Siemens 6ES7 314-6CH04-0AB0 SIMATIC S7-300 CPU 314C-2 DP Compact Controller with 1 x RS-485 Interface (MPI) and 1 x RS-485 Interface (PROFIBUS DP Master/Slave), 192 KBytes Memory for User Program and Data, (24) 24V DC Digital Inputs, Sink, (16) 24V DC Digital Outputs, 0.5A/each, (4) Analog Current/Voltage Inputs, (1) Analog RTD/Resistance Input, Pt100 or 0-600 Ohm, (2) Analog Current/Voltage Outputs, (4) Fast Counters (60 kHz), Integrated 24V DC Power Supply, required Front Connectors (2 x 40-Pin) and Micro Memory Card.