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Measurement Commands

Chapter2

Measurement Commands

MEASure

？

FETCh

？

This command is used to read the measurement value of electronic load.

The sequence of measurement data is listed in the following table:

Measurement Value

Description

CURR_DC

Direct current value

CURR_RMS

Current effective value

CURR_MAX

Current maximum value

CURR_MAXP

The positive peak current

CURR_MINP

The negative peak current

VOLT_DC

Direct voltage value

VOLT_RMS

Voltage effective value

VOLT_MAX

Maximum voltage

POW_ACT

Active power

POW_APP

Apparent power

POW_REAC

Reactive power

POW_MAX

Maximum power

RES

Resistance

FREQ

Frequency

CURR_CFAC

Crest Factor

POW_PFAC

Peak Factor

VOLT_THD

Total harmonic distortion of voltage

ETIME

Elapsed time under timing mode

TEMP

Temperature

Returned value:

<NR3>

MEASure:CURRent?

FETCh:CURRent?

This command is used to read the current average value in load input terminal.

Command syntax:

MEASure[:SCALar]:CURRent[:DC]?

FETCh[:SCALar]:CURRent[:DC]?

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Содержание IT8600 Series

Страница 1: ...Programmable AC DC Electronic Load Programming Guide for IT8600 Series Model IT8615 IT8615L IT8616 IT8617 IT8624 IT8625 IT8626 IT8627 IT8628 Version V2 2 www tehencom com...

Страница 2: ...this document that conflict with these terms the warranty terms in the separate agreement shall prevail Technology Licenses The hardware and or software described herein are furnished under a license...

Страница 3: ...n the account of customer Limitation of Warranty This Warranty will be rendered invalid if the product is Damaged resulting from customer wired circuits or customer supplied parts or accessories Modif...

Страница 4: ...of electronic load without overheating If there are multiple loads each pair of the load power cord must be carry out the full rated short circuit output current of the power securely Ensure the volt...

Страница 5: ...irements Operating temperature 5 C 40 C Operating humidity humidity 20 80 non condensation Storage temperature 20 C 50 C Altitude 2 000m Installation category II Pollution degree Pollution degree 2 NO...

Страница 6: ...he expected useful service of the product is 10 years The product can be used safely during the 10 year Environment Friendly Use Period EFUP Upon expiration of the EFUP the product must be immediately...

Страница 7: ...EN 61000 4 2 2009 IEC 61000 4 3 2006 A1 2007 A2 2010 EN 61000 4 3 2006 A1 2008 A2 2010 IEC 61000 4 4 2004 A1 2010 EN 61000 4 4 2004 A1 2010 IEC 61000 4 5 2005 EN 61000 4 5 2006 IEC 61000 4 6 2008 EN...

Страница 8: ...ote Operation 7 Chapter2 Measurement Commands 9 MEASure 9 FETCh 9 MEASure CURRent 9 FETCh CURRent 9 MEASure CURRent RMS 10 FETCh CURRent RMS 10 MEASure CURRent MAXimum 10 FETCh CURRent MAXimum 10 MEAS...

Страница 9: ...re PHASe HARMonic 17 MEASure VOLTage HARMonic DISTort 17 FETCh VOLTage HARMonic 17 FETCh PHASe HARMonic 18 FETCh VOLTage HARMonic DISTort 18 FETCh HARMonic 18 Chapter3 Load Commands 20 INPut 20 INPut...

Страница 10: ...ection 38 WAVE VOLTage BASE 38 WAVE VOLTage RANGe 38 WAVE CURRent BASE 39 WAVE CURRent RANGe 39 PORT OUTPut 40 AVERage COUNt 40 Chapter4 System Commands 41 SYSTem MODE 41 SYSTem CFPF MODE 41 SYSTem CF...

Страница 11: ...tal 53 CALibrate SAVe 54 CALibrate VOLTage POINt 54 CALibrate VOLTage 54 CALibrate CURRent POINt 55 CALibrate CURRent 55 CALibrate VOLTage METer POINt 55 CALibrate VOLTage METer 56 CALibrate CURRent M...

Страница 12: ...rmed A part of OUTPut subsystem is listed below OUTPut SYNC OFF 0 ON 1 SYNC MODE NORMal CARRier POLarity NORMal INVerted OUTPut is the root class keyword SYNC is the second keyword MODE and POLarity a...

Страница 13: ...message with two combined commands CURR LEV 3 PROT STAT OFF The example indicates the effect of semicolon and explains the concept of head path Since the head path is defined to be CURR after curr lev...

Страница 14: ...t ONIT872X 3X SCPI Communication protocol 17 Case sensitivity Common commands and SCPI commands are not case sensitive You can use upper or lower for example RST rst DATA data SYSTem PRESet system pre...

