User`s Manual - ICP DAS USA`s I
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1. 30 A 3 connection to ISO AD32 DERDENCENZ DEN 37pin cable a blecolojocioliojso pr p po SS OE aj Ekle ojojejof 10 su ale cjoflo e cjojjejzo kq jolezjonnole eomas a Suz 8 CIEILIEIEIEL BEHBEBEHBE loflocloliojocloiol gt a 5 37pin cable al fl e Cle CIEL CUE EE foana ia l y i i du oe jo Do ot a lofcjojs ojofejof 10 20 pins flat cable ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 312. Stepl try Fig and record the measurement result 2 Step2 try Fig4 and record the measurement result 3 Step3 try Fig2 and record the measurement result 4 Compare the measurement result of stepl step2 step3 and select the best one ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 25 1 FG1 Connecting to grounding source input Right way ISO_AD32 A D CHOHI A D CHOLO Analog Common O A D CHnHI O A D CHnLO A D CHOLO Analog Common A D CHnHI Analog Conitgon ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 26 FG2 Connecting to singled ended input configuration ISO_AD32 Analog Common FG3 connecting to thermocouple configuration ISO_AD32 A D CHOHI A D CHOLO A D CHnHI A D CHnLO Analog Common Note If the input signal is not thermocouple the user i ale should use oscilloscope to measure common mode voltage of Vin before connecting to ISO AD32 Don t use voltage meter or multimeter Common at the computer CAUTION In Fig3 the maximum common mode voltage between the analog input source and the AGND is 70Vp p so the user must make sure that the input signal is under specification first If the common mode voltage is over 70Vp p the input multiplexer will be damaged forever ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 27 FG4 connecting to floating source configuration ISO_AD32 A D CHOHI A D CHOLO Analog Co
3. switch wAdConfig case 0x00 dMAX 10 0 break case 0x10 dMAX 5 0 break case 0x20 dfMAX 2 5 break case 0x30 dfMAX 1 25 break default return ConfigCodeError dfVal double wAdHex wZERO 2048 0 df MAX return dfVal double AD32H_ComputeRealValueBipola WORD wAdConfig WORD wAdHex WORD wZERO 2048 double dfMAX dfVal switch wAdConfig case 0x00 dMAX 5 0 break case 0x10 dMAX 0 5 break case 0x20 dfMAX 0 05 break case 0x30 dfMAX 0 005 break case 0x80 dfMAX 10 0 break case 0x90 dfMAX 1 0 break case OxAO dfMAX 0 1 break case OxBO dfMAX 0 01 break default return ConfigCodeError dfVal double wAdHex wZERO 2048 0 df MAX return dfVal j ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 19 double AD32H_ComputeRealValueUnipola WORD wAdConfig WORD wAdHex WORD wZERO 0 double dfMAX dfVal switch wAdConfig case 0x00 dMAX 10 0 break case 0x10 dMAX 1 0 break case 0x20 dfMAX 0 1 break case 0x30 dfMAX 0 01 break default return ConfigCodeError dfVal double wAdHex wZERO 2048 0 df MAX return dfVal 3 1 3 2 The Settling Time if the Channel number or gain factor is change the hardware need extra time for signal ready This is called the settling time This limitation will apply both to the Fixed channel mode and MagicScan mode AD conversions So the user must take care to avoid
4. the settling error Refer to DOS software manual Sec 3 6 3 1 3 3 How to Delay the Settling Time The SOftware driver can auto delay the settling time Refer to DOS software manual Sec 3 6 for fixed channel AD conversion It is no need to delay the settling time in the channel scan mode AD conversion ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 20 3 1 4 The AD Conversion Mode The AD operation can be fixed channel mode or channel scan mode In the fixed channel mode the AD operation will fix at one channel until the change channel command is received Refer to DOS software manual Sec3 6 Sec 3 7 Sec 3 9 Sec 3 10 for details In the channel scan mode the embedded controller will auto scan and change gain The scan sequence and gain for each channel can be programmable Refer to the software manual for details Refer to DOS software manual Sec3 16 Sec 3 17 Sec 3 18 for details ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 21 3 1 5 The Channel Scan Circular_Scan_Queue The channel scan controller equips with a circular queue for scan sequence control The scan sequence is one by one and repeatable with the limitation of maximum 32 channels So the following scan sequence are all validate One channel scan two channel scan scan sequence 010101 two channel scan scan sequence 101010 aaa two channel scan scan sequence 000000 U Three channel sca
