Siemens 6AG1511-1AK01-2AB0 SIPLUS S7-1500 CPU 1511-1 PN -40 ... +60 °C STARTUP -20 °C WITH CONFORMAL COATING BASED ON 6ES7511-1AK01-0AB0 . CENTRAL PROCESSING UNIT WITH WORKING MEMORY 150 KB FOR PROGRAM AND 1 MB FOR DATA, 1. INTERFACE: PROFINET IRT WITH 2