Instruction/ maintenance manual of the product L4400 Agilent Technologies
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Agilen t T echno logies Agil ent L44 00 Ser ies LXI C lass C I nstrum ents User’ s Guide.
Notic es © A gilen t T echnolo gi es, Inc . 20 06 No p art of th is manu al ma y b e re prod uced in an y f orm or by a n y me an s (i ncl udin g ele ctr onic stor ag e an d re tri e val or tr an sla- tion into a for eign langua ge) withou t prior agr eem ent and w rit ten conse nt fr om Ag i- len t T echnologi es, Inc.
Addi tional Safety Notice s The fo llo win g ge ne ra l saf ety p rec au ti ons mus t be obs erved during all phases o f o per- at ion of this instr ument.
DECLARATION OF CONFORMITY According to ISO/IEC Guide 22 and CEN/CENELEC EN 45014 Template: A5971-5302-2, Rev. B.00 L4421A-DoC-A DoC Revision A Manufacturer’s Name: Agilent Technologies, Incorporated Manufacturer’s Address: 815 – 14 th St.
L44 00 Use r’s Guid e v Con t en ts 1 Introducti on to the L4400 Seri es LX I Instruments I nstr ument Cons ide rations 2 E nvironm enta l Oper ating Co nditi ons 2 Elec tr ical Op era tin g Con d i.
vi L4400 U s er’s G uide 3 Opera ting and Progra mming L4400 Instrument Front Panel O verview 48 The L AN R es et B u tt on 48 The F ront Pan el LEDs 48 L4400 Instrum ent Re ar Pan el Over view 50 L.
L44 00 Use r’s Guid e vi i Using Seque nces 89 Def i ni ng a S eq u enc e 90 Qu erying th e Sequenc e Defini t ion 93 E xecut ing a Se quence 93 Exec uting a Seque nce on an Alar m Condit ion 94 Del.
viii L4400 U ser ’s Gu ide 6 L4437A Ge neral P urpose Sw itch General Purp ose Sw it ch Instrument 130 L4437 A SC PI Com ma nd Sum mary 13 2 L4437 A Exam ple Program Se gme nts 133 L4437 A 32- Chann.
L44 00 Use r’s Guid e ix 8 L4450A 64-Bi t Digital I/O with Memor y and Counter L4450A S CP I Comm an d Su mmar y 198 L4450A 6 4-B it Digi tal I/O with Me m ory and Cou nter 205 Ba sic D ig ital I /O.
x L4400 U s er’s G uide A L4451A a nd L4 452A C alibration P rocedures Cali bra tio n P ro c edu res 248 Ag ilent T e chno log ies Cal ibra ti on S erv ices 248 Cali bra tio n In t erva l 248 Ti m e.
1 Agi lent L44 00 LXI Clas s C In stru men ts Use r’ s Gu ide Agilent T echno logies 1 Intr oducti on to the L 4 400 Series LXI Inst ruments I nstr ument Cons ide ra t ions 2 I nterc o nnec tion So luti ons Ov ervi ew 4 Benc h- T op Oper ati on and Ins trum e nt Rack Mounti ng 5 Appl y ing P ow er 11 W elco me.
2 L4400 U s er’s G uide 1 Introdu ction to the L4400 Series LXI Instr uments Instrum ent C onside rati ons This section l ists im portant items an d acti ons that can aff ect the op eration of yo u r m o d u l e s .
Intro d uction to t he L440 0 Ser ies LX I Ins trum ents 1 L44 00 Use r’s Guid e 3 Electrical Operating Condit ions Tr a n s i e n t s The L44 21A, L4 433A, and L44 37 A modules are d e sig ned to saf ely withstand occasi onal tran sie n t o verv oltages u p to 1000 Vpe ak.
4 L4400 U s er’s G uide 1 Introdu ction to the L4400 Series LXI Instr uments Interco nnec tion S olution s Ove rvi ew Depe nding on your spe cific requi reme nts, you can conne ct y our DUT to the L44 00 LX I inst rum ent using the follo wing o ptiona l int erconne ction s olu tio ns .
Intro d uction to t he L440 0 Ser ies LX I Ins trum ents 1 L44 00 Use r’s Guid e 5 Benc h- T op Ope rati on and Instrume nt Ra ck Moun ting The L4 400 se ries i nstrumen t s ca n be located on a bench- to p or ra ck moun ted in stan dard 19 - inch EIA rack ca binets .
6 L4400 U s er’s G uide 1 Introdu ction to the L4400 Series LXI Instr uments Procedure Fig ure 1- 1 is a compo site d rawing of th e Y11 60A slid ing shelf rack mo unt kit. The dra wing sho ws the location /us age of t h e har dware i tems li sted in Tab le 1- 2 .
Intro d uction to t he L440 0 Ser ies LX I Ins trum ents 1 L44 00 Use r’s Guid e 7 The L4400 instr u ment(s) can be mo unt ed between any two ad jacent EIA unit indicat ors (F igur e 1- 2 ). On A gilent r ack s, an EIA unit ind icato r is re pr es e nt ed by a tr ia ng le ( ! ) on the rack’s fr ont and rear - facin g columns.
8 L4400 U s er’s G uide 1 Introdu ction to the L4400 Series LXI Instr uments If cente r - facing co lumns with holes are present on the f rame, i nsert a cli p- on nu t o n the h ole perpe ndi cul ar to th e cente r hol e on the fr on t fa cing col umn .
Intro d uction to t he L440 0 Ser ies LX I Ins trum ents 1 L44 00 Use r’s Guid e 9 Insta ll the Sliding Shel f F acing the rack, slid e th e shel f (item 7) o nto the bottom surfaces of the rai l c hann els . T he tab s at th e ba ck of the she lf pa ss und erne ath t he ch anne l s urf ac e.
10 L4400 U s er’s G uide 1 Introdu ction to the L4400 Series LXI Instr uments 4 . I nstal l th e s eco nd L44 00 ins trume nt (i f p res e nt) in the she l f ar e a a d jac en t to t he first instr ume nt. If on ly one instr u men t is ins ta lled, ins ta ll a f iller pane l o n the fr ont edge of the un used area .
Intro d uction to t he L440 0 Ser ies LX I Ins trum ents 1 L44 00 Use r’s Guid e 11 Connect the Shelf to the Rack Fra me Once the instrumen ts are in stalle d and all po wer cor ds and cables are routed a s inten ded, s lid e t he shel f into the cabinet until the sh elf han dl es meet the fr ont-fac i ng col umns of the rack fr a me.
12 L4400 U s er’s G uide 1 Introdu ction to the L4400 Series LXI Instr uments R e fe r t o T a b l e 3 - 1 ( C h a p t e r 3 ) f o r d e f i n i t i o n s o f t h e L E D s ( AT T N , L AN , P W R ) on the L4 400 ins trument f ront panel. Figure 1 -6.
13 Agi lent L44 00 LXI C las s C Inst rum en ts Use r’ s Gu ide Agilent T echno logies 2 Software Installation and Con figurati on In stal ling t he Agil ent I O L ibr arie s an d L440 0 In st rumen.
14 L 4400 U ser’ s G uide 2 Software Ins tallat ion and Configura tion Install ing the Ag ilent IO Libra ries and L44 00 Instrume nt Driv ers Commun icat ion an d co ntrol of the L4 400 ser ies in s.
Software I nstallation and Conf iguration 2 L44 00 Use r’s Guid e 15 Close all applicati ons on your comput er . Insert the Agile nt Automation-Ready CD into the C D-ROM driv e . F oll ow the inst ructions a s prompte d durin g the inst a lla tion. Acce pt all def ault d i r ec tories sp ecifi ed .
16 L 4400 U ser’ s G uide 2 Software Ins tallat ion and Configura tion Figure 2 -2. L4 4 00 Product Refere nce CD-ROM Software ( Driver) Menu Inst a ll t he appropr iate dr iver from the menu base d on t he envir onment you wil l use to progra m the L4400 instruments .
Software I nstallation and Conf iguration 2 L44 00 Use r’s Guid e 17 Config uring t he L 4400 Ins trume nts Instr ume nt conf igu ratio n as applied to t h e L4400 s eries of L XI inst rum ents in v.
18 L 4400 U ser’ s G uide 2 Software Ins tallat ion and Configura tion Sec urity: a p ri va t e n e twor k g en er a lly i nvo lves di rec t c on ne ct io ns be tw een t h e co mputer and the inst r uments , and ma y incl ude swi tches and r outers.
Software I nstallation and Conf iguration 2 L44 00 Use r’s Guid e 19 Private Network Connections Figure 2 - 3 sho ws ty pical L AN cable c onnections f or a private n etw ork.
20 L 4400 U ser’ s G uide 2 Software Ins tallat ion and Configura tion Site Network Connections Figure 2 - 4 sho ws ty pical L AN cabl e c onnecti on s f or a si te net work.
Software I nstallation and Conf iguration 2 L44 00 Use r’s Guid e 21 Ho st N ames Each L440 0 i ns trument has a def ault hos t name. The f or mat of th e h ost n ame is: A- L44xx A- yyyyy where ‘L44xxA’ is rep l ace d by the modul e number (e .
22 L 4400 U ser’ s G uide 2 Software Ins tallat ion and Configura tion Figure 2- 5 . S t a rti ng Agilent Connection E xpert. Loca ting the Ins trumen ts Agil ent Conne ction Ex per t ope ns with a “welcome screen” and w indo w simil ar to that s ho wn in Figur e 2- 6.
Software I nstallation and Conf iguration 2 L44 00 Use r’s Guid e 23 Figure 2 -6. Agil ent Connection Expert (ACE) Opening Wi ndow . T o search the network f o r ins tr ument s, click o n “Add Instr ume nt” lo cate d on th e C onne ctio n Ex p ert to ol b ar .
24 L 4400 U ser’ s G uide 2 Software Ins tallat ion and Configura tion Cli ckin g on “Find I nstrument s” (Fi gure 2- 8) opens t he sear ch wind ow . Clic king on “F ind No w ” perf or ms th e sear ch f or inst rument s on the LAN netw ork. Inst ruments f ound (disco vere d) on the netw ork (l ocal subne t) are indi cat ed as sho wn.
