Components

Three components make up the PL/B Web Server suite:

1.   The PL/B Web Application Engine is installed and configured on the host server system. The host server may be either Windows or Linux based. Application code (programs) and data files might also be on this server. The PL/B Web Server provides web services that allow socket communicates with browser clients. In addition, the server has PL/B runtime services that execute the PL/B programs.

2.   The PL/B Web clients are either a standard web browser or a Sunbelt Web App that provides the user interface for the PL/B programs.

3.   The client and host communicate via TCP/IP connections using the HTTP protocol.

The PL/B programs are executed by PLBWEBSRV.EXE at the host server system. HTML5, JavaScript, and CSS classes are automatically downloaded to the browser clients. As the programs execute at the host server, the server dynamically generates HTML5, JavaScript, and CSS classes that interface with the browser clients.