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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. You do not have to be a licensed user of our product.

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
Best way of confirming that data has been received - resultArray.exception ?
Category: Reading, Writing, Subscriptions, Property Access
Topic started 29 Apr 2012 18:31, by support
Last Post 29 Apr 2012 18:31
by support
Replies:0
Views:3539
Last Post by support
29 Apr 2012 18:31
Subscribing to MultipleItems
Category: Reading, Writing, Subscriptions, Property Access
Topic started 29 Apr 2012 18:30, by support
Last Post 29 Apr 2012 18:30
by support
Replies:0
Views:3427
Last Post by support
29 Apr 2012 18:30
MultipleItem Write - Delay Code
Category: Reading, Writing, Subscriptions, Property Access
Topic started 29 Apr 2012 18:27, by support
Last Post 29 Apr 2012 18:27
by support
Replies:0
Views:3800
Last Post by support
29 Apr 2012 18:27
opcDAClient.UpdateRates.WriteAutomatic = -1?
Category: Reading, Writing, Subscriptions, Property Access
Topic started 29 Apr 2012 18:23, by support
Last Post 29 Apr 2012 18:23
by support
Replies:0
Views:3245
Last Post by support
29 Apr 2012 18:23
Actions on comms failure [OPC qualities, errors, and related stuff]
Category: Reading, Writing, Subscriptions, Property Access
Topic started 29 Apr 2012 18:21, by support
Last Post 29 Apr 2012 18:21
by support
Replies:0
Views:3383
Last Post by support
29 Apr 2012 18:21
EasyOPC parameter information
Category: Reading, Writing, Subscriptions, Property Access
Topic started 29 Apr 2012 18:17, by support
Last Post 29 Apr 2012 18:17
by support
Replies:0
Views:3466
Last Post by support
29 Apr 2012 18:17
How to properly check for errors, how to get numeric OPC quality
Category: Reading, Writing, Subscriptions, Property Access
Topic started 21 Apr 2012 14:33, by support
Last Post 21 Apr 2012 14:33
by support
Replies:0
Views:3389
Last Post by support
21 Apr 2012 14:33
DWORD becomes Int64
Category: Reading, Writing, Subscriptions, Property Access
Topic started 04 Apr 2012 07:45, by support
Last Post 04 Apr 2012 07:45
by support
Replies:0
Views:6580
Last Post by support
04 Apr 2012 07:45
How to pass a State object to ReadMultipleItems
Category: Reading, Writing, Subscriptions, Property Access
Topic started 23 Mar 2012 19:55, by support
Last Post 23 Mar 2012 19:55
by support
Replies:0
Views:3456
Last Post by support
23 Mar 2012 19:55
Different Timestamp in read and subscribe item
Category: Reading, Writing, Subscriptions, Property Access
Topic started 13 Mar 2012 08:24, by pchirimbu
Last Post 18 Mar 2012 10:06
by support
Replies:1
Views:3779
Last Post by support
18 Mar 2012 10:06
Read or subscribe? (with "trigger" tags)
Category: Reading, Writing, Subscriptions, Property Access
Topic started 16 Mar 2012 09:44, by support
Last Post 16 Mar 2012 09:44
by support
Replies:0
Views:3006
Last Post by support
16 Mar 2012 09:44
Best approach to process returned values
Category: Reading, Writing, Subscriptions, Property Access
Topic started 14 Mar 2012 07:39, by support
Last Post 14 Mar 2012 07:57
by support
Replies:0
Views:3415
Last Post by support
14 Mar 2012 07:57
MultipleItemChanged
Category: Reading, Writing, Subscriptions, Property Access
Topic started 15 Feb 2012 08:09, by hedgehog
Last Post 08 Mar 2012 12:22
by hedgehog
Replies:5
Views:4613
Last Post by hedgehog
08 Mar 2012 12:22
UnsubscribeMultipleItems / UnsubscribeAllItems
Category: Reading, Writing, Subscriptions, Property Access
Topic started 13 Feb 2012 13:23, by hedgehog
Last Post 14 Feb 2012 12:52
by hedgehog
Replies:1
Views:3773
Last Post by hedgehog
14 Feb 2012 12:52
Notificaiton about new group creation
Category: Reading, Writing, Subscriptions, Property Access
Topic started 02 Feb 2012 13:29, by georgiuk
Last Post 03 Feb 2012 11:11
by georgiuk
Replies:4
Views:4651
Last Post by georgiuk
03 Feb 2012 11:11
write tag error MX OPC Server 6.01
Category: Reading, Writing, Subscriptions, Property Access
Topic started 09 Jan 2012 10:15, by majin
Last Post 09 Jan 2012 18:01
by support
Replies:0
Views:5909
Last Post by support
09 Jan 2012 18:01
Sync and Async Reads
Category: Reading, Writing, Subscriptions, Property Access
Topic started 18 Dec 2011 17:52, by support
Last Post 18 Dec 2011 17:52
by support
Replies:0
Views:3507
Last Post by support
18 Dec 2011 17:52
Deadband error reading tags
Category: Reading, Writing, Subscriptions, Property Access
Topic started 02 Dec 2011 09:11, by support
Last Post 06 Dec 2011 10:36
by support
Replies:4
Views:4307
Last Post by support
06 Dec 2011 10:36
How to get the OPC data type of the returned value (tag)?
Category: Reading, Writing, Subscriptions, Property Access
Topic started 06 Oct 2011 14:58, by julian
Last Post 29 Nov 2011 12:49
by support
Replies:4
Views:5437
Last Post by support
29 Nov 2011 12:49
Topic Timeout
Category: Reading, Writing, Subscriptions, Property Access
Topic started 03 Nov 2011 07:52, by owe@eurosys.se
Last Post 03 Nov 2011 11:39
by support
Replies:0
Views:3983
Last Post by support
03 Nov 2011 11:39
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