Software I nstallation and Conf iguration 2 L44 00 Use r’s Guid e 25 Figure 2 -9. V erifyi ng a Communication P ath to t he Instr um ent. The L AN I nstru me nt wind o w ide ntif ies t he in stru me nt’s hos t name , its IP addres s, its V ISA ad dress, and pr oduct number .
26 L 4400 U ser’ s G uide 2 Software Ins tallat ion and Configura tion Figure 2-10. Confi gured Instruments added t o LAN Ne twork. Interacti ve IO The In teract ive I O feat ure of A gil ent Connec tion Expert allo ws y ou to interact wit h the in str um ents b y send ing comman ds an d seein g the i nst ruments ’ respon ses.
Software I nstallation and Conf iguration 2 L44 00 Use r’s Guid e 27 Figure 2 -1 1. Selectin g an Instrument a nd S tarting Interactive IO . Iden tify ing the Inst rument s L4400 series i nst rument s are com prised of the carrie r , th e instrument sub- ass embly , and on sele cted in struments, a w iring terminal block.
28 L 4400 U ser’ s G uide 2 Software Ins tallat ion and Configura tion *IDN? Agilent T e chnologi es, L4421A, MY000 12345, 0.12-0.04-0.00-0. 00 SYST :C TY P? 1 Agilent T e ch nologies,L4421A , MY4400023 7, 2.
Software I nstallation and Conf iguration 2 L44 00 Use r’s Guid e 29 Fig ur e 2- 12. O pen ing the I nstr um ent W eb Int erfa ce. Select the instrument / open the W eb interfa ce.
30 L 4400 U ser’ s G uide 2 Software Ins tallat ion and Configura tion An exam p le of the W eb interface win do w i s s ho wn in Figure 2-13. Fig ur e 2- 13.
Software I nstallation and Conf iguration 2 L44 00 Use r’s Guid e 31 On t he W eb “welcome pa ge”, cl ick ‘View and M odify Conf igura tion’. Th is opens the c onfigu ratio n window sho w n in F igure 2- 1 4. Figure 2 -14. Vie wing LAN Configura t ion S ettings from the We b Interface .
32 L 4400 U ser’ s G uide 2 Software Ins tallat ion and Configura tion Clicking ‘Mo dif y Configu ratio n’ opens th e window sho w n in F igure 2- 1 5 whic h al lo ws y ou to edi t th e para mete rs s ho wn. Figure 2-15. Changing the Instrument LAN Interf ace Configurati on.
Software I nstallation and Conf iguration 2 L44 00 Use r’s Guid e 33 GPIB Con figura tion The L4400 seri es instrument s are a va ilabl e with an opti onal GPIB i nterface.
34 L 4400 U ser’ s G uide 2 Software Ins tallat ion and Configura tion Adding Ins trume nts to the GPIB Configur ation Highli ght th e GPIB inte r face (GP IB0) and select “ Add Instr um ent” on t he t ool bar . Sel ect the GPIB i nterface in the “A dd Inst r ument ” windo w and cl ick ‘OK ’.
Software I nstallation and Conf iguration 2 L44 00 Use r’s Guid e 35 V er ifying th e GPIB Pa th In the Agil ent Conn ection Expe r t wind o w , select and op en ‘Inte rac tive IO’. V er ify comm u nica tio n to the i nst r um ent by sen di ng the * ID N? comm a nd us i ng Send & Re ad below the com mand line.
36 L 4400 U ser’ s G uide 2 Software Ins tallat ion and Configura tion Figure 2-19. In this exa mple, t he GPIB addr ess i s set to 10. Figure 2- 1 9.
Software I nstallation and Conf iguration 2 L44 00 Use r’s Guid e 37 From the Agilen t Connection Expe rt main window , highlight the instru ment added and then clic k ‘ Change Proper ties ... ” . W ithin the configur able proper ties window , change the address of the instr ument from ‘9’ to ‘10’ and click ‘ OK ’.
38 L 4400 U ser’ s G uide 2 Software Ins tallat ion and Configura tion ‘10’, you can send the *IDN? command and verify the respons e from the instr um ent.
Software I nstallation and Conf iguration 2 L44 00 Use r’s Guid e 39 Firmware Updates Firmware upda t es f or the L4400 se ries inst ruments con sist of updat es to the instr ument ca rrie r fir m ware, and if necessar y , an updat e o f th e instr u ment modul e firmware.
40 L 4400 U ser’ s G uide 2 Software Ins tallat ion and Configura tion Downloa ding and Installing the I nstrume nt Firmware Once the util ity is saved, return to t he W e b page and click on: A gil ent F irmware Rev ision < re v isi o n n um b e r > Sa v e the fir mwar e fi le to a di rec tor y on y o ur PC (e.
Software I nstallation and Conf iguration 2 L44 00 Use r’s Guid e 41 Click ‘Ne xt’ un til the windo w shown in Figure 2-22 appea rs. Figure 2 -22. Firmware Update Utility Fir m ware File S electi on. 2 . U sin g the ‘Br o wse’ but ton, spe ci fy the p ath to th e fi rmwa re fi l e and then cli ck ‘Ne xt’.
42 L 4400 U ser’ s G uide 2 Software Ins tallat ion and Configura tion 3. Sel ect t he I / O interfac e to be used to upgrade t he i n st rument fi rmware an d then se lect ‘ N ext’ ( Fig ure 2- 23). Figure 2-23. Select ing the Inst rument Interface.
Software I nstallation and Conf iguration 2 L44 00 Use r’s Guid e 43 The firmwar e update proce ss t ak es seve ral minutes. Th e instrument ’s fron t pane l A TTN indi cator w ill f lash green whi le the u pdate i s in pr ogress. Figure 2-23. E ntering t he Ins trument Host Na m e or IP Address.
44 L 4400 U ser’ s G uide 2 Software Ins tallat ion and Configura tion Figure 2-24 . Instrument Firm ware Up da te Compl ete. 5. Once t he ca rrier upd at e AND ins t rument sub- assembl y update ( i f on e occur s) co mplete and no in stru me nt activ ity is indic ated by th e front pan el LEDs, cy cl e po wer on th e ins t rument.
Software I nstallation and Conf iguration 2 L44 00 Use r’s Guid e 45 Instrum ent Powe r-On a nd Def ault LA N Con figuration S tates The L4 400 s eries instrument s co vere d in t hi s user’ s gui.
46 L 4400 U ser’ s G uide 2 Software Ins tallat ion and Configura tion T able 2-4. De fault LAN Conf igurati on S et tings. LAN Parameter Default (Reset ) Set t ing DHCP ON Au tom at ic IP Ad dr es sing ON IP Set tings if DHCP Serv er Unavail able IP Address: 1 69.
47 Agi lent L44 00 LXI Clas s C In stru men ts Use r’ s Gu ide Agilent T echno logies 3 Ope rating and Pr ogramm ing L4400 In strumen t Fron t Pane l Overv iew 48 L4400 In strumen t Rear Panel O ver.
48 L4400 U s er’s G uide 3 Operatin g and Programming L4400 Ins trume nt Front Panel O vervie w LXI in s trumen ts w ithi n the the L 44 00 f amil y co ns is t o f th e in st r u men t carrier , an ins t rument sub- asse mbly , and if appl icable , a wir ing terminal bl ock.
Operating a nd Programming 3 L44 00 Use r’s Guid e 49 T able 3-1. L4 400 LE D Definiti ons and I nstrument S t atus. LED C ol or Conditio n AT T N LAN PWR Off Off Off Instrument is not turned on, and may or may not be conne cted to line power . AT T N LAN PWR flashing flashing Gree n Power-on/boot - u p.
50 L4400 U s er’s G uide 3 Operatin g and Programming L4 400 Ins tr um ent Rear Pan el Over v iew T h e r e a r p a n e l o f a n L 4 4 0 0 s e r i e s i n s t r u m e n t i s s h o w n i n F i g u r e 3 - 2 . N o t e that the ports and connectors avail able are b ased on t he i nstrument’s option s an d fun ctional ity.
Operating a nd Programming 3 L44 00 Use r’s Guid e 51 Ext T r i g/Alarms/D IO Port The external tri gger , alarms, and DI O port enable s you to synch ro nize scan ning be t w een a switchi ng ins t rument su ch as the L44 21A and an exte rnal DMM.
52 L4400 U s er’s G uide 3 Operatin g and Programming m u s t b e u s e d w h e n c o n n e c t i n g t h e L 4 4 0 0 i n s t r u m e n t d i r e c t l y ( w i t h o u t a swi tch or r outer) to the com puter . Se e “Con necti n g the L AN Cabl es” in Chapter 2 for more inf ormation.
Operating a nd Programming 3 L44 00 Use r’s Guid e 53 ROU Te i s the roo t k eyw ord of the command, M ONito r is a sec ond- lev el k ey- words , CH A Nn e l i s a t h ird - level keywo rd, an d so o n. A co lon ( : ) sep a ra te s a c ommand k eyw ord f r om a lo wer - le vel ke yw ord.
54 L4400 U s er’s G uide 3 Operatin g and Programming Co mman d Se pa ra tors A c olon ( : ) i s used t o separa te a command k eywor d fr om a lo w er - le ve l k ey- w or d. A bla nk sp ac e sepa r ates the k ey w or d fr om the fi rst para me ter .
Operating a nd Programming 3 L44 00 Use r’s Guid e 55 Specifying Channel Lists and Scan List s A command’ s channel list (< ch_list>) or scan list (<s can_list>) parame ter is used to specify a s ingle c hannel, multiple channels, or a range of channels.
56 L4400 U s er’s G uide 3 Operatin g and Programming Ta bl e 3-3. L440 0 Se rie s SC PI C omm and S umm ary . Subsystem Commands ST A T us *CLS *ESE <enable_ value> *ESE? *ESR? *SRE <enabl.
Operating a nd Programming 3 L44 00 Use r’s Guid e 57 I EEE- 488 Commands *CLS *ESE <enable _value> *ESE? *ESR? *IDN? *OPC *OPC? *RCL {1|2|3| 4|5} *RST *SA V { 1| 2|3|4|5} *SRE <enable _val.
58 L4400 U s er’s G uide 3 Operatin g and Programming SYST em (LAN Configuration) SYST em: COMMunicat e:LAN:AUTOi p { OFF|0 |ON|1} SYST em: COMMunicat e:LAN:AUTOi p? SYST em: COMMunicat e:LAN: BST a.
