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EXCEPT FOR THE EXPRESS WARRANTIES ABOVE KEITHLEY DISCLAIMS ALL OTHER WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION, ALL IMPLIED WARRANTIES OF MERCHANT-
ABILITY AND FITNESS FOR A PARTICULAR PURPOSE. KEITHLEY DISCLAIMS ALL WARRANTIES WITH
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Keithley Instruments, Inc.

28775 Aurora Road • Cleveland, Ohio 44139 • 440-248-0400 • Fax: 440-248-6168

1-888-KEITHLEY (534-8453) • www.keithley.com

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Содержание PCIP-DMM/A

Страница 1: ...erutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Demos In st...

Страница 2: ..._ I 1 1 i _ _ PCIP DMM A User s Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 3: ...oration Information furnished by Keithley MetraByte Corporation is believed to be accurate and reliable However no responsibility is assumed by MetraByte Corporation for its use nor for any infringeme...

Страница 4: ...Aurora Road Cleveland OH 44139 Technical Support 1 888 KEITHLEY Monday Friday 8 00 a m to 5 00 p m EST Fax 440 248 6168 Visit our website at http www keithley com Artisan Technology Group Quality Inst...

Страница 5: ...therefore Keithley does not warrant that operation of the Keithley Software will be uninterrupted or error free and or that the Keithley Software will be adequate for the customer s intended applicati...

Страница 6: ...CHINA Yuan Chen Xin Building Room 705 12Yumin Road Dewai Madian Beijing 100029 8610 6202 2886 Fax 8610 6202 2892 FINLAND Tiet j ntie 2 02130 Espoo Phone 09 54 75 08 10 Fax 09 25 10 51 00 FRANCE 3 all...

Страница 7: ...ry II as described in the International Electrotechnical Commission IEC Standard IEC 60664 Most mea surement control and data I O signals are Installation Category I and must not be directly connected...

Страница 8: ...in the manual The symbol on an instrument shows that it can source or measure 1000 volts or more including the combined effect of normal and common mode voltages Use standard safety precautions to av...

Страница 9: ...I I I 1 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Страница 10: ...HE PCIP DMM SOFTWARE 3 2 3 4 ADDING ANSLSYS TO CONFIGSYS 3 2 3 5 INSTALLING THE DEVICE DRIVERS 3 3 3 6 ADDITIONAL PCIP DMM PROGRAMS 3 23 CHARTER 4 OPERATING THE PCIP DMM 4 1 GENERAL 4 1 4 2 USING A MO...

Страница 11: ...7 2 7 4 CALIBRATION 7 9 7 5 FUSE REPLACEMENT 7 10 7 6 WARRANTY INFORMATION 7 10 7 7 RETURN TO FACTORY INFORMATION 7 11 APPENDIX A INSTALLING MULTIPLE PCIP TYPE INSTRUMENTS APPENDIX B REGISTER DESCRIP...

Страница 12: ...strument Select 3 12 Confhming the Key System Setup 3 13 Generating the DMM SYS Path 3 14 3 10 Pop Up Key Def mittion 3 15 3 11 Selecting a Base Address 3 16 3 12 Confirmin the PCIP DMM Setup 3 17 3 1...

Страница 13: ...g is selected the PUP DMM A can be programmed to record up to 999999 readings at a rate of l 2 seconds to 99 9 minutes between readings Automatic logging may be setup to run in the background while th...

Страница 14: ...ed to its input The signal is then routed to the analog to digital A D converter DC signals are routed directly to the A D converter Current Measurements Current Measurements are made between the MA a...

Страница 15: ...lly provided on 5 l 4 diskettes It is optionally available on 3 1 Z diskettes 7 4 SPEClFICATlONS This section lists the operating specifications for the PCIP DMM A board DC Voltage Range Resolution Ac...

Страница 16: ...200 counts 1 of FS and to the stated percent 30 counts 0 15 crest factor ratio of peak to RhG up to 3 l allowable add 0 1 for 3 l crest factor Resistance Range 2ccl ohm 2 KOhm 20 KOhm 200 KOhm 2 MOhm...

Страница 17: ...ction 0 5A 100 Volts AC Current above 1 of full scale Range 2mA IzomA Iti I1 Id I 02v 1 1200mA Resolution Accuracy of reading digits 1 Year 0 1 pA I 1 Id Overload 0 5 A 100 Volts Conversion Rate 2 5 R...

