Creating a TCP Server

LabVIEW 2018 Help

Edition Date: March 2018
Part Number: 371361R-01
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Complete the following steps to create a TCP server using the TCP functions.

  1. Use the TCP Listen VI or the TCP Create Listener and TCP Wait On Listener functions to wait for a connection. You must specify the port and optionally a service name. This port or service name must be the same port or service name that the client attempts to access.
    • TCP Listen VI
    • TCP Create Listener Function
    • TCP Wait On Listener Function
  2. If a connection is established, use the TCP Write function to send a message to the client. The data must be in a form that the client can accept.
  3. Use the TCP Read function to read a message from the client.
  4. Use the TCP Close Connection function to close the connection.

Refer to the following VIs for examples of a TCP server:

  • labview\examples\Data Communication\Protocols\TCP\TCP Named Service\TCP Named Service.lvproj


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