Operating a nd Programming 3 L44 00 Use r’s Guid e 59 L4400 Se ri es P rogramm ing Examp l es The L440 0 seri es Pr oduct Ref erenc e CD- R OM (part numb er 34989 - 13601) c ont a ins pr ogamming exampl es to fami li arize y ou with the o peration of sel ected L4400 instruments.
60 L4400 U s er’s G uide 3 Operatin g and Programming C# Once t he de velopmen t envir onment op ens, sel ect the ex ample sour ce code file ( .cs e xte nsion) o f the sam e name. Lo cate th e “ In iti aliz e ” function and chan ge the address str ing.
Operating a nd Programming 3 L44 00 Use r’s Guid e 61 Figure 3- 6 is an exa mple of the windo w used du ring pro g ram ex ecutio n to c hange the ad dress st ring. Figure 3 -6. Changi ng the Addr ess St ring (IVI-COM / Visua l Basic.NET). Visual Basic 6.
62 L4400 U s er’s G uide 3 Operatin g and Programming Locate “ Ini tWit hO pt ions ” and change the add ress st ring as sho wn in the exa mp le o f F ig ure 3 - 7 .
Operating a nd Programming 3 L44 00 Use r’s Guid e 63 Locate “ DE FAUL T_ LO GIC AL_A DD RE SS ” an d c hange the ad dress s tri ng as sh o w n i n t h e e x ampl e o f F ig ur e 3 - 8. Figure 3 -8. Cha nging the Instrument Addre ss S tring ( VISA Pr ograms).
64 L4400 U s er’s G uide 3 Operatin g and Programming Once t he Vi sual B as ic envi r onment ope ns, s tar t the pr og ram usi ng the “Start” arro w sho wn in Figure 3- 9 . The program pro mpts y o u fo r t he ins tr u me nt ad dr es s as sh own .
Operating a nd Programming 3 L44 00 Use r’s Guid e 65 Becaus e of t he s imilarity in produ cts, cod e an d appl ications ca n be l ever aged a nd ported be tw een an L4 400 ins trument an d it s 349 80A modul e co un t e rp a r t .
66 L4400 U s er’s G uide 3 Operatin g and Programming Environme ntal Operating Conditions Th e L44 00 se r ie s in st r u m en ts a r e d esi gn ed t o o p era t e i n a te mp er at ur e ran ge of 0 ° C to +55 ° C with no n - condensin g humid ity.
Operating a nd Programming 3 L44 00 Use r’s Guid e 67 The li ghtnin g- caused transien t o v erv olt ages that may occasional ly occur on mai n s po wer outlets ma y be as high as 2500 Vpeak .
68 L4400 U s er’s G uide 3 Operatin g and Programming • The si mu lati on sett ing is sto red in vo lati le memory and wi ll be lost whe n po we r is t urned off. T o re- e nable t he si mulati on mode after po w er has bee n off, you must s end the comma nd aga in.
Operating a nd Programming 3 L44 00 Use r’s Guid e 69 Th e fol lowin g co mm a nd cl ea rs a ll u ser- d e f in e d ch a nn e l l ab el s on t h e inst rum ent an d resto res the fac t ory - def ault label s.
70 L4400 U s er’s G uide 3 Operatin g and Programming • Each tim e yo u star t a ne w sc an, the i nst rument cle ars all readings (in cl u ding alarm da t a) stor ed in readi ng memor y from the pre vious sca n. Ther ef ore, the content s of memory are alwa ys fr om t he mos t recent sc an.
Operating a nd Programming 3 L44 00 Use r’s Guid e 71 • If a sc an in clu des a rea d of the total izer , the cou n t i s rese t eac h time it is r ead duri ng the sc an on ly when t he to t ali zer reset mode is enable d.
72 L4400 U s er’s G uide 3 Operatin g and Programming Scan T rigg er Source Usage : • L442 1A 40- Chann el A rmatur e Mu lti pl ex er • L4450A 64- Bit D igita l I/O (digita l input, counter chan.
Operating a nd Programming 3 L44 00 Use r’s Guid e 73 • Mx+B sc aling an d alarm lim its ( L4450A, L4452A) are appli ed to measu rements duri n g a scan an d a ll d at a is stored in v olati le me m ory.
74 L4400 U s er’s G uide 3 Operatin g and Programming Scanning on Alarm Usage : • L445 0A 64- Bit D igital I/ O ( counte r chan nels only) • L4452A Multifunction Module (tot alizer channels only) In this conf igura tion, t he instr ume nt ini tiates a scan each time a read ing cr osses an alarm limit on a chan nel.
Operating a nd Programming 3 L44 00 Use r’s Guid e 75 Not e : T o stop a sca n , send the ABORt co mmand. Externa lly T riggeri ng a S can In this conf igura tion, th e instr um ent sweeps t hrough th e sca n list once e ach time a lo w- goi ng TTL pulse is rece iv ed on the rear - panel Ext Tri g Inp u t line (pin 6).
76 L4400 U s er’s G uide 3 Operatin g and Programming • Y ou can store a t least 500,000 r eadings in memory and a ll re adings are automa ti cal ly t ime stam ped. If me mor y ov erf lo ws, the n ew reading s wi ll o verwrite the first (old est) read ings store d; t he most recent re adings are alwa ys pre serv ed.
Operating a nd Programming 3 L44 00 Use r’s Guid e 77 • Y o u can spe cify a sw eep count in con juncti on with a t rigg er coun t and a samp le co u nt . Th e t h r ee pa r ame t e rs op er at e i n d epe n den t o f on e an ot he r , a n d the to tal n umber of re adin gs re tu rne d will be the pro duc t o f the thr ee parameters .
78 L4400 U s er’s G uide 3 Operatin g and Programming Fig ur e 3- 12. Ch ann el De la y . • Y ou can se t the channel dela y to an y val ue betw een 0 sec onds and 60 seconds, with 1 ms resol ution. Y ou can sele ct a di f f erent dela y f or each channe l.
Operating a nd Programming 3 L44 00 Use r’s Guid e 79 Read i ng Fo r mat Usage : • L4450A 64- Bit Digit al I/O (digit al input, counte r chann els only) • L4452A Multifunction Module (digital inpu t, tot alizer channels only) Duri ng a sc an, the inst ru men t automatical ly adds a time stam p to all readings and st ores th em in me mor y .
80 L4400 U s er’s G uide 3 Operatin g and Programming • If yo u defi ne a scan l ist wi th the se q uen tial mo de enabled and later di s ab le the mode , th e sca n li st wi l l no t be reo r der ed ; ho w e ve r , th e sca n l is t will be trea ted as a non- seque n ti al l i st thereafter .
Operating a nd Programming 3 L44 00 Use r’s Guid e 81 • The Moni tor mode i s au to matical ly en abled on all ch an ne ls that are p ar t o f the ac tiv e s can li st.
82 L4400 U s er’s G uide 3 Operatin g and Programming Figure 3-1 3. S canni ng with External Instrument s. Fig ure 3- 1 4 shows the co nnectio ns requir ed to make a series (scan) of tw o- wire measureme nts (e.g . ohms, D CV) usi ng ABus1 of the L442 1A .
Operating a nd Programming 3 L44 00 Use r’s Guid e 83 This handshak e seq uen ce conti nues until all channels are scanned and t he p rogramme d numbe r of passes ( sweeps ) thro ugh t he s can li st are compl et e . Figure 3-1 4. E xterna l Scanning Using the L4421A a nd a DMM.
84 L4400 U s er’s G uide 3 Operatin g and Programming • Y ou can co nf igure t he list of c hanne ls for 4-wire exte rnal scan ning. Wh en enabl ed, the inst r ument automat icall y pair s ch annel n in Bank 1 with channe l n+20 in B an k 2 t o p rovid e t h e so urc e an d se n se co nn ect i on s.
Operating a nd Programming 3 L44 00 Use r’s Guid e 85 • If an alarm ev ent occurs on a channel as it is being sc anned, then that c hannel ’s alarm status is stor ed in inst rument memor y as the readin gs are ta k e n. Each read ing t hat is outside th e specif ied alar m limits is logged in memory.
86 L4400 U s er’s G uide 3 Operatin g and Programming • T w o TTL alarm out puts ar e avai l able o n the rear - panel Al ar ms connector (Figur e 3- 4). Y ou can use the se hard ware output s t o trig ger external alarm ligh t s, sir e ns , or s en d a T T L p u lse t o yo u r co n tro l sy st e m .
Operating a nd Programming 3 L44 00 Use r’s Guid e 87 Use CALC:COMP:MASK to designa te the “don’t c are” bits . Bits tha t you set to “0” in the m ask ar e ignore d. T o enabl e th e specif ied a lar m mod e, sen d th e foll owi ng c o mma n d.
88 L4400 U s er’s G uide 3 Operatin g and Programming Using t he A larm Outp ut Lin es As ment ioned, there are t wo T TL alarm lines a vailable on the rear - panel Alarms connector .
Operating a nd Programming 3 L44 00 Use r’s Guid e 89 T o clear the sp ecified output lin e (o r to cl ear both l ines), use one of the fo l l ow i n g c o m m a n ds . T o selec t t he out put configurat ion f or th e out put line s, use the f o llo wing c ommand.
90 L4400 U s er’s G uide 3 Operatin g and Programming Defining a Seque nce A se q uen ce defi nes a seri es of SCPI commands wi th an as sociated name. When the s equence is fir st de f ined , the commands are co mpi led an d the n s t o r e d i n a c o m p r e s s e d f o rm a t i n n o n - v o l a t i l e m e m o r y .
Operating a nd Programming 3 L44 00 Use r’s Guid e 91 L444 5A ROUTe:ClOSe (@<ch_list>) ROUTe:OPEN (@< ch_list >) ROUTe:MODule:WAIT {1|ALL} ROUTe:SEQuence:TRIGger[:IMMediate] < name &g.
92 L4400 U s er’s G uide 3 Operatin g and Programming • When a seq uence is defined , the s pecifi ed comman ds are check ed fo r pr oper s ynt ax and absolute pa rameter ran ge li m its. If an err or is de t ected duri ng compi l a tion, th e entir e sequence w ill b e dis car ded.
Operating a nd Programming 3 L44 00 Use r’s Guid e 93 Que rying t he S equ ence Defi nit ion Once y ou ha ve defined a sequence, you can quer y the de f initi on to r e v i e w w h a t S C P I c o m m a n d s h a v e b e e n a s s i g n e d .