Страница 18: ...BUS XT AT or compatible Physical Size 13 25 X 4 20 Weight 11 oz Environmental Operating Temperature Range 0 to 50oC Storage Temperature Range 20 to 70 C Humidity 0 to 90 non condensing PCIP DMM A Use...

Страница 19: ...IBM PC XT AT or IBM E 2 model 25 30 TCP BAN TCP DBB Dual banana clip plug to clip ball test leads for direct plug in to PCIP DMM A s terminal posts Dual banana plug to BNC adapter Allows connection o...

Страница 20: ...tells you how to make copies of the PCIP DMM A Distribution Diskettes Additionally the chapter describes how to install the device drivers and modify your CONFIG SYS file This chapter also describes h...

Страница 21: ...AND INSPECTION After you unpack the board from its outer shipping material 1 Remove the item from its packing material while placing one hand firmly on a metal portion of the system chassis This will...

Страница 22: ...ystem configura tion and Operator s Manual for available addresses The Base Address Switch is a seven position DIP switch located in the lower right hand comer of the board See Figure 2 l To set the a...

Страница 23: ...puter WARNING DO NOT ATTEMPT TO INSERT OR REMOVE ANY ADAPTER BOARD WITH THE COMPUTER POWER ON THIS COULD CAUSE DAMAGE TO YOUR COMPUTER IBM PC XT AT To install the PCIP DMM A Board 1 Turn the power to...

Страница 24: ...ddress as described in section 2 3 Align the gold edge connector with the edge socket and the back adapter place with the adapter plate screw Gently press the board downward into the socket Re install...

Страница 25: ...edge of the card and are color coded for easy identification Refer to Figure 2 l The connectors and their functions are as listed in Table 2 1 Table 2 1 Connectors IColor I Connector I Function Name I...

Страница 26: ...outlined below 1 2 3 4 5 Turn on your computer and display Switch to the directory containing your DISKCOPY EXE DO 3 utility At the DOS prompt type DISKCOPY source drive designator copy drive designa...

Страница 27: ...irectory is called DMM At the DOS prompt change to the root directory or other directory you want the PCIP DMM A directory to be branched off from i e type cd Next create the DMM directory Type mmir d...

Страница 28: ...from the DOS command line After the drivers have been unloaded using this technique 500 bytes will remain memory resident We suggest creating batch files to invoke the load and unload options quickly...

Страница 29: ...e PCIP DMM A into keyboard entry mode Refer to the following section for more information mis the name of the key combination Ctrlj and or Alt lus one of the following through 0 a through F10 Jthrough...

Страница 30: ...PK p EA b Where PK designates the Pop Up Menu Key Whenever the indicated key or key combi nation is pressed the instrument s Pop Up Setup Menu will be displayed Each type of instrument must be assigne...

Страница 31: ...system start up screens are displayed a screen similar to Figure 3 1 should appear t VI SYS loaded o Help Key is ALT H o Instrument Select Key is ALT TAB o Mode Select Key is ALT M DMM SYS loaded o Po...

Страница 32: ...er the appropriate letter i e C PCIP DMM Setup Program I Drive letter for CONFIG SYS file C Select Boot Drive Enter a drive letter where New Revised CONFIG SYS is to be placed Then hit ENTER Hitting E...

Страница 33: ...Generating the Path Name to VLSYS 3 Specify the type of monitor you are using MONO or COLOR PCIP DMM Setup Program Drive letter for CONFIG SYS file C Full path name to VI SYS C DMM Declare type of mon...

Страница 34: ...e default Mode Select Key is x E If you have other PCIF boards installed in your computer the Insfrument SelectKey is used to toggle between their setup menus The currently selected instrument s menu...

Страница 35: ...name to VI SYS C DMM Declare type of monitor COLOR HELP KEY definition ALT Help Key Definition The Help Key is defined by spelling out either or both the legal SHIFT KEYS CTPL and ALT plus 1 of the f...

Страница 36: ...ing out either or both the legal SHIFT KEYS CTRL and UT plus 1 of the following character keys A through 2 Fl through FlO 0 through 9 TAB ESC The default MODE SELECT KEY is ALT M The current MODE SELE...

Страница 37: ...ugh 2 Fl through FlO 0 through 9 TAB ESC The default INSTRUMENT SELECT KEY is ALT TAR The current INSTRUMENT SELEXT KEY is CTRD I Enter one of the following 0 The definition for INSTRUMENT SELECT KEY...

