OPC Interop Settings Add Compatibility for Non-Compliant Clients

Important Notes:

  • With the "Respect Client Locale" setting, a representative use case example is:
    • A string representing a floating point number such as 1,200 would be converted to One Thousand - Two Hundred if converted using English metrics, but would be One and Two-Tenths if converted using German metrics (because the metric system interprets a comma the same as the Imperial system interprets a decimal).
    • If German software is running on an English OS, users need to determine how the comma is handled. This setting allows for such flexibility. By default, the server respects the Locale ID of the OPC client application.
  • With the "Bad Quality Items as S_FALSE" setting, this should only need to be disabled if you're OPC DA client is an older client that is still expecting the deprecated legacy response of E_FAIL (0x80004005) for items without good quality from TOP Server.

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The demo is the full product once licensed. Once a client application connects to the  TOP Server, the TOP Server runtime will operate for 2 hours at a time. At the end of the 2 hour demo period, the demo timer must be reset by restarting the TOP Server runtime service.

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