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SCPI Commands

3–10

VX4237 Digital Multimeter Module User Manual

CALibration Subsystem

This subsystem is used to calibrate the ranges and functions of the DMM. This
will correct for any system errors due to drift or ageing effects.

Before any calibration can take place, two security levels must be set. First, there
is a switch on the DMM itself that must be set to CAL ENABLE. Having done
this, the command CALibration:SECure ON must be sent.

CALibration

:HIGH?

[<numeric_value>]

:LOW?

[<numeric_value>]

:SECure

<Boolean>

:SLFRequency?

There are no directly related commands however commands to configure the
DMM such as CONFigure, SENSe etc. are used in conjunction with CALibra-
tion.

See also Routine Calibration Procedure; section 8 of this handbook.

Syntax

Related Commands

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Summary of Contents for VX4237

Page 1: ...ess underutilized and idle equipment along with credit for buybacks and trade ins Custom engineering so your equipment works exactly as you specify Critical and expedited services Leasing Rentals Demo...

Page 2: ...ing The servicing instructions are for use by qualified personnel only To avoid personal injury do not perform any servicing unless you are qualified to do so Refer to the Safety Summary prior to perf...

Page 3: ...FARS 252 227 7013 or subparagraphs c 1 and 2 of the Commercial Computer Software Restricted Rights clause at FAR 52 227 19 as applicable Tektronix products are covered by U S and foreign patents issue...

Page 4: ...pply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this warranty a to repair damage re...

Page 5: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 6: ...uct support outside of North America contact your local Tektronix distributor or sales office Service Support Contact your local Tektronix distributor or sales office Or visit our web site for a listi...

Page 7: ...VX4237 Digital Multimeter Module User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 8: ...Basics 2 2 Low Level Interface 2 5 Trigger Combinations 2 7 Syntax and Commands Command Syntax 3 1 Functional Command Groups 3 3 SCPI Commands 3 3 Native Language Commands 3 7 IEEE 488 2 Common Comman...

Page 9: ...nce Verification D 1 User Uncertainty Calculations D 1 Using the Verification Work Sheets D 2 Preparation D 2 DC Voltage Check D 3 AC Voltage Check D 6 AC Linearity Check D 8 Resistance Check D 10 App...

Page 10: ...nal Ratings To avoid fire or shock hazard observe all ratings and markings on the product Consult the product manual for further ratings information before making connections to the product Do not app...

Page 11: ...se terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury hazard not immediately accessible as you read the markin...

Page 12: ...ering first aid and resuscitation is present Disconnect Power To avoid electric shock disconnect the mains power by means of the power cord or if provided the power switch Use Care When Servicing With...

Page 13: ...Service Safety Summary vi VX4237 Digital Multimeter Module User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 14: ...s controls and indicators appear in this manual exactly as they appear on the instrument Specific conventions for programming are given in the section Syntax and Commands This manual uses the followin...

Page 15: ...Preface viii VX4237 Digital Multimeter Module User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 16: ...Getting Started Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 17: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 18: ...5 digit resolution H External trigger with delay H Programmable external calibration The VX4237 is a message based device using A16 addressing Built In Test Equipment is provided by extensive self tes...

Page 19: ...environment See Figures 1 and 2 for their physical locations The Local Address switch must be correctly set to insure proper operation See Configuration for details of how to set the switches The fol...

Page 20: ...igure 1 1 for the physical location Each function module in a VXIbus System must be assigned a unique logical address from 1 to 255 decimal The base VMEbus address of the VX4237 is set to a value betw...

Page 21: ...r to program it Different manufacturers of IEEE 488 interface devices may have different algorithms for equating a logical address with an IEEE 488 address Consult the operating manual of the IEEE 488...

Page 22: ...Bus Grant Jumper Straps Slot BG0 BG1 BG2 BG3 1 J1011 J1012 J1013 J1014 2 J1021 J1022 J1023 J1024 3 J1026 J1027 J1028 J1029 4 J1031 J1032 J1033 J1034 5 J1036 J1037 J1038 J1039 6 J1041 J1042 J1043 J1044...

Page 23: ...consult the operating manual for the mainframe to determine how to install the module in that particular mainframe Setting the module s Logical Address switch defines the module s programming address...

Page 24: ...the VX4237 Module is inserted in a slot with any empty slots to the left of the module the VME daisy chain jumpers must be installed on the backplane in order for the VXI Module to operate properly Ch...

Page 25: ...re installing and operating the module Revision Level Serial No Mainframe Slot Number Switch Settings VXIbus Logical Address Switch FFh enables dynamic configuration Interrupt Level Select Switch Dyna...

Page 26: ...SFAIL INHIBIT This is done to prevent the resource manager from prematurely reporting the failure of a card 2 On completion of the interface self test SYSFAIL is de asserted If the test fails the SYSF...

Page 27: ...e SYSFAIL becomes active during power on hard or soft reset self test or if the module loses any of its power voltages When the mainframe Resource Manager detects SYSFAIL set it will attempt to inhibi...

