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ITech IT8800 Series Скачать руководство пользователя страница 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

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Содержание IT8800 Series

Страница 1: ...13B 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 ...

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

Страница 3: ...es Limitation of Warranty Warranty service does not apply to the damage caused in the following circumstances Damage resulting from customer wired circuits or customer supplied parts or accessories Product which has been modified or repaired by the customer Damage caused by the circuit installed by the customer or damage caused by operation of the product in non specified environment The product m...

Страница 4: ...tric shock To prevent burnout please pay special attention to positive and negative polarities of electronic load during connection Do not use damaged equipment Please check the housing before using the equipment Check whether the instrument is subject to cracking or is lack of plastic Do not operate the instrument in the environment with explosive gas steam or dust Observe all tags on the equipme...

Страница 5: ...o danger will happen or toxic substances will not leak or cause damage in normal use within the specified period The service life of the product is 10 years The product can be used safely within the environmental protection period otherwise the product should be put into the recycling system Waste electrical and electronic equipment WEEE directive Waste electrical and electronic equipment WEEE dir...

Страница 6: ...0 4 2 2008 EN 61000 4 2 2009 IEC 61000 4 3 2006 A1 2007 A2 2010 EN 61000 4 3 2006 A1 2008 A2 2010 IEC 61000 4 4 2004 A1 2010 EN 61000 4 4 2004 A1 2010 IEC 61000 4 5 2005 EN 61000 4 5 2006 IEC 61000 4 6 2008 EN 61000 4 6 2009 IEC 61000 4 11 2004 EN 61000 4 11 2004 1 The product is intended for use in non residential non domestic environments Use of the product in residential domestic environments m...

Страница 7: ... 1 10 Queue 11 1 11 Status byte and service request SRQ 12 1 12 Serial poll and SRQ 13 1 13 Trigger Model GPIB Operation 13 Chapter2 SCPI Register 15 2 1 Status Register 15 2 2 Condition register 17 2 3 Event register 17 2 4 Enable register 18 Chapter3 IEEE488 2 Commands 19 CLS Clear Status 20 ESE NRf Event Enable 20 ESR 20 IDN 20 OPC 21 PSC 21 RCL 22 RST 22 SAV 22 SRE 22 STB 23 TRG 23 TST 23 WAI ...

Страница 8: ...e POWer DC 35 MEASure CAPability 36 MEASure TIME 36 Chapter7 Trigger Subsystem 37 TRIGger 37 TRIGger SOURce 37 TRIGger TIMer 37 Chapter8 Trace Subsystem 39 TRACe CLEar 39 TRACe FREE 39 TRACe POINts 39 TRACe FEED 39 TRACe FEED CONTrol 40 TRACe DATA 40 TRACe FILTer 40 TRACe DELay 40 TRACe TIMer 40 Chapter9 Source Subsystem 42 SOURce INPut 42 SOURce INPut SHORt 42 SOURce INPut TIMer 42 SOURce INPut T...

Страница 9: ...TRANsient ALEVel 52 SOURce RESistance TRANsient BLEVel 52 SOURce RESistance TRANsient 0 52 SOURce RESistance TRANsient BWIDth 52 SOURce RESistance HIGH 53 SOURce RESistance LOW 53 SOURce RESistance VDRop 53 SOURce RESistance LATCh STATe 53 SOURce POWer 53 SOURce POWer RANGe 54 SOURce POWer TRANsient MODE 54 SOURce POWer TRANsient ALEVel 54 SOURce POWer TRANsient BLEVel 54 SOURce POWer TRANsient AW...

Страница 10: ...AVe 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 ...

Страница 11: ...Put subsystem is listed below OUTPut SYNC OFF 0 ON 1 SYNC MODE NORMal CARRier POLarity NORMal INVerted OUTPut is the root class keyword SYNC is the second keyword MODE and POLarity are the third keyword Colon is used for separating the command keyword and the next level keyword 1 3 Command Type of SCPI SCPI has two types of commands common and subsystem Common commands generally are not related to...

