Siemens 6ES7517-3FP01-0AB0 SIMATIC S7-1500F CPU 1517F-3 PN/DP 3MB/8MB Fail-Safe Programmable Logic Controller

The Siemens 6ES7517-3FP01-0AB0 CPU 1517F-3 PN/DP is a rack-mounted fail-safe central processing unit in the SIMATIC S7-1500F family, running standard logic and F-blocks side by side. It holds 3 MB of program memory and 8 MB of data memory, and combines two PROFINET interfaces with a third PROFIBUS DP port on a single processor.

Technical Specifications

Selection Notes

F in the designation marks this as a fail-safe CPU, running SIL-rated safety logic through F-blocks alongside the standard program without a separate safety controller. The PN/DP interface set adds a PROFIBUS master to the two PROFINET ports, so pick this CPU over a PN-only F-CPU when the plant still has PROFIBUS-based drives or field devices to integrate. 3 MB of program memory, 8 MB of data memory and a 512-device connection limit put this CPU above the ET 200pro F-CPUs in scale, suited to rack-based S7-1500 stations with a large I/O count rather than field-mounted distributed stations.