Siemens 6ES7 315-2AG10-0AB0 SIMATIC S7-300 CPU 315-2 DP Standard Controller with 1 x RS-485 Interface (MPI) and 1 x RS-485 Interface (PROFIBUS DP Master/Slave), 128 Kbyte Memory for User Program and Data, No Integrated I/O, Integrated 24V DC Power Supply
