SIPLUS S7-1500 CPU 1515F-2 PN rail based on 6ES7515-2FM02-0AB0 with conformal coating. -40 +70 C. OT4 with ST1/2 (+85 C for 10 minutes). heat sink. no PS usable. central processing unit with work memory 750 KB for program and 3 MB for data. 1st interface PROFINET IRT with 2-port switch. 2nd interface PROFINET RT. 30 ns bit performance. SIMATIC Memory Card required