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Содержание руководства
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Programming Guide Dynamic Measurement DC Source Agilent Models 66312A, 66332A System DC Power Supply Agilent Models 6631B, 6632B, 6633B, 6634B 6611C, 6612C, 6613C, 6614C Agilent Part No. 5962-8198 Printed in U.S.A. Microfiche No 5962-8199 January, 2000[...]
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2 Safety Guidelines The beginning of the Operating Guide has a Safety Summary page. Be sure you are familiar with the information on this page before programming the dc source for operation from a controller. Printing History The edition and current revision of this manual are indicated below. Reprints of this guide containing minor corrections and[...]
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3 Table of Contents Safety Guidelines 2 Printing History 2 Table of Contents 3 1 - GENERAL INFORMATION 7 About this Guide 7 Documentation Summary 7 External References 8 GPIB References 8 SCPI References 8 2 - INTRODUCTION TO PROGRAMMING 9 VXI plug&play Power Products Instrument Drivers 9 Supported Applications 9 System Requirements 9 Downloadi[...]
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4 Output Trigger System Model 21 Setting the Voltage or Current Trigger Levels 21 Initiating the Output Trigger System 22 Generating Triggers 22 Making Measurements 23 Voltage and Current Measurements 23 Internally Triggered Measurements 25 SCPI Triggering Nomenclature 25 Measurement Trigger System Model 25 Initiating the Measurement Trigger System[...]
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5 MEASure:CURRent? FETCh:CURRent? 48 MEASure:CURRent:ACDC? FETCh:CURRent:ACDC? 48 MEASure:CURRent:HIGH? FETCh:CURRent:HIGH? 48 MEASure:CURRent:LOW? FETCh:CURRent:LOW? 49 MEASure:CURRent:MAXimum? FETCh:CURRent: MAXimum? 49 MEASure:CURRent:MINimum? FETCh:CURRent:MINimum? 49 MEASure:VOLTage? FETCh:VOLTage? 50 MEASure:VOLTage:ACDC? FETCh:VOLTage:ACDC? [...]
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6 System Commands 68 DISPlay 68 DISPlay:MODE 68 DISPlay:TEXT 68 SYSTem:ERRor? 69 SYSTem:LANGuage 69 SYSTem:VERSion? 69 SYSTem:LOCal 70 SYSTem:REMote 70 SYSTem:RWLock 70 *IDN? 70 *OPT? 71 *RCL 71 *RST 71 *SAV 72 *TST? 72 Trigger Commands 73 ABORt 73 INITiate:SEQuence INITiate:NAME 73 INITiate:CONTinuous:SEQuence1 INITiate:CONTinuous:NAME 73 TRIGger [...]
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7 1 General Information About this Guide This guide provides remote programming information for the following series of GPIB programmable dc power supplies: • Agilent 66312A • Agilent 66332A • Agilent 6631B/6632B/6633B/6634B • Agilent 6611C/6612C/6613C/6614C You will find the following information in the rest of this guide: Chapter 1 Introd[...]
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1 - General Information 8 External References GPIB References The most important GPIB documents are your controller programming manuals - BASIC, GPIB Command Library for MS DOS, etc. Refer to these for all non-SCPI commands (for example: Local Lockout). The following are two formal documents concerning the GPIB interface: ♦ ANSI/IEEE Std. 488.1-1[...]
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9 2 Introduction to Programming VXI plug&play Power Products Instrument Drivers VXI plug&play instrument drivers for Microsoft Windows 95 and Windows NT are now available on the Web at http://www.agilent.com/find/drivers. These instrument drivers provide a high-level programming interface to your Agilent Technologies instrument. VXI plug&am[...]
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2 - Introduction to Programming 10 6 . To use the VXI plug&play instrument driver, follow the directions in the VXI plug&play online help under “Introduction to Programming”. Accessing Online Help A comprehensive online programming reference is provided with the driver. It describes how to get started using the instrument driver with Ag[...]
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Introduction to Programming - 2 11 Baud Rate The front panel Address key lets you select one of the following baud rates, which is stored in non-volatile memory: 300 600 1200 2400 4800 9600 RS-232 Flow Control The RS-232 interface supports several flow control options that are selected using the front panel Address key. For each case, the dc source[...]