5. ISO AD32 Hardware Manual ICP DAS Industrial Computer Products Data Acquisition System ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 1 Warranty All products manufactured by ICP DAS are warranted against defective materials for a period of one year from the date of delivery to the original purchaser Warning ICP DAS assume no liability for damages consequent to the use of this product ICP DAS reserves the right to change this manual at any time without notice The information furnished by ICP DAS is believed to be accurate and reliable However no responsibility is assumed by ICP DAS for its use nor for any infringements of patents or other rights of third parties resulting from its use Copyright Copyright 1997 by ICP DAS All rights are reserved Trademark The names used for identification only may be registered trademarks of their respective companies ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 2 Table of Contents 1 INTRODUCTION iii iii eto ei ig ge d eda de base BA GS a Issa pirati sse save da 4 lI GENERAL DESCRIPTION iii i ares 4 1 2 THE BLOCK DIAGRAMS 2eisces ccs ei ga con safra BIE ra ib SE Sirt rs ES 5 113 SEA TURES Sinn NON 6 I SSPECIBIGCA TIONS vives ita alia aa 7 1 5 PRODUCT CHECK DIST ii cein sete e A e a a i a cd 8 HARDWARE CONFIGURATION vi siscsssvnsssccsconsnssevscsussdssoscencsosssseetussevssceecsssessseusessuesssucsosnadccuusssvonsessassevac
6. Input 12bit 200K 32 single ended or 16 differential input channels ISO AD32 Block Diagram Fig 1 The block diagram of ISO AD32 The X86 send one command to command queue through ISA bus The embedded controller will auto read and execute this command The results of this command will store in the data FIFO therefore the X86 can read back and analysis the results through ISA bus The X86 site and the embedded controller is fully isolated Therefore the noise from external device will be isolated from X86 this will improve the X86 reliability The X86 only need to send out command and the embedded controller will handle the control details The features of command set system are given as following 1 reduce X86 load 2 easy programming ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 5 1 3 Features The general features of ISO AD32 series are given as follows 32 single ended or 16 differential input channels 500VDC photo isolation protection Maximum 200K 12 bit sampling rate Built in 1K byte FIFO Single ended or differential input can be jumper selectable Auto channel gain scan Command set programming Gap free A D conversion ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 6 1 4 Specifications Analog Input Specifications Channels 32 single ended 16 differential Resolution 12 bits Conversion rate 200KS s max Input impedance 10 000 MQ 6pF Over voltage prot
7. al GND External Trigger Input OI ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 13 Pin assignment for differential analog input es AI0 20 ATO Ant la e 2ALD E EN TA i BED EA az 3 le laz El B A3 4je i AI2 22 AI2 Any 5 le 23 Al3 24 Al 4 Aer je losas A7 a fe o 2546 e ase fs as Ase 8 9 losas E Anos He Sj 30 do E 12 a s o oar far aAam l A sale eja An p el 22 Al 12 ol as pe a AS MS og A e a E Wee e ETI A 7 e 9 Alls AI10 AI10 z e a e 91 26 AGND l AI11 AIIl ExtTrg Ble 3 D GNC mi AI13 AI13 as arias al aa 16 AI15 35 AIS 17 Analog Cmmon 36 Analog GND 18 Digital 5V output 37 Digital GND DE 777 jal KWANMMNI ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 14 2 8 Daughter Boards 2 8 1 DB1825 The DB 1825 is a daughter board designed for 32 channels AD cards such as ISO_AD32 or PCI 1802 Refer to Appendix A for DB 1825 user manual E DEERE CCE AEA 37pin cable 9 loclolaolocloldols o 2 kI 8 TILILIEI TLIE ogjojnojozjojzjol BSHEDOsHEo su 2 8 2 DB37 The DB 37 is a daughter board for D sub 37 pins It is designed for easv wire connection N gt fadededededededededed Sasdsasdsdedsdsdod 37pin cable nection 1 by 37 pin cable connection 2 direct connect l E E Ss I 8 i 2 8 3 DN37 The DN 37 is a daughter b
