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Frequency Control Commands

Copyright © Itech Electronic Co., Ltd.

24

Chapter4 Frequency Control Commands

[SOURce:]FREQuency[:IMMediate]

This command is used to set the current output frequency of the power supply.

Command syntax

[SOURce:]FREQuency[:IMMediate]

Parameters

MINimum|MAXimum|DEFault|Float

Example

freq 90

Query syntax

[SOURce:]FREQuency][:IMMediate]?

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Summary of Contents for IT7300 Series

Page 1: ...Programmable AC Power Supply IT7300 Series Programming Guide Model IT7321 IT7322 IT7322H IT7324 IT7324H IT7326 IT7326H IT7322T IT7322HT IT7324T IT7324HT IT7326T IT7326HT Version V1 0 ...

Page 2: ... and can only be used or copied according to the license Restricted permission statement Restricted permissions of the U S government Permissions for software and technical data which are authorized to the U S Government only include those for custom provision to end users ITECH follows FAR 12 211 technical data 12 212 computer software DFARS 252 227 7015 technical data commercial products for nat...

Page 3: ... be responsible for return freight If the product is sent to ITECH for warranty service from other countries the customer will be responsible for all the freight duties and other taxes Limitation of Warranty Warranty service does not apply to the damage caused in the following circumstances Damage resulting from customer wired circuits or customer supplied parts or accessories Product which has be...

Page 4: ...cautions Do not use the instrument if it is damaged Before operation check the casing to see whether it cracks Do not operate the instrument in the presence of inflammable gasses vapors or dusts The power supply is provided with a power line during delivery and should be connected to junction box Before operation be sure that the power supply is well grounded Make sure to use the power cord suppli...

Page 5: ...system or any other equipment subject to safety requirements Failure to use the instrument as directed by the manufacturer may render its protective features void Always clean the casing with a dry cloth Do not clean the internals Make sure the vent hole is always unblocked Environmental Conditions The IT7300 series power supply can only be used indoors or in low condensation areas The following t...

Page 6: ...within the specified period The service life of the product is 10 years The product can be used safely within the environmental protection period otherwise the product should be put into the recycling system Waste Electrical and Electronic Equipment WEEE Directive Waste electrical and electronic equipment WEEE directive 2002 96 EC The product complies with tag requirements of the WEEE directive 20...

Page 7: ...0 4 2 2008 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 61000 4 6 2009 IEC 61000 4 11 2004 EN 61000 4 11 2004 1 The product is intended for use in non residential non domestic environments Use of the product in residential domestic environments m...

Page 8: ...erface 7 1 6 1 RS232 Interface 7 1 6 2 USB Interface 9 1 6 3 LAN Interface 9 1 6 4 GPIB Interface 9 Chapter2 System Commands 11 SYSTem POSetup 11 SYSTem VERSion 11 SYSTem ERRor 11 SYSTem CLEar 12 SYSTem REMote 12 SYSTem LOCal 12 SYSTem RWLock 13 SYSTem BEEPer 13 SYSTem COMMunicate GPIB RDEVice ADDRess 13 SYSTem INTerface 14 SYStem PRESet 14 STATus QUEStionable EVENt 14 STATus QUEStionable CONDitio...

Page 9: ...Rent RANGe 23 SOURce PROTection CLEar 23 Chapter4 Frequency Control Commands 24 SOURce FREQuency IMMediate 24 Chapter5 Phase Control Commands 25 SOURce PHASe STARt 25 SOURce PHASe END 25 SOURce DIMMer PHASe 25 Chapter6 Voltage Control Commands 27 SOURce VOLTage LEVel IMMediate AMPLitude 27 SOURce RANGe 27 Chapter7 Output Control Commands 28 OUTPut STATe 28 Chapter8 TRACe Subsystem Commands 29 TRAC...

