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  1. Forum
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  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

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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.

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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 Is this problem solved in a newer version of the library?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

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  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
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