94 L4400 U s er’s G uide 3 Operatin g and Programming • A seq ue nce ma y in vok e an other se quence. but ma y no t inv ok e its elf re cur s i v el y. In addi ti on , the nu mbe r of inv oc atio ns is l imi te d to fou r lev els of n est ing and th is i s e n f orced at the time of ex ecuti on.
Operating a nd Programming 3 L44 00 Use r’s Guid e 95 The fol lo wing pr ogram segment selects the alarm sour ce and configures the inst rument (L445 0A) to ex ec ute the sequence na med “TOTA L_1” when an a l a r m ( c o u n t o f 5 0 ) i s r e p o r t e d o n A l a r m 1 .
96 L4400 U s er’s G uide 3 Operatin g and Programming MYSEQ_1,PATH_DUT1,SW_PATH2 If no se q uen ce name s hav e been stored , a nul l st ring (“ ”) st ring is return ed.
Operating a nd Programming 3 L44 00 Use r’s Guid e 97 Error Conditions Usage : • Al l L 4400 Se ries I nst ruments When the L440 0 instrument’ s fr ont panel A TTN LED i s red, one or mo re c o m m a n d s y n ta x o r h a r d w a r e e rr o r s ha v e b e e n d e t e c te d .
98 L4400 U s er’s G uide 3 Operatin g and Programming Relay Cy cle Cou nt Usage : • L442 1A 40- Chann el A rmatur e Mu lti pl ex er • L443 3A Dual/Quad 4x8 Reed M atri x • L4437 A General P ur.
99 Agi lent L44 00 LXI C las s C Inst rum en ts Use r’ s Gu ide Agilent T echno logies 4 L44 21A 40- Chan nel Arm atu re Mult ipl exe r Low Fre que nc y Mu lt iple xe r Sw itch Ins tr ume nt 100 L44.
100 L4400 U s er’s G uide 4 L4421 A 40-Channel Armature Mult iplexer Low F reque ncy Mu ltipl exe r Switc h Inst rumen t Th e L4 4 21A low fr eq ue n cy mult i ple xer ( MU X) swi t ch mo d ule fea tur es two bank s of cha nnels th at prov ide broad mu ltiple xing and me asuring capa bilit ies.
L4421 A 40-Channel Arma ture Multip lexer 4 L44 00 Use r’s Guid e 101 T a ble 4- 1. L4421A S upported M ea surement Function s . L4421A SCP I Command Summa ry T ab l e 4 - 2 l is ts the ins t rume nt- spec ifi c SCPI comm an ds tha t app ly to th e L4421 A 40- chann el Armat ure Mult iple xer .
102 L4400 U s er’s G uide 4 L4421 A 40-Channel Armature Mult iplexer (Switc h Con trol) (Sequence O per at ion ) ROUT e: CHANnel: DELay:AUT O {OFF|0|ON|1}, (@ch _list) ROUT e: CHANnel: DELay:AUT O? .
L4421 A 40-Channel Arma ture Multip lexer 4 L44 00 Use r’s Guid e 103 L4421A Exam ple Program S e gments The fo llo wi ng sect ion s contain exa mple program s egment s of comm only use d instru me nt funct ions.
104 L4400 U s er’s G uide 4 L4421 A 40-Channel Armature Mult iplexer Example: Qu erying channels for open or close sta te The f o llo wing c omman d ret u rns a 1 ( true) or 0 (false ) state of ch annel 036.
L4421 A 40-Channel Arma ture Multip lexer 4 L44 00 Use r’s Guid e 105 the curren t ( I ) an d LO (L) t ermina ls of ABus1. Thr ough ABus1 and ABus 2 y ou can connect an y of the channe ls to a DMM for vol t age or res istance measu rements. Ref er to t he si mplifi ed sch ematic on page 1 06 .
106 L4400 U s er’s G uide 4 L4421 A 40-Channel Armature Mult iplexer L4421A Simp lified Sche matic Thi s dra wing sho w s the L4421 A conf igur ed as two i ndependen t 20- ch annel 2- w ir e M UXe s.
L4421 A 40-Channel Arma ture Multip lexer 4 L44 00 Use r’s Guid e 107 L4421A D-Sub Conne ctors Bank 1 Bank 2 Fo r or ien tati on, t he D- sub co nn ector end of t he mo du le is fa cin g yo u.
108 L4400 U s er’s G uide 4 L4421 A 40-Channel Armature Mult iplexer 34921T T ermin al Block This te rm inal bloc k with s crew- typ e connec tions is labele d with t he mo del number and the abb re via t ed modul e name.
L4421 A 40-Channel Arma ture Multip lexer 4 L44 00 Use r’s Guid e 109 3492 1 T T erm ina l Blo ck. Wa rn i ng -the i nsulation of the wiring u s ed with the termin al block mus t be rated for the hi ghest vol tage that will be present on the ter minal bl ock or on the ana log bus.
110 L4400 U s er’s G uide 4 L4421 A 40-Channel Armature Mult iplexer THIS P AGE INTENTIONALL Y BLANK.
111 Agi lent L44 00 LXI C las s C Inst rum en ts Use r’ s Gu ide Agilent T echno logies 5 L44 33A Dual /Qua d 4x 8 Reed M atrix Ma trix Swit ch I ns trume n t 112 L4433A S CP I Comm an d Su mmar y 1.
112 L4400 U s er’s G uide 5 L4433A Dual/ Qu ad 4x8 Ree d Matri x Matrix S witch Ins trume nt The L4433A Du al/Quad 4 x8 Reed Matri x swi tch off ers a conv enient wa y fo r y o u to connect m ultipl e instr u ment s to multip le poin ts on y our DUT .
L4433A Dual/ Qua d 4x8 Reed M atrix 5 L44 00 Use r’s Guid e 113 L4433A SCP I Command Summa ry Tab le 5-1 l ists the inst rument- spec ific SCPI co mmands that appl y to the L4433 A Dual/Quad 4x8 Reed Mat rix. T able 3- 3 ( Chapt er 3) li sts th e SCPI c ommands that appl y to all L4400 series instru ments.
114 L4400 U s er’s G uide 5 L4433A Dual/ Qu ad 4x8 Ree d Matri x L44 33A Exampl e Program Se gmen ts The follo wing s ections c ont ain ex ample progra m s egments of com monly us ed instr ument f unctio ns.
L4433A Dual/ Qua d 4x8 Reed M atrix 5 L44 00 Use r’s Guid e 115 Open ing and Closing Channels Ex ample: Clos ing and o peni ng mat rix channe ls ( two- wi re mo de ) Th e fo llow in g c ommands c lose and ope n channe ls 311 and 3 12 throu gh 315 of th e L443 3A i n 2 - w i r e m o d e .
116 L4400 U s er’s G uide 5 L4433A Dual/ Qu ad 4x8 Ree d Matri x Example: Qu erying channels for open or close sta te The f o llo wing c omman d ret u rns a 1 ( true) or 0 (false ) state of ch annel 204.
L4433A Dual/ Qua d 4x8 Reed M atrix 5 L44 00 Use r’s Guid e 117 N ote that the pr esence of in- r ush re sist ors on the analo g b usse s and c olumns re q uir e addi tional cons iderati on, and y ou must tak e care when link in g m ult ip le L 4 433 As .
118 L4400 U s er’s G uide 5 L4433A Dual/ Qu ad 4x8 Ree d Matri x L4433A Dual/Quad 4x8 R eed Matrix Hardware Descripti on Y ou can confi gure th e L4433 A dual/q uad 4x8 r eed mat rix f or 2- wire (dif ferential ) mode or 1- w ire (sin g le- ende d) mod e.
L4433A Dual/ Qua d 4x8 Reed M atrix 5 L44 00 Use r’s Guid e 119 One -Wi re M od e T o ph ysical ly conf igure t he mod ule in 1- wir e mode, use the 349 33T- 002 term in al block, or a c ompat ible st andar d or cus t om ca ble.
120 L4400 U s er’s G uide 5 L4433A Dual/ Qu ad 4x8 Ree d Matri x L4433A Simp lified Schem atic for T wo- Wire Mode Row 8 Row 7 Row 6 C2L C2L bypas s L C8L bypas s L C8 L C2H C2H bypas s H H L L L L .
L4433A Dual/ Qua d 4x8 Reed M atrix 5 L44 00 Use r’s Guid e 121 L4433A D-Sub Conne ctors for T wo- Wire Mode Matri x 1 Matri x 2 Fo r or ien tati on, t he D- sub co nn ector end of t he mo du le is fa cin g yo u. Mat rix 1 Ma t ri x 2 NOTE: • In this diag ram and t he tab le below , R repr esen ts “row ,” and C re presents “co lum n.
122 L4400 U s er’s G uide 5 L4433A Dual/ Qu ad 4x8 Ree d Matri x 34933T -001 T erminal B lock for T wo- Wire Mod e This te rm inal bloc k with s crew- typ e connec tions is labele d with t he mo del number and the abb re via t ed modul e name. NOTE All mo du les tha t c on nect t o the an alo g bu s a re in ter lo ck p rot ec ted .
L4433A Dual/ Qua d 4x8 Reed M atrix 5 L44 00 Use r’s Guid e 123 When using the 349 33T terminal bl ock f or 2- wire mo de, acces s is pro vided t o th e byp ass co lu m ns t hrou gh t he c olu m ns la be le d C 9 t h rou g h C1 6 . Follow th i s wi ring convent ion sho wn in the tabl e belo w f or both matri ces.
124 L4400 U s er’s G uide 5 L4433A Dual/ Qu ad 4x8 Ree d Matri x L4433A Simp lified Schem atic for One- Wir e Mode H H H H ABus1 DMM ( MEAS) 921 ABus2 DMM (SEN S) 922 ABus3 923 ABus4 924 H H L L H H.
L4433A Dual/ Qua d 4x8 Reed M atrix 5 L44 00 Use r’s Guid e 125 L4433A D-Sub Conne ctors for One- Wire Mode Matrice s 1 and 2 Matrice s 3 and 4 For or ienta tion, the D-s ub co nnect or end of th e modu le is facin g you.
