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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.

Do not use the Contact page for technical issues.

Subject Replies / Views Last Post
Example - OPC SubscribeMultipleItems in VC++
Category: Reading, Writing, Subscriptions, Property Access
Topic started 26 May 2014 08:46, by support
Last Post 26 May 2014 08:46
by support
Replies:0
Views:10.7k
Last Post by support
26 May 2014 08:46
 
QuickOPC VBScript ASP example script not returning value
Category: Reading, Writing, Subscriptions, Property Access
Topic started 15 Aug 2024 20:45, by Kyle.Oshima@caltrol.com
Last Post 13 Sep 2024 06:48
by support
Replies:24
Views:4367
Last Post by support
13 Sep 2024 06:48
Instantiate the client objects multiple times
Category: Reading, Writing, Subscriptions, Property Access
Topic started 12 Feb 2021 14:56, by mozesa
Last Post 20 Feb 2024 17:48
by support
Replies:14
Views:5245
Last Post by support
20 Feb 2024 17:48
Read ad Write multiple values
Category: Reading, Writing, Subscriptions, Property Access
Topic started 12 Aug 2019 18:26, by Jesus Rodriguez
Last Post 20 Feb 2024 17:41
by support
Replies:6
Views:1995
Last Post by support
20 Feb 2024 17:41
Python examples
Category: Reading, Writing, Subscriptions, Property Access
Topic started 29 May 2018 13:54, by filin
Last Post 20 Feb 2024 17:40
by support
Replies:3
Views:3379
Last Post by support
20 Feb 2024 17:40
Getting 'Read not completed' and 'Write not completed' errors while trying to read from Softing.OPC.S7
Category: Reading, Writing, Subscriptions, Property Access
Topic started 27 Feb 2017 17:15, by djorsher
Last Post 20 Feb 2024 17:39
by support
Replies:8
Views:6540
Last Post by support
20 Feb 2024 17:39
Setting DataSource when reading values through Python
Category: Reading, Writing, Subscriptions, Property Access
Topic started 26 Mar 2016 22:56, by jihaekor
Last Post 20 Feb 2024 17:38
by support
Replies:4
Views:5541
Last Post by support
20 Feb 2024 17:38
Re: Guidance on polling rates, number of points
Category: Reading, Writing, Subscriptions, Property Access
Topic started 10 Aug 2012 20:34, by stevedh
Last Post 20 Feb 2024 17:37
by support
Replies:2
Views:4929
Last Post by support
20 Feb 2024 17:37
Writing Value
Category: Reading, Writing, Subscriptions, Property Access
Topic started 06 Oct 2016 10:49, by cassioss
Last Post 21 Nov 2023 13:42
by support
Replies:3
Views:5391
Last Post by support
21 Nov 2023 13:42
Reading values with OpcLabs.BaseLib.Collections.ElasticVector
Category: Reading, Writing, Subscriptions, Property Access
Topic started 15 Sep 2023 07:53, by info@software2000.it
Last Post 15 Sep 2023 09:38
by support
Replies:2
Views:668
Last Post by support
15 Sep 2023 09:38
System.OutOfMemoryException while reading OPC UA with COM and Visual Basic 6
Category: Reading, Writing, Subscriptions, Property Access
Topic started 30 May 2023 09:24, by abiegert
Last Post 28 Jun 2023 14:53
by abiegert
Replies:2
Views:1072
Last Post by abiegert
28 Jun 2023 14:53
How to use minimumQuality in WaitForMultipleItemValues
Category: Reading, Writing, Subscriptions, Property Access
Topic started 09 May 2023 02:18, by mlebelle
Last Post 09 May 2023 08:53
by support
Replies:1
Views:624
Last Post by support
09 May 2023 08:53
EasyDAClient connections and subscriptions
Category: Reading, Writing, Subscriptions, Property Access
Topic started 30 Jun 2022 05:02, by mlebelle
Last Post 08 Nov 2022 14:38
by support
Replies:5
Views:4459
Last Post by support
08 Nov 2022 14:38
VBScript EasyDAClient event hooking without WScript
Category: Reading, Writing, Subscriptions, Property Access
Topic started 20 Sep 2022 20:53, by nknox
Last Post 26 Sep 2022 15:10
by nknox
Replies:2
Views:2302
Last Post by nknox
26 Sep 2022 15:10
error from server when writing
Category: Reading, Writing, Subscriptions, Property Access
Topic started 08 Mar 2022 11:45, by ulix86
Last Post 14 Mar 2022 12:57
by support
Replies:10
Views:3739
Last Post by support
14 Mar 2022 12:57
force refresh value
Category: Reading, Writing, Subscriptions, Property Access
Topic started 01 Mar 2022 10:59, by ulix86
Last Post 01 Mar 2022 18:09
by support
Replies:3
Views:1364
Last Post by support
01 Mar 2022 18:09
VB6 - How to read a field an array of string
Category: Reading, Writing, Subscriptions, Property Access
Topic started 11 Dec 2021 15:43, by albi.majun.1960@gmail.com
Last Post 13 Dec 2021 06:43
by support
Replies:3
Views:1367
Last Post by support
13 Dec 2021 06:43
How to connect to SPS Siemens S7
Category: Reading, Writing, Subscriptions, Property Access
Topic started 17 Jun 2021 12:48, by Götz Heinemann
Last Post 15 Jul 2021 13:54
by support
Replies:17
Views:3538
Last Post by support
15 Jul 2021 13:54
Subscribing to a non-existent item
Category: Reading, Writing, Subscriptions, Property Access
Topic started 07 Jul 2021 08:52, by lamar
Last Post 08 Jul 2021 12:57
by lamar
Replies:30
Views:3987
Last Post by lamar
08 Jul 2021 12:57
Data exchange speed
Category: Reading, Writing, Subscriptions, Property Access
Topic started 28 Jun 2021 10:56, by lamar
Last Post 07 Jul 2021 10:28
by lamar
Replies:9
Views:962
Last Post by lamar
07 Jul 2021 10:28
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