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Reading, Writing, Subscriptions, Property Access 287 topics

Subject Replies / Views Last Post
"Object reference not set to an instance of an object" reading from remote OPC server
Category: Reading, Writing, Subscriptions, Property Access
Topic started 06 Oct 2017 14:24, by SENTHILKUMAR
Last Post 07 Oct 2017 09:19
by support
Replies:1
Views:5141
Last Post by support
07 Oct 2017 09:19
Reading multiple items from a remote server
Category: Reading, Writing, Subscriptions, Property Access
Topic started 21 Aug 2017 08:25, by support
Last Post 21 Aug 2017 08:32
by support
Replies:1
Views:3751
Last Post by support
21 Aug 2017 08:32
Variable changes seem to accumulate for 1s before MultipleVariablesChanged event fires
Category: Reading, Writing, Subscriptions, Property Access
Topic started 03 Aug 2017 14:49, by Christoph
Last Post 04 Aug 2017 11:23
by support
Replies:3
Views:3701
Last Post by support
04 Aug 2017 11:23
0x80040202 (CONNECT_E_CANNOTCONNECT ?)
Category: Reading, Writing, Subscriptions, Property Access
Topic started 12 Jul 2017 11:10, by chrisbonnar
Last Post 14 Jul 2017 08:16
by support
Replies:3
Views:6724
Last Post by support
14 Jul 2017 08:16
Occasional exception when writing to tag
Category: Reading, Writing, Subscriptions, Property Access
Topic started 11 Sep 2014 22:55, by cromarty
Last Post 07 Jun 2017 11:00
by support
Replies:10
Views:10.8k
Last Post by support
07 Jun 2017 11:00
How to know if the item did not change or broken?
Category: Reading, Writing, Subscriptions, Property Access
Topic started 07 Apr 2017 16:43, by Li
Last Post 10 Apr 2017 09:18
by support
Replies:1
Views:3619
Last Post by support
10 Apr 2017 09:18
Value conversion and other [browse issues]
Category: Reading, Writing, Subscriptions, Property Access
Topic started 05 Apr 2017 12:44, by support
Last Post 07 Apr 2017 08:04
by support
Replies:12
Views:8567
Last Post by support
07 Apr 2017 08:04
Window Service and OPC Subscription
Category: Reading, Writing, Subscriptions, Property Access
Topic started 28 Mar 2017 09:59, by LuisGar
Last Post 04 Apr 2017 08:46
by support
Replies:8
Views:5673
Last Post by support
04 Apr 2017 08:46
Not Able to write tag on software toolbox top server v4
Category: Reading, Writing, Subscriptions, Property Access
Topic started 09 Mar 2017 09:37, by sushant1459
Last Post 09 Mar 2017 12:48
by support
Replies:3
Views:4279
Last Post by support
09 Mar 2017 12:48
An OPC operation failure with error code -1967439359
Category: Reading, Writing, Subscriptions, Property Access
Topic started 02 Feb 2017 13:48, by Jukka
Last Post 02 Feb 2017 14:35
by support
Replies:1
Views:4400
Last Post by support
02 Feb 2017 14:35
EasyUAClient.WriteMultipleValues takes almost 2 seconds to write to an Int16 field
Category: Reading, Writing, Subscriptions, Property Access
Topic started 26 Jan 2017 14:02, by andis59
Last Post 26 Jan 2017 15:19
by andis59
Replies:4
Views:5238
Last Post by andis59
26 Jan 2017 15:19
An OPC operation failure with error code -1073430509 (0xC004C013) occurred
Category: Reading, Writing, Subscriptions, Property Access
Topic started 12 Jan 2017 11:41, by Jukka
Last Post 18 Jan 2017 17:08
by support
Replies:7
Views:7629
Last Post by support
18 Jan 2017 17:08
Writing Value, timestamp, quality for OPC DA 2.05A
Category: Reading, Writing, Subscriptions, Property Access
Topic started 19 Dec 2016 16:58, by michiel_tukker
Last Post 19 Dec 2016 18:19
by support
Replies:1
Views:5905
Last Post by support
19 Dec 2016 18:19
Getting the item's type
Category: Reading, Writing, Subscriptions, Property Access
Topic started 10 Dec 2016 09:09, by support
Last Post 10 Dec 2016 09:12
by support
Replies:1
Views:3682
Last Post by support
10 Dec 2016 09:12
Example needed - subscribe to OPC item change event
Category: Reading, Writing, Subscriptions, Property Access
Topic started 17 Oct 2016 13:30, by support
Last Post 18 Oct 2016 06:07
by den Bekker
Replies:4
Views:5639
Last Post by den Bekker
18 Oct 2016 06:07
(Array)e.Vtq.Value = NULL
Category: Reading, Writing, Subscriptions, Property Access
Topic started 27 Sep 2016 11:57, by tmouslih
Last Post 27 Sep 2016 13:29
by support
Replies:1
Views:4491
Last Post by support
27 Sep 2016 13:29
UnsubscribeMultipleItems and UnsubscribeAllItems hang indefinately
Category: Reading, Writing, Subscriptions, Property Access
Topic started 25 Aug 2016 08:53, by sebpinski
Last Post 31 Aug 2016 17:06
by support
Replies:4
Views:5349
Last Post by support
31 Aug 2016 17:06
Need help on WriteMultipleItems or WriteMultipleItemValues in VB.NET
Category: Reading, Writing, Subscriptions, Property Access
Topic started 27 Jul 2016 13:38, by Sandro@More
Last Post 28 Jul 2016 07:49
by Sandro@More
Replies:4
Views:4815
Last Post by Sandro@More
28 Jul 2016 07:49
Data Quality Issues - OPCLabs client and Softing's OPC server
Category: Reading, Writing, Subscriptions, Property Access
Topic started 27 Jun 2016 14:00, by bojan
Last Post 06 Jul 2016 14:15
by bojan
Replies:5
Views:5474
Last Post by bojan
06 Jul 2016 14:15
Xml demo application: OPC NET API failure result "E_BADTYPE"
Category: Reading, Writing, Subscriptions, Property Access
Topic started 27 Jun 2016 16:49, by goosvanbeek
Last Post 27 Jun 2016 17:54
by goosvanbeek
Replies:2
Views:5036
Last Post by goosvanbeek
27 Jun 2016 17:54
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