ITech IT6900 Series Programming Manual
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ITech IT6900 Series Programming Manual

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ООО "Техэнком"
Контрольно-измерительные приборы и оборудование
Programmable DC Power
IT6900 Series Programming Guide
Supply
Model: IT6922A/IT6932A/IT6933A/IT6942A/
IT6952A/IT6953A/IT6922B/
IT6932B/IT6942B/IT6952B/IT6953B
Version: V2.0
www.tehencom.com

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  • Page 1 ООО "Техэнком" Контрольно-измерительные приборы и оборудование www.tehencom.com Programmable DC Power Supply IT6900 Series Programming Guide Model: IT6922A/IT6932A/IT6933A/IT6942A/ IT6952A/IT6953A/IT6922B/ IT6932B/IT6942B/IT6952B/IT6953B Version: 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 This Warranty will be rendered invalid in case of the following: ...

  • Page 4: Safety Precautions

    In case of failure to follow these precautions or specific warnings in other parts of the manual, violation against the safety standards related to the design, manufacture and purpose of the instrument will occur. If the user does not follow these precautions, ITECH will bear no responsibility arising there from. ...

  • Page 5: Environmental Conditions

     Do not block the air vent of the equipment. Environmental Conditions The IT6900 series power supply can only be used indoors or in low condensation areas. The following table shows general environmental requirements for this instrument. Environmental conditions...

  • Page 6: 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 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

    SYSTem:INTerface ..............................19 Chapter4 Display Commands ........................20 DISPlay ..................................20 DISPlay:TEXT < Reference value> ..........................20 DISPlay:TEXT:CLEar ..............................20 Chapter5 Trigger Commands ........................22 TRIGger ..................................22 TRIGger:SOURce ............................... 22 Chapter6 Output Commands ........................23 Copyright ©ITECH Electronic Co., Ltd.
  • Page 9 FETCh:DVM? ................................35 Chapter11 List Commands ..........................37 LIST:FUNCtion ................................37 LIST:STEP ................................37 LIST:VOLTage ................................37 LIST:CURRent ................................38 LIST:TIMEr ................................38 LIST:SAVE .................................. 39 LIST:LOAD ................................. 39 LIST:REPet ................................. 40 Chapter12 IEEE488.2 Commands ........................41 Copyright ©ITECH Electronic Co., Ltd.
  • Page 10 *ESE ..................................41 *ESR? ..................................42 *IDN?..................................42 *OPC ..................................42 *PSC ..................................43 *RST..................................43 *SRE <enabled value> ..............................44 *STB? ..................................44 *TRG ..................................45 *SAV ..................................45 *RCL ..................................46 *TST? ..................................46 Copyright ©ITECH Electronic Co., Ltd. viii...

  • Page 11: Chapter1 Remote Control

    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 you access the commands located along the various paths. Copyright ©ITECH Electronic Co., Ltd.
  • Page 12 The following message shows how to combine commands from different subsystems as well as within the same subsystem: POWer:LEVel 200;PROTection 28; :CURRent:LEVel 3;PROTection:STATe ON Note the use of the optional header LEVel to maintain the correct path Copyright ©ITECH Electronic Co., Ltd.
  • Page 13  Read back all the results of a query before sending another command to the electronic load. Otherwise a Query Interrupted error will occur and the unreturned data will be lost. Copyright ©ITECH Electronic Co., Ltd.

  • Page 14: Command Format

    It is used to separate key words of a command with the key words in next level. As shown below: APPL:SIN 455E3,1.15,0.0 In this example, APPLy command assigns a sine wave with frequency of 455 KHz, amplitude of 1.15 V and DC offset of 0.0 V. Copyright ©ITECH Electronic Co., Ltd.
  • Page 15 IEEE-488 EOI (End or Identify) information can be used as <NL> character to replace termination command string of <NL> character. It is acceptable to place one <NL> after a <Enter>. Termination of command string always resets current SCPI command path to root level. Copyright ©ITECH Electronic Co., Ltd.

  • Page 16: Data Type

    "0" or "1". Boolean Parameter are required by the following commands: DISPlay {OFF|0|ON|1}  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 Copyright ©ITECH Electronic Co., Ltd.

  • Page 17: Remote Operation

    RS-232 interface can be used to program all of the SCPI orders. NOTE The RS232 settings must match the settings in front panel system information. If any I-set I-set change, please press key. Copyright ©ITECH Electronic Co., Ltd.
  • Page 18 Note that even if the cable has the right plug, the internal wiring may be wrong.  Interface cable must be connected to the correct serial port on the computer (COM1, COM2, etc.). Copyright ©ITECH Electronic Co., Ltd.

