Instruction/ maintenance manual of the product RS-232C NEC
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(1/5 0) Externa l Con trol N E C L C D M onit or 1. Ap p li cation This docu me nt defin es the commun ic atio ns m etho d f or control of the NEC LCD monitor , Mult iSync X4 61UN /X4 61HB /X4 31BT /P4 01 /P461 /P52 1 /P701 /S40 1 /S461 /S5 21 and MULTE OS M401 /M 461 /M52 1 when using an extern al c ontrol ler .
(2/5 0) 4. Co mmuni cat ion Format The co mman d pack et con s ists of f our parts, Hea der, Me ssag e, Che ck c ode an d Del imiter . Seq uence of a typic al p rocedur e to contr ol a monito r is as fo llow s, [A contro ller and a mon itor, t wo-w ay com muni cation comp ositio n fi gure] 4.
(3/5 0) 2 nd by te) R es erv ed: R es e rved for fu ture exten sion s. On this m onit or, it mus t be AS CII '0'(30 h). 3 rd byte ) Dest inat ion: D estin ation equi pment ID.
(4/5 0) 5 th by te) M es sag e T yp e: (Case sensi tive .) Refe r to s ec tion 4 .2 “ Messag e bloc k fo rmat ” for more de tail s. ASC II 'A' (41 h): Co mman d. ASC II 'B' (42 h): Co mman d reply . ASC II 'C' (43 h): Ge t cu rrent p aram eter f rom a monit or.
(5/5 0) Me ssa ge fo rm at of th e “ Set p aram eter ” is a s foll ows, Refe r to s ec tion 5 .3 “ Set pa ramete r ” for more detai ls. 4 ） Set Param eter reply The monit or r eplies wit h this mess age fo r a confirm atio n of t he “ Se t para meter mes sage ” .
(6/5 0) Foll ow ing is an ex ampl e of a Che ck c ode (B CC) calcula tion . Che ck cod e (B CC) D 17 = D 1 xor D 2 xor D 3 xor … xor D 14 xo r D 15 xo r D 16 = 3 0 h x o r 4 1 h x o r 3 0 h x o r 4 5 h x o r 3 0 h x o r 4 1 h x o r 0 2 h x o r 3 0 h x o r 3 0 h x or 31h xor 30h xo r 30 h x o r 3 0 h x o r 3 6 h x o r 3 4 h x or 03h = 7 7 h 4 .
(7/5 0) 5. Me ss age type 5.1 Ge t cu rr ent Parameter from a m onitor. Send t his me ssag e when you want to g et the sta tus of a mo nitor. For the stat us tha t you want to ge t, spe ci fy the “ OP code pa ge ” t he “ OP code ” , refe r to “ App endix A.
(8/5 0) Thes e byte s indi ca te a result of the reque sted comman ds a s foll ows, 00h: N o Er ro r. 01 h: Unsupp orte d o pe rati on with this mo nito r or unsu p port ed operat ion und er cur r ent cond ition. Thi s resu lt c ode fr om t he moni tor is enc oded to ASC II c haract ers.
(9/5 0) This O P co de pag e data must be e ncod ed to ASCI I chara cter s. Ex. ) The byte data 02h must be enc oded t o AS CII '0' and '2' ( 30h and 32 h). Ref er to the Operat ion code ta ble. 4 th -5 th byte s) OP code : Oper atio n code Thi s OP c ode data m ust be enco ded to ASC II c haracte rs.
(1 0/5 0) ASCI I '0'' 0' (30 h, 30h ) : Set par amet er ASC II '0' '1' (30h, 31h) : Momen tary Lik e Auto Set up fun ctio n, that aut omatic ally change s th e para mete r. 10 th -13 th byte s) Max . va lue: M axim um val ue t hat mo nitor can a ccep t.
(1 1/5 0) Bit 5- 2 R e s e r v e d ( D o n ' t c a r e ) B i t 1 1 : P o s i t i v e H o r i z o n t a l s y n c p o l a r i t y . 0 : N e g a t i v e H o r i z o n t a l s y n c p o l a r i t y . B i t 0 1 : P o s i t i v e V e r t i c a l s y n c p o l a r i t y .
