If you are running PCS7 v7.1 SP1 today, your plant floor is almost certainly filled with S7-400 series hardware. Supported CPUs include:
Unlike standard PLC systems, PCS7 is built on a "Totally Integrated Automation" (TIA) concept. Version 7.1 SP1 refined this by focusing on high availability, scalability, and seamless engineering workflows. It integrated the power of the with an advanced Operator Station (OS) based on WinCC, all managed under the SIMATIC Manager umbrella. Key Features and Enhancements in SP1 Simatic PCS7 v7.1 SP1