Service and maintenance
11.8 Removing and installing hardware components
SIMATIC HMI IPC677C
138 Operating Instructions, 04/2013, A5E02722710-04
● Always disconnect the power connector before you open the device.
● Install only system expansions which are designed for this computer. The installation of
other expansions can damage the system and violate the radio-interference suppression
regulations. Contact Technical Support or your local sales department to find out which
system expansions are suitable for installation.
If you install or exchange system expansions and damage your device, the warranty
becomes void.
Note
Observe the ESD instructions (Page 260).
Disclaimer of liability
All technical data and approvals apply only to expansion units which are released by
SIEMENS.
Siemens disclaims any liability for impairment of functions caused by the use of third-party
devices or components.
Tools
You can perform all installation tasks on the device using Torx T6, T10, T15 and T20
screwdrivers.
11.8.2 Preventive maintenance
To maintain high system availability, we recommend the preventative replacement of those
PC components that are subject to wear. The table below indicates the intervals for this
replacement.
Component Replacement interval:
HDD 3 years
Fan 3 years
CMOS backup battery 5 years
11.8.3 Replacing the Backup Battery
Note
Batteries are wearing parts and should be replaced every 5 years to ensure proper
functioning of the PC.
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