Page 10: ...n Commands 38 LIST STATe 38 LIST RECall 38 LIST STEP COUNt 38 LIST REPeat 39 LIST STEP VOLTage 39 LIST STEP FREQuency 40 LIST STEP SLOPe 40 LIST STEP DWELl UNIT 41 LIST STEP DWELl 41 LIST STEP SD STATe 42 LIST STEP SD CONTinue 42 LIST STEP SD VOLTage 43 LIST STEP SD SITe 43 LIST STEP SD TIMe 44 LIST SAVe BANK 44 LIST RUN STEP COUNt 45 LIST RUN STEP REPeat 45 Chapter11 Maximum Power Point Scanning ...

Page 11: ... 52 CALibrate SAVe 52 CALibrate VOLTage LEVel 52 CALibrate VOLTage DATa numeric value 53 CALibrate CURRent LEVel 53 CALibrate CURRent DATa numeric value 53 CALibrate POWer LEVel 53 CALibrate POWer DATa numeric value 54 CALibrate STRing 54 CALibrate STRing 54 Chapter15 IEEE488 2 Common Commands 55 CLS 55 ESE 55 ESR 56 IDN 56 OPC 56 RST 57 SRE Enable value 57 STB 57 TRG 58 SAV 58 RCL 59 WAI 59 TST 5...

Page 12: ...Put 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 are the third keyword Colon is used for separating the command keyword and the next level keyword 1 3 Command Type of SCPI SCPI has two types of commands common and subsystem Common commands generally are not related to...

Page 13: ...cates the effect of semicolon and explains the concept of head path Since the head path is defined to be CURR after curr lev 3 the head of the second command curr is deleted and the instrument explains the second command as CURR PROT STAT OFF If curr is explicitly included in the second command it is semantically wrong Since combining it with the head path will become CURR CURR PROT STAT OFF resul...

Page 14: ...or example RST rst DATA data SYSTem PRESet system preset Long form and short form versions A SCPI command word can be sent in its long form or short form version The command subsystem tables in Section 5 provide the in the long form version However the short form version is indicated by upper case characters Examples SYSTem PRESet long form SYST PRES short form SYSTem PRES long form and short form...

Page 15: ...ssign APP VRMS or DBM in the above commands Vertical stripes are not sent along with command strings Angle brackets in the second example indicates that a value must be assigned to the parameter in the brace For example the parameter in the angle bracket is frequency in the above syntax statements Angle brackets are not sent along with command strings You must assign a value such as FREQ CENT 1000...

Page 16: ...ple the following commands will trigger to set the count as 10 TRIG COUN 10 Then you may query count value by sending the following command TRIG COUN You may also query the allowable minimum or maximum count as follows TRIG COUN MIN TRIG COUN MAX Comma If a command requires several Parameter then a comma must be used to separate adjacent Parameter Space You must use blank characters TAB or Space t...

Page 17: ...ponse messages Numerical parameter Commands requiring numerical Parameter support the notations of all common decimal notations including optional signs decimal points scientific notation etc Special values of numerical Parameter are also acceptable such as MIN MAX and DEF In addition suffixes for engineering units can also be sent together with numerical Parameter including M k m or u If the comm...

Page 18: ...T WAITING Single quotation marks may also be used to display the same message DISP TEXT WAITING 1 6 Communication Interface IT7300 have four standard communication interfaces LAN USB RS232 GPIB IT7321 standard with LAN USB RS232 communication interface The customer can choose any one according to his demands 1 6 1 RS232 Interface There is a DB9 connector at the rear of the power supply when connec...

Page 19: ...required not the modulating cable of the air conditioner RS 232 plug pins Pin number Description 1 No connection 2 TXD transfer data 3 RXD receive data 4 No connection 5 GND ground 6 No connection 7 CTS clear transfer 8 RTS ready to transfer 9 No connection RS 232 Troubleshooting In case of connection failure of RS232 perform following check Check if the computer and power supply are provided with...

Page 20: ...ace is 488 2 USB488 interface Receive the following request REN_CONTROL GO_TO_LOCAL and LOCAL_LOCKOUT When the interface receives MsgID TRIGGER USBTMC command it will transmit the TRIGGER command to the function layer The functions of power supply s USB488 are as follows receive all SCPI commands device is SR1 enabled device is RL1 enabled device is DT1 enabled 1 6 3 LAN Interface Press Shift Menu...

