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ITech IT8600 Series Manual

Programmable ac/dc electronic load
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Via Acquanera, 29
22100 Como
tel. 031.526.566 (r.a.) fax 031.507.984
info@calpower.it
www.calpower.it
Programmable AC/DC
Programming Guide for IT8600
Electronic Load
Series
Model: IT8615/IT8615L/IT8616/IT8617
/IT8624/IT8625/IT8626/IT8627/IT8628
Version: V2.1

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  • Page 1 Via Acquanera, 29 22100 Como tel. 031.526.566 (r.a.) fax 031.507.984 info@calpower.it www.calpower.it Programmable AC/DC Electronic Load Programming Guide for IT8600 Series Model: IT8615/IT8615L/IT8616/IT8617 /IT8624/IT8625/IT8626/IT8627/IT8628 Version: V2.1...
  • Page 2 Trademarks any information contained herein. A WARNING sign denotes a Should ITECh and the user enter Pentium is U.S. registered trademarks hazard. It calls attention to an into a separate written agreement of Intel Corporation.

  • Page 3: Limitation Of Warranty

    PREPAID. And ITECH will pay for return of the product to customer.  If the product is returned to ITECH for warranty service from overseas, all the freights, duties and other taxes shall be on the account of customer. Limitation of Warranty This Warranty will be rendered invalid if the product is: ...

  • Page 4: Safety Precautions

    Failure to comply with these precautions or specific warnings elsewhere in this manual will constitute a default under safety standards of design, manufacture and intended use of the instrument. ITECH assumes no liability for the customer’s failure to comply with these precautions.
  • Page 5 Operating temperature 5°C-40°C Operating humidity humidity 20%-80% (non-condensation) Storage temperature -20°C-50 °C ≤2,000m Altitude Installation category Pollution degree Pollution degree 2 NOTE To make accurate measurements, allow the instrument to warm up for 30 min. Copyright © Itech Electronic Co., Ltd.

  • Page 6: Regulatory Marking

    With reference to the equipment classifications described in the Annex I of the WEEE Directive, this instrument is classified as a .”Monitoring and Control Instrument”. To return this unwanted instrument, contact your nearest ITECH office. Copyright © Itech Electronic Co., Ltd.

  • Page 7: Compliance Information

    Connection of the instrument to a test object may produce radiations beyond the specified limit. Use high-performance shielded interface cable to ensure conformity with the EMC standards listed above. Safety Standard IEC 61010-1:2010/ EN 61010-1:2010 Copyright © Itech Electronic Co., Ltd.

  • Page 8: Table Of Contents

    FETCh:CURRent:MAXPeak? ......................... 11 MEASure:FREQuency? ........................... 11 FETCh:FREQuency? ............................11 MEASure:POWer? ............................12 FETCh:POWer? ............................... 12 MEASure:POWer:MAXimum? ........................12 FETCh:POWer:MAXimum?..........................12 MEASure:POWer:APParent? ......................... 12 FETCh:POWer:APParent? ..........................12 MEASure:POWer:PFACtor? ........................... 13 FETCh:POWer:PFACtor? ..........................13 MEASure:POWer:REACtive? ......................... 13 Copyright © Itech Electronic Co., Ltd.
  • Page 9 CURRent ................................22 [SOURce:]CURRent:LIMit[:LEVel][:CV] ......................23 CURRent:PROTection ............................. 23 CURRent:PEAK:PROTection .......................... 24 CURRent:PROTection:DELay......................... 24 CURRent:PROTection:STATe ......................... 25 POWer ................................25 [SOURce:]POWer:MAXimum[:LEVel] ......................26 POWer:PROTection ............................26 POWer:PROTection:DELay ..........................27 POWer:PROTection:STATe ..........................27 RESistance ............................... 28 Copyright © Itech Electronic Co., Ltd.
  • Page 10 SYSTem:CFPF:PRIOrity..........................41 SYSTem:HARMonic:FORMula ........................42 SYSTem:COMMunicate:GPIB:ADDRess ...................... 42 SYSTem:COMMunicate:LAN:CURRent:ADDRess ..................43 SYSTem:COMMunicate:LAN:CURRent:DGATeway..................43 SYSTem:COMMunicate:LAN:CURRent:SMASk ................... 44 SYSTem:COMMunicate:LAN:DHCP ......................44 SYSTem:COMMunicate:LAN:SOCKetport ....................45 SYSTem:COMMunicate:LAN:MACaddress? ....................45 SYSTem:BEEPer:IMMediate .......................... 46 SYSTem:BEEPer.............................. 46 SYSTem:VERSion? ............................46 viii Copyright © Itech Electronic Co., Ltd.
  • Page 11 *CLS .................................. 59 *ESE .................................. 59 *ESR? ................................60 *IDN? ................................. 60 *OPC ................................. 60 *RST .................................. 61 *SRE .................................. 61 *STB .................................. 62 *SAV .................................. 62 *RCL .................................. 63 *TST？ ................................63 Appendix ..............................64 Copyright © Itech Electronic Co., Ltd.
  • Page 12 IT8600 Programming Guide Copyright © Itech Electronic Co., Ltd.

