Is it possible to refresh an SAP screen automatically once every minute? We need this in production monitoring, where the status of all machines is displayed on a screen. The display needs to be renewed every minute.

You can use the "View" command to put a hidden HTML page on the screen, using large coordinates, e.g. 

View (400,0)  (410,80) "refresh.html"

In the page "refresh.html" you use JavaScript to activate the "Enter" key automatically every minute:

<script language=javascript>


 function refresh()
 setTimeout("refresh();", 60000);