pins are on the left and even numbered pins are on the right with pin 1 at the top of the connector Pin Detail View with gold edge connectors downwards Page 8 01271011 doc Blue Chip Technology Ltd Electrical Options Page 9 3 2 Connector Pin Details function fo ein lbc G 150 los doc Channel 3 ve 7 o Jo 8 Analogue Ground Channel 4 ve 9 o 010 Analogue Ground Blue Chip Technology Lid 01271011 doc Page 9 Page 10 Operating Guide 4 0 OPERATING GUIDE 4 1 Using the Device The normal method of setting an output is 1 Load data by writing to low byte port 2 Load data on writing to high NIBL port 3 Strobe data to output by reading UPDATE port The digital to analogue converters used on this board contain a buffer and the data is initially written into
3. 200 Address Settings for Port 200H HERE 10 20 40 80 100 200 Address Settings for Port 210H TS Se 10 20 40 80 100 200 Blue Chip Technology Ltd 01271011 doc Page 13 Page 14 Appendix A Address Settings for Port 220H ggg em 10 20 40 80 100 200 Address Settings for Port 230H O O O MSB LSB 5 SS 10 20 40 80 100 200 Page 14 01271011 doc Blue Chip Technology Ltd Appendix B Page 15 APPENDIX B PC MAPS PC XT AT I O Address Map Address 000 01F 020 03F 040 05F 060 06F 070 07F 080 09F 0A0 0BF OFO OF1 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 to DMA Controller 1 8237A 5 Interrupt Controller 1 8259A Timer 8254 Keyboard Controller 8742 Control Port B RTC and CMOS RAM NMI Mask Write DMA Page Register Memory Mapper Interrupt Controller 2 8259 Clear NPX 80287 Busy Reset NPX 80287 Numeric Processor Extension 80287 Hard Disk Drive Controller Reserved Reserved for Parallel Printer Port 2 Reserved for Serial Port 2 Reserved Reserved Parallel Printer Port 1 Reserved for SDLC Communications Bisync 2 Reserved for Bisync 1 Reserved Reserved Display Controller Diskette Drive Controller Serial Port 1 Blue Chip Technology Ltd 01271011 doc Page 15 Page 16 Appendix B PC XT Interrupt Map Number Allocated to NMI Parity 0 Timer 1 Ke
4. D2 and D3 b Calibration A 10V reference is generated for all channels from diode D1 and ICS This voltage may be trimmed using RV5 or completely re scaled by changing RI R2 or DI Individual channels can be trimmed by trimpots as follows Trimpot Ref Blue Chip Technology Ltd 01271011 doc Page 11 Page 12 Commercial Data Acquisition Packages 5 0 COMMERCIAL DATA ACQUISITION PACKAGES The Blue Chip Technology DOP 24 can be used with almost any data acquisition or control package that can write information directly to a PC output port 5 1 Use of the AOP 8 Board with ASYST The board has been tested with and is installable as an IO PORT digital device in the ASYST scientific software package by Macmillan Software Company For more details about this package and other PC data acquisition software please contact Blue Chip Technology 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 continuos product development is operated resulting in the contents of this document being subject to change without notice Page 12 01271011 doc Blue Chip Technology Ltd Appendix A Page 13 APPENDIX A Note view board with back panel on RHS Address Settings for Port 300H ai 1 10 20 40 80 100
5. AOP 3 8 Channel Analogue Output Board Blue Chi Technology User Manual AOP 8 User Manual Document Part N 0127 1011 Document Reference 0127 1011 Doc Document Issue Level 1 0 Manual covers PCBs identified AOP 8 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 Amendment History Issue Issue Amendment Details Level Date 08 05 89 First draft 1 0 12 09 97 SEJ Update window front cover and logo See ECN 98 084 Contents OUTLINE DESCRIPTION ui 1 1 0 SPEGIFICATIONS nn ns ED RR EE 2 1 1 Electrical Specification a 2 1 2 Physical Specification ANANE AnaS 2 Electromagnetic Compatibility EM 2 2 0 USER ADJUSTMENTS ena 5 2 1 Selecting the Base Address 5 2 2 POR Te 6 3 0 ELECTRICAL OPTIONS sis 8 3 1 Output Connections 8 3 2 Connecto
