Siemens SIMATIC PLC 6AG1317-2EK14-2AY0 SIPLUS S7-300 CPU317-2PN/DP    -25 ... +70 DEGREES C    CONFORMITY WITH    EN50155 T1 CAT 1 CL A/B    WITH CONFORMAL COATING    BASED ON 6ES7317-2EK14-0AB0    .    CENTRAL PROCESSING UNIT WITH    1 MB WORKING MEMORY,    1. INTERFACE MPI/DP 12MBIT/S,    2. INTERFACE ETHERNET PROFINET,    WITH 2 PORT SWITCH,    MICRO MEMORY CARD NECESSARY 6AG13172EK142AY0