Marangrang a puisano a indasteri ke motheo oa lifeme tsa sejoale-joale le liindasteri tsa ts'ebetso, a bapala karolo ea bohlokoa ts'ebetsong le ts'ebetsong ea tsona. Ho tloha lifemeng tsa tlhahiso ea likoloi ho ea litsing tse rarahaneng tsa lik'hemik'hale le lilaboratori tse tsoetseng pele tsa liroboto, khetho ea likhoele tsa marang-rang e ka ama haholo katleho le katleho ea puisano ea mochini. Marang-rang a entsoeng hantle a netefatsa hore data e fetisoa ka mokhoa o tšepahalang le ka potlako, e leng ntho ea bohlokoa libakeng tse hlokang tlhokomelo le taolo ea nako ea sebele. Sengoloa sena se tla shebana le mokhoa oa ho khetha pakeng tsa PROFIBUS le PROFINETlikhoele.
1. PROFIBUS ke eng?
PROFIBUS ke tekanyetso e butsoitseng ea fieldbus e hlahisitsoeng bofelong ba lilemo tsa bo-1980. Haholo-holo e nolofalletsa puisano lipakeng tsa balaoli ba othomathike le lisebelisoa tsa masimo tse kang li-sensor, li-valve le li-drive. E tsebahala ka ho tiea le ho tšepahala ha eona, e sebelisoang haholo tlhahisong le ts'ebetsong ea othomathike.
PROFIBUS e sebelisa puisano ea serial e thehiloeng holim'a lera la 'mele la RS-485. E tšehetsa sekhahla sa data ho fihlela ho 12 Mbps 'me e loketse li-topology tsa line kapa bese. E loketse haholo libaka tse hlokang puisano e ikhethileng.
2. PROFINET ke eng?
PROFINET ke protocol ea puisano e thehiloeng ho Ethernet e ntlafalitsoeng ke PROFIBUS le PROFINET International (PI). E etselitsoe ka ho khetheha phapanyetsano ea data ea lebelo le phahameng, ea nako ea sebele marangrang a indasteri ea sejoale-joale, e tšehetsang mesebetsi e rarahaneng ea othomathike.
PROFINET e ipapisitse le theknoloji e tloaelehileng ea Ethernet 'me e tšehetsa sekhahla sa data ho tloha ho 100 Mbps ho fihlela lebelo la Gigabit. Mefuta ea eona ea marang-rang e tenyetsehang e kenyelletsa naleli, mola, selikalikoe, kapa meaho ea sefate. E loketse boiketsetso bo phahameng, liroboto le taolo ea motsamao.
3. Likhoele tsa PROFIBUS
Kaha PROFIBUS e itšetlehile ka ho sebelisa lets'oao la serial le fapaneng, ho kenngoa ha thapo ho tlameha ho fokotsa tšitiso ea motlakase (EMI) le ho boloka botšepehi ba lets'oao. Litlhaloso tse tloaelehileng tsa thapo ea PROFIBUS li kenyelletsapara e sothehileng e sirelelitsoeng (STP) or para e sothehileng e sa sirelelitsoeng (UTP)ka impedance ea 100–120 ohms. Likhoele tse sirelelitsoeng li khothaletsoa libakeng tsa indasteri tse nang le EMI e phahameng. Ka sekhahla se tlase sa baud, bolelele ba likhoele bo ka fihla ho limithara tse 1200. Lihokelo e lokela ho ba mefuta ea M12, M8, kapa screw-terminal.
Sebelisa likhoele tse netefalitsoeng ke PROFIBUS ho netefatsa hore lia lumellana, li sireletsa fatše hantle ho fokotsa lerata, le ho boloka tsela e nepahetseng ea likhoele ho qoba tšitiso.
4. Likhoele tsa PROFINET
PROFINET e sebelisa likhoele tse tloaelehileng tsa Ethernet, e sebelisa likhoele tsa marang-rang a khoebo. Khetho e nepahetseng ea likhoele e netefatsa puisano e potlakileng le e tšepahalang, haholo-holo libakeng tse thata tsa indasteri.
