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Technical support is provided through Support Forums below. Anybody can view them; you need to Register/Login to our site (see links in upper right corner) in order to Post questions. You do not have to be a licensed user of our product.

Please read Rules for forum posts before reporting your issue or asking a question. OPC Labs team is actively monitoring the forums, and replies as soon as possible. Various technical information can also be found in our Knowledge Base. For your convenience, we have also assembled a Frequently Asked Questions page.

Do not use the Contact page for technical issues.

Recent Topics (8 topics)

Subject Replies / Views Last Post
Occasionally Failure OpcLabs.UAEngine=4518 occurs
Category: Reading, Writing, Subscriptions
Topic started 28 Jul 2025 12:20, by Kärcher
Last Post 29 Jul 2025 07:02
by support
Replies:3
Views:25
Last Post by support
29 Jul 2025 07:02
JScript version of OPC-DA Write multiple values, specify requested data types
Category: QuickOPC-Classic in COM
Topic started 25 Jul 2025 22:15, by Kyle.Oshima@caltrol.com
Last Post 28 Jul 2025 10:07
by support
Replies:1
Views:39
Last Post by support
28 Jul 2025 10:07
JScript version of OPC-UA Write and specify data type example
Category: QuickOPC-UA in COM
Topic started 18 Jul 2025 02:00, by Kyle.Oshima@caltrol.com
Last Post 23 Jul 2025 19:15
by Kyle.Oshima@caltrol.com
Replies:5
Views:71
Last Post by Kyle.Oshima@caltrol.com
23 Jul 2025 19:15
Read current value on subscription and on reconnection
Category: Reading, Writing, Subscriptions
Topic started 22 Jul 2025 05:00, by clyeo
Last Post 22 Jul 2025 07:01
by support
Replies:3
Views:34
Last Post by support
22 Jul 2025 07:01
Browsing Cimplicity UA server - {{BadProtocoIVersionUnsupported}
Category: Discovery, Browsing, Browse Dialogs and Controls
Topic started 14 Jul 2025 16:04, by micham
Last Post 15 Jul 2025 07:04
by micham
Replies:2
Views:103
Last Post by micham
15 Jul 2025 07:04
Communication abnormality
Category: Connections, Reconnections, Certificates
Topic started 07 Jul 2025 08:00, by xpycy001
Last Post 14 Jul 2025 16:15
by support
Replies:3
Views:67
Last Post by support
14 Jul 2025 16:15
Certificate Errors with Error ID OpcLabs.{56E6B7CF}
Category: Connections, Reconnections, Certificates
Topic started 08 Jul 2025 19:19, by KPersyn33
Last Post 12 Jul 2025 15:29
by support
Replies:6
Views:64
Last Post by support
12 Jul 2025 15:29
License stopped working
Category: Product Lifecycle, Licensing
Topic started 30 Jun 2025 16:13, by janko.mihelic@adnet.hr
Last Post 30 Jun 2025 16:26
by support
Replies:1
Views:66
Last Post by support
30 Jun 2025 16:26

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