(1 2/5 0) Chec k code BC C: Blo ck C hec k C od e R e f e r t o t h e s e c t i on 4.5 “ Che ck cod e ” for a BCC calc ulatio n. Del imiter CR (0Dh): End of pa cket Ste p 2. Th e monitor rep lies with curren t Bright ness setting and capabili ty to s uppor t this operat ion.
(1 3/5 0) CR (0 Dh) : En d o f p ac ke t Step 4 . Th e moni to r re p lies with a m essage for confir mati on. Head er SOH (01h) : St art Of Hea der '0' (30h) : Re served '0' (30h) : Me ssage rece iver is the contr olle r. Mon itor I D: I ndicat e a replyin g Mo nitor ID.
(1 4/5 0) The fo llow in g sh ow s th e procedur e fo r read ing the tem pera tures from the s ensor s. Ste p 1. S elec t a te mper ature s enso r whic h yo u want to r ead. Head er SOH (01h) : St art of Hea der '0' (30h) : Re served Mon itor I D: S pecify the Monito r ID which you want t o ge t a va lue.
(1 5/5 0) De lim ite r CR (0 Dh) : En d o f p ac ke t Step 3 . Th e cont ro ller requests the monito r to send t he t empera ture from the s electe d se nsor.
(1 6/5 0) Chec k code BC C: Blo ck C hec k C od e R e f e r t o t h e s e c t i on 4.5 “ Che ck cod e ” for a BCC calc ulatio n. Del imiter CR (0Dh): End of pa cket 7. Power con tro l pr ocedure 7.1 Pow er sta tus r ead 1) T he con tr olle r requ e sts the m onit or to repl y a cur rent power sta tus.
(1 7/5 0) 0001 : ON 0002 : Stan d- by ( po wer s ave) 000 3: Sus pend (powe r sa ve) 000 4: OFF (sa me as IR p ower of f) ETX (03h) : En d of M essa ge Chec k code BCC : Bloc k Ch eck Co de R e f e r t o t h e s e c t i on 4. 5 “ C heck c ode ” f or a BC C ca lculat ion.
(1 8/5 0) '0'- '0 ' (3 0h , 30 h) : Re s ult code. N o e r r o r . ' C ' - ' 2 ’ , ' 0 ' - ' 3 ' - ' D ' - ' 6 ' (43h, 32 h, 3 0h, 33 h, 4 4h, 36h ): p ower c ontr ol rep ly co mmand The monit or r eplies sam e as po wer contro l co mmand t o th e cont roll er.
(1 9/5 0) 'B' (4 2h): M essa ge typ e is "Comm and reply" N-N : Mess age length Ex. ) The byte data 20h is enco ded to ASC II c haracte rs ' 2' and '0' (32h and 3 0h). Not e.) Th is l ength incl udes ST X an d ETX.
(2 0/5 0) No te .) Th e maxi mu m data le ng th that can be writt en to the monit or at a t ime is 32bytes. Ex. ) The byte data 20h is enco ded as ASC II c haracte rs ' 2' and '0' (34h and 3 0h). Mes sage STX (02h) : St art of Mes sage '0' -'0': Resu lt cod e.
(2 1/5 0) 'C'- '3'-'1 '-'1 ' ( 4 3 h , 3 3 h , 3 1 h , 3 1 h ) : D a t e & T i me read rep ly com mand 'YY '-'MM' -'DD '-&apos.
(2 2/5 0) Me ssa ge STX (0 2h): S tart o f Me s sage 'C'- '2'-'1 '-'2 ' ( 4 3 h , 3 2 h , 3 1 h , 3 2 h ) : D a t e & T i me writ e co mmand 'YY '.
(2 3/5 0) ST: Da te & T ime St atus command '0' -'0'(3 0h, 30h): No e rror '0' -'1'(3 0h, 31h): Erro r 'YY '-'MM' -'DD '-&apos.
(2 4/5 0) '0 '-' 8'( 30 h, 38 h): M es sag e le ngt h M e s s a g e STX (0 2h): S tart o f Me s sage 'C' -'2'-' 2'-' 1' (43 h, 3 2h, 32h , 31 h): Sc hedu le read req uest c omma nd. PG: Progr am N o.
