The following compact CPUs are available:

• CPU 312C, the compact CPU with integrated digital inputs/outputs and integrated counting function
• CPU 313C, the compact CPU with integrated digital and analog inputs and outputs
• CPU 313C-2 PtP, the compact CPU with integrated digital inputs/outputs, second serial port and integrated counting function
• CPU 313C-2 DP, the compact CPU with integrated digital inputs/outputs, PROFIBUS-DP port and integrated counting function
• CPU 314C-2 PtP, the compact CPU with integrated digital and analog inputs/outputs, second serial port and integrated counting and positioning functions
• CPU 314C-2 DP, the compact CPU with integrated digital and analog inputs/outputs, PROFIBUS-DP port and integrated counting and positioning functions
• CPU 314C-2 PN/DP, the compact CPU with integrated digital and analog inputs/outputs and the integrated counting and positioning functions; with the option of a distributed topology via PROFIBUS DP and PROFINET IO; can be implemented as distributed intelligence in Component Based Automation (CBA) on PROFINET