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QuickOPC-Classic in .NET 888 topics

Provides support for QuickOPC-Classic in .NET-based tools. This category is meant for OPC "Classic" (COM/DCOM based) specifications - currently, OPC-DA and OPC-A&E are supported.
Category
Last Post
Re: Nuget Package
by jkertis
19 Mar 2025 12:17
Re: Testing/License Issue?
by tlaford
24 Mar 2025 14:36
Re: live binding
by alu
25 Jun 2021 17:15

OPC Alarms&Events 38 topics


If you are developing in .NET, but are using the OPC-UA (OPC Unified Architecture), please post in the QuickOPC-UA category instead.

Subject Replies / Views Last Post
License issue
Category: QuickOPC-Classic in .NET
Topic started 18 Jun 2023 14:30, by eshaq.quadri
Last Post 20 Jun 2023 09:05
by eshaq.quadri
Replies:4
Views:653
Last Post by eshaq.quadri
20 Jun 2023 09:05
Unable to connect to ORB in .net windows service
Category: QuickOPC-Classic in .NET
Topic started 25 Apr 2023 09:01, by rabbi.mathake
Last Post 25 Apr 2023 09:22
by support
Replies:1
Views:506
Last Post by support
25 Apr 2023 09:22
EasyDAItemChangedEventHandlers
Category: QuickOPC-Classic in .NET
Topic started 24 Mar 2023 18:22, by hkadhim
Last Post 24 Mar 2023 18:34
by support
Replies:2
Views:621
Last Post by support
24 Mar 2023 18:34
URL : problem in run URL path after istancing
Category: QuickOPC-Classic in .NET
Topic started 24 Nov 2022 16:12, by CHRDEI
Last Post 25 Nov 2022 08:03
by support
Replies:3
Views:588
Last Post by support
25 Nov 2022 08:03
Accommodate IOPCSecurityPrivate Interface in OPC DA Server
Category: QuickOPC-Classic in .NET
Topic started 24 May 2022 19:49, by gkalipershad
Last Post 25 May 2022 13:51
by gkalipershad
Replies:2
Views:872
Last Post by gkalipershad
25 May 2022 13:51
ReadMultipleItems returns old values
Category: QuickOPC-Classic in .NET
Topic started 09 May 2022 14:41, by porporiniHSG
Last Post 10 May 2022 15:30
by support
Replies:5
Views:850
Last Post by support
10 May 2022 15:30
EasyOPCDA Client Freezes when placed in multithreaded application
Category: QuickOPC-Classic in .NET
Topic started 25 Apr 2022 13:28, by Restrepo
Last Post 29 Apr 2022 07:52
by support
Replies:10
Views:2215
Last Post by support
29 Apr 2022 07:52
Read Multiple OPC DA item
Category: QuickOPC-Classic in .NET
Topic started 14 Mar 2022 09:05, by mut9bu
Last Post 14 Mar 2022 12:51
by support
Replies:3
Views:1029
Last Post by support
14 Mar 2022 12:51
OPCLabs version 5.35: BrowseServers() does not throw exception
Category: QuickOPC-Classic 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:992
Last Post by support
29 Sep 2021 17:02
‘Access denied’ + The client method called was 'BrowseProperties'.
Category: QuickOPC-Classic in .NET
Topic started 21 Jul 2021 17:07, by Restrepo
Last Post 03 Aug 2021 04:44
by support
Replies:8
Views:1555
Last Post by support
03 Aug 2021 04:44
OpcDa items
Category: QuickOPC-Classic in .NET
Topic started 01 May 2021 21:05, by Sacha
Last Post 02 May 2021 14:22
by Sacha
Replies:4
Views:1010
Last Post by Sacha
02 May 2021 14:22
Upgrade from version 5.23 to 2020.3 - DCOM Issues
Category: QuickOPC-Classic in .NET
Topic started 10 Dec 2020 22:06, by PythonByte
Last Post 12 Dec 2020 10:31
by support
Replies:3
Views:2438
Last Post by support
12 Dec 2020 10:31
Service starting Error 1053
Category: QuickOPC-Classic in .NET
Topic started 11 Dec 2020 06:51, by Hicham21
Last Post 11 Dec 2020 17:18
by support
Replies:5
Views:2057
Last Post by support
11 Dec 2020 17:18
Validating Quick OPC application with BAD and UNCERTAIN data server
Category: QuickOPC-Classic in .NET
Topic started 04 Nov 2020 22:43, by janderscu
Last Post 05 Nov 2020 16:27
by support
Replies:3
Views:1089
Last Post by support
05 Nov 2020 16:27
EasyDaClient - ItemChanged - Object Reference not set to an instanc of an object
Category: QuickOPC-Classic in .NET
Topic started 22 May 2020 20:07, by Math
Last Post 23 May 2020 10:18
by support
Replies:1
Views:1447
Last Post by support
23 May 2020 10:18
Writing to tag failed with error code 0xC0048005
Category: QuickOPC-Classic in .NET
Topic started 17 Apr 2020 07:44, by nrsouman
Last Post 18 Apr 2020 08:05
by support
Replies:1
Views:1445
Last Post by support
18 Apr 2020 08:05
An OPC operation failure with error code 0x800401F3
Category: QuickOPC-Classic in .NET
Topic started 07 Jan 2020 16:43, by Ronald B. Livesay
Last Post 08 Jan 2020 07:32
by support
Replies:1
Views:3162
Last Post by support
08 Jan 2020 07:32
Getting 0x80070005 Error with OPC DA
Category: QuickOPC-Classic in .NET
Topic started 19 Dec 2019 07:33, by maged.emara
Last Post 19 Dec 2019 07:45
by support
Replies:1
Views:3600
Last Post by support
19 Dec 2019 07:45
Returning null value and type in some cases
Category: QuickOPC-Classic in .NET
Topic started 16 Dec 2019 16:25, by Mohammed
Last Post 19 Dec 2019 06:58
by support
Replies:5
Views:2035
Last Post by support
19 Dec 2019 06:58
Issue while retrieving data from OPC DA
Category: QuickOPC-Classic in .NET
Topic started 16 Dec 2019 15:35, by Mohammed
Last Post 16 Dec 2019 15:35
by Mohammed
Replies:0
Views:1322
Last Post by Mohammed
16 Dec 2019 15:35
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