Manuale d’uso / di manutenzione del prodotto 54753a del fabbricante Agilent Technologies
Vai alla pagina of 44
Agilent 5475 3A and 54754A TDR Plug-in Modules Programmer’ s Quick Refe rence.
ii Notices © Agilen t T echnologie s, Inc. 2 000-20 04 No pa rt of t his man ual ma y be r epro- duced in any form or by any means (including electronic stor age and retrieval or translation into a foreign lan- guage ) witho ut pri or agre emen t and wr it- ten consent from Ag ilent T echnologies, Inc.
iii Introduc tion Introduction 54750A/8 3480A Mai nfram es For control ling 5475 3A and 54754A TDR plug -in mod ules that are ins talled in a 54750A or 834 80A mainfram es, refer to th e following boo.
iv Introduct ion [ ] Squa re brack ets indicat e that the en clos ed items a re option al. { } When s everal items are e nclosed by braces, o ne, and only one of these elemen ts may be s elected. Definitions d ::= A si ngle ASCII n umeric cha rac ter , 0-9 .
Contents Root Level Com mand s 4 Acqu ire Comman ds 7 Calib rate C om mand s 8 Channel Commands 9 Disk Com mand s 11 Disp lay Comm and s 12 Function Commands 13 Hi s to g r a m C o mm a n d s 1 9 L i .
Root Leve l Commands Command :BLA Nk {CH ANne l<nu mber > | WMEM ory< numb er> | FUNC tion <nu mber > | FFT | RE SPon se<num ber> | HIST ogra m | PMEM ory1 } Tur ns off an ac tiv e chann e l, funct ion, wa vefo rm memo ry, pixe l memor y, F FT, hist ogr am, or TD R respo nse.
Command :DIG itiz e [<wa vefo rm_n ame> ][,< wave form _nam e>] Invokes a special mode of data acquisition that is more efficient than using the RUN co mmand . Th is com man d in itia lizes the selec ted chan nels , functions, responses, or FFT to “unacquired,” then acquires them according to t he current instru me nt s ettin gs.
Command :STO Re:W AVEf orm {C HANn el<n umbe r> | FUN Ct io n< nu mb er > | WMEM or y< nu mb er > | HI ST ogra m | FFT | RE SPon se<n umbe r>}, {WME Mory <num ber> } Copi es a c han nel, f unc tion , sto red wa vefo rm, hist ogram , TD R respo nse, or FFT to a wavefo rm me mory .
Acquire Commands Command :ACQ uire :BES T[?] {TH Rupu t | FLATne ss} Wh en avera gin g is enab led wit h ACQuire: AVERage, the FLAT ness opt ion impr ov es the ste p flat ness by usin g a signal pr ocess ing algori thm w ithi n the inst rument .
Cali bra te C ommands Command :CAL ibra te:S AMPl ers[ ?] {DI Sabl e | ENAB le} Enab les or d isables the samp le rs in the plu g-in. 8.
Channel Commands Command :CHA Nnel <num ber> :OFF Set[ ?] < offs et_v alue > For TDR an d TDT app licat ion s, you may change the offs et to magn ify of fset in som e circu ms tances . This com m and is used t o set the ma gni fy off set as well as the of fset.
Command :CHA Nnel <num ber> :TDR Skew <pe rcen t> [ %] This co mmand set s the TD R skew fo r the given chann el. The TD R skew cont rol mo ves th e TDR st ep re lative t o the tr igger po sition. The contro l may be se t fro m - 100 to 100 pe rcen t of t he al lowab le range.
Disk Commands Command :DI SK :L OA D "< fi le name >" , <s ou rc e> Loads a setup, waveform, datab ase, mask, TDR/TDT calibration, or pixel memory from the disk. The filename does not include a suffix. The suffix supplied by the instrument depends on the source and fil e format specified.
Displ ay Commands Command :DIS Play :ASS ign[ ?] { CHAN nel< numb er> | FUN Ct io n< nu mb er > | RESP on se <n um be r> | WMEM ory< numb er> | FF T},{ UPPe r | LOWe r} Assign s the spec ifi ed cha nnel , wav efo rm, func tion , TDR resp onse , or F FT to a par ticu lar por tion of t he wavefo rm are a on th e scr een.
Function Commands Command :FUN Ctio n{1 | 2} :ADD <so urce >[,<so urce >] Defines a functio n that takes the alge braic sum of two defined operands.
