ITech IT8500+ Series Programming Manual
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ITech IT8500+ Series Programming Manual

Dc programmable electronic load
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DC Programmable Electronic
Load
Series IT8500+ Programming Guide
Model:
IT8511+/IT8511A+/IT8512+/IT8512A+/
IT8512B+/IT8512C+/IT8512H+/IT8513A+/
IT8513B+/IT8513C+/IT8514C+/IT8514B+/
IT8516C+
Revision: V1.2

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  • Page 1 DC Programmable Electronic Load Series IT8500+ Programming Guide Model: IT8511+/IT8511A+/IT8512+/IT8512A+/ IT8512B+/IT8512C+/IT8512H+/IT8513A+/ IT8513B+/IT8513C+/IT8514C+/IT8514B+/ IT8516C+ Revision: V1.2...
  • Page 2 “Caution” signs indicate danger. It is electronic storage and retrieval or extent of laws, ITECH is not committed translation into a foreign language) required to pay attention to the contents to any explicit or implied guarantee for...

  • Page 3: Warranty Service

    ITECH, and ITECH will 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...

  • Page 4: Safety Precautions

    Always clean the casing with a dry cloth. Do not clean the internals. ⚫ Make sure the vent hole is always unblocked. Environmental Conditions The IT8500+ series electronic load can only be used indoors or in low condensation areas. The following table shows general environmental Copyright © ITECH Electronic Co., Ltd.

  • Page 5: Regulation Tag

    According to the equipment classification in Annex I of the WEEE directive, this instrument belongs to the “Monitoring” product. If you want to return the unnecessary instrument, please contact the nearest sales office of ITECH. Copyright © ITECH Electronic Co., Ltd.

  • Page 6: 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 7: Table Of Contents

    [SOURce:]VOLTage:RANGe:AUTO[:STATe] ..................25 [SOURce:]CURRent:SLEW[:BOTH] <NRf+> ................... 26 [SOURce:]CURRent:SLEW[:BOTH]? ...................... 26 [SOURce:]CURRent:SLEW:RISE <NRf+> ....................26 [SOURce:]CURRent:SLEW:RISE? ......................27 [SOURce:]CURRent:SLEW:FALL <NRf+> ....................27 [SOURce:]CURRent:SLEW:FALL? ......................28 [SOURce:]CURRent:PROTection[:LEVel] <NRf+> ................. 28 [SOURce:]CURRent:PROTection[:LEVel]? ..................... 29 [SOURce:]POWer:PROTection[:LEVel] <NRf+> ..................29 Copyright © ITECH Electronic Co., Ltd.
  • Page 8 OCP:IEND? .............................. 49 OCP:STEP ............................... 50 OCP:STEP? ............................. 50 OCP:DWELl <NRf+> ..........................50 OCP:DWEL? ............................51 OCP:VTRig <NRf+> ..........................51 OCP:VTRig? ............................52 OCP:RESult[:OCP]? ..........................52 OCP:RESult:PMAX? ..........................52 Chapter8 Peak Testing Commands....................54 Copyright © ITECH Electronic Co., Ltd.
  • Page 9 *PSC ................................ 68 *PSC? ..............................68 *RCL ................................. 69 *RST ................................. 69 *SAV ................................. 69 *SRE ................................ 70 *SRE? ..............................70 *STB? ............................... 71 *TST? ............................... 71 *TRG ................................ 71 Chapter13 Error Messages ....................... 73 Copyright © ITECH Electronic Co., Ltd.

  • Page 10: Chapter1 Remote Control

    "root" at the top. The following figure shows a portion of a subsyste command tree, from which you access the commands located along the various paths. Copyright © ITECH Electronic Co., Ltd.
  • Page 11 VOLTage:TRIGgered 17.5;:INITialize;*TRG OUTPut OFF;*RCL 2;OUTPut 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: Copyright © ITECH Electronic Co., Ltd.

