private void btnReadDiscreteInputs_Click(object sender, EventArgs e)
{
try
{
if (!modbusClient.Connected)
{
modbusClient.IPAddress = txtIpAddressInput.Text;
modbusClient.Port = int.Parse(txtPortInput.Text);
modbusClient.Connect();
}
bool[] serverResponse = modbusClient.ReadDiscreteInputs(int.Parse(txtStartingAddressInput.Text) - 1, int.Parse(txtNumberOfValuesInput.Text));
lsbAnswerFromServer.Items.Clear();
for (int i = 0; i < serverResponse.Length; i++)
{
lsbAnswerFromServer.Items.Add(serverResponse[i]);
}
}
catch (Exception exc)
{
MessageBox.Show(exc.Message, "Exception Reading values from Server", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
finally
{
modbusClient.Disconnect();
}
}
static void Main(string[] args)
{
Console.WriteLine("Hello World!");
EasyModbus.ModbusClient modbusClient = new EasyModbus.ModbusClient();
modbusClient.Connect("127.0.0.1", 502);
bool[] response = modbusClient.ReadDiscreteInputs(0, 2);
modbusClient.Disconnect();
Console.WriteLine("Value of Discrete Input #1: " + response[0].ToString());
Console.WriteLine("Value of Discrete Input #2: " + response[1].ToString());
Console.ReadKey();
}
public void GetValues(ConnectionProperties connectionProperties)
{
modbusClient = connectionProperties.modbusClient;
if (!modbusClient.Connected)
{
modbusClient.IPAddress = connectionProperties.ModbusTCPAddress;
modbusClient.Port = connectionProperties.Port;
modbusClient.Connect();
}
foreach (FunctionProperties functionProperty in connectionProperties.FunctionPropertiesList)
{
switch (functionProperty.FunctionCode)
{
case FunctionCode.ReadCoils:
functionProperty.values = modbusClient.ReadCoils(functionProperty.StartingAdress, functionProperty.Quantity);
break;
case FunctionCode.ReadDiscreteInputs:
functionProperty.values = modbusClient.ReadDiscreteInputs(functionProperty.StartingAdress, functionProperty.Quantity);
break;
case FunctionCode.ReadHoldingRegisters:
functionProperty.values = modbusClient.ReadHoldingRegisters(functionProperty.StartingAdress, functionProperty.Quantity);
break;
case FunctionCode.ReadInputRegisters:
functionProperty.values = modbusClient.ReadInputRegisters(functionProperty.StartingAdress, functionProperty.Quantity);
break;
default: break;
}
}
if (valuesChanged != null)
{
valuesChanged(this);
}
}