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2 - Introduction to Programming 12 FUNCTION gets$ ‘ Get a new line feed terminated string from device #1 C$ = “” ‘ Set C$ to null WHILE c$ <> CHR$ (10) ‘ Set loop to stop at Line Feed C$ = INPUT$ (1, #1) ‘ Read 1 bit into file #1 Resp$ = resp$ + c$ ‘ Concantenate bit with previous bits WEND ‘ End of WHILE loop gets$ = resp$ ?[...]
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Introduction to Programming - 2 13 Types of SCPI Commands SCPI has two types of commands, common and subsystem. ♦ Common commands generally are not related to specfic operation but to controlling overall dc source functions, such as reset, status, and synchronization. All common commands consist of a three-letter nmemonic preceded by an asterisk:[...]
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2 - Introduction to Programming 14 Moving Among Subsystems 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 chec[...]
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Introduction to Programming - 2 15 Data Ke y words Ke y word Separator Messa g e Unit Separators Messa g e Unit Query Indic ator Messa g e Terminator Root Specifier VOLT <NL > :L E V 2 0 PROT 21 ; ; : CURR? Figure 2-2. Command Message Structure The Message Unit The simplest SCPI command is a single message unit consisting of a command header [...]
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2 - Introduction to Programming 16 NOTE: All RS-232 response data sent by the dc source is terminated by the ASCII character pair <carriage return><newline>. This differs from GPIB response data which is terminated by the single character <newline> with EOI asserted. SCPI Data Formats All data programmed to or returned from the dc[...]
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Introduction to Programming - 2 17 SCPI Command Completion SCPI commands sent to the dc source 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 trigge[...]
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19 3 Programming the DC Source Introduction This chapter contains examples on how to program your dc source. Simple examples show you how to program: u output functions such as voltage and current u internal and external triggers u measurement functions u the status and protection functions NOTE: These examples in this chapter show which commands a[...]
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3 - Programming the DC Source 20 Output Voltage The output voltage is controlled with the VOLTage command. For example, to set the output voltage to 25 volts, use: VOLTage 125 The dc source can be programmed to turn off its output if the output voltage exceeds a preset peak voltage limit. This protection feature is implemented with the VOLTage:PROT[...]
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Programming the DC Source - 3 21 Triggering Output Changes The dc source has two independent trigger systems. One is used for generating output changes, and the other is used for triggering measurements. This section describes the output trigger system. The measurement trigger system is described under "Triggering Measurements". SCPI Trig[...]
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3 - Programming the DC Source 22 Initiating the Output Trigger System When the dc source is turned on, the trigger subsystem is in the idle state. In this state, the trigger subsystem ignores all triggers. Sending the following commands at any time returns the trigger system to the Idle state: ABORt *RST *RCL The INITiate commands move the trigger [...]
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Programming the DC Source - 3 23 Making Measurements The dc source has the ability to make several types of voltage or current measurements. The measurement capabilities of the Agilent 66312A and Agilent 66332A models are particulary useful for loads that draw current in pulses. NOTE: You cannot measure output voltage and current simultaneously. Al[...]
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3 - Programming the DC Source 24 This results in a data acquisition time of 32 milliseconds. Adding a command processing overhead of about 20 milliseconds results in a total measurement time of about 50 milliseconds per measurement sample. Ripple rejection is a function of the number of cycles of the ripple frequency contained in the acquisition wi[...]
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Programming the DC Source - 3 25 Internally Triggered Measurements You can use the data acquisition trigger system to synchronize the timing of the voltage and current data acquisition with a BUS or internal trigger source. Then use the FETCh commands to return different calculations from the data acquired by the measurement trigger. SCPI Triggerin[...]
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3 - Programming the DC Source 26 INITiate:SEQuence2 or INITiate:NAME ACQuire After a trigger is received and the data acquisition completes, the trigger system will return to the Idle state (unless multiple measurements are desired). Thus it will be necessary to initiate the system each time a triggered acquisition is desired. NOTE: You cannot init[...]
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Programming the DC Source - 3 27 TRI G: ACQ: SL OP: CURR TR IG:AC Q : LEV:CURR <le ve l > TRI G: ACQ: HYST : CUR R <v a l u e > Tr i gg er occurs on ri sin g ed g e whe n s i g nal crosses posit ive h y ster es is b and l imit TR IG:AC Q:H YST :VO LT TRI G: ACQ: SL OP: CURR NEG TR IG:AC Q:S LOP :VO LT TR IG:AC Q:S LOP : V O LT TRI G: AC[...]
