Installing updates and service packs   
3.3 Checking plant status 
  Compendium Part D - Operation and Maintenance (V9.0) 
24  Operating Manual, 02/2018, A5E43228948-AA 
If packages are loaded on the OS client, a green, yellow, or red button appears in the area 
overview for the status of the connected server. You can use this display to check the status 
of the connected OS servers. If you click on the button, a window opens in the work space in 
which all connected servers are listed.