  • Page 12: Message Type Of Scpi

    A response message consists of data in a specific SCPI format sent from the electronic load to the controller. The electronic load sends the message only when commanded by a program message called a "query." The next figure illustrates SCPI message structure: Copyright © ITECH Electronic Co., Ltd.
  • Page 13 An invalid command generates an error and, of course, is not executed. ⚫ Valid commands that precede an invalid command in a multiple command program message are executed. ⚫ Valid commands that follow an invalid command in a multiple command program message are ignored. Copyright © ITECH Electronic Co., Ltd.

  • Page 14: Response Data Type

    If you send more than one query command in the same program message (see the paragraph entitled, “Multiple Command Messages”), the multiple response messages for all the queries is sent to the computer when the IT8500+ Series is addressed to talk. The responses are sent in the order that the query commands were sent and are separated by semicolons (;).
  • Page 15 TRIG:SOUR EXT TRIG:COUNT 10 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 Copyright © ITECH Electronic Co., Ltd.

  • Page 16: Data Type

    Parameter (including M, k, m or u). If the command accepts only some specific values, the instrument will automatically round the input Parameter to acceptable values. The following commands require numerical Parameter of frequency value: [SOURce[1|2]:]FREQuency:CENTer {<Frequency>|MINimum|MAXimum} Copyright © ITECH Electronic Co., Ltd.

  • Page 17: Remote Interface Communication

    IT-E121 and a standard RS232 extension cable to connect the DB9 interface connector of the DC load and the RS-232 interface connector of computer for the communication. Copyright © ITECH Electronic Co., Ltd.
  • Page 18 After connecting the load and computer by USB, you need to install IT-E122 driver (download from http://www.itech.sh/support/Down-3.htm?model=IT-E122%20%E5%85%89%E 9%9A%94%E7%A6%BB%E9%80%9A%E8%AE%AF%E6%8E%A5%E5%8F %A3%E9%A9%B1%E5%8A%A8 or contact ITECH agent). The device manager of PC will display ‘Prolific USB-to-Serial COM Port’ after installing. Copyright © ITECH Electronic Co., Ltd.

  • Page 19: Communication With Pc

    In order for the computer to communicate with the DC load, both must be set to the same RS-232 settings. These communication settings are: 1. Baud rate: 4800,9600,19200 and 38400 are selectable, default setting is Copyright © ITECH Electronic Co., Ltd.
  • Page 20 Please ensure the PC and the load have the same configuration in the following items. Baudrate: 9600(4800, 9600, 19200, 38400). You could enter the system menu to set the baudrate. Data bit: 8 Stop bit: 1 Parity bit: (none, even, odd) Copyright © ITECH Electronic Co., Ltd.
  • Page 21 (download from http://www.itech.sh/support/Down-3.htm?model=IT-E122%20%E5%85%89%E 9%9A%94%E7%A6%BB%E9%80%9A%E8%AE%AF%E6%8E%A5%E5%8F %A3%E9%A9%B1%E5%8A%A8 or contact ITECH agent). The device manager of PC will display ‘Prolific USB-to-Serial COM Port’ after installing. Notes: Only IT8513B+/IT8514B+/IT8514C+/IT8516C+ models have the USB communication interface. After the driver is installed successfully, use USB line to connect in communication.

  • Page 22: Chapter2 Scpi Status Register

    Errors in the range of 299 through 200 can set this bit. Bit5 A syntax or semantic error has occurred or the load received a <get> within a program message. Errors in Copyright © ITECH Electronic Co., Ltd.
  • Page 23 Indicates if the Output Queue contains data. Bit5 Indicates if an enabled standard event has occurred. Bit6 During a serial poll, RQS is returned and cleared. Bit7 OPER Indicates if an operation event has occurred. Copyright © ITECH Electronic Co., Ltd.

  • Page 24: Chapter3 Essential Commands

    YYYY is the year and V is the revision number for that year. Query Syntax SYSTem:VERSion? Parameters None Returned Parameters <NR1>, <SRD> Examples SYSTem:VERS? SYSTem:SENSe[:STATe] <bool> This command is used to control the remote compensation function on and off. Command Syntax SYSTem:SENSe[:STATe] <bool> Copyright © ITECH Electronic Co., Ltd.

