SIMATIC IPC477D, IPC477D PRO
Operating Instructions, 11/2016, A5E31347228-AF
149
Maintaining and servicing your device
7
7.1
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:
Hard disk drive
3 years
CMOS backup battery
5 years
SSD / CFast card
Depends on the type of use
1
1
The interval for replacement depends greatly on the type of use. A specific interval cannot be
given.
All drives are monitored with the software tools DiagBase or DiagMonitor on the basis of
their SMART status. As soon the SMART status of the HDD or SSD switches to "Not OK", a
message is sent in DiagBase or DiagMonitor, or when you start up the PC. You should then
back up your data and replace the drive.