Professional OPC
Development Tools

logos

lupa

Online Forums

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.

  1. Forum
  3. Discussions
  5. QuickOPC-Classic in .NET
  7. Reading, Writing, Subscriptions, Property Access
  9. Different Timestamps on OPC-Values depending on access-mode

Different Timestamps on OPC-Values depending on access-mode

More
17 Sep 2012 15:24 #1021 by support
Replied by support on topic Re: Different Timestamps on OPC-Values depending on access-mode
All timestamps in OPC Data Access are in UTC. There was a bug in conversions from COM types to .NET in earlier versions. The current version (5.12) works correctly.

Please Log in or Create an account to join the conversation.

More
17 Sep 2012 09:50 #1020 by DKahlert
Different Timestamps on OPC-Values depending on access-mode was created by DKahlert
Hello,
we are working with the EasyOPC-DA.NET-library, version 5.0.
When we access an OPC-variable with ReadItem, we get the timestamp of the value with DateTimeKind = Unspecified. Reading the same OPC-variable via an event handler with SubscribeItem, the timestamp of the same value has DateTimeKind = UTC.
At first we thought that this was a problem of the OPC-server but since a few weeks, we are using the same application with a second OPC-server and nothing changed. So it must be a problem of the EasyOPC-library. Is this problem solved in a newer version of the library?
Thanks in advance

Please Log in or Create an account to join the conversation.

Moderators: support
  1. Forum
  3. Discussions
  5. QuickOPC-Classic in .NET
  7. Reading, Writing, Subscriptions, Property Access
  9. Different Timestamps on OPC-Values depending on access-mode
Time to create page: 0.043 seconds