Marang-rang a likhokahano tsa indasteri ke mokokotlo oa lifeme le liindasteri tsa sejoale-joale, a bapala karolo ea bohlokoa tšebetsong le tšebetsong ea tsona. Ho tloha ho limela tsa tlhahiso ea likoloi ho ea ho lisebelisoa tsa lik'hemik'hale tse rarahaneng le li-lab tsa liroboto tse tsoetseng pele, khetho ea likhoele tsa marang-rang e ka ama haholo katleho le katleho ea puisano ea mochini. Marang-rang a hlophisitsoeng hantle a tiisa hore data e fetisoa ka botšepehi le ka potlako, e leng ntho ea bohlokoa libakeng tse hlokang ho hlahlojoa le ho laola nako ea sebele. Sengoliloeng sena se tla shebana le mokhoa oa ho khetha lipakeng tsa PROFIBUS le PROFINETlikhoele.
1. PROFIBUS ke eng?
PROFIBUS ke maemo a holileng a masimong a hlahisitsoeng ho elella bofelong ba lilemo tsa bo-1980. E thusa haholo-holo puisano lipakeng tsa li-automation controller le lisebelisoa tsa masimong joalo ka li-sensor, li-valve le li-drive. E tsebahala ka ho tiea ha eona le ho ts'epahala, e sebelisoang hangata ho etsa le ho etsa li-automation.
PROFIBUS e sebelisa puisano ea serial e thehiloeng holim'a RS-485 ea 'mele. E ts'ehetsa litefiso tsa data ho fihla ho 12 Mbps mme e loketse mela kapa li-topology tsa libese. Haholo-holo e loketse hantle bakeng sa libaka tse hlokang puisano e tiileng.
2. PROFINET ke eng?
PROFINET ke protocol ea puisano e thehiloeng ho Ethernet e entsoeng ke PROFIBUS le PROFINET International (PI). E etselitsoe ka ho khetheha bakeng sa phapanyetsano ea data e potlakileng, ea nako ea sebele ho marang-rang a morao-rao a indasteri, e tšehetsang mesebetsi e rarahaneng ea automation.
PROFINET e ipapisitse le theknoloji e tloaelehileng ea Ethernet mme e ts'ehetsa litefiso tsa data ho tloha ho 100 Mbps ho ea ho lebelo la Gigabit. Li-topology tsa eona tsa marang-rang tse feto-fetohang li kenyelletsa naleli, mohala, selikalikoe kapa meaho ea lifate. E loketse li-automation tse sebetsang hantle haholo, liroboto, le taolo ea motsamao.
3. Lithapo tsa PROFIBUS
Kaha PROFIBUS e itšetlehile ka pontšo e fapaneng ea serial, ho kenya cable ho tlameha ho fokotsa tšitiso ea motlakase (EMI) le ho boloka botšepehi ba matšoao. Litlhaloso tse tloaelehileng tsa cable tsa PROFIBUS li kenyelletsashielded twisted pair (STP) or UTP (UTP)e nang le impedance ea 100-120 ohms. Lithapo tse sirelelitsoeng li khothaletsoa libakeng tsa indasteri tse nang le EMI e phahameng. Ka litekanyetso tse tlase tsa baud, bolelele ba cable bo ka fihla ho limithara tse 1200. Lihokelo e lokela ho ba M12, M8, kapa mefuta ea screw-terminal.
Sebelisa lithapo tse tiisitsoeng ka PROFIBUS ho netefatsa hore lia lumellana, lithebe tse fatše hantle ho fokotsa lerata, le ho boloka tsela e nepahetseng ea lithapo ho qoba tšitiso.
4. Lithapo tsa PROFINET
PROFINET e sebelisa thapo e tloaelehileng ea Ethernet, ho sebelisa likhoele tsa marang-rang tsa khoebo. Khetho e nepahetseng ea cable e tiisa puisano e potlakileng, e ka tšeptjoang, haholo-holo libakeng tse thata tsa indasteri.
