Description

The Siemens S7-1500 CPU 1516F-3 PN/DP (catalog number 6ES7516-3FN02-0AB0) is a fail-safe high-performance PLC designed for safety-critical applications that also demand extensive logic, communication, and real-time capabilities. Combining standard and safety control within one unified processor, this CPU supports applications up to SIL 3 (IEC 62061) and PL e (ISO 13849-1), meeting stringent safety standards required in sectors such as automotive, process, metals, and machinery manufacturing. Equipped with 1 MB of work memory—300 KB for the user program and 700 KB for data—this controller provides the capacity needed for handling large, modular automation projects and extensive diagnostics. The unit features three integrated communication interfaces: two PROFINET ports and one PROFIBUS DP interface, allowing flexible integration of both Ethernet and legacy fieldbus-based devices in a single architecture. The fail-safe functionality enables safety logic (e.g., emergency stop, guard door monitoring) to run in parallel with standard logic, programmed via TIA Portal using STEP 7 Safety Advanced. The CPU 1516F-3 PN/DP supports full modular expansion with all S7-1500-compatible modules and provides advanced diagnostics, real-time trace analysis, and a web server for remote monitoring. Its fanless, ruggedized design is built for 24/7 operation in industrial environments. This CPU is a powerful, integrated safety solution for complex applications requiring high reliability, modularity, and advanced communication.