{"id":8234618,"date":"2026-10-24T17:26:33","date_gmt":"2026-10-24T17:26:33","guid":{"rendered":"https:\/\/scn.eu\/?post_type=scn_guide&#038;p=8234618"},"modified":"2026-10-24T17:32:37","modified_gmt":"2026-10-24T17:32:37","slug":"toostusliku-etherneti-protokollid","status":"publish","type":"scn_guide","link":"https:\/\/scn.eu\/et\/juhendid\/toostusliku-etherneti-protokollid\/","title":{"rendered":"T\u00f6\u00f6stuslik Ethernet \u2013 PROFINET, EtherNet\/IP ja Modbus"},"content":{"rendered":"<div class=\"scn-guide\">\n<h1>T\u00f6\u00f6stuslik Ethernet \u2013 PROFINET, EtherNet\/IP ja Modbus<\/h1>\n<p class=\"g-lead\">PLC r\u00e4\u00e4gib PROFINET-i, energiaarvesti Modbusi ja servoajam EtherCAT-i. Selles juhendis selgitame, mis eristab levinumaid t\u00f6\u00f6stusprotokolle, kus neid kasutatakse ja millal on vaja l\u00fc\u00fcsi, et need omavahel suhelda saaksid.<\/p>\n<div class=\"g-short\"><b class=\"t\">L\u00fchike vastus<\/b><\/p>\n<ul>\n<li><b>PROFINET<\/b> \u2013 Siemensi maailm ja Euroopas k\u00f5ige levinum valik. Reaalajas Ethernet sisendite-v\u00e4ljundite ja ajamite jaoks.<\/li>\n<li><b>EtherNet\/IP<\/b> \u2013 Rockwell (Allen-Bradley) ja Omron. Domineerib P\u00f5hja-Ameerikas.<\/li>\n<li><b>Modbus TCP\/RTU<\/b> \u2013 lihtne ja avatud. Leidub peaaegu k\u00f5iges, alates energiaarvestitest kuni sagedusmuunduriteni.<\/li>\n<li><b>EtherCAT ja CAN<\/b> \u2013 EtherCAT kiireks liikumisjuhtimiseks, CANopen ja J1939 masinates ja s\u00f5idukites.<\/li>\n<li><b>OPC UA<\/b> \u2013 andmete edastamiseks \u00fcles SCADA-, MES-s\u00fcsteemidesse ja pilve, mitte kiireks I\/O-ks.<\/li>\n<li>Kui kaks seadet r\u00e4\u00e4givad eri protokolle, on vaja <b>l\u00fc\u00fcsi<\/b>. \u00dchisest kaablist ei piisa.<\/li>\n<\/ul>\n<\/div>\n<h2>Miks on protokolle nii palju?<\/h2>\n<p>Alates 1980. aastatest asendasid v\u00e4ljasiinid PLC-de ja andurite vahelised j\u00e4medad kaablikimbud. Iga suur tootja edendas oma standardit: Siemens toetas PROFIBUS-t, Allen-Bradley DeviceNet-i ja Bosch arendas autode jaoks v\u00e4lja CAN-i. Etherneti tulekuga tekkisid PROFINET, mis on sisuliselt PROFIBUS-e j\u00e4reltulija, ja EtherNet\/IP, mis kasutab sama rakenduskihti (CIP) nagu DeviceNet.<\/p>\n<p>Kaablid v\u00f5ivad v\u00e4lja n\u00e4ha \u00fchesugused, kuid seadmed r\u00e4\u00e4givad eri keeli. Tavaliselt otsustab PLC: kui klient valib Siemensi, tuleb PROFINET, kui ta valib Rockwelli, tuleb EtherNet\/IP. K\u00f5ik muu vajab t\u00f5lki.