Page 21: ...connection Then press Menu to enter the system menu and the select the Communication to set the GPIB address The address range of power supply is 0 to 30 After you set the address please press button to confirm GPIB address is saved in nonvolatile memory ...

Page 22: ...ike YYYY V in which the YYYY is the year of that version V is the software version of that year Command syntax SYST VERS Parameters None Returns NR2 Example 1991 1 SYSTem ERRor This order is used to query the error information of the power supply When the error LED lights on the front panel it tells us that there is one or more hardware or order syntax error happened There are at most 20 groups of...

Page 23: ...f turn off the power supply or send CLS clear status order the error messages in the error queue will be cleared RST order will not clear the error messages in the error queue SYSTem CLEar This command is used to clear the error information Command syntax SYSTem CLEar Parameters None Returns None SYSTem REMote This command is used to set the power to remote control mode Only the Shift Local Select...

Page 24: ...the Local button can t switch to local control mode Command syntax SYST RWL SYSTem BEEPer This command is used to turn on turn off the beeper when the arguments is set to 1 ON the beeper is enabled and press keyboard will beeper otherwise it is mute Command syntax SYSTem BEEPer Parameters OFF ON 0 1 Example SYST BEEP 1 SYSTem COMMunicate GPIB RDEVice ADDRess This command is used to set the address...

Page 25: ...e EVENt This command can be used to read the value in query event register The power supply will return a decimal number corresponding to the binary weighted sum of each unit digit of register These digits will be latched After executing this command the query event register will be cleared Query syntax STATus QUEStionable EVENt Parameters None Returns NR1 Related commands STATus QUEStionable ENAB...

Page 26: ...535 Power on value Refer to PSC command Example STATus QUEStionable ENABle 16 Query syntax STATus QUEStionable ENABle Returns NR1 Related commands PSC STATus QUEStionable NTRansition This command set the value of the Questionable NTR Negative Transition register The register serve as polarity filters between the Questionable Condition and Questionable Event registers to cause the following actions...

Page 27: ...ble Event registers to cause the following actions When a bit of Questionable PTR register is set to 1 then a 1 to 0 transition of the corresponding bit of the Questionable Condition register causes that bit in the Questionable Event register to be set Command syntax STATus QUEStionable PTRansition NR1 Parameters 0 65535 Example STATus QUEStionable PTRansition 128 Query syntax STATus QUEStionable ...

Page 28: ...peration condition register changes the bit corresponding in operation event register is 1 Query syntax STATus OPERation CONDition Parameters None Returns NR1 STATus OPERation ENABle This command can set the parameter of operation event enable register Setting parameter can determine which bit value of operation event register is 1 and the bit will cause OPER of status byte register to be 1 Comman...

Page 29: ...ansition NR1 Parameters 0 255 Example STATus OPERation NTRansition 128 Query syntax STATus OPERation NTRansition STATus OPERation PTRansition This command set the value of the Operation PTR Positive Transition register Setting parameter can determine which bit value of operation event register is 1 and the bit will cause OPER of status byte register to be 1 Command syntax STATus OPERation PTRansit...

Page 30: ...OLT MIN 2 Query syntax CONFig SOURce VOLTage LEVel MINimum CONFig SOURce VOLTage LEVel MAXimum This command is used to configure the voltage upper limit same as Volt Max setting in the instrument panel menu Command syntax CONFig SOURce VOLTage LEVel MAXimum Parameters MINimum MAXimum Float Example CONF VOLT MAX 2 Query syntax CONFig SOURce VOLTage LEVel MAXimum CONFig SOURce FREQuency MINimum This...

Page 31: ...ent panel menu Command syntax CONFig SOURce FREQuency MAXimum Parameters MINimum MAXimum Float Example CONF FREQ MAX 400 Query syntax CONFig SOURce FREQuency MAXimum CONFig PROTect CURRent RMS This command is used to configure the current rms protection point This command is equivalent to Irms Protect in the front panel menu of the instrument Command syntax CONFig PROTect CURRent RMS Parameters MI...

