102 | HP 34970A instruction

Chapter 4 Features and Functions

General Measurement Configuration

∙exx Vxytvx bxt”: Specify the resolution in the same units

as the measurement function, ” ux w”z”. For example, if the function is dc volts, specify the resolution in volts. For frequency, specify the resolution in hertz.

You can select the resolution using parameters in the MEASure? and CONFigure commands. For example, the following statement selects the 10 Vdc range with 41⁄2 digits of resolution on channel 301.

CONF:VOLT:DC 10,0.001,(@301)

The following statement selects the 1 A range with 61⁄2 digits of resolution on channel 221.

MEAS:CURR:AC? 1,1E-6,(@221)

You can also select the resolution using the SENSe commands. For example, the following statement specifies a 4-wire ohms measurement with 100Ω of resolution on channel 103.

SENS:FRES:RES 100,(@103)

102

Image 101

HP 34970A manual 102

Contents

Ow INURFg k D C C v h Fo Y b krPage No Changes Scan Use the Menu to Fo Y k Zy y Yh AFD7P HS y Yy y Y y y Yh R ∙ d Ks GHPDEc FDe c p Ks GHPDICLc feh p Ks GHPDGc FDe CiKs GHPDHc H w p ∙ d BHE8 Ks GHPDMc p pKs GHPDOc HDe vg F7o r8 Fo Delhax 6 8 a Express Exchange Hs r Contents Contents Contents Contents Page Shift w To install the software, see User’s Guide5 Service Guide5 Quick Reference Guide5To Prepare the Instrument for Use Instrument does not turn on properly, see Settings Control Panel Installing HP BenchLink Data Logger SoftwareAdd/Remove Programs Install/Uninstall File Run fww xw \setup 0H1 Wzw To Connect Wiring to a Module Ml lil l To Set the Time and Date Jyw To Configure a Channel for Scanning Qw z wz zyw Ww yw Yz yw wy 877 $6772 To Copy a Channel Configuration Yzz Z3 w wwz yz w yw3 ywz w zw wz Zz yw z w w3 w To Close a Channel Hq FGPN8a t g If the Instrument Does Not Turn OnUpt 9AN w 9A8 w Zwx 4 y Yy ww Bench-top viewing positions To Adjust the Carrying Handle To Rack Mount the Instrument Quick Start Page Page X xz Zx x Front-Panel Menu Reference Configure system-related instrument parameters To Monitor a Single Channel To Set a Scan Interval 1759$/6&$1 To Apply Mx+B Scaling to Measurements $%/$6/%6 + ,$/$5021 To Configure Alarm Limits To Configure Alarm Limits Ty H To Read a Digital Input Port To Write to a Digital Output Port 7 h k To Read the Totalizer Count $567 To Output a DC Voltage +3,% To Configure the Remote Interface 91,%,76 To Store the Instrument State +$1*6$9Page Computer System Advantages Disadvantages Data Acquisition System Overview HP BenchLink Data Logger Fo Y k 4yx Wg AFD7O Xx x AFD7O Sdd5 l Xz x x EFC STcaLm p Model Number Module Name Common Uses Signal Routing Cable Type Common Uses Comments System Cabling and Connections starting on Kxz zx x z Kzx Z3 x z x R3 U3 b5 Relay Cycle Count on Signal Routing and Switching N7v 2rc3 l HD8S7v l D7v X zzx 87 dW X x zx3 Y z z y5 Measurement Input Sdd’s signal-conditioning OSR5 Scan Count GND HL8 BWa3 Y zx Xx5 p zx x x z x x zx x z5 HH8 Control Output FB W 2 bWa ELI Features and Functions Features and Functions Scpi Language Conventions Scpi Language Conventions Scanning Scanning Scanning Scanning Power Fails Scanning Fxx xx tz tzx 978 vt Yt z xx Scan Count Set the scan interval to 5 