PG mode or configured mode - - ConsiderationsWhen commissioning and operating a SIMATIC PC station, distinctions must be madebetween the following areas of application. Depending on the application, select the mode ofthe communications module.● PG modeThis is the default mode for a programming device (PG/PC) and HMI station.● Configured modeThis mode should be selected for productive communication between applications in thePC station and the automation systems, for example SIMATIC S7400.