Страница 12: ...URR PROT STAT OFF resulting in wrong command Movement in the subsystem In order to combine commands from different subsystems you need to be able to reset the header path to a null string within a message You do this by beginning the command with a colon which discards any previous header path For example you could clear the output protection and check the status of the Operation Condition registe...

Страница 13: ...ats for command display are as follows SOURce 1 2 VOLTage UNIT VPP VRMS DBM SOURce 1 2 FREQuency CENTer frequency MINimum MAXimum DEFault Based on the command syntax most commands and certain Parameter are expressed in both upper and lower cases Upper case refers to abbreviation of commands Shorter program line may send commands in abbreviated format Long format commands may be sent to ensure bett...

Страница 14: ...te 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 Semicolon It is used to separate several commands in the same subsystem and can also minimize typing For example to send the following command string TRIG SOUR EXT COUNT 10 has the sa...

Страница 15: ...ns of all common decimal notations including optional signs decimal points scientific notation etc Special values of numerical Parameter are also acceptable such as MIN MAX and DEF In addition suffixes for engineering units can also be sent together with numerical Parameter including M k m or u If the command accepts only some specific values the instrument will automatically round the input Param...

Страница 16: ...nding a response message Afte sending a query command the response message is placed in the Output Queue When the IT8800 Series is then addressed to talk the response message is sent from the Output Queue to the computer Multiple response messages If you send more than one query command in the same program message see the paragraph entitled Multiple Command Messages the multiple response messages ...

Страница 17: ...ic load sends the message only when commanded by a program message called a query The next figure illustrates SCPI message structure The Message Unit The simplest SCPI command is a single message unit consisting of a command header or keyword followed by a message terminator The message unit may include a parameter after the header The parameter can be numeric or a string VOLTage 20 NL Headers Hea...

Страница 18: ... 8 SCPI Command Complete SCPI commands sent to the electronic load are processed either sequentially or in parallel Sequential commands finish execution before a subsequent command begins Parallel commands allow other commands to begin executing while the parallel command is still executing Commands that affect trigger actions are among the parallel commands WAI OPC and OPC Common commands provide...

Страница 19: ... the following table GPIB Capabilities Response Interface Function Talker Listener All electronic load functions except for setting the communication paraments are programmable over the GPIB The electronic load can send and receive messages over the GPIB Status information is sent using a serial poll AH1 SH1 AH1 SH1 T6 L4T6 L4 Service Request The electronic load sets the SRQ line true if there is ...

Страница 20: ...not programmable However the following parity options are selectable after pressing Shift System EVEN Seven data bits with even parity ODD Seven data bits with odd parity NONE Eight data bits without parity Parity options are stored in non volatile memory Baud rate After pressing Shift System you can select one of the following baud rates 4800 9600 19200 38400 57600 115200 The baud rate is stored ...

Страница 21: ...r of data bits and flow control options Note that the electronic load is configured for 1 start bit and 1 stop bit these values are fixed The correct interface cables or adapters must be used as described under RS 232 Connector Note that even if the cable has the proper connectors for your system the internal wiring may be incorrect The interface cable must be connected to the correct serial port ...

Страница 22: ... SYSTem ERRor command 1 11 Status byte and service request SRQ Service request is controlled by two 8 bit registers the status byte register and the service request enable register Status byte register The summary messages from the status registers and queues are used to set or clear the appropriate bits B2 B3 B4 B5 and B7 of the status byte register These bits do not latch and their states 0 or 1...

Страница 23: ...SRQ In your test program you can periodically read the status byte register to check if a service request SRQ has occurred and what caused it If an SRQ occurs the program can for example branch to an appropriate subroutine that will service the request Typically service requests SRQs are managed by the serial poll sequence of the electronic load If an SRQ does not occur bit B6 RQS of the status by...

Страница 24: ...IG key TIMer this generates triggers that are in synchronization with the electronic load s internal oscillator as the trigger source The internal oscillator begins running as soon as this command is executed Send TRIG TIM to program the oscillator period EXTernal event detection is ended when an input trigger via the TRIGGER LINK connector is received by the electronic load BUS event detection is...

