Instrument Control Toolbox

Creating a UDP Object

You create a UDP object with the udp function. udp does not require the name of the remote host as an input argument. However, if you are using the object to communicate with a specific instrument, you should specify the remote host and the port number. As described in Configuring Property Values, you can also configure property values during object creation.

For example, to create a UDP object associated with the remote host 127.0.0.1and the remote port 4012

• u = udp('127.0.0.1',4012);
  

The UDP object u now exists in the MATLAB workspace. You can display the class of u with the whos command.

• whos u
    Name      Size                   Bytes  Class
  
    u         1x1                      632  udp object
  
  Grand total is 12 elements using 632 bytes
  

Once the UDP object is created, the properties listed below are automatically assigned values. These general purpose properties provide descriptive information about the UDP object based on the object type, the remote host, and the remote port.

Table 6-2: UDP Descriptive Properties 

Property Name	Description
Name	Specify a descriptive name for the UDP object.
RemoteHost	Specify the remote host.
RemotePort	Specify the remote host port for the connection.
Type	Indicate the object type.

You can display the values of these properties for t with the get function.

• get(u,{'Name','RemoteHost','RemotePort','Type'})
  ans = 
      'UDP-127.0.0.1'    '127.0.0.1'    [4012]    'udp'
  

Example: Server Drops the Connection

The UDP Object Display