Operating instructions

Maintenance and service
12.3 Separating the control unit from the computer unit
SIMATIC Panel PC 677B
Operating Instructions, 05/2007, A5E01035609-01
101
– Screw mounting: Secure the control unit against falling out and unscrew it.
– Clamp fastening: Remove the clamps that secure the control unit to the mounting wall.



Figure 12-2 Other interfaces on the computer unit
(1) Display cable (for 17" and 19" touch panels 2 pieces)
(2) USB cable
(3) IO USB cable
Separating the device in an uninstalled state
As an alternative, dismount the device completely and separate the control unit and
computer unit from one another in an uninstalled state. So that the processing unit, which is
swung away from the control unit, does not bend the lugs (4), place a surface under the
processing unit.