Страница 15: ...d strings Vertical stripes separate several parameter options with given command strings For example VPP VRMS DBM indicates that you may assign APP VRMS or DBM in the above commands Vertical stripes a...

Страница 16: ...0 Question mark You can insert question marks into a command to query current values of most Parameter For example the following commands will trigger to set the count as 10 TRIG COUN 10 Then you may...

Страница 17: ...is sent to the instrument otherwise errors will be caused 1 5 Data Type SCPI language defines several data types used for program message and response messages Numerical parameter Commands requiring...

Страница 18: ...is used in the following command DISPlay TEXT quoted string For example the following commands display message of WAITING without quotation marks on the front panel of the instrument DISP TEXT WAITIN...

Страница 19: ...CONFIG to find Communication interface Select GPIB and then set the GPIB address press Enter to confirm The electronic load operates from a GPIB address set from the front panel The GPIB address is s...

Страница 20: ...CURR_MINP The negative peak current VOLT_DC Direct voltage value VOLT_RMS Voltage effective value VOLT_MAX Maximum voltage POW_ACT Active power POW_APP Apparent power POW_REAC Reactive power POW_MAX M...

Страница 21: ...R3 MEASure CURRent MAXimum FETCh CURRent MAXimum This command is used to read the maximum current value in load input terminal Command syntax MEASure SCALar CURRent AMPLitude MAXimum FETCh SCALar CURR...

Страница 22: ...ent MINPeak Returned value NR3 MEASure CURRent MAXPeak FETCh CURRent MAXPeak This command is used to read the positive peak current of electronic load Command syntax MEASure SCALar CURRent MAXPeak FET...

Страница 23: ...NR3 MEASure POWer MAXimum FETCh POWer MAXimum This command is used to read the maximum input power value Command syntax MEASure SCALar POWer AMPLitude MAXimum FETCh SCALar POWer AMPLitude MAXimum Retu...

Страница 24: ...tor Returned value NR3 MEASure POWer REACtive FETCh POWer REACtive This command is used to read the reactive power of VAR as the unit Command syntax MEASure SCALar POWer REACtive FETCh SCALar POWer RE...

Страница 25: ...R3 MEASure VOLTage RMS FETCh VOLTage RMS This command is used to read the voltage effective value Command syntax MEASure SCALar VOLTage RMS FETCh SCALar VOLTage RMS Returned value NR3 MEASure VOLTage...

Страница 26: ...ASure ETIMe FETCh ETIMe This command is used to read the measurement value of time and the unit is s Command syntax MEASure SCALar ETIMe FETCh SCALar ETIMe Returned value NR3 MEASure TEMPerature FETCh...

Страница 27: ...ARMonic This command is used to read all the harmonic data The order of returned data is the absolute value of total harmonic the total harmonic component the fundamental frequency and each range is a...

Страница 28: ...measurement Command syntax MEASure PHASe HARMonic ALL or NR1 Parameter ALL or NR1 Returned value NR3 MEASure VOLTage HARMonic DISTort This command is used to read the percentage of each harmonic Comm...

Страница 29: ...his command is used to read the percentage of each harmonic Command syntax FETCh VOLTage HARMonic DISTort TOTal ALL or NR1 Parameter TOTal ALL or NR1 Returned value NR3 FETCh HARMonic This command is...

Страница 30: ...Measurement Commands Copyright Itech Electronic Co Ltd 19 Command syntax FETCh HARMonic Returned value NR3 NR3 NR3 www tehencom com...

Страница 31: ...Query Syntax SOURce INPut STATe Returned value 0 1 INPut REAL This command indicates whether the electronic load is really applied to the loop Command syntax SOURce INPut REAL STATe Returned value 0 1...

Страница 32: ...er the short simulation is enabled Command syntax SOURce INPut SHORt bool Parameter 0 1 OFF ON Reset value 0 Query Syntax SOURce INPut SHORt Returned value 0 1 INPut SHORt FUNCtion This command is use...

Страница 33: ...ne PROTection AUTO CLEar This command is used to set the state when electronic load clear the protection automatically Command syntax SOURce PROTection AUTO CLEar STATe bool Parameter 0 1 OFF ON Reset...

Страница 34: ...his command is used to set the maximum current value in CV mode Note This command applies only to IT8615 and IT8615L electronic loads Command syntax SOURce CURRent LIMit LEVel CV Parameter MINimum MAX...

Страница 35: ...urned value NR3 CURRent PEAK PROTection This command is used to set the load peak level of software overcurrent protection Command syntax SOURce CURRent PEAK PROTection LEVel NRF Parameter MINimum MAX...

Страница 36: ...MINimum MAXimum Returned value NR3 CURRent PROTection STATe This command is used to enable or disable the overcurrent protection of electronic load Command syntax SOURce CURRent PROTection STATe bool...