seconds Select the interval timer configurationSweep the scan list 2 times Initiate the scan Group Execute Trigger Select the bus once configuration∙ Front-Panel Operation See Scan Count on page 86 for more information Ext Trig ConnectorSelect the external trigger configuration On page 86 for more information Sx wxt vyzz tw z ttxyx Alarm Limits starting on Fxxx vt 9 Fxxv x ttvztEx tt Mt Fxxv tx ∙ exx Vxytvx bxt Sctxt Scanning CH Delay Time AC Filter Channel Delay Integration Time Channel DelayRange Channel Delay ∙ Sctxt Readings Gt zzxw Twz vtxTtwz vtx Aux twz x vtx Single-Channel Monitoring Single-Channel Monitoring ROUTMONDATA? Scanning With External Instruments Scanning With External Instruments Scanning With External Instruments Fxvx vtx twvx Fxxv t tFx t t a xvw Fxx t General Measurement Configuration General Measurement Configuration Change the range setting This is the 10 Vdc range, 51⁄2 digits are displayed 101 102 WX c Integration Time Resolution Digits Bits 104 105 Temperature Measurement Configuration Temperature Measurement Configuration Temperature Measurement Configuration Temperature , Thermocouple 109 To connect an RTD to the module’s screw terminals, see MoX g 111 ∙ Remote Interface Operation You can use the MEASure? or To connect a thermistor to the module’s screw terminals, see Voltage Measurement Configuration Voltage Measurement ConfigurationXW c Mx wv tzx tx Mx tv tzx tw tv UW f To connect resistances to the module’s screw terminals, see Resistance Measurement ConfigurationResistance Measurement Configuration Applies to ac current and ac voltage measurements only Current Measurement ConfigurationCurrent Measurement Configuration 117 Sensfreqranglow 3,@203 Select the slow timeout 3 Hz Frequency Measurement ConfigurationFrequency Measurement Configuration Mx+B Scaling Mx+B Scaling Strain Gage Measurements on Vy x x tx tux Xtx x 121 Alarm Limits Alarm Limits Ux yzx tz x y Using the Alarm Output Lines on Then, choose from the following alarm conditions Alarm queue is cleared when you read the alarms 126 127 Alarms Connector Oxt y tt Otz x y x x vtx x x vtzxOxt tt 130 131 Result no alarm generated Calccompmask command decimalPt tw y /wxvt 8=B0 Or result Digital Input Operations Digital Input Operations Mww 79 xtw t ExtwExtw u Totalizer Operations Totalizer Operations 136 137 Digital Output Operations Digital Output Operations X vxM Xx / PMO vt05 DAC Output OperationsDAC Output Operations System-Related Operations System-Related Operations 141 Extw tx x Vx z Xt t z uxx Turns on. See the Uc =EC7M fxvx TwxExx Vxytvx bxt Returns 0 if the self-test is successful or 1 if it fails 144 Fxt Wx 83 8EEC Fxx HEWLETT-PACKARD,34901A,0,X.X System-Related Operations 148 Vtxx fOcV yx ytx5 NWkc f BkcV U Remote Interface ConfigurationRemote Interface Configuration 151 Vt xx utw x ytx NDC5KDC5 Lt vx y vxw y y5 3mnCDC5 154 Calibration Overview Calibration Overview 156 Hv w vwx 158 159 Factory Reset State Factory Reset State Instrument Preset State Instrument Preset State Multiplexer Module Default Settings Multiplexer Module Default Settings Sx xvyvt xtv 4w3 yx x x xv vt E5 Module OverviewModule Overview HP 34901A 20-Channel Multiplexer HP 34901A 20-Channel