<\/p>\n<figure><img loading=\"lazy\" src=\"https:\/\/scn.eu\/wp-content\/uploads\/2026\/10\/scn-guide-protokoll-f1-et.webp\" alt=\"Automaatikap\u00fcramiid koos t\u00fc\u00fcpiliste protokollidega: OPC UA ja MQTT SCADA ja pilve suunal, PROFINET, EtherNet\/IP, EtherCAT ja Modbus TCP juhtimistasandil, IO-Link, Modbus RTU, CANopen ja PROFIBUS v\u00e4ljatasandil\" width=\"1520\" height=\"560\" loading=\"lazy\" decoding=\"async\"><figcaption>Eri tasanditel on eri protokollid: masina l\u00e4hedal reaalaeg, k\u00f5rgemal andmed ja anal\u00fc\u00fcs.<\/figcaption><\/figure>\n<h2>Levinumad protokollid \u00fche pilguga<\/h2>\n<div class=\"g-tbl\">\n<table>\n<thead>\n<tr>\n<th>Protokoll<\/th>\n<th>Meedium<\/th>\n<th>T\u00fc\u00fcpiline kasutus<\/th>\n<th>Levinud<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td class=\"n\">PROFINET<\/td>\n<td>Ethernet<\/td>\n<td>I\/O, ajamid ja robotirakud. IRT-variant tuleb toime s\u00fcnkroniseeritud liikumisjuhtimisega.<\/td>\n<td>Siemens ja paljud teised. Euroopas k\u00f5ige suurem.<\/td>\n<\/tr>\n<tr>\n<td class=\"n\">EtherNet\/IP<\/td>\n<td>Ethernet<\/td>\n<td>I\/O ja ajamid. P\u00f5hineb CIP-il.<\/td>\n<td>Rockwell (Allen-Bradley) ja Omron. P\u00f5hja-Ameerikas k\u00f5ige suurem.<\/td>\n<\/tr>\n<tr>\n<td class=\"n\">Modbus TCP<\/td>\n<td>Ethernet<\/td>\n<td>Lihtne seire ja juhtimine: arvestid, ajamid, HMI-d ja SCADA.<\/td>\n<td>Peaaegu k\u00f5ik tootjad. Avatud alates 1979. aastast.<\/td>\n<\/tr>\n<tr>\n<td class=\"n\">Modbus RTU<\/td>\n<td>RS-485<\/td>\n<td>Nagu Modbus TCP, kuid jada\u00fchendusega, kuni 247 alamseadet \u00fchel siinil.<\/td>\n<td>Vanemad ja lihtsamad seadmed, energia m\u00f5\u00f5tmine.<\/td>\n<\/tr>\n<tr>\n<td class=\"n\">EtherCAT<\/td>\n<td>Ethernet<\/td>\n<td>Kiire liikumisjuhtimine l\u00fchikeste ts\u00fckliaegadega.<\/td>\n<td>Beckhoff ning paljud servo- ja I\/O-tootjad.<\/td>\n<\/tr>\n<tr>\n<td class=\"n\">CANopen, J1939<\/td>\n<td>CAN<\/td>\n<td>Sards\u00fcsteemid, liikurmasinad ja s\u00f5idukid.<\/td>\n<td>CANopen masinates, J1939 veokites ja maastikumasinates.<\/td>\n<\/tr>\n<tr>\n<td class=\"n\">PROFIBUS<\/td>\n<td>RS-485, MBP<\/td>\n<td>Olemasolevad seadmed (DP) ja protsessit\u00f6\u00f6stus (PA).<\/td>\n<td>Siemens. Asendub j\u00e4rk-j\u00e4rgult PROFINET-iga.<\/td>\n<\/tr>\n<tr>\n<td class=\"n\">OPC UA<\/td>\n<td>Ethernet<\/td>\n<td>Andmed SCADA-, MES-s\u00fcsteemidesse ja pilve, sisseehitatud turvalisusega.<\/td>\n<td>Tootjast s\u00f5ltumatu, IEC 62541.<\/td>\n<\/tr>\n<tr>\n<td class=\"n\">IO-Link<\/td>\n<td>Kolmesooneline kaabel<\/td>\n<td>Andurid ja t\u00e4iturid parameetrite seadistamise ja diagnostikaga.<\/td>\n<td>K\u00f5ik suuremad andurite tootjad, IEC 61131-9.