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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
ReadMultipleItemValues not very fast
Category: Reading, Writing, Subscriptions, Property Access
Topic started 04 Mar 2011 08:57, by Markus
Last Post 30 Mar 2011 15:13
by support
Replies:12
Views:9131
Last Post by support
30 Mar 2011 15:13
PHP - Behaviour when subscribing to non-existent tag
Category: Reading, Writing, Subscriptions, Property Access
Topic started 01 Feb 2011 02:42, by steveh
Last Post 01 Feb 2011 22:56
by steveh
Replies:1
Views:5556
Last Post by steveh
01 Feb 2011 22:56
Ghost 0xC0040007 Error
Category: Reading, Writing, Subscriptions, Property Access
Topic started 20 Nov 2010 14:55, by support
Last Post 20 Nov 2010 14:55
by support
Replies:0
Views:4616
Last Post by support
20 Nov 2010 14:55
Update rate remains at the fastest rate defined
Category: Reading, Writing, Subscriptions, Property Access
Topic started 01 Oct 2010 03:49, by steveh
Last Post 14 Oct 2010 06:55
by admin
Replies:2
Views:4807
Last Post by admin
14 Oct 2010 06:55
high CPU usage in PHP, using ReadMultipleItems, ToString
Category: Reading, Writing, Subscriptions, Property Access
Topic started 29 Sep 2010 02:59, by steveh
Last Post 12 Oct 2010 12:14
by steveh
Replies:11
Views:10.2k
Last Post by steveh
12 Oct 2010 12:14
QuickOPC-COM and PHP [ReadMultipleItems]
Category: Reading, Writing, Subscriptions, Property Access
Topic started 27 Jul 2010 22:11, by reel
Last Post 28 Jul 2010 16:56
by reel
Replies:3
Views:5738
Last Post by reel
28 Jul 2010 16:56
0xc0040406 returned from the WriteItemValue method (OPC_E_NOTSUPPORTED)
Category: Reading, Writing, Subscriptions, Property Access
Topic started 04 Jun 2010 16:04, by support
Last Post 20 Jun 2010 19:00
by admin
Replies:2
Views:5451
Last Post by admin
20 Jun 2010 19:00
Hang or timeout with QuickOPC-COM build 5.0.1122.1
Category: Reading, Writing, Subscriptions, Property Access
Topic started 14 Apr 2010 12:01, by support
Last Post 14 Apr 2010 12:01
by support
Replies:0
Views:4009
Last Post by support
14 Apr 2010 12:01
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