Siemens SIMATIC Rack PC 840 V2 Getting Started

Description
2.1 Design
SIMATIC Rack PC 840 V2
Getting Started, Edition 04/2004, A5E00248069-02
2-5
2.1.4 Status displays
Status displays
Display Meaning LED Description
FAN CPU fan status (available only
with active SOM or DiagMonitor
software)
OFF
RED
-Fan speed OK
-CPU not started
(see error dialog)
-Fan speed too low
(see error dialog)
TEMP Internal temperature monitoring OFF
RED
-Internal temperature OK
-Internal temperature is critical
(see error dialog)
WATCHDOG WATCHDOG status display OFF
GREEN
RED
-WATCHDOG disabled
-WATCHDOG monitoring enabled
-Time-out (see error dialog)
ETHERNET ETHERNET status display OFF
GREEN
-not connected
-no data transfer
-data transfer
PROFIBUS/MPI Display of the communication
status to the S7 or PROFIBUS
OFF
GREEN
-not connected
-no data transfer
-data transfer
HARDDISK Display for hard disk access OFF
GREEN
-no access
-access
POWER PC status display OFF
YELLOW
GREEN
-disconnected from mains
-Standby (hibernate)
-PC in operation

Siemens SIMATIC Rack PC 840 V2 Specifications

General

Brand	Siemens
Model	SIMATIC Rack PC 840 V2
Category	Industrial PC
Language	English