TCP/IP Explorer

Open the TCP/IP Explorer app from either the Apps tab in the MATLAB toolstrip or the MATLAB command prompt.

Click Configure TCP/IP Connection.

Specify Address as the server host name www.mathworks.com and Port as the server port 80. You can leave the Connect Timeout as the default value of 10 and the Transfer Delay as the default value of Enabled. For more information about these parameters, see Configure Connection in TCP/IP Explorer.

Click Confirm Parameters to create a TCP/IP client connected to the specified TCP/IP server.

Alternatively, you can specify Address as the server IP address. In this example, the IP address for the host name is 144.212.130.17.

The TCP/IP Explorer tab opens in the app and your client TCP/IP Connection appears in the Device List.

View Connection properties and configure Communication properties from the Property Inspector. You can specify the Terminator, ByteOrder, and Timeout properties of the server before writing and reading data.

Open the TCP/IP Explorer app from either the Apps tab in the MATLAB toolstrip or the MATLAB command prompt.

Click Configure TCP/IP Connection.

Specify Address as the server address and Port as the server port to connect to the server. The values specified in this example are specific to this server and do not work on other machines. You can leave the Connect Timeout as the default value of 10. Click Confirm Parameters to create a TCP/IP client connected to the specified server.

Before writing or reading data, you can modify Communication properties from the Property Inspector. Ensure that these properties match the appropriate values for the server. For this example, the values shown already match the server configuration.

Some TCP/IP clients can accept string queries to send to the server and respond to them. In this example, the connected server has been programmed to receive and respond to customized string commands. The commands in this example do not work for other clients.

Send the Send Status? command from the client to the server. In the Write section, set the Data Format to ASCII-Terminated String. The Data Type changes to string since that is the only possible option. Specify the Data to Write as Send Status?. Click Write to write the data from the client to the server. For ASCII-terminated string write operations, the write terminator specified by the Terminator property is automatically appended to the data being written.

You can view the response to this command by reading from the client. In the Read section, set the Data Format to ASCII-Terminated String, which changes the Data Type to string. Read the data sent to the client from the server by clicking Read. Data is read until the first occurrence of a terminator.

View both the write and read operations in the Communication Log pane. The read operation shows the message Server Running on "172.XX.XXX.XXX" and port 3030.. You can select a row to export it as a variable to the workspace by following the steps in Export Data from Communication Log and Generate MATLAB Script.

The MATLAB Code Log pane shows the code for these operations. You can export this code as a MATLAB Live Script file by following the steps in Export Data from Communication Log and Generate MATLAB Script.

Open the TCP/IP Explorer app from either the Apps tab in the MATLAB toolstrip or the MATLAB command prompt.

Click Configure TCP/IP Connection.

Specify Address as the server address and Port as the server port to connect to the server. The values specified in this example are specific to this server and do not work on other machines. You can leave the Connect Timeout as the default value of 10. Click Confirm Parameters to create a TCP/IP client connected to the specified server.

Before writing or reading data, you can modify Communication properties from the Property Inspector. Ensure that these properties match the appropriate values for the server. For this example, the values shown already match the server configuration.

Some TCP/IP clients can accept string queries to send to the server and respond to them. In this example, the connected server has been programmed to receive and respond to customized string commands. The commands in this example do not work for other clients.

Send the Send Sine-Wave Data command from the client to the server. In the Write section, set the Data Format to ASCII-Terminated String. The Data Type changes to string since that is the only possible option. Specify the Data to Write as Send Sine-Wave Data. Click Write to write the data from the client to the server. For ASCII-terminated string write operations, the write terminator specified by the Terminator property is automatically appended to the data being written.

Send another command to the client. In the MATLAB command prompt, create a workspace variable for this command.

command = "Send Arbitrary Waveform";

Select Workspace Variable and select the command option. Click Write.

Before reading data from the client, you must specify the correct data format and type. In this example, the responses to the string commands are stored as binary data with double precision. In the Read section, set the Data Format to Binary, and the Data Type to double. The Values Available parameter is 1063. The first 63 values are the response to the Send Sine-Wave Data command and the remaining 1000 values are the response to the Send Arbitrary Waveform command.

Specify the Num Values to Read as 63. Read the first 63 values of the data from the client by clicking Read.

If you do not specify a value for the Num Values to Read parameter, you can read all the available values. Read the remaining 1000 values by clearing the Num Values to Read parameter and clicking Read.

View both the write and read operations in the Communication Log pane. You can select a row to plot it, view it in the Signal Analyzer app, or export it as a variable to the workspace. Select the data from the first read operation.

Click Plot in the Analyze section.

A new figure window with a plot of the data opens. You can modify the plot and figure from the command window.

Select the other response data and click Plot again. Another figure window with a plot of the data opens.

The MATLAB Code Log pane shows the code for these operations (except for plot creation). You can export this code as a MATLAB Live Script file by following the steps in Export Data from Communication Log and Generate MATLAB Script.

The Communication Log captures all the data that you have written to or read from the connected TCP/IP server.

Select a row of data.

Click Plot in the Analyze section.

A new figure window with a plot of the data opens. You can modify the plot and figure from the command window.

The Communication Log captures all the data that you have written to or read from the connected TCP/IP server.

Select a row of data.

Export this row of data to the workspace as the variable specified in Workspace Variable. The app provides a default variable name, but you can edit it. The data is saved in the workspace as its Data Type. Change the variable name, click Export, and select the Export Selected Row option.

You can also export the entirety of the Communication Log to the workspace as a timetable. Change the variable name, click Export, and select the Export Communication Log option.

Besides exporting data, you can also export the code from the MATLAB Code Log pane. This pane contains all tcpclient object creation, write, read, and property configuration operations that you do in the app.

Generate a MATLAB Live Script file and open it in the Live Editor by clicking Export and selecting the Generate MATLAB Script option.

After the Live Script file opens, you can modify the code to fit your needs and save the file.