public static FtdUsbPort CreateAndOpenUsbPort(uint index)
{
FtdUsbPort port = new FtdUsbPort();
port.OpenByIndex(index);
return port;
}
public void OpenByIndex()
{
using (var port = new FtdUsbPort())
{
port.OpenByIndex(0);
Assert.IsTrue(port.IsOpen);
}
}
/// <summary>
/// Simple Modbus serial USB RTU master write multiple coils example.
/// </summary>
public static void ModbusSerialUsbRtuMasterWriteCoils()
{
using (FtdUsbPort port = new FtdUsbPort())
{
// configure usb port
port.BaudRate = 9600;
port.DataBits = 8;
port.Parity = FtdParity.None;
port.StopBits = FtdStopBits.One;
port.OpenByIndex(0);
// create modbus master
IModbusSerialMaster master = ModbusSerialMaster.CreateRtu(port);
byte slaveId = 1;
ushort startAddress = 1;
// write three coils
master.WriteMultipleCoils(slaveId, startAddress, new bool[] { true, false, true });
}
}
