Product number (marketing number) 6ES7512-1DK01-0AB0 Product description SIMATIC DP, CPU 1512SP-1 PN for ET 200SP, central processing unit with main memory 200 KB for program and 1 MByte for data, 1st interface: PROFINET IRT with 3-port switch, 48 ns bit performance, Requires SIMATIC memory card, requires bus adapter for ports 1 and 2