public async Task ClientReadDeviceInformationBasicTest()
{
var expectedRequest = new byte[] { 0, 0, 0, 5, 13, 43, 14, 1, 0 };
var expectedResponse = new Dictionary <DeviceIDObject, string>
{
{ DeviceIDObject.VendorName, "AM.WD" },
{ DeviceIDObject.ProductCode, "Mini-Test" },
{ DeviceIDObject.MajorMinorRevision, "1.2.3.4" }
};
using (var server = new MiniTestServer())
{
server.RequestHandler = (request, clientIp) =>
{
CollectionAssert.AreEqual(expectedRequest, request.Skip(2).ToArray(), "Request is incorrect");
Console.WriteLine("Server sending response");
var bytes = new List <byte>();
bytes.AddRange(request.Take(2));
bytes.AddRange(new byte[] { 0, 0, 0, 0, 13, 43, 14, 1, 1, 0, 0, (byte)expectedResponse.Count });
var len = 8;
foreach (var kvp in expectedResponse)
{
var b = Encoding.ASCII.GetBytes(kvp.Value);
bytes.Add((byte)kvp.Key);
len++;
bytes.Add((byte)b.Length);
len++;
bytes.AddRange(b);
len += b.Length;
}
bytes[5] = (byte)len;
return(bytes.ToArray());
};
server.Start();
using (var client = new ModbusClient(IPAddress.Loopback, server.Port, new ConsoleLogger()))
{
await client.Connect();
Assert.IsTrue(client.IsConnected);
var deviceInfo = await client.ReadDeviceInformation(13, DeviceIDCategory.Basic);
Assert.IsTrue(string.IsNullOrWhiteSpace(server.LastError), server.LastError);
CollectionAssert.AreEqual(expectedResponse, deviceInfo, "Response is incorrect");
}
}
}
public async Task ClientReadDeviceInformationIndividualTest()
{
byte[] expectedRequest = new byte[] { 0, 0, 0, 5, 13, 43, 14, 4, (byte)DeviceIDObject.ModelName };
var expectedResponse = new Dictionary <DeviceIDObject, string>
{
{ DeviceIDObject.ModelName, "TestModel" }
};
using var server = new MiniTestServer
{
RequestHandler = (request, clientIp) =>
{
CollectionAssert.AreEqual(expectedRequest, request.Skip(2).ToArray(), "Request is incorrect");
Console.WriteLine("Server sending response");
var bytes = new List <byte>();
bytes.AddRange(request.Take(2));
bytes.AddRange(new byte[] { 0, 0, 0, 0, 13, 43, 14, 4, 2, 0, 0, (byte)expectedResponse.Count });
int len = 8;
foreach (var kvp in expectedResponse)
{
byte[] b = Encoding.ASCII.GetBytes(kvp.Value);
bytes.Add((byte)kvp.Key);
len++;
bytes.Add((byte)b.Length);
len++;
bytes.AddRange(b);
len += b.Length;
}
bytes[5] = (byte)len;
return(bytes.ToArray());
}
};
server.Start();
using var client = new ModbusClient(IPAddress.Loopback, server.Port, new ConsoleLogger());
await client.Connect();
Assert.IsTrue(client.IsConnected);
var deviceInfo = await client.ReadDeviceInformation(13, DeviceIDCategory.Individual, DeviceIDObject.ModelName);
Assert.IsTrue(string.IsNullOrWhiteSpace(server.LastError), server.LastError);
CollectionAssert.AreEqual(expectedResponse, deviceInfo, "Response is incorrect");
}