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Implemented Device Identification (0x2B / 43) for TCP

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This commit is contained in:
Andreas Müller
2024-03-09 21:31:33 +01:00
parent 7a3c7625a7
commit 24f7cc74a7
9 changed files with 596 additions and 37 deletions
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111
AMWD.Protocols.Modbus.Tests/Common/Protocols/TcpProtocolTest.cs
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@@ -435,6 +435,115 @@ namespace AMWD.Protocols.Modbus.Tests.Common.Protocols
#endregion Read Input Registers
#region Read Device Identification
[DataTestMethod]
[DataRow(ModbusDeviceIdentificationCategory.Basic)]
[DataRow(ModbusDeviceIdentificationCategory.Regular)]
[DataRow(ModbusDeviceIdentificationCategory.Extended)]
[DataRow(ModbusDeviceIdentificationCategory.Individual)]
public void ShouldSerializeReadDeviceIdentification(ModbusDeviceIdentificationCategory category)
{
// Arrange
var protocol = new TcpProtocol();
// Act
var bytes = protocol.SerializeReadDeviceIdentification(UNIT_ID, category, ModbusDeviceIdentificationObject.ProductCode);
// Assert
Assert.IsNotNull(bytes);
Assert.AreEqual(11, bytes.Count);
// Transaction id
Assert.AreEqual(0x00, bytes[0]);
Assert.AreEqual(0x01, bytes[1]);
// Protocol identifier
Assert.AreEqual(0x00, bytes[2]);
Assert.AreEqual(0x00, bytes[3]);
// Following bytes
Assert.AreEqual(0x00, bytes[4]);
Assert.AreEqual(0x05, bytes[5]);
// Unit id
Assert.AreEqual(UNIT_ID, bytes[6]);
// Function code
Assert.AreEqual(0x2B, bytes[7]);
// MEI Type
Assert.AreEqual(0x0E, bytes[8]);
// Category
Assert.AreEqual((byte)category, bytes[9]);
// Object Id
Assert.AreEqual((byte)ModbusDeviceIdentificationObject.ProductCode, bytes[10]);
}
[TestMethod]
[ExpectedException(typeof(ArgumentOutOfRangeException))]
public void ShouldTrhowOutOfRangeExceptionOnSerializeReadDeviceIdentification()
{
// Arrange
var protocol = new TcpProtocol();
// Act
protocol.SerializeReadDeviceIdentification(UNIT_ID, (ModbusDeviceIdentificationCategory)10, ModbusDeviceIdentificationObject.ProductCode);
// Assert - ArgumentOutOfRangeException
}
[DataTestMethod]
[DataRow(false)]
[DataRow(true)]
public void ShouldDeserializeReadDeviceIdentification(bool moreAndIndividual)
{
// Arrange
byte[] response = [0x00, 0x01, 0x00, 0x00, 0x00, 0x0D, 0x2A, 0x2B, 0x0E, 0x02, (byte)(moreAndIndividual ? 0x82 : 0x02), (byte)(moreAndIndividual ? 0xFF : 0x00), (byte)(moreAndIndividual ? 0x05 : 0x00), 0x01, 0x04, 0x02, 0x41, 0x4D];
var protocol = new TcpProtocol();
// Act
var result = protocol.DeserializeReadDeviceIdentification(response);
// Assert
Assert.IsNotNull(result);
Assert.AreEqual(moreAndIndividual, result.AllowsIndividualAccess);
Assert.AreEqual(moreAndIndividual, result.MoreRequestsNeeded);
Assert.AreEqual(moreAndIndividual ? 0x05 : 0x00, result.NextObjectIdToRequest);
Assert.AreEqual(1, result.Objects.Count);
Assert.AreEqual(4, result.Objects.First().Key);
CollectionAssert.AreEqual("AM"u8.ToArray(), result.Objects.First().Value);
}
[TestMethod]
[ExpectedException(typeof(ModbusException))]
public void ShouldThrowExceptionOnDeserializeReadDeviceIdentificationForMeiType()
{
// Arrange
byte[] response = [0x00, 0x01, 0x00, 0x00, 0x00, 0x0D, 0x2A, 0x2B, 0x0D];
var protocol = new TcpProtocol();
// Act
protocol.DeserializeReadDeviceIdentification(response);
}
[TestMethod]
[ExpectedException(typeof(ModbusException))]
public void ShouldThrowExceptionOnDeserializeReadDeviceIdentificationForCategory()
{
// Arrange
byte[] response = [0x00, 0x01, 0x00, 0x00, 0x00, 0x0D, 0x2A, 0x2B, 0x0E, 0x08];
var protocol = new TcpProtocol();
// Act
protocol.DeserializeReadDeviceIdentification(response);
}
#endregion Read Device Identification
#region Write Single Coil
[TestMethod]
@@ -1091,7 +1200,7 @@ namespace AMWD.Protocols.Modbus.Tests.Common.Protocols
var protocol = new TcpProtocol();
// Act
var result = protocol.Name;
string result = protocol.Name;
// Assert
Assert.AreEqual("TCP", result);