Joseph Doherty
f9fbd4ee0d
R07 U7: Driver.Cli.Common gains RunCancellableAsync (moved up from AbLegacy) and CreateChangeLineWriter (one lock-serialised line per change; a failing console write is logged and swallowed so it cannot fault the poll loop). AbCip probe/read/write print Cancelled. on Ctrl-C instead of a stack trace, and AbCip subscribe uses the shared writer. SnapshotFormatter renders arrays/lists as [a, b, c] instead of System.Int32[]. Refs #747 Claude-Session: https://claude.ai/code/session_01Ub9hGmYLQvn9XETzw7CMsT
72 lines
3.1 KiB
C#
72 lines
3.1 KiB
C#
using CliFx.Attributes;
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using CliFx.Infrastructure;
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using ZB.MOM.WW.OtOpcUa.Driver.Cli.Common;
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namespace ZB.MOM.WW.OtOpcUa.Driver.AbCip.Cli.Commands;
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/// <summary>
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/// Probes an AB CIP gateway: initialises the driver (connects via libplctag), reads a
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/// single tag, and prints health + the read result. Fastest way to answer "is the PLC
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/// up + reachable + speaking CIP via this path?".
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/// </summary>
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[Command("probe", Description = "Verify the AB CIP gateway is reachable and a sample tag reads.")]
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public sealed class ProbeCommand : AbCipCommandBase
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{
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/// <summary>Gets the tag path to probe.</summary>
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[CommandOption("tag", 't', Description =
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"Tag path to probe — a real tag on the controller. Any name works to prove reachability: " +
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"libplctag knows only @raw, @tags and @udt/ as special names, so anything else (including " +
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"'@raw_cpu_type', which no controller defines) is sent as an ordinary symbolic name and the " +
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"controller's 'tag does not exist' answer already proves the CIP session is live.",
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IsRequired = true)]
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public string TagPath { get; init; } = default!;
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/// <summary>Gets the data type of the probe tag.</summary>
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[CommandOption("type", Description =
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"Logix atomic type of the probe tag (default DInt).")]
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public AbCipDataType DataType { get; init; } = AbCipDataType.DInt;
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/// <inheritdoc />
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public override async ValueTask ExecuteAsync(IConsole console)
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{
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ConfigureLogging();
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RejectStructure(DataType);
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var ct = console.RegisterCancellationHandler();
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var probeTag = new AbCipTagDefinition(
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Name: "__probe",
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DeviceHostAddress: Gateway,
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TagPath: TagPath,
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DataType: DataType,
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Writable: false);
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var options = BuildOptions([probeTag]);
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await using var driver = new AbCipDriver(options, DriverInstanceId);
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try
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{
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// Ctrl-C prints "Cancelled." instead of an OperationCanceledException stack trace (review 07 U7).
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await RunCancellableAsync(console, ct, async () =>
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{
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await driver.InitializeAsync("{}", ct);
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var snapshot = await driver.ReadAsync(["__probe"], ct);
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var health = driver.GetHealth();
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await console.Output.WriteLineAsync($"Gateway: {Gateway}");
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await console.Output.WriteLineAsync($"Family: {Family}");
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await console.Output.WriteLineAsync($"Health: {health.State}");
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if (health.LastError is { } err)
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await console.Output.WriteLineAsync($"Last error: {err}");
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await console.Output.WriteLineAsync();
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await console.Output.WriteLineAsync(SnapshotFormatter.Format(TagPath, snapshot[0]));
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});
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}
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finally
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{
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await driver.ShutdownAsync(CancellationToken.None);
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// Flush Serilog before process exit so buffered log output emitted during
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// driver shutdown is not lost.
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FlushLogging();
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}
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}
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}
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