Страница 38: ...inition CTRL I VI Setup CONFIRMATION Enter one of the following 0 IN if above entries are NOT OK 0 ENTER to continue 0 ESC to exit setup Figure 3 8 Confirming the System Setup 5 Next the program will...

Страница 39: ...then asks you to select a Pop Up Menu Key as shown in Figure 3 10 Whenever the Pop Up Menu Key is pressed the instrument s Pop Up Setup Menu will be displayed It is suggested that each type of instrum...

Страница 40: ...following 0 The definition for POP UP KEY followed by ENTER 0 ENTER to use default POP UP KEY 0 ESC to end entrv Figure 3 10 Pop Up Key Definition 7 You now will be asked for the Base Address of the...

Страница 41: ...ess is LB310 The current PCIP DMM Ease Address is hH310 Enter one of the following o The BASE ADDRESS to use for the PCIP DKM followed by ENTER 0 ENTER to use default BASE ADDRESS 0 ESC to exit Setup...

Страница 42: ...to exit setup Figure 3 12 Confirming the PCIP DMM A Setup 9 The program will back up your present CONFIG SYS file to the file CONFIG BAK and write the new set up information to the CONFIG SYS File Th...

Страница 43: ...uffers 10 Figure 3 13 Creation of the new CONFZG SYS Backing old CONFIG SYS file to CONFIG BAX and creating new CONFIG SYS Backup file already exists Delete it Y N DEVICE C SYS ANSI SYS DEVICE c v sYS...

Страница 44: ...Appendix A if you have multiple PCF DMM A s or another MetraByte PCIP instrument installed Syntax Conventions The following syntax conventions are used in this section 1 Anything enclosed within curl...

Страница 45: ...y combination following through 0 F through It must be spelled out for example Fl assigns the function key I to be the Mode Select Key The default Mode Select Key is Alt defines the Instrument Select...

Страница 46: ...nction key Assigning one key will most likely wilI disable that key for use in other software applications BA defines the base address setting for the PCIP DMM A If this parameter is not given the def...

Страница 47: ...VER FILENAME is VLSYS or DMM SYS Examples US D PCIP VI SYS US C DMM DMM SYS VLSYS loads into memory in two portions a resident portion and a transient por tion The resident portion occupies about 500...

Страница 48: ...oose to experiment with this procedure the VLSYS driver must be loaded first It is important that you specify the path to the driver files when calling LS COM from the command line If no path is speci...

Страница 49: ...e format Only Base Addresses greater than or equal to 256 decimal 100 hex are valid If an invalid base address is entered a beep sounds and a base address is prompted for again If a hex value is given...

Страница 50: ...address Check switch setting or press Enter to try again 4 If the board is installed at the correct Base Address and you pressed the following question will appear Do you want to archive calibration c...

Страница 51: ...can be used to set the operating parameters of the PClI DMM A Once the PCIP DMM A s setup display is popped up the mouse will be enabled Be sure to load the mouse driver before bringing up the PCIP D...

Страница 52: ...Panel PCIP DMM HELP ALT H Keyboard Relative Hold setup Log ManualLog I 99 99 jl q E j 2OOm 12 0 1 200 AUTO c Current Sample Base o omo Samples saved Figure 4 1 Setup Panel NOTE At this point the data...

Страница 53: ...Operating Modes The PCIP DMM A s operating modes consist of Keyboard Enables keyboard control When Keyboard is selected the mouse is disabled and input is allowed from the keyboard only To ter minate...

Страница 54: ...ta is logged to a specified file using the format described in Chapter 5 7 PCIPDMM HELP ALTH Keyboard Log File Name C DMM DMM DAT Figure 4 2 The Data Logging Panel The Keyboard option works as describ...

Страница 55: ...ation If Readout format is chosen data is written to the file exactly as it appears on the display with the unit of measure appended The default format is Readout Log File Name This selects the file t...

Страница 56: ...Munud D Y logging Select ManualLog from the Setup Panel each time you want to log data Automatic Dub Logging Select StartLog from ihe Setuo Panel The Keyword menu list will change to offer these opti...

Страница 57: ...f data The elements of these data sets are discussed in the following paragraphs A commented example data file is given in section 5 4 5 3 1 FILE HEADER The data file header information is entered as...

Страница 58: ...d yy is year This date is logged from your computer s calendar The time at which the samples were started appears in the format M L IUUX ss where hh is hours mmis minutes and ss is seconds This time i...

