OPC UA Standard|Forum|OPC Foundation Log InSelect ForumAnnouncementsProduct and Service RequestsSuggestionsOPC MarketplaceOPC UA StandardOPC UA Companion StandardsOPC UA Implementation: Stacks, Tools, an…OPC Certification and Interoperability T…Classic OPC: DA, A&E, HDA, XML-DA, e…Miscellaneous SearchAdvanced SearchSearchForum ScopeCurrent forumAll forumsMatchMatch any wordMatch all wordsMatch phraseForum OptionsPosts onlyTopic titles onlyPosts and topic titlesMinimum search word length is 3 characters - maximum search word length is 84 characters Search Login name Password Remember me Lost password? HomeForumOPC UA Standard OPC UA StandardQuestions about OPC UA technology and specifications etc.Page: 12345 58 QuantitiesFolderType and UserCredentialCertificateType removed from standardStarted By Mattias Häggkvist - 05/04/2026 - 08:17Replies: 5 Views: 92 Last Post Randy Armstrong - 2 days ago Confusion about error codesStarted By Patrick Berger - 12/12/2025 - 02:09Replies: 5 Views: 329 Last Post Randy Armstrong - 1 week ago Facing issue of disconnect after 57 minutes in OPCUA server built on Dot net , using OPCUACore.dll version 1.5.374.158Started By Vinay Salian - 05/20/2026 - 20:50Replies: 1 Views: 40 Last Post Randy Armstrong - 2 weeks ago Server Index in NodeIdStarted By CHIRANTAN JOSHI - 03/20/2024 - 00:15Replies: 1 Views: 700 Last Post Sebastian Allmendinger - 3 months ago Change of Namespaces after the server has startedStarted By Siyuan Xu - 03/02/2026 - 03:36Replies: 2 Views: 151 Last Post Siyuan Xu - 3 months ago Namespace of BrowseNames of standard FileType methods Open/Close,...Started By Nico Buhl - 03/02/2026 - 00:05Replies: 1 Views: 206 Last Post Randy Armstrong - 3 months ago Structure with subtyping and Optional fieldsStarted By Rahul Rahul_1 - 02/23/2024 - 04:57Replies: 9 Views: 969 Last Post Randy Armstrong - 3 months ago Status code BadNodeIdUnknown when reading attributes from a variable in namespaceindex 0 Started By Mikael Eklund - 02/23/2026 - 07:12Replies: 1 Views: 221 Last Post Randy Armstrong - 3 months ago Best practice to avoid inconsistent machine parametersStarted By Jakob Hennings - 02/10/2026 - 04:56Replies: 2 Views: 197 Last Post Jakob Hennings - 4 months ago Subscription limits for an OPC UA clientStarted By Yuri Bairros - 11/03/2025 - 06:12Replies: 3 Views: 883 Last Post Randy Armstrong - 7 months ago Non-transparent redundancy - differences between OPC UA Specification v1.04 and v1.05 Started By Mikael Eklund - 10/28/2025 - 05:53Replies: 3 Views: 440 Last Post Randy Armstrong - 7 months ago Query on Events from Non-Server NodeStarted By Mohit Agarwal - 10/09/2025 - 12:53Replies: 6 Views: 344 Last Post Mohit Agarwal - 7 months ago Page: 12345…58 Forum Timezone: America/PhoenixMost Users Ever Online: 1361Currently Online: Guest(s) 1247Currently Browsing this Page: 21 Guest(s)Top Posters: Forum Stats: Groups: 2Forums: 10Topics: 1519Posts: 5142 Usage Policy © Simple:Press — Privacy Policy New / Updated TopicsExchange values between different OPC UA…Missing Product in Marketplace SearchQuantitiesFolderType and UserCredentialC…Confusion about error codesFacing issue of disconnect after 57 min…Server Index in NodeIdChange of Namespaces after the server ha…Namespace of BrowseNames of standard Fil…Structure with subtyping and Optional fi…Status code BadNodeIdUnknown when readin…Best practice to avoid inconsistent mach…Error in Robotics NodeSetHow to deal with LocaleIDs for state-mac…RAM memory concernsOPC UA Client Application Certificate Se…PHP or Javascript implementationIs upgrading to OPC Core Components v3.1…OpenSSL 1.1.x phase out need to replace …New version of OPC Core Components Redis…OPC DA to OPC server communication.