Страница 25: ...ed 2 RS Remote Sense When the real pannel sense is connected this bit is true or else false 3 OP Overpower An overpower condition has occurred This occurs if the unit exceeds the max power or it excees the user programmed power protection level removing the overpower condition clears the bit If the condition persists beyond the user programmable delay time PS bit is also set and the input is turne...

Страница 26: ... from executing because of an operating condition Errors in the range of 299 through 200 can set this bit 5 CME Command Error A syntax or semantic error has occurred or the load received a get within a program message Errors in the range of 200 through 100 can set this bit 7 PON Power On The unit has been turned off and then on since this bit was last read Status and service request enable registe...

Страница 27: ... CONDition command in the STATus Subsystem to read the condition registers 2 3 Event register Each status register set has an event register An event register is a latched read only register whose bits are set by the corresponding condition register Once a bit in an event register is set it remains set latched until the register is cleared by a specific clearing operation The bits of an event regi...

Страница 28: ... cannot set a bit in the status byte register 1 AND 0 0 To use the status byte register to detect events i e serial poll you must unmask the events by setting the appropriate bits of the enable registers To program and query the Standard Event Status Register use the ESE and ESE All other enable registers are programmed and queried using the ENABle and ENABLe Command An enable register is not clea...

Страница 29: ... Refer to chapter Programming the Status Registers which explains how to read specific register bits and use the information that they return Menmonic Name Description CLS Clear status Clear all event registers and Error Queue ESE NRf Event enable command Edit Standard Event Enable Register ESE Event enable query Read Standard Event Enable Register ESR Event status query Read Standard Event Status...

Страница 30: ...Bit ESB of the Status Byte Register to be set See chapter Programming the Status Registers for descriptions of the Standard Event Status registers The query reads the Standard Event Status Enable register Command Syntax ESE NRf Parameters 0 to 255 Power on Value see PSC Examples ESE 129 Query Syntax ESE Returned Parameters NR1 Related Commands ESR PSC STB ESR This query reads the Standard Event St...

Страница 31: ...C command provides notification that all overlapped commands have been completed All triggered actions are completed and the trigger system returns to the Idle state OPC does not prevent processing of subsequent commands but Bit 0 will not be set until all pending operations are completed The query causes the interface to place an ASCII 1 in the Output Queue when all pending operations are complet...

Страница 32: ...stored If a particular state is desired at power on it should be stored in location 0 It then will be recalled at power on if the power on state is set to RCL0 Use RCL to retrieve instrument states NOTE SAV does not save the programmed trigger values SOURce CURRent TRIGGer SOURce RESistance TRIGGer SOURce VOLTage TRIGGer Programming an RCL or a RST command causes the triggered settings to revert t...

Страница 33: ...r Programming the Status Registers for more information A serial poll also returns the value of the Status Byte register except that bit 6 returns Request for Service RQS instead of Master Status Summary MSS A serial poll clears RQS but not MSS When MSS is set it indicates that the electronic load has one or more reasons for requesting service Query Syntax STB Parameters None Returned Parameters N...

Страница 34: ...ommand is executed Overlapped commands are executed in parallel with other commands Commands that affect input voltage or state relays and trigger actions are overlapped with subsequent commands sent to the electronic load The WAI command prevents subsequent commands from being executed before any overlapped commands have been completed All triggered actions are completed and the trigger system re...

Страница 35: ...yte register The bit bit 3 is the logic OR of all query event register is enabled by the quest status enable register Command Syntax STATus QUEStionable ENABle NR1 Parameters 0 to 65535 Default value 0 Examples STAT QUES ENAB 32 STAT QUES ENAB 1 Query Syntax STATus QUEStionable ENABle Returned Parameters NR1 register value Related Commands STAT QUES STATus QUEStionable PTRansition The command set ...