6. D UPD t Qupo 81327 s 16 19 19 o oo eT av 45v RST BRST BAT e em va Ei C17 B2LJ 8 18 16 2 TIP1 47 16 B3 B29 BWR VREF c5 De o5 741 3 m SIE o 5 a VREFA 81 810 831 VREF o e VREF ES VREFB R2 VREFB so d H a Dono 3 1 ies 21 DER 12V 12 4 12 4 Ic3 J ml py y Ic 13 DS RFBE 102 AD7537 am cspo 8 D7 loura 12V ES RVD 4 TITLE AOP 8 ANOLOG OUTPUT BOARD EC R CIRCUIT DIAGRAM RI DRAWING NUMBER AOPDOO1 REV C INDUSTRIAL amp SCIENTIFIC COMPUTERS HAWARDEN INDUSTRIAL PARK MANOR LANE DEESIDE DRAWN S E DATE 26 5 87 SHEET 1 OF 1 CLWYD CHS 3PP TEL 0244 536123 TX 61471 1 2 3 4 5 6 7 8 9 10
7. P TEL 0244 520222 TELEX 61471 9 Ka N i c SCALE A3 TITLE zt cs cg ou Y H E E T k TWIN 16 BIT ANALOGUE OUTPUT BOARD a Ei 87 CHK D MMc A0P 2 12v DRAWN S E DATE 5 6 87 DRAWING NUMBER AOP2D001 REV 0 1 2 4 5 5 7 8 A 10 12V Teo vod DO RFBA OP1 s T IP OP1 IZJAB 7 wl DI IQUTA P4 opi D2 P1 5 D3 THI AG opi 03 AGNDA t 3 ic 10 pa A 5 NS a5 00 00 2 f3 aps 05 CONVERTER P Giman P oP2 D4 D5 DE RFBB 6 RFBB 13 22 AD7537 D7 lous AD7537 807 D7 10UTB 807 D7 TI a2 op2 14 23 cs P1 7 os AGNDB A 24 tos iso A27 ZI UPO A26 2T qa A25 2T At A24 ZT VREFA VREFB A23 ZI DGND 12 A227 Ich 12V 20 oo O gal to ALT 3 RVB oF p un pel 458 1 D2 O PIAS D3 AGNDA t cn 1012 Da D5 y 15V Ds RFBB 13 22 sva AD7537 c D7 vum 8 AZ Cer cspz 458 2 csp3 458 2 A29 ZT 3 5 Co de Mi ER de n ges 7 7 RAS AS esa BRST Hor ANDE K jsa BRST err AGNDB Ee 9 msa S T it 2 A i a Ka go bala PAL10L8 IOR CsP3 BWR BWR ow BE 5 15 UPD 18 15V 18 15V ous uPD BECH UP
8. r Pin Details 9 4 0 OPERATING GUIDE nanna 10 4 1 Using the Device ss 10 4 2 Programming Guide 10 LS User Ee le TE 11 5 0 COMMERCIAL DATA ACQUISITION PACKAGES 12 5 1 Use of the AOP 8 Board with ASYST en 12 APPENDIX A naeh 13 APPENDIX B PC MAPS ui 15 PC XT AT I O Address Map 15 PC XT Interrupt Map 16 PC AT Interrupt Map 17 Blue Chip Technology Ltd 01271011 doc Outline Description Page 1 OUTLINE DESCRIPTION This card provides 8 analogue outputs in the range 0 10V at up to 10mA per channel Blue Chip Technology Ltd 01271011 doc Page 1 Page 2 Specifications 1 0 SPECIFICATIONS 1 1 Electrical Specification Number of Outputs 8 Max Output Voltage 10 24V D C Max Load Current 10mA D C 1 2 Physical Specification Width 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 e The board must be installed in a computer system which provides screening suitable for the industrial environment e Any recommendations made by the computer system manufac
9. 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 Blue Chip Technology Ltd 01271011 doc Page 3 Page 4 Specifications 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 amp B Immunity EN 50082 1 1992 incorporating Electrostatic Discharge TEC 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 4 01271011 doc Blue Chip Technology Ltd User Adjustments Page 5 2 0 USER ADJUSTMENTS 2 1 Selecting the Base Address The board may be located in any 62 pin slot in the PC motherboard but must be set up to appear at a specified position or address in the 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
10. 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 conflicting address then another reasonably safe address is 200 to 21F Hex A set of links is provided on the board to 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 O and the absence of a link representing a 1 To set the base address to 768 Decimal 300 Hex set the following pattern on the links as indicated Blue Chip Technology Ltd 01271011 doc Page 5 Page 6 User Adjustments Figure 1 Selecting the Base Address Note View board with back panel on RHS Middle 6 Bits of port address on links s lololo o T 10 20 40 80 100 200 More example addresses are shown in Appendix A Note No two cards must occupy the same address 2 2 Port Map The AOP card has up to eight 12 bit analogue output channels These are arranged as up to eight pairs of 8 bit ports One port holds the 8 low bits and the other the 4 high bits of the desired 12 bit output value This is shown below Address Write Read Page 6 01271011 doc Blue Chip Technology Ltd User Adjustments Page 7 For AOP 2 AOP 4 and AOP 6 all channels begin at 0 e g AOP 2 uses Base Oto Base 3 other channels are unpopulated 7 6 5 4 3 2 1 0 CII ADDRESS vm W O CHANNELS
