Keithley 2303 User Manual Download

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GPIB Operation

•

Introduction

—

Describes the IEEE-488 (GPIB) standards used by the power supply.

•

GPIB bus connections

— Shows how to connect the power supply to the GPIB.

•

Primary address

— Explains how to check and/or change the primary address for the bus.

•

Output format

— Covers the output formats for readings sent over the bus, and output

types for the response to *IDN?.

•

General bus commands

— Documents general bus commands that pertain to all GPIB

instruments.

•

Programming syntax

— Provides syntax information for sending command and SCPI

commands over the bus.

Summary of Contents for 2303

Page 1: ...Model 2303 2303B 2303 PJ High Speed Power Supply User s Manual A G R E A T E R M E A S U R E O F C O N F I D E N C E...

Page 2: ...DIRECT INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OF ITS INSTRUMENTS AND SOFTWARE EVEN IF KEITHLEY INSTRUMENTS INC HAS BEEN ADVISED IN ADVANCE OF THE POSSIBILITY OF S...

Page 3: ...Model 2303 2303B 2303 PJ High Speed Power Supply User s Manual 1998 Keithley Instruments Inc All rights reserved Cleveland Ohio U S A Sixth Printing August 2003 Document Number 2303 900 01 Rev F...

Page 4: ...of the manual are incorporated into the new Revision of the manual Each new Revision includes a revised copy of this print history page Revision A Document Number 2303 900 01 January 1998 Revision B...

Page 5: ...cted to mains voltage or to voltage sources with high transient over voltages Measurement Category II connections require protection for high transient over voltages often as sociated with local AC ma...

Page 6: ...ages The symbol indicates a connection terminal to the equipment frame The WARNING heading in a manual explains dangers that might result in personal injury or death Always read the associated informa...

Page 7: ...les to navigate MENU 1 13 SCPI programming 1 13 2 Basic Power Supply Operation Test connections 2 2 Outputting voltage and current 2 3 Setting output voltage and current limit 2 3 Operate 2 8 SCPI pro...

Page 8: ...t trigger level pulse current 3 6 SCPI programming 3 7 Pulse current digitization 3 9 Programming examples 3 10 4 Long Integration Measurements Overview 4 2 Integration time 4 3 Trigger edge 4 3 Trigg...

Page 9: ...ront panel aspects of GPIB operation 6 6 Remote indicator and LOCAL key 6 6 Error and status messages 6 6 Programming syntax 6 7 Command words 6 7 Program messages 6 10 Response messages 6 12 Message...

Page 10: ...ut queue 7 17 Error queue 7 18 8 Common Commands Overview 8 2 IDN identification query 8 3 OPC operation complete 8 3 OPC operation complete query 8 3 SAV NRf save 8 4 RCL NRf recall 8 4 RST reset 8 4...

Page 11: ...ORMat BORDer name 10 6 SYSTem subsystem 10 7 SYSTem POSetup name 10 7 11 SCPI Tables SCPI command subsystems reference tables 11 2 A Specifications B Error and Status Messages C Emulation Commands HP...

Page 12: ...measurement 3 2 5 Relay Control Relay control 5 3 Miniature phono plug 5 4 6 GPIB Operation IEEE 488 connector 6 2 7 Status Structure Status model structure 7 3 16 bit status register 7 5 Status byte...

Page 13: ...witchcraft connection accessories 5 4 SCPI command output relay control 5 5 6 GPIB Operation General bus commands 6 4 7 Status Structure Common and SCPI commands reset registers and clear queues 7 4 C...

Page 14: ...DISPlay command summary 11 3 FORMat command summary 11 3 OUTPut command summary 11 3 SENSe command summary 11 4 SOURce command summary 11 6 STATus command summary 11 7 SYSTem command summary 11 8 C E...

Page 15: ...Explains how to use the optional Model 2304 DISP Display Module Power up Covers line power connection fuse replacement and the power up sequence Display modes Explains the four display modes of the p...

Page 16: ...nd terms that may be found on an instrument or in its manual If a screw is present connect it to safety earth ground using the wire recommended in the user documentation The symbol on an instrument in...