Страница 37: ...POWer MAXimum LEVel This command is used to set the maximum power value Command syntax SOURce POWer MAXimum LEVel Parameter MINimum MAXimum DEFault or NRf Unit W Reset value MAXimum Query Syntax SOURc...

Страница 38: ...ay This command is used to set power protection delay of electronic load Command syntax SOURce POWer PROTection DELay NRf Parameter MINimum MAXimum DEF or NR3 Unit s Reset value MAXimum Query Syntax S...

Страница 39: ...nce of electronic load Command syntax SOURce RESistance LEVel IMMediate AMPLitude NRf Parameter MINimum MAXimum DEFault or NRf Unit Ohm Reset value MAXimum Query Syntax SOURce RESistance LEVel IMMedia...

Страница 40: ...command is used to set the CF value of electronic load Command syntax SOURce CFACtor LEVel IMMediate AMPLitude NRf Parameter MINimum MAXimum DEFault or NRf Unit None Reset value MINimum Query Syntax...

Страница 41: ...imum Returned value NR3 INPut TIMer This command is used to set the timer mode Command syntax SOURce INPut TIMer STATe bool Parameter 0 1 OFF ON Reset value 0 Query Syntax SOURce INPut TIMer STATe Ret...

Страница 42: ...used to set the measurement type of electronic load Command syntax SOURce INPut MEASure TYPE Parameter METer HARMonic SCOPe Reset value METer Query Syntax SOURce INPut MEASure TYPE Returned value METe...

Страница 43: ...e load rate in CC mode under AC DC working mode Command syntax SOURce RATE CC SLOW HIGH Parameter SLOW HIGH Query Syntax SOURce RATE CC Returned value SLOW HIGH WAVE TRIGger VOLTage LEVel This command...

Страница 44: ...ry Syntax WAVE TRIGger CURRent LEVel Returned value NR3 WAVE TRIGger SOURce This command can set or read the device taking which kind waveform as trigger source Command syntax WAVE TRIGger SOURce VOLT...

Страница 45: ...the trigger mode when take waveform as trigger source Command syntax WAVE TRIGger MODE AUTO NORMal Parameter AUTO NORMal Query Syntax WAVE TRIGger MODE Returned value AUTO NORMal WAVE TRIGger DELay TI...

Страница 46: ...nd is used to set or read the time grid value of the waveform display Command syntax WAVE TRIGger DIVTime Parameter 0 0005 0 001 0 002 0 005 0 01 0 02 0 05 0 1 0 2 Unit s Query Syntax WAVE TRIGger DIV...

Страница 47: ...yntax None WAVE SINGle This command is used to trigger a single waveform capture Command syntax WAVE SINGLe Parameter None Query Syntax None WAVE VOLTage DATA This command is used to obtain the voltag...

Страница 48: ...yntax WAVE CURRent DATA NORMalization Returned value NR1 NR1 NRf NRf WAVE TRIGger This command is used to query the trigger status Command syntax WAVE TRIGger STATe Returned value Auto Auto Trig Trig...

Страница 49: ...AB TL TD T d Query syntax WAVE KNOB SELection Returned value UR AR UB AB TL TD T d WAVE VOLTage BASE This command is used to set the voltage reference Command syntax WAVE VOLTage BASE Parameter NRf Un...

Страница 50: ...URRent BASE This command is used to set the current reference Command syntax WAVE CURRent BASE NRf Parameter NRf Unit A Reset value 0 0 Query Syntax WAVE CURRent BASE Returned value NR3 WAVE CURRent R...

Страница 51: ...he output state of external programmable terminal Command syntax PORT OUTPut STATe bool Parameter 0 1 OFF ON Query Syntax PORT OUTPut STATe Returned value 0 1 AVERage COUNt This command is used to set...

Страница 52: ...Parameter AC DC Reset value AC Query Syntax SYSTem SETup MODE Returned value AC DC SYSTem CFPF MODE This command is used to set the CF PF BOTH mode Command syntax SYSTem SETup CFPF MODE CF PF BOTH Par...

Страница 53: ...s used to set the harmonic formula Command syntax SYSTem SETup HARMonic THDistort FORMula THDF THDR Parameter THDF THDR Query Syntax SYSTem SETup HARMonic THDistort FORMula Returned value THDF THDR SY...

Страница 54: ...load IP Command syntax SYSTem COMMunicate LAN CURRent ADDRess STR Parameter STR Unit None Reset value 192 168 0 211 Query Syntax SYSTem COMMunicate LAN CURRent ADDRess Returned value STR SYSTem COMMu...

