Instead of connecting the Display (FG),
connect the Shield to the Shell.
IMPORTANT:
The 5V output (Pin #6) on the Display is
the power for the Siemens AG's PROFIBUS connector. Do not use
it for other devices.
NOTE
The cable length have to be 10m or less.
Max length between the Display and
the "Accessory Box connected to Display".
Total cable length between accessory boxes have to be 1000m or
less.