Litlhaloso tse tloaelehileng tsa thapo ea PROFINET ke Cat5e, Cat6, kapa ho feta (haholo-holo e sirelelitsoeng ke indasteri). Bakeng sa tšireletso, sebelisa para e sothehileng e sirelelitsoeng (STP kapa S/FTP) libakeng tse lerata. Lihokelo tse khothaletsoang ke RJ45 Ethernet ea indasteri. Karolo ka 'ngoe ea thapo ha ea lokela ho feta limithara tse 100; libaka tse telele li hloka li-switch kapa li-repeater.
Mekhoa e Metle ea PROFINET:Sebelisa likhoele tsa Ethernet tsa maemo a indasteri tse etselitsoeng libaka tse thata; etsa bonnete ba hore mobu o tsitsitse hantle le hore o sirelelitsoe; sebelisa li-switch tsa marang-rang a indasteri ho atolosa kapa ho arola marang-rang.
5. Ke Cable efe eo U Lokelang ho e Khetha?
Sebelisa likhoele tsa PROFIBUS:
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Bakeng sa litsamaiso tsa setso kapa lits'ebetso tsa puisano tse latellanang
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Libakeng tse nang le tšitiso e fokolang ea motlakase
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Ha puisano e theko e tlase le e tšepahalang ea serial e lekane
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Bakeng sa ho sebetsa ha cable ka nako e khuts'oane ka har'a mechini kapa likhabote tsa taolo
Sebelisa likhoele tsa PROFINET:
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Bakeng sa lits'ebetso tsa lebelo le phahameng, tsa bandwidth e phahameng
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Libakeng tse nang le maemo a phahameng a leholimo a sa fetoheng a hlokang likhoele tsa Ethernet tse sirelelitsoeng
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Bakeng sa topology ea marang-rang a tenyetsehang le a ka atolosoang
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Ha ho kopanngoa le lisebelisoa tsa sejoale-joale tse thehiloeng ho Ethernet le ho haha litsamaiso tse sireletsang bokamoso
6. Malebela a ho Kenya bakeng sa Puisano e Tšepahalang
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Tšireletso e Nepahetseng:Sebelisa e sirelelitsoenglikhoelele ho netefatsa hore lithebe li thehiloe hantle.
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Tsela ea Cable:Boloka likhoele tsa puisano hole le lithapo tsa motlakase le mehloli ea tšitiso.
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Lihokelo le Li-terminal:Sebelisa lihokelo tsa maemo a indasteri 'me u netefatse hore li-terminal li sireletsehile.
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Karohano:Rala marangrang ho fokotsa bolelele ba likarolo le ho qoba li-loops tse sa hlokahaleng.
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Lintho Tse ka Amehang ka Tikoloho:Khetha likhoele tse lekantsoeng mocheso, ho pepesehela lik'hemik'hale, le khatello ea mechine tikolohong.
Likhoele tsa PROFIBUS le PROFINET ka bobeli li bapala karolo ea bohlokoa empa li etselitsoe lits'ebetso tse itseng. PROFIBUS e emela fieldbus ea ts'ebetso 'me e se e le khetho e tšepahalang, haholo-holo indastering ea ts'ebetso ea setso e itšetlehileng ka meralo ea eona e tiileng. Litikoloho tsena hangata li hloka botsitso le botsitso 'me li rua molemo bokhoning ba PROFIBUS ba ho boloka puisano e tšepahalang libakeng tse telele le litlhophiso tse rarahaneng tsa marang-rang.
Ha o kgetha, nahana ka meralo ya motheo ya hao, tikoloho le dipakane tsa hao tsa nakong e tlang. Kgetha ditharollo tse tshwarellang, tse sebetsang hantle, le tse tshepahalang esita le maemong a boima ka ho fetisisa.
Nako ea poso: Pulungoana-24-2025