4-2
SIMATIC PC RI25/45, Technical Description
C79000-G7076-C808-01
4.1
Overview
The SafeCard is a short ISA module. It is used as a monitoring module in
SIMATIC PCs. It monitors the ambient conditions and the operating mode of
the PC, it indicates operating modes and fail-state characteristics and controls
the fans.
SafeCards fulfill the following individual functions:
–
Display status
–
Monitor temperature and indicate excess or insufficient temperature
–
Control fans
–
Watchdog
–
Serve as relay interface
–
Battery-back the optional RAM 64kB
SafeCard messages can be transferred to applications by means of the
SafeCard driver. For installing the SafeCard driver under various operating
systems see the ReadMe.TXT file in directory C:\SAFECARD.
Function
Monitoring Module