Page 17: ...Model 2303 2303B 2303 PJ User s Manual P N 2303 900 00 Model 2303 2303B 2303 PJ Service Manual P N 2303 902 00 If an additional manual is required order the appropriate manual package The manual pack...

Page 18: ...Model 2304 DISP remote display module WARNING NO INTERNAL OPERATOR SERVICABLE PARTS SERVICE BY QUALIFIED PERSONNEL ONLY WARNING NO INTERNAL OPERATOR SERVICABLE PARTS SERVICE BY QUALIFIED PERSONNEL ON...

Page 19: ...A range display resolution is 100 A and on the 500mA range resolution is 0 01mA 10 A The power supply also has a digital voltmeter DVM that is independent of the power supply circuit The DVM can measu...

Page 20: ...isconnecting the 2304 DISP remote display allow a few sec onds for the power supply to recognize the action Fast repeated connects discon nects of the remote display may cause the power supply to hang...

Page 21: ...e way out of the power module 3 Snap the fuse out of the drawer and replace it with the same type 250V 2 0A 5 20mm time lag The Keithley part number is FU 81 CAUTION For continued protection against f...

Page 22: ...TION This mode is used to display average current measure ments of a pulse or pulses using the long integration method See Section 4 for details A display mode is selected as follows 1 Press the DISPL...

Page 23: ...y and use the POWER ON SETUP item to specify the power on setup see Setups under Default set tings for details Default settings The power supply can be set to power on to the factory default condition...

Page 24: ...power up RST SAV0 SAV4 output off or SAV5 SAV9 output on or off Note that SAV5 SAV9 are not available for the Model 2303 PJ When powering up to the SAV0 SAV1 SAV2 SAV3 or SAV4 setup the output will be...

Page 25: ...2303 2303B and 2303PJ SAV0 output off SAV1 output off SAV2 output off SAV3 output off SAV4 output off Models 2303 and 2303B SAV5 SAV0 setup with output on or off SAV6 SAV1 setup with output on or off...

Page 26: ...ry RST SAV0 SAV4 Select power on setup RST SAV0 SAV4 Calibrate Model 2303 2303B 2303 PJ see Service Manual Select current limit mode Limit Trip Limit Relay or Trig Relay Close ONE or open ZERO relay c...

Page 27: ...d with front panel operation throughout this man ual SCPI commands are listed in tables and additional information that pertains exclusively to remote operation is provided after each table Also the S...

Page 28: ...1 14 Getting Started...

Page 29: ...Covers the Actual V and I display mode which is used to measure and display the actual voltage and current being delivered to the DUT Independent voltage measurements DVM Input Explains how to use the...

Page 30: ...f the connector Once the connector is wired up plug it into the rear panel and tighten the captive retaining screws Figure 2 1 shows typical power supply connections to the device under test NOTE Sour...

Page 31: ...e and current limit The output capabilities of the power supply are shown in Figure 2 2 Figure 2 2A shows the output capabilities for the 5A and AUTO measurement ranges Notice that when voltage is set...

Page 32: ...e same when switching from the 5A range to the 500 milliamps range Current ranges The power supply current ranges are listed in Table 2 1 With auto range selected the instru ment will automatically go...

Page 33: ...turns off ZERO when the unit is not in current limit TRIP RELAY mode With the trip relay mode Figure 2 4 the relay output turns on and the power supply output turns off when the current limit is trip...

Page 34: ...g around the set cur rent limit depending on how rapidly the current is fluctuating around the current limit point Figure 2 3 Relay control mode limit relay Figure 2 4 Relay control mode trip relay Cu...

Page 35: ...red current limit and press SET to exit from the output settings mode Editing shortcuts With the output OFF the following editing shortcuts can be used Output voltage can be quickly set to the maximum...

Page 36: ...ed with the output off SCPI programming outputting voltage and current The commands to output voltage and current are summarized in Table 2 3 The Outputting and reading back V and I programming exampl...