Страница 59: ...9 2 000 05 VDC 000025 14 24 15 7 000 06 VDC Units WC Start Data 000001 08 27 90 13 48 15 2 0 22803 0 000002 08 27 90 13 48 21 6 0 22863 0 000003 08 27 90 13 48 26 8 0 22903 0 End Figure 5 2 Data Secti...

Страница 60: ...ided by your computer s clock This field represents standard time format where N is hours nunis minutes and ss s is seconds b bbbb r rrrr uuuu is the actual sample reading This will appear either in R...

Страница 61: ...Instrument PCIP DMM Date 08 27 90 Time 13 48 11 Samples 000005 Log Mode Auto Units VDC Start Data 000001 08 27 90 13 48 15 0 22803 0 000002 08 27 90 13 48 21 0 2286E O 000003 08 27 90 13 48 26 0 2290...

Страница 62: ...chapter also contains a short procedure for incorporating the commands into a pro gram Two sample programs written in C and BASIC are given 6 2 LANGUAGE INDEPENDENT INTERFACE COMMANDS The PCIP DMM A...

Страница 63: ...IEVE ERROR ONE MUST READ FROM TEE DEVICE 1010 INPUT 2 N LINE INPUT 2 A LINE INPUT P B RETRIEVEERROR NUMBFtR AND MESSAGE 1020 PRINT DMM Error Message N DISPLAY ERROR MESSAGE 1030 PRINT ERROR w B 1040 P...

Страница 64: ...iginalCoamand s OrigComaand if fgets ErrorBxplain 128 COUNT NULL exit 79 printf rror Explanation d ErrorBxplain rewind CODNT Rewind Puts Device Back In Output Mode 1 Figure 6 2 Opening the Language In...

Страница 65: ...SEt Wad LOG Format REad LOG DAte REad LOG File NAme REad LOG File Mode REad LOG STatus Read FWnge REad VAlue REad RELative REad DAte SEt range value units current type SEt LOG Mode MAnual Auto SEt LO...

Страница 66: ...This command is used to remove an instrument s operating panel from the screen If multi ple instruments are installed the panel appearing on the top will be hidden Otherwise the instrument last opened...

Страница 67: ...x is set to OrJ the PCIP DMM A will maintain the current reading and no other measurements will be performed Examples hold on Associated Error Messages 51 Unknown character encountered 61 Illegal word...

Страница 68: ...sociated Error Messages 71 Unknown keyword detected use ON or OFf READ DATF Upon execution of this command the date of the last calibration is returned by an input command syntax REad DAte Returns Thi...

Страница 69: ...ages 51 Unknown character encountered 55 Keyword requires RJSAD before it 54 Illegal word after READ command READ LOG MODF This command returns the current logging mode of the PCIP DMh4 A syntax REadL...

Страница 70: ...ra Associated Error Messages 72 Unknown keyword following FLEad LOG command READ LOG SAMPLES SET This command is allowed in automatic logging mode only It returns the currently pro grammed number of s...

Страница 71: ...LOG conmand 74 Unknown keyword detected use SEt or SAved READ LOG FORMAT This command returns the currently selected format of data written to a logging file syntax REad LOG Format Returns This routin...

Страница 72: ...essages 72 Unknown keyword following REad LOG comnand READ LOG FILE NAMF This command returns the name of the file to which data is logged syntax mad LOG File NAme Returns The character string returne...

Страница 73: ...ples REad LOG File Mode Associated Error Messages 72 Unknown keyword following REad LOG command 73 Unknown keyword detected use NAme or MOde READ LOG STATUS This command returns the current data loggi...

Страница 74: ...he returned values have the following meanings 0 lowest to 3 highest for volts 0 lowest to 2 highest for amps 0 lowest to 4 highest for ohms Examples re ra rea range read range Associated Error Messag...

Страница 75: ...measured value minusthebase value Examples re rel read relative rea relat Associated Error Messages 51 Unknown character encountered 55 Keyword requires READ before it 54 Illegal word after READ comma...

Страница 76: ...ommand 79 Value specified or current reading is out of range SET LOG MODF This command is used to select the Data Logging Mode syntax SEt LOG MOde x Parameters x can be Automatic or MAnual Examples Se...

Страница 77: ...following LOG command 76 Number Out of Range 0 5 r 5994 0 in seconds 77 Operation not allowed in Manual Mode 82 Operation not allowed when automatic logging is active SET f OG SAMPLES This command de...

Страница 78: ...nknown keyword following LOG command 67 Unknown keyword detected use Scientific or REadout 82 Operation not allowed when automatic logging is active SET LOG DATE Enable Disable Date Stamping of the sa...