(2 5/5 0) '0 '-' 1'( 30 h, 31h ): VG A '0 '-' 2'( 30 h, 32h ): RG B/ HV '0 '-' 3'( 30 h, 33h ): DV I '0 '-' 5'( 30 h, 35.
(2 6/5 0) Chec k code BC C: Blo ck C hec k C od e R e f e r t o t h e s e c t i on 4.5 “ Che ck cod e ” for a BCC calc ulatio n. Del imiter CR (0Dh): End of pa cket ***Following command also can be used for to keep backward compatibility, in order to read the setting of the Schedule.
(2 7/5 0) '0 '-' 0'( 30 h, 30 h): 0 0 | '1'- '7 '(31 h, 37h ): 23 ( =17h) '1' -'8'(3 1h, 38h): ON t imer is n't set.
(2 8/5 0) This command is used in order to write the setting of the Schedule. 1) The controller requests the monitor to write Schedule. Head er Mess ag e Check co de Deli miter SOH- '0 '-Mo .
(2 9/5 0) WD: We ek s et ting bi t 0 : M on da y bit 1: Tue sd ay bit 2: Wed ne sday bi t 3 : T hu rs day bi t 4 : F ri da y bi t 5 : S at ur day bi t 6 : S un da y EX .
(3 0/5 0) 2) T he mon it or r ep lies a data fo r co nfirma tion . Head er Mess ag e Chec k code Del imiter SOH -'0'-' 0'-M onitor ID-'B'-' 2'-' 8' ST.
(3 1/5 0) bit 1: Tue sd ay bit 2: Wed ne sday bi t 3 : T hu rs day bi t 4 : F ri da y bi t 5 : S at ur day bi t 6 : S un da y EX . '0 '-' 1'( 30 h, 31 h): M on day '0'- &.
(3 2/5 0) SOH (0 1h): S tart O f He a der '0' (30h) : Re served Mon itor I D: S pecify the Monito r ID of wh ich you wan t to chang e a settin g. Ex. ) If M onit or ID is ' 1', spe cify 'A'. '0' (30h) : Me ssage send er is t he c ontrol ler.
(3 3/5 0) ***Following command also can be used for to keep backward compatibility, in order to write the setting of the Schedule. 1) The controller requests the monitor to write Schedule.
(3 4/5 0) bi t 4 : F ri da y bi t 5 : S at ur day bi t 6 : S un da y EX . '0 '-' 1'( 30 h, 31 h): M on day '0'- '4 '(30 h, 34h ): Wed n esday '0' -&ap.
(3 5/5 0) | '1'- '7 '(31 h, 37h ): 23 ( =17h) '1' -'8'(3 1h, 38h): Off timer i sn't set. OFF _MIN: Turn off tim e (min ute) '0'- '0 '(30 h, 30h ): 0 | '3' -'B'(3 3h, 42h): 59 ( =3Bh) '3' -'C'(3 3h, 43h): Off timer i sn ’ t set.
(3 6/5 0) PG-E N: Ena bl e/Di sa ble S chedule d ata PG: Progr am N o. '0' -'0'(3 0h, 30h): Prog ram No. 1 | '0' -'6'(3 0h, 36h): Prog ram No.
(3 7/5 0) SOH (0 1h): S tart o f He a der '0' (30h) : Re served Mon itor I D: S pecify the Monito r ID which you want t o ge t stat us. Ex. ) If M onit or ID is ' 1', spe cify 'A'. '0' (30h) : Me ssage send er is t he c ontrol ler.
(3 8/5 0) 12. S erial N o. & M odel Name Read 12. 1 Se ria l No. R ead This command is used in order to read a serial number. 1) T he con tr olle r requ e sts the m onit or to read a seri al n umber.
(3 9/5 0) SOH- '0 '-Mo ni tor ID-' 0'- 'A'-'0' -'6' STX- 'C '-'2 '- '1'- '7 '-ET X BC C CR Head er SOH (01h) : St art Of Hea der '0' (30h) : Re served Mon itor I D: S pecify the Monito r ID which you want t o ge t Mode l Na me.