Page 28: ...Operating Basics Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 29: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 30: ...a fully compatible VXIbus C size Digital Multimeter DMM that has the following measurement capabilities and features H Five DC voltage ranges from 200 mV 300 V with 100 nV resolution H Five AC voltag...

Page 31: ...until changed or the power is removed The LRN command can be used to query the VX4237 for its current settings More information on this command is provided in the Command Description sub section Instr...

Page 32: ...ecks if the Write Ready and DIR bits are true If they are the commander proceeds to the next step If not the commander continues to poll the Write Ready and DIR bits until they are true 2 The commande...

Page 33: ...evice dependent message interlocks are cleared This command will not H Change any settings or stored data within the instrument except as listed above H Interrupt analog input H Interrupt or affect an...

Page 34: ...uences that can take place between the DMM and its commander For the following descriptions assume that all power up sequences have been completed and that the DMM is in a quiescent state awaiting a c...

Page 35: ...om the DMM the commander must send another Byte Request command The VXI Specifications allow for two type of interrupt cycles response or event The two types are mutually exclusive and have to be sele...

Page 36: ...r ignored 211 Trigger ignored 211 Trigger ignored INIT 1 1 reading taken and stored Enables this mode Enables this mode Enables this mode Enables this mode 1 TRIG IMM will give an error or 211 Trigger...

Page 37: ...Operating Basics 2 8 VX4237 Digital Multimeter Module User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 38: ...Syntax and Commands Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 39: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 40: ...to separate parts of multiple commands colon Is a compound header separator and is used to separate multiple header mnemonics in a compound command comma Delimits command elements Command elements pri...

Page 41: ...Command Syntax 3 2 VX4237 Digital Multimeter Module User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 42: ...y the VX4237 Command Format Description ABORt Abort current trigger state and return to idle state CALibration HIGH numeric_value Perform full scale calibration using the numeric_value LOW numeric_val...

Page 43: ...s an input zero offset correction MEASure Configure the DMM and take a measurement and INITiates that measurement function parameter source_list function parameters source_list Parameters for the func...

Page 44: ...integration time related to line frequency setting LFRequency Query the line frequency setting STATus OPERation CON Dition Queries the operational condition register OPERation EVENt Queries the operat...

Page 45: ...ng DELay numeric_value Sets the time delay between the trigger and the measure AUTO Boolean Selects default delay settings DELay Queries the current trigger delay SOURce BUS IEXTernal HOLD IIMMediate...

Page 46: ...red calibration constants DCV Selects DC voltage measurement mode and sets the range resolution and filter DDQ Recalls the last error from the queue of device dependent errors DELAY Sets a trigger del...

Page 47: ...PUD Stores data in the non volatile memory PUD Recalls stored data from the non volatile memory RST Resets the VX4237 to the power up state and resets all instrument variables to the default values S...

Page 48: ...tings of the trigger system and any subsequent INITiate will cause the DMM to return to the wait for trigger state as selected by the TRIGger SOURce command Refer to the TRIGger subsystem page 3 60 Ev...

Page 49: ...ch on the DMM itself that must be set to CAL ENABLE Having done this the command CALibration SECure ON must be sent CALibration HIGH numeric_value LOW numeric_value SECure Boolean SLFRequency There ar...

Page 50: ..._value gives the actual value of the reference being applied to the input terminals if this is not the nominal value Error 110 Calibration switch disabled will be generated if either the calibration s...

Page 51: ...DMM must be set to CAL ENABLE The accepted value for Boolean is OFF 0 1 ON An error will be generated if CAL SEC ON is received and the calibration switch is not set to CALENABLE This queries the cur...

Page 52: ...LE and the command CALibration STATe ON must have been sent An error of 110 Calibration switch disabled will be generated if either the calibration switch is not set to enable and the CAL SECure ON co...

Page 53: ...ASure READ CONFigure NOTE INPut STATe Boolean should be ON before measurement takes place See page 3 29 for further information on the INPut command The source list will remain in the same state after...

Page 54: ...ible of the command up to the error shall be implemented For example if CONF VOLT 1 1E 6 2 is received on a single channel DMM then the 1 volt DC 6 5 digit range would be selected but the second chann...

Page 55: ...onal resolution parameter is used to select the measurement resolu tion There are three modes 4 5 5 5 and 6 5 digits However 6 5 digit resolution is not allowed in AC or DC coupled AC The tables on th...

Page 56: ...on resolution Selected Digit CURR AC MAXimum 5 5 digit MINimum 4 5 digit AUTO 5 5 digit AUTO ON 5 5 digit AUTO OFF Resolution as last set DEFault 5 5 digit Current is an option and if the option is no...

Page 57: ...2000000 10 M MINimum 100 MAXimum 10 M DEFault no parameter Autorange AUTO ON Select Autorange AUTO OFF Deselect Autorange In the table above DEFault AUTO and no expected_value selects autorang ing In...