  • Page 13: Quality Certification And Assurance

    Subsystem commands perform specific electronic load functions. They are organized into an inverted tree structure with the "root" at the top. The following figure shows a portion of a subsyste command tree, from which Copyright © Itech Electronic Co., Ltd.
  • Page 14 (:), which discards any previous header path. For example, you could clear the output protection and check the status of the Operation Condition register in one message by using a root specifier as follows: PROTection:CLEAr;:STATus:OPERation:CONDition? Copyright © Itech Electronic Co., Ltd.
  • Page 15 Query Observe the following precautions with queries:  Set up the proper number of variables for the returned data. For example, if you are reading back a measurement array, you must dimension the array Copyright © Itech Electronic Co., Ltd.

  • Page 16: 1.4 Command Format

    1 by omitting the whole SOURce node. It is because the channel 1 is the default channel for SOURce language node. On the other hand, if you want to refer to channel Copyright © Itech Electronic Co., Ltd.
  • Page 17 Execute functions like reset, self inspection and status operation. Generic commands always start with a asterisk (*) and occupy 3 character sizes, including one or more Parameter. Key words of a command and the first Copyright © Itech Electronic Co., Ltd.

  • Page 18: 1.5 Data Type

    They may be expressed in both upper and lower case. The query response always returns uppercase Parameter in short format. The following commands require discrete Parameter in voltage unit: Copyright © Itech Electronic Co., Ltd.

  • Page 19: 1.6 Remote Operation

    The interface accepts MsgID = TRIGGER USBTMC command message and forwards TRIGGER requests to the function layer. The USB488device capabilities of the electronic load are described below:  The device understands all mandatory SCPI commands.  The device is SR1 capable. Copyright © Itech Electronic Co., Ltd.
  • Page 20 CONFIG] to enter communication configuration page. Select LAN by pressing arrow keys and then configure Gateway, IP, Mask and Socket Port in the LAN option. Use a cross network cable through LAN interface to connect PC. Copyright © Itech Electronic Co., Ltd.

  • Page 21: Chapter2 Measurement Commands

    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]? Copyright © Itech Electronic Co., Ltd.

  • Page 22: Measure:current:rms

    This command is used to read the maximum current value in load input terminal. Command syntax: MEASure[:SCALar]:CURRent[:AMPLitude]:MAXimum? FETCh[:SCALar]:CURRent[:AMPLitude]:MAXimum? Returned value: <NR3> MEASure:CURRent:CFACtor? FETCh:CURRent:CFACtor? This command is used to read the crest factor of current. Command syntax: MEASure[:SCALar]:CURRent:CFACtor? FETCh[:SCALar]:CURRent:CFACtor? Returned value: <NR3> Copyright © Itech Electronic Co., Ltd.

  • Page 23: Measure:current:minpeak

    This command is used to read the positive peak current of electronic load. Command syntax: MEASure[:SCALar]:CURRent:MAXPeak? FETCh[:SCALar]:CURRent:MAXPeak? Returned value: <NR3> MEASure:FREQuency? FETCh:FREQuency? This command is used to read the frequency of Hertz as the unit. Command syntax: MEASure[:SCALar]:FREQuency? FETCh[:SCALar]:FREQuency? Returned value: <NR3> Copyright © Itech Electronic Co., Ltd.

  • Page 24: Measure:power

    This command is used to read the maximum input power value. Command syntax: MEASure[:SCALar]:POWer[:AMPLitude]:MAXimum? FETCh[:SCALar]:POWer[:AMPLitude]:MAXimum? Returned value: <NR3> MEASure:POWer:APParent? FETCh:POWer:APParent? This command is used to read the apparent power of VA as the unit. Command syntax: MEASure[:SCALar]:POWer:APParent? FETCh[:SCALar]:POWer:APParent? Returned value: <NR3> Copyright © Itech Electronic Co., Ltd.