  • Page 25: System:sense[:State]

    The command sets the load to remote mode when in RS232 mode. All the buttons except for the LOCAL and Shift buttons will lose function. In the remote state, press LOCAL key return to local mode. Copyright © ITECH Electronic Co., Ltd.

  • Page 26: System:rwlock

    This command can set the load to remote mode, all the button on front panel will lose function including LOCAL button. Use SYSTem:LOCal return to local mode. Command Syntax SYSTem:RWLock Parameters None Examples SYST:RWL Related Commands SYST:REM SYST:LOC Copyright © ITECH Electronic Co., Ltd.

  • Page 27: Chapter4 Status Commands

    Query Syntax STATus:QUEStionable:CONDition? Parameters None Examples STAT:QUES:COND? ReturnedParameters <NR1> Related Commands STAT:OPER:COND? STATus:QUEStionable:ENABle <NRf+> This command is used to set the value of the enable register. Copyright © ITECH Electronic Co., Ltd.

  • Page 28: Status:questionable:enable

    (latches) all value passed by the NTR and, or PTR filter. Read channel operation event register will clear it. Query Syntax STATus:OPERation[:EVENt]? Parameters None Examples STAT:OPER:EVEN? Returned Parameters <NR1> Related Commands *CLS Copyright © ITECH Electronic Co., Ltd.

  • Page 29: Status:operation:condition

    OR of all enabled Operation Event register bits. Command Syntax STATus:OPERation:ENABle <NRf+> Parameters 0 to 65535 Default value Examples STAT:OPER:ENAB 32 Query Syntax STATus:OPERation:ENABle? Returned Parameters <NR1> Related Parameters STAT:OPER? Copyright © ITECH Electronic Co., Ltd.

  • Page 30: Status:operation:enable

    (OPER) of the Status Byte register. The operation summary bit is the logical OR of all enabled Operation Event register bits. Command Syntax STATus:OPERation:ENABle <NR1> Parameters None Default value Copyright © ITECH Electronic Co., Ltd.

  • Page 31: Chapter5 Input Settings

    This command is used to query the input status. Command Syntax [SOURce:]INPut? *RST Value Examples INP? [SOURce:]INPut:SHORt <bool> This command is used to set the status of short circuit function. Command Syntax [SOURce:]INPut:SHORt <bool> Copyright © ITECH Electronic Co., Ltd.

  • Page 32: [Source:]Input:short

    If the value falls in a region where ranges overlap, the load selects the range with the highest resolution. Command Syntax [SOURce:]CURRent:RANGe <NRf+> Parameters MIN ~MAX | MINimum | MAXimum Unit Copyright © ITECH Electronic Co., Ltd.

  • Page 33: [Source:]Current:range

    If the value falls in a region where ranges overlap, the load selects the range with the highest resolution. Command Syntax [SOURce:]VOLTage:RANGe <NRf+> Parameters MIN ~MAX | MINimum | MAXimum Unit *RST Value MAXimum(high range) Copyright © ITECH Electronic Co., Ltd.

  • Page 34: [Source:]Voltage:range

    This command is used to set the auto-range state of the voltage meter of the load module. Command Syntax [SOURce:]VOLTage:RANGe:AUTO[:STATe] <bool> Parameters 0 | 1 | ON | OFF Returned Parameters Examples VOLT:RANG:AUTO 1 Query Syntax [SOURce:]VOLTage:RANGe:AUTO[:STATe]? Returned Parameters <NR1> Copyright © ITECH Electronic Co., Ltd.

  • Page 35: [Source:]Current:slew[:Both]

    Command Syntax [SOURce:]CURRent:SLEW[:BOTH]? Unit A /uS *RST Value MAXimum [SOURce:]CURRent:SLEW:RISE <NRf+> This command sets the slew rate of the current for positive going transitions. Command Syntax [SOURce:]CURRent:SLEW:RISE <NRf+> Copyright © ITECH Electronic Co., Ltd.

  • Page 36: [Source:]Current:slew:rise

    A/uS *RST Value MAXimum [SOURce:]CURRent:SLEW:FALL <NRf+> This command sets the slew rate of the current for negative going transitions. Command Syntax [SOURce:]CURRent:SLEW:FALL <NRf+> Parameters MIN~MAX | MAXimum | MINimum Unit A/uS *RST Value MAXimum Copyright © ITECH Electronic Co., Ltd.