Page 58: ...100 000k 1E 2 100 00 1 M 1E 6 1 000000M 1E 5 1 00000M 1E 4 1 0000M 10 M 1E 5 10 00000M 1E 4 10 0000M 1E 3 10 000M Table 3 6 Resistance 2 and 4 Wire Resolutions Selected by Command Function resolution...

Page 59: ...V MINimum 100 mV MAXimum 300 V DEFault no parameter Autorange AUTO ON Select Autorange AUTO OFF Deselect Autorange In the above table DEFault AUTO and no expected_value selects autorang ing In this mo...

Page 60: ...00V 300 V 1E 3 300 000V 1E 2 300 00V 1E 1 300 0V Table 3 8 DC Voltage Resolutions Selected by Command Function resolution Selected Digit VOLT DC MAXimum 6 5 digit MINimum 4 5 digit AUTO 6 5 digit AUT...

Page 61: ...elected by Command Function resolution Selected Digit VOLT AC MAXimum 5 5 digit MINimum 4 5 digit AUTO 5 5 digit AUTO ON 5 5 digit AUTO OFF Resolution as last set DEFault 5 5 digit An error of 241 Dat...

Page 62: ...The possible combinations of the string are Function Range resolution source_list CURR 1 1E 6 1 CURR AC 1E 5 1E 5 2 1E 4 1E 4 1 2 RES 1E2 range 1E 6 1 FRES 1E3 1 4 range 1E 5 r e 1 4 2 1 2 1E4 1 5 ran...

Page 63: ...current active selection is 10 volt 5 5 digits then the returned string would be VOLT DC 1E1 1E 4 1 In the case of the 300 V range then the resolution is returned as 1E l 1E 2 or 1E 3 Query only no a...

Page 64: ...s n x x x n n n E s n n t 6 5 digit 1 2 3 4 5 6 7 8 9 10 11 12 13 14 s n x x x n n n n E s n n t where s the sign or n ASCII digit 0 to 9 x either an n or a decimal point E ASCII character identifying...

Page 65: ...ere is no associated RST condition However note that RST puts the DMM into the idle state and thus a FETCh command would cause an error if no INIT had been received RDG BRCL RST Condition Native Equiv...

Page 66: ...When the trigger occurs the subsequent readings are stored within the DMM These can then be accessed by the FETCh command Any readings already in memory will be overwritten INITiate IMMediate Event No...

Page 67: ...ss these readings The READ command executes an INITiate command implicitly and the MEASure command executes a READ command implicitly Thus both commands will put the DMM into the wait for trigger stat...

Page 68: ...mmand is also used to configure the remote guard and the state of the input filter Subsystem INPut Alternatives Parameters COUPling AC DC FILTer LPASs STATe Boolean GUARd LOW FLOat STATe Boolean ZERO...

Page 69: ...the AC parameter then the DMM will only measure the AC component However sending the DC parameter will enable the DMM to measure the DC and the AC components of the signal If the DMM is not in AC then...

Page 70: ...that both LPASs and STATe are optional If the value of Boolean is 0 or OFF then the filter is deselected If Boolean is 1 or ON then the filter is selected No associated errors INPut FILTer LPASs STATe...

Page 71: ...on LOW internally connected to signal common FLOat connected to front panel guard terminal No associated errors This queries the setting of the guard shield Will return either LOW for internally conne...

Page 72: ...measurements if the input is not connected to the signal Thus a command such as MEAS and INIT IMM can generate errors as a result of the setting of INPut STATe Returns either 0 if the input is disconn...

Page 73: ...zero correction range The error 100 Input not connected is reported if this command is received and the input is disconnected INPut ZERO This command returns 1 for a fail 0 for a successful input zer...

Page 74: ...INPut STATe Boolean should be ON before measurement takes place See page 3 29 for further information on the INPut command As the MEASure and CONFigure commands have the same structure please refer t...

Page 75: ...lect the response mode of the DMM to a TTL trigger OUTPut TTLTrg n PROTocol SYNChronous ASYNchronous Where n 0 through 7 referring to the eight backplane lines TRIGger SOURce TTLTrg Syntax Related Com...

Page 76: ...n this configuration the trigger is received on the lower number i e TTLT0 2 4 6 and the measurement complete signal is output on the higher number i e TTLT1 3 5 7 The ASYN command will select the pai...

Page 77: ...the data format returned An execution error 100 Input not connected will be generated if the DMM input has not been selected with the INPut command If the DMM is in TRIGger SOURce BUS then the error...

Page 78: ...er SENSe Function CURRent DC RANGe numeric_value AUTO Boolean RESolution numeric_value AC RANGe numeric_value AUTO Boolean RESolution numeric_value FRESistance RANGe numeric_value AUTO Boolean RESolut...

Page 79: ...x function defining sub systems see the list below all have similar sub levels they will all be described together SENSe CURRent DC CURRent AC FRESistance RESistance VOLTage DC VOLTage AC Related Comm...