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3 - Programming the DC Source 28 Measuring Output Pulses (Agilent 66312A, 66332A Only) Current Detector Check that the current detector is set to ACDC when measuring current pulses or other waveforms with a frequency content greater than a few kilohertz. SENSe:CURRent:DETect ACDC Only select DC as the measurement detector if you are making only DC [...]
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Programming the DC Source - 3 29 Controlling Measurement Samples Varying the Voltage or Current Sampling Rate You can vary both the number of data points in a measurement sample, as well as the time between samples. This is illustrated in Figure 3-5. SENS:SWE:POI N < #o f p oints > SENS:SWE:TI NT <t i me> TRI G: ACQ: COUN: CURR < #o [...]
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3 - Programming the DC Source 30 Pre-event and Post-event Triggering (Agilent 66312A, 66332A Only) When a measurement is initiated, the dc source continuously samples either the instantaneous output voltage or current. As shown in figure 3-6, you can move the block of data being read into the acquisition buffer with reference to the acquisition tri[...]
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Programming the DC Source - 3 31 10 !Rev A.00.00 20 OPTION BASE 1 30 DIM Curr_array(100) 40 ! 50 ASSIGN @Ps TO 705 60 ASSIGN @Ld TO 706 80 OUTPUT @Ps;"*RST" ! Sets supply to default values 90 OUTPUT @Ps;"OUTP ON" ! Turn on power supply output 100 OUTPUT @Ps;"VOLT 5;CURR 5" ! Program power supply to 5 volts, 5 amps 110 [...]
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3 - Programming the DC Source 32 Programming the Status Registers You can use status register programming to determine the operating condition of the dc source at any time. For example, you may program the dc source to generate an interrupt (assert SRQ) when an event such as a current limit occurs. When the interrupt occurs, your program can then a[...]
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Programming the DC Source - 3 33 Table 3-1. Bit Configurations of Status Registers Bit Signal Meaning 0 5 8 10 11 CAL WTG CV CC+ CC- Operation Status Group The dc source is computing new calibration constants The dc source is waiting for a trigger The dc source is in constant voltage mode The dc source is in constant current mode The dc source is i[...]
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3 - Programming the DC Source 34 Questionable Status Group The Questionable Status registers record signals that indicate abnormal operation of the dc source. As shown in figure 3-7, the group consists of the same type of registers as the Status Operation group. The outputs of the Questionable Status group are logically-ORed into the QUEStionable s[...]
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Programming the DC Source - 3 35 The MSS Bit This is a real-time (unlatched) summary of all Status Byte register bits that are enabled by the Service Request Enable register. MSS is set whenever the dc source has one or more reasons for requesting service. *STB? reads the MSS in bit position 6 of the response but does not clear any of the bits in t[...]
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3 - Programming the DC Source 36 event to be summed into the Questionable summary bit. Use: STATus:QUEStionable:PTR 19;ENABle 19 (1 + 2 + 16 = 19) Step 3 Program the Service Request Enable register to allow both the Operation and the Questionable summary bits from the Status Byte register to generate RQS. Use: *SRE 136 (8 + 128 = 136) Step 4 When y[...]
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Programming the DC Source - 3 37 Using the Inhibit/Fault Port as a Digital I/O You can configure the inhibit/fault port to provide a digital input/output to be used with custom digital interface circuits or relay circuits. As shipped from the factory, the port is shipped for inhibit/fault operation. You can change the configuration of the port to o[...]
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39 4 Language Dictionary Introduction This section gives the syntax and parameters for all the IEEE 488.2 SCPI commands and the Common commands used by the dc source. It is assumed that you are familiar with the material in “Chapter 2 - "Remote Programming". That chapter explains the terms, symbols, and syntactical structures used here [...]
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4 - Language Dictionary 40 Table 4-1. Subsystem Commands Syntax ABORt Resets the trigger system to the Idle state CALibrate : :CURRent [:SOURce] [:DC] [:POSitive] :NEGative Calibrate positive output current and high current measurement range Calibrate negative output current :MEASure [:DC] :LOWRange Calibrate low current measurement range :AC Calib[...]
