public override void writeDouble(string var, double value)
 {
     try
     {
         var reg = ModbusClient.ConvertDoubleToRegisters(value);
         this.client.WriteMultipleRegisters(int.Parse(var), reg); //Read 10 Holding Registers from Server, starting with Address 1
     }
     catch (Exception ex)
     {
         this.client.Disconnect();
         throw ex;
     }
 }