Page 80: ...select autorange SENSe function RANGe MAXimum MINimum SENSe function RANGe AUTO The query versions of these commands return the currently selected range The table below gives the returned string depen...

Page 81: ...r Manual SENSe CURRent DC RANGe 1 inactive SENSe RESistance RANGe 1E7 inactive SENSe FRESistance RANGe 1E7 inactive SENSe VOLTage DC RANGe 300 active RST Condition Artisan Technology Group Quality Ins...

Page 82: ...return one of the following strings as appropriate function resolution CURRI CURR AC 1E 6 1E 5 1E 4 RES I FRES range 1E 6 range 1E 5 range 1E 4 VOLT I VOLT AC range 1E 6 range 1E 5 range 1E 4 If the q...

Page 83: ...nted Note that both LPASs and STATe are optional For a Boolean value of 0 or OFF the falter is deselected For a Boolean value of 1 or ON the filter is selected No associated errors SENSe funCtiOn FILT...

Page 84: ...parameter is less than zero an execution error will be generated SENSe LFRequency The query form of the command returns the current setting of the line frequency and the current setting in the calibra...

Page 85: ...extra status deals with the current operation of the instrument and quality of any measurements taken For a diagram of the status register system please refer to the SCPI specification section 9 2 Fig...

Page 86: ...ange changing 4 DMM is currently measuring 5 DMM in wait for trigger state Note that no other bits are used by the DMM and are returned as having the value zero Note that this command clears any bits...

Page 87: ...d does not clear any of the set bits in the register Also note that because the DMM goes busy during range change and calibration these bits will never be read true by this command There are no associ...

Page 88: ...hen bit 7 of the Status Byte will be set true Note that the DMM only uses bits 0 2 4 and 5 of the operational status register An error of 222 Data out of range will be reported if the enable value is...

Page 89: ...tion 0 Voltage Overhang 1 Current Overrange 8 Invalid Calibration 9 Resistance Overrange Note that no other bits are used by the DMM and these are returned as having the value zero This command clears...

Page 90: ...h returns what is currently happening within the DMM Note that this command does not clear any of the set bits in the register There are no associated errors As this is a query command there is no ass...

Page 91: ...true or subsequently go true then bit 3 of the Status Byte will be set Note that the DMM only uses bits and 0 1 8 and 9 of the questionable status register An error of 222 Data out of range will be re...

Page 92: ...s into a known state See SCPI specification Section II 18 7 for details The STATus PRESet condition is all bits set to zero disabled Positive Transition true No associated errors with this command No...

Page 93: ...or number and description is a short ASCII description of the error If there are no errors currently in the queue then the DMM will return 0 No error If the queue overflows then the last error message...

Page 94: ...Users Handbook for language use Once in native mode control can be returned to the SCPI parser by the native command SCPI There are no errors associated with this command There are no associated error...

Page 95: ...ERSion This query command will report the version of SCPI that the instrument conforms to The returned NRf2 is There are no associated errors No associated RST Errors RST Condition Artisan Technology...

Page 96: ...ommand performs an instrument self test It may be either one specific test or a complete run of all tests TEST ALL Query only TYPE numeric_value Query only TST Syntax Related Commands Artisan Technolo...

Page 97: ...ts pass or the specific test number of the test that failed These will be the numbers already defined for the VX4237 native self test During the self test once a test falls the DMM does not proceed wi...

Page 98: ...ommand performs the specified number test It then returns the same data as the native VX4237 TEST command None TEST TST Note that this will use the current VX4237 self test structure Errors Native Equ...

Page 99: ...mmencing with the measurement Once this specified number of ARM and TRIGGER states have been satisfied then the DMM will return to the IDLE state The VX4237 DMM does not implement the ARM layer of the...

Page 100: ...On IDLE Initiated Wait for Trigger Trigger System Initiated Still Initiated No Longer Initiated Complete of TRIGger Loops Measure Trigger Conditions Satisfied Trigger Action Complete Figure 3 1 Trigg...

Page 101: ...OUR BUS or TRIG SOUR HOLD state for this command to trigger the DMM and not generate an error An error of 211 Trigger ignored will be generated if the DMM has not been initiated with an INIT command T...

Page 102: ...ecalled with the FETCh command Alternatively the DMM can be placed into the wait for trigger state using the READ command This will then return the subsequent measurements to the output queue when the...

Page 103: ...imum MAXimum This query command returns the current setting of the number of triggers expected If MINimum is present 1 is returned if MAXimum is present then 1000 is returned RST Condition Artisan Tec...

Page 104: ...y command The default delays are dependent on the current function range and resolution as set in the VX4237 handbook The default value will change every time a new function or range or resolution is...

Page 105: ...is selected then this will apply to all subsequent measurements An error of 222 Data out of range will be reported if the numeric_value is less that 0 or greater than 10 seconds TRIGger DELay MINimum...

Page 106: ...221 Settings conflict Note that this command only selects the trigger mode it does not cause a trigger The DMM must be in the idle mode for a TRIGger SOURce command to be accepted An execution error o...

