The LEDs described in the following passages exist only for specific device
models. The basic model of the Box PC 840 has no LEDs. The assignment of the
front ports is described in Section 7.5.2.
The following individual functions are implemented:
S Temperature monitoring and excess/insufficient temperature indication
S 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
You will find a description of the drivers and the SOM program on the
Documentation and Drivers CD in the \Drivers.*\Safeonbo.ard directory.
Signals on the Front Interface
The meaning of the indicators is as follows:
SIMATIC Box PC 840 Manual
Watchdog not active
No hard disk activity
Hard disk activity
outside the permissible