Multiplexer Name Function Comments Slot Number HP 34902A 16-Channel Multiplexer HP 34902A 16-Channel Multiplexer 167 HP 34903A 20-Channel Actuator HP 34903A 20-Channel Actuator 169 HP 34904A 4x8 Matrix Switch HP 34904A 4x8 Matrix Switch Name Comments HP 34905A/6A Dual 4-Channel RF Multiplexers HP 34905A/6A Dual 4-Channel RF Multiplexers 173 HP 34907A Multifunction Module HP 34907A Multifunction Module Digital Input / Output Slot Number 100 200Totalizer DAC Output HP 34908A 40-Channel Single-Ended Multiplexer HP 34908A 40-Channel Single-Ended Multiplexer 177 Remote Interface Reference Remote Interface Reference Scpi Command Summary Scpi Command Summary Eyy Monitor Commands Scpi Command Summary Scan Measurement CommandsZz vz 99B Zz vz 9C Scpi Command Summary Scan Configuration Commands Scan Memory Commands Scpi Command Summary Scan Statistics CommandsZz vz Zz vz 9A Zz vz 9E Scpi Command Summary Scanning With an External Instrument Zz vz 98E Scpi Command Summary Temperature Configuration Commands Scpi Command Summary Voltage Configuration Commands Scpi Command Summary Resistance Configuration Commands Zz vz Kvy vz 98 vy Ud E78N zz z5 Scpi Command Summary Current Configuration Commands 191 Scpi Command Summary Mx+B Scaling Commands Scpi Command Summary Alarm Limit Commands Zz vz 9AB Scpi Command Summary Digital Input CommandsTotalizer Commands DAC Output Commands Scpi Command Summary Digital Output CommandsSwitch Control Commands Zz vz 9AD State Storage Commands Scpi Command Summary Scan Triggering CommandsZz vz 99D Zz vz 9B8 Zz vz 9B Scpi Command Summary System-Related Commands Status System Commands Scpi Command Summary Interface Configuration CommandsZz vz 9BE Zz vz 9DB Zz vz 9E9 Scpi Command Summary Calibration CommandsService-Related Commands Scpi Command Summary Ieee 488.2 Common Commands Simplified Programming Overview Simplified Programming Overview MEASure? v z vz CONFigure zy yvz wINITiate xy z vy 5 iz z Xy z y zvy Range 41⁄2 Digits Xv zy zyv w z FETCh? xv3 zxz z Vy vz zy vy z Gz z READ? xvy z z 205 Xv3 ABORt x Qzxz Pzvzz vz V v zz vzy z MEASure? and CONFigure Commands MEASure? and CONFigure CommandsGeneral Measurement Configuration starting on MEASure? Command Syntax Yzz MEASureTEMPerature? RTDFRTD,8591DEFMEASureVOLTageDC? MEASureVOLTageAC? MINMAXDEF, @ MEASureCURRentDC? MEASureCURRentAC? MEASureRESistance? MEASureFRESistance?Pz vz vz vzy Xv 98 vy Ud E78N zz z5 MEASureFREQuency? MEASurePERiod? MEASureDIGitalBYTE? @ MEASureTOTalize? READRRESet ,@ CONFigureTEMPerature RTDFRTD,8591DEF MEASure? and CONFigure Commands CONFigure Command SyntaxCONFigureTEMPerature TCouple,BEJKNRSTDEF Minmaxdef ,@t CONFigureRESistance CONFigureFRESistance CONFigureVOLTageDC CONFigureVOLTageAC AutominmaxdefCONFigureCURRentDC CONFigureCURRentAC Pzzvzz vz vzy xv 98 vy Ud E78N zz z5 CONFigureDIGitalBYTE @ CONFigureFREQuency CONFigurePERiod AutominmaxdefCONFigureTOTalize READRRESet ,@ CONFigure? @x Setting the Function, Range, and Resolution Setting the Function, Range, and ResolutionSee also General Measurement Configuration in starting on SENSeFUNCtion VOLTageACRANGe? @x SENSe VOLTageDCRANGe? @xRESistanceRANGe? @x FRESistanceRANGe? @x RESistanceRESolution? @x SENSe