ITech IT8800 Series Programming Manual
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ITech IT8800 Series Programming Manual

Programmable dc electronic load
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Programmable DC Electronic
Load
Series IT8800 Programming Guide
Model: IT8811/IT8812/IT8812B/IT8812C
IT8813/IT8813B/IT8813C/IT8814/IT8814B/
IT8814C/IT8816/IT8816B/IT8816C/IT8817/
IT8817B/IT8817C/IT8818/IT8818B/IT8818C/
IT8818D/IT8830/IT8830B/IT8830H/IT8831/
IT8831B/IT8831H/IT8832/IT8832B/IT8832H/
IT8833/IT8833B/IT8833H/IT8834B/IT8834H/
IT8835B/IT8835H/IT8836B/IT8836H/IT8837B/
IT8837H/IT8838B/IT8838H/IT8839B/IT8839H
Revision: V2.0

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  • Page 1 Programmable DC Electronic Load Series IT8800 Programming Guide Model: IT8811/IT8812/IT8812B/IT8812C IT8813/IT8813B/IT8813C/IT8814/IT8814B/ IT8814C/IT8816/IT8816B/IT8816C/IT8817/ IT8817B/IT8817C/IT8818/IT8818B/IT8818C/ IT8818D/IT8830/IT8830B/IT8830H/IT8831/ IT8831B/IT8831H/IT8832/IT8832B/IT8832H/ IT8833/IT8833B/IT8833H/IT8834B/IT8834H/ IT8835B/IT8835H/IT8836B/IT8836H/IT8837B/ IT8837H/IT8838B/IT8838H/IT8839B/IT8839H Revision: V2.0...
  • Page 2 (including electronic storage and “Caution” signs indicate danger. It is extent of laws, ITECH is not committed retrieval or translation into a foreign 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

     Do not block the air vent of the equipment. Environmental conditions The IT8800 series electronic load can only be used indoors or in low condensation areas. The following table shows general environmental requirements for this instrument. Environmental conditions...

  • Page 5: Waste Electrical And Electronic Equipment (Weee) Directive

    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

    STATus:QUEStionable:PTRansition ........................25 STATus:QUEStionable:NTRansition ........................26 STATus:QUEStionable:CONDition? ........................26 STATus:OPERation? .............................. 26 STATus:OPERation:ENABle ..........................26 STATus:OPERation:CONDition? ........................... 27 STATus:PRESet ..............................27 Chapter5 System Commands ........................28 SYSTem:PRESet ..............................28 SYSTem:POSetup ..............................28 SYSTem:VERSion? ..............................28 Copyright © ITECH Electronic Co., Ltd.
  • Page 8 [SOURce:]FUNCtion .............................. 43 [SOURce:]FUNCtion:MODE ..........................43 [SOURce:]TRANsient ............................. 43 [SOURce:]PROTection:CLEar ..........................44 [SOURce:]CURRent ............................... 44 [SOURce:]CURRent:RANGe ..........................44 [SOURce:]CURRent:SLEW ........................... 45 [SOURce:]CURRent:SLEW:POSitive ........................45 [SOURce:]CURRent:SLEW:NEGative ........................45 [SOURce:]CURRent:SLEWrate:STATe ......................... 46 [SOURce:]CURRent:PROTection:STATe......................46 [SOURce:]CURRent:PROTection .......................... 46 Copyright © ITECH Electronic Co., Ltd.
  • Page 9 [SOURce:]LIST:SAV ............................. 58 [SOURce:]LIST:RCL .............................. 58 Chapter11 Sense Subsystem ..........................59 SENSe:AVERage:COUNt ............................59 SENSe:TIME:VOLTage1 ............................59 SENSe:TIME:VOLTage2 ............................59 SYSTem:SENSe[:STATe] <BOOL> ........................59 Chapter12 Calibration Commands ......................... 61 CALibrate:SECure[:STATe] ........................... 61 CALibrate:INITial ..............................61 Copyright © ITECH Electronic Co., Ltd.
  • Page 10 IT8800 Programming Guide CALibrate:SAVe ..............................61 CALibrate:CURRent:POINt ............................ 61 CALibrate:CURRent[:LEVel] ..........................62 CALibrate:CURRent:METEr:POINt ........................62 CALibrate:CURRent:METEr[:LEVel] ........................62 CALibrate:VOLTage:POINt ........................... 62 CALibrate:VOLTage[:LEVel] ..........................63 CALibrate:VOLTage:METEr:POINt ........................63 CALibrate:VOLTage:METEr[:LEVel] ........................63 Chapter13 Error Information ......................... 64 Copyright © ITECH Electronic Co., Ltd. viii...