Страница 79: ...log fi na c dmm dmm dat Specifies the file to be used for logging as the dmm dat file exis ting in the dmm directory on the C drive log file name a data dat Specifies the file to be used for logging...

Страница 80: ...n to exists the existing data will be overwritten with new data If the file does not exist it will be created Append If the specified file already exists the new data will be appended to it Otherwise...

Страница 81: ...lowed in Automatic Mode 82 Operation not allowed when automatic logging is active SET LOG START STOP This command starts stops automatic data logging syntax SEt LOG x Parameters x can be STArt or STOP...

Страница 82: ...set log pause on Enables pause function log pa of Resumes automatic data logging Associated Error Messages 7 0 Unknown keyword following LOG command 71 Unknown keyword detected use ON or OFf 77 Opera...

Страница 83: ...can be defined as MV millivolts V Volts MA milliamps 0 ohms KO killiohms and MO megaohms current tw is the type of current or voltage Choices are A ac or D dc Examples set 20 v AC set au ma 20 KO Set...

Страница 84: ...or enable the relative mode where OFF disables relative mode and ON enables relative mode Examples Relative OFF Disables relative mode Relative On Enables relative mode Because no offset value has bee...

Страница 85: ...or DMM are selected the main setup panel will appear If 2 or SETup are used the logging panel will appear If no parameter is specified the main setup panel is displayed Note If show 2 or show SETUP is...

Страница 86: ...represents a true measurement and not just the most recent result which could have already been reported syntax WAIT x Parameters x can be ON or OFF If the wait command is enabled ON the value returne...

Страница 87: ...n in BASIC will not execute a direct screen I O It should be noted however that some BASICS perform a direct screen I O when scrolling up the screen In this instance pop the instrument down with a Hid...

Страница 88: ...o ensure that the command is flushed from DOS buffer immediately 6 4 PROGRAMMING HlNTS This section provides a few programming hints for using the PCIP DMM A device driver with high level languages su...

Страница 89: ...ill flush the output buffer and write an output string immediately Otherwise the output strings will be buffered and the device may fail due to overflow Error Strings 1 When f f lush is called an EOF...

Страница 90: ...fflush DMM EOF G Error 1 fine MaxErrorSize 255 longest possible error string CalInputString StringPointer A Function That Inputs char StringPointer A String of ASCII characters 1 From Device DMM rewi...

Страница 91: ...output buffer and write an output string immediately Otherwise the output strings will be buffered and the device may fail due to overflow Error Strings 1 When f flush is called an EOF will be return...

Страница 92: ...CommandString if fflush DMM EOF GetError 1 fine MaxErrorSize 255 CalInputString StringPointer char StringPointer 1 longest possible error string A Function That Inputs A String of ASCII characters Fro...

Страница 93: ...peration has been executed the ERRS field for file Ix will be non zero 3 After an error occurs the ERRS field for file x must be cleared 4 To detect runtime errors the TRAP field for file x must be se...

Страница 94: ...RUE Trap Errors Instead of Exit to DOS readln X ErrNum readln X AStr readln X BStr writeln char 7 BELL Driver Error Has Occurred writeln 1 Device Error Number 3 ErrNum writeln 2 Error BStr writeln 3 O...

Страница 95: ...be RESET 3 REWRITE the OUTPUT file variable I O Operations 1 Use Wrifeln to write commands to the device rather than write 2 If an error occurs after an I O operation has been executed the IOResult wi...

Страница 96: ...curred I writeln 1 Device Error Number ErrNum writeln 2 Error 3 I BStr writeln 3 On Command Line of 3 Astr END PROCEDURE OutputCommand STR String l28 BEGIN writeln DEVODT Str if IOResult 0 Then GetErr...

Страница 97: ...sed assuming equipment accuracy is at least equal to the specifications listed in Table 7 1 Table 7 l Test Equipment Specifications Manufacturer EDC EDC JZJX Model Description Specifications 520A Prec...

Страница 98: ...ay also be performed whenever the instrument accuracy is suspect or following calibration If performance on any of the ranges or functions is incon sistent with specifications calibration should be pe...

Страница 99: ...hat the reading is 0 0000 v 0 0001v Apply a positive 1 0000 V to the HI and LO input terminals The reading must be within the limits specified in Table 7 2 Select the 20V dc range on the PCIP DMM A Se...

