{"id":3238,"date":"2023-04-06T07:26:26","date_gmt":"2023-04-06T07:26:26","guid":{"rendered":"https:\/\/3.212.105.250\/?p=3238"},"modified":"2025-01-18T08:53:50","modified_gmt":"2025-01-18T14:53:50","slug":"hmi-plc-vianmaaritys-mika-se-on-miten-se-toimii","status":"publish","type":"post","link":"https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2023\/04\/06\/hmi-plc-vianmaaritys-mika-se-on-miten-se-toimii\/","title":{"rendered":"HMI- ja PLC-vianm\u00e4\u00e4ritys: Mit\u00e4 se on ja miten se toimii?"},"content":{"rendered":"<p>Ihmisen ja koneen v\u00e4listen k\u00e4ytt\u00f6liittymien (HMI) avulla ty\u00f6ntekij\u00e4t voivat k\u00e4ytt\u00e4\u00e4 koneita tarkasti ja tehokkaasti. Kun k\u00e4ytt\u00f6liittym\u00e4 toimii oikein ja kommunikoi j\u00e4rjestelm\u00e4n ohjelmoitavien logiikkaohjainten (PLC) kanssa, kokonaiskokemus on tehokas ja k\u00e4ytt\u00e4j\u00e4yst\u00e4v\u00e4llinen.<\/p>\n<p>Mutta mit\u00e4 voit tehd\u00e4, kun HMI ja PLC eiv\u00e4t en\u00e4\u00e4 kommunikoi kesken\u00e4\u00e4n? Dreiym Engineeringin opas HMI- ja PLC-vianetsint\u00e4\u00e4n pyrkii antamaan tietoa siit\u00e4, mit\u00e4 t\u00e4m\u00e4 on. <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2022\/12\/15\/turvallisuusvihjeita-suurjannitesahkojarjestelmien-kanssa-tyoskentelyyn\/'>j\u00e4rjestelm\u00e4 on ja miten se toimii<\/a>.<\/p>\n<h2>Viestinn\u00e4n laiminly\u00f6nti<\/h2>\n<p>Kun HMI ei ole en\u00e4\u00e4 yhteydess\u00e4 j\u00e4rjestelm\u00e4n eri PLC-j\u00e4rjestelmiin, se ei voi antaa komentoja n\u00e4ille PLC-j\u00e4rjestelmille. <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2020\/10\/07\/plc-ohjausjarjestelman-vikaantumisen-tarkeimmat-syyt\/'>ohjaimet, jotka pit\u00e4v\u00e4t automatisoidun j\u00e4rjestelm\u00e4n<\/a> k\u00e4ynniss\u00e4. Ty\u00f6ntekij\u00f6iden kannalta t\u00e4m\u00e4 tarkoittaa, ett\u00e4 koneen tilaa on vaikeampi tiet\u00e4\u00e4 ja vikoja on vaikea ennustaa ilman, ett\u00e4 koneen viestint\u00e4 on k\u00e4yt\u00f6ss\u00e4.<\/p>\n<h2>Vianm\u00e4\u00e4ritys ajoittaisissa vioissa<\/h2>\n<p>Jos HMI- ja PLC-laitteesi on kytketty Ethernetin kautta, s\u00e4hk\u00f6insin\u00f6\u00f6ri voi ehk\u00e4 suorittaa seuraavat toimenpiteet\u00a0<a href=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/services\/sahkoteho\/kuormitusanalyysi\/\">PLC-vianm\u00e4\u00e4ritys<\/a>\u00a0suorittamalla yksinkertaisia ping-komentoja piirin molemmista p\u00e4ist\u00e4. Yleisi\u00e4 syyllisi\u00e4 ajoittaisiin vikoihin ovat seuraavat tekij\u00e4t <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2024\/02\/28\/miten-valtetaan-loysat-sahkoliitannat-ja-ehkaistaan-tulipalovaara\/'>l\u00f6ys\u00e4t liit\u00e4nn\u00e4t<\/a> p\u00e4\u00e4telaitteissa ja tiedonsiirtoon liittyvist\u00e4 ongelmista ohjelmiston kanssa.<\/p>\n<p>Jos kyseess\u00e4 on ohjelmisto-ongelma, aliverkossasi voi olla p\u00e4\u00e4llekk\u00e4isi\u00e4 IP-osoitteita, jotka h\u00e4iritsev\u00e4t viestint\u00e4\u00e4. Monet insin\u00f6\u00f6rit k\u00e4ytt\u00e4v\u00e4t datapakettien nuuskimisohjelmia etsi\u00e4kseen t\u00e4llaisia ongelmia ohjelmistosta.