6AV6642-0BA01-1AX1 TP 177B Series Touch-Screen HMI Display – 5.7 in, LCD Display, 320 x 240pixels. 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.