The CPU 313C-2 DP is equipped with the following:

• Microprocessor;
  the processor achieves a processing time of 70 ns per binary instruction.
• Extensive memory;
  128 KB high-speed work memory (equals approx. 42 K instructions) for program components relevant to execution offers sufficient space for user programs;
  SIMATIC Micro Memory Cards (max. 8 MB) as load memory for the program also allow the project to be stored in the CPU (complete with symbols and comments).
• Flexible expansion capability;
  max. 31 modules, (4-tier configuration)
• MPI multi-point interface;
  The integrated MPI interface can establish as many as 8 connections simultaneously to S7-300/400 or to programming device, PC, OP. Among these connections, one is always reserved for programming devices and another for OPs. The MPI makes it possible to set up a simple network with a maximum of 16 CPUs via "global data communication".
• PROFIBUS DP interface:
  The CPU 313C-2 DP with PROFIBUS DP master/slave interface allows a distributed automation configuration offering high speed and ease of use. From the user's point of view, the distributed I/O is treated as central I/O (same configuring, addressing and programming).
• Integrated inputs/outputs;
  16 digital inputs (all for alarm processing) and 16 digital outputs are available on the CPU 313C-2 DP.