/// <summary>
/// Sends the telecontrol command.
/// </summary>
public override void SendCommand(TeleCommand cmd)
{
base.SendCommand(cmd);
if ((deviceModel.GetCmd(cmd.CmdCode) ?? deviceModel.GetCmd(cmd.CmdNum)) is ModbusCmd modbusCmd)
{
// prepare Modbus command
if (modbusCmd.Multiple || modbusCmd.DataBlock == DataBlock.Custom)
{
modbusCmd.Value = 0;
if (cmd.CmdData == null)
{
modbusCmd.SetCmdData(cmd.CmdVal);
}
else
{
modbusCmd.Data = cmd.CmdData;
}
}
else
{
modbusCmd.Value = modbusCmd.DataBlock == DataBlock.HoldingRegisters
? (ushort)cmd.CmdVal
: (ushort)(cmd.CmdVal > 0 ? 1 : 0);
modbusCmd.SetCmdData(cmd.CmdVal);
}
modbusCmd.InitReqPDU();
modbusCmd.InitReqADU(deviceModel.Addr, transMode);
// send command to device
LastRequestOK = false;
int tryNum = 0;
while (RequestNeeded(ref tryNum))
{
if (modbusPoll.DoRequest(modbusCmd))
{
LastRequestOK = true;
}
FinishRequest();
tryNum++;
}
}
else
{
LastRequestOK = false;
Log.WriteLine(CommPhrases.InvalidCommand);
}
FinishCommand();
}