Siemens SIMATIC Panel PC 870 Equipment Manual page 46

Servicing and Expanding the Computing Unit
Proceed as follows:
1. Open the housing as described in Section 4.1.
2. Loosen the fixing screw of the device for holding down the modules.
3. During assembly, ensure that the device for holding down the modules is
resting on the guide on the system housing.
Figure 4-9 Installing and removing the device for holding down the modules
Note
The slide elements are in the enclosed bag.
Aligning the device for holding down the modules:
To install the device for holding down the modules, perform the following steps.
1. Insert the slide element through the guide slit until it is resting firmly on the
module. The module must now be introduced into the notch.
Caution
Do not exert pressure on the module! Therefore, do not use force to press the
slide module onto the module.
4-12
Guide slits for slide
elements
Fixing screws for the device
holding down the modules
Panel PC 870 Computing Unit Equipment Manual
Edition 12/01