SIMATIC S7-1500 Compact CPU CPU 1511C-1PN, central processing unit with working memory 175 KB for program and 1 MB for data, 16 digital inputs, 16 digital outputs, 5 analog inputs, 2 analog outputs, 6 high speed counters, 4 high speed outputs for PTO/PWM/frequency output 1. interface: PROFINET IRT with 2 port switch, 60 NS bit-performance, incl. front connector push-in, SIMATIC memory card necessary.

SIMATIC S7-1500 compact CPU CPU 1511C-1 PN, central processing unit with work memory 300 KB for program and 1.5 MB for data, 16 digital inputs, 16 digital outputs, 5 analog inputs, 2 analog outputs, 6 high-speed counters, 4 high-speed outputs for PTO/PWM/frequency output, 1st interface: PROFINET IRT with 2-port switch, 25 ns bit performance, including push-in front connector, SIMATIC Memory Card required.