Page 107: ...SCPI Commands 3 68 VX4237 Digital Multimeter Module User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 108: ...9999 selects the 100 V range NRf values 200 select the 300 V range NOTE Excessive digits in the NRf value are rounded to 5 5 digits AUTO selects the Autoranging mode in which the DMM attempts to sele...

Page 109: ...rs are specified the stored values are used On power on or reset the default values of ACV are ACV 300 V RESL5 FILT0 ACCP In Autoranging mode if an overload exists on the 300 V range a measurement err...

Page 110: ...t 0 9 x either n or an ASCII decimal point E an ASCII character identifying the exponent t or lf line feed The response is only related to the currently selected line frequency and resolution The firs...

Page 111: ...nt in the block store The response is as follows nnnn lf where n an ASCII digit 0 9 lf line feed or The BKNO query terminates the BLOCK operation if sufficient triggers have not been received to fill...

Page 112: ...fer may be accessed by the BRCL command After all the readings required to fill the Block Memory buffer have been acquired the DMM generates a URQ in the Standard Event Status register and resumes pla...

Page 113: ...arated by commas The BRCL query will generate an execution error if the NRf1 value is greater than the NRf2 value or if the NRf2 value is greater than the number of reading in the Block Reading buffer...

Page 114: ...isables Calibration mode The CAL command causes the VX4237 to enter the calibration mode If the external CAL switch on the front panel is not ON when the CAL command is received an execution error is...

Page 115: ...be either a 0 calibration complete with no errors or a 1 calibration complete but errors present The CALL and CALH commands will generate an execution error if any of the following conditions are not...

Page 116: ...1 errors present If any errors are present the relevant error codes are placed in a queue that is accessible using the DDQ command The CLRM command cannot clear the calibration constants unless the f...

Page 117: ...MM moves up range on overload and down range on less than 18 of range If an overload exists on the 300 V range a measurement error is issued A valid range deselects the Autoranging mode RESL4 RESL5 RE...

Page 118: ...er Manual 3 79 In the following example the DCV command selects the 1 V range with 5 5 digit resolution and the filter ON DCV 0 25 RESL5 FILT1 Examples Related Commands Artisan Technology Group Qualit...

Page 119: ...r 102 System queue overflow 150 Calibration measurement overflow 151 Calibration constants corrupted 152 Illegal cal store access 153 Invalid non nominal calibration value 160 Illegal test number 500...

Page 120: ...elftest 100 mVAC 535 Selftest 10 V zero filter 536 Selftest 10 V filter 537 Selftest 10 V filter 540 Selftest 1 k 541 Selftest 10 k 542 Selftest 100 k 543 Selftest 1 M 550 Selftest 551 Selftest 552 Se...

Page 121: ...nce a non default delay is set it remains set until a new value is set or a DELAY DFLT command is issued even if there is a range or function change or until a power on or reset occurs However a defau...

Page 122: ...n ASCII digit 0 9 x either n or an ASCII decimal point E an ASCII character identifying the exponent t or lf line feed The Test buffer is organized to increment on each read until the empty marker the...

Page 123: ...ernal grounding REM Selects remote external grounding At power on or reset the GUARD command default parameter is LCL In the following example the GUARD command sets remote grounding GUARD REM None Pu...

Page 124: ...nnects the input connector enabling measurements At power on or reset the default value of the INPUT command is INPUT OFF In the following example the INPUT command enables the input INPUT CH_A ACV DC...

Page 125: ...z 400 Sets the line frequency to 400 Hz The LINE command enables you to match the line frequency of the VX4237 to that of the input line power for accurate operation The following example sets the lin...

Page 126: ...frequency switch None The LINE command generates a response in the form of X Y where X is the line setting parameter value and Y is the actual line frequency None Purpose Syntax Parameters Description...

Page 127: ...on overload and down range on less than 18 of range If there is still an overload on the 10 M range a measure ment error is issued RESL4 RESL5 RESL6 Selects the number of digits displayed RESL4 select...

Page 128: ...WIRE4 If there is an overload on the 10 M range a measurement error is generated In the following example the OHMS command selects the 1 k range with 5 5 digit resolution filter ON and 4 wire connect...

Page 129: ...mal response is the most recent measurement which is read but not destroyed If a trigger is received while the DMM analog to digital conversion is still in process that conversion will be completed an...

Page 130: ...al point E an ASCII character identifying the exponent t or lf line feed The response relates only to the currently selected function and range The first line of the response is the positive gain fact...

Page 131: ...e valid tests are listed in the table below Test Description 500 Selftest 10 VDC 501 Selftest 196 10 VDC 505 Selftest 196 10 VDC filter 510 Selftest 1 VDC 515 Selftest 100 mVDC 520 Selftest divider ch...

Page 132: ...value the value measured by the DMM during the test n3 an NR3 value the absolute high limit of the test n4 an NR3 value the absolute low limit of the test In the following example the TEST command ru...