Litlhaloso tse tloaelehileng tsa lithapo tsa PROFINET ke Cat5e, Cat6, kapa e phahameng (haholo-holo e sirelelitsoe ke boemo ba indasteri). Bakeng sa ho sireletsa, sebelisa para e sothehileng e sirelelitsoeng (STP kapa S/FTP) libakeng tse lerata. Lihokelo tse khothalelitsoeng ke RJ45 Ethernet ea maemo a indasteri. Karolo e 'ngoe le e' ngoe ea cable ha ea lokela ho feta limithara tse 100; sebaka se selelele se hloka li-switches kapa li pheta-pheta.
PROFINET Mekhoa e Molemo ka ho Fetisisa:Sebelisa likhoele tsa Ethernet tsa boemo ba indasteri tse etselitsoeng maemo a thata; etsa bonnete ba hore ho na le motheo o nepahetseng le tšireletso; sebelisa li-switches tsa marang-rang tsa indasteri ho atolosa kapa ho arola marang-rang.
5. Ke Cable Efe eo U Lokelang ho e Khetha?
Sebelisa lithapo tsa PROFIBUS:
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Bakeng sa litsamaiso tsa setso kapa lits'ebetso tsa puisano tsa serial
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Libakeng tse nang le tšitiso e fokolang ea motlakase
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Ha ho na le litšenyehelo, puisano e ka tšeptjoang ea serial e lekane
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Bakeng sa lithapo tse khutšoane tsa thapo ka har'a mochini kapa likhabinete tsa taolo
Sebelisa lithapo tsa PROFINET:
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Bakeng sa lits'ebetso tsa lebelo le holimo, li-bandwidth tse phahameng
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Libakeng tse phahameng tsa EMI tse hlokang likhoele tsa Ethernet tse sirelelitsoeng
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Bakeng sa flexible, scalable network topology
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Ha o kopanya le lisebelisoa tsa morao-rao tse thehiloeng ho Ethernet le ho haha litsamaiso tsa bopaki ba nako e tlang
6. Malebela a Tlhophiso bakeng sa Puisano e Tšepahalang
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Tšireletso e nepahetseng:Sebelisa tšireletsolikhoelele ho netefatsa hore lithebe li theiloe hantle.
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Ho tsamaisa Cable:Boloka likhoele tsa puisano li le hole le lithapo tsa motlakase le mehloling ea tšitiso.
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Lihokelo le Litheminale:Sebelisa likhokahano tsa boemo ba indasteri 'me u netefatse hore li-terminals li bolokehile.
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Karohano:Etsa marang-rang ho fokotsa bolelele ba likarolo le ho qoba loops e sa hlokahaleng.
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Mehopolo ea Tikoloho:Khetha lithapo tse kentsoeng mocheso, boemo ba lik'hemik'hale, le khatello ea mochine tikolohong.
Lithapo ka bobeli tsa PROFIBUS le PROFINET li bapala karolo ea bohlokoa empa li etselitsoe lits'ebetso tse ikhethileng. PROFIBUS e emela ts'ebetso ea fieldbus mme e fetohile khetho e ka tšeptjoang, haholo-holo liindasteri tsa mekhoa ea setso tse itšetlehileng ka mohaho oa eona o matla. Hangata maemo ana a hloka botsitso le botsitso le ho rua molemo ho bokhoni ba PROFIBUS ba ho boloka puisano e tšepahalang libakeng tse telele le litlhophiso tse rarahaneng tsa marang-rang.
Ha u khetha, nahana ka mekhoa ea hau ea motheo, tikoloho le lipakane tsa nako e tlang. Khetha litharollo tse tšoarellang, tse sebetsang hantle, le tse tšepahalang le tlas'a maemo a thata ka ho fetesisa.
Nako ea poso: Nov-24-2025