  • Page 37: [Source:]Current:slew:fall

    NOTE: Use CURR:PROT:DEL to prevent momentary current limit conditions caused by programmed changes from tripping the overcurrent protection. Command Syntax [SOURce:]CURRent:PROTection[:LEVel] <NRf+> Parameters MIN ~ MAX | MINimum | MAXimum Unit *RST Value MAXimum Copyright © ITECH Electronic Co., Ltd.

  • Page 38: [Source:]Current:protection[:Level]

    NOTE: Use POW:PROT:DEL to prevent momentary power limit conditions caused by programmed changes from tripping the over power protection. Command Syntax [SOURce:]POWer:PROTection[:LEVel] <NRf+> Parameters MIN ~ MAX | MINimum | MAXimum Unit *RST Value MAXimum(high range) Examples POW:PROT 100 Copyright © ITECH Electronic Co., Ltd.

  • Page 39: [Source:]Power:protection[:Level]

    This command sets the voltage of sink current on. Command Syntax [SOURce:]VOLTage[:LEVel]:ON <NRf+> Parameters None Unit *RST Value Examples VOLT:ON 3 Query Syntax [SOURce:]VOLTage[:LEVel]:ON? Returned Parameters <NR2 [SOURce:]Voltage:[LEVel:]ON? This command is used to query the voltage of sink current on. Copyright © ITECH Electronic Co., Ltd.

  • Page 40: [Source:]Voltage:[Level:]Off

    MIN ~ MAX | MINimum | MAXimum Unit *RST Value Examples VOLT:OFF 2 Query Syntax [SOURce:]VOLTage[:LEVel]:OFF? Returned Parameters <NR2> [SOURce:]Voltage:[LEVel:]OFF? This command is used to query the load start unloading voltage value. Command Syntax [SOURce:]VOLTage[:LEVel]:OFF? Unit *RST Value Copyright © ITECH Electronic Co., Ltd.

  • Page 41: [Source:]Function

    These two commands are equivalent and are used to query the input mode of the load. Command Syntax [SOURce:]FUNCtion? [SOURce:]MODE? Returned Parameters CURRent | VOLTage | POWer | RESistance | DYNamic | LED | IMPedance Copyright © ITECH Electronic Co., Ltd.

  • Page 42: [Source:]Current[:Level][:Immediate][:Amplitude]

    Command Syntax [SOURce:]CURRent[:LEVel][:IMMediate][:AMPLitude] <NRf+> Parameters MIN~MAX|MINimum|MAXimum Unit *RST Value MINimum Examples CURR 5 Query Syntax [SOURce:]CURRent[:LEVel][:IMMediate][:AMPLitude]? Returned Parameters <NR2> [SOURce:]CURRent[:LEVel][:IMMediate][:AMPLitude]? This command is used to query the current setting in CC mode. Command Syntax [SOURce:]CURRent[:LEVel][:IMMediate][:AMPLitude]? Copyright © ITECH Electronic Co., Ltd.

  • Page 43: [Source:]Voltage[:Level][:Immediate][:Amplitude]

    Parameters MIN~MAX|MINimum|MAXimum Unit *RST Value MAXimum Examples VOLT 5 Query Syntax [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude]? Returned Parameters <NR2> [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude]? This command is used to query the voltage setting in CV mode. Command Syntax [SOURce:]VOLTage[:LEVel][:IMMediate][:AMPLitude]? Parameters None Unit Copyright © ITECH Electronic Co., Ltd.

  • Page 44: [Source:]Power[:Level][:Immediate][:Amplitude]

    *RST Value MINimum Examples POW 10 Query Syntax [SOURce:]POWer[:LEVel][:IMMediate][:AMPLitude]? Returned Parameters <NR2> [SOURce:]POWer[:LEVel][:IMMediate][:AMPLitude]? This command is used to query the power setting in CP mode. Command Syntax [SOURce:]POWer[:LEVel][:IMMediate][:AMPLitude]? Parameters None Unit *RST Value MINimum Copyright © ITECH Electronic Co., Ltd.