8. c 4 1 4 for details ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 24 3 4 Analog Signal Connection The ISO_AD32 can measure single ended or differential type analog input signal Some analog signal can be measured in both of single end or differential mode but some only can be measured in one of the single ended or differential mode The user must decide which mode is suitable for measurement In general there are 3 different analog signal connection method as shown in Fig to Fig3 The Figl is suitable for grounding source analog input signals The Fig2 can measure more channels than in the Fig but only suitable for large analog input signals The Fig3 is suitable for thermocouple and the Fig4 is suitable for floating source analog input signals Note In Fig3 the maximum common mode voltage between the analog input source and the AGND is 70Vp p so the user must make sure that the input signal is under specification first If the common mode voltage is over 70Vp p the input multiplexer will be damaged forever The simple way to select the input signal connection configuration is as below Grounding source input signal gt select Figl Thermocouple input signal gt select Fig3 Floating source input signal gt select Fig4 If Vin gt 0 1V and gain lt 10 and need more channels gt select Fig2 WN If the user can not make sure the characteristic of input signal the test steps are given as below 1
9. e SASEAR OAE AEN ESA aain Ae SIERA ALARI aa 25 ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 3 1 Introduction 1 1 General Description The ISO AD32H L H for high gain L for low gain is a bus type isolated 12 bit A D board for PC AT compatible computers The isolation inputs can operate with up to 500Vrms of common mode voltage The ISO AD32H L features a 200KHz 12 bit analog to digital converter on board 1 K byte FIFO buffer 32 singled ended or 16 differential analog input channels The analog input allows auto channel gain scan This board support gap free A D conversion at 200KHz sampling rates for single channel or 100KHz sampling rates for channel scan The Hands Off design permits all board parameters channel selection gain input type operating mode to be performed in software Once installed you will never have to take care it again The board s innovative design improve several drawbacks of the conventional isolated A D card Such as 1 The speed is faster up to 200K Hz The sampling rate can be programmable 3 On board FIFO buffer support gap free A D conversion and work well under NT and 95 environment 4 High channel count input can be implemented in half size ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 4 1 2 The Block Diagrams The block diagram of ISO AD32 series is shown below Fa Photo ueue isolated Low gain 1 2 4 8 E High Gain 1 10 100 1000 Analog
10. ect da BE Analog input are Analog input are differential type single ended type 16 channels max 32 channels max default 2 3 JP2 IRQ Channel Selection IRQ3 IRQA IRQ5 IRQ6 IRQ7 IRQ9 IRQ10 IRQ11 IRQ12 IRQ14 IRQ15 NC default ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 10 2 4 JP5 Wait State J Normal Speed ISA bus select default zero wait 2 5 VRs V1 AD offset adjustment VR2 AD gain adjustment VR3 5V adjustment VRA PGA offset adjustment The detail calibration steps are given in DOS software manual Sec 4 1 4 ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 11 2 6 I O Base Address Setting The ISO AD32 occupies 8 consecutive locations in I O address space from BASE to BASE 7 The default setting is 0x220 as following ON OL 1 A8 A7 AG A5 A4 NC Base Addr S eo a E ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 12 2 7 CN1 Connectors Pin assignment for single ended analog input Pin Assignment apo aro bo am l ap an fa an 1 ES s m y Ars 3 A ever 3 le e 21 A17 3 S a 22 alta 5 e SJ 2 Allg 38 lo e 24 Al20 fo as ja 8 2 a 25 at s e e 25422 s an a ams TA aed ET o as ps ama o tile 9 29 4125 NE era ale Al27 als 22 Alze 5 e e 3 Az fae le av nje Bee A aa fa Analog Common 136 Analog GND Digital 5V output EN Digit