  • Page 25: Measure:power:pfactor

    This command is used to read the reactive power of VAR as the unit. Command syntax: MEASure[:SCALar]:POWer:REACtive? FETCh[:SCALar]:POWer:REACtive? Returned value: <NR3> MEASure:RESistance? FETCh:RESistance? This command is used to read the resistance value of ohm as the unit. Command syntax: MEASure[:SCALar]:RESistance? FETCh[:SCALar]:RESistance? Returned value: <NR3> Copyright © Itech Electronic Co., Ltd.

  • Page 26: Measure:voltage

    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:MAXimum? FETCh:VOLTage:MAXimum? This command is used to read the maximum voltage value. Command syntax: MEASure:[SCALar:]VOLTage:[AMPLitude:]MAXimum? FETCh:[SCALar:]VOLTage:[AMPLitude:]MAXimum? Returned value: <NR3> Copyright © Itech Electronic Co., Ltd.

  • Page 27: Measure:voltage:thdistort

    <NR3> MEASure:TEMPerature? FETCh:TEMPerature? This command is used to read the measurement value of temperature. Command syntax: MEASure[:SCALar]:TEMPerature? FETCh[:SCALar]:TEMPerature? Returned value: <NR3> MEASure:CURRent:AMPLitude:HOLD This command is used to set the update mode of measuring extremum. Copyright © Itech Electronic Co., Ltd.

  • Page 28: Measure:harmonic

    The absolute value of 0-50 times voltage harmonic.  0-50 times voltage harmonic component  0-50 times harmonic phase angle Command syntax: MEASure:HARMonic? Parameter: None Returned value: <NR3>,<NR3>………..<NR3> MEASure:VOLTage:HARMonic? This command is used to read the harmonic amplitude. Copyright © Itech Electronic Co., Ltd.

  • Page 29: Measure:phase:harmonic

    This command is used to read the percentage of each harmonic. Command syntax: MEASure:VOLTage:HARMONIC:DISTort? <TOTAL|ALL|NR1> Parameter: TOTal|ALL or NR1 Returned value: <NR3> FETCh:VOLTage:HARMonic? This command is used to read all the harmonic data. Command syntax: FETCh:VOLTage:HARMONIC[:AMPLitude]? <FUNDamental|TOTal|ALL or NR1> Copyright © Itech Electronic Co., Ltd.

  • Page 30: Fetch:phase:harmonic

    The order of returned data is the absolute value of total harmonic, the total harmonic component, the fundamental frequency, and each range is as follows:  The absolute value of 0-50 times voltage harmonic.  0-50 times voltage harmonic component  0-50 times harmonic phase angle Copyright © Itech Electronic Co., Ltd.
  • Page 31 Measurement Commands Command syntax: FETCh:HARMonic? Returned value: <NR3>,<NR3>,…….<NR3> Copyright © Itech Electronic Co., Ltd.

  • Page 32: Chapter3 Load Commands

    This command indicates whether the electronic load is really applied to the loop. Command syntax: [SOURce:]INPut:REAL[:STATe]? Returned value: FUNCtion This command is used to read the operating mode of electronic load. Command syntax: [SOURce:]FUNCtion <CURRent|RESistance|VOLTage|POWer|SHORt > Parameter: CURRent|RESistance|VOLTage|POWer|SHORt Copyright © Itech Electronic Co., Ltd.

  • Page 33: Input:short

    [SOURce:]INPut:SHORt <bool> Parameter: 0|1|OFF|ON Reset value: Query Syntax: [SOURce:]INPut:SHORt? Returned value: INPut:SHORt:FUNCtion This command is used to enable or disable the short function. Command syntax: [SOURce:]INPut:SHORt:FUNCtion[:STATe] <bool> Parameter: O|1|OFF|ON Reset value: Query Syntax: [SOURce:]INPut:SHORt:FUNCtion[:STATe]? Copyright © Itech Electronic Co., Ltd.

  • Page 34: [Source:]Protection: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 value: Query Syntax: [SOURce:]PROTection:AUTO:CLEar[:STATe]? Returned value: CURRent This command is used to set the current value of electronic load. Command syntax: [SOURce:]CURRent[:LEVel][:IMMediate][:AMPLitude] <NRf+> Copyright © Itech Electronic Co., Ltd.