126 L4400 U s er’s G uide 5 L4433A Dual/ Qu ad 4x8 Ree d Matri x 34933T -002 T erminal B lock for One- Wire Mode This te rm inal bloc k with s crew- typ e connec tions is labele d with t he mo del number and the abb re via t ed modul e name. NOTE All mo du les tha t c on nect t o the an alo g bu s a re in ter lo ck p rot ec ted .
127 Agi lent L44 00 LXI C las s C Inst rum en ts Use r’ s Gu ide Agilent T echno logies 6 L44 37A General Purpose Swit ch Ge n e ra l P u rp o s e S wi t c h I n s t ru m en t 128 L4437A S CP I Comm.
128 L4400 U s er’s G uide 6 L4437A Gene ral Pu rpos e Sw itch General Purpose Switc h Instrument The L4437 A General Purp ose (GP) switch ca n be use d to rou t e si gn als o r contr ol other s ystem dev ices.
L4437A Gene ra l Purpos e Switc h 6 L44 00 Use r’s Guid e 129 Fig ure 6-1. 5A Re l ay P o wer -Do wn State Jum per. WA R N I N G Do not conn ect the L4437 A direc tly to a mains p owe r outl et.
130 L4400 U s er’s G uide 6 L4437A Gene ral Pu rpos e Sw itch L44 37A SCPI Command Summary Table 6-1 lis t s the in strument-s pecific SCPI commands that apply to t he L4437A Gener al Purpose S w itch In strument. Table 3-3 ( Chapter 3) list s the SCPI commands that apply to al l L4400 seri es ins truments.
L4437A Gene ra l Purpos e Switc h 6 L44 00 Use r’s Guid e 131 L4437A Exam ple Program S e gments The fo llo wi ng sect ion s contain exa mple program s egment s of comm only use d instru me nt funct ions. Th e cha nn el a d dr es si ng sc h em e u s e d i n t he s e se g me n ts follow t h e for m 1ccc wher e cc c is th e cha nnel numb er .
132 L4400 U s er’s G uide 6 L4437A Gene ral Pu rpos e Sw itch Ex ample: Clea ri ng t he cy cle coun t for a rela y (a ll s wit ch modu les) T h e fo llowi ng comman d reset s the rela y cy cle coun t on channel s 7 an d 16.
L4437A Gene ra l Purpos e Switc h 6 L44 00 Use r’s Guid e 133 L4437A D-Sub Conne ctors Bank 1 Bank 2 For orie ntat ion, the D-s ub conn ector end o f the mo dule is f ac ing you .
134 L4400 U s er’s G uide 6 L4437A Gene ral Pu rpos e Sw itch 34937T T ermin al Block This te rm inal bloc k with s crew- typ e connec tions is labele d with t he mo del number and the abb re via t ed modul e name. L4 437A T ermin al Bl ock. Pads for user- suppl ied snubbe r circuit y to a lleviate re active tran sients.
135 Agi lent L44 00 LXI C las s C Inst rum en ts Use r’ s Gu ide Agilent T echno logies 7 Micr ow av e Swit c h/At ten u ator Dr iver L4445 A SC PI Com ma nd Sum mary 136 L4445 A Mi crowa ve Swit ch.
136 L 4400 U ser’ s G uide 7 L4445 A Microwav e Switch/At tenuator Driver L44 45A SCPI Command Summary Table 7-1 lis t s the in strument-s pecific SCPI commands that apply to t he L4445A M ic ro wav e Swi tch / A ttenuator Dri ver I nst rument. T able 3- 3 (Ch apter 3) l ist s the SCPI commands that appl y t o all L4400 seri es ins t rument s.
L4445A M icro wave Sw itc h/Atte nu ator Dr iver 7 L44 00 Use r’s Guid e 137 (Sequence O per at ion ) ROUT e: OPEN (@<ch_li s t>) ROUT e: OPEN? (@<ch_l ist>) ROUT e: OPEN:ALL 1 ROUT e: O.
138 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river L44 45A Microw ave Sw itch /Att enuator Dr ive r The L44 45A cons ist s of a driv er int e rface ins trument (L 4445A) and one or mor e re mote modu les (349 45EXT).
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 139 Figure 7- 1 sho ws the com ponents of t he L4445A micro wa ve sw itch/atte nuator driver conf igur ation. The L 4445A d river is sho wn co nnecte d to a sing le 34945 E X T remote modu le.
140 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Figure7- 2 is a l abele d dra w in g of the 34 945EXT remote module. Figure 7 -2. The 34945EXT Module . Each 34945EXT has an I/O Acc ess LE D used to in dicate t ransactio ns bet we en the L4 445A an d the 3 494 5EXT modul e.
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 141 Rec ommende d Swi tches and Attenua tors The re commended Agil ent swi t ches and atte nuators for us e with t he L44 45A ar e sho wn belo w . Inclu ded in the table is the dist ributi on boar d used f or ea ch switch or attenuator .
142 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Power Sup plies The switches an d atte nuators on the mas ter remot e modul e can be po wered fr om the L4445A or use an external po we r suppl y. All addit ional sla ve modul es must use an externa l po wer su pply.
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 143 Channel N umbering The L4445A u ses the f oll ow ing channel n umberi ng sch eme: 1< re m >< channel > wher e : rem is th e rem o te modu le be ing cont ro lled , a nd i s a sin gle d ig it i n the ra ng e of 1 to 8.
144 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Simple Swit ch Cont rol A ll exam pl es in th is cha p ter m ak e r efe ren ce to SC PI co mma nd s f or swi tc h contr ol.
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 145 Rem ote Mo du le Iden ti fiers A speci al channel number ing method ex ist s fo r use wi t h SCPI comma nds that op erate one or more ban ks of th e re mote modu le.
146 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Using S ingle Drive Switche s and At tenua tors Some micro wa ve switches require a single dri ve.
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 147 Using D ual Drive S witches a nd Att enuat ors Many micro wave switche s and attenuators ha ve a pair ed drive in put.
148 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Using Pu lse Drive To use t h e pu ls e dr ive m o d e, se nd t he ROUTe:CHANnel:DRIVe:PULSe:MODE ON com mand or pair two channels wit h the ROUTe:CHANnel:DRIVe:PAIRed: MODE command.
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 149 Long Exe cution T ime s When confi g uri n g long c ha nnel p ulse d rive t imes an d/or p ow er s uppl y recove r y times, be a w are th at the results ma y be long exe cution tim es.
150 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Swit ch st at e i s store d in t he in stru me nt. In co ntras t, t he ROUTe:OPEN? and ROUTe:CLOSe queries always che ck th e actual h a rdware state of th e switch f or veri f i ed c ha nn el s.
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 151 LED Drive The d ist ribut ion boa rds con t ain a ribbon cabl e header y ou can use to connect LEDs t o pr o vide a vis ual in dicati on of swi tch state. Th ese li nes reflect the state of th eir correspondin g ch annel’ s po sition indicator .
152 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Defa ult an d Rese t S tate s The L4 445A allo ws se ve ral types of reset and defaul t actions. M os t reset s rel y on s t ates sto red in non- v olat ile memor y on the remote modu les.
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 153 SYS T e m: P RE Set , *R ST , SY S T em :C PON a n d Po w er On Thes e actions drive t he chan nel s to their d efined.
154 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river This com ma nd uses s pecial ch annel ad dressing as desc ribed in “Remo te Modul e Iden tifiers ” on pa ge 14 5. This com ma nd requir es th e chan nel drive source be in order to allow exe cut i on ( ROUTe:RMODule:DRIVe:SOURce OFF ).
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 155 Y1150A The Y1150A supports t he Agil ent N18 1x seri es micr o wav e switch es sho wn belo w . U p to e ight swi tches in any comb inat ion can be co nnected to each di st ri bu tio n boa rd .
156 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Y1150A Connections Y1150A Sw itch C onnec tors SW1 Th rou gh SW 8 +VR is th e V o lta ge s o ur ce f or the R el ay +VI is the Vo ltage s ource for the LED Ind icator LED Co nnect ors Sw it ch Con nectors Pin Use Pin Use 1 GND 2 IND B 3N .
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 157 * 26 AW G re comm e nded for 5V coi l s wit ches Y1150A Switch Cont rol All s wi t ch e s ar e d riven in PAIRed mode Item Description Example Part N umbers Cabl e T ype 9 cond ucto r ribb on cab le, 0.
158 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Y1150A LED Connectors LED1 a nd L ED2 1 2 15 16 LED1 Con nector LED2 Co nnector Pin Use Pin Use Pin Use Pin Use 1 +VI 2 SW1 - A .
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 159 Y1151A The Y1151A suppo r ts up t o tw o of the A gilen t mi cr o wav e switches sh o w n be low . Y1151A Switc h Options S upport ed (R ec om m en de d op ti on s ar e s ha de d) .
160 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Y1151A Connections Y1151A Sw itch Conne cto r SW1 and SW 2 +VR is th e V o lta ge s o ur ce f or the R el ay +VI is th e V o lta.
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 161 Pin 1 Pin 1 Item De scripti on E xamp le Part N umber s Cabl e T ype 16 c ond uctor r ibb on ca ble, 0.050" p itch, 26 or 28 AWG s tran ded 3M 3801/ 1 6 (26 AWG ) 3M 3365/ 1 6 (28 AWG ) Y 1151A Co nnec tor 16 p in s ock et co nnect or , 0.
162 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Y1151A Switch Cont rol All c h an ne ls are sin g le dr ive . Path C losed Pa th Op en SW1 Path 1 RO UT: CL OS (@ xx 01 ) Cl os .
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 163 Y1151A LED Connectors LED1 a nd L ED2 1 2 15 16 LED1 C onnector LED2 C onnector Pin Use Pin Use Pin Use Pin Use 1 +VI .
164 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Y1152A The Y 1152 A supports one of t he 87xxx s w itch es and up to tw o of the Agile nt N181x swi t ches . Supported switches are sho w n belo w . Y1152A Switc h Options S upport ed (R ec om m en de d op ti on s ar e s ha de d) .
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 165 Y1152A Connections Y1152A Sw itch conne cto r SW1 (87204/0 6) LED Co nnect ors Sw it ch Con nectors Pin Use Pin Use 1+ V R 2 N .
166 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Y1152A Sw itch C onnec tor SW2 and SW 3 (N 181x) +VR is th e V o lta ge s o ur ce f or the R el ay +VI is the Vo ltage s ource for the LED Ind icator Pin Use Pin Use 1 GND 2 IND B 3 N.
