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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.

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Subject Replies / Views Last Post
Freeze the whole application
Category: Reading, Writing, Subscriptions
Topic started 09 Aug 2023 08:47, by mozesa
Last Post 09 Aug 2023 14:30
by support
Replies:2
Views:636
Last Post by support
09 Aug 2023 14:30
Multi instance of Client (UA) causing hangs state
Category: Reading, Writing, Subscriptions
Topic started 18 Jul 2023 21:01, by chandresekaran
Last Post 20 Jul 2023 15:28
by support
Replies:5
Views:611
Last Post by support
20 Jul 2023 15:28
Error on write
Category: Reading, Writing, Subscriptions
Topic started 24 May 2023 13:32, by Scattolaro
Last Post 14 Jul 2023 09:39
by Scattolaro
Replies:12
Views:1634
Last Post by Scattolaro
14 Jul 2023 09:39
Unable to write data into S7-1500 PLC using DASSIDirect.
Category: Reading, Writing, Subscriptions
Topic started 03 Jul 2023 06:40, by arunmanuel
Last Post 12 Jul 2023 15:51
by support
Replies:15
Views:1993
Last Post by support
12 Jul 2023 15:51
Subscribing to All UA Nodes in a UA Server
Category: Reading, Writing, Subscriptions
Topic started 02 Mar 2023 17:29, by gkalipershad
Last Post 03 Mar 2023 14:03
by gkalipershad
Replies:2
Views:888
Last Post by gkalipershad
03 Mar 2023 14:03
Async Read in OPC UA
Category: Reading, Writing, Subscriptions
Topic started 28 Feb 2023 13:44, by denning_s
Last Post 02 Mar 2023 08:49
by support
Replies:3
Views:910
Last Post by support
02 Mar 2023 08:49
Subscription/Unsubscription/Dispose with multiple clients
Category: Reading, Writing, Subscriptions
Topic started 29 Dec 2022 16:50, by mpp
Last Post 30 Dec 2022 15:08
by mpp
Replies:2
Views:879
Last Post by mpp
30 Dec 2022 15:08
Dynamic addressing of array position in a PLC using EasyUAClient
Category: Reading, Writing, Subscriptions
Topic started 18 Nov 2022 23:19, by lafondrobert
Last Post 19 Nov 2022 16:51
by support
Replies:3
Views:1355
Last Post by support
19 Nov 2022 16:51
OPC UA subscription - No notifications for some nodes on MOPS server
Category: Reading, Writing, Subscriptions
Topic started 14 Nov 2022 16:24, by radek.huber
Last Post 14 Nov 2022 17:06
by support
Replies:1
Views:759
Last Post by support
14 Nov 2022 17:06
When EasyDAItemChangedEventArgs.Succeeded can be false?
Category: Reading, Writing, Subscriptions
Topic started 29 Oct 2022 20:06, by aris
Last Post 31 Oct 2022 06:08
by support
Replies:3
Views:691
Last Post by support
31 Oct 2022 06:08
OPC UA .NET C# Subscribing to Complex Data Casting Error
Category: Reading, Writing, Subscriptions
Topic started 04 Oct 2022 14:51, by amlynar
Last Post 06 Oct 2022 11:14
by support
Replies:8
Views:1154
Last Post by support
06 Oct 2022 11:14
OPC UA .NET C# Reading to Array, License Problem
Category: Reading, Writing, Subscriptions
Topic started 20 Sep 2022 13:25, by amlynar
Last Post 21 Sep 2022 18:24
by support
Replies:14
Views:2633
Last Post by support
21 Sep 2022 18:24
.NET Core Web API Application - The CertificateValidator must not be specified
Category: Reading, Writing, Subscriptions
Topic started 11 Jul 2022 13:11, by ZParham
Last Post 21 Jul 2022 16:50
by support
Replies:3
Views:954
Last Post by support
21 Jul 2022 16:50
Authentication error when writing
Category: Reading, Writing, Subscriptions
Topic started 23 Jun 2022 10:10, by SolutionNow
Last Post 24 Jun 2022 16:19
by SolutionNow
Replies:9
Views:1358
Last Post by SolutionNow
24 Jun 2022 16:19
Subscriptions to more than 100 servers ,some servers do not respond .
Category: Reading, Writing, Subscriptions
Topic started 02 Mar 2022 09:23, by Sleepless
Last Post 03 Mar 2022 15:41
by support
Replies:1
Views:1247
Last Post by support
03 Mar 2022 15:41
Console Application - Subscribing To Large Number of Tags and Storing of Values
Category: Reading, Writing, Subscriptions
Topic started 19 Feb 2022 20:50, by neilcooley
Last Post 21 Feb 2022 09:49
by neilcooley
Replies:4
Views:946
Last Post by neilcooley
21 Feb 2022 09:49
KEPServer reading namespace problem
Category: Reading, Writing, Subscriptions
Topic started 31 Jan 2022 10:51, by radek.huber
Last Post 17 Feb 2022 09:33
by support
Replies:7
Views:1043
Last Post by support
17 Feb 2022 09:33
ReadMultipleItems returns stale data only without Connectivity Explorer running
Category: Reading, Writing, Subscriptions
Topic started 04 Feb 2022 02:26, by Dolinar
Last Post 04 Feb 2022 07:59
by support
Replies:1
Views:740
Last Post by support
04 Feb 2022 07:59
Registered Read/Write
Category: Reading, Writing, Subscriptions
Topic started 29 Oct 2021 09:10, by henning_wo
Last Post 26 Nov 2021 10:41
by support
Replies:6
Views:1326
Last Post by support
26 Nov 2021 10:41
ReadMultipleValues returning incorrectly typed value for a UInt16/ushort
Category: Reading, Writing, Subscriptions
Topic started 28 Oct 2021 11:17, by sboptimal
Last Post 28 Oct 2021 12:05
by sboptimal
Replies:2
Views:1003
Last Post by sboptimal
28 Oct 2021 12:05
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