{"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":"felsokning-av-hmi-plc-vad-ar-det-hur-fungerar-det","status":"publish","type":"post","link":"https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/2023\/04\/06\/felsokning-av-hmi-plc-vad-ar-det-hur-fungerar-det\/","title":{"rendered":"Fels\u00f6kning av HMI och PLC: Vad \u00e4r det och hur fungerar det?"},"content":{"rendered":"<p>Med hj\u00e4lp av gr\u00e4nssnitt f\u00f6r m\u00e4nniska-maskin (HMI) kan personalen styra maskinerna exakt och effektivt. N\u00e4r HMI fungerar som det ska och kommunicerar med systemets programmerbara logiska styrenheter (PLC) blir helhetsupplevelsen effektiv och anv\u00e4ndarv\u00e4nlig.<\/p>\n<p>Men vad kan du g\u00f6ra n\u00e4r din HMI och PLC slutar kommunicera med varandra? Dreiym Engineerings guide till fels\u00f6kning av HMI och PLC syftar till att ge information om vad detta <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/2022\/12\/15\/sakerhetstips-for-arbete-med-elektriska-hogspanningssystem\/'>systemet \u00e4r och hur det fungerar<\/a>.<\/p>\n<h2>Underl\u00e5tenhet att kommunicera<\/h2>\n<p>N\u00e4r din HMI inte l\u00e4ngre \u00e4r ansluten till systemets olika PLC:er kan den inte ge kommandon till dessa. <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/2020\/10\/07\/framsta-orsakerna-till-fel-i-plcs-styrsystem\/'>styrenheter som h\u00e5ller ditt automatiserade system<\/a> ig\u00e5ng. F\u00f6r medarbetarna inneb\u00e4r det att det \u00e4r sv\u00e5rare att veta maskinens status och sv\u00e5rt att f\u00f6rutse fel utan att maskinens kommunikation finns p\u00e5 plats.<\/p>\n<h2>Fels\u00f6kning av intermittenta fel<\/h2>\n<p>Om din HMI och PLC \u00e4r anslutna via Ethernet kan en elingenj\u00f6r kanske utf\u00f6ra f\u00f6ljande\u00a0<a href=\"https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/services\/elektrisk-kraft\/belastningsanalys\/\">Fels\u00f6kning av PLC<\/a>\u00a0genom att k\u00f6ra enkla ping-kommandon fr\u00e5n b\u00e5da \u00e4ndarna av kretsen. Vanliga orsaker till intermittenta fel \u00e4r bland annat <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/2024\/02\/28\/sa-undviker-du-losa-elanslutningar-och-forebygger-brandrisker\/'>l\u00f6sa anslutningar<\/a> vid terminalerna och data\u00f6verf\u00f6ringsproblem med din programvara.<\/p>\n<p>Om det \u00e4r ett programvaruproblem kan du ha dubbla IP-adresser i ditt subn\u00e4tverk som st\u00f6r kommunikationen. M\u00e5nga ingenj\u00f6rer anv\u00e4nder datapaketssniffare f\u00f6r att leta efter s\u00e5dana h\u00e4r problem i programvaran.<\/p>\n<h2>Fels\u00f6kning av system som inte svarar<\/h2>\n<p>Om din <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/2020\/06\/22\/hur-man-valjer-en-teknisk-konsult\/'>konsulterande ingenj\u00f6r<\/a> har utf\u00f6rt ping-f\u00f6rfr\u00e5gningar som inte ger n\u00e5got svar, kan du ha djupare problem med din kabeldragning. Ingenj\u00f6ren kommer att utf\u00f6ra en visuell inspektion av de relevanta kablarna och rekommendera byte av eventuella fransiga eller p\u00e5 annat s\u00e4tt skadade ledningskomponenter. Ett snabbt s\u00e4tt att kontrollera om det finns osynliga skador \u00e4r att byta ut kabeln mellan HMI och PLC mot en kabel som de vet fungerar bra.<\/p>\n<p>Total avsaknad av svar i ditt system kan ocks\u00e5 kr\u00e4va en andra titt p\u00e5 din brandv\u00e4gg. Om du nyligen har uppdaterat ditt system kan programvaran ha \u00e4ndrat vissa brandv\u00e4ggsregler automatiskt. Om du g\u00e5r tillbaka till brandv\u00e4ggen och uppdaterar beh\u00f6righeterna f\u00f6r HMI:s TCP\/IP-port b\u00f6r kommunikationen kunna \u00e5terst\u00e4llas.<\/p>\n<p>Automatiserad <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/2022\/12\/15\/sakerhetstips-for-arbete-med-elektriska-hogspanningssystem\/'>elektriska system<\/a> kr\u00e4ver att alla komponenter \u00e4r i st\u00e4ndig kommunikation med varandra. Om den kommunikationen av n\u00e5gon anledning bryts, anlita en <a href='https:\/\/vm6fr4whzn6.c.updraftclone.com\/sv\/2020\/06\/22\/hur-man-valjer-en-teknisk-konsult\/'>konsulterande ingenj\u00f6r<\/a> f\u00f6r att utf\u00f6ra fels\u00f6kning av HMI och PLC. Den h\u00e4r guiden fr\u00e5n Dreiym Engineering ger grundl\u00e4ggande kunskaper om vad det \u00e4r och hur det fungerar s\u00e5 att du vet vad du kan f\u00f6rv\u00e4nta dig n\u00e4r ingenj\u00f6ren anl\u00e4nder.<\/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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