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Language Dictionary - 4 41 Table 4-1. Subsystem Commands Syntax (continued) OUTPut [:STATe] <bool> [,NORelay] Enables/disables the dc source output :DFI [:STATe] <bool> Enable/disable DFI output :SOURce <source> Selects event source (QUES | OPER | ESB | RQS | OFF) :PON :STATe <state> Set power-on state (*RST | RCL0) :PROTect[...]
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4 - Language Dictionary 42 Table 4-1. Subsystem Commands Syntax (continued) STATus :PRESet Presets all enable and transition registers to power-on :OPERation [:EVENt]? Returns the value of the event register :CONDition? Returns the value of the condition register :ENABle <n> Enables specific bits in the Event register :NTRansition<n> Se[...]
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Language Dictionary - 4 43 Common Commands Common commands begin with an * and consist of three letters (command) or three letters and a ? (query). They are defined by the IEEE 488.2 standard to perform common interface functions. Common commands and queries are categorized under System, Status, or Trigger functions and are listed at the end of eac[...]
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4 - Language Dictionary 44 Calibration Commands Calibration commands let you: u Enable and disable the calibration mode u Change the calibration password u Calibrate the current and voltage programming and measurement, and store new calibration constants in nonvolatile memory. NOTE: If calibration mode has not been enabled with CALibrate:STATe, pro[...]
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Language Dictionary - 4 45 CALibrate:DATA This command enters a calibration value that you obtain by reading an external meter. You must first select a calibration level (with CALibrate:LEVel) for the value being entered. Command Syntax CALibrate:DATA<NRf> Parameters <external reading> Unit A (amperes) Examples CAL:DATA 3222.3 MA CAL:DA[...]
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4 - Language Dictionary 46 CALibrate:STATe This command enables and disables calibration mode. The calibration mode must be enabled before the will accept any other calibration commands. The first parameter specifies the enabled or disabled state. The second parameter is the password. It is required if the calibration mode is being enabled and the [...]
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Language Dictionary - 4 47 Measurement Commands Measurement commands consist of measure and sense commands. Measure commands measure the output voltage or current. Measurements are performed by digitizing the instantaneous output voltage or current for a defined number of samples and sample interval, storing the results in a buffer, and calculating[...]
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4 - Language Dictionary 48 MEASure:CURRent? FETCh:CURRent? FETCh:CURRent? applies to Agilent 66312A, 66332A Only These queries return the dc output current. Query Syntax MEASure:[SCALar]:CURRent[:DC]? FETCh:[SCALar]:CURRent[:DC]? Parameters None Examples MEAS:CURR? MEAS:CURR:DC? Returned Parameters <NR3> Related Commands MEAS:VOLT? MEASure:CU[...]
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Language Dictionary - 4 49 MEASure:CURRent:LOW? FETCh:CURRent:LOW? Agilent 66312A, 66332A Only These queries return the Low level current of a current pulse waveform. The instrument first measures the minimum and maximum data points of the pulse waveform. It then generates a histogram of the pulse waveform using 1024 bins between the maximum and mi[...]
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4 - Language Dictionary 50 MEASure:VOLTage? FETCh:VOLTage? FETCh:VOLTage? applies to Agilent 66312A, 66332A Only These queries return the dc output voltage. Query Syntax MEASure[:SCALar]:VOLTage[:DC]? MEASure[:SCALar]:VOLTage[:DC]? Parameters None Examples MEAS:VOLT? FETC:VOLT:DC? Returned Parameters <NR3> Related Commands MEAS:CURR? MEASure:[...]
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Language Dictionary - 4 51 MEASure:VOLTage:LOW? FETCh:VOLTage:LOW? Agilent 66312A, 66332A Only These queries return the Low level voltage of a voltage pulse waveform. The instrument first measures the minimum and maximum data points of the pulse waveform. It then generates a histogram of the pulse waveform using 1024 bins between the maximum and mi[...]
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4 - Language Dictionary 52 SENSe:CURRent:RANGe This command selects the dc current measurement range. All models have two current measurement ranges: High Range: 0 through MAX (see Table 4-3) Low Range: 0 through 0.02 A (all models) The High range covers the full current measurement capability of the instrument. The Low range measures currents up t[...]