Страница 36: ...ntax STATus QUEStionable CONDition Parameters None Examples STAT QUES COND Returned Parameters NR1 register value Related Commands STAT OPER COND STATus OPERation This command query the query operation event register values The event register is read only register which holds latches all value passed by the NTR and or PTR filter Read channel operation event register will clear it Query Syntax STAT...

Страница 37: ...al status of the electronic load Query Syntax STATus OPERation CONDition Parameters None Examples STAT OPER COND Returned Parameters NR1 register value Related Commands STAT QUES COND STATus PRESet After executing this command SCPI event register will get the following affection All the bits of below register will be cleared Quest event enable register Operation event enable register Note that the...

Страница 38: ...up CRD Parameters RST SAV0 RST value RST Examples SYST POS RST Query Syntax SYSTem POSetup Returned Parameters CRD Related Commands RST SAV SYSTem VERSion This query returns the SCPI revision of the load used The format is YYYY V where YYYY is the year and V is the revision number for that year Query Syntax SYSTem VERSion Parameters None Examples SYST VERS Returned Parameters NR2 SYSTem ERRor This...

Страница 39: ...RWL SYSTem REMote The command sets the load to remote mode when in RS232 mode All the buttons except for the LOCAL button will lose function In the remote state press LOCAL key return to local mode Command Syntax SYSTem REMote Parameters None Examples SYST REM Related Commands SYST LOC SYST RWL SYSTem RWLock This command can set the load to remote mode all the button on front panel will lose funct...

Страница 40: ...icates display normally TEXT indicates text display mode Command Syntax DISPlay WINDow MODE CRD Parameters NORMal TEXT RST value NORMal Examples DISP MODE TEXT Query Syntax DISPlay WINDow MODE ReturnedParameters 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 Exampl...

Страница 41: ...age across the electronic load inputs in volts FETCh VOLTage MAX This command returns the last measured input maximum voltage stored in the communications buffer of the electronic load A new measurement is not initiated by this command Group Measurement Syntax FETCh VOLTage MAX Returns NR2 is the measured input maximum voltage in volts Example FETC VOLT MAX might return 100 0011 which would be the...

Страница 42: ...ctronic load inputs in amperes FETCh CURRent MAX This command returns the last measured input maximum current stored in the communications buffer of the electronic load A new measurement is not initiated by this command Group Measurement Syntax FETCh CURRent MAX Returns NR2 is the measured input maximum current in amperes Example FETC CURR MAX might return 40 001 which would be the measured maximu...

Страница 43: ...mmand returns the last measured discharging capability stored in the communications buffer of the electronic load A new measurement is not initiated by this command Group Measurement Syntax FETch CAPability Returns NR2 is the measured input discharging capability in ampere hour Example FETC CAP might return 5 011 which would be the measured discharging capability of the electronic load in ampere h...

Страница 44: ...Group Measurement Syntax MEASure VOLTage MAX Returns NR2 is the measured input maximum voltage in volts Example MEAS VOLT MAX might return 100 0011 which would be the measured maximum voltage across the electronic load inputs in volts MEASure VOLTage MIN This command initiates and executes a new minimum voltage measurement and returns the measured input minimum voltage of the electronic load Group...

Страница 45: ...rent in amperes Example MEAS CURR MAX might return 40 001 which would be the measured maximum current across the electronic load inputs in amperes MEASure CURRent MIN This command initiates and executes a new minimum current measurement and returns the measured input minimum current of the electronic load Group Measurement Syntax MEASure CURRent MIN Returns NR2 is the measured input minimum curren...

Страница 46: ...easurement Syntax MEASure CAPability Returns NR2 is the measured input discharging capability in ampere hour Example MEAS CAP might return 5 011 which would be the measured discharging capability of the electronic load in ampere hour MEASure TIME This command initiates and executes a new discharging time measurement and returns the measured input discharging time of the electronic load Group Measu...

Страница 47: ...essed as soon as it is received HOLD Only TRIG IMM command will generate a HOLD mode trigger All the other trigger commands are not considered MANUal The event occurs when the Trig key is pressed TIMer The trigger will synchronize with the crystal within the electronic load Once the command is executed a synchronous oscillator will start running Use the TRIG TIM to edit crystal cycle Command Synta...