Page 32: ...MS MODe CONFig PROTect CURRent PEAK This command is used to configure the current peak protection point The command function is equivalent to Ipeak Protect in the instrument panel menu Command syntax CONFig PROTect CURRent PEAK Parameters MINimum MAXimum Float Example conf prot curr peak 3 Query syntax CONFig PROTect CURRent PEAK CONFig PROTect CURRent PEAK MODe This command is used to set current...

Page 33: ...ger I RI O PHase O ON Example CONF BNC I RI Query syntax CONFig BNC PORT FUNCtion CONFig DIMMer MODe The command is used to configure the phase dimming mode leading trailing edge dimming This command function is equivalent to Dimmer in the instrument panel menu Command syntax CONFig DIMMer MODe Parameters LEADingedge TRAilingedge OFF Example conf dimm mod lead Query syntax CONFig DIMMer MODe CONFi...

Page 34: ...NFig MEASure CURRent MODe Parameters AUTO MANUal Query syntax CONFig MEASure CURRent MODe CONFig MEASure CURRent RANGe This command is used to set the current measurement range High range Middle range or Low range when the Manual mode is chosen Command syntax CONFig MEASure CURRent RANGe Parameters LOW MIDDle HIGH Query syntax CONFig MEASure CURRent RANGe SOURce PROTection CLEar This command is us...

Page 35: ...r4 Frequency Control Commands SOURce FREQuency IMMediate This command is used to set the current output frequency of the power supply Command syntax SOURce FREQuency IMMediate Parameters MINimum MAXimum DEFault Float Example freq 90 Query syntax SOURce FREQuency IMMediate ...

Page 36: ...ault Float Example phas star 80 Query syntax SOURce PHASe STARt SOURce PHASe END This command is used to set the termination phase angle of the power supply Command syntax SOURce PHASe END Parameters MINimum MAXimum DEFault Float Example phas end 80 Query syntax SOURce PHASe END SOURce DIMMer PHASe This command is used to set the phase angle of the phase dimming function Command syntax SOURce DIMM...

Page 37: ...Phase Control Commands Copyright Itech Electronic Co Ltd 26 Example dimm 120 Query syntax SOURce DIMMer PHASe ...

Page 38: ...output voltage of the power supply Command syntax SOURce VOLTage LEVel IMMediate AMPLitude Parameters MINimum MAXimum DEFault Float Example volt imm 100 Query syntax SOURce VOLTage LEVel IMMediate AMPLitude SOURce RANGe This command is used to set the voltage and current range Command syntax SOURce RANGe Parameters AUTO HIGH Example rang auto Query syntax SOURce RANGe ...

Page 39: ...ds Copyright Itech Electronic Co Ltd 28 Chapter7 Output Control Commands OUTPut STATe This command is used to turn on or off the power output Command syntax OUTPut STATe bool Parameters off on 0 1 Query syntax OUTPut STATe ...

Page 40: ...u do not clear the buffer a subsequent store will overwrite the old readings If the subsequent store is aborted before the buffer becomes full you could end up with some old readings still in the buffer Command syntax TRACe CLEar Parameters None TRACe FREE This command is used to read the status of storage memory After sending this command and addressing the power supply to talk two values separat...

Page 41: ...mand is used to select the source of readings to be placed in the buffer With VOLTage selected voltage readings are placed in the buffer With CURRent selected current readings are placed in the buffer With TWO selected voltage and current are placed in the buffer when storage is performed TRAC POIN maximum values is 1000 Command syntax TRACe FEED CRD Parameters VOLTage CURRent TWO Example TRAC FEE...

Page 42: ...data i e execute TRACe DATA Command syntax TRACe FEED CONTrol CRD Parameters NEVer NEXT Example TRAC FEED CONT NEXT Query syntax TRACe FEED CONT Returns CRD Related commands TRAC FEED TRACe DELay This command is used to set the delay time which is the time between sending the TRIGger IMMediate command starting to enter the buffering state and storing the value of the first point Setting this delay...

