Siemens 6ES7516-3FN00-0AB0 CPU Module

Siemens SIMATIC S7-1500F CPU 1516F-3 PN/DP, part number 6ES7516-3FN00-0AB0, is a failsafe central processing unit for high-availability automation systems. It provides 1.5 MB of program memory and 5 MB of data memory for safety-oriented control logic and data handling, and supports three network interfaces: PROFINET IRT with an integrated 2-port switch for high-speed real-time communication, PROFINET RT, and PROFIBUS for flexible plant connectivity. The unit runs on a 24 V DC supply (19.2–28.8 V) with reverse polarity protection, and includes a built-in operator display (6.1 cm diagonal) with six keys and a mode switch for on-device diagnostics. Firmware is V1.8 FS01, with STEP 7 / TIA Portal engineering support integrated from version V13 SP1 Update 4, enabling seamless programming and configuration within Siemens’ automation ecosystem. Clock-synchronous operation with a minimum OB cycle of 375 µs supports deterministic safety tasks, and the CPU is part of the S7-1500F family, offering safe integration with standard S7-1500 I/O and safety modules in a single compact module.