I-PLC, DCS, FCS: An in - ukujula bheka ezinhlelweni zokulawula izimboni

I-PLC, DCS, FCS: An in - ukujula bheka ezinhlelweni zokulawula izimboni

Endaweni yokugcina izimboni, ukuqonda umehluko nobudlelwano phakathi kwama-PLCs, i-DCSS, kanye ne-FCSS kubalulekile. Nakhu ukuqhekeka okuningiliziwe:

Ukubuka konke kwe-PLC, DCS, nama-FCS

• I-PLC (Isilawuli Esihlekisayo Sokulungiselela):Ukusuka ezinhlelweni zokulawula ukudlulisa, ama-PLC amadivaysi kagesi aklanyelwe ama-automation wezimboni aguqukayo futhi avumelanayo. Basebenzisa imemori ehlelekile ukugcina imiyalo yokusebenzisa imisebenzi enengqondo, okwenza ukulawulwa kwezinqubo ezahlukahlukene zemishini nezokukhiqiza.

• I-DCS (uhlelo lokulawula olusatshalaliswa):Ukuvela ngawo-1970s njengoba izikejana zokukhiqiza zinwebeka futhi izidingo zokulawula zikhuphukile, i-DCSS Ikheli Lokulinganiselwa Kwezinhlelo Zokulawula Okumaphakathi. Bafaka isakhiwo se-hierarchical esinokulawulwa okuhlukaniswe ngobuqili kanye nokuphathwa okumaphakathi, okuhlanganisa ubuchwepheshe obuhlukahlukene njenge-elekthronikhi, amakhompyutha kanye nokuxhumana.

• I-FCS (Uhlelo lokulawula lwe-Fieldbus):Uhlelo olusha - Uhlelo lokulawula izimboni oluthuthukisiwe ngonyaka we-1990s, ama-FCs lusebenzisa ubuchwepheshe be-FieldBus ukuxhuma amathuluzi wensimu kanye nabalawuli, bakha okugcwele kwedijithali, uhlelo lokuxhumana oluphelele olufezekisa ukusebenza okuphelele kwemisebenzi yokulawula.

I-FCS nokuqhathanisa kwe-DCS

Ukuthuthukiswa kanye nokuhlanganiswa: I-FCS yavela kwa-DCS kanye ne-PLC Technologies, ifaka izici zayo ngenkathi yenza intuthumo. I-DCS yamanje yama-DCS nama-PLCs aguqulwa ekusebenzeni, ngama-DCS athola amandla aqinile wokulawula okuqhubekayo nama-PLCs athuthukisa ngokuvalekile - Ukulawulwa kweLoop. Kokubili kungakha amanethiwekhi amakhulu - amanethiwekhi, okuholela ekunciphiseni okubalulekile kwizicelo zawo.

Izici ezibalulekile:

• Ukuxhumana:Ku-DCS, ibhasi ledatha lisebenza njengomgogodla, ngokuklanywa kwalo ukunquma ukuguquguquka kohlelo nokuphepha. Abathengisi abaningi be-DCS banikela ngamabhasi edatha angafuneki futhi basebenzise amaphrothokholi wokuxhumana okuyinkimbinkimbi kanye nephutha - amasu wokuhlola. Izindlela zokuxhumana zifaka izindlela ezivumelanayo nezi-asynchronous.

• Isakhiwo:I-DCS ngokuvamile isebenzisa eyodwa - ukuze - ukuxhumana okukodwa nge-single - ukuhanjiswa kwesiginali okuqondile, ngenkathi ama-FCs esebenzisa eyodwa - ukuze - ukuxhumana okuningi nge-bi - ukuhambisa okuqondayo okuningi - ukuhanjiswa kwesiginali okuningi.

• Ukwethembeka:Ama-FCs anokwethenjwa okungcono ngenxa yokudluliselwa kwesiginali yedijithali nge-anti eqinile - amakhono okuphazamisana nokunemba okuphezulu. Ngokuphambene nalokho, i-DCS isebenzisa amasiginali we-analog athambekele ekuphazanyisweni futhi anembe okuphansi.

• Lawula ukuhlukaniswa okuhle:I-FCS ifinyelela ukuhlukaniswa okuphelele kwemisebenzi yokulawula kumadivayisi wensimu, kuyilapho i-DCS ihlukaniswe ngokwengxenye.

• Ithuluzi:Ama-FCs asebenzisa izinsimbi ezihlakaniphile ngokuxhumana kwedijithali kanye namakhono okulawula, ngenkathi ama-DCS ancike kumathuluzi we-analog anemisebenzi ekhawulelwe.

• Izindlela Zokuxhumana:Ama-FCs amukela imali yedijithali ephelele, i-BI - indlela yokuxhumana eqondile kuwo wonke amazinga, ngenkathi i-DCS inezakhiwo ze-hybrid ngokuxhumana kwedijithali ezingxenyeni ezingenhla kanye nezimpawu ze-analog ezisezingeni lesembumbulu.

• Ukusebenzisana:Ama-FC avumela ukuxhumana okulula nokuxhumana kwamadivayisi avela kubathengisi abahlukahlukene abasebenzisa i-FieldBus Standard, kanti ama-DCS ahlushwa ukusebenzisana kabi ngenxa yezivumelwano zokuxhumana zokuxhumana.

Ukuqhathaniswa kwe-PLC kanye ne-DCS

PLC:

• Ukuziphendukela kwemvelo okusebenzayo:Ama-PLC aqhamuke ekuvumeni kokulawulwa kokulawulwa okulandelanayo kanye nokucutshungulwa kwedatha, futhi manje ukufaka ukulawulwa okuqhubekayo kwe-PID, ngemisebenzi ye-PID etholakala eziteshini eziphazamisayo. Bangakwazi ukwakha amanethiwekhi we-PLC nge-PC eyodwa njengesiteshi esikhulu kanye nama-PLC amaningi njengeziteshi zezigqila, noma nge-Plc eyodwa njenge-master nabanye njengezigqila.

• Izimo Zokusebenza:Ama-PLC asetshenziselwa ukulawula okulandelanayo kwezinqubo zezimboni, futhi ama-PLC wesimanje nawo aphatha ukuvalwa - Ukulawulwa kweLoop.

DCS:

• Ukuhlanganiswa Kwezobuchwepheshe:I-DCS ihlanganisa i-4C (ukuxhumana, ikhompyutha, i-control, Crt) Technologies yokuqapha nokulawula. Ifaka isihlahla - njenge-topology ngezokuxhumana njengento esemqoka.

• Isakhiwo sesistimu:I-DCS inesakhiwo esinezinga ezintathu - Isikhungo Sokulawula (Isiteshi sonjiniyela), ukusebenza (isiteshi sokusebenza), kanye namathuluzi wensimu (Isiteshi Sokulawula Insimu). Isebenzisa amasiginali we-analog nge / d - d / ukuguqulwa kanye nokuhlanganiswa kwe-microprocessor. Ithuluzi ngalinye lixhumeke ngomugqa onikezelwe ku-I / O, oxhumene ne-LAN ngesiteshi sokulawula.

• Izinkambu zohlelo lokusebenza:I-DCS ilungele inkulu kakhulu - isilinganiso sokulawulwa kwenqubo eqhubekayo, njengasezimbonini zasePetrochemical.

Ukuqonda lezi zinhlelo kusiza ekukhetheni ubuchwepheshe obufanele kumaphrojekthi wezezimboni ezenzakalelayo.