Joseph Doherty
80b2d7f8c3
IEC 61131-3 TIME/TOD now surface as TimeSpan (UA Duration); DATE/DT surface as DateTime (UTC). The wire form stays UDINT — AdsTwinCATClient post-processes raw values in ReadValueAsync and OnAdsNotificationEx, and accepts native CLR types in ConvertForWrite. Added Duration to DriverDataType (back-compat: existing switches default to BaseDataType for unknown enum values) and mapped it to DataTypeIds.Duration in DriverNodeManager. Closes #306
54 lines
2.3 KiB
C#
54 lines
2.3 KiB
C#
using ZB.MOM.WW.OtOpcUa.Core.Abstractions;
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namespace ZB.MOM.WW.OtOpcUa.Driver.TwinCAT;
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/// <summary>
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/// TwinCAT / IEC 61131-3 atomic data types. Wider type surface than Logix because IEC adds
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/// <c>WSTRING</c> (UTF-16) and <c>TIME</c>/<c>DATE</c>/<c>DT</c>/<c>TOD</c> variants.
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/// </summary>
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public enum TwinCATDataType
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{
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Bool,
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SInt, // signed 8-bit
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USInt, // unsigned 8-bit
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Int, // signed 16-bit
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UInt, // unsigned 16-bit
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DInt, // signed 32-bit
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UDInt, // unsigned 32-bit
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LInt, // signed 64-bit
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ULInt, // unsigned 64-bit
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Real, // 32-bit IEEE-754
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LReal, // 64-bit IEEE-754
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String, // ASCII string
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WString,// UTF-16 string
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Time, // TIME — ms since epoch of day, stored as UDINT
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Date, // DATE — days since 1970-01-01, stored as UDINT
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DateTime, // DT — seconds since 1970-01-01, stored as UDINT
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TimeOfDay,// TOD — ms since midnight, stored as UDINT
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/// <summary>UDT / FB instance. Resolved per member at discovery time.</summary>
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Structure,
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}
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public static class TwinCATDataTypeExtensions
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{
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public static DriverDataType ToDriverDataType(this TwinCATDataType t) => t switch
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{
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TwinCATDataType.Bool => DriverDataType.Boolean,
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TwinCATDataType.SInt or TwinCATDataType.USInt
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or TwinCATDataType.Int or TwinCATDataType.UInt
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or TwinCATDataType.DInt or TwinCATDataType.UDInt => DriverDataType.Int32,
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TwinCATDataType.LInt => DriverDataType.Int64,
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TwinCATDataType.ULInt => DriverDataType.UInt64,
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TwinCATDataType.Real => DriverDataType.Float32,
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TwinCATDataType.LReal => DriverDataType.Float64,
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TwinCATDataType.String or TwinCATDataType.WString => DriverDataType.String,
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// IEC 61131-3 TIME / TOD are durations (ms); DATE / DT are absolute timestamps.
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// The wire form is UDINT but the driver post-processes into TimeSpan / DateTime so the
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// address space surfaces native UA Duration / DateTime instead of opaque integers.
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TwinCATDataType.Time or TwinCATDataType.TimeOfDay => DriverDataType.Duration,
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TwinCATDataType.Date or TwinCATDataType.DateTime => DriverDataType.DateTime,
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TwinCATDataType.Structure => DriverDataType.String,
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_ => DriverDataType.Int32,
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};
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}
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