Страница 48: ...Trigger Subsystem Copyright ITECH Electronic Co Ltd 38 DEFault Returned Parameter NR3 Relataed Commands ABOR TRIG TRIG SOUR TRIG DEL ...

Страница 49: ...ble and the second value indicates how many bytes are reserved to store readings Query Syntax TRACe FREE Returned Parameters NR1 NR1 Examples TRAC FREE TRACe POINts This command is used to specify the size of the buffer Command Syntax TRACer POINts NRf Parameters 2 to 1000 MINimum MAXimum DEFault RST Value 1000 Examples TRAC POIN 10 Query Syntax TRACe POINts MINimum MAXimum DEFault Returned Parame...

Страница 50: ...d to talk all the readings stored in the buffer are sent to the computer Query Syntax TRACe DATA Returned Parameters NR3 TRACe FILTer This command is used to select whether the data in cache is the data filtered Command Syntax TRACe FILTer STATe BOOL Parameters 0 1 ON OFF RST Value OFF Examples TRAC FILT 1 Query Syntax TRACe FILTer STATe Returned Parameters NR1 TRACe DELay This command is used to ...

Страница 51: ...Trace Subsystem Copyright ITECH Electronic Co Ltd 41 Examples TRAC TIM 0 1 Query Syntax TRACe TIMer MINimum MAXimum DEFault Returned Parameters NR3 ...

Страница 52: ... SOURce INPut SHORt This command programs the specified electronic load module to the maximum current that it can sink in the present operating range Command Syntax SOURce INPut SHORt STATe bool Parameters 0 1 OFF ON RST Value OFF Examples INP SHOR 1 Query Syntax INPut SHORt STATe Returned Parameters 0 1 Related Commands INP SOURce INPut TIMer These commands enable or disable the load on timer Com...

Страница 53: ...e mode POWer constant power mode Command Syntax SOURce FUNCtion function Parameters CURRent RESistance VOLTage POWer RST Value CURRent Examples FUNC RES Query Syntax SOURce FUNCtion Returned Parameters CRD SOURce FUNCtion MODE This command determines whether the input regulation mode is controlled by values in a list or by the command FUNCtion settings FIXed The regulation mode is determined by th...

Страница 54: ...m DEFault Unit A amperes RST Value MINimum Examples CURR 5 CURR LEV 0 5 Query Syntax SOURce CURRent LEVel IMMediate MINimum MAXimum DEFault Returned Parameters NR3 Related Commands CURR RANG SOURce CURRent RANGe This command sets the current range of the electronic load module There are two current ranges High Range model dependent see Table 4 1 Low Range model dependent see Table 4 1 When you pro...

Страница 55: ... This command sets the slew rate of the current for positive going transitions MAXimum sets the slew to the fastest possible rate MINimum sets the slew to the slowest rate Command Syntax SOURce CURRent SLEW POSitive NRf Parameters MINimum to MAXimum MAXimum MINimum DEFault Unit A amps per micro second RST Value MAXimum Examples CURR SLEW POS MAX Query Syntax SOURce CURRent SLEW POSitive MINimum MA...

Страница 56: ...e soft current protection level If the input current exceeds the soft current protection level for the time specified by CURR PROT DEL the input is turned off 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 0 through MAX Unit A amperes RST Value M...

Страница 57: ...s CRD Related Commands CURR TRAN ALEV TRAN SOURce CURRent TRANsient ALEVel SOURce CURRent TRANsient BLEVel This command specifies the transient level of the input current The transient function switches between the level a and level b Command Syntax SOURce CURRent TRANsient ALEVel NRf SOURce CURRent TRANsient BLEVel NRf Parameters 0 through MAX MINimum MAXimum DEFault Unit A amperes RST Value ALEV...

