Siemens SIMATIC PANEL PC 877 - Manual (Page 122)

Maintenance and service
12.4 Installing and removing hardware components
SIMATIC Panel PC 877
12-8
Operating instructions, Release 07/2006, A5E00877780-01
12.4.2 Open the device
Caution
Work on the open device may only be carried out by authorized and qualified personnel.
Within the warranty time, you are only allowed to install expansions for memory and
expansion card modules.
Caution
The device contains electronic components which may be destroyed by electrostatic charge.
You therefore need to take precautionary measures before you open the device. Refer to the
(ESD) directives for handling components which are sensitive to electrostatic charge.
Tools
You can perform all installation tasks on the device using Torx T6, Torx T10, and Torx T20
screwdrivers and a Philips screwdriver.
Preparation
Disconnect the device from mains.