Страница 100: ...NPUT terminals of the PCIP DMM A as shown in Figure 7 3 Set the calibrator to output 100 00 mVac at a frequency of 100 Hz Verify that the reading is within the limits specified in Table 7 3 Repeat the...

Страница 101: ...10 ooo v 200v 90 00 v IAllowable Readings lOOH 1oKI k 99 00 to 101 00 97 00 to la3 00 0 9900 to 1 0100 97Kl to 1 a300 9 900 to 10 100 9 700 to 10 300 89 00 to 91 00 87 30 to 92 70 7 3 3 Resistance Acc...

Страница 102: ...etting the zero on the particular range similar to the procedure described in step 2 above and then by applying the required value specified in Table 7 4 and verifying that the readings are within the...

Страница 103: ...the limits specified in Table 7 5 Select the 20 mA range on the PCIP DMM A Set the calibrator to output 7 000 mA at a frequency of 100 Hz Verify that the displayed reading is within the limits specifi...

Страница 104: ...the PCIP DMM A Set the calibrator to output 0 000 mA and enable the relative REL mode Verify that the displayed reading is 0 000 0 001 Set the calibrator to output 10 000 mA Verify that the displayed...

Страница 105: ...PCIP DMM A s non volatile memory Be sure to archive the original constants to a disk file using the U7 IZJIY EXE program found on the PCIP DMM A Distribution Disk Refer to section 3 6 for more informa...

Страница 106: ...P DMM diskette Any calibration that has been archived can be restored after using the same UTILITY EXE program Figure 7 5 CALDMM Start Up Screen 7 5 FUSE REPLACEMENT A protection fuse is mounted in a...

Страница 107: ...he phone If they ascertain that the unit has to be returned to the factory for repair they will issue a Return Material Authorization RMA number Note that if the board is to be repaired under warranty...

Страница 108: ...nd ship it back to Repair Department Keithley MetraByte Corporation 440 Myles Standish Boulevard Taunton Massachusetts 02780 Telephone 508 880 3000 Telex 503989 FAX 508 880 0179 Be sure to reference y...

Страница 109: ...u to display several Pop Up Menus at once Using PCIPMOD EXE Table 1 names the PCIP device type supported by PCIPMOD EXE Table I Devices and fheir SHOWNAMES SHOWNAME DEVICE DESCRIM ION NAME PCIP AWFG X...

Страница 110: ...SYS ENTER DEVICE TO MODIFY 2 Enter the name of and path to the ORImAT adevice driver f For example if you have two PCIP DMM s and the PCIP Dh4M driver files are loaded on the D drive under the directo...

Страница 111: ...xample you could enter VI You will then be prompted for the new driver filename and its path Enter the name to be used for the New Driver Please include the drive and complete path of where the driver...

Страница 112: ...n the PCIP DMM A Utility Disk The information provided in this section is provided for background purposes Table B l Register Map Location Base Address 0 Description Read Least significant byte from A...

Страница 113: ...s 7 Read Most Significant Byte from A D This register contains the data in the most significant byte from the A D as shown in Figure B Z NOTE To convert to correct reading convert the 16bits to decima...

Страница 114: ...s conversions without a command from the software Each time a new mode or range is selected the D7 bit must also be programmed for the correct mode D6 The setting of this bit determines whether a resi...

Страница 115: ...e of an unknown resistance requires two mea surements First the reference voltage must be measured Bits D2 Dl and DO are set to 100 The two bytes of data which are read back are converted to a voltage...

Страница 116: ...6 Table B 3 D2 DO Settings Do 1Descrbtion AC Voltage AC Current DC Voltage DC Current Reference Voltage Unknown Resistance Not Used Not Used Artisan Technology Group Quality Instrumentation Guarantee...

Страница 117: ...ates asingle A D conversion Base Address 3 Read Read Calibration Data DS of this register has the calibration data Note that data from the Calibration RAM s is clocked out serially onto the bus Each o...

Страница 118: ...tive polarity is used Otherwise when the bit is set to 1 a negative polarity exists 07 w x 0 I 0 x x Figure B 4 ReadA D Polarity Base Address 4 Write Deselect Calibration NOVRAM Writing to this regist...

Страница 119: ...93 07 34 GREAT BRITAIN Unit 2 Commerce Park Brunel Road Theale Berkshire RG7 4AB 0118 929 7500 Fax 0118 929 7519 INDIA Flat 2B Willocrissa 14 Rest House Crescent Bangalore 560 001 91 80 509 1320 21 F...

Страница 120: ...uipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentat...

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