Siemens 6AG1511-1FK01-2AB0 SIPLUS S7-1500 CPU 1511F-1 PN -25 ... +60 Degree C STARTUP -20 Degree C with conformal coating BasedOn: 6ES7511-1FK01-0AB0 . Central processing unit with working memory 225 KB for Program and 1 MB for Data, 1. Interface: PROFINE