  • Page 11: 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 12 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 13: Command Format

    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 Copyright © ITECH Electronic Co., Ltd.
  • Page 14 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] to separate Parameter with key words of commands. Generic commands (*) Execute functions like reset, self inspection and status operation. Generic Copyright © ITECH Electronic Co., Ltd.

  • Page 15: Data Type

    ASCII string Parameter String Parameter may actually include all ASCII character sets. Character strings must start and end with paired quotation marks; and single quotation marks or double quotation marks are both allowed. Quotation mark separators Copyright © ITECH Electronic Co., Ltd.

  • Page 16: 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 IT8800 Series is addressed to talk. The responses are sent in the order that the query commands were sent and are separated by semicolons (;).

  • Page 17: Message Type Of Scpi

    2. Address the IT8800 Series to talk. Rule 2.The complete response message must be received by the computer before another program message can be sent to the IT8800 Series. 1.7 Message Type of SCPI There are two types of SCPI messages, program and response.

  • Page 18: Scpi Command Complete

    Since your program can read this status bit on an interrupt basis, *OPC allows subsequent commands to be executed. Note The trigger system must be in the Idle state in order for the status OPC bit to be true. Copyright © ITECH Electronic Co., Ltd.

  • Page 19: Remote Operation

    The following statement shows how to send a device clear over the GPIB interface using the GPIB command library for C or QuickBASIC. IOCLEAR (705) 1.9 Remote Operation IT8800 series electronic load is provided with three communication interfaces to communicate with a computer for selection, including RS232, USB, and GPIB. GPIB function All electronic load functions except setting the communication parameters are programmable over the GPIB.
  • Page 20 For each case, the electronic load will send a maximum of five characters after hold-off is asserted by the controller. The electronic load is capable of receiving as many as fifteen additional characters after it asserts hold-off.Flow control options are stored in the non-volatile memory. Copyright © ITECH Electronic Co., Ltd.

  • Page 21: Queue

    The device understands all mandatory SCPI commands.  The device is SR1 capable  The device is RL1 capable  The device is DT1 capable 1.10 Queue The IT8800 Series uses two queues, which are first-in, first-out (FIFO) Copyright © ITECH Electronic Co., Ltd.

  • Page 22: Status Byte And Service Request (Srq)

    Output Queue - used to hold reading and response messages  Error Queue - used to hold error and status messages The IT8800 Series status model shows how the two queues are structured with the other registers. Output queue The output queue holds data that are related to the normal operation of the instrument.

  • Page 23: Serial Poll And Srq

    Trigger Model Operation Once the instrument is taken out of idle state, operation proceeds through the trigger model down to the device action. A control source is used to hold up operation until the programmed event Copyright © ITECH Electronic Co., Ltd.
  • Page 24 EXTernal: event detection is ended when an input trigger via the TRIGGER LINK connector is received by the electronic load.  BUS: event detection is ended when a bus trigger (GET or *TRG) is received by the electronic load. Copyright © ITECH Electronic Co., Ltd.

  • Page 25: Chapter2 Scpi Register

    Both bits remain set until the condition is removed and PROT:CLE is programmed. Protection Shutdown: The protection shutdown circuit has tripped because of an Over-current, over-power, or over-temperature condition. The bit remains set until PROT:CLE is programmed. Copyright © ITECH Electronic Co., Ltd.
  • Page 26 Request Service: During a serial poll, RQS is returned and cleared. Master Status Summary: For an *STB? query, MSS is returned without being cleared. OPER Operation Status Summary: Indicates if an operation event has occurred. Copyright © ITECH Electronic Co., Ltd.

  • Page 27: Condition Register

    ANDed with the bits of the corresponding enable register and applied to an OR gate. The output of the OR gate is applied to the status byte register.Send the *ESR? command to read the standard event register.All other Copyright © ITECH Electronic Co., Ltd.

  • Page 28: Enable Register

    Circulationpower: Clear all the enable register.  STATus:PREset clears the following enable registers.  Operation event enable register  Questionable event enable register  Channel overview Event enable register  *ESE 0 clears the standard event status enable register. Copyright © ITECH Electronic Co., Ltd.