Страница 58: ... HIGH 5 Query Syntax SOURce CURRent HIGH MINimum MAXimum DEFault SOURce CURRent LOW MINimum MAXimum DEFault Returned Parameters NR3 SOURce VOLTage This command sets the voltage that the load will regulate when operating in constant voltage mode Command Syntax SOURce VOLTage LEVel IMMediate NRf Parameters MINimum through MAX MINimum MAXimum DEFault Unit V volts RST Value MAXimum Examples VOLT 5 Que...

Страница 59: ...lts RST Value MINimum Examples VOLT ON 5 Query Syntax SOURce VOLTage LEVel ON MINimum MAXimum DEFault Returned Parameters NR3 Related Commands VOLT LATCh SOURce VOLTage LATCh This command sets the action type of Von Command Syntax SOURce VOLTage LATCh STATe b Parameters 0 1 ON OFF RST Value ON Examples VOLT LATC 1 Query Syntax SOURce VOLTage LATCh STATe MINimum MAXimum DEFault Returned Parameters ...

Страница 60: ...h MAX MINimum MAXimum DEFault Unit V volts RST Value ALEVEL MAXimum BLEVel MINnum Examples VOLT TRAN ALEV 5 VOLT TRAN BLEV 0 5 Query Syntax SOURce VOLTage TRANsient ALEVel MINimum MAXimum DEFault SOURce VOLTage TRANsient BLEVel MINimum MAXimum DEFault Returned Parameters NR3 Related Commands VOLT SOURce VOLTage TRANsient AWIDth SOURce VOLTage TRANsient BWIDth This command specifies the transient p...

Страница 61: ... mode Command Syntax SOURce RESistance LEVel IMMediate NRf Parameters MINimum through MAX MINimum MAXimum DEFault Unit RST Value MAXimum Examples RES 5 RES LEV 3 5 Query Syntax SOURce RESistance LEVel IMMediate MINimum MAXimum DEFault Returned Parameters NR3 Related Commands RES RANG SOURce RESistance RANGe This command sets the resistance range of the electronic load module Command Syntax SOURce ...

Страница 62: ...evel a and level b Command Syntax SOURce RESistance TRANsient ALEVel NRf SOURce RESistance TRANsient BLEVel NRf Parameters MIN through MAX MINimum MAXimum DEFault Unit RST Value ALEVEL MAXimum BLEVel MINnum Examples RES TRAN ALEV 5 POW TRAN BLEV 0 5 Query Syntax SOURce RESistance TRANsient ALEVel MINimum MAXimum DEFault SOURce RESistance TRANsient BLEVel MINimum MAXimum DEFault Returned Parameters...

Страница 63: ... loads and the LED cut off voltage value when LED test function is ON Command Syntax SOURce RESistance VDRop NRf Parameters 0 through MAX MINimum MAXimum DEFault Unit V volts RST Value MINimum Examples RES VDR 5 Query Syntax SOURce RESistance VDRop MINimum MAXimum DEFault Returned Parameters NR3 Related Commands VOLT VDR SOURce RESistance LATCh STATe This command selects to enable or disable the L...

Страница 64: ...e of the transient generator as follows in constant current mode CONTinuous The transient generator puts out a continuous pulse stream after receipt of a trigger 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 Command Syntax SOURce POWer TRANsient MODE mode Parameters CONTinuous PULS...

Страница 65: ...AN AWID 0 001 POW TRAN BLEV 0 02 Query Syntax SOURce POWer TRANsient AWIDth MINimum MAXimum DEFault SOURce POWer TRANsient BWIDth MINimum MAXimum DEFault Returned Parameters NR3 Related Commands POW SOURce POWer HIGH SOURce POWer LOW This command sets the voltage high and low level in constant power mode Command Syntax SOURce POWer HIGH NRf SOURce POWer LOW NRf Parameters MINimum through MAX MINim...

Страница 66: ... specifies the time that the input power can exceed the protection level before the input is turned off Command Syntax SOURce POWer PROTection DELay NRf Parameters 0 to 60 seconds MINimum MAXimum DEFault Unit seconds RST Value 0 Examples POW PROT DEL 5 Query Syntax SOURce POWer PROTection DELay MINimum MAXimum DEFault Returned Parameters NR1 Related Commands POW PROT SOURce POWer CONFig This comma...