(4 0/5 0) 1) T he con tr olle r requ e sts the m onit or to set the con diti on of secu rity l ock. Head er Mess ag e Che ck cod e Del imiter SOH -'0'-M onit orID-' 0'-' A&apo.
(4 1/5 0) 'C'- '3'-'1 '-'D ' ( 4 3 h , 3 3 h , 3 1 h , 4 4 h ) : S e c u r i t y Lock Co ntro l repl y co mmand ST- EN: Lo ck c onditi on r esult d ata ST: St a.
(4 2/5 0) A ppendix A. Opera tion Code (OP code) Table Item OP code page OP c ode Pa rame ter Rema rks Brig htn e ss 00 h 10 h 0: dar k | 100( 64 h): br ight Cont ra st 00h 12h 0: low | 100( 64 h): hi.
(4 3/5 0) It em OP co de page OP co de Pa ra me ter Re ma rk s Am bie nt Br igh tne ss Lo w 10 h 3 3h 0: da rk | 100( 64 h): br ight Am bie nt Br igh tne ss High 10 h 3 4h 0: da rk | 100( 64 h): br ight Ge t Cu rre nt Il lum ina nc e 02h B4h 0: | Max.
(4 4/5 0) It em OP co de page OP co de Pa ra me ter Re ma rk s Zo om V-Po si tion 02h CD h 0: D ow n si de | Ma x.: Up s id e Aspe ct 02h 70h 1: N orma l 2: Fu ll 3: Wi de 4: Zo om 5: Tr im Wi de: A/ V mod e onl y (e xc.
(4 5/5 0) It em OP co de page OP co de Pa ra me ter Re ma rk s PIP Mo de 02h 72h 1: O ff 2: P IP 3: P OP (4: St ill) 5: Si de by s ide (asp ec t) 6: Si de by s ide (Ful l) 7: PO P a sp ec t M ain 8: P.
(4 6/5 0) It em OP co de page OP co de Pa ra me ter Re ma rk s OSD Tu rn O ff 00h FCh 0- 1: Do no t se t. 2: 1 0s 3: 1 5s | 48: 24 0s 5s ec/ ste p H Posi ti on 02 h 3 8h 0: Le ft | MA X.
(4 7/5 0) It em OP co de page OP co de Pa ra me ter Re ma rk s Fa n C ont ro l 02h 7D h 0 : N on e 1: Au to( No o ffs et) 2: F or ced ON 3: Au to( of fs et -2) 4: Au to( of fs et -4) 5: Au to( of fs et -6) 6: Au to( of fs et -8) 7: Au to (o ffs et - 10) Of fse t af f ec ts to a se lec ted se nso r.
(4 8/5 0) It em OP co de page OP co de Pa ra me ter Re ma rk s SY NC Terminate 02h E1h 1: H i(2. 2k ohm) 2: L o( 75oh m) DVI Mo de 02h CFh 1: D VI-P C 2: D VI -HD BNC Mo de 10h 7Eh 0: N o op er ate 1:.
(4 9/5 0) It em OP co de page OP co de Pa ra me ter Re ma rk s Pict ur e Mo de 02h 1Ah 1: s RGB 3: H i- Brig ht 4: St and ar d 5: Ci nem a 6: I SF -Day 7: I SF -Nig ht 11 : A mbi en t- 1 12 : A mbi en t- 2 sR GB: PC m ode o nly Ci nem a: A/ V mod e onl y ISF- Da y: ISF- Ni ght: Ea ch needs an ad jus tme nt by ISF.
(5 0/5 0) All data are subject to change without notice. (Rev is ed a t Mar. 25 /201 0) Copyright 2004-2009 NEC Display Solutions, Ltd. All Right Reserved This doc u ment provides the t ec hnica l info r mation f or user s. NEC Display Soluti ons, Lt d.
An important point after buying a device NEC RS-232C (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought NEC RS-232C 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 NEC RS-232C - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, NEC RS-232C you will learn all the available features of the product, as well as information on its operation. The information that you get NEC RS-232C will certainly help you make a decision on the purchase.
If you already are a holder of NEC RS-232C, 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 NEC RS-232C.
However, one of the most important roles played by the user manual is to help in solving problems with NEC RS-232C. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device NEC RS-232C 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
