CIM Reference Guide

CIM_LogicalElement 43
CIM_Tachometer
The CIM_Tachometer class listed in Table 3-16 contains devices that measure revolutions per minute
(RPM) of a fan and return the value in RPMs.
CIM_WatchDog
The CIM_WatchDog class described in Table 3-17 represents a timer that is implemented in system
hardware. The watchdog feature allows the hardware to monitor the state of the operating system, BIOS,
or a software component installed on the system. If the monitored component fails to rearm the timer
before its expiration, the hardware assumes that the system is in a critical state and could reset the
system. This feature can also be used as an application watchdog timer for a mission-critical application.
In this case, the application would assume responsibility for rearming the timer before expiration.
Table 3-16. CIM_Tachometer Properties
Class Name: CIM_Tachometer
Parent Class: CIM_NumericSensor
Property Description Data Type
SensorType See Table 1-2, "Common Properties of Classes." uint16
UnitModifier See Table 1-2, "Common Properties of Classes." sint32
CurrentReading See Table 1-2, "Common Properties of Classes." sint32
IsLinear See Table 1-2, "Common Properties of Classes." Boolean
LowerThresholdNonCritical See Table 1-2, "Common Properties of Classes." sint32
UpperThresholdNonCritical See Table 1-2, "Common Properties of Classes." sint32
CIM_ ManagedSystemElement
CIM_LogicalElement
CIM_LogicalDevice
CIM_Sensor
CIM_NumericSensor
CIM_Tachometer
CIM_ ManagedSystemElement
CIM_LogicalElement
CIM_LogicalDevice
CIM_Watchdog