For SPEED7 CPUs, 4MByte program/4MByte data
SPEED7 technology, SPEED-Bus, 4 MB work memory, Memory extension (max. 8 MB), PROFIBUS-DP master / PtP (switchable), CP 343 integrated, Also configurable via TIA-Portal
SPEED7 technology, SPEED-Bus, 4 MB work memory, Memory extension (max. 8 MB), PROFIBUS-DP master / PtP (switchable), PROFINET Controller integrated, Also configurable via TIA-Portal