{"id":2431,"date":"2019-03-25T17:39:32","date_gmt":"2019-03-25T20:39:32","guid":{"rendered":"http:\/\/xexeu.elipse.com.br\/pt\/kb30877-opc-communication-only-works-via-studio\/"},"modified":"2019-05-27T14:52:02","modified_gmt":"2019-05-27T17:52:02","slug":"kb30877-opc-communication-only-works-via-studio","status":"publish","type":"post","link":"https:\/\/kb.elipse.com.br\/en\/kb30877-opc-communication-only-works-via-studio\/","title":{"rendered":"KB-30877: OPC communication only works via Studio."},"content":{"rendered":"<div style=\"text-align: justify;\" align=\"justify\">\n<p><span style=\"font-weight: bold;\">Question:<\/span><\/p>\n<p>When E3 is an OPC Client and communication happens via E3 Studio, it works properly. However, when executing the Domain, it does not work. Why does this occur?<\/p>\n<p><span style=\"font-weight: bold;\">Solution:<\/span><\/p>\n<p>This happens because <span style=\"font-weight: bold;\">Studio<\/span> and <b>E3Run <\/b>(the process responsible for executing the domain) run in different user accounts.<\/p>\n<p>The <b>Studio <\/b>runs in the account of the user logged into Windows, while <b>E3Run <\/b>(and E3Server) runs in the <span style=\"font-family: Courier New;\">SYSTEM <\/span>account, and the OPC Server may not be prepared to work in this account.<\/p>\n<p>To fix this problem, we recommend reading he related articles below.<\/p>\n<p><span style=\"font-weight: bold;\">NOTA<\/span>: If OPCDriver&#8217;s <strong style=\"font-style: italic; font-weight: normal;\">ServerMachine<\/strong> property is currently displaying the IP number, you must replace it with the following structure:<span style=\"font-family: Courier New;\"> \\\\<\/span><strong style=\"font-family: Courier New; font-weight: normal;\">MachineName<\/strong><strong>.<\/strong><\/p>\n<\/div>\n<div align=\"justify\"><\/div>\n<div align=\"justify\">\n<h3>Related Articles<\/h3>\n<hr \/>\n<ul>\n<li><a href=\"https:\/\/kb.elipse.com.br\/en-us\/questions\/79\/DCOM+and+Firewall+Settings+in+Windows+XP%7B47%7D2003%7B47%7DVista%7B47%7D2008+for+Elipse+applications.\">DCOM and Firewall Settings in Windows XP\/2003\/Vista\/2008 for Elipse applications.<\/a><\/li>\n<li><a href=\"https:\/\/kb.elipse.com.br\/en-us\/questions\/4162\/DCOM+and+Firewall+Settings+in+Windows+7+for+Elipse+applications.\">DCOM and Firewall Settings in Windows 7 for Elipse applications.<\/a><\/li>\n<li><a href=\"https:\/\/kb.elipse.com.br\/en-us\/questions\/4466\/KB-39425%3A+OPC+communication+not+working%2C+even+after+DCOM+has+been+set+up.\">KB-39425: OPC communication not working, even after DCOM has been set up.<\/a><\/li>\n<\/ul>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Question: When E3 is an OPC Client and communication happens via E3 Studio, it works properly. However, when executing the Domain, it does not work. Why does this occur? Solution:&hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0},"categories":[755],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>KB-30877: OPC communication only works via Studio. - Elipse Knowledgebase<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/kb.elipse.com.br\/en\/kb30877-opc-communication-only-works-via-studio\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"KB-30877: OPC communication only works via Studio.\" \/>\n<meta property=\"og:description\" content=\"Question: When E3 is an OPC Client and communication happens via E3 Studio, it works properly. 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