Operating instructions

Maintenance and service
12.3 Separating the control unit from the computer unit
SIMATIC Panel PC 677B
102 Operating Instructions, 05/2007, A5E01035609-01
Mounting operator control unit on computer unit
To mount the operator control unit on the computer unit, perform the steps in reverse:
Caution
When you swing the control unit and processing unit together, make sure that the flatband
cables are correctly folded together and do not get squished.
In order to do this, fold the flatband cables gently with specific spacing, as shown. The bend
dimensions are specified in the following table. The USB cable does not have to be folded
because it is stored as a loop in the computer unit.
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Figure 12-3 Example for folding of the cable
Position Bend dimension
A 4.5 cm
B 4 cm