Page 133: ...n with the VXI word serial trigger command the TRG command or the X command If the EXT parameter is specified measurements will be taken upon receipt of a suitable hardware trigger through the front p...

Page 134: ...nd terminates a block measurement if it is in progress The X command generates an execution error if the input is disconnected The following response is also generated 20 0000E 36 An overload gives th...

Page 135: ...memory and are only cleared on power down The ZERO command generates an integer response of either 0 no errors present or 1 errors present If errors are present the relevant error codes are placed in...

Page 136: ...command causes the device to set the Operation Complete OPC bit in the Event Status register when all pending operations have completed The OPC query places a 1 in the device output queue when all pe...

Page 137: ...stored by the PUD command is protected the protection mechanism is implemented by the device designer When the number of 8 bit data bytes in the data parameter exceeds the storage area available an ex...

Page 138: ...sets the VX4237 None This command resets the VX4237 to the power on state and resets all instrument variables to the default values None Purpose Syntax Parameters Description Related Commands Artisan...

Page 139: ...or Service MSS Master Status Summary ESB Event Status Summary MAV Message Available If an out of range integer is entered for the value of integer an execution error is generated The SRE query generat...

Page 140: ...ws Bits 0 and 2 7 of the Events Status register correspond to Bit 1 6 of the Status Byte register Bit 5 of the Service Request Enable register corresponds to Bit 7 of the Status Byte register Refer to...

Page 141: ...gger event None This asynchronous command causes a trigger pulse to be generated The trigger pulse can override the usual triggering operation None Purpose Syntax Parameters Description Related Comman...

Page 142: ...4237 to execute its internal self test diagnostic routines The response to the TST query is an NR1 A 0 indicates the test completed with no errors A 1 indicates the test completed with errors detected...

Page 143: ...IEEE 488 2 Common Commands 3 104 VX4237 Digital Multimeter Module User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 144: ...Status and Events Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 145: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 146: ...which has a maximum capacity of 128 bytes characters Each incoming character in the I O Control generates an interrupt to the instrument processor which places it in the Input Buffer for examination...

Page 147: ...t Response Message Elements Response Data Query Errors QYE bit Power On PON bit URQ bit Execution Errors EXE bit Device Dependent DDE bit Received Message Elements Parsed Message Elements Executable M...

Page 148: ...g as the output queue holds one or more bytes it reports the fact by setting true bit 4 Message Available MAV of the Status Byte register Bit 4 is set false when the output queue is empty refer to the...

Page 149: ...ies are thus being accepted and acted upon helps to reduce the number of iterations needed to confirm and develop the viability of the whole program So any assistance which can be given in closing the...

Page 150: ...to be reported the application program sets its corresponding enable bit true using the number Nrf defined as a decimal numeric from 0 to 255 in any common format Then when the enabled event occurs an...

Page 151: ...ever the controller reads the Status Byte it can only receive summaries of types of events and further query messages are necessary to dig deeper into the detailed information relating to the events t...

Page 152: ...mmary bits those types of events which are to cause the VX4237 to originate an RQS It contains a user modifiable image of the Status Byte whereby each true bit acts to enable its corresponding bit in...

Page 153: ...ished outputting its Response Message to a Program Query and is interrupted by a new Program Message H Unterminated Condition When the controller attempts to read a Response Message from the VX4237 wi...

Page 154: ...n where Nrf is a decimal numeric which when decoded into binary produces the required bit pattern in the enabling byte For example if the ESB bit is required to be set true only when an execution or d...

Page 155: ...ase and the long form upper and lower case The PARAMETER FORM column indicates the number and order of parameter in a command and their legal value Parameter types are distinguished by enclosing the t...

Page 156: ...0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 CURRent VOLTage TIME TEMPerature FREQuency PHASe MODulation CALibration INSTrument Summary Command Warning Available to designer Available to designer Available...

Page 157: ...dram setting reasons 213 Init Ignored An INIT was received when the DMM was already in the wait for trigger state 221 Settings Conflict The DMM has received a request for an operation and cannot perf...

Page 158: ...stants corrupted 152 Illegal cal store access 153 Invalid non nominal calibration value 160 Illegal test number 500 Selftest 10 VDC 501 Selftest 10 VDC 505 Selftest 10 VDC filter 506 Selftest 10 VDC f...

Page 159: ...tatus and Events 4 14 VX4237 Digital Multimeter Module User Manual Code Description 551 Selftest 552 Selftest Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg co...

Page 160: ...Appendices Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 161: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 162: ...0 003 12 0 005 12 3 6 5 digits 2 V N A 0 002 6 0 003 6 2 20 V N A 0 002 4 0 003 4 2 200 V N A 0 003 6 0 005 6 3 300 V3 N A 0 003 1 0 005 1 3 W4 6 5 i its 200 W 1 mA 0 0035 12 0 005 12 4 6 5 digits 2 k...