Page 37: ...lue is above 3A setting the output voltage above 9V will automatically default the current limit to 3A 2 The response to VOLTage is affected by the GPIB output format For decimal formats the response...

Page 38: ...command pa rameters may be used to override the relay state and cause the relay state not to track the current limit state For LIMRELAY this condition may occur only momentary while the limiting cond...

Page 39: ...1 shows the menu structure Rules to navigate the menu follow the table Current range Current range is linked with current limit Therefore as a general rule the user selects the current range before s...

Page 40: ...ected the instrument measures the voltage applied to the input of the digital voltmeter DVM 3 The PCURrent and LINTegration parameters for FUNCtion which are not listed in Table 2 5 select the pulse c...

Page 41: ...key until the blinking stops The in strument can now display measured readings 1 Press the DISPLAY key to access the display menu 2 Press the or k ey until DVM INPUT is displayed 3 Press ENTER NOTE F...

Page 42: ...in the current sink mode safely maintain the following condition Ensure that the test circuit voltage remains greater than the programmed supply voltage Ensure that the maximum sink current falls wit...

Page 43: ...NPLC 2 Set integration rate to 2 PLC SENS AVER 5 Set average reading count to 5 OUTP ON Turn on the power supply output READ Trigger 5 voltage measurement conversions and return the average of those 5...

Page 44: ...2 16 Basic Power Supply Operation...

Page 45: ...easurement procedure Provides the step by step procedure to per form pulse current measurements from the front panel SCPI programming Documents the commands used to program the instrument for pulse cu...

Page 46: ...surements of a pulse are illustrated in Figure 3 1 The high measurement is triggered on the rising edge of the pulse and an integration is performed for the time specified for the high measurement The...

Page 47: ...e detected pulse and sets appropriate integration times The pulse average time is set to the sum of the measured high and low times The three integration times apply for all subsequent pulse measureme...

Page 48: ...s are performed on which ever range the instrument is on when the pulse current measurement function is selected Current range is linked to current limit Therefore as a general rule the user selects t...

Page 49: ...ge For the 5A range the trigger level can be set from 0 to 5A in 5mA steps For the 500mA range the trigger level can be set from 0 to 500mA in 0 5mA steps However there is trigger hysteresis built int...

Page 50: ...settings are not appropriate for detecting pulses The last valid pulse is shown if the pulse disappears while taking background readings and no change in pulse settings was made Pulses are not detecte...

Page 51: ...ation time in sec for high pulse measurements 33 33e 6 to 0 8333 Specify integration time in sec for low pulse measurements 33 33e 6 to 0 8333 Specify integration time in sec for average pulse measure...

Page 52: ...ENSe PCURrent TIME The response for the query commands HIGH LOW and AVERage is affected by the GPIB output format For decimal formats the response has four decimal places otherwise it is in exponentia...

Page 53: ...er level and trigger delay for pulse current measurements also apply for pulse current digitization However the trigger delay can be set up to five seconds SENS PCUR SYNC DEL NRf NRf 0 to 5 Trigger di...

Page 54: ...SYNC ON Enable trigger synchronization SENS PCUR MODE HIGH Configure to measure peak pulse READ Trigger 10 measurement conversions and return the average of those 10 conversions Pulse current digitiz...

Page 55: ...strument for long inte gration measurements Long integration measurement procedure Provides the step by step procedure to perform long integration measurements from the front panel SCPI programming Do...

Page 56: ...er pulses the long integration technique uses a filtered and sam pled measurement of the waveform This gives the power supply the ability to measure signals with periods up to 60 seconds The filtering...

Page 57: ...the set integration time does not extend into the third pulse Trigger edge A pulse edge can be used to trigger the start of the measurement Either a RISING pulse edge or a FALLING pulse edge can start...

Page 58: ...operation there is a fast readings mode that can be used with long integra tion functionality see the FAST command in Table 4 1 Measurement configuration NOTE Current range is selected from the CURREN...

Page 59: ...ed the instrument continues to search for a pulse Trigger edge and trigger level Use the following items of the LONG INTEGRATION menu item to set trigger edge and trigger level Trigger edge A pulse ed...