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p>PROFINET-seadmed tuvastatakse seadmenime j\u00e4rgi ja neid kirjeldab GSDML-fail, EtherNet\/IP-seadmeid EDS-fail. Modbusil sellist kirjeldust ei ole, mist\u00f5ttu on vaja tootja registrikaarti. EtherCAT t\u00f6\u00f6tleb kaadreid igas alamseadmes jooksvalt, l\u00e4bimise ajal, ja vajab seet\u00f5ttu seadmetes spetsiaalset riistvara. IO-Link ei ole v\u00f5rk, vaid kuni 20-meetrine punkt-punkt-\u00fchendus anduri ja IO-Link-\u00fclemseadme vahel, mis omakorda asub v\u00e4ljasiinil.<\/p>\n<h2>Millist protokolli kus kasutatakse?<\/h2>\n<p>Valik s\u00f5ltub t\u00f6\u00f6stusharust, piirkonnast ja juba paigaldatud seadmetest.<\/p>\n<ul>\n<li><b>Tehased ja masinaehitajad<\/b> \u2013 PROFINET v\u00f5i EtherNet\/IP s\u00f5ltuvalt kliendi PLC-st. Nii Euroopas kui ka USA-s m\u00fc\u00fcdav masin vajab sageli m\u00f5lemat. Andurite puhul kasutatakse \u00fcha enam IO-Linki.<\/li>\n<li><b>S\u00f5idukid ja liikurmasinad<\/b> \u2013 domineerib CAN. J1939 veokites, traktorites ja ehitusmasinates, CANopen t\u00f5stukites, kahvelt\u00f5stukites ja automaatjuhitavates s\u00f5idukites (AGV).<\/li>\n<li><b>Energeetika ja elektriv\u00f5rgud<\/b> \u2013 Modbus energiaarvestites, inverterites ja akusalvestites. Alajaamades kasutatakse protokolle IEC 61850 ja IEC 60870-5-104, mida tuleb sageli t\u00f5lkida Modbusiks v\u00f5i DNP3-ks.<\/li>\n<li><b>Vesi, reovesi ja hooned<\/b> \u2013 Modbus RTU ja TCP SCADA suunal. OPC UA ja MQTT, kui andmed peavad liikuma edasi k\u00f5rgema taseme s\u00fcsteemidesse.<\/li>\n<li><b>Raudtee<\/b> \u2013 spetsiaalsed rongiprotokollid, nagu MVB, WTB ja TRDP sarjast IEC 61375, koos l\u00fc\u00fcsidega Etherneti, jadaliideste ja CAN-i suunal.<\/li>\n<li><b>Meditsiinitehnika ja laborid<\/b> \u2013 CANopen ja jadaliidesed instrumentide ja seadmete sees.<\/li>\n<li><b>Pooljuhid ja elektroonika<\/b> \u2013 SECS\/GEM tootmisseadmete ja tehase hosts\u00fcsteemi vahel.<\/li>\n<\/ul>\n<h2>Millal on vaja protokollil\u00fc\u00fcsi?<\/h2>\n<p>Seda on vaja n\u00e4iteks siis, kui Modbusiga energiaarvestit peab lugema Siemensi PLC. L\u00fc\u00fcs on tavaliselt \u00fchel pool \u00fclem- v\u00f5i klientseade ja teisel pool alamseade v\u00f5i IO-seade. See kogub andmeid ts\u00fckliliselt ja kaardistab need PLC protsessikujutisse, nii et programm n\u00e4eb v\u00e4\u00e4rtusi tavaliste sisendite ja v\u00e4ljunditena.<\/p>\n<figure><img loading=\"lazy\" src=\"https:\/\/scn.eu\/wp-content\/uploads\/2026\/10\/scn-guide-protokoll-f2-et.webp\" alt=\"L\u00fc\u00fcs \u00fchendab PROFINET-PLC kolme Modbus RTU seadmega RS-485-siinil: energiaarvesti, sagedusmuundur ja temperatuuriregulaator\" width=\"1520\" height=\"480\" loading=\"lazy\" decoding=\"async\"><figcaption>PLC suunal on l\u00fc\u00fcs PROFINET-seade, RS-485-siinil olevate seadmete suunal Modbusi \u00fclemseade.