Page 163: ...l 300 kHz 1 MHz 2 1 0 typical 5 Valid for signals 1 of range 300 V 100 Hz V Hz product 6 Available ranges are 200 mV 2 V 20 V 200 V and 300 V DC Voltage Characteristic Description DC Voltage Input Imp...

Page 164: ...Address Manual selection 1 255 address 255 supports dynamic configuration Interrupt Level User programmable 1 7 External Trigger Input Maximum Input Voltage Rating Normal TTL level 0 to 5 V Current P...

Page 165: ...agnetic Compatibility Compliance was demonstrated to the following specifications as listed in the Official Journal of the European Communities EN 55011 Class A Radiated and Conducted Emissions EN 500...

Page 166: ...d product Overvoltage Category Supply Input Overvoltage Category I as defined in IEC1010 1 Annex J Measuring Inputs Overvoltage Category I as defined in IEC1010 1 Annex J Pollution Degree Pollution De...

Page 167: ...Appendix A Specifications A 6 VX4237 Digital Multimeter Module User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 168: ...hese connectors are listed in the tables below For detailed information regarding the signals on the pins refer to the VMEbus Standard and the VXIbus Specification referenced above P1 Pinout nc no con...

Page 169: ...A04 IRQ4 A11 28 A03 IRQ3 A10 29 A02 IRQ2 A09 30 A01 IRQ1 A08 31 12 V nc 12 V 32 5 V 5 V 5 V P2 Pinout nc no connection Pin Number Row A Signal Mnemonic Row B Signal Mnemonic Row C Signal Mnemonic 1 n...

Page 170: ...nemonic Row B Signal Mnemonic Row A Signal Mnemonic 17 nc nc nc 18 nc nc nc 19 nc nc nc 20 nc nc nc 21 nc nc nc 22 nc GND nc 23 nc nc nc 24 nc nc nc 25 nc nc nc 26 nc nc nc 27 nc nc nc 28 nc nc nc 29...

Page 171: ...Appendix B Rear Panel Connections B 4 VX4237 Digital Multimeter Module User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 172: ...CON Figure None FETCh None I N I Tiate 1M Medi ate None INPut COUPling INP COUP AC FILTer LPASs STATe INP FILT LPAS STAT OFF GUARd INP GUAR LOW STAT I N P STAT OF F ZERO Unaffected MEASure CURRent ME...

Page 173: ...ion EVENt Unaffected OPERation ENABle None QUEStionable CONDition None QUEStionable EVENt Unaffected QUEStionable ENABle PRESet See SCPI Specification SYSTem ERRor None LANguage NATive SCPI Parser VER...

Page 174: ...tablish that the VX4237 performs within its specifications meaning that it operates within the tolerance of its accumulated uncertainties Since the test equipment also contributes uncertainties these...

Page 175: ...inties which replaces the factory uncertainties For convenience a separate column is provided for the user s test equipment uncertainties A relevant formula for calculating the validity tolerances is...

Page 176: ...olumn of Table D 2 9 Turn the DC Volts calibrator output OFF 10 Reverse the calibrator connections the VX4237 to input a negative voltage 11 Turn the calibrator output ON 12 Send X to the VX4237 and e...

Page 177: ...n Setting VX4237 Command 1 VDC Range 1 0 V 2 DCV 1 4 ZERO 6 X 7 1 000000 V 8 X 10 1 000000 V 12 X 10 VDC Range 1 0 V 2 DCV 10 4 ZERO 6 X 7 10 00000 V 8 X 10 10 00000 V 12 X 100 VDC Range 1 0 V 2 DCV 1...

Page 178: ...erance Um Lower Higher VX4237 Reading 100 mV 99 9958 100 0042 0 00045 mV 100 mV 100 0042 99 9958 0 00045 mV 1 V 0 999974 1 000026 0 000035 V 1 V 1 000026 0 999974 0 000035 V 10 V 9 99976 10 00024 0 00...

Page 179: ...played value into the VX4237 Reading column of Table D 4 7 Turn the AC Volts calibrator output OFF 8 Repeat steps 1 through 7 to verify the 1 V 10 V 100 V and 300 V ranges substituting the AC Volts ca...

Page 180: ...ge Calibrator Calibration Relative Accuracy Tolerance Limits Factory Calibration tan ar User s Measurement Tolerance Validity Tolerance Limits 2 Calibrator Output Calibration Frequency Lower Lr Higher...

Page 181: ...Tolerance Limits calculation after user calibration Higher Limit Hr Uf Um Lower Limit Lr Uf Um AC Linearity Check 1 Set the AC Volts calibrator as follows Output OFF 1 VRMS 1 kHz Local Guard 2 Program...

Page 182: ...rance Validity Tolerance Limits 2 Calibrator Voltage Calibration Frequency Lower Lr Higher Hr Standards Ur Tolerance Um Lower Higher VX4237 Reading 1 V 1 kHz 9977 1 0023 0 0003 V 10V 1 kHz 9 9945 10 0...

Page 183: ...VX4237 and enter the displayed value into the VX4237 Reading column of Table D 7 8 Enter the actual calibrator resistance value as provided by the manufactur er s or calibration lab s correction shee...

