Hardware Information
7-5
SIMATIC Rack PC 840 Manual
A5E00104826-03
7.4
Monitoring Functions
7.4.1
Overview
Function
The following individual functions are implemented:
Temperature monitoring and excess/insufficient temperature indication
Watchdog
Fan monitoring
Messages from the monitoring modules can be transferred to applications.
The program SOM (Safecard On Motherboard) as well as drivers for Windows are
available on the units for this. The status can be displayed or limits parameterized
thereby.
You will find a description of the drivers and the SOM program on the
Documentation and Drivers
CD in the \Drivers.*\Safeonbo.ard directory.
7.4.2
Signals on the Front Interface
The meaning of the indicators is as follows:
LED
OFF
GREEN
RED
Watchdog
Watchdog not active
Watchdog active
Watchdog executed
Temp
Inside temperature
normal
Inside temperature out-
side the permissible ran-
ge.
FAN
CPU starts, fan speed is
normal
CPU does not start or fan
speed is too low.
The fan status is only displayed when SOM or SOL is enabled.
Summary of Contents for SIMATIC Box PC 840
Page 8: ...Preface viii SIMATIC Rack PC 840 Manual A5E00104826 03 ...
Page 179: ...B 1 SIMATIC Rack PC 840 Manual A5E00104826 03 Technical Specifications B ...
Page 208: ...Glossary Glossary 22 SIMATIC Rack PC 840 Manual A5E00104826 03 ...
Page 212: ...Index Index 4 SIMATIC Rack PC 840 Manual A5E00104826 03 ...