VOLTageDCRESolution? @xFRESistanceRESolution? @x CURRentDCRESolution? @x RESistanceAPERture? @x SENSe VOLTageDCAPERture? @xFRESistanceAPERture? @x CURRentDCAPERture? @x VOLTageDC SENSe TEMPeratureRESistance FRESistance General Temperature Commands Temperature Configuration Commands Temperature Configuration Commands Thermocouple Commands SENSeTEMPeratureRJUNction? @x Thermistor Commands Temperature Configuration Commands RTD Commands See also Voltage Measurement Configuration in starting on Voltage Configuration CommandsINPut IMPedanceAUTO OFFON,@x IMPedanceAUTO? @x SENSe Zeroauto OFFONCEON,@x ZEROAUTO? @x Current Configuration Commands Resistance Configuration Commands See also Frequency Measurement Configuration in starting on Frequency Configuration CommandsFrequency Configuration Commands See also Scanning in starting on Scanning OverviewScanning Overview Scanning Overview TRIGger SOURce BUSIMMediateEXTernalALARm1234TIMer SOURce? Scanning Overview Scanning CommandsROUTe Scan @ SCAN? ROUTeSCANSIZE? ROUTe CHANnelDELay y TRIGger TIMer y Minmax TIMer?CHANnelDELay? @x TRIGger COUNt x MINMAXINFinity COUNt? INITiate ROUTe CHANnelDELayAUTO OFFON,@x CHANnelDELayAUTO? @xABORt FORMat READingCHANnel Offon READingCHANnel? Scanning Overview Reading Format CommandsFORMat READingALARm Offon READingALARm? FORMat READingUNIT Offon READingUNIT? FORMat READingTIME Offon READingTIME?FORMat READingTIMETYPE ABSoluteRELative READingTIMETYPE? Hz vxz CALCulateAVERageMINimum? @x Scanning Overview Scan Statistics CommandsCALCulateAVERageMINimumTIME? @x CALCulateAVERageMAXimum? @x CALCulateAVERagePTPeak? @x CALCulateAVERageAVERage? @xCALCulateAVERageCOUNt? @x CALCulateAVERageCLEar @x DATAREMove? t Scanning Overview Scan Memory CommandsDATAPOINts? SYSTemTIMESCAN? See Reading Format Commands onFETCh? ? tx Single-Channel Monitoring Overview Single-Channel Monitoring Overview ROUTeMONitorDATA? ROUTe MONitor @xvz MONitor?ROUTe MONitorSTATe Offon MONitorSTATe? Scanning With an External Instrument TRIGger SOURce BUSIMMediateEXTernalTIMer SOURce? TRIGger COUNt z MINMAXINFinity COUNt? Y z v Qaa ywy y Ud EC7N5 INSTrument ROUTe CHANnelFWIRe Offon ,@x CHANnelFWIRe? @xINSTrumentDMMINSTalled? See also Mx+B Scaling in starting on Mx+B Scaling OverviewMx+B Scaling Overview CALCulate SCALeGAIN v ,@xt SCALeGAIN? @x Mx+B Scaling Overview Mx+B Scaling CommandsCALCulate SCALeOFFSet ,@xt SCALeOFFSet? @x CALCulate SCALeUNIT zyt SCALeUNIT? @x CALCulate SCALeSTATe OFFON,@x SCALeSTATe? @x CALCulateSCALeOFFSetNULL @x See also Alarm Limits in starting on Alarm System OverviewAlarm System Overview Alarm System Overview Calclimitupper MAX,@101LOWER 9,@101LOWERSTATE on OUTPut ALARm1234SOURce @xt ALARm1234SOURce? Alarm System Overview Alarm Limit CommandsCALCulate LIMitUPPer z LIMitUPPer? @x CALCulate LIMitUPPerSTATe OFFON,@xt LIMitUPPerSTATe? @x CALCulate LIMitLOWerSTATe OFFON,@xt LIMitLOWerSTATe? @x SYSTemALARm?CALCulate LIMitLOWer z LIMitLOWer? @x OUTPut ALARmMODE LATChTRACk ALARmMODE? Alarm System Overview Alarm Output CommandsOUTPut ALARmSLOPe NEGativePOSitive ALARmSLOPe? Vz xvz z5 CALCulate COMPareDATA yvv ,@xt COMPareDATA? @x Alarm System Overview Digital I/O Alarm CommandsCALCulate COMPareTYPE EQUalNEQual,@x