  • Page 45: [Source:]Resistance[:Level][:Immediate][:Amplitude]

    This command is used to query the resistance setting in CR mode. Command Syntax [SOURce:]RESistance[:LEVel][:IMMediate][:AMPLitude]? Parameters None Unit *RST Value MAXimum [SOURce:]DYNamic:HIGH[:LEVel] <NRf+> This command is used to set the high-level load current in dynamic mode. Copyright © ITECH Electronic Co., Ltd.

  • Page 46: [Source:]Dynamic:high[:Level]

    This command is used to query the high-level load current in dynamic mode. Command Syntax [SOURce:]DYNamic:HIGH[:LEVel]? Parameters None Unit *RST Value Examples DYN:HIGH 10 [SOURce:]DYNamic:HIGH:DWELl <NRf+> This command is used to set the duration of high-level load current in dynamic mode. Command Syntax [SOURce:]DYNamic:HIGH:DWELl <NRf+> Copyright © ITECH Electronic Co., Ltd.

  • Page 47: [Source:]Dynamic:high:dwell

    This command is used to query the duration of high-level load current in dynamic mode. Command Syntax [SOURce:]DYNamic:HIGH:DWELl? Parameters None Unit *RST Value [SOURce:]DYNamic:LOW[:LEVel] <NRf+> This command is used to set the low-level load current in dynamic mode. Command Syntax [SOURce:]DYNamic:LOW[:LEVel] <NRf+> Parameters MIN~MAX|MINimum|MAXimum Unit Copyright © ITECH Electronic Co., Ltd.

  • Page 48: [Source:]Dynamic:low[:Level]

    Parameters None Unit *RST Value [SOURce:]DYNamic:LOW:DWELl <NRf+> This command is used to set the duration of low-level load current in dynamic mode. Command Syntax [SOURce:]DYNamic:LOW:DWELl <NRf+> Parameters MIN~MAX|MINimum|MAXimum Unit *RST Value Examples DYN:LOW:DWEL 1 Copyright © ITECH Electronic Co., Ltd.

  • Page 49: [Source:]Dynamic:low:dwell

    0.00002 [SOURce:]DYNamic:SLEW <NRf+> This command is used to set the current slope in dynamic mode. Command Syntax [SOURce:]DYNamic:SLEW <NRf+> Parameters MIN~MAX|MINimum|MAXimum Unit A/uS *RST Value Examples DYN:SLEW 3 Query Syntax [SOURce:]DYNamic:SLEW? Returned Parameters <NR2> Copyright © ITECH Electronic Co., Ltd.

  • Page 50: [Source:]Dynamic:slew

    [SOURce:]DYNamic:SLEW:RISE <NRf+> Parameters MIN~MAX|MINimum|MAXimum Unit A/uS *RST Value Examples DYN:SLEW:RISE 3 Query Syntax [SOURce:]DYNamic:SLEW:RISE? Returned Parameters <NR2> [SOURce:]DYNamic:SLEW:RISE? This command is used to query the current rising slope in dynamic mode. Command Syntax [SOURce:]DYNamic:SLEW:RISE? Copyright © ITECH Electronic Co., Ltd.

  • Page 51: [Source:]Dynamic:slew:fall

    Unit A/uS *RST Value Examples DYN:SLEW:FALL 3 Query Syntax [SOURce:]DYNamic:SLEW:FALL? Returned Parameters <NR2> [SOURce:]DYNamic:SLEW:FALL? This command is used to query the current falling slope in dynamic mode. Command Syntax [SOURce:]DYNamic:SLEW:FALL? Parameters None Unit A/uS Copyright © ITECH Electronic Co., Ltd.

  • Page 52: [Source:]Dynamic:mode

    CONTinuous|PULSe|TOGGLe *RST Value CONTinuous Examples DYN:MODE PULS Query Syntax [SOURce:]DYNamic:MODE? Returned Parameters <CRD> [SOURce:]DYNamic:MODE? This command is used to query the working mode in dynamic mode. Command Syntax [SOURce:]DYNamic:MODE? Parameters None *RST Value CONTinuous Copyright © ITECH Electronic Co., Ltd.

