Using FM 452 This section contains information on the following topics:Terminal assignment of the front connector of FM 452 (S7-300, S7-400)Cam control functions (S7-300, S7-400)Configuring FM 452 (S7-300, S7-400)Using FM 452 from the user program (S7-300, S7-400)FM 452: Online & Diagnostics (S7-300, S7-400)