  • Page 19: Usb Interface

    GPIB address setting by ▼ ▼ Enter Enter button, type the address, key to confirm. GPIB address is stored in nonvolatile memory line. Copyright ©ITECH Electronic Co., Ltd.

  • Page 20: Rs485 Interface

    RS485 can be controlled by one PC by using the commands specific for multi-unit connection. See “Programming Guide” section for details. The figure below is a schematic diagram of the connection of 4 machines. Copyright ©ITECH Electronic Co., Ltd.
  • Page 21 ООО "Техэнком" Контрольно-измерительные приборы и оборудование www.tehencom.com Remote Control Connect PC Copyright ©ITECH Electronic Co., Ltd.

  • Page 22: Chapter2 Scpi Status Register

    Power On. Power has been turned off and on since the last time the event register was read or cleared Query status register provide some information of the power, such as over voltage, over temperature, over current, you can also monitor the Copyright ©ITECH Electronic Co., Ltd.
  • Page 23 One or more bits are set in the standard event register (bits must be “enabled” in the enable register). The power supply is requesting service (serial poll). Not used Always set to 0. The below picture will give you more detailed information: Copyright ©ITECH Electronic Co., Ltd.
  • Page 24 Query Error Device Dependent Error Execution Error Command Error not used Power On *ESR? *ESE<value> *ESE? Operate Event Enable Register Event Register ON/OFF not used not used not used not used not used Copyright ©ITECH Electronic Co., Ltd.

  • Page 25: Chapter3 System Commands

    OFF or uncertain. If 1 is returned, then the status is CV mode, if 2 is returned, then the status is CC. If 3 is returned, then there is error occurred. Quest syntax: STATus:QUEStionable:CONDition? Parameter: None Return parameter: <NR1> Copyright ©ITECH Electronic Co., Ltd.

  • Page 26: Status:questionable:enable

    This order can query the version of the SCPI order. Returned value is a string like “YYYY.V”, In which the YYYY is the year of this version, V is the version. Order syntax: SYST:VERS? Parameter: None Return parameter: <NR2> Example: 1.00, 1991.1 Copyright ©ITECH Electronic Co., Ltd.

  • Page 27: System:error

    Send or receive orders without first sending the order to configure the remote control may cause unpredictable results. Order syntax: SYST:REM Parameter: None Quest syntax: None SYSTem:LOCal This order is used to set the power supply to panel control mode through the Copyright ©ITECH Electronic Co., Ltd.

  • Page 28: System:rwlock

    This order is used to test the beeper, after execute this order, the power supply will issue a beep sound. Order syntax: SYSTem:BEEPer[:IMMediate] Example: SYST:BEEP SYSTem:COMMunicate:GPIB:RDEVice:ADDRess This order is used to set the GPIB communication address. Order Syntax: SYSTem:COMMunicate:GPIB:RDEVice:ADDRess <NR1> Copyright ©ITECH Electronic Co., Ltd.

  • Page 29: System:interface

    ООО "Техэнком" Контрольно-измерительные приборы и оборудование www.tehencom.com System Commands Parameter: 0-30 Quest syntax: SYSTem:COMMunicate:GPIB:RDEVice:ADDRess? Returned parameter: <NR1> SYSTem:INTerface This order is used to switch the communication interface. Order syntax: SYSTem:INTerface <GPIB|USB|RS232> Copyright ©ITECH Electronic Co., Ltd.

  • Page 30: Chapter4 Display Commands

    Order syntax: DISPlay[:WINDow]:TEXT[:DTAT] Quest syntax: DISPlay:TEXT? DISPlay:TEXT:CLEar This order is used to clear the text displayed on the front panel. Copyright ©ITECH Electronic Co., Ltd.
  • Page 31 ООО "Техэнком" Контрольно-измерительные приборы и оборудование www.tehencom.com Display Commands Order syntax: DISPlay[:WINDow]:TEXT:CLEar Copyright ©ITECH Electronic Co., Ltd.

  • Page 32: Chapter5 Trigger Commands

    Trigger button. Or receive a trigger signal by BUS. When you execute order *RST, the trigger mode should be set in MANUAL. Order syntax: TRIG:SOUR <mode> Parameters: BUS|MANUAL Query syntax: TRIGger:SOURce? *RST value: BUS|MANUAL Copyright ©ITECH Electronic Co., Ltd.