  • Page 53: Chapter6 Measure Commands

    This command is used to query the peak voltage of the electronic load. Command Syntax MEASure[:SCALar]:VOLTage:MAXimum? Parameters None Examples MEAS:VOLT:MAX? Returned Parameters <NR2> MEASure[:SCALar]:VOLTage:MINimum? This command is used to query the minimum voltage of the electronic load. Command Syntax MEASure[:SCALar]:VOLTage:MINimum? Parameters None Copyright © ITECH Electronic Co., Ltd.

  • Page 54: Measure[:Scalar]:Voltage:ptpeak

    This command is used to query the current average of the electronic load. Command Syntax MEASure [:SCALar]:CURRent[:DC]? Parameters None Examples MEAS:CURR? Returned Parameters <NR2> MEASure[:SCALar]:CURRent:MAXimum? This command is used to query the peak current of the electronic load. Command Syntax MEASure[:SCALar]:CURRent:MAXimum? Parameters None Copyright © ITECH Electronic Co., Ltd.

  • Page 55: Measure[:Scalar]:Current:minimum

    This command is used to query the current peak-to-peak value. Command Syntax MEASure[:SCALar]:CURRent:PTPeak? Parameters None Examples MEAS:CURR:PTP? Returned Parameters <NR2> MEASure[:SCALar]:POWer[:DC]? This command is used to query the power average. Command Syntax MEASure [:SCALar]:POWer[:DC]? Parameters None Copyright © ITECH Electronic Co., Ltd.

  • Page 56: Meas[:Scalar]:Resistance[:Dc]

    Measure Commands Examples MEAS:POWer? Returned Parameters <NR2> MEAS[:SCALar]:RESistance[:DC]? This command is used to query the equivalent impedance. Command Syntax MEAS[:SCALar]:RESistance[:DC]? Parameters None Examples MEAS: RESistance? Returned Parameters <NR2> Copyright © ITECH Electronic Co., Ltd.

  • Page 57: Chapter7 Ocp Testing Commands

    This command is used to query the OCP test status. At the end of OCP test, it returns 0. Command Syntax OCP[:STATe]? Parameters 0|1|OFF|ON OCP:ISTart <NRf+> This command is used to set the start current of the OCP test. Command Syntax OCP:ISTart <NRf+> Parameters MIN~MAX Unit Copyright © ITECH Electronic Co., Ltd.

  • Page 58: Ocp:istart

    This command is used to set the OCP cut-off current. Command Syntax OCP:IEND <NRf+> Parameters MIN~MAX Unit Examples OCP:IEND 6 Query Syntax OCP:IEND? Returned Parameters <NR2> OCP:IEND? This command is used to query the OCP cut-off current. Copyright © ITECH Electronic Co., Ltd.

  • Page 59: Ocp:step

    This command is used to query the current step of OCP test. Command Syntax OCP:STEP? Parameters None OCP:DWELl <NRf+> This command is used to set the single-step dwell time of OCP test. Command Syntax OCP:DWELl <NRf+> Parameters 0.00001~0.99999 Copyright © ITECH Electronic Co., Ltd.

  • Page 60: Ocp:dwel

    Command Syntax OCP:DWELl? Parameters None Unit OCP:VTRig <NRf+> This command is used to set the OCP trigger level. Command Syntax OCP:VTRig <NRf+> Parameters MIN~MAX Unit Examples OCP:VTR 11.8 Query Syntax OCP:VTRig? Returned Parameters <NR2> Copyright © ITECH Electronic Co., Ltd.

  • Page 61: Ocp:vtrig

    Command Syntax OCP:RESult[:OCP]? Returned Parameters <NRf+> Unit Examples OCP:RES? Returned Parameters 4.68 OCP:RESult:PMAX? This command is used to query the PMAX value. Command Syntax OCP:RESult:PMAX? Returned Parameters <NR2>,<NR2>,<NR2> Unit W V A Examples OCP:RES:PMAX? Copyright © ITECH Electronic Co., Ltd.
  • Page 62 OCP Testing Commands Returned Parameters 55.34 11.8 4.69 This example shows that the maximum output power of PMAX is 55.34W, at this moment the voltage is 11.8V, the current is 4.69A. Copyright © ITECH Electronic Co., Ltd.