Page 60: ...odes see Display modes in Section 1 Long integration measurement procedure The following steps summarize the procedure to perform long integration current measurements 1 For Model 2303 PJ select the d...

Page 61: ...y While readings are not being taken the bottom line displays the last valid long integration reading or dashes if no pulse detected before being stopped Determining correct trigger level long integra...

Page 62: ...e Section 6 to select the output format Table 4 1 SCPI commands long integration measurements Commands Description Default Ref SENSe FUNCtion LINTegration LINTegration TIME NRf AUTO TLEVel NRf TLEVel...

Page 63: ...for pulses when it receives a TLEVel command and will not take background readings between user trigger commands Therefore the pulse trigger timeout bit in the measurement event register is not update...

Page 64: ...4 10 Long Integration Measurements...

Page 65: ...mmarizes how the power supply can be used to control an external relay Connections Explains how to connect an external relay circuit to the power supply Controlling the relay Explains how to control t...

Page 66: ...ce is used to drive the external relay the relay circuit must not exceed 100mADC Also note that a protection diode is required for the relay circuit The protection diode pro vides a current dissipatio...

Page 67: ...upply Relay Control 15VDC Max Protection Diode Chassis Ground External Source A External Source Relay Relay Power Supply Relay Control Protection Diode 5VDC Internal Source 5VDC 5 Chassis Ground B Int...

Page 68: ...phono plugs from the patch cord One end of the modified patch cord plugs into the phono jack on the power supply and the unterminated end is hard wired to the external relay circuit s Another alternat...

Page 69: ...avigate the menu follow the table 1 From the menu select OUTPUT RELAY 2 Select the desired relay control option ONE or ZERO Selecting ONE closes the relay control circuit to energize the relay while Z...

Page 70: ...5 6 Relay Control...

Page 71: ...dress Explains how to check and or change the primary address for the bus Output format Covers the output formats for readings sent over the bus and output types for the response to IDN General bus co...

Page 72: ...d by electromagnetic radiation use only shielded IEEE 488 cables Available shielded cables from Keithley are Models 7007 1 and 7007 2 For a multi unit test system you can daisy chain the instruments t...

Page 73: ...be returned as 1 00000000E 01 For a decimal format it would be returned as 10 00 2 decimal places 10 000 3 decimal places or 10 0000 4 decimal places The output type KEITHLEY or FLUKE can be set for...

Page 74: ...te You can restore normal front panel operation by pressing the LOCAL key IFC interface clear The IFC command is sent by the controller to place all instruments on the bus in the local talker listener...

Page 75: ...ommand A DCL does not affect instrument settings and stored data SDC selective device clear The SDC command is an addressed command that performs essentially the same function as the DCL command Howev...

Page 76: ...ddressed to listen with REM true before the R indicator turns on When the instrument is in remote all front panel keys except for the LOCAL key are locked out The LOCAL key cancels the remote state an...

Page 77: ...d in brackets These brackets are used to denote an optional command word that does not need to be included in the program message For example FORMat DATA These brackets indicate that DATA is implied o...

Page 78: ...numbers for a list Example STATus QUEue ENABle 110 222 Enable errors 110 thru 222 Angle Brackets Angle brackets are used to denote a parameter type Do not in clude the brackets in the program message...

Page 79: ...ESe is illegal and will generate an error The command will not be executed Short form rules Use the following rules to determine the short form version of any SCPI command or parameter If the length o...

Page 80: ...at and moves down the command levels until the command is executed Multiple command messages You can send multiple command messages in the same program message as long as they are separated by semicol...

Page 81: ...you start over at the root command Using common and SCPI commands in the same message Both common commands and SCPI commands can be used in the same message as long as they are separated by semicolons...

Page 82: ...sent and are separated by semicolons Items within the same query are separated by commas The following example shows the response message for a program message that contains four single item query com...

Page 83: ...er in the status structure Status byte and service request SRQ Explains how to program the status byte to generate service requests SRQs Shows how to use the serial poll sequence to detect SRQs Status...

