Cannot open TCPIP object in R2010 and 2011a (but is working in 2009)

Hi,

I am currently trying to interface with an external device using a TCPIP object although I seem to be unable to open the object in matlab 2010b as well as 2011a, where as it works fine in 2009a. The device's server is residing on the same pc as matlab and its port can unfotunately not be modified.

Bellow are the steps that I followed as well as the results:

R2010b

t= tcpip('127.0.0.1', 8001)

t = 

    tcpip

    Properties:
      remoteHost: '127.0.0.1'
      remotePort: 8001
            Type: 'tcpip'
      Terminator: '\r\n'
          Status: 'connected'

    Methods, Superclasses

>> fopen(t)

ans =

       ''

>> t

t = 

    tcpip

    Properties:
      remoteHost: '127.0.0.1'
      remotePort: 8001
            Type: 'tcpip'
      Terminator: '\r\n'
          Status: 'connected'

    Methods, Superclasses

****************************************** R2009a t=tcpip('127.0.0.1',8001)

     TCPIP Object : TCPIP-127.0.0.1

     Communication Settings 
        RemotePort:         8001
        RemoteHost:         127.0.0.1
        Terminator:         'LF'

     Communication State 
        Status:             closed
        RecordStatus:       off

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

>> fopen(t)
>> t

     TCPIP Object : TCPIP-127.0.0.1

     Communication Settings 
        RemotePort:         8001
        RemoteHost:         127.0.0.1
        Terminator:         'LF'

     Communication State 
        Status:             open
        RecordStatus:       off

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

Any suggestions would be helpful.

Thanks

[Emil]

Hi guys,

I have just figured out the issue; the solution was related to the path of the TCPIP constructor wich is pointing in the wrong directory in 2010/2011 but not in 2009.

Thanks,

Answer 1

[Walter Roberson]

I doubt it will solve the problem, but try setting the terminator to 'LF' in the original tcpip() call.