  • Page 63: Chapter8 Peak Testing Commands

    Examples Peak CLE PEAK:VOLTage:MAXimum? This command is used to query the maximum voltage. Command Syntax PEAK:VOLTage:MAXimum? Examples PEAK:VOLT:MAX? Returned Parameters <NR2> PEAK:VOLTage:MINimum? This command is used to query the minimum voltage. Command Syntax PEAK:VOLTage:MINimum? Copyright © ITECH Electronic Co., Ltd.

  • Page 64: Peak:current:maximum

    This command is used to query the maximum current. Command Syntax PEAK:CURRent:MAXimum? Examples PEAK: CURR:MAX? Returned Parameters <NR2> PEAK: CURRent:MINimum? This command is used to query the minimum current. Command Syntax PEAK: CURRent:MINimum? Examples PEAK:CURR:MIN? Returned Parameters <NR2> Copyright © ITECH Electronic Co., Ltd.

  • Page 65: Chapter9 Voltage Rise/Fall Time Test

    Returned Parameters <NRf> TIME:VOLTage:HIGH <Voltage> This command is used to set the of the load starting drop voltage value when measuring the fall time of voltage output. Command Syntax TIME:VOLTage:HIGH <Voltage> Parameters 0 through MAX|MINimum|MAXimum|DEFault Copyright © ITECH Electronic Co., Ltd.

  • Page 66: Time:voltage:high

    This command is used to read the voltage rise time. Command Syntax TIME:VOLTage:UP? Parameters None Returned Parameters <NRf> TIME:VOLTage:DOWN? This command is used to read the voltage fall time. Command Syntax TIME:VOLTage:DOWN? Parameters None Returned Parameters <NRf> Copyright © ITECH Electronic Co., Ltd.

  • Page 67: Chapter10 Timing Test Commands

    TIMing:LOAD, and after the test is ended, the load input is turned off; if it is set to OFF, the test is started/stopped without changing the load setting. Examples TIM:LOAD:SETT OFF Query Syntax TIMing:LOAD:MODE? Copyright © ITECH Electronic Co., Ltd.

  • Page 68: Timing:load:mode

    A / V / W / Ω, depending on TIMing:LOAD:MODE Examples TIM:LOAD:VAL 1 Query Syntax TIMing:LOAD:VALue? Returned Parameters <NR2> Related Commands If TIM:LOAD:SETT OFF is executed, the setting of this command does not take effect. Copyright © ITECH Electronic Co., Ltd.

  • Page 69: Timing:tstart:source

    <edge> TIMing:TSTart:LEVel This command is used to set the trigger level for the start test. Command Syntax TIMing:TSTart:LEVel <Nrf+> Parameters Depends on the start trigger source, which is the setting of the Timing:TSTart:SOURce command. Copyright © ITECH Electronic Co., Ltd.

  • Page 70: Timing:tend:source

    Query Syntax TIMing:TEND:SOURce? Returned Parameters <source> TIMing:TEND:EDGE This command is used to set the trigger edge of the end test. Command Syntax TIMing:TEND:EDGE <edge> Parameters RISE|FALL Examples TIM:TEND:EDGE RISE Query Syntax TIMing:TEND:EDGE? Returned Parameters <edge> Copyright © ITECH Electronic Co., Ltd.

  • Page 71: Timing:tend:level

    Depends on the end trigger source, which is the setting of the Timing:TEND:SOURce command. Examples TIM:TEND:LEV 1 Query Syntax TIMing:TEND:LEVel? Returned Parameters <NR2> TIMing:RESult This command is used to query Timing test results. Command Syntax TIMing:RESult? Unit Examples TIM:RES? Returned Parameters <NR2> Copyright © ITECH Electronic Co., Ltd.