Страница 67: ...mand sets the number of times that the list is executed before it is completed The command accepts parameters in the range 1 through 65536 but 65536 is interpreted as infinity Command Syntax SOURce LIST COUNt NRf Parameters 1 to 65536 MINimum MAXimum Examples LIST COUN 3 Query Syntax SOURce LIST COUNt MINimum MAXimum Returned Parameters NR3 Related Commands LIST STEP SOURce LIST STEP This command ...

Страница 68: ...mes exceed 16383S the input remains at the present level until a trigger sequences the next point in the list Else At the end of the dwell time the input automatically changes to the next point in the list Command Syntax SOURce LIST WIDth NR1 NRf Parameters 1 to steps 20uS to max Unit NONE s seconds Examples LIST WID 1 0 02 LIST WID 2 0 5 Query Syntax SOURce LIST WIDth NR1 Returned Parameters NR3 ...

Страница 69: ...on The larger the filter count the more filtering that is performed Group Sense Syntax SENSe AVERage COUNt NR1 SENSe AVERage COUNt Arguments 2 16 Returns NR1 Example SENSe AVERage COUNt 3 SENSe TIME VOLTage1 SENSe TIME VOLTage2 The command sets the output voltage point of the load when measuring the rise and fall time of voltage output Command Syntax SENSe TIME VOLTage1 NRf SENSe TIME VOLTage2 NRf...

Страница 70: ...Sense Subsystem Copyright ITECH Electronic Co Ltd 60 Syntax SYSTem SENSe STATe BOOL SYSTem SENSe STATe Arguments 0 1 OFF ON Returns 0 1 Example SYSTem SENSe 1 ...

Страница 71: ...t code Everytime when calibration status changed from enabled status to disabled status any new calibration constants will be lost after power down unless you have utilized the save command CALibrate SAVE Command Syntax CALibrate SECure STATe bool SRD Parameters 0 1 OFF ON password RST Value ON Examples CAL SEC 0 N3301A CAL SEC ON Query Syntax CALibrate SECure STATe Returned Parameters NR1 Related...

Страница 72: ... high current range This can only calibrate the ammeter that selected through command CONF CURR Command Syntax CALibrate CURRent METEr POINt point Parameters P1 P2 P3 P4 Examples CAL CURR METEr POIN P2 Related Commands CAL STAT CAL SAV CALibrate CURRent METEr LEVel This command is only effective in calibration mode Input the calibration current value according to reading of external measuring mete...

Страница 73: ...s used to set the calibration point in 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 METEr POINt point Parameters P1 P2 P3 P4 Examples CAL VOLT METEr POIN P2 Related Commands CAL STAT CAL SAV CALibrate VOLTage METEr LEVel This command only be effective in calibration mode Acco...

Страница 74: ...or parameter 140 Wrong type of parameter s 150 Wrong number of parameters 160 Unmatched quotation mark single double in parameters 165 Unmatched bracket 170 Command keywords were not recognized 180 No entry in list to retrieve number list or channel list 190 Too many dimensions in entry to be returned in parameters 191 Too many char 150 String data error 151 Invalid string data e g END received be...

Страница 75: ...mplete programming message received 430 Query DEADLOCKED too many queries in command string 440 Query UNTERMINATED after indefinite response Checking errors from 0 to 99 Set bit 3 of standard event register are explained as follows 0 No error 1 Module Initialization Lost 2 Mainframe Initialization Lost 3 Module Calibration Lost 4 Non volatile RAM STATE section checksum failed 5 Non volatile RAM RS...

Страница 76: ...404 Computed readback cal constants are incorrect 405 Computed programming cal constants are incorrect 406 Incorrect sequence of calibration commands 407 CV or CC status is incorrect for this command 408 Output mode switch must be in NORMAL position 600 Lists inconsistent lists have different list lengths 601 Too many sweep points 602 Command only applies to RS 232 interface 603 FETCH of data that...

Страница 77: ...ing 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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