11. this buffer without changing the output voltage The output voltages are not altered until the UPDATE command is performed which transfers the data from all buffers to their respective output register without altering the data in the buffers Thus single channels may be updated using an UPDATE command immediately after loading data for one channel or several output signals may be changed simultaneously by first loading data into the relevant buffers and then issuing the UPDATE command The procedure for a single output is illustrated in the software example 4 2 Programming Guide The output signals may be set as shown in the following example using Microsoft BASIC A or GW BASIC 10 INPUT Enter voltage required V 20 BITS V 400 30 TOP INT BITS 256 40 BOT INT BITS 256xTOP 50 OUT amp H300 BOT Set bottom byte 60 OUT amp H301 TOP Set top NIBL 70 A INP amp H30F This example assumes a standard board set for 2 5mV bit or 0 10 24V output and sets only channel O as controlled by the OUT statements in lines 50 and 60 Page 10 01271011 doc Blue Chip Technology Ltd 4 3 Operating Guide Page 11 User Options a Grounding The analogue ground for the outputs can be linked to digital ground using a link option LKB When the link is fitted the two grounds are connected Conversely with the link removed the grounds are allowed to float at different voltages up to 0 6V under the clamping action of diodes
12. turer supplier must be complied with regarding earthing and the installation of boards e 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 Page 2 01271011 doc Blue Chip Technology Ltd Specifications Page 3 Most EMC problems are caused by the external cabling to the board Analogue boards fitted with IDC ribbon cable connectors on the metal mounting bracket require particularly careful installation of the external cabling 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 The cabling must be totally screened the type of ribbon cable which is rolled to a round form with a braided wire screen is best Standard ribbon cable will not be adequate unless it is contained wholly within the cabinetry housing the industrial PC Keep the unscreened section as short as possible The mounting bracket of the board includes a captive nut as an screen earth point Connect the screen of the cable to this by the shortest possible wire 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 It is recommended that cables are kept as short as possible particularly when dealing with low level
13. yboard 2 Reserved 3 Asynchronous Communications Secondary SDLC Communications 4 Asynchronous Communications Primary SDLC Communications 5 Fixed Disk 6 Diskette 7 Parallel Printer Page 16 01271011 doc Blue Chip Technology Ltd Appendix B Page 17 PC AT Interrupt Map Level Allocated to CPU NMI Parity or VO Channel Check CTLR1 CTLR2 Interrupt Controllers IRQ O Timer Output 0 IRQ 1 Keyboard Output Buffer Full IRQ2 Interrupt from CTLR 2 IRQ 8 Real time Clock Interrupt IRQ 9 S w Redirected to INT OAH IRQ 2 IRQ 10 Reserved IRQ 11 Reserved IRQ 12 Reserved IRQ 13 Co processor IRQ 14 Fixed Disk Controller IRQ 15 Reserved IRQ 3 Serial Port 2 IRQ 4 Serial Port 1 IRQ 5 Parallel Port 2 IRQ 6 Diskette Controller IRQ 7 Parallel Port 1 Blue Chip Technology Ltd 01271011 doc Page 17 Typical Methods of Interfacing from an AOP card to other Circuitr 5V fo OUT TEMP SR SENSOR AOP PI ov gt The Analogue Output card can be used as a voltage reference in a closed loop temperature monitoring circuit FCLK AOP aan Vin Voltage to frequency The Analogue Output can be fed into a voltage to frequency converter
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