11. ection 35V Accuracy 0 01 of reading 1 bit Linearity 1 bit On chip sample amp hold Zero drift 25ppm C of FS max ISO AD32H Input Range Bipolar 10V 5V 1V 0 5V 0 1V 0 05V 0 01V 0 005V Unipolar 0 10V 0 1V 0 0 1V 0 0 01V Bipolar V Unipolar V Throughput 1 0 5 5 10 125k s 10 5 0 5 1 100 50 0 05 0 1 1000 500 0 005 0 01 0 0 01 1k s ISO AD32L Input Range Bipolar 10V 5V 2 5V 1 25V 0 0625 Unipolar 0 10V 0 5V 0 2 5V 0 1 25V 0 5 8 0625 0 125 200K s Power Requirements 5V 850mA max General Environmental Operating temp 0 50 C Storage temp 20 C to 70 C Humility 0 to 90 non condensing Dimensions 173 mm x 122 mm ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 7 1 5 Product Check List In addition to this manual the package includes the following items e ISO AD32 multifunction card O One company floppy diskette or CD O One DOS software user s manual Attention If any of these items is missing or damaged please contact your local field agent Save the shipping materials and carton in case you want to ship or store the product in the future ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 8 2 Hardware Configuration 2 1 Board Layout ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 9 2 2 JP1 Single ended Differential Analog Input Type Sel
12. eses 9 ib BOARD GAY OUT trevi it A DA a toile tvesg costed ote AA tios 9 2 2 JP1 SINGLE ENDED DIFFERENTIAL ANALOG INPUT TYPE SELECT scceccsssesceseceeeeceeeeeceseeeeeaecaeeeeeneeeees 10 2 3 JP25 IRO CHANNEL SELECTION sie A Ae ee 10 PA E LA ASIA NN 11 UN MRS ii E A A e A ad 11 2 6 VO BASE ADDRESS SETTING sanini eenaa a E EA EA E EA EEN A E A 12 ZT NIN NN 13 2 07 DAUGHTER BOARDS U ia a A itiha ke A f a dl A IL niena ed 15 BOL DIBLSDI A ti n 15 20 29 DBI T A A A A A ta Ra OC A A A EEEE 15 DBD IN A e A bak au sath sas cectea RdA L neo labs blo 15 FUNCTION OPERATION s i i aid bene tkis ss tas sase odeesesunstocntessecessesesunnboedsesesedesesesubsssunacnsssesentsnsasoccdeseusescouess 16 3 1 AD CONVERSION OPERATIONS a B p GA p idad 16 3 1 1 The Configuration Code Table nnnnennn anna ananas nanna raa nanna nanna anna 16 3 1 2 Analog Input Type Selection sse eeeenennnnnzanannnnnnnnnnnnnnnnnnn arana nn ntnn nanna nmnn na nrnnnr tan rnntnnnanta na 17 3 13 The Input Signal Ranges ii terz jasar jista essar E E a EE EEE EE 18 314 The AD Gonversion Moderators tidad dede vee eaten 21 3 1 5 The Channel Scan Circular Scan QUEME los sensers near n rna n arana nanna tarana anna 22 ILO Trigger Methodsiiu nien A A A AA EE 23 3 27 DIAGNOSTIC PROGRAM conven ib ii A sp Ea 24 3 3 CALIBRATION i ches pe iena andere a a ri Ga idad 24 3 4 ANALOG SIGNAL CONNECTION vo ccic sceccsscskcecesicotecuvesecesceesevton Sosksncestent
13. ill reduce resolution only If the analog input is bipolar you must select bipolar configuration code to measure this signal ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 17 3 1 3 The Input Signal Range If the input range of analog signal is 1V you can measure this signal wih 10V 5V 2 5V and 1 25V configuration code setting The only difference is the resolution The resolution of 2 5V is 4 times higher than in 10V setting Select the correct configuration code will get the best resolution 3 1 3 1 The Gain Factor The analog input signal will be amplified by gain factor If the user wish to compute the real value the AD data must divided with the gain factor The general real value computation functions is given as follows double AD32L ComputeRealValueBipolar WORD wAdConfig WORD wAdHex i WORD wZERO 2048 double dAMAX dfVal switch wAdConfig case 0x00 dMAX 5 0 break case 0x10 dMAX 2 5 break case 0x20 dfMAX 1 25 break case 0x30 dfMAX 0 625 break case 0x80 dfMAX 10 0 break case 0x90 dfMAX 5 0 break case OxAO dfMAX 2 5 break case OxBO dfMAX 1 25 break default return ConfigCodeError dfVal double wAdHex wZERO 2048 0 df MAX return dfVal ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 18 double AD32L_ComputeRealValueUnipola WORD wAdConfig WORD wAdHex WORD wZERO 0 double dfMAX dfVal
