Manual CP 342–5 / CP 342–5 FOC79000–G8976–C146/01 7Module Replacement without PGThe CP supports the option of storing the CP configuration data on the CPU. If youuse this option, you can replace a module without having to download theconfiguration data from the programming device.The configuration data are then stored in the load memory of the CPU. Thenon-volatile storage of the configuration data on the CPU is guaranteed by batterybackup or by using an EPROM module card.ConfigurationFor configuration, you require STEP 7, version V5.1 or higher; for FDL connectionsand diagnostic functions, you require the NCM S7 for PROFIBUS optional packagesupplied with STEP 7.NoteIf you modify the bus parameters in the configuration data, you can only downloadthe configuration data to the CP via MPI!