Siemens PC 670 manual Monitoring Functions, Overview, Signals on the front interface

Hardware Information Release 04/02

7.4Monitoring Functions

The LEDs described in the following sections are only available on specific versions of the device. The basic configuration of the computing unit does not have any LEDs. The hardware signals are described in Section 7.5.2.

7.4.1Overview

Function

The following individual functions are implemented:

Stemperature monitoring and indication of overheating and underheating

Swatchdog

Smonitoring the processor fan

Messages can be passed by the monitor modules to applications.

The program SOM (Safecard On Motherboard) as well as drivers for Windows are available on the units for this. These tools can be used to display the status and assign parameters to limit values.

You will find a driver description of the SOM program for each specific operating system on the CD Documentation and Drivers in the directory \PC670.

7.4.2Signals on the front interface

The meaning of the indicators is as follows:

LED	OFF	GREEN	RED
Run	Watchdog not	Watchdog active	Watchdog executed
	active
Temp	System turned off	Inside temperature	Inside temperature outside the per-
		normal	missible range.

7-6 Panel PC 670 Computing Unit, Equipment Manual