14. mmon A D CHnHI A D CHnLO Analog Common Signal Shielding e Signal shielding connections in Fig to Fig4 are all the same O Use single point connection to frame ground not AGND or DGND Vin ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 28 Appendix A The DB 1825 user manual A 1 PCB layout for connecting to ISO_AD32 for differential input R 0 ohm DB 1825 Acom i4 14 Acom 12 12 acom jio Hos acom fs comio 15 acom 13 13 Lacom sv TEAY OSI 01 SU1J99UU09 10 1q 1688 44 0 3ULIIUUOI 10 ZA com lan Lis facom 29 fis acom 7 fii acom J o Q O O 5 5 Q O g 5 da es O U ii 00 oo 6 J com 22 le lacomlzo ls lacomlis fe facomfis lo Pin assignment of D1 same as CN1 of ISO AD32 Pin assignment of D2 same as CN1 of DB 889D ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 29 A 2 PCB layout for connecting to PCI 1802 for differential input R 0 ohm DB 1825 ra TO8 l IOd 0 3UNIIUUOI 10 1688 44 0 SUNJ9UUO0I 10 ZA pe Apgar r lagndls s fagna ve fagna fi jgndls ler agaa ler fagna f agnajo los J N S 5 Q S O tel g B ge ek J E 00 oo NO J Aenal lo agapo le agais fe agnalis lo Pin assignment of D1 same as CON3 of PCI 1802 Pin assignment of D2 same as CN1 of DB 889D ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10
15. n 123123123 Three channel scan 251251251 Three channel scan 252252252 Three channel scan 222222222 ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 22 3 1 6 Trigger Methods The trigger methods are giving as following 1 Internal trigger software trigger pacer trigger 2 External trigger post trigger middle trigger pre trigger Pacer or software trigger External trigger Start End Start End Internal trigger mode Post trigger mode External trigger External trigger i Start End t Start Middle trigger mode Pre trigger mode Fig 1 2 Trigger methods of ISO AD32 The software trigger is the easy way and isn t suitable for input wave form reconstruction The pacer trigger provide a programmable pacer for fixed time interval AD sampling therefore it is suitable for input wave form reconstruction The external trigger must used with pacer timer This pacer timer is same as the internal pacer trigger timer Both the internal pacer trigger and external trigger use the same pacer timer The external trigger can be post trigger middle trigger or pre trigger software programmable The user can select one of these trigger Refer to software manual for details ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 23 3 2 Diagnostic Program Refer to ISO AD32 DOS software manual Chapter 4 for details 3 3 Calibration Refer to ISO AD32 DOS software manual Se
16. oard for 37 pins DIN Rail Mounting It is designed for easv wire connection 37pin cable E ni a IATA rr E i ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 15 3 Function Operation 3 1 AD Conversion Operation The user do not need to know about the detail control of AD operations the embedded controller will handle the details 3 1 1 The Configuration Code Table ISO AD32L Input Range Configuration Code Table Gain Bipolar Bipolar Nn ISO AD32 Hardware Manual Ver 1 0 Feb 1998 IPH 012 10 16 ISO AD32H Input Range Configuration Code Table Bipolar H 0 005V 1000 Bipolar Bipolar Bipolar H ov Bipolar 3 1 2 Analog Input Type Selection The analog input signal can be single ended or differential If select single ended there can be 32 channels max If select differential there can be only 16 channels max But some signal can not be connected as single ended input such as thermocouple couple sensor Refer to Sec 3 7 for analog signal input type selection The embedded control can read back the JP1 setting If the software tell the embedded controller to perform single ended operation and the JP1 in the wrong setting the embedded controller will return a error code Refer to software manual for details 3 1 2 1 Unipolar Bipolar If the analog input signal is unipolar you can measure this signal with bipolar setting this w
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