【文章內容簡介】 odes ( relay and discr et e elect ronic cir c uit s) ar e t hese f at al f laws: (1) cannot adapt o t he plex logic cont r ol, ( 2) only f or t he cur rent pr oj ect , t he lack of patibilt y and ( 3) not r ef or ming t he system wit h equipm ent im provement s. Spring f or t he developm ent of China39。s m odern indust rial aut om ation t echnology t he substantial incr ease in t he level of indust r ial aut om ation, plet ed the per fect relay of t he puter t oo much. I n t erm s of cont roling t he puter showed his t wo gr eat advant ages: (1) each of t he har dwar e can be inst aled on one or m or e m icropr ocessor s。 ( 2) t he of ficial designer of t he soft war e wr it ing cont ent cont rol is all about . Now in sever al ways in t he cont ext of indust r ial aut om ation can of t en be seen in t hr ee ways: ( 1) Pr ogram mable Logical Cont roler ( r efer red t o as I PC) 。 ( 2) Dist r ibut ed Cont r ol System ( DCS f or shor t) , and ( 3) t he Pr ogramm able Logical Cont r oler ( PLC f or short ). . 2 PLC and t he IPC and DCS contr ast contr ast 1, each of t he thr ee t echnologies of origins and developm ent r equir ements f or f ast dat a processing m akes it invent ed t he puter. The m en br ought in t er m s of har dware t here, using a high level of st andardizat ion, can use mor e patibilt y t ools, is a r ich sof t war e r esources, especially t he need f or im m ediacy in oper at ional syst ems. So t he put er c an ef fectively cont rol is used t o cont r ol and m eet it s speed, on t he vir t ual m odel, r eal t im e and in put ational r equir ement s. Dist ribut ed syst em st art ed wit h a cont r ol system for indust rial aut omatic inst r ument used t o contr ol, whereas now it is successf uly developed int o indust r ial cont rol puter used as a cent ral colect ion and dist r ibut ion syst em and t r ansit ion of dist r ibuted contr ol system in analogue handling, loop cont r ol, has begun t o r ef lect t he use of a huge advant age. Though dist r ibuted system has gr eat advantages in loop r egulat ion, but only as a m eans of cont inuous pr oces s contr ol. Optim izat ion of PLC is t he cor r esponding r elay needs was bor n, it s m ain use in t he wor k or der cont rol, ear ly pr im ar y is r eplaced r elay t his hulking syst em, f ocused on t he swit ch contr oling t he r unning or der of f unct ions. M arked by t he micr oprocessor in t he ear ly 1970 of t he 20t h cent ury em erged, m icr o electr onics t echnology has developed r apidly, people soon m icr oelect ronics pr ocessing t echnology wil be used in t he Pr ogr am mable Logical Cont r oler ( t hat is2 3． 城市用地 。 。 城市用地分類采用大類、中類和小類三個層次的分類體系，共分10 大類， 46中類， 73小類。城市用地分類和代碼應符合《城市用地分類與規(guī)劃建設用地標準》（ GBJ13790）表 。 和鎮(zhèn) 總體規(guī)劃 、分區(qū)規(guī)劃 用地匯總表和 城市 建設用地平衡表采用《城市用地分類與規(guī)劃建設用地標準》（ BGJ13790）附錄三的附表一和附表二的格式。 ，按批準的詳細規(guī)劃執(zhí)行；尚無批準的詳細規(guī)劃的，按總體規(guī)劃的《各類建設用地適建范圍表》執(zhí)行。 4．居住用地 居住用地的選址應根據(jù)城市總體規(guī)劃、分區(qū)規(guī)劃和控制性詳細規(guī)劃加以確定，應保障居民適宜的居住生活環(huán)境，經濟、合理、有效地使用土地和空間。 居住用地 選址宜具有良好的建設條件，防止洪澇、地質等自然災害的威脅。 居住用地布局和規(guī)劃設計應符合《城市居住區(qū)規(guī)劃設計規(guī)范》（ GB5018093， 2020年版）的規(guī)定。 ： M anipulat or is now used as a indust r ial r obot s in use, t he cont rol obj ectives of ten appear of t en in indust r ial aut om ation. I ndust rial aut om ation t echnol gy has gr adualy m atur ed, as mat ure a t echnology line has been r apid developm ent in indust r ial aut om ation as a separ ate subject. M anipulat or applicat ion began t o f ilt er int o welding, logist ics, m echanical pr ocessing, and ot her indust r ies. Especialy at high or ver y low t em per atur es, ful of poisonous gases, high r adiat ion case, r obot in sim ilar cir cum st ances showed great use also br ings gr eat convenience t o t he staf f. Precisely because of t his r obot t o get people39。s at t ent ion began t o be a high degr ee of developm ent . Labor r at es, wor king condit ions, labor int ensive aspects of pr om oting developm ent . Bot h at home and abr oad t o develop t he PLC ( pr ogramm able logic cont r oler ) is in var ious special cir cum st ances and under special condit ions set f or m echanical devices. Now t ur ned on t he development of t he micr oelectr onics aut omat ic contr ol t echnology and t he r apid developm ent of t he t rains, t he success of PLC har dware soft war e and sim ulat ion cont r ol win big and successf ul developm ent , now cont inues t o develop as a f actor y aut omat ion st andar ds. Because r obot s are good development of t he t echnology m akes a good opt imizat ion of pr oduct ive capit al, and r obot shows t his unique advantages, such as: has good pat ibilt y, wide availabilt y, har dwar e is plet e, and pr ogramm ing t hat can be m ast ered in a shor t t im e, so in t he context of indust rial PLC applicat ions becam e ubiquit ous. Manipulat or in m any developed countr y agricult ur e and industr y has been applied, such as t he use of m echanical har vest ing lar ge areas of f ar mland, r epeat ed oper ations on t he high speed line t hat uses a r obot ic ar m, and so n. Today, t he high level of aut omat ion bined wit h r estr ict ions on t he m anipulat or development level is slight ly lower t han t he int er nat ional. The design is m ainly ar m welding m achine by PLC Aut omation cont r ol. This of design let designers on in school by lear n of has a m ust of consolidat ion, under st and has some usualy didn39。t oppor t unit ies awar eness in wor ld r ange wit hin som e leading level of knowledge has has m ust awar eness, hope designers can in yihou of design in t he can success of using in t his design in t he pr oceeds of exper ience 1. 2 m anipulat or in bot h at home and abr oad of r esearch pr of ile aut om at ion m echanical ar m research began Yu 20t h centur y medium t erm, af ter year s wit h wit h puter and autom at ion t echnology of develo