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Language Dictionary - 4 53 SENSe:FUNCtion Agilent 66312A, 66332A Only This command configures the measurement sensor to measure either voltage or current when an acquire trigger is used. The query returns the function setting, either VOLT or CURR. Command Syntax SENSe:FUNCtion <function Parameters "VOLTage" | "CURRent" Exampl[...]
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4 - Language Dictionary 54 SENSe:WINDow This command sets the window function that is used in output measurement calculations. The following functions can be selected: HANNing A signal conditioning window that reduces errors in dc and rms measurement calculations in the presence of periodic signals such as line ripple. It also reduces jitter when m[...]
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Language Dictionary - 4 55 Output Commands Output commands consist of output and source commands. Output commands control the output and digital port functions. They also control the output relay on units with Relay Option 760. Source commands program the actual voltage, current, and digital port output. OUTPut This command enables or disables the [...]
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4 - Language Dictionary 56 OUTPut:PON:STATe This command selects the power-on state of the dc source. This information is saved in non-volatile memory. The following states can be selected: RST Sets the power-on state to *RST. Refer to the *RST command as described in this chapter for more information. RCL0 Sets the power-on state to *RCL 0. Refer [...]
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Language Dictionary - 4 57 OUTPut:RELay Agilent 66332A, 6632B, 6633B, 6634B, 6611C, 6612C, 6613C, 6614C Only This command is only valid for units with Relay Option 760, otherwise an error will occur. Programming ON closes the output relay contacts; programming OFF opens them. The relay is controlled independently of the output state. If the dc sour[...]
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4 - Language Dictionary 58 [SOURce:]CURRent This command sets the immediate current level of the dc source . The immediate level is the current programmed for the output terminals. Command Syntax [SOURce]:CURRent[:LEVel][:IMMediate][:AMPLitude]<NRf+> Parameters see Table 4-3 Default Suffix A (amperes) *RST Value 10% of MAX Examples CURR 200 M[...]
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Language Dictionary - 4 59 [SOURce:]DIGital:DATA This command sets and reads the dc source digital control port when that port is configured for Digital I/O operation. The port has three signal pins and a digital ground pin. Pins 1 and 2 are output pins controlled by bits 0 and 1. Pin 3 is controlled by bit 2, and can be programmed to serve either [...]
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4 - Language Dictionary 60 [SOURce:]VOLTage:ALC:BANDwidth? [SOURce:]VOLTage:ALC:BWIDth? Agilent 66332A, 6631B, 6632B, 6633B and 6634B Only These queries return the setting of the output mode switch. The output mode switch is used to connect or disconnect the the output capacitor located inside the unit. The returned value is 15,000 if the switch is[...]
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Language Dictionary - 4 61 Status Commands Status commands program the dc source status registers. The dc source has three groups of status registers; Operation, Questionable, and Standard Event. The Standard Event group is programmed with Common commands as described later in this section. The Operation and Questionable status groups each consist [...]
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4 - Language Dictionary 62 STATus:OPERation:ENABle This command and its query set and read the value of the Operational Enable register. This register is a mask for enabling specific bits from the Operation Event register to set the operation summary bit (OPER) of the Status Byte register. This bit (bit 7) is the logical OR of all the Operatonal Ev[...]
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Language Dictionary - 4 63 Table 4-5. Bit Configuration of Questionable Status Registers Bit Position 15 14 13-11 10 9 8-5 4 3 2 1 0 Bit Name not used Meas Ovld not used Unreg RI not used OT not used FS OCP OV Bit Weight 16384 1024 512 16 4 2 1 OV = overvoltage protection has tripped OCP = overcurrent protection has tripped FS = the fuse is blown O[...]
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4 - Language Dictionary 64 STATus:QUEStionable:NTR STATus:QUEStionable:PTR These commands allow you to set or read the value of the Questionable NTR (Negative-Transition) and PTR (Positive-Transistion) registers. These registers serve as polarity filters between the Questionable Enable and Questionable Event registers to cause the following actions[...]
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Language Dictionary - 4 65 *ESE This command programs the Standard Event Status Enable register bits. The programming determines which events of the Standard Event Status Event register (see *ESR?) are allowed to set the ESB (Event Summary Bit) of the Status Byte register. A "1" in the bit position enables the corresponding event. All of [...]