Page 84: ...r the RQS MSS bit will set to indicate that an SRQ has occurred Status register sets A typical status register set is made up of a condition register an event register and an event enable register A c...

Page 85: ...Logical OR Always Zero Operation Complete Query Error Device Specific Error Execution Error Command Error User Request Power On OPC QYE DDE EXE CME URQ PON ESR ESE MSB MSB 12 13 14 15 Always Zero Even...

Page 86: ...Operation event register Measurement event register Questionable event register STATus PRESet STATus subsystem Reset all bits of the following enable registers to 0 Operation event enable register Me...

Page 87: ...to determine the decimal value is to add up the decimal weights for the bits that you wish to set Note that Figure 7 2 includes the decimal weight for each register bit To set bits B4 B3 and B1 the p...

Page 88: ...EAV B2 B1 B0 OR SRE SRE Status Byte Register Service Request Enable Register OSB Operation Summary Bit MSS Master Summary Status RQS Request for Service ESB Event Summary Bit MAV Message Available QS...

Page 89: ...curred Bit B6 request service rqs master summary status MSS Set bit indicates that an enabled summary bit of the status byte register is set Bit B7 operation summary OSB Set summary bit indicates that...

Page 90: ...ower supply If an SRQ does not occur bit B6 RQS of the status byte register will remain cleared and the program will sim ply proceed normally after the serial poll is performed If an SRQ does occur bi...

Page 91: ...mand sequence enables EAV error available sends an invalid command and then reads the status byte register CLS Clear Status Byte Register SRE 4 Enable EAV BAD COMMand Send an invalid command to genera...

Page 92: ...ice dependent error DDE Set bit indicates that an instrument operation did not execute properly due to some internal condition Bit B4 execution error EXE Set bit indicates that the power supply detect...

Page 93: ...ME Command Error EXE Execution Error DDE Device Dependent Error QYE Query Error OPC Operation Complete Logical AND OR Logical OR OPC B0 128 27 32 25 16 24 8 23 4 22 1 20 Decimal Weights URQ B6 B15 B8...

Page 94: ...n PSS This bit indicates that the output has turned off due to an overload and or overheat condition This typically indicates that the user tried to exceed the power output capability of the unit ___...

Page 95: ...Bit B9 buffer full BF Set bit indicates that the specified number of readings average count have been taken ___ BF ___ RAV PTT ROF ___ B15 B10 B9 B8 B6 B5 B4 B3 B2 B0 ___ BF ___ RAV PTT ROF ___ B15 B1...

Page 96: ...d during the power up sequence This error will clear after successful calibration of the power supply OR Qusetionable Event Enable Register Cal Calibration Summary Logical AND OR Logical OR Decimal We...

Page 97: ...t remains latched to 1 until the register is reset Reading an event register clears the bits of that register CLS resets all four event registers The commands to read the event registers are listed in...

Page 98: ...ter can be reset to 0 by sending the 0 parameter value with the appropriate enable command i e STATus OPERation ENABle 0 Table 7 5 Common and SCPI commands event enable registers Command Description D...

Page 99: ...ges Error Queue Used to hold error and status messages The power supply status model Figure 7 1 shows how the two queues are structured with the other registers Output queue The output queue holds dat...

Page 100: ...ower up the error queue is empty When empty the message 0 No Error is placed in the queue Messages in the error queue are preceded by a code number Negative numbers are used for SCPI defined messages...

Page 101: ...QUEue NEXT ENABle list ENABle DISable list DISable CLEar STATus subsystem Read error queue Read and clear oldest error status message Specify error and status messages for error queue Read the enable...

Page 102: ...7 20 Status Structure...

Page 103: ...8 CommonCommands...

Page 104: ...st query Wait to continue command Clears all event registers and error queue Program the standard event enable register Read the standard event enable register Read the standard event enable register...

Page 105: ...t format the code is FLUKE PM2832 11 0 V1 0 B OPC operation complete Sets OPC bit OPC operation complete query Places a 1 in output queue When OPC is sent the OPC bit in the standard event register wi...