<\/figcaption><\/figure>\n<div class=\"g-tbl\">\n<table>\n<thead>\n<tr>\n<th>Kui sul on vaja \u2026<\/th>\n<th>\u2026 vali<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Lugeda Modbusi seadmeid PROFINET-PLC-st<\/td>\n<td>Modbus\u2013PROFINET l\u00fc\u00fcs<\/td>\n<\/tr>\n<tr>\n<td>\u00dchendada CANopeni v\u00f5i J1939 masin Rockwelli PLC-ga<\/td>\n<td>CAN\u2013EtherNet\/IP l\u00fc\u00fcs<\/td>\n<\/tr>\n<tr>\n<td>\u00dchendada Modbusi v\u00f5i Etherneti seadmeid vanema PROFIBUS-PLC-ga<\/td>\n<td>PROFIBUS-alamseadmega l\u00fc\u00fcs<\/td>\n<\/tr>\n<tr>\n<td>Lugeda Modbus RTU andmeid SCADA-st \u00fcle v\u00f5rgu<\/td>\n<td>Modbus RTU\u2013TCP l\u00fc\u00fcs<\/td>\n<\/tr>\n<tr>\n<td>Saata masinaandmeid MES-i v\u00f5i pilve<\/td>\n<td>OPC UA v\u00f5i MQTT toega IIoT-l\u00fc\u00fcs<\/td>\n<\/tr>\n<tr>\n<td>\u00dchendada arvuti CAN-siiniga katsetamiseks ja hoolduseks<\/td>\n<td>USB v\u00f5i PCIe CAN-liides<\/td>\n<\/tr>\n<tr>\n<td>Viia RS-232 v\u00f5i RS-485 seadmed Etherneti v\u00f5rku protokolli muutmata<\/td>\n<td>Jadaseadmete server<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div class=\"g-short\">\n<p style=\"margin:0\">L\u00fc\u00fcs sobib I\/O-andmete ja m\u00f5\u00f5tev\u00e4\u00e4rtuste jaoks, kuid mitte s\u00fcnkroniseeritud liikumisjuhtimiseks. Seal peaksid ajamid ja PLC r\u00e4\u00e4kima sama protokolli.<\/p>\n<\/div>\n<h2>Levinud vead<\/h2>\n<ol class=\"g-pit\">\n<li><b>Sama pistik ei t\u00e4henda sama protokolli.<\/b> PROFINET- ja EtherNet\/IP-seadmed v\u00f5ivad jagada kaableid ja kommutaatoreid, kuid omavahel nad andmeid ei vaheta.<\/li>\n<li><b>Registrikaart puudub.<\/b> Modbus saadab ainult 16-bitiseid registreid. Ilma tootja registrikaardita ei saa aru, kumb on temperatuur ja kumb olek v\u00f5i milline 32-bitise v\u00e4\u00e4rtuse s\u00f5na on esimene.<\/li>\n<li><b>Multiedastus ujutab v\u00f5rgu \u00fcle.<\/b> EtherNet\/IP saadab I\/O-andmeid sageli multiedastusena (multicast). Kui kommutaatorites puudub IGMP snooping, l\u00e4heb liiklus v\u00e4lja k\u00f5igisse portidesse ja v\u00f5ib lihtsamaid seadmeid \u00fcle koormata.<\/li>\n<li><b>Andmeala on liiga v\u00e4ike.<\/b> See, mitu baiti l\u00fc\u00fcs kummaski suunas k\u00e4sitleb ja kui kiiresti ta andmeid v\u00e4rskendab, piirab \u00fchendatavate seadmete arvu.<\/li>\n<li><b>\u00dclesande jaoks vale protokoll.<\/b> OPC UA sobib suurep\u00e4raselt andmete saatmiseks \u00fclespoole, kuid ei asenda reaalajaprotokolli I\/O ja ajamite jaoks.<\/li>\n<\/ol>\n<h2>L\u00fc\u00fcsid ja liidesed SCN-ilt<\/h2>\n<p>Pakume protokollil\u00fc\u00fcse teiste hulgas tootjatelt Moxa, HMS Networks (Ixxat), Weintek ja Duagon. Need katavad protokollid Modbus, PROFINET, EtherNet\/IP, PROFIBUS, EtherCAT, CANopen, J1939 ja OPC UA ning rongiprotokollid, nagu TRDP ja MVB. Valikus on ka arvutite CAN-liidesed ja jadaliidese muundurid.