The TP177A can be connected to the Simatic S7-200/-300/-400 PLC's with a standard MPI or Profibus cable. Drivers for connecting the OP77B to additional PLC's are available; the necessary interfaces are already onboard.,In addition the TP177B and OP177B can use standard multimedia cards to expand the memory available for recipe data and project backups. The TP177B and OP177B use the Windows CE operating system and feature a USB interface for the connecting of a printer or downloading a project.,The colour variants feature an integral Profinet I/O interface