Command :FUN Ctio n{1 | 2} :DIF Fere ntia te {CH ANne l<nu mber > | FUN Ct io n< nu mb er > | RESP on se <n um be r> | WMEM ory< numb er> | <f loat _val ue>} Computes the dis crete derivative of the defined operand’s waveform.
Command :FUN Ctio n{1 | 2} :INT egra te {CH ANne l<nu mber > | FUN Ct io n< nu mb er > | RESP on se <n um be r> | WMEM ory< numb er> | <f loat _val ue>} Defines a function that computes the i ntegral of the defined operand’s waveform.
<number> For chann els: an int eger, 1 thro ugh 4, ind icating the slo t in wh ich the chan nel resi des, foll owed by an o ptio nal A or B iden tifyi ng which o f tw o poss ible cha nnels in th e slot is b eing r eference d. For f unctio ns: 1.
Command :FUN Ctio n{1 | 2} :MUL Tipl y <sou rce> [,<s ourc e>] Defines a function that alg ebraically multipli es the fi rst operand by the second operand.
Command :FUN Ctio n{1 | 2} :VER Sus <s ourc e>[, <sou rce> ] Defines a function for an X- versus-Y display . The fi rst operand defines the Y axis and the se cond defines the X axis . The Y-axi s range and offset are init ially equa l to that of the first o pera nd an d can b e ad just ed wi t h th e RANGE and OFFSET commands.
Histogram Co mmands Command :HIS Togr am:W INDo w:SO URce [?] {C HANn el<n umbe r> | FUN Ct io n< nu mb er > | RESP on se <n um be r> | WMEM ory< numb er> | FF T} Sele cts the source of the hist ogram windo w. Th e histo gram w indow w ill tra ck the source’s vertical and horizontal scal e.
Limit Test Commands Command :LTE St:S WAVe form [?] <sou rce> ,<de stin atio n>,[ ,<fi lena me>[ ,<fo rmat >]] Sav es wa vefor m s fro m a chan ne l, func tio n, histo gram, TDR re spons e, or wav efo rm me mory in the e vent of a failu re d etected b y the lim it test.
Marker Commands Command :MAR Ker: MODE [?] {O FF | MAN ual | WA Vefo rm | MEAS urem ent | HI STog ram | TD RTDT } Set s the ma rk er m ode. Command :MA RK er :P RO Pa ga tion [? ] {D IE Le ct ri c | ME Ter | FE ET } <pro pa ga ti on > Sets the propagat ion velocity fo r TDR and TDT measurements.
Command :MAR Ker: X1Y1 sour ce[? ] {CHA Nnel <num ber> | FUN Ct io n< nu mb er > | RESP on se <n um be r> | WMEM ory< numb er> | HI STog ram | FF T} Sets the source for the X1 and Y1 markers .
Mas k Tes t C omm ands Command :MTE St:A MASk :SOU Rce[ ?] { CHAN nel< numb er> | FUN Ct io n< nu mb er > | RESP on se <n um be r> | WMEM ory< numb er> | FF T} Sele cts the sou rce for the inte rpretat ion of the AM ASk:XDEL ta and AMASk :YDELt a par ame t ers when A MASk:UN ITs is set t o CURR ent .
<number> For chann els: an int eger, 1 thro ugh 4, ind icating the slo t in wh ich the chan nel resi des, foll owed by an o ptio nal A or B iden tifyi ng which o f tw o poss ible cha nnels in the slot is being refer ence d. For fun ctio ns: 1 o r 2.
Mea sur e C omman ds Command :MEA Sure :DEL Tati me[? ] [<so urce >[,< sour ce>] ] Measu res th e del ta time betwe en tw o edges. If one so urce i s spe cified, the delt a time from th e leadin g edge of the specif ied source o t the trail ing ed ge of the specified source is measured.
Command :MEA Sure :FAL Ltim e[?] [<s ourc e>] Measures the time at the upper threshold o f the fa lling edge , me asur es the tim e at t he low er th resho ld of th e fall ing edge, then calcula tes the fal l time.
Command :MEA Sure :NWI DTh[ ?] [ <sou rce> ] Measures the width of t he first negati ve pulse o n the screen usi ng the mid- thres hold lev els o f the wav efo rm (50 % level s wit h sta nda rd meas urement s selected ).
<number> For chann els: an int eger, 1 thro ugh 4, ind icating the slo t in wh ich the chan nel resi des, foll owed by an o ptio nal A or B iden tifyi ng which o f tw o poss ible cha nnels in the slot is being refer ence d. For fun ctio ns: 1 o r 2.
