Agilent TechnologiesメーカーL4400の使用説明書/サービス説明書
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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 .
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