Страница 55: ...yntax SYSTem COMMunicate LAN CURRent SMASk Parameter STR Unit None Reset value 255 255 255 0 Query Syntax SYSTem COMMunicate LAN CURRent SMASk Returned value STR SYSTem COMMunicate LAN DHCP This comma...

Страница 56: ...te LAN SOCKetport Parameter NR1 Unit None Reset value 30000 Query Syntax SYSTem COMMunicate LAN SOCKetport Returned value NR1 SYSTem COMMunicate LAN MACaddress This command is used to return the commu...

Страница 57: ...nd is used to turn on or turn off the beeper When the parameter is set to 1 ON the beeper turns on or the beeper turns off Command syntax SYSTem BEEPer STATe bool Parameter 0 OFF 1 ON Query Syntax SYS...

Страница 58: ...the AC load to remote control mode In this mode except Local button pressing Local button to back to local mode other keys are locked Command syntax SYSTem REMote Parameter None Query Syntax None SYST...

Страница 59: ...of AC load to remote control mode But unlike SYST REM command all the keys on the front panel including Local key will be locked Command syntax SYSTem RWLock Parameter None Returned value None SYSTem...

Страница 60: ...ATus QUEStionable EVENt Parameter None Returned value NR1 Relevant Command STATus QUEStionable ENABle STATus QUEStionable CONDition This command is used to read the value of query condition register t...

Страница 61: ...NR1 Related command PSC Bit 0 Frequency questionable Bit 1 2 Voltage under range Bit 3 Voltage Over Questionable Bit 4 Current Peak Over Bit 5 Current Rms Over Bit 6 Power Over Bit 7 temperature Bit 8...

Страница 62: ...which holds the live unlatched operational status of the electronic load Query Syntax STATus OPERation CONDition Parameter None Returned value NR1 STATus OPERation ENABle This command set the value of...

Страница 63: ...Status Commands Copyright Itech Electronic Co Ltd 52 Returned value NR1 www tehencom com...

Страница 64: ...rect an error is generated and the calibration mode remains disabled The query statement returns only the state not the password Whenever the calibration state is changed from enabled to disabled any...

Страница 65: ...ge meter range P3 P4 is used in high voltage meter range It can use calibrate voltage source and voltage meter Command syntax CALibrate VOLTage POINt point Parameter P1 P2 P3 P4 Example CAL VOLT POIN...

Страница 66: ...rated in order Command syntax CALibrate CURRent POINt point Parameter P1 P2 P3 P4 Example CAL CURR POIN P2 Relevant command CAL STAT CAL SAV CALibrate CURRent This command is used to enter a calibrati...

Страница 67: ...URRent METer POINt This command is used to calibrate the measurement current point Command syntax CALibrate CURRent METer POINt point Parameter P1 P2 P3 P4 CALIbrate CURRent METer This command is used...

Страница 68: ...ding Current external reading Unit V A CALibrate RESistance BIAS POINt This command is used to calibrate the bias point of resistance Command syntax CALibrate RESistance BIAS POINt point Parameter P1...

Страница 69: ...rate the current limit point in CV mode Command syntax CALibrate CURRent LIMit POINt point Parameter P1 P2 Unit None CALibrate CURRent LIMit This command is used to calibrate the current limit value i...

Страница 70: ...mand syntax CLS Parameter None ESE This command is used to edit the value of standard event enable register It defines the specified bits from standard event register that will cause the value of ESB...

Страница 71: ...me Query Syntax ESR Parameter None Returned value NR1 Relevant Command CLS ESE ESE OPC IDN This command is used to query related information of AC load Query Syntax IDN Parameter None Returned value A...

Страница 72: ...x RST Parameter None SRE This command sets the condition of the Status Request Enable Register After executing this command AC load will return back a decimal value which is a binary weighted sum of a...

Страница 73: ...of Parameter in the table are as follows RQS request for service ESB Event summary bit MAV Message available QUES One or more questionable event register is reset Query Syntax STB Parameter None Retu...

Страница 74: ...and to the specified location Command syntax RCL NRf Parameter 0 9 TST This query causes the electronic load to do a self test and report any errors 0 indicates the load passes its self test Non zero...

Страница 75: ...is upper than 18A OPP 6 64 The power value in AC DC mode is upper than 1800W or 4500W OTP 7 128 The temperature value is upper than the limit value LDF 8 256 Load Failure Description of Operation Stat...

Страница 76: ...Ltd 65 Description of Status Byte Bit Mnemonic Bit Value Bit Weight Meaning CSUM 2 4 QUES 3 8 A questionable enable event has occurred MAV 4 16 Message Available ESB 5 32 Event Status Bit RQS MSS 6 6...

Страница 77: ...If you have any doubt about this product please contact us as follow 1 Please refer to the CD ROM of related user s manual in package 2 Visit ITECH website www itechate com 3 Select the most convenien...

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