public void TcpOverSocketTest()
{
var model = new ModbusModel();
var scanner = new ModbusTCPScanner();
using (var server = new TcpServerModel(model, scanner))
using (var master = ModbusMaster.TCP(IPAddress.Loopback.ToString(), server.Port))
{
//race condition avoided by access order
H.SharedSlaveTest(model, master);
}
}
public void TcpExceptionOverSocketTest()
{
var model = new ModbusModel();
var scanner = new ModbusTCPScanner();
using (var server = new TcpServerModel(model, scanner))
using (var master = ModbusMaster.TCP(IPAddress.Loopback.ToString(), server.Port))
{
var ex = Assert.Throws <ModbusException>(() => H.SharedExceptionTest(master));
Assert.AreEqual("Modbus exception 2", ex.Message);
Assert.AreEqual(2, ex.Code);
}
}
public void TcpOverIsolatedTest()
{
var model = new ModbusModel();
var scanner = new ModbusTCPScanner();
using (var server = new SerialModel(SlaveCOM, model, scanner))
using (var stream = new ModbusIsolatedStream(new SerialSettings(MasterCOM), 400))
{
var master = new ModbusMaster(stream, new ModbusTCPProtocol());
//race condition avoided by access order
H.SharedSlaveTest(model, master);
}
}
public void TcpExceptionOverIsolatedTest()
{
var model = new ModbusModel();
var scanner = new ModbusTCPScanner();
using (var server = new SerialModel(SlaveCOM, model, scanner))
using (var stream = new ModbusIsolatedStream(new SerialSettings(MasterCOM), 400))
{
var master = new ModbusMaster(stream, new ModbusTCPProtocol());
var ex = Assert.Throws <ModbusException>(() => H.SharedExceptionTest(master));
Assert.AreEqual("Modbus exception 2", ex.Message);
Assert.AreEqual(2, ex.Code);
}
}
public void TcpRetryAfterTimeoutTest()
{
var model = new ModbusModel();
var scanner = new ModbusTCPScanner();
using (var server = new TcpServerModel(model, scanner))
using (var master = ModbusMaster.TCP(IPAddress.Loopback.ToString(), server.Port, 50))
{
server.delay = 100;
Assert.Throws(typeof(Exception), () => master.WriteCoil(0, 0, false));
//client side delay needed to eat all server side delay otherwise
//the added socket stream discard on write will still throw tid mismatch
System.Threading.Thread.Sleep(100);
server.delay = 0;
master.WriteCoil(0, 0, false);
}
}
public static void Main(string[] args)
{
AppDomain.CurrentDomain.UnhandledException += UnhandledExceptionTrapper;
var cmdline = string.Join(" ", args);
switch (cmdline)
{
case "--list":
var names = SerialPort.GetPortNames();
foreach (var name in names)
{
Console.WriteLine(name);
}
Console.Out.Flush();
return;
}
var serial = new SerialPort();
Config.Parse(serial, cmdline);
serial.Open();
var thread = new Thread(() => { CheckLoop(serial); })
{
IsBackground = true
};
thread.Start();
var stream = new ModbusSerialStream(serial, 800);
var tcpScanner = new ModbusTCPScanner();
var rtuProtocol = new ModbusRTUProtocol();
var line = Console.ReadLine();
while (line != null)
{
var bytes = Convert.FromBase64String(line);
tcpScanner.Append(bytes, 0, bytes.Length);
var tcpRequestCommand = tcpScanner.Scan();
while (tcpRequestCommand != null)
{
var rtuRequestCommand = rtuProtocol.Wrap(tcpRequestCommand.Wrapped);
var rtuRequestBytes = new byte[rtuRequestCommand.RequestLength];
var rtuResponseBytes = new byte[rtuRequestCommand.ResponseLength];
rtuRequestCommand.FillRequest(rtuRequestBytes, 0);
stream.Write(rtuRequestBytes);
stream.Read(rtuResponseBytes);
var rtuResponse = rtuRequestCommand.ParseResponse(rtuResponseBytes, 0);
var tcpResponseBytes = new byte[tcpRequestCommand.ResponseLength];
tcpRequestCommand.FillResponse(tcpResponseBytes, 0, rtuResponse);
Console.WriteLine(Convert.ToBase64String(tcpResponseBytes, 0, tcpResponseBytes.Length));
Console.Out.Flush();
tcpRequestCommand = tcpScanner.Scan();
}
line = Console.ReadLine();
}
throw new Exception("Stdin closed unexpectedly");
}
