Siemens SIMATIC Rack PC 840 V2 Operating Instructions Manual page 46

Expansions and configuration
10.1 Open the device
Open the device
Steps for opening the device
1
2
3
4
10-2
Open the front panel door.
Remove the lid screw
(you can also remove the lid screw
without using a tool.)
Slide the lid back to the mechanical
stop (approx. 1 cm)
Lift up the lid and remove it
Operating Instructions, Edition 05/2006, A5E00248055-04
SIMATIC Rack PC 840 V2