Page 106: ...SYSTem POSetup in Section 10 for details D RST reset Return power supply to RST defaults When the RST command is sent the power supply performs the following operations 1 Returns the instrument to the...

Page 107: ...l previous commands are completed Effectively the WAI command is a no op no operation for the power supply and therefore does not need to be used Two types of device commands exist Sequential commands...

Page 108: ...8 6 Common Commands...

Page 109: ...9 Signal Oriented Measurement Commands...

Page 110: ...array of readings After sending either one of these com mands and addressing the power supply to talk the averaged reading or reading array is sent to the computer These commands do not affect the ins...

Page 111: ...s The averaged read ing or reading array is sent to the computer when the power supply is addressed to talk The aver aged reading is displayed on the front panel The front panel does not show an array...

Page 112: ...MEASure command is sent the specified function is selected and then the READ is executed When the MEASure ARRay command is sent the specified function is selected and the READ ARRay command is execut...

Page 113: ...Play subsystem Covers the SCPI commands that are used to control the display FORMat subsystem Covers the SCPI commands to configure the format that read ings are sent over the bus SYSTem subsystem Cov...

Page 114: ...display DISPlay WINDow 1 TEXT DATA a Parameters a ASCII characters for message Types String aa a or aa a Indefinite Block 0aa a This command defines a text message for the display A message is made u...

Page 115: ...TEXT STATe b Control message Parameters b 0 or OFF Disable text message 1 or ON Enable text message This command enables or disables the text message mode When enabled the text message is displayed I...

Page 116: ...and SENSe subsystem and signal ori ented measurement commands for more information NOTE Regardless of which data format for output strings is selected the power supply will only respond to input comma...

Page 117: ...es to be transferred can be calculated as follows Bytes 2 Rdgs 4 1 for SREAL Bytes 2 Rdgs 8 1 for DREAL where 2 is the number of bytes for the header 0 Rdgs is the number of readings to be transferred...

Page 118: ...te 2 Byte 1 Single precision Byte 8 Byte 7 Byte 1 Double precision The 0 header is not affected by this command The header is always sent at the beginning of the data string for each measurement conve...

Page 119: ...o SAV1 output on or off SAV7 Power up to SAV2 output on or off SAV8 Power up to SAV3 output on or off SAV9 Power up to SAV4 output on or off NOTE SAV5 SAV9 are not available for the Model 2303 PJ Tabl...

Page 120: ...utput off For the Models 2303 and 2303B the SAV5 9 parameters can be used to power up the power supply with the output on It will assume the corresponding SAV0 4 setup including the saved state of the...

Page 121: ...11 SCPITables...

Page 122: ...message Do not use brackets in the program message Angle brackets are used to indicate parameter type Do not use angle brackets in the program message The Boolean parameter b is used to enable or disa...

Page 123: ...ay ENABle b ENABle WINDow 1 TEXT DATA a DATA STATe b STATe Enable or disable front panel display Query state of display Path to locate message to display Control user text message Define ASCII message...

Page 124: ...range Path to configure the pulse current measurement function Specify the average count for pulse current measurements measurements 1 to 100 or 1 to 5000 pulse current digitization Query average cou...

Page 125: ...measurements Set integration time in seconds X to 60 where X is 0 850 for 60Hz or 0 840 for 50Hz Query integration time Power supply sets integration time Models 2303 and 2303B Set trigger level 0 to...

Page 126: ...nt LIMit Path to configure current limit VALue NRf Specify current limit value in amps 0 to 5 100 A resolution 0 25 VALue Query current limit value TYPE name Select current limit type LIMit TRIP LIM T...

Page 127: ...EVENt ENABle NRf ENABle CONDition PRESet QUEue NEXT ENABle list ENABle DISable list DISable CLEar Path to control the measurement event registers Read the event register Program the enable register Re...

Page 128: ...I SYSTem VERSion ERRor CLEar LFRequnecy POSetup name POSetup Query SCPI version level Read and clear oldest message in error queue Clears error queue Query power line frequency setting Select power on...

Page 129: ...A Specifications...

