Formerly Siemens PLM Software, our new name reflects the depth of our software offerings across a broad spectrum of industry domains. Siemens’ products and solutions constitute one element of such a concept. Operators or buildings managers can access buildings equipment, optimize settings and monitor performance quickly and easily â anytime and anywhere. The easiest migration forward is the Siemens S7 PLC, but it could also be upgraded to the controller of your choice. In addition, alarms are delivered to the users, allowing managers to take action right away and ensuring uninterrupted availability of all building systems. 68165 Mannheim. Take me to Support Center.