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4 - Language Dictionary 66 * OPC does not prevent processing of subsequent commands, but bit 0 will not be set until all pending operations are completed. *OPC? causes the instrument to place an ASCII "1" in the Output Queue when all pending operations are completed. Unlike *OPC, *OPC? prevents processing of all subsequent commands. It is[...]
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Language Dictionary - 4 67 Command Syntax *SRE <NRf> Parameters 0 to 255 Power-on Value see *PSC Example *SRE 20 Query Syntax *SRE? Returned Parameters <NR1> (register binary value) Related Commands *ESE *ESR *PSC CAUTION: If *PSC is programmed to 0, the *SRE command causes a write cycle to nonvolatile memory. Nonvolatile memory has a f[...]
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4 - Language Dictionary 68 System Commands System commands consist of system, display, and common commands. System commands commands control system functions that are not directly related to output control or measurement functions. Display commands control the front panel display of the . Common commands also perform system functions. The following[...]
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Language Dictionary - 4 69 SYSTem:ERRor? This query returns the next error number followed by its corresponding error message string from the remote programming error queue. The queue is a FIFO (first-in, first-out) buffer that stores errors as they occur. As it is read, each error is removed from the queue. When all errors have been read, the quer[...]
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4 - Language Dictionary 70 SYSTem:LOCal For RS-232 Operation Only This command places the dc source in local mode during RS-232 operation. The front panel keys are functional. Command Syntax SYSTem:LOCal Parameters None Example SYST:LOC Related Commands SYST:REM SYST:RWL SYSTem:REMote For RS-232 Operation Only This command places the dc source in r[...]
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Language Dictionary - 4 71 *OPT? This query requests the dc source to identify any options that are installed. Options are identified by number A 0 indicates no options are installed. Query Syntax *OPT? Returned Parameters <AARD> *RCL WARNING: Recalling a previously stored state may place hazardous voltages at the dc source output. This comma[...]
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4 - Language Dictionary 72 Table 4-8. *RST Settings CAL:STAT OFF [SOUR:]CURR 10% of MAX* DIG:DATA 0 [SOUR:]CURR:TRIG 10% of MAX* DISP:STAT ON [SOUR:]CURR:PROT:STAT OFF DISP:MODE NORM [SOUR:]LIST:COUN 0 DISP:TEXT ‘ ‘ [SOUR:]VOLT 0 INIT:CONT OFF [SOUR:]VOLT:TRIG 0 OUTP OFF [SOUR:]VOLT:PROT MAX* OUTP:DFI OFF TRIG:ACQ:COUN:CURR 1 OUTP:DFI:SOUR OFF [...]
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Language Dictionary - 4 73 Trigger Commands Trigger commands consist of trigger and initiate commands. Trigger commands control the remote triggering of the dc source . Trigger commands (and Initate commands) are referenced either by name or by number. The correspondence between names and numbers is: Sequence Number Sequence Name Description 1 (the[...]
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4 - Language Dictionary 74 TRIGger When the transient trigger subsystem is initiated, this command generates a trigger signal. The trigger will then: 1. Initiate a pending level change as specified by CURRent:TRIGger or VOLTage;TRIGger. 2. Clear the WTG bit in the Status Operation Condition register after both transient and acquire trigger sequence[...]
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Language Dictionary - 4 75 TRIGger:SEQuence2:COUNt:CURRent TRIGger:ACQuire:COUNt:CURRent Agilent 66312A, 66332A Only This command sets up a successive number of triggers for measuring current data. With this command, the trigger system needs to be initialized only once at the start of the acquisition period. After each completed measurement, the in[...]
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4 - Language Dictionary 76 TRIGger:SEQuence2:HYSTeresis:CURRent TRIGger:ACQuire:HYSTeresis:CURRent Agilent 66312A, 66332A Only This command defines a band around the trigger level through which the signal must pass before an internal measurement can occur. The band limit above and below the trigger level is one half of the hysteresis value added to[...]
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Language Dictionary - 4 77 TRIGger:SEQuence2:LEVel:CURRent TRIGger:ACQuire:LEVel:CURRent Agilent 66312A, 66332A Only This command sets the trigger level for internally triggered current measurements. A positive current trigger occurs when the current level changes from a value less than the lower hysteresis band limit to a value greater than the up[...]