  • Page 29: Chapter3 Ieee488.2 Commands

    Read Status Byte Register *TRG Trigger Command Send a trigger to Load. *TST? Self-test query Performs a self-test and returns the result. *WAI Wait to continue command Wait until all previous commands are executed. Copyright © ITECH Electronic Co., Ltd.

  • Page 30: Cls - Clear Status

    *ESR? Parameters None Returned Parameters <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 comma. Copyright © ITECH Electronic Co., Ltd.

  • Page 31: Opc

    Command Syntax *PSC <bool> Parameters 0|1|ON|OFF Query Syntax *PSC? Returned Parameters Copyright © ITECH Electronic Co., Ltd.

  • Page 32: Rcl

    Request for Service (RQS) summary bit. A 1 in any Service Request Enable Register bit position enables the corresponding Status Byte Register bit and all such enabled bits then are logically OR to cause Bit 6 of the Status Byte Register to be set. Copyright © ITECH Electronic Co., Ltd.

  • Page 33: Stb

    This command causes the electronic load to do a self-test and report any error. Command Syntax TST? Parameters None Returned Parameters <NR1> 0 indicates the electronic load has passed selftest. Non-zero indicates an error code(see appendix C） Copyright © ITECH Electronic Co., Ltd.

  • Page 34: Wai

    All triggered actions are completed and the trigger system returns to the Idle state. *WAI can be aborted only by sending the electronic load a GPIB DCL (Device Clear) command. Command Syntax WAI? Parameters None Related Commands *OPC Copyright © ITECH Electronic Co., Ltd.

  • Page 35: Chapter4 Essential Commands

    1, then the corresponding bit of the quest event register is 1. Command Syntax STATus:QUEStionable:PTRansition <NR1> Parameters 0 to 65535 Default value Examples STAT:QUES:PTRansition 32 STAT:QUES: PTRansition 1 Query Syntax STATus:QUEStionable:PTRansition? Returned Parameters <NR1> (register value) Related Commands STAT:QUES? Copyright © ITECH Electronic Co., Ltd.

  • Page 36: Status:questionable:ntransition

    Event register to set the operation summary bit (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 0 to 255 Default value Examples STAT:OPER:ENAB 32 STAT:OPER:ENAB 1 Copyright © ITECH Electronic Co., Ltd.

  • Page 37: Status:operation:condition

    All the bits of below register will be cleared：  Quest event enable register  Operation event enable register Note that the register not list above will not be affected by the command. Command Syntax STATus:PRESet Parameters None Examples STAT:PRES Copyright © ITECH Electronic Co., Ltd.

  • Page 38: Chapter5 System Commands

    After reading all the errors, the query Returned "0, No Error". If the error accumulates too much that is more than the cache can bear, the last error of the sequence will be "-350, Too Many Errors". Query Syntax SYSTem:ERRor? Parameters None Copyright © ITECH Electronic Co., Ltd.

  • Page 39: System:clear

    LOCAL button. Use local mode. Command Syntax SYSTem:RWLock Parameters None Examples SYST:RWL Related Commands SYST:REM SYST:LOC SYSTem:KEY This command is used to simulate the key pressing. Command Syntax SYSTem:KEY <NR1> Parameters 0 to 255 Copyright © ITECH Electronic Co., Ltd.

  • Page 40: Display[:Window]:Mode

    <CRD> Related Commands DISP:TEXT DISPlay[:WINDow]:TEXT When VFD is in TEXT display mode, this command is used to display the string already set. Command Syntax DISPlay[:WINDow]:TEXT <NR1>, <SRD> DISP:TEXT 0, “HELLO!” Examples Related Commands DISP:MODE Copyright © ITECH Electronic Co., Ltd.

  • Page 41: Chapter6 Measure Commands

    This command returns the last measured input minimum voltage stored in the communications buffer of the electronic load. A new measurement is not initiated by this command. Measurement Group FETCh:VOLTage:MIN? Syntax <NR2> is the measured input minimum voltage in volts. Returns Copyright © ITECH Electronic Co., Ltd.

  • Page 42: Fetch:current[:Dc]

    This command returns the last measured input minimum current stored in the communications buffer of the electronic load. A new measurement is not initiated by this command. Measurement Group FETCh:CURRent:MIN? Syntax <NR2> is the measured input minimum current in Returns amperes. Copyright © ITECH Electronic Co., Ltd.