  • Page 72: Chapter11 Cr-Led Commands

    LED:VOLTage <Nrf+> Parameters 0.001~MAX Examples LED:VOLT 18 Query Syntax LED:VOLT? Returned Parameters <NR2> LED:CURRent This command is used to set LED Io. Command Syntax LED:CURRent <Nrf+> Parameters 0~MAX Examples LED:CURR 0.35 Query Syntax LED:CURR? Copyright © ITECH Electronic Co., Ltd.

  • Page 73: Led:rcoeff

    CR-LED Commands Returned Parameters <NR2> LED:RCOeff This command is used to set LED Rd Coeff.. Command Syntax LED:RCOeff <Nrf+> Parameters 0.001~1 Examples LED:RCO 0.2 Query Syntax LED:RCO? Returned Parameters <NR2> Copyright © ITECH Electronic Co., Ltd.

  • Page 74: Chapter12 Ieee488 Commands

    Standard Event Status registers. The query reads the Standard Event Status Enable register. Command Syntax *ESE <NRf> Parameters 0 to 255 Powe-on Value see *PSC Examples *ESE 129 Query Syntax *ESE? Copyright © ITECH Electronic Co., Ltd.

  • Page 75: Ese

    <NR1> (register value) Related Commands *CLS *ESE *ESE? *OPC *IDN? This query requests the electronic load to identify itself. It returns the data in four fields separated by commos. Query Syntax *IDN? Parameters None Copyright © ITECH Electronic Co., Ltd.

  • Page 76: Opc

    The query causes the interface to place an ASCII "1" in the Output Queue when all pending operations are completed. Command Syntax *OPC Parameters None Query Syntax *OPC? Returned Parameters <NR1> Copyright © ITECH Electronic Co., Ltd.

  • Page 77: Opc

    Command Syntax *PSC <bool> Parameters 0|1|ON|OFF Query Syntax *PSC? Returned Parameters *PSC? This command is used to query the status byte enable register. Command Syntax *PSC? Returned Parameters 0|1|ON|OFF Copyright © ITECH Electronic Co., Ltd.

  • Page 78: Rcl

    0. It then will be recalled at power-on if the power-on state is set to RCL0. Use *RCL to retrieve instrument states. Command Syntax *SAV <NRf> Parameters 0 - 99 Examples *SAV 3 Copyright © ITECH Electronic Co., Ltd.

  • Page 79: Sre

    Query Syntax *SRE? Returned Parameters <NR1> (register binary value) Related Commands *ESE *ESR *PSC *SRE? This command is used to query status byte group enable register. Command Syntax *SRE? Returned Parameters 0 - 255 Copyright © ITECH Electronic Co., Ltd.

  • Page 80: Stb

    TST? Parameters None Returned Parameters <NR1> 0 indicates the electronic load has passed selftest. Non-zero indicates an error code. *TRG This command generates a trigger to any system that has BUS selected as its Copyright © ITECH Electronic Co., Ltd.
  • Page 81 IEEE488 Commands source. Copyright © ITECH Electronic Co., Ltd.

  • Page 82: Chapter13 Error Messages

    Settings conflict [check current device state] –222 Data out of range [e.g., too large for this device] –223 Too much data [out of memory; block, string, or expression too long] –224 Illegal parameter value [device-specific] –225 Out of memory Copyright © ITECH Electronic Co., Ltd.
  • Page 83 CRDAC selftest 2 Input Down Flash write failed Flash erase failed Digital I/O selftest error Device-Dependent Errors 100 through 32767 (sets Standard Event Status Register bit #3) Error Error String RS-232 buffer overrun error Copyright © ITECH Electronic Co., Ltd.
  • Page 84 Computed readback cal constants are incorrect Computed programming cal constants are incorrect Incorrect sequence of calibration commands CV or CC status is incorrect for this command FETCH of data that was not acquired Measurement overrange Copyright © ITECH Electronic Co., Ltd.
  • Page 85 Contact Us Thanks for purchasing ITECH products. In case of any doubts, please contact us as follows: 1. Visit ITECH website: www.itechate.com. 2. Select the most convenient contact method for further information.

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