  • Page 35: [Source:]Current:limit[:Level][:Cv]

    This command is used to set the maximum current value in CV mode. Command syntax [SOURce:]CURRent:LIMit[:LEVel][:CV] Parameter: MINimum|MAXimum|DEFault or NRf Unit Reset value: MAXimum Query Syntax: [SOURce:]CURRent:LIMit[:LEVel][:CV]? [MINimum|MAXimum] Returned value <NR3> CURRent:PROTection This command is used to set software overcurrent protection level ofelectronic load. Copyright © Itech Electronic Co., Ltd.

  • Page 36: Current:peak:protection

    Command syntax: [SOURce:]CURRent:PEAK:PROTection[:LEVel] <NRF+> Parameter: MINimum|MAXimum|DEFault or NRf Reset value: MAXimum Query Syntax: [SOURce:]CURRent:PEAK:PROTection[:LEVel]? [MINimum|MAXimum] Returned value: <NR3> CURRent:PROTection:DELay This command is used to set the load delay time of software overcurrent protection. Copyright © Itech Electronic Co., Ltd.

  • Page 37: Current:protection:state

    This command is used to enable or disable the overcurrent protection of electronic load. Command syntax: [SOURce:]CURRent:PROTection:STATe <bool> Parameter: 0|1|OFF|ON Query Syntax: [SOURce:]CURRent:PROTection:STATe? Returned value: POWer This command is used to read power value of Watts as a unit. Command syntax: [SOURce:]POWer[:LEVel][:IMMediate][:AMPLitude] <NRf+> Copyright © Itech Electronic Co., Ltd.

  • Page 38: [Source:]Power:maximum[:Level]

    Command syntax: [SOURce:]POWer:MAXimum[:LEVel] Parameter: MINimum|MAXimum|DEFault or NRf Unit Reset value MAXimum Query Syntax: [SOURce:]POWer:MAXimum[:LEVel]? [MINimum|MAXimum] Returned value: POWer:PROTection This command is used to set the power protection level of electronic load. Command syntax: [SOURce:]POWer:PROTection[:LEVel] <NRf+> Copyright © Itech Electronic Co., Ltd.

  • Page 39: Power:protection:delay

    Command syntax: [SOURce:]POWer:PROTection:DELay <NRf+> Parameter: MINimum|MAXimum|DEF or NR3 Unit: Reset value: Query Syntax: [SOURce:]POWer:PROTection:DELay? [MINimum|MAXimum] Returned value: <NR3> POWer:PROTection:STATe This command is used to set power protection of electronic load. Command syntax: [SOURce:]POWer:PROTection:STATe <bool> Copyright © Itech Electronic Co., Ltd.

  • Page 40: Resistance

    [SOURce:]RESistance[:LEVel][:IMMediate][:AMPLitude] <NRf+> Parameter: MINimum|MAXimum|DEFault or NRf Unit: Reset value: MAXimum Query Syntax: [SOURce:]RESistance[:LEVel][:IMMediate][:AMPLitude]？ [MINimum|MAXimum] Returned value: <NR3> VOLTage This command is used to set the voltage level of electronic load. Command syntax: [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude] <NRF+> Copyright © Itech Electronic Co., Ltd.

  • Page 41: Cfactor

    [SOURce:]CFACtor[:LEVel][:IMMediate][:AMPLitude] <NRf+> Parameter: MINimum|MAXimum|DEFault or NRf Unit: None Reset value: MINimum Query Syntax: [SOURce:]CFACtor[:LEVel][:IMMediate][:AMPLitude]? [MINimum|MAXimum] Returned value: <NR3> PFACtor This command is used to set the PF value of electronic load. Command syntax: [SOURce:]PFACtor[:LEVel][:IMMediate][:AMPLitude] <NRf+> Copyright © Itech Electronic Co., Ltd.

  • Page 42: 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: Query Syntax: [SOURce:]INPut:TIMer[:STATe]? Returned value: INPut:TIMer:DELay This command is used to set the delay time of timer. Command syntax: [SOURce:]INPut:TIMer:DELay <NRf+> Parameter: MINimum|MAXimum|DEFault or NRf Copyright © Itech Electronic Co., Ltd.