  • Page 43: Fetch:power[:Dc]

    A new measurement is not initiated by this command. Measurement Group FETch: TIME Syntax <NR2> is the measured discharging time in second. Returns FETC:TIME? might return 5.1, which would be the Example measured discharging time of the electronic load in second. Copyright © ITECH Electronic Co., Ltd.

  • Page 44: Measure:voltage[:Dc]

    1.0011, which would Example be the measured minimum voltage across the electronic load inputs in volts. MEASure:CURRent[:DC]? This command initiates and executes a new current measurement, and returns the measured input current of the electronic load. Copyright © ITECH Electronic Co., Ltd.

  • Page 45: Measure:current:max

    MEASure:POWer[:DC]? This command initiates and executes a new power measurement, and returns the measured input power of the electronic load. Measurement Group MEASure:POWer[:DC]? Syntax Copyright © ITECH Electronic Co., Ltd.

  • Page 46: Measure:capability

    Measurement Group MEASure:TIME? Syntax <NR2> is the measured discharging time in second. Returns MEAS:TIME? might return 5.1, which would be the Example measured discharging time of the electronic load in second. Copyright © ITECH Electronic Co., Ltd.

  • Page 47: Chapter7 Trigger Subsystem

    Command Syntax TRIGger:TIMer <NRf+> Parameters 0.01 to 999.99s | MINimum | MAXimum | DEFault seconds Units *RST value 0.01 Example TRIG:TIM 0.25 TRIG:TIM MAX Query Syntax TRIGger:TIMer? [ MINimum | MAXimum | Copyright © ITECH Electronic Co., Ltd.
  • Page 48 Trigger Subsystem DEFault ] Returned Parameter <NR3> Relataed Commands ABOR TRIG TRIG:SOUR TRIG:DEL Copyright © ITECH Electronic Co., Ltd.

  • Page 49: Chapter8 Trace Subsystem

    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 *RST Value Examples TRAC:FEED VOLT Query Syntax TRACe:FEED? Copyright © ITECH Electronic Co., Ltd.

  • Page 50: Trace:feed:control

    Returned Parameters <NR3> TRACe:TIMer This command is used to select the interval of the cache. Command Syntax TRACe:TIMer <NRf> Parameters 0.00002 to 3600s | MINimum | MAXimum | DEFault UNIT S (second) *RST Value Copyright © ITECH Electronic Co., Ltd.
  • Page 51 Trace Subsystem Examples TRAC:TIM 0.1 Query Syntax TRACe:TIMer? [MINimum | MAXimum | DEFault] Returned Parameters <NR3> Copyright © ITECH Electronic Co., Ltd.

  • Page 52: Chapter9 Source Subsystem

    0 | 1 Related Commands INP:TIM:DEL [SOURce:]INPut:TIMer:DELay This command specifies the load on timer. Command Syntax [SOURce:]INPut:TIMer <NRf+> Parameters 1 to 60000s | MINimum | MAXimum | DEFault Unit seconds *RST Value Examples INP:TIM:DEL 5 Copyright © ITECH Electronic Co., Ltd.

  • Page 53: [Source:]Remote:sense

    FUNC:MODE FIX Query Syntax [SOURce:]FUNCtion:MODE? Returned Parameters <CRD> Related Commands FUNC [SOURce:]TRANsient This command turns the transient generator on or off. Command Syntax [SOURce:]TRANsient[:STATe] <bool> Parameters 0 | 1 | OFF | ON *RST Value Copyright © ITECH Electronic Co., Ltd.

  • Page 54: [Source:]Protection:clear

    If the existing settings are outside the new range: The levels are set to the maximum value of the new range. Command Syntax [SOURce:]CURRent:RANGe <NRf+> Parameters 0 through MAX | MINimum | MAXimum | DEFault Unit A (amperes) Copyright © ITECH Electronic Co., Ltd.

  • Page 55: [Source:]Current:slew

    MINimum to MAXimum | MAXimum | MINimum | DEFault Unit A (amps per micro second) *RST Value MAXimum Examples CURR:SLEW:NEG MAX Query Syntax [SOURce:]CURRent:SLEW:NEGative? [ MINimum | MAXimum | DEFault ] Returned Parameters <NR3> Related Commands CURR:SLEW Copyright © ITECH Electronic Co., Ltd.

