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Auto: ablegacy-2 — MicroLogix function-file letters

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Closes #245
This commit is contained in:
Joseph Doherty
2026-04-25 13:32:23 -04:00
parent ccf2e3a9c0
commit f2bc36349e
4 changed files with 171 additions and 6 deletions
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src/ZB.MOM.WW.OtOpcUa.Driver.AbLegacy/AbLegacyDataType.cs
+67
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@@ -26,6 +26,72 @@ public enum AbLegacyDataType
CounterElement,
/// <summary>Control sub-element — caller addresses <c>.LEN</c>, <c>.POS</c>, <c>.EN</c>, <c>.DN</c>, <c>.ER</c>.</summary>
ControlElement,
/// <summary>
/// MicroLogix 1100/1400 function-file sub-element (RTC/HSC/DLS/MMI/PTO/PWM/STI/EII/IOS/BHI).
/// Sub-element catalogue lives in <see cref="AbLegacyFunctionFile.SubElementType"/>.
/// </summary>
MicroLogixFunctionFile,
}
/// <summary>
/// MicroLogix function-file sub-element catalogue. Covers the most-commonly-addressed members
/// per file — not exhaustive (Rockwell defines 30+ on RTC alone). Unknown sub-elements fall
/// back to <see cref="DriverDataType.Int32"/> at the <see cref="AbLegacyDataTypeExtensions"/>
/// boundary so the driver never refuses a tag the customer happens to know about.
/// </summary>
public static class AbLegacyFunctionFile
{
/// <summary>
/// Driver-surface type for <paramref name="fileLetter"/>.<paramref name="subElement"/>.
/// Returns <see cref="DriverDataType.Int32"/> if the sub-element is unrecognised — keeps
/// the driver permissive without forcing every quirk into the catalogue.
/// </summary>
public static DriverDataType SubElementType(string fileLetter, string? subElement)
{
if (subElement is null) return DriverDataType.Int32;
var key = (fileLetter.ToUpperInvariant(), subElement.ToUpperInvariant());
return key switch
{
// Real-time clock — all stored as Int16 (year is 4-digit Int16).
("RTC", "HR") or ("RTC", "MIN") or ("RTC", "SEC") or
("RTC", "MON") or ("RTC", "DAY") or ("RTC", "YR") or ("RTC", "DOW") => DriverDataType.Int32,
("RTC", "DS") or ("RTC", "BL") or ("RTC", "EN") => DriverDataType.Boolean,
// High-speed counter — accumulator/preset are Int32, status flags are bits.
("HSC", "ACC") or ("HSC", "PRE") or ("HSC", "OVF") or ("HSC", "UNF") => DriverDataType.Int32,
("HSC", "EN") or ("HSC", "UF") or ("HSC", "IF") or
("HSC", "IN") or ("HSC", "IH") or ("HSC", "IL") or
("HSC", "DN") or ("HSC", "CD") or ("HSC", "CU") => DriverDataType.Boolean,
// Daylight saving + memory module info.
("DLS", "STR") or ("DLS", "STD") => DriverDataType.Int32,
("DLS", "EN") => DriverDataType.Boolean,
("MMI", "FT") or ("MMI", "LBN") => DriverDataType.Int32,
("MMI", "MP") or ("MMI", "MCP") => DriverDataType.Boolean,
// Pulse-train / PWM output blocks.
("PTO", "ACC") or ("PTO", "OF") or ("PTO", "IDA") or ("PTO", "ODA") => DriverDataType.Int32,
("PTO", "EN") or ("PTO", "DN") or ("PTO", "EH") or ("PTO", "ED") or
("PTO", "RP") or ("PTO", "OUT") => DriverDataType.Boolean,
("PWM", "ACC") or ("PWM", "OF") or ("PWM", "PE") or ("PWM", "PD") => DriverDataType.Int32,
("PWM", "EN") or ("PWM", "DN") or ("PWM", "EH") or ("PWM", "ED") or
("PWM", "RP") or ("PWM", "OUT") => DriverDataType.Boolean,
// Selectable timed interrupt + event input interrupt.
("STI", "SPM") or ("STI", "ER") or ("STI", "PFN") => DriverDataType.Int32,
("STI", "EN") or ("STI", "TIE") or ("STI", "DN") or
("STI", "PS") or ("STI", "ED") => DriverDataType.Boolean,
("EII", "PFN") or ("EII", "ER") => DriverDataType.Int32,
("EII", "EN") or ("EII", "TIE") or ("EII", "PE") or
("EII", "ES") or ("EII", "ED") => DriverDataType.Boolean,
// I/O status + base hardware info — mostly status flags + a few counters.
("IOS", "ID") or ("IOS", "TYP") => DriverDataType.Int32,
("BHI", "OS") or ("BHI", "FRN") or ("BHI", "BSN") or ("BHI", "CC") => DriverDataType.Int32,
_ => DriverDataType.Int32,
};
}
}
/// <summary>Map a PCCC data type to the driver-surface <see cref="DriverDataType"/>.</summary>
@@ -40,6 +106,7 @@ public static class AbLegacyDataTypeExtensions
AbLegacyDataType.String => DriverDataType.String,
AbLegacyDataType.TimerElement or AbLegacyDataType.CounterElement
or AbLegacyDataType.ControlElement => DriverDataType.Int32,
AbLegacyDataType.MicroLogixFunctionFile => DriverDataType.Int32,
_ => DriverDataType.Int32,
};
}