  • Page 43: Measure:type

    Parameter: METer|HARMonic|SCOPe Reset value: METer Query Syntax: [SOURce:][INPut:]MEASure:TYPE? Returned value: METer|HARMonic|SCOPe RATE:DCCV This command is used to set the load rate in CV mode under DC working mode. Command syntax: [SOURce:]RATE:DCCV <SLOW|HIGH> Parameter: SLOW|HIGH Copyright © Itech Electronic Co., Ltd.

  • Page 44: Rate:cc

    This command is used to set the 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 is used to set the voltage trigger level. Command syntax: WAVE:TRIGger:VOLTage[:LEVel] Parameter <NRf> Unit Query Syntax: WAVE:TRIGger:VOLTage[:LEVel]? Copyright © Itech Electronic Co., Ltd.

  • Page 45: Wave:trigger:current[:Level]

    This command can set or read the device taking which kind waveform as trigger source. Command syntax: WAVE:TRIGger:SOURce <VOLTage|CURRent> Parameter: VOLTage|CURRent Query Syntax: WAVE:TRIGger:SOURce? Returned value: VOLTage|CURRent WAVE:TRIGger:SLOPe This command is used to set trigger slope when takes waveform as trigger source. Copyright © Itech Electronic Co., Ltd.

  • Page 46: Wave:trigger:mode

    This time is used to set the trigger delay time when take a waveform as trigger source. (Note: the delay time setting should be less than the time width of the whole screen. Command syntax: WAVE:TRIGger:DELay:TIME <NRf> Parameter: <NRf> Unit: Copyright © Itech Electronic Co., Ltd.

  • Page 47: Wave:trigger:divtime

    This command 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: Query Syntax: WAVE:TRIGger:DIVTime? Returned value: <NR3> WAVE:RUN This command is used to start waveform capture. Command syntax: WAVE:RUN Parameter: None Query Syntax: None Copyright © Itech Electronic Co., Ltd.

  • Page 48: Wave:stop

    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 voltage data after normalization. Command syntax: WAVE:VOLTage:DATA? Parameter: <n> Query Syntax: WAVE:VOLTage:DATA? Returned value: NR1，NR1…NRf，NRf Copyright © Itech Electronic Co., Ltd.

  • Page 49: Wave:current:data

    This command is used to query the trigger status. Command syntax: WAVE:TRIGger[:STATe]? Returned value: Auto| Auto?|Trig|Trig?|Stop WAVE:SCOPe:SELection This command is used to set waveform display options. Command syntax: WAVE:SCOPe:SELection Parameter: U|A|UA Query syntax: WAVE:SCOPe:SELection? Return value: U|A|UA Copyright © Itech Electronic Co., Ltd.

  • Page 50: Wave:knob:selection

    WAVE:VOLTage:BASE This command is used to set the voltage reference. Command syntax: WAVE:VOLTage:BASE Parameter: <NRf> Unit: Query Syntax: WAVE:VOLTage:BASE? Returned value: WAVE:VOLTage:RANGe This command is used to set the voltage range. Command syntax WAVE:VOLTage:RANGe Copyright © Itech Electronic Co., Ltd.

  • Page 51: Wave:current:base

    This command is used to set the current reference. Command syntax: WAVE:CURRent:BASE <NRf> Parameter: Unit: Reset value: Query Syntax: WAVE:CURRent:BASE? Returned value: <NR3> WAVE:CURRent:RANGe This command is used to set the current range. Command syntax: WAVE:CURRent:RANGe Parameter: Unit Copyright © Itech Electronic Co., Ltd.

  • Page 52: Port:output

    Command syntax: PORT:OUTPut[:STATe] <bool> Parameter: <0|1|OFF|ON> Query Syntax: PORT:OUTPut[:STATe]? Returned value: AVERage:COUNt This command is used to set the average count of functions. Command syntax: AVERage:COUNt <NR1> Parameter: <1-16> Query Syntax: AVERage:COUNt? Returned value: Copyright © Itech Electronic Co., Ltd.

  • Page 53: Chapter4 System Commands

    This command is used to set the CF/PF/BOTH mode. Command syntax: SYSTem:[SETup:]CFPF:MODE <CF|PF|BOTH> Parameter: CF|PF|BOTH Query Syntax: SYSTem:[SETup:]CFPF:MODE? Returned value: CF|PF|BOTH SYSTem:CFPF:PRIOrity This command is used to set the priority of CF and PF. Copyright © Itech Electronic Co., Ltd.