Page 130: ...d due to load current change DC CURRENT 2Years 23 C 5 C OUTPUT CURRENT 0 9V 5A max 9V 15V 3A max not intended to be operated in parallel COMPLIANCE ACCURACY 0 16 5mA 5 PROGRAMMED COMPLIANCE RESOLUTION...

Page 131: ...100V 240V AC 50 or 60Hz auto detected at power up WARRANTY Two years parts and labor on materials and workmanship EMC Conforms with European Union Directive Directive 89 336 EEC EN 55011 EN 50082 1 EN...

Page 132: ...A 4 Specifications...

Page 133: ...B ErrorandStatusMessages...

Page 134: ...y lost Configuration memory lost Expression error Hardware missing Data corrupt or stale Out of memory Illegal parameter value Too much data Parameter data out of range Settings conflict Parameter err...

Page 135: ...umber Numeric data error Header suffix out of range Undefined header Program mnemonic too long Header separator error Command header error Missing parameter Parameter not allowed GET not allowed Data...

Page 136: ...error 5 Amp source cal measure error Models 2303 and 2303B 5mA source cal prepare error Model 2303 PJ 5mA source cal prepare error Models 2303 and 2303B 5mA source cal measure error Model 2303 PJ 500m...

Page 137: ...C EmulationCommands...

Page 138: ...this command is sent If the output is off the display will update when the output is turned on NOTE If the present current limit setting is greater than 3A setting output voltage greater than 9V will...

Page 139: ...rement range selected The maximum al lowable current limit is 0 6A Programming resolution is 1 25mA OCP b Select current limit type Parameters b 1 or ON Select TRIP current limit type 0 or OFF Select...

Page 140: ...tage IOUT Trigger and return an output current reading Description When this command is sent the power supply is triggered to measure the out put current Before the measurement is performed the 5A mea...

Page 141: ...e power supply without causing an error but are in effect NOOPs no operations The query command will return a value but it is meaningless The complete SCPI command paths for these commands are shown i...

Page 142: ...b 1 or ON Turn output on 0 or OFF Turn output off Query INSTrument STATe Query state of the power supply output Description This command is used to turn the power supply output on or off Note that DV...

Page 143: ...D Models2303and2303B GPIB488 1Protocol...

Page 144: ...e or keys to display PROTOCOL and press ENTER to display the present PROTOCOL setting 4 Use the or keys to display 488 1 and press ENTER to select for 488 1 protocol 5 Use the MENU key to back out of...

Page 145: ...will clear the blinking R that indicates remote mode operation Protocol differences The following information covers the differences between the 488 1 protocol and the SCPI protocol Message exchange...

Page 146: ...on talk functionality has been added for the 488 1 protocol If a query has not been received by the instrument the power supply will automatically assume a READ command has been sent when it is addre...

Page 147: ...Unstable Overload Will not read applied input Calibration only Certificate of calibration required Data required attach any additional sheets as necessary Show a block diagram of your measurement inc...

Page 148: ...lay subsystem 10 2 DISPlay TEXT DATA a 10 2 DISPlay TEXT STATe b 10 3 Display modes 1 8 DVM input display mode 2 13 DVM measurements 2 15 E Emulation commands C 1 Error queue 7 18 Error and status mes...

Page 149: ...age and current 2 3 Overview 3 2 4 2 5 2 7 2 8 2 9 2 P Power supply overview 1 4 Power up 1 6 Power up sequence 1 7 Primary address 6 3 Program messages 6 10 Programming and reading registers 7 5 Prog...

Page 150: ...t limit 2 3 Setups Save Power on and Recall 1 10 Signal oriented measurement commands 9 1 Sink operation 2 14 SPE SPD serial polling 6 5 Specifications 1 2 A 1 Status byte and service request SRQ 7 6...

Page 151: ......

Page 152: ...60 11 77 26 GERMANY Landsberger Strasse 65 82110 Germering 089 84 93 07 40 Fax 089 84 93 07 34 GREAT BRITAIN Unit 2 Commerce Park Brunel Road Theale Berkshire RG7 4AB 0118 929 75 00 Fax 0118 929 75 1...

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