Page 184: ...mmand 1 k Range 1 0 2 OHMS 1000 4 ZERO 6 1000 000 7 X 10 k Range 1 0 2 OHMS 10000 4 ZERO 6 10000 00 7 X 100 k Range 1 0 2 OHMS 100000 4 ZERO 6 100000 0 7 X 1 M Range 1 0 2 OHMS 1000000 FILT1 4 ZERO 6...

Page 185: ...nce Um Lower Higher Resistance Vr Vr Nom VX4237 Reading 100 99 9953 100 0047 0 00045 1 k 0 999964 1 000036 0 0000045 10 k 9 99964 10 00036 0 000045 100 k 99 9954 100 0046 0 0008 1 M 0 999912 1 000088...

Page 186: ...d injury do not perform any servicing other than that stated in the operating instructions unless you are qualified to do so Refer to all Safety Summaries before performing any service WARNING Artisan...

Page 187: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 188: ...ailure contact your Tektronix field office or representative for assistance Adjustment The VX4237 provides full external calibration of all ranges and functions through the VXIbus Calibration commands...

Page 189: ...ce Verification section of this manual for calculations used to determine the effect of calibration standard uncertainties on overall VX4237 accuracy 1 Install the VX4237 in an appropriate VXI mainfra...

Page 190: ...ront panel calibration switch to the disable down position However it is recommended that once the adjustment procedure has been started that it be completed before putting the VX4237 back into servic...

Page 191: ...re CALL Any value between 0 and 25 of full range except for the 300 DCV and ACV ranges which are limited to 75 V CALH Any value between 75 and 100 of full range Once the VX4237 has been adjusted to th...

Page 192: ...ections to the VX4237 to input a negative voltage 9 Turn the calibrator output ON 10 Send CALH to the VX4237 to set the 10 00000 V adjustment point 11 Turn the calibrator output OFF 12 Reverse the cal...

Page 193: ...ration Setting 10 CALH 1 V Range 1 0 V 2 DCV 1 4 CALL 5 1 000000 mV 6 CALH 8 1 000000 mV 10 CALH 100 V Range 1 0 V 2 DCV 100 4 CALL 5 100 0000 mV 6 CALH 8 100 0000 mV 10 CALH 300 V Range 1 0 V 2 DCV 3...

Page 194: ...t circuit was connected in step 3 remove the shorting jumper and reconnect the resistance calibrator 6 Set the calibrator to 100 7 Send CALH to the VX4237 to set the 100 adjustment point If the calibr...

Page 195: ...CALL 6 10000000 7 CALH These steps adjust the 2 Wire Zero operation 1 Disconnect the calibrator 2 Short together pins 1 and 5 on the VX4237 input connector Use as short a jumper as possible 3 Program...

Page 196: ...ge adjustment point 5 Set the calibrator output to 100 000 mVRMS 1 kHz 6 Send CALH to the VX4237 to set the 100 mV adjustment point 7 Turn the calibrator output OFF 8 Repeat steps 1 through 7 to calib...

Page 197: ...1 00000 mVRMS 2 ACV 100 4 CALL 5 100 000 VRMS 6 CALH 300 V Range 1 3 00000 mVRMS 2 ACV 300 4 CALL 5 199 000 VRMS 6 CALH Turn the calibrator output OFF and disconnect the calibrator Send the CAL OFF c...

Page 198: ...Appendix E User Service VX4237 Digital Multimeter Module User Manual E 11 Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 199: ...Glossary Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 200: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 201: ...and between those modules and the external system Bus Arbitration In the VMEbus interface a system for resolving contention for service among VMEbus Master devices on the VMEbus CLK10 A 10 MHz 100 ppm...

Page 202: ...bussed across the VXIbus subsystem backplane Any module including the Slot 0 module may drive and receive information from these lines These lines have an impedance of 50 ohms the asserted state is l...

Page 203: ...es Power Monitor A device that monitors backplane power and reports fault conditions P1 The top most backplane connector for a given module slot in a vertical mainframe such as the Tektronix VX1400 Th...

Page 204: ...lots 1 through 12 CLK10 and the module identity lines but that may provide other services such as CLK100 SYNC100 STARBUS and trigger control SYSFAIL A signal line on the VMEbus that is used to indicat...

Page 205: ...Word Serial Communications Inter device communications using the Word Serial Protocol WSP See Word Serial Protocol 10 MHz Clock A 10 MHz 100 ppm timing reference Also see CLK10 100 MHz Clock A 100 MHz...

Page 206: ...Glossary Glossary 6 VX4237 Digital Multimeter Module User Manual Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 207: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 208: ...Artisan Technology Group Quality Instrumentation Guaranteed 888 88 SOURCE www artisantg com...

Page 209: ...uipment Have surplus equipment taking up shelf space We ll give it a new home Learn more Visit us at artisantg com for more info on price quotes drivers technical specifications manuals and documentat...

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