  • Page 54: System:harmonic:formula

    SYSTem[:SETup]:HARMonic:[THDistort:]FORMula <THDF|THDR> Parameter: THDF|THDR Query Syntax: SYSTem[:SETup]:HARMonic:[THDistort:]FORMula? Returned value: THDF| THDR SYSTem:COMMunicate:GPIB:ADDRess This command is used to set GPIB address of electronic load. Command syntax: SYSTem:COMMunicate:GPIB[:SELF]:ADDRess <NR1> Parameter: Parameter range: 0 to 31 Reset value: Copyright © Itech Electronic Co., Ltd.

  • Page 55: System:communicate:lan:current:address

    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:COMMunicate:LAN:CURRent:DGATeway This command is used to set the load gateway. Command syntax: SYSTem:COMMunicate:LAN:CURRent:DGATeway Parameter: <STR> Unit: None Reset value: 192.168.0.1 Copyright © Itech Electronic Co., Ltd.

  • Page 56: System:communicate:lan:current:smask

    Reset value: 255.255.255.0 Query Syntax: SYSTem:COMMunicate:LAN:CURRent:SMASk? Returned value: <STR> SYSTem:COMMunicate:LAN:DHCP This command is used to determine whether set up the dynamic IP address. Command syntax: SYSTem:COMMunicate:LAN:DHCP[:STATe] <bool> Parameter: 0|1|0FF|ON Query Syntax: SYSTem:COMMunicate:LAN:DHCP[:STATe]? Returned value: Copyright © Itech Electronic Co., Ltd.

  • Page 57: System:communicate:lan:socketport

    None Reset value: 30000 Query Syntax: SYSTem:COMMunicate:LAN:SOCKetport? Returned value: <NR1> SYSTem:COMMunicate:LAN:MACaddress? This command is used to return the communication MAC address. Command syntax: SYSTem:COMMunicate:LAN:MACaddress? Parameter: <STR> Unit: None Query Syntax: SYSTem:COMMunicate:LAN:MACaddress? Returned value: <STR> Copyright © Itech Electronic Co., Ltd.

  • Page 58: System:beeper:immediate

    SYSTem:VERSion? This command is used to query the device version. Return value is a character string as like.”YYYY.V”.YYYY represents the year and V means the version of that year. Command syntax: SYSTem:VERSion? Parameter: None Copyright © Itech Electronic Co., Ltd.

  • Page 59: System:error

    This command is used to switch the AC load to local operation mode. After this command is executed, all the keys on the panel are available. Command syntax: SYSTem:LOCal Parameter: None Query Syntax: None Copyright © Itech Electronic Co., Ltd.

  • Page 60: System:rwlock

    Command syntax: SYSTem:RWLock Parameter: None Returned value: None SYSTem:BACKlight:BRIGhtness This command is used to set the brightness of backlight. Command syntax: SYSTem:BACKlight:BRIGhtness <NR1> Parameter: Parameter range: 1 to 9 Query Syntax: SYSTem:BACKlight:BRIGhtness? Returned value: <NR1> Copyright © Itech Electronic Co., Ltd.

  • Page 61: Chapter5 Status Commands

    This command sets or reads the value of the Questionable Enable register and the AC load will return back a decimal value which is a binary weighted sum of all bits from the enable register. Copyright © Itech Electronic Co., Ltd.

  • Page 62: Status:operation

    Bit 8 Load Fail STATus:OPERation? This query returns the value of the Operation Event register. After this command is executed, the value of the Operation Event register will be cleared. Query syntax: STATus:OPERation[:EVENt]? Parameter: None Copyright © Itech Electronic Co., Ltd.

  • Page 63: Status:operation:condition

    Operation Event register to set the operation summary bit (OPER) of the Status Byte register. Command syntax: STATus:OPERation:ENABle <NR1> Parameter: 0～65535 Example: STATus:OPERation:ENABle 128 Query Syntax: STATus:OPERation:ENABle? Copyright © Itech Electronic Co., Ltd.
  • Page 64 Status Commands Returned value: <NR1> Copyright © Itech Electronic Co., Ltd.