<\/p>\n<h2>Vianm\u00e4\u00e4ritys reagoimattomissa j\u00e4rjestelmiss\u00e4<\/h2>\n<p>Jos <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2020\/06\/22\/insinoorikonsultin-valinta\/'>konsultoiva insin\u00f6\u00f6ri<\/a> on tehnyt ping-pyynt\u00f6j\u00e4, jotka eiv\u00e4t vastaa lainkaan, johdotuksessasi voi olla syvempi\u00e4 ongelmia. Insin\u00f6\u00f6ri tarkastaa kaapelit silm\u00e4m\u00e4\u00e4r\u00e4isesti ja suosittelee, ett\u00e4 kaikki haalistuneet tai muuten vaurioituneet johdotuskomponentit vaihdetaan. Nopea tapa tarkistaa n\u00e4kym\u00e4tt\u00f6m\u00e4t vauriot on vaihtaa HMI:n ja PLC:n yhdist\u00e4v\u00e4 kaapeli sellaiseen, jonka he tiet\u00e4v\u00e4t toimivan hyvin.<\/p>\n<p>J\u00e4rjestelm\u00e4n t\u00e4ydellinen reagoimattomuus voi my\u00f6s vaatia palomuurin tarkistamista. Jos olet hiljattain p\u00e4ivitt\u00e4nyt j\u00e4rjestelm\u00e4si, ohjelmistosi on saattanut muuttaa joitakin palomuuris\u00e4\u00e4nt\u00f6j\u00e4 automaattisesti. Palomuuriin palaaminen ja HMI:n TCP\/IP-portin k\u00e4ytt\u00f6oikeuksien p\u00e4ivitt\u00e4minen pit\u00e4isi palauttaa tiedonsiirto.<\/p>\n<p>Automaattinen <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2022\/12\/15\/turvallisuusvihjeita-suurjannitesahkojarjestelmien-kanssa-tyoskentelyyn\/'>s\u00e4hk\u00f6j\u00e4rjestelm\u00e4t<\/a> edellytt\u00e4v\u00e4t, ett\u00e4 kaikki osat ovat jatkuvasti yhteydess\u00e4 toisiinsa. Jos viestint\u00e4yhteys katkeaa jostain syyst\u00e4, pyyd\u00e4 mukaan <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/fi\/2020\/06\/22\/insinoorikonsultin-valinta\/'>konsultoiva insin\u00f6\u00f6ri<\/a> HMI- ja PLC-vianm\u00e4\u00e4ritys. T\u00e4m\u00e4 Dreiym Engineeringin opas tarjoaa perustiedot siit\u00e4, mit\u00e4 se on ja miten se toimii, jotta tied\u00e4t, mit\u00e4 odottaa, kun insin\u00f6\u00f6ri saapuu paikalle.<\/p>","protected":false},"excerpt":{"rendered":"<p>Human-machine interfaces (HMIs) allow workers to operate machinery precisely and effectively. When the HMI works properly and communicates with the system\u2019s programmable logic controllers (PLCs), the overall experience is efficient and user-friendly. But what can you do when your HMI and PLCs stop communicating with one another? Dreiym Engineering\u2019s guide to HMI and PLC troubleshooting [&hellip;]<\/p>\n","protected":false},"author":8,"featured_media":3253,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_mbp_gutenberg_autopost":false,"_pgmb_is_evergreen":true,"_pgmb_ap_template_id":0,"iawp_total_views":103,"footnotes":""},"categories":[7],"tags":[],"class_list":["post-3238","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-engineering"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO Pro 4.9.6.2 - aioseo.com -->\n\t<meta name=\"description\" content=\"Human-machine interfaces (HMIs) allow workers to operate machinery precisely and effectively. 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