COMPareTYPE? @x CALCulate COMPareSTATe OFFON,@x COMPareSTATe? @x CALCulate COMPareMASK COMPareMASK? @x SENSeDIGitalDATABYTEWORD? @x Digital Input CommandsSee also Digital Input Operations in starting on See also Totalizer Operations in starting on Totalizer CommandsSENSe TOTalizeTYPE READRRESet,@x TOTalizeTYPE? @x SENSe TOTalizeSLOPe NEGativePOSitive,@x TOTalizeSLOPe? @x Commands see Reading Format Commands onSENSeTOTalizeCLEarIMMediate @x SENSeTOTalizeDATA? @x DAC Output Commands Digital Output CommandsSOURce DIGitalDATABYTEWORD yvv ,@xt DIGitalDATABYTEWORD? @x SOURceDIGitalSTATe? @x ROUTe Open @x OPEN? @x Switch Control CommandsROUTe CLOSe @x CLOSeEXCLusive @x CLOSe? @x ROUTeDONE? ROUTe CHANnelFWIRe Offon , @ CHANnelFWIRe? @SYSTemCPON 100200300ALL Zv z RCL State Storage CommandsSAV MEMorySTATeDELete MEMorySTATe Name 12345 ,z NAME? MEMoryNSTates? RECallAUTO?MEMorySTATeVALid? SYSTemDATE 3 3yy System-Related CommandsSYSTemDATE? SYSTemTIME 3 SYSTemCTYPe? DIAGnostic Pokeslotdata 100200300, zyt PEEKSLOTDATA?Oz v 7 DISPlayTEXTCLEar DISPlay Offon DISPlay?DISPlay Text zyt INSTrument DMM Offon SYSTemPRESetFxz5 Gfxz5 SYSTemVERSion? SYSTemERRor?Gzz xv v xz z Ud EC7N z vz5 Interface Configuration Commands Gh6 Sy d RS-232 Interface ConfigurationRS-232 Interface Configuration Gh6 Yzv Or xz xvwz Gh6 Tyyy Ud EC7N Modem Communications Modem CommunicationsZz yz For more information, see Flow Control Selection on Ny y S gO Scpi Status SystemNy yO Ny yy gO HP 34970A Status System Decimal Bit Number Bit Definitions Status Byte RegisterDefinition 128 Vvzz v xz Xzy wz zzx v gzv d5 Ghgf2 yGzv d zzxzy vz hzz3 yxv w gzv d xzv Yxvz vzx Xz5 iz z S S Ly QQm2 512 Bit Definitions Questionable Data Register1024 2048 Scpi Status System Bit Definitions Standard Event Register Scpi Status System Bit Definitions Alarm Register Bit Definitions Standard Operation Register Dy g Status Byte Register Commands Status System CommandsVv xzy xvz C z z Gv g fz5 fzzvz Gzz z wz vz 9CC z zz wz STATusQUEStionableENABle zv STATusQUEStionableENABle? Status System Commands Questionable Data Register CommandsGzz z wz vz 9D7 z zz wz STATusQUEStionableCONDition? ESE zv Status System Commands Standard Event Register CommandsGzz z wz vz 9D9 z zz wz STATusALARmCONDition? Status System Commands Alarm Register CommandsSTATusALARmEVENt? STATusALARmENABle zv STATusALARmENABle? STATusOPERationENABle zv STATusOPERationENABle? Status System Commands Standard Operation Register CommandsGzz z wz vz 9DA z zz wz STATusOPERationCONDition? STATusPRESet Miscellaneous Status Register CommandsDATAPOINtsEVENtTHReshold t DATAPOINtsEVENtTHReshold? PSC CALibration? Calibration CommandsCALibrationCOUNt? CALibrationSECureCODE txyz CALibrationSTRing zyt CALibrationSECureSTATe OFFON,xyz CALibrationSECureSTATe?CALibrationSTRing? CALibrationVALue z CALibrationVALue? DIAGnosticDMMCYCLes? Service-Related CommandsDIAGnosticDMMCYCLesCLEar DIAGnosticRELayCYCLes? @x WAI Preset state. h xy zz zzxPRESET z fxz5 Scpi gvyvy Py vw V is an An Introduction to the Scpi LanguageAn Introduction to the Scpi Language Syy i byy Routchandelay 1TRIGSOUR EXT Wvvxz Fy hHSeY Sy HSeY ey Channel list parameters specify one or Hz ABORt x xyzy v vz v Using Device