IsishwankatheloIsetyenziselwa ukudibanisa ii-nodes ze-PROFIBUS kwintambo yebhasi ye-PROFIBUS Ukufakelwa okulula
Iiplagi zeFastConnect ziqinisekisa amaxesha okuhlanganisa amafutshane kakhulu ngenxa yetekhnoloji yazo yokususa ubushushu
Ii-resistors eziphelisayo ezidityanisiweyo (ezingekho kwimeko ye-6ES7972-0BA30-0XA0)
Izihlanganisi ezineesokhethi ze-D-sub zivumela uqhagamshelo lwe-PG ngaphandle kofakelo olongezelelweyo lwee-nodes zenethiwekhi
Isicelo
Izihlanganisi zebhasi ze-RS485 ze-PROFIBUS zisetyenziselwa ukudibanisa ii-nodes ze-PROFIBUS okanye izixhobo zenethiwekhi ye-PROFIBUS kwintambo yebhasi ye-PROFIBUS.
Uyilo
Kukho iinguqulelo ezahlukeneyo zesixhumi sebhasi, nganye ilungiselelwe izixhobo eziza kuqhagamshelwa:
Isixhumi sebhasi esine-axial cable outlet (180°), umz. kwiiPC kunye nee-SIMATIC HMI OPs, ukuze kufikelele kumazinga okudlulisela ukuya kuthi ga kwi-12 Mbps kunye ne-integrated bus terminating resistor.
Isixhumi sebhasi esine-outlet yentambo ethe nkqo (90°);
Esi sixhumi sivumela i-outlet yentambo ethe nkqo (enojongano lwe-PG okanye engenalo) ukuze kufikelele kumazinga okudlulisela ukuya kuthi ga kwi-12 Mbps ene-integral bus terminating resistor. Kwizinga lokudlulisela le-3, 6 okanye 12 Mbps, intambo ye-plug-in ye-SIMATIC S5/S7 iyafuneka ukuze kuqhagamshelwe phakathi kwesixhumi sebhasi esine-PG-interface kunye nesixhobo sokucwangcisa.
Isixhumi sebhasi esine-outlet yekhebula engama-30° (inguqulelo engabizi kakhulu) ngaphandle kwe-interface ye-PG yamanqanaba okudlulisela ukuya kuthi ga kwi-1.5 Mbps kwaye ngaphandle kwe-resistor yokuphelisa ibhasi edibeneyo.
Isixhumi sebhasi sePROFIBUS FastConnect i-RS 485 (i-90° okanye i-180° cable outlet) esinamazinga okudlulisela afikelela kwi-12 Mbps ukuze kube lula kwaye kube lula ukuhlanganisa kusetyenziswa ubuchwepheshe bokufudumeza ubushushu (kwiintambo eziqinileyo neziguquguqukayo).
Umsebenzi
Isixhumi sebhasi sixhunywe ngqo kwi-interface ye-PROFIBUS (i-9-pin Sub-D socket) yesitishi se-PROFIBUS okanye icandelo lenethiwekhi ye-PROFIBUS.
Intambo yePROFIBUS engenayo nephumayo iqhagamshelwe kwiplagi kusetyenziswa iiterminals ezi-4.
Ngokusebenzisa iswitshi efikelelekayo ebonakala ngokucacileyo ngaphandle, i-line terminator edityaniswe kwi-bus connector inokuqhagamshelwa (hayi kwimeko ye-6ES7 972-0BA30-0XA0). Kule nkqubo, iintambo zebhasi ezingenayo neziphumayo kwi-connector ziyahlulwa (umsebenzi wokwahlula).
Oku kufuneka kwenziwe kuzo zombini iziphelo zecandelo le-PROFIBUS.