  • Page 65: Chapter6 Calibration Commands

    For example:CAL:SEC 0, N3301A CAL:SEC ON Reset value: Query Syntax: CALibrate:SECure[:STATe]? Returned value: <NR1> Relevant Command: CAL:SAV CAL:INIT CALibrate:INITital This command can only be used in calibration mode. It restores factory calibration constants from nonvolatile memory. Command syntax: CALibrate:INITial Copyright © Itech Electronic Co., Ltd.

  • Page 66: Calibrate:save

    You must first select a calibration level (with CALibrate:VOLTage:POINt) for the value being entered. These constants are not stored in nonvolatile memory until they are saved with CALibrate:SAVE. Command syntax: CALibrate:VOLTage[:LEVel] <NRf> Copyright © Itech Electronic Co., Ltd.

  • Page 67: Calibrate:current:point

    This command is used to enter a calibration current value that you obtain by reading an external meter. Command syntax: CALibration:CURRent[:LEVel] <NRf> Parameter: External reading CALibrate:VOLTage:METer:POINt This command is used to calibrate the measurement voltage point. Command syntax: CALibrate:VOLTage:METer:POINt <point> Copyright © Itech Electronic Co., Ltd.

  • Page 68: Calibrate:voltage:meter

    CALibrate:CURRent:METer:POINt <point> Parameter: P1|P2|P3|P4 CALIbrate:CURRent:METer This command is used to calibrate the measurement current level. Command syntax: CALibrate:CURRent:METer[:LEVel] <NRf> Parameter: CALibrate:RESistance:POINt This command is used to calibrate the measurement resistance point. Command syntax: CALibrate:RESistance:POINt <point> Copyright © Itech Electronic Co., Ltd.

  • Page 69: Calibrate:resistance

    Command syntax: CALibrate:RESistance:BIAS:POINt <point> Parameter: P1|P2|P3|P4 Unit: None CALibrate:RESistance:BIAS This command is used to calibrate the bias level of resistance. Command syntax: CALibrate:RESistance:BIAS[:LEVel] <NRf>,<NRf> Parameter: Voltage< external reading >, Current< external reading > Unit: （V,A） Copyright © Itech Electronic Co., Ltd.

  • Page 70: Calibrate:current:limit:point

    This command is used to calibrate 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 in CV mode. Command syntax: CALibrate:CURRent:LIMit[:LEVel] <NRf> Parameter: Current< external reading > Unit: Copyright © Itech Electronic Co., Ltd.

  • Page 71: Chapter7 Common Commands

    ESB bit in status byte register to be 1. Command syntax *ESE <NR1> Parameter 0～255 Power-On Value Refer to *PSC command Example *ESE 128 Query Syntax *ESE? Returned value <NR1> Relevant Command *ESR? *PSC *STB? Copyright © Itech Electronic Co., Ltd.

  • Page 72: Esr

    After all other commands executed before *OPC command, the OPC bit in standard event register will be set to 1.Sending query standard event register command will return value 1 into the output buffer. Command syntax *OPC Copyright © Itech Electronic Co., Ltd.

  • Page 73: Rst

    AC load will return back a decimal value which is a binary weighted sum of all bits from the enable register. Command syntax *SRE <NRf> Parameter 0～255 Power-on Value Refer to *PSC command Example *SRE 128 Query Syntax *SRE? Returned value <NR1> Copyright © Itech Electronic Co., Ltd.

  • Page 74: Stb

    *SAV This command stores the present state of the electronic load to a specified location in memory. These parameters including current settings, voltage settings, operation mode and so on. Command syntax *SAV <NRf> Parameter Copyright © Itech Electronic Co., Ltd.

  • Page 75: Rcl

    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 indicates an error code. In addition, a false information will be generated when the test fails. Query Syntax: *TST？ Parameter: None Returned value: <NR1> Copyright © Itech Electronic Co., Ltd.

  • Page 76: Appendix

    Mnemonic Value Bit Meaning Weight Operation Complete Query Error Device Error Execution Error. Command parameter is invalid or inconsistent with electronic load, or the command cannot be executed. Command Error. Command syntax is incorrect. Copyright © Itech Electronic Co., Ltd.
  • Page 77 Appendix Description of Status Byte Bit Mnemonic Value Bit Meaning Weight CSUM QUES A questionable enable event has occurred Message Available Event Status Bit RQS/MSS Request for service Copyright © Itech Electronic Co., Ltd.
  • Page 78 Contact US Thank you for purchasing ITECH products. 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 convenient contact for further consultation.

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