Siemens 6ES7515-2RN03-0AB0 SIMATIC S7-1500R CPU 1515R-2 PN 1MB/4.5MB Programmable Logic Controller

The Siemens 6ES7515-2RN03-0AB0 is a SIMATIC S7-1500R CPU 1515R-2 PN with 1 MB integrated program memory and 4.5 MB data memory, built for redundant automation. It runs stand-alone or in a system-redundant (S2) pair with bumpless PROFINET IO switchover, using two PROFINET interfaces: X1 with a 2-port switch and X2 as a single port.

Technical Specifications

Selection Notes

The R in CPU 1515R-2 PN marks it as a redundant CPU: it can run stand-alone like a standard 1515-2 PN or paired in S2 system redundancy, where PROFINET IO switches over between the two CPUs without an I/O dropout. Pick it over a non-R CPU when the process cannot tolerate a CPU fault causing a station-wide PROFINET interruption. The 1 MB program / 4.5 MB data split fits mid-size logic; if the application needs a larger retentive data area, a higher-memory R-CPU in the same family is the next step up. MRP ring support on the X1 interface lets the redundant pair also sit on a media-redundant ring without an external switch.

Applications

Process lines and continuous production where a PROFINET IO or CPU fault would otherwise stop the line, and applications already using PROFINET MRP ring topology that need CPU-level redundancy added without re-cabling.