<\/p>\n<h3>N\u00e4iteid meie valikust<\/h3>\n<div class=\"g-prod\"><a class=\"g-pc\" href=\"https:\/\/scn.eu\/et\/toode\/mgate-5103-et\/\"><img loading=\"lazy\" src=\"https:\/\/scn.eu\/wp-content\/uploads\/2026\/10\/moxa-mgate-5103-main.webp\" alt=\"Moxa MGate 5103 Modbus\u2013PROFINET l\u00fc\u00fcs\" width=\"800\" height=\"800\" loading=\"lazy\" decoding=\"async\"><span class=\"g-pb\">Moxa<\/span><span class=\"g-pn\">MGate 5103 Modbus\u2013PROFINET l\u00fc\u00fcs<\/span><span class=\"g-pw\">\u00dchendab Modbus RTU\/ASCII\/TCP ja EtherNet\/IP seadmed PROFINET-v\u00f5rku IO-seadmena, kuni 512 baiti sisend- ja v\u00e4ljundandmeid.<\/span><\/a><a class=\"g-pc\" href=\"https:\/\/scn.eu\/et\/toode\/cannet-nt-200-et\/\"><img loading=\"lazy\" src=\"https:\/\/scn.eu\/wp-content\/uploads\/2025\/01\/CANnet2520NT2520200.jpeg\" alt=\"HMS Networks Ixxat CAN@net NT 200\" width=\"800\" height=\"800\" loading=\"lazy\" decoding=\"async\"><span class=\"g-pb\">HMS Networks<\/span><span class=\"g-pn\">Ixxat CAN@net NT 200<\/span><span class=\"g-pw\">L\u00fc\u00fcs ja sild CAN-i ja Etherneti vahel, kahe CAN-kanali ning MQTT toega pilve\u00fchenduste jaoks.<\/span><\/a><a class=\"g-pc\" href=\"https:\/\/scn.eu\/et\/toode\/cmt-g01x-et\/\"><img loading=\"lazy\" src=\"https:\/\/scn.eu\/wp-content\/uploads\/2026\/10\/weintek-cmt-g01x-main.webp\" alt=\"Weintek cMT-G01X IIoT-l\u00fc\u00fcs OPC UA ja MQTT toega\" width=\"800\" height=\"800\" loading=\"lazy\" decoding=\"async\"><span class=\"g-pb\">Weintek<\/span><span class=\"g-pn\">cMT-G01X IIoT-l\u00fc\u00fcs OPC UA ja MQTT toega<\/span><span class=\"g-pw\">OPC UA serveri ja MQTT toega IIoT-l\u00fc\u00fcs, mis \u00fchendab PLC-d ja masinad k\u00f5rgema taseme s\u00fcsteemidega.<\/span><\/a><\/div>\n<div class=\"g-links\"><a href=\"https:\/\/scn.eu\/et\/tootekategooria\/tooteid\/network-products-et\/industrial-connectivity-et\/protocol-gateways-et\/\">Protokollil\u00fc\u00fcsid<\/a><a href=\"https:\/\/scn.eu\/et\/tootekategooria\/tooteid\/network-products-et\/bridges-gateways-et\/\">Sillad ja l\u00fc\u00fcsid<\/a><a href=\"https:\/\/scn.eu\/et\/tootekategooria\/tooteid\/control-systems-et\/gateways-et\/\">Juhtimiss\u00fcsteemide l\u00fc\u00fcsid<\/a><a href=\"https:\/\/scn.eu\/et\/tootekategooria\/tooteid\/network-products-et\/can-interfaces-et\/\">CAN-liidesed<\/a><a href=\"https:\/\/scn.eu\/et\/tootekategooria\/tooteid\/network-products-et\/industrial-connectivity-et\/serial-converters\/\">Jadaliidese muundurid<\/a><a href=\"https:\/\/scn.eu\/et\/tootekategooria\/tooteid\/network-products-et\/ethernet-et\/\">Etherneti kommutaatorid<\/a><\/div>\n<div class=\"g-cta\">\n<p>Kas kaks s\u00fcsteemi peavad omavahel suhtlema? Kirjelda seadmeid ja protokolle meie inseneridele \u2013 vastuse saad 24 tunni jooksul.