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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.

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Subject Replies / Views Last Post
EasyDAClient Issue - Connection Attempt Causes Server Error
Category: Connections, Reconnections, COM/DCOM
Topic started 23 Oct 2013 23:06, by celder
Last Post 25 Oct 2013 05:22
by support
Replies:3
Views:5086
Last Post by support
25 Oct 2013 05:22
How to modify OPC connection parameters ?
Category: Connections, Reconnections, COM/DCOM
Topic started 20 Oct 2013 07:57, by krannila
Last Post 21 Oct 2013 06:58
by support
Replies:5
Views:5409
Last Post by support
21 Oct 2013 06:58
COMException in IIS8 / Windows Server 2012
Category: Connections, Reconnections, COM/DCOM
Topic started 16 Oct 2013 06:23, by patrick
Last Post 18 Oct 2013 08:41
by support
Replies:6
Views:7328
Last Post by support
18 Oct 2013 08:41
Trail Version "Access Denied" Error
Category: Connections, Reconnections, COM/DCOM
Topic started 16 Sep 2013 13:20, by mjs5498
Last Post 18 Sep 2013 05:37
by support
Replies:3
Views:6158
Last Post by support
18 Sep 2013 05:37
RPC Server unavailable when trying to connect across LAN
Category: Connections, Reconnections, COM/DCOM
Topic started 24 May 2013 21:48, by davejp21
Last Post 28 Jun 2013 12:59
by support
Replies:12
Views:23.8k
Last Post by support
28 Jun 2013 12:59
OPC Operation failure
Category: Connections, Reconnections, COM/DCOM
Topic started 02 Apr 2013 14:46, by arahming
Last Post 04 Apr 2013 06:30
by support
Replies:3
Views:4907
Last Post by support
04 Apr 2013 06:30
Publication in IIS 7
Category: Connections, Reconnections, COM/DCOM
Topic started 21 Jan 2013 12:31, by alissonhaubert
Last Post 31 Jan 2013 08:29
by admin
Replies:1
Views:5183
Last Post by admin
31 Jan 2013 08:29
Access is denied error
Category: Connections, Reconnections, COM/DCOM
Topic started 10 Jan 2013 16:52, by gmessoroch
Last Post 14 Jan 2013 20:38
by gmessoroch
Replies:13
Views:16k
Last Post by gmessoroch
14 Jan 2013 20:38
Problem reading and writing values to SISCO AX-S4 ICCP Server from Windows Service
Category: Connections, Reconnections, COM/DCOM
Topic started 29 Nov 2012 19:59, by gmessoroch
Last Post 01 Dec 2012 08:45
by support
Replies:2
Views:8851
Last Post by support
01 Dec 2012 08:45
Detect if OPC Server exists?
Category: Connections, Reconnections, COM/DCOM
Topic started 28 Nov 2012 15:42, by tlaford
Last Post 29 Nov 2012 17:54
by tlaford
Replies:3
Views:7095
Last Post by tlaford
29 Nov 2012 17:54
windows service not open connection opc
Category: Connections, Reconnections, COM/DCOM
Topic started 09 Oct 2012 17:36, by alissonhaubert
Last Post 15 Oct 2012 19:44
by support
Replies:10
Views:10.9k
Last Post by support
15 Oct 2012 19:44
Monitoring [OPC] Server State
Category: Connections, Reconnections, COM/DCOM
Topic started 30 Aug 2012 10:17, by support
Last Post 30 Aug 2012 10:17
by support
Replies:0
Views:6155
Last Post by support
30 Aug 2012 10:17
Trial version of Quick OPC Classic 5.1 - can it access the network?
Category: Connections, Reconnections, COM/DCOM
Topic started 12 Nov 2011 14:41, by support
Last Post 10 Aug 2012 14:37
by support
Replies:37
Views:18.2k
Last Post by support
10 Aug 2012 14:37
error, OPC operation failed - ClassFactory can not supply requested class
Category: Connections, Reconnections, COM/DCOM
Topic started 01 Aug 2012 18:59, by alissonhaubert
Last Post 02 Aug 2012 14:33
by support
Replies:4
Views:5389
Last Post by support
02 Aug 2012 14:33
"Access Denied" with .NET 4.0
Category: Connections, Reconnections, COM/DCOM
Topic started 13 Jun 2012 12:34, by Roshan123
Last Post 14 Jun 2012 07:11
by support
Replies:0
Views:4825
Last Post by support
14 Jun 2012 07:11
Access Denied Error Using VB.Net and Phoenix Contact
Category: Connections, Reconnections, COM/DCOM
Topic started 10 May 2012 20:18, by cuttajoe
Last Post 11 May 2012 09:58
by support
Replies:0
Views:5191
Last Post by support
11 May 2012 09:58
C# app connecting to RSLinx
Category: Connections, Reconnections, COM/DCOM
Topic started 16 Mar 2012 17:45, by support
Last Post 10 May 2012 15:33
by support
Replies:2
Views:9214
Last Post by support
10 May 2012 15:33
QuickOPC Access Denied Error when browsing Items from Siemens Simatic OPC Server
Category: Connections, Reconnections, COM/DCOM
Topic started 07 May 2012 10:23, by Niklas
Last Post 09 May 2012 11:03
by support
Replies:0
Views:4406
Last Post by support
09 May 2012 11:03
Slow first connection to SoftPLC
Category: Connections, Reconnections, COM/DCOM
Topic started 23 Feb 2012 13:06, by owe@eurosys.se
Last Post 22 Mar 2012 18:33
by owe@eurosys.se
Replies:5
Views:5560
Last Post by owe@eurosys.se
22 Mar 2012 18:33
confirming that the connection to an OPC server is valid and live
Category: Connections, Reconnections, COM/DCOM
Topic started 10 Mar 2012 09:33, by support
Last Post 10 Mar 2012 10:49
by support
Replies:0
Views:5058
Last Post by support
10 Mar 2012 10:49
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