  • Page 56: [Source:]Current:slewrate:state

    Command Syntax [SOURce:]CURRent:PROTection:DELay <NRf+> Parameters 0 to 60 seconds | MINimum | MAXimum | DEFault Unit seconds *RST Value Examples CURR:PROT:DEL 5 Query Syntax [SOURce:]CURRent:PROTection:DELay? [ MINimum | MAXimum | DEFault ] Copyright © ITECH Electronic Co., Ltd.

  • Page 57: [Source:]Current:transient:mode

    <NR3> Related Commands CURR [SOURce:]CURRent:TRANsient:AWIDth [SOURce:]CURRent:TRANsient:BWIDth This command specifies the transient pulse width of the input current. Command Syntax [SOURce:]CURRent:TRANsient:AWIDth <NRf+> [SOURce:]CURRent:TRANsient:BWIDth <NRf+> Parameters 20 to 3600 us Unit S (second) *RST Value 500uS Copyright © ITECH Electronic Co., Ltd.

  • Page 58: [Source:]Current:high

    This command sets the voltage range of the electronic load module. There are only one voltage ranges. Command Syntax [SOURce:]VOLTage:RANGe <NRf+> Parameters MINimum through MAX | MINimum | MAXimum | DEFault Unit V (volts) *RST Value MAXimum Copyright © ITECH Electronic Co., Ltd.

  • Page 59: [Source:]Voltage:range:auto[:State]

    The transient generator puts out a continuous pulse stream after receipt of a trigger signal. PULSe The transient generator puts out a single pulse upon receipt of a trigger. TOGGle The transient generator toggles between two levels upon receipt of a trigger. Copyright © ITECH Electronic Co., Ltd.

  • Page 60: [Source:]Voltage:transient:alevel

    *RST Value 1000uS Examples VOLT:TRAN:AWID 0.001 VOLT:TRAN:BLEV 0.02 Query Syntax [SOURce:] VOLTage:TRANsient:AWIDth? [ MINimum | MAXimum | DEFault ] [SOURce:] VOLTage:TRANsient:BWIDth? [ MINimum | MAXimum | DEFault ] Returned Parameters <NR3> Related Commands VOLT Copyright © ITECH Electronic Co., Ltd.

  • Page 61: [Source:]Voltage:high

    RES:RANG 15 SOUR:RES:RANGE MIN Query Syntax [SOURce:]RESistance:RANGe? [ MINimum | MAXimum | DEFault ] Returned Parameters <NR3> [SOURce:]RESistance:TRANsient:MODE This command selects the operating mode of the transient generator as follows in constant resistance mode. Copyright © ITECH Electronic Co., Ltd.

  • Page 62: [Source:]Resistance:transient:alevel

    S (second) *RST Value 1000uS Examples RES:TRAN:AWID 0.001 RES:TRAN:BLEV 0.02 Query Syntax [SOURce:] RESistance:TRANsient:AWIDth? [ MINimum | MAXimum | DEFault ] [SOURce:] RESistance:TRANsient:BWIDth? [ MINimum | MAXimum | DEFault ] Returned Parameters <NR3> Related Commands Copyright © ITECH Electronic Co., Ltd.

  • Page 63: [Source:]Resistance:high

    *RST Value Examples VOLT:LATC 1 Query Syntax [SOURce:]VOLTage:LED[:STATe]? Returned Parameters 0 | 1 Related Commands VOLT:ON [SOURce:]POWer This command sets the power of the load when operating in constant power mode. Command Syntax [SOURce:]POWer[:LEVel][:IMMediate] <NRf+> Copyright © ITECH Electronic Co., Ltd.

  • Page 64: [Source:]Power:range

    This command specifies the transient level of the input power. The transient function switches between the level a and level b. Command Syntax [SOURce:] POWer:TRANsient:ALEVel <NRf+> [SOURce:] POWer:TRANsient:BLEVel <NRf+> Parameters 0 through MAX | MINimum | MAXimum | DEFault Unit W (power) Copyright © ITECH Electronic Co., Ltd.

  • Page 65: [Source:]Power:transient:awidth

    [MINimum|MAXimum|DEFault ] Returned Parameters <NR3> [SOURce:]POWer:PROTection This command sets the soft power protection level. If the input power exceeds the soft power protection level for the time specified by POW:PROT:DEL, the input is turned off. Copyright © ITECH Electronic Co., Ltd.

