Why are Serial COM ports closed in Matlab and open on the PC

This is the following Statement i get from Matlab after pressing "Verbinden"

>> versuchsstand

   Serial Port Object : Serial-COM6

   Communication Settings 
      Port:               COM6
      BaudRate:           57600
      Terminator:         'LF'

   Communication State 
      Status:             closed
      RecordStatus:       off

   Read/Write State  
      TransferStatus:     idle
      BytesAvailable:     0
      ValuesReceived:     0
      ValuesSent:         0

   Serial Port Object : Serial-COM7

   Communication Settings 
      Port:               COM7
      BaudRate:           115200
      Terminator:         'LF'

   Communication State 
      Status:             closed
      RecordStatus:       off

   Read/Write State  
      TransferStatus:     idle
      BytesAvailable:     0
      ValuesReceived:     0
      ValuesSent:         8

How can i Change the Status from Closed to Open, so that i can communicate with the connected devices.

[Abhishek Dobhal]

Did anyone find out how to solve this issue?

Answer 1

[Walter Roberson]

You need to serial() to configure the settings for the com port, and then you need to fopen() the resulting object, after which you can do I/O with it.