Page 43: ... NRf Parameters 0 00002 to 3600s MINimum MAXimum DEFault UNIT S second Example TRAC TIM 0 1 Query syntax TRACe TIMer MINimum MAXimum DEFault Returns NR3 TRACe DATA This command is used to read the readings stored in the cache and return these values to the PC interface Before sending this command you must ensure that the cache function is enabled i e TRAC FEED CONT NEXT has been executed and the d...

Page 44: ...mand is executed to set the size of the buffer 3 TRACe FEED This command is executed to set the type of reading source saved to the buffer such as VOLTage 4 TRACe FEED CONTrol This command is executed to set the save mode of the buffer such as NEXT 5 TRIGger IMMediate This command is executed to trigger the IT7300 instrument to enter data storage status 6 TRACe DATA This command is executed to rea...

Page 45: ...the readings are sent to the PC This command does not affect the instrument settings does not trigger the measurement operation only reads the most recently available readings This command returns the old readings until a new reading is made Command syntax FETCh SCALar CURRent AC Returns NR2 FETCh SCALar POWer AC REAL This command is used to read the most recent active power reading Command syntax...

Page 46: ...ecent frequency reading Command syntax FETCh SCALar FREQuency Returns NR2 FETCh SCALar CURRent AC PEAK This command is used to read the most recent peak current reading Command syntax FETCh SCALar CURRent AC PEAK Returns NR2 FETCh SCALar CURRent AC PEAK MAXimum This command is used to read the most recent maximum peak current reading Command syntax FETCh SCALar CURRent AC PEAK MAXimum Returns NR2 ...

Page 47: ...CALar POWer AC REAL This command is used to read the current output active power value Command syntax MEASure SCALar POWer AC REAL Returns NR2 MEASure SCALar POWer AC APParent This command is used to read the current output apparent power value Command syntax MEASure SCALar POWer AC APParent Returns NR2 MEASure SCALar POWer AC PFACtor This command is used to read the current output power factor va...

Page 48: ...m This command is used to read the current maximum peak current Command syntax MEASure SCALar CURRent AC PEAK MAXimum Returns NR2 MEASure FETCh This command is used to read the measurement frequency RMS voltage RMS current active power measurement power factor measurement apparent power measurement peak current measurement maximum peak current measurement Parameters None Note The FETCh and MEASure...

Page 49: ...Command syntax LIST STATe Parameters DISable ENABle Query syntax LIST STATe Returns DISable ENABle LIST RECall This command is used to recall a list file Command syntax LIST RECall NR1 Parameters 0 9 Example LIST REC 6 LIST STEP COUNt This command sets the number of steps in list file Command syntax LIST STEP COUNt Parameters 1 100 Example LIST STEP COUN 12 ...

Page 50: ... syntax LIST REPeat Parameters 1 10000 Example LIST REP 100 Query syntax LIST REPeat LIST STEP VOLTage This command is used to set LIST single step voltage Command syntax LIST STEP VOLTage Parameter 1 Number of steps 0 99 Parameter 2 Voltage Float Unit V Example LIST STEP VOLT 1 30 Query syntax LIST STEP VOLTage Parameters Number of steps 0 99 Example LIST STEP VOLT 1 ...

Page 51: ...ameter 2 Frequency value Float Example LIST STEP FREQ 1 60 Query syntax LIST STEP FREQuency Parameters Number of steps 0 99 Example LIST STEP FREQ 1 LIST STEP SLOPe This command is used to set the LIST single step slope time Parameters 1 and 2 are mandatory Command syntax LIST STEP SLOPe Parameter 1 Number of steps 0 99 Parameter 2 Slope time Float Unit mS Example LIST STEP SLOP 3 5 Query syntax L...