Command :MEA Sure :RIS etim e[?] [<s ourc e>] Measu res t he ris e time of th e fi rst d isplay ed edg e by me asur ing the time at the lower threshold of t he rising edge, measuring the t ime at the uppe r threshold o f the risi ng edge, then cal culating t he rise time.
Command :MEA SURE :TED ge[? ] <mea s_th res_ txt> , <slo pe>< occu rren ce>[ ,<so urce >] Measur es t he time i nte rval bet ween t he trigg er event and t he sp ecified thre shol d leve l and t ransit ion .
Command :MEA Sure :TMI N[?] [<s ourc e>] Measures the time at which the fi rst minimum voltage of the source wave for m oc cur red. Wh en FFT is the speci fied sour ce, the fr equen cy at whic h th e fir st min im um valu e occur re d is measur ed .
Command :MEA Sure :VAM Plit ude[ ?] [ <sou rce> ] Calculates the difference bet ween the top and base volt age of the spe cified sou rce. <source> {CH AN ne l< nu mb er > | FUNC ti o.
Command :MEA Sure :VLO Wer[ ?] [ <sou rce> ] Measures the voltage value at the lower threshold of the waveform. <source> {CH AN ne l< nu mb er > | FUNC ti on <n um be r> | RES .
Command :MEA Sure :VMI N[?] [<s ourc e>] Measu res th e abso lute min im um vo ltage pre sent on the sele cted sou rce wave fo rm. Wh en FF T is the speci fied s ource , the minim um val ue in the spect rum i s measu red.
Command :MEA Sure :VRM S[?] {CY CLe | DI SPlay} , {AC | DC } [,<s ourc e>] Measu re s th e RMS vo lta ge of th e selec ted wavefo rm by su btrac tin g the average value of the waveform from each data point on the display.
Command :MEA Sure :VTO P[?] [<s ourc e>] Measu res th e stati stica l top o f the se lected so urce wave form. <source> {CH AN ne l< nu mb er > | FUNC ti on <n um be r> | RES P.
TD R Co mman ds Command :TD R{ 2 | 4} :R ES Po ns e{1 | 2 | 3 | 4} :C AL ib ra te Begins a TDR or TD T normalization and re ference plane cal ibration.
Command :TDR {2 | 4}: RATE [?] {A UTO | <r ate> } Set s th e peri od of the TD R pulse gene rato r. Yo u sho uld usu al ly leave this set to AUTO unle ss you nee d to define a s pecific rate. In A UTO, the ins trument will attempt to keep subseq uent per iods o ff screen wh en the tim ebase is changed.
Command :TD R{ 2 | 4} :R ES Po ns e{1 | 2 | 3 | 4} :R IS et im e[ ?] <ris etim e> Set s th e riseti me for the no rmaliz ed r espo nse. The risetim e sett ing is li mited by t he timeb ase setti ngs and the record lengt h. <risetime> Riseti me setting in se conds.
Command :TD R{ 2 | 4} :R ES Po ns e{1 | 2 | 3 | 4} :V ER Ti ca l[ ?] {TSO urce | M ANua l} Specifies whether the TDR/TDT response should track the source channel ’s vert ical scale (T SOu rce), o r use a user- defined scale specifi ed with t he VER Tical:O FFS et and VERT ical:RA N Ge c om mand s (M ANual) .
Wavefor m Commands Command :WAV efor m:SO URce [?] {C HANn el<n umbe r> | FUN Ct io n< nu mb er > | RESP on se <n um be r> | WMEM ory< numb er> | DA Taba se | HIS Togr am | FFT } Selects a channel, function, TDR response, waveform memo ry, database, hist o g ram, o r FF T as t he wave for m s ource.
Wavefor m Memor y Co mmands Command :WME Mory <num ber> :SAV E {CHA Nnel <num ber> | FUN Ct io n< nu mb er > | RESP on se <n um be r> | WMEM ory< numb er> | HI STog ram | FF T} Sto res th e spec ifi c chan nel, wav efo rm me mory , funct ion, hist ogra m, or FFT to t he wavefo rm m emo ry.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Agilent Technologies 54753a è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Agilent Technologies 54753a - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Agilent Technologies 54753a imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Agilent Technologies 54753a ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Agilent Technologies 54753a, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Agilent Technologies 54753a.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Agilent Technologies 54753a. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Agilent Technologies 54753a insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
