feat(abcip): Transport option selects native or libplctag across driver, probe and CLI

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.AbCip/AbCipDriver.cs

@@ -150,9 +150,12 @@ public sealed class AbCipDriver : IDriver, IReadable, IWritable, ITagDiscovery,
         ArgumentNullException.ThrowIfNull(options);
         _options = options;
         _driverInstanceId = driverInstanceId;
-        _tagFactory = tagFactory ?? new LibplctagTagFactory();
-        _enumeratorFactory = enumeratorFactory ?? new LibplctagTagEnumeratorFactory();
-        _templateReaderFactory = templateReaderFactory ?? new LibplctagTemplateReaderFactory();
+        // Chosen once here and held across ReinitializeAsync (Shutdown+Initialize): a changed
+        // Transport in a reinit config is inert; a deploy recreates the instance instead.
+        var defaults = AbCipTransportFactories.For(options.Transport);
+        _tagFactory = tagFactory ?? defaults.Tags;
+        _enumeratorFactory = enumeratorFactory ?? defaults.Enumerators;
+        _templateReaderFactory = templateReaderFactory ?? defaults.Templates;
         _logger = logger ?? NullLogger<AbCipDriver>.Instance;
         _resolver = new EquipmentTagRefResolver<AbCipTagDefinition>(
             r => _tagsByRawPath.TryGetValue(r, out var t) ? t : null);
@@ -172,6 +175,9 @@ public sealed class AbCipDriver : IDriver, IReadable, IWritable, ITagDiscovery,
         _alarmProjection = new AbCipAlarmProjection(this, _options.AlarmPollInterval, _logger);
     }
 
+    /// <summary>The tag factory chosen at construction; exposed so tests can pin transport selection.</summary>
+    internal IAbCipTagFactory TagFactory => _tagFactory;
+
     /// <summary>Upper bound on the poll-loop failure backoff — adopts the S7-proven 30 s cap fleet-wide (05/STAB-8).</summary>
     private static readonly TimeSpan PollBackoffCap = TimeSpan.FromSeconds(30);
 

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.AbCip/AbCipDriverFactoryExtensions.cs

@@ -81,6 +81,8 @@ public static class AbCipDriverFactoryExtensions
                 ProbeTagPath = dto.Probe?.ProbeTagPath,
             },
             Timeout = PositiveTimeoutOrDefault(dto.TimeoutMs, 2_000),
+            Transport = ParseEnum<AbCipTransport>(dto.Transport, "driver", driverInstanceId, "Transport",
+                fallback: AbCipTransport.Libplctag),
             EnableControllerBrowse = dto.EnableControllerBrowse ?? false,
             EnableAlarmProjection = dto.EnableAlarmProjection ?? false,
             AlarmPollInterval = TimeSpan.FromMilliseconds(dto.AlarmPollIntervalMs ?? 1_000),
@@ -128,6 +130,11 @@ public static class AbCipDriverFactoryExtensions
 
     internal sealed class AbCipDriverConfigDto
     {
+        /// <summary>
+        /// Gets or sets the transport (<c>Libplctag</c> or <c>Native</c>, case-insensitive); absent means Libplctag.
+        /// </summary>
+        public string? Transport { get; init; }
+
         /// <summary>
         /// Gets or sets the timeout in milliseconds for operations.
         /// </summary>

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.AbCip/AbCipDriverProbe.cs

@@ -33,11 +33,12 @@ public sealed class AbCipDriverProbe : IDriverProbe
         Converters = { new JsonStringEnumConverter() },
     };
 
-    private readonly IAbCipTagFactory _tagFactory;
+    private readonly IAbCipTagFactory? _tagFactory;
 
     /// <summary>Initializes a new instance of the <see cref="AbCipDriverProbe"/> class.</summary>
-    /// <param name="tagFactory">Factory for the probe's tag runtime; defaults to the libplctag-backed one.</param>
-    public AbCipDriverProbe(IAbCipTagFactory? tagFactory = null) => _tagFactory = tagFactory ?? new LibplctagTagFactory();
+    /// <param name="tagFactory">Factory for the probe's tag runtime; when null the config's
+    ///     <c>Transport</c> selects the native or libplctag-backed one.</param>
+    public AbCipDriverProbe(IAbCipTagFactory? tagFactory = null) => _tagFactory = tagFactory;
 
     /// <inheritdoc />
     public string DriverType => "AbCip";
@@ -122,7 +123,7 @@ public sealed class AbCipDriverProbe : IDriverProbe
             ConnectionSize: firstDevice?.ConnectionSize ?? profile.DefaultConnectionSize,
             UseConnectedMessaging: profile.SupportsConnectedMessaging);
 
-        var rt = _tagFactory.Create(p);
+        var rt = (_tagFactory ?? AbCipTransportFactories.For(opts.Transport).Tags).Create(p);
         try
         {
             await rt.InitializeAsync(cts.Token);

src/Drivers/ZB.MOM.WW.OtOpcUa.Driver.AbCip/AbCipTransportFactories.cs

@@ -0,0 +1,14 @@
+namespace ZB.MOM.WW.OtOpcUa.Driver.AbCip;
+
+/// <summary>Maps an <see cref="AbCipTransport"/> to the matching trio of runtime factories.</summary>
+internal static class AbCipTransportFactories
+{
+    /// <summary>Returns the tag, enumerator and template-reader factories for <paramref name="transport"/>.</summary>
+    public static (IAbCipTagFactory Tags, IAbCipTagEnumeratorFactory Enumerators, IAbCipTemplateReaderFactory Templates)
+        For(AbCipTransport transport) => transport switch
+    {
+        AbCipTransport.Native => (new NativeAbCipTagFactory(), new NativeAbCipTagEnumeratorFactory(),
+            new NativeAbCipTemplateReaderFactory()),
+        _ => (new LibplctagTagFactory(), new LibplctagTagEnumeratorFactory(), new LibplctagTemplateReaderFactory()),
+    };
+}