Page 52: ...ELl UNIT Parameters Number of steps 0 99 Parameter 2 Time unit SECond MINUte HOUR Example LIST STEP DWEL UNIT 2 SEC Query syntax LIST STEP DWELl UNIT Parameters Number of steps 0 99 LIST STEP DWELl This command is used to set LIST single step delay time Parameters 1 and 2 are mandatory Command syntax LIST STEP DWELl Parameter 1 Number of steps 0 99 Parameter 2 Time value Float Example LIST STEP DW...

Page 53: ...ST STEP SD STATe Parameter 1 Number of steps 0 99 Parameter 2 State DISable ENABle Example LIST STEP SD STAT 3 DIS Query syntax LIST STEP SD STATe Parameters Number of steps 0 99 Example LIST STEP SD STAT 2 LIST STEP SD CONTinue This command is used to set whether LIST single step inrush notch trigger continuously Parameters 1 and 2 are mandatory Command syntax LIST STEP SD CONTinue Parameter 1 Nu...

Page 54: ...notch voltage of the LIST single step Command syntax LIST STEP SD VOLTage Parameter 1 Number of steps 0 99 Parameter 2 Surge Notch Voltage Float Example LIST STEP SD VOLT 3 120 Query syntax LIST STEP SD VOLTage Parameters Number of steps 0 99 LIST STEP SD SITe This command is used to set the start position of the surge notch for the LIST single step Parameters 1 and 2 are mandatory Command syntax ...

Page 55: ...used to set the surge notch duration of the LIST single step Parameters 1 and 2 are mandatory Command syntax LIST STEP SD TIMe Parameter 1 Number of steps 0 99 Parameter 2 Time value Float unit ms Example LIST STEP SD TIM 3 20 Query syntax LIST STEP SD TIMe Parameters Number of steps 0 99 LIST SAVe BANK This command is used to store the list file in the specified storage area Command syntax LIST S...

Page 56: ...e is stored in the storage area 1 LIST RUN STEP COUNt This command is used to read the current LIST file running at which step Query syntax LIST RUN STEP COUNt Parameters None LIST RUN STEP REPeat This command is used to read the current LIST repeat times Query syntax LIST RUN STEP REPeat Parameters None ...

Page 57: ...s Command syntax SWEep STATe Parameters DISable ENABle Example SWEep STATe ENAB Query syntax SWEep STATe SWEep RECall This command is used to invoke the scan file Command syntax SWEep RECall NR1 Parameters 0 9 Example SWEep REC 4 SWEep STARt VOLTage This command is used to set the start voltage of the scan function Command syntax SWEep STARt VOLTage NR1 Parameters MINimum MAXimum Float ...

Page 58: ...R1 Parameters MINimum MAXimum Float Example SWEep STEP VOLTage 1 Query syntax SWEep STEP VOLTage SWEep END VOLTage This command is used to set the termination voltage of the scan function Command syntax SWEep END VOLTage NR 1 Parameters MINimum MAXimum Float Example SWEep END VOLTage 5 Query syntax SWEep END VOLTage SWEep STEP TIMe UNIT This command is used to set the single step time unit of the ...

Page 59: ...the scan function Command syntax SWEep STEP TIMe Parameters MINimum MAXimum Float Example SWE STEP TIM 3 Query syntax SWEep STEP TIMe SWEep STARt FREQuecy This command is used to set the start frequency of the scan function Command syntax SWEep STARt FREQuecy Parameters MINimum MAXimum Float Example SWE STAR FREQ 50 Query syntax SWEep STARt FREQuecy SWEep STEP FREQuecy This command is used to set ...

Page 60: ...Quecy Parameters MINimum MAXimum Float Example SWE STEP FREQ 1 Query syntax SWEep STEP FREQuecy SWEep END FREQuecy This command is used to set the stop frequency of the scan function Command syntax SWEep END FREQuecy Parameters MINimum MAXimum Float Example SWE END FREQ 50 Query syntax SWEep END FREQuecy ...

