/// <summary>
/// Simple Modbus serial ASCII slave example.
/// </summary>
public static void StartModbusSerialAsciiSlave()
{
using (SerialPort slavePort = new SerialPort("COM2"))
{
// configure serial port
slavePort.BaudRate = 9600;
slavePort.DataBits = 8;
slavePort.Parity = Parity.None;
slavePort.StopBits = StopBits.One;
slavePort.Open();
var factory = new ModbusFactory();
var adapter = new SerialPortAdapter(slavePort);
// create modbus slave
IModbusSlaveNetwork slaveNetwork = factory.CreateAsciiSlaveNetwork(adapter);
IModbusSlave slave1 = factory.CreateSlave(1);
IModbusSlave slave2 = factory.CreateSlave(2);
slaveNetwork.AddSlave(slave1);
slaveNetwork.AddSlave(slave2);
slaveNetwork.ListenAsync().GetAwaiter().GetResult();
}
}