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4 - Language Dictionary 78 TRIGger:SEQuence2:SLOPe:CURRent TRIGger:ACQuire:SLOPe:CURRent Agilent 66312A, 66332A Only This command sets the slope of an internally triggered current measurement. POSitive triggering occurs on the rising edge. NEGative triggering occurs on the falling edge. EITHer triggering occurs on either edge. Command Syntax TRIGge[...]
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Language Dictionary - 4 79 TRIGger:SEQuence2:SOURce TRIGger:ACQuire:SOURce Agilent 66312A, 66332A Only These commands select the trigger source for measurement triggers as follows: BUS GPIB device, *TRG, or <GET> (Group Execute Trigger) INTernal trigger is generated internally when the measured waveform crosses the trigger level with the sele[...]
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81 A SCPI Conformance Information SCPI Version The Agilent Dynamic Measurement DC Source conforms to SCPI Version 1995.0. SCPI Confirmed Commands ABOR SENS:SWE:POIN CAL:DATA SENS:SWE:TINT CAL:STAT STAT:OPER[:EVEN]? DISP[:WIND][:STAT] STAT:OPER:COND? DISP[:WIND]:TEXT[:DATA] STAT:OPER:ENAB INIT[:IMM]:SEQ | NAME STAT:OPER:NTR INIT:CONT:SEQ | NAME STAT[...]
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83 B Compatibility Language Introduction The Agilent power supplies covered by this manual are programmatically compatible with the HP/Agilent 6632A, 6633A, and 6634A dc power supplies. This means that by using COMPatibility language mode you can program these newer dc sources over the GPIB using COMPatibility commands. To switch from SCPI commands[...]
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B - Compatibility Language 84 Table B-2. COMPatibility Commands Compatibility Command Description Similar SCPI Command ASTS? This command reads the contents of the accumulated status register, which stores any bit condition entered in the status register since the accumulated status register was last read, regardless of whether the condition still [...]
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Compatibility Language - B 85 Table B-2. COMPatibility Commands (continued) Compatibility Command Description Similar SCPI Command OVSET <n> This command programs the overvoltage protection. See Table 4-3 for the programming range of this command. Initial condition: MAX VOLT:PROT POL 0 | 1 Only applies to units with Option 760. This command s[...]
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B - Compatibility Language 86 Table B-2. COMPatibility Commands (continued) Compatibility Command Description Similar SCPI Command UNMASK xxx These commands determine the conditions that will set bits in the fault register, allowing the operator to define the conditions that will be reported as fault Fault conditions can be enabled by sending the d[...]
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Compatibility Language - B 87 STAT US 1 2 16 64 128 CV +CC UNR OT not used OC ERR INH OV 4 512 -CC FAST 8 32 256 1024 2048 REGISTER NORM STAT US 1 2 16 64 128 4 512 8 32 256 1024 2048 REGISTER ACC UMU LA TED MASKUS 1 2 16 64 128 4 512 8 32 256 1024 2048 REGISTER CV +CC UNR OT not us ed OC ERR INH OV -CC FAST NORM FAUL T 1 2 16 64 128 4 512 8 32 256[...]
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89 C Error Messages Error Number List This appendix gives the error numbers and descriptions that are returned by the dc source. Error numbers are returned in two ways: ♦ Error numbers are displayed on the front panel ♦ Error numbers and messages are read back with the SYSTem:ERRor? query. SYSTem:ERRor? returns the error number into a variable [...]
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C - Error Messages 90 Table C-1. Error Numbers (continued) Error Number Error String [Description/Explanation/Examples] –141 Invalid character data [bad character, or unrecognized] –144 Character data too long –148 Character data not allowed –150 String data error –151 Invalid string data [e.g., END received before close quote] –158 Str[...]
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Error Messages - C 91 Table C-1. Error Numbers (continued) Error Number Error String [Description/Explanation/Examples] 213 Ingrd receiver buffer overrun 216 RS-232 receiver framing error 217 RS-232 receiver parity error 218 RS-232 receiver overrun error 220 Front panel uart overrun 221 Front panel uart framing 222 Front panel uart parity 223 Front[...]