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 167 16 Cond uctor Cable 9 Conduct or Ca b le Y1152A Switch Cont rol All c h an ne ls ar e drive n i n PAIRed mode. * For switches c onnecte d to S W1, n ote the pa th cl osed is ac com plished wi th the ROUTe:OPEN command.
168 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Y1152A LED Connectors LED1 a nd L ED2 2 11 5 16 LED1 C onnector LED2 C onnector Pin Use Pin Use Pin Use Pin Use 1 +VI 2 SW1 - Cl.
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 169 Y1153A T he Y115 3A s upp orts the a tte nu ators li s ted bel ow . U p to t w o of the attenua to rs may b e connecte d. Y1153A Attenuato r Options Sup ported (R ec om m en de d op ti on s ar e s ha de d) .
170 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river 8494/5/ 6 Y1153A Connections Option Name Option Number Description a n d Comments Fr equenc y Range le tt er su f fix in mod e l.
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 171 Y1153A Atten uato r connec tor P101 and P102 (84904/ 5/8) 84904/5/ 6/7 /8 Pin U se Pin Use 1 Secti on 1 Thru Li ne 2 Sec tion 1 Atte n 3 N.
172 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river 8494/5/ 6 Y1153A Attenuator Cont rol All c h an ne l are o per at ed i n PAIRed mode.
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 173 Y1153A LED Connectors LED1 a nd L ED2 2 11 5 16 LED1 Connect or LED2 Conne ctor Pin U s e Pin Use Pin Use Pin U se 1 +.
174 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Y1154A The Y1154A supports one of the t ransf er switch es li sted b elo w and up to six N181x swi t ches . Y1154A Switc h Options S upport ed (R ec om m en de d op ti on s ar e s ha de d) .
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 175 Y1154A Connections Y1154A Sw itch conn ec tor SW1 and SW 2 (8722 2) LED Co nnect ors Tr a n s f e r S w i t c h Con nectors Sw it ch C o nn e ct ors Pin U se Pin Use 1 + VR 2 + VI 3D r i v e A 4 I n d A 5D r i v e B 6 I n d B 7N .
176 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Y1154A Sw itch conn ec tor SW3 Through SW8 ( N18 1x) +VR is th e V o lta ge s o ur ce f or the R el ay +VI is the Vo ltage s ource for the LED Ind icator Pin Use Pin Use 1 GND 2 IND B 3N .
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 177 8722 2 Cable 9 Conduct or Ca b le Y1154A Switch Cont rol All cha nnels are operated i n PAIRed mode . Item Descri ption Example Part Numbers Cabl e T ype 10 co nduct or ri bbo n cabl e, 0.
178 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Y1154A LED Connectors LED1 a nd L ED2 2 11 5 16 LED1 Con nector LED2 Co nnector Pin Use Pin Use Pin Use Pin Use 1 +VI 2 SW1 - A .
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 179 Y1155A Th e Y1 155 A pr ovid es scr ew te r m in al c on n ect i on s c an su pp o r t t he A gil en t s wi tche s l i ste d bel o w . A dd it iona ll y , the scre w ter mina ls m ak e it ad aptab le to m ost any swi t c h.
180 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Y1155A Switc h Options S upport ed Recomm ended opt ions ar e shaded . Option Name Option Number Descr iption and Comments Fr equenc y Range V arious All opt ions su ppor ted Coil Voltage 011 + 5VDC +5V DC High est c oil curre nt re qu irem ent of al l coil volta ge opt ions.
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 181 Y1155A Connections +VR is th e V o lta ge s o ur ce f or the R el ay +VI is the Vo ltage s ource for the LED Ind icato.
182 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Y1155A Switch Cont rol Pair ed Op er ati ons* * PAIRed opera tion must be conf igur ed manu all y. The ROUTe:RMODule:BANK:PRESet does not conf igu re Y115 5A cha n nels for PAIRed opera tions.
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 183 Y1155A LED Connectors LED1 a nd L ED2 2 11 5 16 LED1 Con nector LED2 Co nnector Pin Use Pin Use Pin Use Pin Use 1 +VI .
184 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Simplifie d Connection Diagrams Sin gle D rive With S epar at e Pos iti on I ndi ca tor s Th e si mpli f i ed s c hem a tic be low il lu st rat e s t h e c on ne ct io n for a sin g le dri ve s witc h with s epar ate p osit ion ind ica tor s.
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 185 Pair ed Driv e Wit h S epar at e Pos iti on In dica tors T he sim pl ifi e d s chem ati c bel ow ill us tr ates the c o nnec tion f or a d ual dri ve s witc h with s epar ate p osit ion ind ica tor s.
186 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river Pair ed Dr ive With C om bi ned Po sit ion Ind ic ator s T he sim pl ifi e d s chem ati c bel ow ill us tr ates the c o nnec tion f or a d ual dri ve s wi tch with a n in tegra l po s i tio n i ndi ca tor .
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 187 Mount ing t he Re mot e Mo dule s Th e fi gure be l o w sho ws the di mens io ns of the rem o te modu le an d the l oc a ti on s of us able moun ting holes. 205. 54 38.3 5 114.
188 L 4400 U ser’ s G uide 7 L4445 A Microwav e Switch/At tenuator Driver SCPI Program ming E xamples Thes e pr ogramming exam ples pro vide y ou with SCPI command exam ples to use f or dri v in g the micr ow a ve swi tch modul es.
Mi cr o wa v e Sw it c h/ A t te n ua to r Dr iv er 7 L44 00 Use r’s Guid e 189 Example: Configuring a Single Drive Channel The f o llo wing exam ple i l lust rates th e se quence of comman ds to configure a singl e dri v e chan nel with con tinuous d rive.
190 L 4400 U ser’ s G uide 7 Microw a ve Switch/ A tt enuator D river THIS P A GE INTENTIONALL Y BLANK.
191 Agi lent L44 00 LXI Clas s C In stru men ts Use r’ s Gu ide Agilent T echno logies 8 L445 0A 64-Bi t Digital I/O with Me mory and Cou nter L4450 A SC PI Com ma nd Sum mary 192 L4450 A 64- Bit Di.
192 L 4400 U ser’ s G uide 8 L44 50A 64-B it D igit al I /O wit h Me mo ry an d Cou nter L44 50A SCPI Command Summary Ta ble 8- 1 l is ts th e i ns trum en t- spec ific SC PI co mma nd s that ap ply to the L4450A 64- Bit Digital I/ O and Counter in strumen t.
L4450A 64-Bit Digital I/O with Memory and Counte r 8 L44 00 Use r’s Guid e 193 CONFigur e: DIGita l:HANDshake: SYNChronous: STRobe[: SOURce]? (@< ch _lis t> ) CONFigur e: DIGit al: INT errupt:.
194 L 4400 U ser’ s G uide 8 L44 50A 64-B it D igit al I /O wit h Me mo ry an d Cou nter (Dig ital I/O) [SENSe:]MODule :COUNter:GA TE:THReshold[ :VOL T age] {<volt age>|MIN|MAX|DEF}, 1 [SENSe:.
L4450A 64-Bit Digital I/O with Memory and Counte r 8 L44 00 Use r’s Guid e 195 SOURce (Dig ital I/O) (External Clock Output) SOURce:DIGi tal :DA T A[:{BYTE|1 |WORD|2|L WORd|4}] <dat a>, (@<.
196 L 4400 U ser’ s G uide 8 L44 50A 64-B it D igit al I /O wit h Me mo ry an d Cou nter CALCulate (Dig ital Pattern Compare) (Alarm L imit ) (Measure- ment Sta t i s t i c s ) (MX + B Sc aling ) CA.
L4450A 64-Bit Digital I/O with Memory and Counte r 8 L44 00 Use r’s Guid e 197 ROUT e (Monitor) (Scanning) (Switch Control) (Sequence O per at ion ) ROUT e:MON itor:DA T A? ROUT e:MON itor:MODE { CH.
198 L 4400 U ser’ s G uide 8 L44 50A 64-B it D igit al I /O wit h Me mo ry an d Cou nter FOR Mat (Scanning) FORMat:BORDer {NORMal|SW APped} FORMat:BORDer? FORMat:READing: ALARm {OFF|0|ON|1} FORMat:R.
L4450A 64-Bit Digital I/O with Memory and Counte r 8 L44 00 Use r’s Guid e 199 L44 50A 64-Bit D igital I/O w ith Memory and Counter The L4450A has 6 4- bits o f general- purpose d igital I /O gr ouped i n 8- bi t chan nels wi th programmab le pol arit y , in put thres holds, and output lev els.
200 L 4400 U ser’ s G uide 8 L44 50A 64-B it D igit al I /O wit h Me mo ry an d Cou nter Basic Di gital I/O Ope rations Channel Num bering and Wid th The di gital chann els are num b ered by ban k; 101 throug h 104 and 201 t hro ugh 204 f or ban ks 1 and 2 r espect ivel y.
L4450A 64-Bit Digital I/O with Memory and Counte r 8 L44 00 Use r’s Guid e 201 T o r ead di gi tal d ata wi th mo re con tr ol ov er the cha nnel pa ramet ers, use the SCPI CONFigure and SENSe commands. The CONFigure c ommands se t up the d igital I/ O channel p arameters.
202 L 4400 U ser’ s G uide 8 L44 50A 64-B it D igit al I /O wit h Me mo ry an d Cou nter Y ou can se t a chan nel to output in either activ e dri ve or open c ollec tor conf igur ations . When set to ACTive , the mo dul e dri ve s the dig ita l li nes f or bo th high and lo w .
L4450A 64-Bit Digital I/O with Memory and Counte r 8 L44 00 Use r’s Guid e 203 T hi s co mm an d s eq ue nc e se ts the fir s t 8 b i t s ( ch a nn e l 1 0 1 ) to no rm al p o l a r i ty f or input and output o per ations, s et t he nex t 8 bit s (channe l 102 ) to inver ted po lari ty , and t hen c omb ine s the bits in to a 1 6- bi t c han nel.
204 L 4400 U ser’ s G uide 8 L44 50A 64-B it D igit al I /O wit h Me mo ry an d Cou nter The foll owin g ha n dshak e command set s the synch rono us hand shakin g mod e f o r th e channe ls in bank 1 .
