/// <summary>
/// Create&Return a Rtu Master host;
/// </summary>
/// <returns></returns>
public override IModbusMaster CreateRtuMaster(string portName, int baudrate = 115200, int dataBits = 8, StopBits stopbits = StopBits.One, Parity parity = Parity.None)
{
port = new SerialPort
{
BaudRate = baudrate,
DataBits = 8,
Parity = parity,
StopBits = StopBits.One,
PortName = portName
};
port.Open();
Master = ModbusSerialMaster.CreateRtu(port);
return(Master);
}
public MeasureForm(int _devno, SerialPort _sp, TcpClient _tc, Sensor _ts)
{
InitializeComponent();
SettingButton.Click += SettingButton_Click;
ExecButton.Click += ExecButton_Click;
UpdateButton.Click += UpdateButton_Click;
CoilsButton.Click += CoilsButton_Click;
DescriteButton.Click += DescriteButton_Click;
UptimeButton.Click += UptimeButton_Click;
RawButton.Click += RawButton_Click;
CyclicPeriod.Minimum = 100m;
CyclicPeriod.Maximum = 10000m;
CyclicPeriod.Value = 1000m;
fs = null;
sw = null;
DataGridView dataGridView = dataGridView1;
dataGridView.AutoSize = true;
dataGridView.Anchor = (AnchorStyles.Top | AnchorStyles.Left);
dataGridView.RowHeadersVisible = false;
dataGridView.AllowUserToAddRows = false;
dataGridView.MultiSelect = false;
dataGridView.SelectionMode = DataGridViewSelectionMode.CellSelect;
dataGridView.ColumnCount = 2;
dataGridView.Columns[0].HeaderText = "Item";
dataGridView.Columns[0].SortMode = DataGridViewColumnSortMode.NotSortable;
dataGridView.Columns[1].HeaderText = "Value";
dataGridView.Columns[1].SortMode = DataGridViewColumnSortMode.NotSortable;
TargetSensor = _ts;
TargetSensor.SensorComponent(dataGridView);
devno = _devno;
if (_sp != null)
{
Tc = null;
Sp = _sp;
Sp.Open();
Master = ModbusSerialMaster.CreateRtu(_sp);
}
else
{
Sp = null;
Tc = _tc;
Master = ModbusIpMaster.CreateIp(Tc);
}
Master.Transport.ReadTimeout = 300;
dataGridView.CurrentCell = dataGridView[1, 0];
dataGridView.AllowUserToResizeRows = false;
}
private void buttonConnect_Click(object sender, EventArgs e)
{
serialPortModbus.PortName = comboBoxSerial.Text;
if (!serialPortModbus.IsOpen)
{
serialPortModbus.Open();
buttonConnect.Enabled = false;
buttonDisconnect.Enabled = true;
modbusMasterRTU = ModbusSerialMaster.CreateRtu(serialPortModbus);
timerGetData.Enabled = true;
}
else
{
MessageBox.Show("Failed To Open Port");
}
}
private IModbusSerialMaster GetMaster()
{
var port = ((KeyValuePair <string, SerialPort>)cbxSerialPort.SelectedItem).Value;
port.BaudRate = Convert.ToInt16(cbxComBaudRate.Text);
port.Parity = Parity.None;
port.DataBits = 8;
port.StopBits = StopBits.One;
if (!port.IsOpen)
{
port.Open();
}
IModbusSerialMaster master = ModbusSerialMaster.CreateRtu(port);
return(master);
}
public static int InitRs485(string PortName, int BaudRate = 9600)
{
if (serialPort == null)
{
return(-1);
}
//open port
if (!serialPort.IsOpen)
{
if (!PortName.ToUpper().Contains("COM") || BaudRate == 0)
{
return(-2);
}
try
{
serialPort.PortName = PortName;
serialPort.BaudRate = BaudRate;
serialPort.StopBits = StopBits.One;
serialPort.Parity = Parity.Even;
serialPort.Open();
}
catch (Exception ex)
{
//throw ex;
return(-1);
}
}
//create rtu
if (serialPort.IsOpen && (master == null || master.Transport == null))
{
try
{
master = ModbusSerialMaster.CreateRtu(serialPort);
master.Transport.ReadTimeout = 50;
master.Transport.WriteTimeout = 50;
master.Transport.Retries = 3;
master.Transport.WaitToRetryMilliseconds = 10;
}
catch (Exception ex)
{
return(-2);
//throw ex;
}
}
return(0);
}
/// <summary>
/// RTU master create connection to serial port
/// (<paramref name="serialPort"/>,<paramref name="slaveAddress"/>).
/// </summary>
/// <param name="serialPort">A serial port resource.</param>
/// <param name="slaveAddress">Address of device to read value from.</param>
public ModbusPortCommunication(string serialPortName = "COM13", byte slaveAddress = 1)
{
InitializeSerialPort(serialPortName);
master = ModbusSerialMaster.CreateRtu(serialPort);
// Number of times to retry sending message after encountering a failure
// such as an IOException, TimeoutException, or a corrupt message.
// Default Value is Retries = 3.
master.Transport.Retries = 0;
// Gets or sets the number of milliseconds before a timeout occurs
// when a read operation does not finis recommended value is ReadTimeout = 300).
master.Transport.ReadTimeout = 100;
this.slaveAddress = slaveAddress;
}
public void CreateRtu_UsbPortFactoryMethod()
{
MockRepository mocks = new MockRepository();
IStreamResource mockStreamResource = mocks.StrictMock <IStreamResource>();
Expect.Call(mockStreamResource.WriteTimeout).Return(0);
Expect.Call(mockStreamResource.InfiniteTimeout).Return(0);
mockStreamResource.WriteTimeout = Modbus.DefaultTimeout;
Expect.Call(mockStreamResource.ReadTimeout).Return(0);
Expect.Call(mockStreamResource.InfiniteTimeout).Return(0);
mockStreamResource.ReadTimeout = Modbus.DefaultTimeout;
mocks.ReplayAll();
var master = ModbusSerialMaster.CreateRtu(mockStreamResource);
mocks.VerifyAll();
}