ClearUsing Device Clear Page ∙ x o u Error 102 Execution Errors 101103 105 121 Execution Errors 114j123 124 178 Execution Errors 168211 213 310 350 Execution Errors 230410 420 201 Instrument Errors 111202 203 225 Instrument Errors 221226 251 271 Instrument Errors 261272 281 305 Instrument Errors 303306 307 502 Instrument Errors 501511 512 601 602 Self-Test Errors603 604 701 Calibration Errors702 703 704 721 Calibration Errors 710 720722 723 Error Messages Page BA8 Insert G68Example Programs for Excel VISAaddr = Excel 7.0 Example takeReadings Macro BAB BAC Dim columnIndex As Integer Excel 7.0 Example ScanChannels Macro BAF BAG Ck qdnT User’s Guide6 Example Programs for C and C++Ck qdnT User’s Guide6 o ++ Example dacout.c ++ Example statreg.c BB9 Page AFF ABAAG8 AG= Lz k System Cabling and ConnectionsGz bz 0z Uzz Cable Type Nominal Impedance Capacitance Attenuation 99= LvLv 3uqyu Copper-to Uj m GxuuB Gxuyw qs u Z Uff4 Refer to Measurement Input on WuqMeasurement Fundamentals Integration Time PLCs Wsu Qysq Dxu qsuvqsu ytu qsusyvysq Vq tu4 Bz mz 9GG8 Measurement Fundamentals Internal DMM Internal DMM Ice Bath Ez b Measurement Fundamentals Iron Constantan Temperature Probe Type Pos + Lead Neg LeadNickel-Chromium Nickel-Aluminum Copper Constantan Z4 z ABC MWW2 99A Nm w Stuqq Connection a Connection B Sl py Sk p j HI A1 AC to DC Converter X10 X100 360 361 Km w Example Calculating Measurement Error N5zzz z5 z z 0 z AAD16 Hj s Voltage Measured = ‾‾‾‾‾‾‾‾‾‾‾‾√ V 2 + Noise MWW On-Card Km m Nm m To Amplifier Analog-to-Digital Converter HI-Source HI-Sense AB8 For more information on channel delay, seeOffset Compensation on page 115 for more information Does not sxqu Insulating Material Resistance Range Moisture Absorbing Zz4 z FF Ai Sz e HI Source HI Sense LO Sense LO Source Strain DMM Sensitivity 376 Measurement Fundamentals V3Vu cyw Wuy q cyxy Low-Level Signal Multiplexing and Switching 4 AC8 ELo HI + Source Sense OUT COM H GND COM L Zz AE Module Bank Module Reference Actuators and General-Purpose Switching Rp = Dxu q u Ytu u qt Dxuuvu2 xu yy b Sq ru t qB Module Reference Wqy cyxy Matrix Switching Matrix Module BO cyw RF Signal Multiplexing 9A7 Multifunction Module 393 = 24 k Ω GND TTL AC For more information on cabling noise, see R B8 R URT z16 ∙ d qy s2 u .b Yu tyqwq Qr/ w EnkmF yU55R Nkm o Buq Z Relay Life and Preventative Maintenance Qsuqsu wuqq Uu utysuqqy4 AHf AHeAOO AOT DC Voltage DC, Resistance, and Temperature Accuracy Specifications Ki u y DC Measurement and Operating Characteristics Gi g AC Accuracy Specifications Gi u AC Measurement and Operating Characteristics Single Channel Measurement Rates 1 System Characteristics Measurement Rates and System Characteristics TagHOr7 TagHPr7 TagHfr7 TagHTr7 TagHar Module Specifications TagHcr7 TagHdr Typical AC Performance Graphs TagHer Product and Module Dimensions Understanding the % of reading Error o To Calculate Total Measurement Error × 1,000,000 Understanding the % of range Error o Interpreting Internal DMM Specifications Criteria 417 LYR u BdR u Vhh 87 b 87 q ∙ p =4 ∙ n ∙ n c 77 =8F Configuring for Highest Accuracy Measurements Index Index CAB CAC CAD CAE CAF CAG CAH CB8 CB9 CBA CBB Declaration of Conformity Ajjh