Siemens SIMATIC PC 670 Equipment Manual page 63

Release 04/02
Before opening the device
Note the following rules before opening the device:
S Before you disconnect the power supply cable, discharge the electrostatic
charge on your body. You can do this by briefly touching the mounting plate for
the interfaces on the left side of the device.
S Discharge the electrostatic charge from tools you are using.
S Wear a grounding strap when handling components.
S Leave components and component parts in their packaging until you are ready
to install them.
S Disconnect the device from its power supply before plugging in or removing any
components or component parts.
S Touch components and module only on their edges. Do not touch contact pins
or printed conductors.
Warning
!
Never operate the device with the cover open.
Tools
You can perform all necessary installation work on the computing unit with
screwdrivers of the type TORX T10 and TORX T8.
Panel PC 670 Computing Unit, Equipment Manual
Maintaining and Extending the Computing Unit
4-3