L4450A 64-Bit Digital I/O with Memory and Counte r 8 L44 00 Use r’s Guid e 205 Synchronous Handsha ke Mode In th e syn chr onous handshak e mode, a s trobe or clock si gnal is used t o transf er dat a to or fr om an external dev ice. The str obe line (H1) is an outpu t a n d i s p u l s e d o n c e f o r e a c h t r a n s f e r .
206 L 4400 U ser’ s G uide 8 L44 50A 64-B it D igit al I /O wit h Me mo ry an d Cou nter Synchron ous Unbuffered Outputs For synchr on o us han dshak e unbuff ered ou tpu ts , th e H0 l ine indi cate s the d ir ect ion of the tr an sf er . Th is l ine is se t lo w to ind ic ate an out pu t op erat ion.
L4450A 64-Bit Digital I/O with Memory and Counte r 8 L44 00 Use r’s Guid e 207 Synchron ous Buffered Inputs Y ou can us e synch ronous mod e handsha ke with buff ered (memory) i npu t operat ions. (Buffere d operati ons are des cribed i n more d et ail beginn ing on page 210 .
208 L 4400 U ser’ s G uide 8 L44 50A 64-B it D igit al I /O wit h Me mo ry an d Cou nter Synchron ous Buffered Outputs Y ou can use syn chr onou s mod e han dshak e with buff ered ( memor y) out put op erations. ( Buff ered ope rations are described i n more d etail beginning on page 210 .
L4450A 64-Bit Digital I/O with Memory and Counte r 8 L44 00 Use r’s Guid e 209 Op tio n ally , you ca n p rovid e an exte r nal st robe inp ut on the H 2 l ine to co ntr ol the m emory transf ers. I f y ou pace the memor y in puts fr om an ext ernal cl ock, th e L44 5 0A will sen se th e le adi ng ed ge o f th e s tr obe and set the d ata.
210 L 4400 U ser’ s G uide 8 L44 50A 64-B it D igit al I /O wit h Me mo ry an d Cou nter Buffe red I/O Op erati ons Each of th e tw o banks on the L44 50A has its o wn memory that can be use d to store patterns to outpu t (t races) or t o store input patte rns.
L4450A 64-Bit Digital I/O with Memory and Counte r 8 L44 00 Use r’s Guid e 211 Se t th e numbe r of ti me s to o utp ut the trac e. Each trace can be outpu t once, mult iple t imes , or i nfinite ly. Th e SOURce:DIGital:MEMory:NCYCles comman d sets t he nu mbe r of tim es t o outpu t th e trac e.
212 L 4400 U ser’ s G uide 8 L44 50A 64-B it D igit al I /O wit h Me mo ry an d Cou nter Y ou can als o output t he trac e one sa mpl e at a time o n the data l ines us i ng th e SOURce:DIGital:MEMory:STEP command. Th is comman d output s one sa mple and th en puts the memory in the stoppe d st ate.
L4450A 64-Bit Digital I/O with Memory and Counte r 8 L44 00 Use r’s Guid e 213 Chec k the statu s of the trans fer . Y ou can use t he SENSe:DIGital:MEMory:DATA:POINts? query to return the number of sa mple s currentl y in memor y. Retr ieve th e ca ptur ed da ta.
214 L 4400 U ser’ s G uide 8 L44 50A 64-B it D igit al I /O wit h Me mo ry an d Cou nter • STOP : The me mor y outpu t is halte d on the r ising edge of th e i n te rrup t li ne . • GATE : The int er r upt line acts a a gate for the memo r y out put.
L4450A 64-Bit Digital I/O with Memory and Counte r 8 L44 00 Use r’s Guid e 215 F or out put oper ations, th e data sto red in memory is output as fo llo ws: • BYTE outp ut - fi rst byte in m emor y o n t he fir st han dsh ak e , ne xt byte in m e m o r y o n t h e s e c o n d h a n d s h a k e , a n d s o o n .
216 L 4400 U ser’ s G uide 8 L44 50A 64-B it D igit al I /O wit h Me mo ry an d Cou nter CONF:DIG:WIDT WORD, (@1101) CALC:COMP:DATA #HF00F, (@1101) CALC:COMP:TYPE EQUAL, (@1101) SENS:DIG:INT:MODE CO.
L4450A 64-Bit Digital I/O with Memory and Counte r 8 L44 00 Use r’s Guid e 217 MEAS:COUN:TOT? RRES, (@1301) T o tali ze r c oun ts b egi n as s oon a s the cha nne l is co nfig ure d f or the to tal iz e measure ment.
218 L 4400 U ser’ s G uide 8 L44 50A 64-B it D igit al I /O wit h Me mo ry an d Cou nter CONF:COUN:FREQ 1e-3, (@1301) SENS:COUN:INIT (@1301) SENS:COUN:FREQ? (@1301) SENS:COUN:PER? (@1301) SENS:COUN:.
L4450A 64-Bit Digital I/O with Memory and Counte r 8 L44 00 Use r’s Guid e 219 As vi ew ed fr om the rear pane l, t he pi ns in each conn ector are numb er ed as sh o w n be low .
220 L 4400 U ser’ s G uide 8 L44 50A 64-B it D igit al I /O wit h Me mo ry an d Cou nter P2 (Bank 2) Connector Pin Assignm ents Pin S ignal Pin Signal Pin Signal Pin Signal 1G N D C H 3 0 2 21 GN D .
L4450A 64-Bit Digital I/O with Memory and Counte r 8 L44 00 Use r’s Guid e 221 34950T T ermin al Block The opti onal 34950T terminal block has scre w type conne cti ons and the terminal are labeled with the channel and bi t in f or mation. L4 45 0A T e r mina l Bl ock .
222 L 4400 U ser’ s G uide 8 L44 50A 64-B it D igit al I /O wit h Me mo ry an d Cou nter THIS P A GE INTENTIONALL Y BLANK.
223 Agi lent L44 00 LXI C las s C Inst rum en ts Use r’ s Gu ide Agilent T echno logies 9 L44 51A 4-Ch annel Isol ated D/A Co nverte r with W aveform Memory L4451A 4-C hann el Isola ted D/A Con vert.
224 L4400 U s er’s G uide 9 L44 51A 4-Ch anne l I sola te d D /A Co nv erte r w ith Wa vefo rm Mem or y L4451A 4-Channel Isola ted D/A Con verter with W a veform Mem ory The L44 51A 4- Ch Is olated D/ A module (D A C modu le) has f our inde pende nt, iso lated D A C channels t hat ou tput DC vo ltage up to ± 16V o r DC cur ren t up to ± 20 mA.
L44 51A 4-Cha nne l I solat ed D/ A Con ver ter w i th W ave for m Me mor y 9 L44 00 Use r’s Guid e 225 The on- boa r d memo r y p ro vide s stor age f or yo u to cre ate u p to 32 v oltag e or cur r ent wavefo r m s . Y o u can app ly a di f fer en t wavefo r m t o ea ch ch an n e l to o ut put.
226 L4400 U s er’s G uide 9 L44 51A 4-Ch anne l I sola te d D /A Co nv erte r w ith Wa vefo rm Mem or y L44 51A SCPI Command Summary Table 9-1 lis t s the in strument-s pecific SCPI commands that apply to t he L4451A 4-Chann el I s ol ated D /A Co nve r te r in strument.
L44 51A 4-Cha nne l I solat ed D/ A Con ver ter w i th W ave for m Me mor y 9 L44 00 Use r’s Guid e 227 (External Clock Output ) SOURce:FUNCtion: CURRent:OFFSe t {<offs et >|MIN|MAX| DEF}, (@&.
228 L4400 U s er’s G uide 9 L44 51A 4-Ch anne l I sola te d D /A Co nv erte r w ith Wa vefo rm Mem or y L44 51A Exampl e Program Se gmen ts The pr ogramming e xamples bel o w pro v ide you wi th SCPI c ommand exa mp les to u s e for a ct io ns spec if ic to t he D AC mod u le.
L44 51A 4-Cha nne l I solat ed D/ A Con ver ter w i th W ave for m Me mor y 9 L44 00 Use r’s Guid e 229 Wa v e f o r m M o d e Example: Downloading a waveform t o mem ory and outputting waveform fro.
230 L4400 U s er’s G uide 9 L44 51A 4-Ch anne l I sola te d D /A Co nv erte r w ith Wa vefo rm Mem or y External Clock Exa mpl e: Se le ctin g an ex ter nal c loc k so ur ce an d sett ing a c loc k di visor Th e f irs t comman d select s the external clo ck source on D A C ch annel s 1 and 2.
L44 51A 4-Cha nne l I solat ed D/ A Con ver ter w i th W ave for m Me mor y 9 L44 00 Use r’s Guid e 231 L4451A Simpl ified Block Dia grams The f ollowing diag ra m sho ws how the module is generally conf igu red. F o r more de ta il on the inte rnal conf igurat ion of each D A C channe l, see th e n ext page.
232 L4400 U s er’s G uide 9 L44 51A 4-Ch anne l I sola te d D /A Co nv erte r w ith Wa vefo rm Mem or y The fol low i ng d i agram sho w s indi vi dual D A C chan nel c onfiguration .
L44 51A 4-Cha nne l I solat ed D/ A Con ver ter w i th W ave for m Me mor y 9 L44 00 Use r’s Guid e 233 34951T T erminal B lock Ea ch termi nal b loc k is l a bele d with th e mod e l numb er and the ab br e vi ated instru ment na me . L44 51A T er min al Bloc k.
234 L4400 U s er’s G uide 9 L44 51A 4-Ch anne l I sola te d D /A Co nv erte r w ith Wa vefo rm Mem or y THIS P AGE INTENTIONALL Y BLANK.
235 Agi lent L44 00 LXI C las s C Inst rum en ts Use r’ s Gu ide Agilent T echno logies 10 L44 52A Mul tifunct ion Mo d ule wi th DIO, D/ A, and T o tal ize r L4452A M ult ifunc tion Mod ule 236 L44.
236 L4400 U s er’s G uide 10 L4452 A Multifunct ion Mod ule wi th DIO, D/A, and Tota lizer L4452 A M ultif un ction M odu le The L445 2A Mu ltifunc tion M odul e wit h D IO, D/ A, and Totalize r com bin es f our 8- bit po r ts of digit al input/ou tput, a 100 kHz tot a lizer , and tw o ±1 2 v olt earth- ref e rence d anal og ou tputs.