  • Page 66: [Source:]Power:protection:delay

    0 through MAX | MINimum | MAXimum | DEFault Unit W (power) *RST Value MAXimum Examples POW:CONFig 100 Query Syntax [SOURce:]POWer:CONFig[:LEVel]? [ MINimum | MAXimum | DEFault ] Returned Parameters <NR3> Related Commands POW:PROT Copyright © ITECH Electronic Co., Ltd.

  • Page 67: Chapter10 List Commands

    This command specifies the setting for each list step. Command Syntax [SOURce:]LIST:LEVel <NR1>, <NRf> Parameters 1 to steps, MIN to MAX Unit NONE, NONE Examples LIST:LEV 1, 10 LIST:LEV 2, 15.2 Query Syntax [SOURce:]LIST:LEVel? <NR1> Returned Parameters <NR3> Copyright © ITECH Electronic Co., Ltd.

  • Page 68: [Source:]List:slew

    This command restores a list file that was previously stored in memory with a LIST:SAV command to the specified location. Command Syntax [SOURce:]LIST:RCL <NR1> Parameters 1 to 7 Example LIST:RCL 3 Related Commands [SOURce:]LIST:SAV Copyright © ITECH Electronic Co., Ltd.

  • Page 69: Chapter11 Sense Subsystem

    MINimum / MAXimum Examples VOLT:TIME:VOLT1 5 Query Syntax [SOURce:]SENSe:TIME:VOLTage? [ MINimum | MAXimum | DEFault ] Returned Parameters <NR3> Related Commands FETC:TIME? SYSTem:SENSe[:STATe] <BOOL> This command enables or disables remote sense measurement functions. Sense Group Copyright © ITECH Electronic Co., Ltd.
  • Page 70 Sense Subsystem SYSTem:SENSe[:STATe] <BOOL> Syntax SYSTem:SENSe[:STATe]? 0 | 1 | OFF | ON Arguments Returns SYSTem:SENSe 1 Example Copyright © ITECH Electronic Co., Ltd.

  • Page 71: Chapter12 Calibration Commands

    Command Syntax CALibrate:SAVE Parameters None Examples CAL:SAVE Related Commands CAL:STAT CAL:INIT CALibrate:CURRent:POINt This command is used to set the calibration point in CC mode, only effective in Copyright © ITECH Electronic Co., Ltd.

  • Page 72: Calibrate:current[:Level]

    CV mode.P1, P2 are used in low voltage range,P3,P4 are used in high voltage range. Only be used to calibrate voltage source and voltmeter. Command Syntax CALibrate:VOLTage:POINt <point> Parameters P1 | P2 | P3 | P4 Examples CAL:VOLT:POIN P2 Related Commands CAL:STAT CAL:SAV Copyright © ITECH Electronic Co., Ltd.

  • Page 73: Calibrate:voltage[:Level]

    CALibrate:VOLTage:POINt).All these constant do not exist in the nonvolatile memory unless you have send the command CALibrate:SAVE to save them. Command Syntax CALibrate:VOLTage:METEr[:LEVel] <NRf> Parameters <external reading> Unit V (volts) Examples CAL:CURR 3.2223 Related Commands CAL:STAT CAL:SAV Copyright © ITECH Electronic Co., Ltd.

  • Page 74: Chapter13 Error Information

    (-221) 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] Copyright © ITECH Electronic Co., Ltd.
  • Page 75 Equipment related errors from 100 to 32767 (Set bit 3 of standard event register) are explained as follows. RS-232 buffer overrun error RS-232 receiver framing error RS-232 receiver parity error RS-232 receiver overrun error Copyright © ITECH Electronic Co., Ltd.
  • Page 76 Lists inconsistent [lists have different list lengths] Too many sweep points Command only applies to RS-232 interface FETCH of data that was not acquired Measurement overrange Command not allowed while list initiated Corrupt update data Not Updating Copyright © ITECH Electronic Co., Ltd.
  • Page 77 Contact Us Thanks for purchasing ITECH products. In case of any doubts, please contact us as follows: 1. Refer to accompanying data disk and relevant manual. 2. Visit ITECH website: www.itechate.com. 3. Select the most convenient contact method for further information.

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