  • Page 33: Chapter6 Output Commands

    This order is used to set the state of output timer. Order syntax: OUTPut:TIMer[:STATe] <bool> Parameters: 0|1|OFF|ON Query syntax: OUTPut:TIMer? OUTPut:TIMer:DATA This order is used to set output timer’s time. Order syntax: OUTPut:TIMer:DATA <NRf> Parameters: 0-99999.9 Copyright ©ITECH Electronic Co., Ltd.
  • Page 34 ООО "Техэнком" Контрольно-измерительные приборы и оборудование www.tehencom.com Output Commands Unit: Query syntax: OUTPut:TIMer:DATA? Parameters: <NRf> Copyright ©ITECH Electronic Co., Ltd.

  • Page 35: Chapter7 Current Control Commands

    //set the stepping value to be 0.01A CURR UP //enable the output current increase value one time CURR:STEP 0.02 // set the stepping value to be 0.02A CURR DOWN // enable the output current decrease value one time Copyright ©ITECH Electronic Co., Ltd.

  • Page 36: Current:step

    CURRent. CURR:TRIG? MAX or CURR:TRIG? MIN orders will let you know the max and min current you can set. Order syntax: [SOURce:]CURRent[:LEVel]:TRIGgered[:IMMediate][:INCRement] <NRf> Parameters: MIN to MAX Unit: Query syntax: CURRent:TRIG? [MINimum|MAXimum] Copyright ©ITECH Electronic Co., Ltd.

  • Page 37: [Source:]Current:protection[:Level]

    Query syntax: [SOURce:]CURRent:PROTection[:LEVel]? Return parameters: <NR2> [SOURce:]CURRent:PROTection:STATe This command is used to enable or disable the OCP function, that is, set the overcurrent protection status. Order syntax: [SOURce:]CURRent:PROTection:STATe Parameters: 0|1|OFF|ON Query syntax: [SOURce:]CURRent:PROTection:STATe? Return parameters: Copyright ©ITECH Electronic Co., Ltd.

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

    OCP protection occurs and the upper limit current value of the OCP overcurrent protection will remain at the previously set value. Please note that the external factor causing overcurrent protection should be excluded before sending this command. Order syntax: [SOURce:]CURRent:PROTection:CLEar Copyright ©ITECH Electronic Co., Ltd.

  • Page 39: Chapter8 Voltage Control Commands

    VOLT:STEP 0.01 //set the stepping value to be 0.01V VOLT UP //enable the output voltage increase one time VOLT:STEP 0.02 //set the stepping value to be0.02V VOLT DOWN //enable the output value decrease one time Copyright ©ITECH Electronic Co., Ltd.

  • Page 40: Voltage:step {|Default

    CURRent . CURR:TRIG? MAX or CURR:TRIG? MIN orders will let you know the max and min voltage you can set. Order syntax: [SOURce:]VOLTage[:LEVel]:TRIGgered[:AMPLitude] <NRf> Parameters: MIN to MAX Unit: Query syntax: VOLT:TRIG? [MINimum|MAXimum] Copyright ©ITECH Electronic Co., Ltd.

  • Page 41: Volt:protection {|Minimum|Maximum

    VOLT:PROT? { MINimum|MAXimum} Return parameters: <NR2> VOLT:PROTection:STATe {0|1|OFF|ON} This order is used to open or close OVP function i.e. to set the state of OVP. Order syntax: [SOURce:]VOLTage:PROTection:STATe Parameters: 0|1|OFF|ON Query syntax: VOLTage:PROTection:STATe? Return parameters: Copyright ©ITECH Electronic Co., Ltd.

  • Page 42: Volt:protection:triped

    Order syntax: [SOURce:]VOLTage:PROTection:CLEar VOLT:LIMIT <volts> This order is used to set the upper limit of the output voltage. Order syntax: [SOURce:]VOLTage:LIMIT[:LEVel] <NRf> Parameters: MIN to MAX Unit: Query syntax: VOLTage:LIMIT? Return parameters: <NR2> Copyright ©ITECH Electronic Co., Ltd.

  • Page 43: Chapter9 Control Commands

    PC, and the related operations of the power supply can be performed on the PC. Order syntax: ADDR <NR1> Parameters: 0 to 30 Copyright ©ITECH Electronic Co., Ltd.

  • Page 44: Chapter10 Measurement Commands

    Order syntax: FETCh:CURRent[:DC]? Return parameters: <NR2> MEASure[:VOLTage]? This order can inquire the current output voltage value. Order syntax: MEASure[:SCALar][:VOLTage][:DC]? Return parameters: <NR2> FETCh[:VOLTage]? This order is used to read the latest preprocessed voltages from sampling buffer. Copyright ©ITECH Electronic Co., Ltd.