L4452 A Multifunct ion Module wi th DIO, D/A, and Tota lizer 10 L44 00 Use r’s Guid e 237 L4452A SCP I Command Summa ry Ta bl e 10- 1 l is ts the in st r u men t- sp e ci f ic S CPI com man ds th at app ly to the L4452 A Multif uncti on Modul e instrument.
238 L4400 U s er’s G uide 10 L4452 A Multifunct ion Mod ule wi th DIO, D/A, and Tota lizer SOURce (Dig ital I / O) (DAC) SOURce : DIGita l :DA T A[:{BYTE|1|WO RD|2|L WORd|4}] <dat a>, (@<ch.
L4452 A Multifunct ion Module wi th DIO, D/A, and Tota lizer 10 L44 00 Use r’s Guid e 239 (Scanning) (Channel Labeling) (Sequence Operat ion) ROUT e: CHANn el:DELay {<sec onds>|MIN|MAX|DEF}, (.
240 L4400 U s er’s G uide 10 L4452 A Multifunct ion Mod ule wi th DIO, D/A, and Tota lizer TRI Gge r (Scannin g) (General) TRI Gger :CO UNt {<co u nt>| MIN|M AX| DEF |INFi nit y} TRIGger : COU.
L4452 A Multifunct ion Module wi th DIO, D/A, and Tota lizer 10 L44 00 Use r’s Guid e 241 L4452A Exam ple Program S e gments The f ollo wing sect ions con tain exam ple pr ogram seg ments of commonl y used in stru me nt functions .
242 L4400 U s er’s G uide 10 L4452 A Multifunct ion Mod ule wi th DIO, D/A, and Tota lizer Exa mpl e: C on fig urin g the to taliz e r for coun t This comm and c onf igures t he to t al iz er to co un t on th e ris ing ed ge o r fa lli ng edg e of the inp ut sig na l.
L4452 A Multifunct ion Module wi th DIO, D/A, and Tota lizer 10 L44 00 Use r’s Guid e 243 L4452A Simpl ified Block Dia gram DIO 32 B its Totalizer Coun t + Count - Channel 005 Ga te D/ A 1 Channel 0.
244 L4400 U s er’s G uide 10 L4452 A Multifunct ion Mod ule wi th DIO, D/A, and Tota lizer L4452A D-Sub Connector BI T 19 BI T 12 BIT 13 BIT 14 BIT 15 GND BI T 20 BIT 21 BIT 18 BIT 17 BI T 16 BIT 22.
L4452 A Multifunct ion Module wi th DIO, D/A, and Tota lizer 10 L44 00 Use r’s Guid e 245 34952T T erminal B lock Ea ch termi na l bl oc k is la bel ed with the model numb er a nd th e a bbrev iated modu le name. The 34952T pro vi des space f or brea dboar d and f or a con nector to contr ol a n exte rnal Opto - 22 s t and ard boa rd.
246 L4400 U s er’s G uide 10 L4452 A Multifunct ion Mod ule wi th DIO, D/A, and Tota lizer THIS P AGE INTENTIONALL Y BLANK.
Agilent T echno logies Ap pe nd i x A L44 51A and L 4452A Ca librat ion Proce dures Calibrat ion P roced ures 248 Ag ilen t T ech nologi es Ca lib rat ion Se rv ices 248 Cali b ratio n Interva l 24 8 .
248 L4400 U s er’s G uide A L4451A and L44 52A Calib ration Proc edu res Calibrat ion Procedures This section c on tains performanc e veri f icat ion an d adj ustment (cal ibration ) pro cedures for the L4400 S erie s L4451A 4- Chan nel I s olated D/A Co nvert er an d L4452A Multifunc tion Mo dule.
L4451A and L445 2A Cal ibr ation Pr oc edures A L44 00 Use r’s Guid e 249 T ime Req uired for Ca librati on The L4451A a nd L4452A can b e automat icall y c alib rated under com puter c ontrol .
250 L4400 U s er’s G uide A L4451A and L44 52A Calib ration Proc edu res Calibrati on Security This featu re allo ws y ou to enter a sec urity co de to prev ent acci dental or unau tho rized adjus tmen ts of t he ins tr um ents. Wh en you f irst r eceive your instr ume nt, it is sec ured.
L4451A and L445 2A Cal ibr ation Pr oc edures A L44 00 Use r’s Guid e 251 6 Se nd the comma nd C ALi br ati on:S ECur e :ST A T e ON to a ct ivate the ne w cod e an d s ec u re t h e i n str u me n t. 7 Turn off the ins t rument and r e- install the i nstrument sub- asse m bl y into t he in stru men t car rier .
252 L4400 U s er’s G uide A L4451A and L44 52A Calib ration Proc edu res Calibration Process The f ollo wing general procedu re is the reco mmende d method to comp lete a f u ll in st r um e nt c ali br ati on . 1 See “L4451A and L4452A Pe rformance Test Con sider at io n s.
L4451A and L445 2A Cal ibr ation Pr oc edures A L44 00 Use r’s Guid e 253 Performance V erification T ests U se the P erf orm an ce ve ri fica t io n te s t s to ver if y th e pe r f o rman ce of the inst ruments.
254 L4400 U s er’s G uide A L4451A and L44 52A Calib ration Proc edu res L4451A V erifica tion The test conn ection s fo r v erifyi ng the L4451A D A C output current and v olt age using an ex ternal DMM are s h o wn in Figur e s A- 1 an d A- 2. Note th at conne ctions are sho wn for a sing le channe l.
L4451A and L445 2A Cal ibr ation Pr oc edures A L44 00 Use r’s Guid e 255 Figure A-2. L4451A Output V olt a ge Conne ctions. Analog Output V e rification T est This proced ure is us ed to ch eck the cali brat ion of t he cu r rent an d v olt a ge output s on the L44 51A 4- channe l D A C.
256 L4400 U s er’s G uide A L4451A and L44 52A Calib ration Proc edu res V o lta ge Ou tp ut V e ri fica tion 1 Wi th the DMM dis con nec te d fr o m the L 445 1A, se t the DMM to th e 100V range or the lo we st range t h at can measur e 16V ( do no t use autorang e).
L4451A and L445 2A Cal ibr ation Pr oc edures A L44 00 Use r’s Guid e 257 T a ble A-2. L4451A Out put Current a nd V olt age Levels ( cont’d ) . Analog O utput Adjustments T h e f o l l o w i n g a n a l o g o u t p u t a d j u s t m e n t p r o c e d u r e s a r e t o b e p e r f o r m e d f ollo wing a 1 hou r w arm up peri od.
258 L4400 U s er’s G uide A L4451A and L44 52A Calib ration Proc edu res V oltage Adjustm ents 1 Wi th the DMM dis con nec te d fr o m the L 445 1A, se t the DMM to th e 100V range or the lo we st range t h at can measur e 16V ( do no t use autorang e).
L4451A and L445 2A Cal ibr ation Pr oc edures A L44 00 Use r’s Guid e 259 T able A-3. L4451A DAC V olt age Calibrati on Point s. Current Adj ust ments 1 Wi th th e DM M dis con ne cte d fr om th e L44 51A , s et the DMM to the 100m A range o r the lowe s t range that c an me asure 20 mA (do not use au t o ra n ge ) .
260 L4400 U s er’s G uide A L4451A and L44 52A Calib ration Proc edu res CALi br at ion :BEG in :C UR Rent 1, (@1 00 1) 6 Measu re t he D AC output on the D MM.
L4451A and L445 2A Cal ibr ation Pr oc edures A L44 00 Use r’s Guid e 261 L4452A Multifunc tion Mod ule V erificat ion and cal ibrati on of the L4452A M ult ifunct ion Mo dule i s li mited to chann els 6 and 7 which are the D A C (v oltage) output ch annel s.
262 L4400 U s er’s G uide A L4451A and L44 52A Calib ration Proc edu res this tim e. Ot her wise, re cord th e offse t which w ill be subtract e d from the s ubsequent v olt age mea sure ments. 3 Conne ct channel 6 of the L4452A as sho wn in Fi gure A- 3.
L4451A and L445 2A Cal ibr ation Pr oc edures A L44 00 Use r’s Guid e 263 4 Con n ect chann el 6 of the L445 2A t o the DMM as sho w n in Figure A-3.
264 L4400 U s er’s G uide A L4451A and L44 52A Calib ration Proc edu res THIS P AG E INTENTIONALL Y BLANK.
Index L44 00 Use r’s Guid e 265 Num eri cs 34921 T external refe rence , 110 temperature sensor , 110 term inal b lock , 110 34945 EXT ba nk n u m beri n g , 14 9 des cr ip ti on , 144 dim ensio ns .
266 L 4400 U ser’ s G uide Index dis tr ib ut ion bo ard Y11 50A (L 4445 A) , 161 Y11 51A (L 4445 A) , 165 Y11 52A (L 4445 A) , 170 Y11 53A (L 4445 A) , 175 Y11 54A (L 4445 A) , 180 Y11 55A (L 4445 .
Index L44 00 Use r’s Guid e 267 L4433A exa mple p rogram seg ments , 11 6 L4433A h ardware description , 12 0 L4433A instrum ent overview , 114 L44 33A SC PI co mmand su mm ary , 115 L4433A simplifi.
268 L 4400 U ser’ s G uide Index L44 21A , 10 9 L4433A (o ne-wire mode) , 12 7 L4433A (t wo-wire mode) , 123 L44 37A , 13 5 L44 50A , 22 4 L44 51A , 23 2 L44 52A , 24 4 pol lu ti on de gree , 2 pol .
Index L44 00 Use r’s Guid e 269 U un se cu rin g ca li b ra ti o n , 25 0 upda ting firm ware , 39 user-defined labels , 68 V ventil ation , 5 verific ation L44 45A , 15 5 vie wing a larm data , 87 .
An important point after buying a device Agilent Technologies L4400 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Agilent Technologies L4400 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Agilent Technologies L4400 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Agilent Technologies L4400 you will learn all the available features of the product, as well as information on its operation. The information that you get Agilent Technologies L4400 will certainly help you make a decision on the purchase.
If you already are a holder of Agilent Technologies L4400, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Agilent Technologies L4400.
However, one of the most important roles played by the user manual is to help in solving problems with Agilent Technologies L4400. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Agilent Technologies L4400 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
