diagram_system_no_pePublished June 14, 2017 at dimensions 656 × 575 in The PROFIenergy Profile. Next → https://profinetuniversity.com/wp-content/uploads/2017/06/diagram_system_no_pe.png https://profinetuniversity.com/wp-content/uploads/2017/06/diagram_system_with_pe.png https://profinetuniversity.com/wp-content/uploads/2016/05/PROFIenergy_sm.png The old way to save power in an automation system – create application-specific interfaces for each machine.