SIEMENS SIMATIC S7-1500 Siemens 6ES7517-3AP00-0AB0 CPU 1517-3 PN/DP central processing unit with 2 MB program work memory, 8 MB data work memory, and integrated PROFINET and PROFIBUS communication interfaces. Designed as a central processing unit within a SIMATIC S7-1500 automation station, combining controller execution with multiple integrated industrial communication interfaces. Product Identity CPU 1517-3PN/DP SIMATIC S7-1500 central processing unit 24 V DC supply ·