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: 3 Views: 51 Last Post Randy Armstrong - 6 days ago Server Index in NodeIdStarted By CHIRANTAN JOSHI - 03/20/2024 - 00:15Replies: 1 Views: 657 Last Post Sebastian Allmendinger - 2 months ago Change of Namespaces after the server has startedStarted By Siyuan Xu - 03/02/2026 - 03:36Replies: 2 Views: 119 Last Post Siyuan Xu - 2 months ago Namespace of BrowseNames of standard FileType methods Open/Close,...Started By Nico Buhl - 03/02/2026 - 00:05Replies: 1 Views: 172 Last Post Randy Armstrong - 2 months ago Structure with subtyping and Optional fieldsStarted By Rahul Rahul_1 - 02/23/2024 - 04:57Replies: 9 Views: 915 Last Post Randy Armstrong - 2 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: 184 Last Post Randy Armstrong - 3 months ago Confusion about error codesStarted By Patrick Berger - 12/12/2025 - 02:09Replies: 3 Views: 261 Last Post Randy Armstrong - 3 months ago Best practice to avoid inconsistent machine parametersStarted By Jakob Hennings - 02/10/2026 - 04:56Replies: 2 Views: 161 Last Post Jakob Hennings - 3 months ago Subscription limits for an OPC UA clientStarted By Yuri Bairros - 11/03/2025 - 06:12Replies: 3 Views: 756 Last Post Randy Armstrong - 6 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: 409 Last Post Randy Armstrong - 6 months ago Query on Events from Non-Server NodeStarted By Mohit Agarwal - 10/09/2025 - 12:53Replies: 6 Views: 334 Last Post Mohit Agarwal - 7 months ago Why reverse connect needs 2 socket?Started By Alexander Sobetskiy - 10/09/2025 - 19:04Replies: 1 Views: 266 Last Post Randy Armstrong - 7 months agoPage: 12345…58 Forum Timezone: America/PhoenixMost Users Ever Online: 975Currently Online: Guest(s) 34Currently Browsing this Page: 16 Guest(s)Top Posters: Forum Stats: Groups: 2Forums: 10Topics: 1517Posts: 5134 Usage Policy © Simple:Press — Privacy Policy New / Updated TopicsExchange values between different OPC UA…Missing Product in Marketplace SearchQuantitiesFolderType and UserCredentialC…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…Confusion about error codesBest practice to avoid inconsistent mach…Error in Robotics NodeSetHow to deal with LocaleIDs for state-mac…OPC UA Client Application Certificate Se…PHP or Javascript implementationCompatibility and Versions checking: wha…Is 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.OPC Foundation .net DLLs vulnerability u…