The CODESYS software package includes a library with a function block for communicating with a web server via HTTP.
- When using http-GET, data is requested from a web server.
- When using http-POST or http-PUT, data is submitted from the controller to a web server.
- When using http-DELETE, data is deleted on a web server.
- When using http-HEAD, http-Header is requested from a web server.
The HTTP header of a request can be extended without any restrictions. The library is included as source code in the CODESYS package.