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93 D Example Programs Introduction The example programs in this section are intended to show how some of the same dc source functions can be programmed to each of the following GPIB interfaces: 1. HP Vectra PC controller with Agilent 82335A GPIB Interface Command Library 2. IBM PC controller with National Instuments GPIB-PCII Interface/Handler 3. A[...]
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D - Example Programs 94 Your application program will not include the dc source’s symbolic name and GPIB address. These must be specified during configuration (when you run IBCONF.EXE). Note that the primary address range is from 0 to 30 but any secondary address must be specified in the address range of 96 to 126. The dc source expects a message[...]
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Example Programs - D 95 1085 ’ 1090 ’Query dc source outputs CURRENT?" :GOSUB 2000 :GOSUB 3000 1100 VOUT = OUTPUTS(1) 1105 IOUT = OUTPUTS(2) 1110 PRINT "The output levels are "VOUT" Volts and "IOUT" Amps" 1115 ’ 1120 ’Program triggered current level to value insufficient to maintain 1125 ’supply within i[...]
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D - Example Programs 96 Example 2. IBM Controller Using National Interface 990 ’---------------------- Merge DECL.BAS here ------------------------ 1000 ’DC Source Variable = PS% ; Stand-Alone Address = 706 1005 CODES$=SPACE$(50):MODE$=SPACE$(5):OEVENT$=SPACE$(20) 1010 D$=SPACE$(60):OUTPUT$=SPACE$(40):BDNAME$="PS%" 1015 DIM OUTPUT(2) [...]
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Example Programs - D 97 1225 ’ 1230 ’Clear status circuit 1235 CODES$="*CLS" :GOSUB 2000 1240 FOR I=1 TO 50 :NEXT I ’Wait for supply to clear 1245 ’ 1250 ’Disable output and save present state to location 2 1255 CODES$ = "OUTPUT OFF;*SAV 2" :GOSUB 2000 1260 END 1265 ’ 2000 ’Send command to dc source 2005 CALL IBWRT[...]
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D - Example Programs 98 Example 3. Controller Using BASIC 1000 !Dc source at stand-alone address = 706 1005 OPTION BASE 1 1010 DIM Codes$[80],Response$[80],Mode$[32] 1015 ! 1020 !Program dc source to CV mode with following voltage and current 1025 OUTPUT 706;"VOLTAGE MAX;CURRENT MAX" 1030 ! 1035 !Query dc source outputs and print to scree[...]
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99 INDEX —A— AARD, 16 ABORT, 73 ACDC, 52 —B— bus, 79 —C— calibration commands, 44 CAL CURR, 44 CAL CURR MEAS AC, 44 CAL CURR NEG, 44 CAL DATA, 45 CAL LEV, 45 CAL PASS, 45 CAL SAVE, 45 CAL STAT, 46 CAL VOLT, 46 CAL VOLT PROT, 46 calibration commands:CAL CURR MEAS LOWR ", 44 character strings, 16 combine commands common commands, 14 [...]
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Index 100 —H— hanning, 54 header, 15 long form, 15 short form, 15 history, 2 HP 8235A driver, 93 HP BASIC controllers, 94 HP-IB address, 10 capabilities of the dc source, 10 triggers, 26 —I— INH, 36 initialization, 19 initiate commands, 73 INIT CONT NAME, 73 INIT CONT SEQ, 73 INIT NAME, 73 INIT SEQ, 73 initiating measurement trigger system,[...]
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Index 101 —R— rectangular, 54 remote inhibit, 36 returning voltage or current data, 24 RI, 36 rms measurements, 24 root specifier, 15 RQS bit, 35 RS-232 capabilities of the dc source, 10 data format, 10, 12 data terminator, 16 flow control, 11 RTS-CTS, 11 —S— safety guidelines, 2 SCPI command completion, 17 command syntax, 39 command tree, [...]
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Index 102 —V— varying voltage or current sampling, 29 voltage, 20 maximum, 20 measurements, 23 —W— waiting for measurement results, 27 —X— XON-XOFF, 11[...]
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Manual Updates The following updates have been made to this manual since the December 1998 printing indicated on the Printing History page. 11/9/99 Information about installing VXI plug&play Power Products Instrument Drivers has been included in the beginning of chapter 2. 1/4/00 All references to HP have been changed to Agilent. All references[...]