How to resume Rx after disconnect and reconnect serial cable

[ddl]

I used a simple script below to receive data from a UART of a microcontroller (MCU)

while(1)
   try
	  private string Received_Data = device.MOTOR.readUntil(10)
	  Received_Data = parse(Received_Data, -1, ",")

		 P1_0.Addvalue(strToDouble(Received_Data[0]))
		 P1_1.AddValue(strToDouble(Received_Data[1]))

   catch()	
	  ? strLastError
	  delay(0.5)
   endcatch
   delay(0.05)
endwhile[/CODE]

My file.ctl will receive data from the MCU if I run the MCU first, then DAQfactory.

While DAQfactory is receiving data from the MCU, if I disconect or power down the MCU and then reconnect (or power up) the MCU. DAQFactory would not receiving data from the MCU unless I close DAQFactory and reopen it.

Is there any other method to resume receiving data without closing DAQFactory ?

[AzeoTech]

Is this a serial or Ethernet connection? What else are you doing to initialize your device?

[ddl]

This is serial connection (using serial to USB converter). I tried to stop and begin the sequence but it would not work

[ddl]

Also, I forgot to mention from previous reply. The MCU is power by the power from the USB. If I unplug the USB cable, it also power down the MCU

[AzeoTech]

With USB-Serial converters, unplugging the converter will kill the serial port within windows. To reestablish comms after reconnect you have to do:

device.myDevice.initComm()

Note, this is yet another reason I don't like USB-Serial converters and prefer Ethernet-Serial converters...