Professional Communication
Software Development Tools

OPC Foundation member and certified logos

Online Forums

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 or issues. You do not have to own a commercial license in order to use the OPC Labs supportOur team is actively monitoring the forums, and provides replies as soon as possible.

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.

QuickOPC in .NET 1559 topics

Provides support for QuickOPC in .NET-based tools.
Subject Replies / Views Last Post
OPC DA ReadMultipleItemValues remote support?
Category: QuickOPC in .NET
Topic started 11 Nov 2021 08:05, by yong
Last Post 11 Nov 2021 08:43
by support
Replies:1
Views:1247
Last Post by support
11 Nov 2021 08:43
EasyUAClient write UARange and UAEUInformation
Category: QuickOPC in .NET
Topic started 21 Jul 2021 07:40, by Nick
Last Post 28 Oct 2021 12:21
by support
Replies:9
Views:1897
Last Post by support
28 Oct 2021 12:21
ReadMultipleValues returning incorrectly typed value for a UInt16/ushort
Category: QuickOPC in .NET
Topic started 28 Oct 2021 11:17, by sboptimal
Last Post 28 Oct 2021 12:05
by sboptimal
Replies:2
Views:1445
Last Post by sboptimal
28 Oct 2021 12:05
Alarm notifications for Siemens PLCs
Category: QuickOPC in .NET
Topic started 30 Sep 2021 11:06, by emitter
Last Post 27 Oct 2021 16:16
by support
Replies:9
Views:3224
Last Post by support
27 Oct 2021 16:16
Reg OPC UA client connection to Anaymous OPC UA server
Category: QuickOPC in .NET
Topic started 20 Oct 2021 17:37, by aksenthil
Last Post 21 Oct 2021 05:34
by support
Replies:1
Views:1582
Last Post by support
21 Oct 2021 05:34
what is the default value of the sampling interval of OPC UA client?
Category: QuickOPC in .NET
Topic started 20 Oct 2021 12:42, by Jennee
Last Post 20 Oct 2021 16:24
by support
Replies:1
Views:1781
Last Post by support
20 Oct 2021 16:24
OPC UA Certificate trust - Status Code: {BadCertificateUntrusted} = 0x801A0000
Category: QuickOPC in .NET
Topic started 06 Oct 2021 12:48, by Restrepo
Last Post 09 Oct 2021 15:14
by support
Replies:3
Views:5592
Last Post by support
09 Oct 2021 15:14
Subscription problems
Category: QuickOPC in .NET
Topic started 04 Oct 2021 06:41, by RoadRunner2021
Last Post 05 Oct 2021 13:00
by admin
Replies:3
Views:2105
Last Post by admin
05 Oct 2021 13:00
OPCLabs version 5.35: BrowseServers() does not throw exception
Category: QuickOPC in .NET
Topic started 21 May 2021 11:43, by sachin.s.mehta@gmail.com
Last Post 29 Sep 2021 17:02
by support
Replies:3
Views:1479
Last Post by support
29 Sep 2021 17:02
QuickOPC Standard
Category: QuickOPC in .NET
Topic started 09 Sep 2021 16:49, by lesliemcg
Last Post 15 Sep 2021 07:09
by support
Replies:14
Views:3992
Last Post by support
15 Sep 2021 07:09
Questions Regarding EventNotification
Category: QuickOPC in .NET
Topic started 08 Sep 2021 17:18, by ZParham
Last Post 10 Sep 2021 13:54
by ZParham
Replies:3
Views:1542
Last Post by ZParham
10 Sep 2021 13:54
Crash with memory corruption
Category: QuickOPC in .NET
Topic started 08 Sep 2021 13:24, by Gulyk
Last Post 09 Sep 2021 09:28
by Gulyk
Replies:3
Views:1572
Last Post by Gulyk
09 Sep 2021 09:28
How To Handle Subscribing To An Inactive OPC Item
Category: QuickOPC in .NET
Topic started 06 Sep 2021 09:58, by Bishop
Last Post 06 Sep 2021 12:07
by support
Replies:3
Views:2335
Last Post by support
06 Sep 2021 12:07
Dynamically Creating Client Objects
Category: QuickOPC in .NET
Topic started 02 Sep 2021 14:25, by ZParham
Last Post 03 Sep 2021 13:37
by support
Replies:5
Views:1491
Last Post by support
03 Sep 2021 13:37
How to configure a request timeout in EasyUAClient?
Category: QuickOPC in .NET
Topic started 28 Jul 2021 14:16, by servusintra
Last Post 01 Sep 2021 07:55
by support
Replies:19
Views:4184
Last Post by support
01 Sep 2021 07:55
Subscription Error
Category: QuickOPC in .NET
Topic started 29 Aug 2021 21:31, by Delt42
Last Post 30 Aug 2021 05:42
by support
Replies:1
Views:1258
Last Post by support
30 Aug 2021 05:42
How to use handles when using SubscribeMultipleMonitoredItems()
Category: QuickOPC in .NET
Topic started 27 Aug 2021 13:01, by Restrepo
Last Post 27 Aug 2021 14:04
by Restrepo
Replies:2
Views:1340
Last Post by Restrepo
27 Aug 2021 14:04
How to write to a struct array
Category: QuickOPC in .NET
Topic started 30 Jul 2021 00:56, by goosvanbeek
Last Post 25 Aug 2021 14:36
by goosvanbeek
Replies:15
Views:4148
Last Post by goosvanbeek
25 Aug 2021 14:36
Crash on easyUAClient.ReadValue()
Category: QuickOPC in .NET
Topic started 25 Aug 2021 08:42, by micham
Last Post 25 Aug 2021 09:07
by support
Replies:1
Views:1813
Last Post by support
25 Aug 2021 09:07
EasyOpcNetDemo ERROR : " The Items AccessRights do not allow the operation."
Category: QuickOPC in .NET
Topic started 23 Aug 2021 10:21, by Nemcek
Last Post 23 Aug 2021 15:16
by Nemcek
Replies:2
Views:1795
Last Post by Nemcek
23 Aug 2021 15:16
Time to create page: 0.075 seconds