Page 61: ...meters None Related commands TRG TRIG SOUR TRIGger SOURce This command is used to select the source of the trigger signal The power supply can receive the trigger signal from the panel keyboard trigger Trigger key receive BUS trigger signal or external signal trigger Trigger source is set to MANUAL trigger when RST command is executed Command syntax TRIG SOUR mode Parameters MANUal BUS EXTern Quer...

Page 62: ...ode Command syntax DISPlay WINDow STATe bool Parameters 0 1 OFF ON Example DISPlay 1 Query syntax DISPlay Returns 0 1 DISPlay TEXT Reference value This command is used to display a message on the front panel display Up to 12 characters can be displayed in one message and the extra characters will be ignored Commas periods and semicolons will not be displayed as separate characters but will be disp...

Page 63: ... Parameters 0 1 ON OFF Example CAL SEC 1 CAL SEC OFF Query syntax CALibrate SECure STATe Parameters None CALibrate SAVe This command is used to save the calibration coefficients in non volatile memory Command syntax CALibrate SAVe Parameters None CALibrate VOLTage LEVel The command is used to specify the voltage calibration point P1 P2 P3 P4 calibration points must be sequentially calibrated Comma...

Page 64: ...t calibration point P1 P2 calibration points must be sequentially calibrated Command syntax CALibrate CURRent LEVel point Parameters P1 P2 CALibrate CURRent DATa numeric value This command returns the actual output current value of the current calibration point of the power supply Command syntax CALibrate CURRent DATa NRf Parameters NRf Example CAL CURR 3 0002A CALibrate POWer LEVel This command i...

Page 65: ...e STRing This command is used to set the calibration information during calibration Command syntax CALibrate STRing Parameters Parameters Support inputting a maximum length of 24 letters of string which is recorded the user calibration information Such as the calibration time frequency and so on Example CAL STR 2005 1 9 20 12 CALibrate STRing This command is used to check the current calibration i...

Page 66: ...yte register Command syntax CLS Arguments None ESE This command can set the parameter of standard event enable register Setting parameter can determine which bit of standard event register is 1 and the byte will enable ESB of status byte register is 1 Command syntax ESE NR1 Parameters 0 255 Power on value Refer to PSC command Example ESE 128 Query syntax ESE Returns NR1 Related commands ESR PSC ST...

Page 67: ...rd event status register is as the same as the standard event status enable register Query syntax ESR Parameters None Returns NR1 Related commands CLS ESE ESE OPC IDN This command is used to query related information of AC power Query syntax IDN Arguments None Returns string Example IDN OPC When all commands before this command are executed bit OPC in standard event register will be set to 1 Comma...

Page 68: ...s the condition of the Status Request Enable Register After executing this command AC power supply will return back a decimal value which is a binary weighted sum of all bits from the enable register Command syntax SRE NRf Parameters 0 255 Power on value Refer to PSC command Example SRE 128 Query syntax SRE Returns NR1 Related commands ESE ESR PSC STB STB This command can read the data from status...

Page 69: ...y is BUS order trigger mode the order will Generates a trigger signal The function is the same as TRIGger IMMediate Command syntax TRG Parameters None Related commands TRIG TRIG SOUR SAV This command will save the current setting value of the power supply to the specified storage area These parameters include set voltage set frequency start phase stop phase output gear and Dimmer phase angle Comma...

Page 70: ...further commands until all pending operations are completed Pending operations are as defined under the OPC command WAI can be aborted only by sending the power supply a device clear command Command syntax WAI Parameters None Related commands OPC TST This command is used to query the self test by the instrument 0 indicates that self test succeeds other Arguments indicate self test fails In additio...

Page 71: ...IEEE488 2 Common Commands Copyright Itech Electronic Co Ltd 60 Parameters None Returns NR1 OPT System reservation command ...

Page 72: ...Appendixes Copyright Itech Electronic Co Ltd 61 Appendixes Register Description ...

Page 73: ...S Thank you for purchasing ITECH products If you have any doubt about this product please contact us as follow 1 Visit ITECH website www itechate com 2 Select the most convenient contact for further consultation ...

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