  • Page 45: Measure:power

    This order is used read the latest measured value of DVM meter and return this value. Order syntax: MEASure[:SCALar]:DVM[:DC]? Return parameters: <NR2> FETCh:DVM? This order is used to read the latest data of DVM meter from the sampling buffer. Order syntax: FETCh:DVM[:DC]? Copyright ©ITECH Electronic Co., Ltd.
  • Page 46 ООО "Техэнком" Контрольно-измерительные приборы и оборудование www.tehencom.com Measurement Commands Return parameters: <NR2> Copyright ©ITECH Electronic Co., Ltd.

  • Page 47: Chapter11 List Commands

    This command is used to set the total number of steps (1~100) of the List. Order syntax: LIST:STEP <NR1> Query syntax: LIST:STEP? Return parameters: LIST:VOLTage This order is used to set the steps of list file and voltage of current step. Order syntax: [SOURce:]LIST:VOLTage <NRf> Parameters: MIN~MAX Unit: Copyright ©ITECH Electronic Co., Ltd.

  • Page 48: List:current

    Return parameters: <NR2> LIST:TIMEr This order is used to set the steps of list file and delay time of current step. This order is used to set delay time of every steps. Order syntax: [SOURce:]LIST:TIMEr Copyright ©ITECH Electronic Co., Ltd.

  • Page 49: List:save

    //save the edited list file to the first set of memory region. LIST:LOAD This order can recall the list file saved before from specified memory region. Sending query orders can inquire which group file you have recalled. Order syntax: [SOURce:]LIST:LOAD[:IMMediate] <NR1> Parameters: Example: LIST:LOAD 1 Copyright ©ITECH Electronic Co., Ltd.

  • Page 50: List:repet

    ООО "Техэнком" Контрольно-измерительные приборы и оборудование www.tehencom.com List Commands Query syntax: LIST:LOAD[:IMMediate]? LIST:REPet This order can set the repeat count of LIST steps. Order syntax: [SOURce:]LIST:REPet <NR1> Query syntax: LIST:REPet? Copyright ©ITECH Electronic Co., Ltd.

  • Page 51: Chapter12 Ieee488.2 Commands

    ESB of status byte register is 1. Order syntax: *ESE <NR1> Parameter: 0~255 Reset value: Consult *PSC order Example: *ESE 128 Quest syntax: *ESE? Return parameter: <NR1> Reference order: *ESR? *PSC *STB? Copyright ©ITECH Electronic Co., Ltd.

  • Page 52: Esr

    None Return parameter: <AARD> For example: ITECH Ltd, IT6922A, 0123456789AF, 1.00 *OPC When all orders before this order are executed, OPC is 1 for the standard event status register. Sending query order will return 1 to output buffer. Order syntax: *OPC Copyright ©ITECH Electronic Co., Ltd.

  • Page 53: Psc

    Reference order: *ESE *SRE STAT:OPER:ENAB STAT:QUES:ENAB *RST This order reset the power supply to default setting. CURR CURR:STEP CURR:TRIG CURR:PROT DISP ON OUTP OFF TRIG:SOUR BUS VOLT 0V VOLT:STEP VOLT:TRIG VOLT:PROT VOLT:PROT:STAT Order syntax: *RST Copyright ©ITECH Electronic Co., Ltd.

  • Page 54: Sre

    6 value of status byte register is cleared, while the status bit will not be cleared when system statistics implemented. Quest syntax: *STB? Parameter: None Copyright ©ITECH Electronic Co., Ltd.

  • Page 55: Trg

    This order can save the parameters of power supply to register. These parameter contains: CURR CURR:STEP CURR:TRIG CURR:PROT DISP OUTP TRIG:SOUR VOLT VOLT:STEP VOLT:TRIG VOLT:PROT VOLT:PROT:STAT Order syntax: *SAV<NRf> Parameter: 1~72 Example: *SAV 3 Reference order: *RCL Copyright ©ITECH Electronic Co., Ltd.

  • Page 56: Rcl

    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 addition, in case of failure, an error information will be generated to describe failure reason. Query syntax: *TST? Parameters: None Returns: <NR1> Copyright ©ITECH Electronic Co., Ltd.
  • Page 57 ООО "Техэнком" Контрольно-измерительные приборы и оборудование www.tehencom.com 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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