Siemens CPU 1516F-3 PN/DP Failsafe PLC CPU for S7-1500 6AG1516-3FN00-2AB0

The Siemens 6AG1516-3FN00-2AB0 (CPU 1516F-3 PN/DP) is a high-performance failsafe central processing unit engineered for demanding industrial automation within the SIPLUS S7-1500 controller family. Based on the standard SIMATIC S7-1500 architecture, this SIPLUS extreme module features conformal coating to withstand harsh operating environments, including extreme temperature ranges, condensation, and chemical pollutants. It executes standard machine control tasks alongside safety-critical routines up to SIL 3 according to IEC 62061 and PL e according to ISO 13849-1 on a single central controller. Equipped with three communication interfaces, the unit provides a dual-port PROFINET IO IRT interface, an independent PROFINET basic interface, and a PROFIBUS DP connection for flexible fieldbus networking and distributed I/O integration. Operating on a nominal 24 V DC supply voltage, the module delivers fast instruction processing times, extensive work memory for program and data handling, and integrated system diagnostics. It is widely utilized in automotive manufacturing, continuous process plants, chemical facilities, and critical infrastructure where uninterrupted operation and functional safety are paramount.