92 lines
4.0 KiB
C#
92 lines
4.0 KiB
C#
using Shouldly;
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using Xunit;
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namespace ZB.MOM.WW.OtOpcUa.Driver.Modbus.IntegrationTests.DL205;
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/// <summary>
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/// Verifies the DL205/DL260 V-memory octal addressing quirk end-to-end: use
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/// <see cref="DirectLogicAddress.UserVMemoryToPdu"/> to translate <c>V2000</c> octal into
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/// the Modbus PDU address actually dispatched, then read the marker the dl205.json profile
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/// placed at that address. HR[0x0400] = 0x2000 proves the translation was performed
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/// correctly — a naïve caller treating "V2000" as decimal 2000 would read HR[2000] (which
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/// the profile leaves at 0) and miss the marker entirely.
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/// </summary>
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[Collection(ModbusSimulatorCollection.Name)]
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[Trait("Category", "Integration")]
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[Trait("Device", "DL205")]
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public sealed class DL205VMemoryQuirkTests(ModbusSimulatorFixture sim)
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{
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[Fact]
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public async Task DL205_V2000_user_memory_resolves_to_PDU_0x0400_marker()
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{
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if (sim.SkipReason is not null) Assert.Skip(sim.SkipReason);
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if (!string.Equals(Environment.GetEnvironmentVariable("MODBUS_SIM_PROFILE"), "dl205",
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StringComparison.OrdinalIgnoreCase))
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{
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Assert.Skip("MODBUS_SIM_PROFILE != dl205 — skipping (standard profile does not seed V-memory markers).");
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}
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var pdu = DirectLogicAddress.UserVMemoryToPdu("V2000");
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pdu.ShouldBe((ushort)0x0400);
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var options = new ModbusDriverOptions
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{
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Host = sim.Host,
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Port = sim.Port,
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UnitId = 1,
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Timeout = TimeSpan.FromSeconds(2),
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Tags =
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[
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new ModbusTagDefinition("DL205_V2000",
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ModbusRegion.HoldingRegisters, Address: pdu,
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DataType: ModbusDataType.UInt16, Writable: false),
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],
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Probe = new ModbusProbeOptions { Enabled = false },
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};
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await using var driver = new ModbusDriver(options, driverInstanceId: "dl205-vmem");
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await driver.InitializeAsync("{}", TestContext.Current.CancellationToken);
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var results = await driver.ReadAsync(["DL205_V2000"], TestContext.Current.CancellationToken);
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results[0].StatusCode.ShouldBe(0u);
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results[0].Value.ShouldBe((ushort)0x2000, "dl205.json seeds HR[0x0400] with marker 0x2000 (= V2000 value)");
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}
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[Fact]
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public async Task DL205_V40400_system_memory_resolves_to_PDU_0x2100_marker()
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{
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if (sim.SkipReason is not null) Assert.Skip(sim.SkipReason);
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if (!string.Equals(Environment.GetEnvironmentVariable("MODBUS_SIM_PROFILE"), "dl205",
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StringComparison.OrdinalIgnoreCase))
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{
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Assert.Skip("MODBUS_SIM_PROFILE != dl205 — skipping.");
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}
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// V40400 is system memory on DL260 / H2-ECOM100 absolute mode; it does NOT follow the
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// simple octal-to-decimal formula (40400 octal = 16640 decimal, which would read HR[0x4100]).
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// The CPU places the system bank at PDU 0x2100 instead. Proving the helper routes there.
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var pdu = DirectLogicAddress.SystemVMemoryToPdu(0);
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pdu.ShouldBe((ushort)0x2100);
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var options = new ModbusDriverOptions
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{
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Host = sim.Host,
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Port = sim.Port,
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UnitId = 1,
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Timeout = TimeSpan.FromSeconds(2),
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Tags =
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[
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new ModbusTagDefinition("DL205_V40400",
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ModbusRegion.HoldingRegisters, Address: pdu,
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DataType: ModbusDataType.UInt16, Writable: false),
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],
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Probe = new ModbusProbeOptions { Enabled = false },
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};
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await using var driver = new ModbusDriver(options, driverInstanceId: "dl205-sysv");
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await driver.InitializeAsync("{}", TestContext.Current.CancellationToken);
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var results = await driver.ReadAsync(["DL205_V40400"], TestContext.Current.CancellationToken);
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results[0].StatusCode.ShouldBe(0u);
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results[0].Value.ShouldBe((ushort)0x4040, "dl205.json seeds HR[0x2100] with marker 0x4040 (= V40400 value)");
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}
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}
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