<\/p>\n<p><a href=\"https:\/\/scn.eu\/et\/kontakt\/\">K\u00fcsi inseneri k\u00e4est<\/a><\/div>\n<h2>Korduma kippuvad k\u00fcsimused<\/h2>\n<details>\n<summary>Mis vahe on PROFIBUS-el ja PROFINET-il?<\/summary>\n<p>PROFIBUS on RS-485 p\u00f5hine jadav\u00e4ljasiin kiirusega kuni 12 Mbit\/s. PROFINET p\u00f5hineb Ethernetil, pakub suuremat ribalaiust ja paremat diagnostikat ning sellega ehitatakse t\u00e4nap\u00e4eval uusi seadmeid. M\u00f5lemat haldab sama t\u00f6\u00f6stusorganisatsioon PI.<\/p>\n<\/details>\n<details>\n<summary>Kas Modbus TCP ja Modbus RTU on sama asi?<\/summary>\n<p>Neil on sama andmemudel ja samad funktsioonikoodid, kuid erinev transport. RTU t\u00f6\u00f6tab jada\u00fchendusena \u00fcle RS-485 v\u00f5i RS-232, TCP \u00fcle Etherneti. Lihtne Modbusi l\u00fc\u00fcs t\u00f5lgib nende vahel.<\/p>\n<\/details>\n<details>\n<summary>Kas PROFINET ja EtherNet\/IP saavad jagada sama v\u00f5rku?<\/summary>\n<p>Jah, nad saavad jagada kaableid ja kommutaatoreid. Kuid seadmed ei vaheta omavahel otse andmeid. Selleks on vaja l\u00fc\u00fcsi v\u00f5i kontrollerit, mis r\u00e4\u00e4gib m\u00f5lemat protokolli.<\/p>\n<\/details>\n<details>\n<summary>Mille poolest erineb EtherCAT PROFINET-ist?<\/summary>\n<p>EtherCAT loeb ja kirjutab andmeid siis, kui kaader l\u00e4bib iga alamseadet, mis annab liikumisjuhtimiseks v\u00e4ga l\u00fchikesed ts\u00fckliajad. PROFINET-i kasutatakse laialdaselt I\/O ja ajamite jaoks ning n\u00f5udliku liikumisjuhtimise jaoks on IRT-variant.<\/p>\n<\/details>\n<details>\n<summary>Kas OPC UA on v\u00e4ljasiini protokoll?<\/summary>\n<p>Ei, OPC UA-d kasutatakse peamiselt andmevahetuseks masinate ja k\u00f5rgema taseme s\u00fcsteemide, n\u00e4iteks SCADA, MES-i ja pilve vahel. V\u00e4ljatasandi variant OPC UA FX on olemas, kuid seda ei kasutata veel laialdaselt.<\/p>\n<\/details>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>PLC r\u00e4\u00e4gib PROFINET-i, energiaarvesti Modbusi ja servoajam EtherCAT-i. Selles juhendis selgitame, mis eristab levinumaid t\u00f6\u00f6stusprotokolle, kus neid kasutatakse ja millal on vaja l\u00fc\u00fcsi, et need omavahel suhelda saaksid.<\/p>\n","protected":false},"author":11,"featured_media":8234380,"template":"","meta":{"_yoast_wpseo_focuskw":"t\u00f6\u00f6stuslik ethernet","_yoast_wpseo_metadesc":"T\u00f6\u00f6stusliku Etherneti protokollid selgeks: PROFINET, EtherNet\/IP, Modbus, EtherCAT, CANopen ja OPC UA \u2013 kus neid kasutatakse ja millal on vaja 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