A standard CPU is available:

• S7-1500 Software Controller CPU 1507S
  for implementing the function of a S7-1500 Controller as software on a SIMATIC IPC with Windows.
  The CPU 1507S is optimized for PC-based control tasks with the IPC427D Microbox PC and IPC477D Panel PC. In addition, the CPU 1507S supports the IPC227E, IPC627D, and IPC827D Box PCs, the IPC277E and IPC677D Panel PCs, and the IPC647D and IPC847D Rack PCs.