Joseph Doherty
64e3fbe035
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Adds <summary>, <param>, <typeparam>, and <inheritdoc/> tags to public members surfaced by commentchecker — resolves 5,847 of 5,869 issues (99.6%) across three /fixdocs passes.
49 lines
2.3 KiB
C#
49 lines
2.3 KiB
C#
namespace ZB.MOM.WW.OtOpcUa.Driver.Historian.Wonderware.Backend;
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/// <summary>
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/// Maps a raw OPC DA quality byte (as returned by Wonderware Historian's <c>OpcQuality</c>)
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/// to an OPC UA <c>StatusCode</c> uint. Preserves specific codes (BadNotConnected,
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/// UncertainSubNormal, etc.) instead of collapsing to Good/Uncertain/Bad categories.
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/// Mirrors v1 <c>QualityMapper.MapToOpcUaStatusCode</c> without pulling in OPC UA types —
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/// the returned value is the 32-bit OPC UA <c>StatusCode</c> wire encoding that the Proxy
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/// surfaces directly as <c>DataValueSnapshot.StatusCode</c>.
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/// </summary>
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public static class HistorianQualityMapper
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{
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/// <summary>
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/// Map an 8-bit OPC DA quality byte to the corresponding OPC UA StatusCode. The byte
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/// family bits decide the category (Good >= 192, Uncertain 64-191, Bad 0-63); the
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/// low-nibble subcode selects the specific code.
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/// </summary>
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/// <param name="q">The OPC DA quality byte.</param>
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/// <returns>The corresponding OPC UA status code.</returns>
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public static uint Map(byte q) => q switch
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{
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// Good family (192+)
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192 => 0x00000000u, // Good
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216 => 0x00D80000u, // Good_LocalOverride
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// Uncertain family (64-191)
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64 => 0x40000000u, // Uncertain
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68 => 0x40900000u, // Uncertain_LastUsableValue
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80 => 0x40930000u, // Uncertain_SensorNotAccurate
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84 => 0x40940000u, // Uncertain_EngineeringUnitsExceeded
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88 => 0x40950000u, // Uncertain_SubNormal
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// Bad family (0-63)
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0 => 0x80000000u, // Bad
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4 => 0x80890000u, // Bad_ConfigurationError
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8 => 0x808A0000u, // Bad_NotConnected
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12 => 0x808B0000u, // Bad_DeviceFailure
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16 => 0x808C0000u, // Bad_SensorFailure
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20 => 0x80050000u, // Bad_CommunicationError
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24 => 0x808D0000u, // Bad_OutOfService
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32 => 0x80320000u, // Bad_WaitingForInitialData
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// Unknown code — fall back to the category so callers still get a sensible bucket.
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_ when q >= 192 => 0x00000000u,
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_ when q >= 64 => 0x40000000u,
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_ => 0x80000000u,
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};
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}
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