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CIM_Tachometer class

The CIM_Tachometer class exists for backward compatibility with earlier CIM schema definitions. With additions to the CIM_Sensor and CIM_NumericSensor classes in version 2.2, it is no longer necessary. A tachometer can be defined by setting the SensorType property, inherited from CIM_Sensor, to 5 ("Tachometer"). Other properties of this class are hard-coded to constant values that correspond to definitions in the sensor hierarchy.

Important  The DMTF (Distributed Management Task Force) CIM (Common Information Model) classes are the parent classes upon which WMI classes are built. WMI currently supports only the CIM 2.x version schemas.

The following syntax is simplified from Managed Object Format (MOF) code and includes all of its inherited properties. Properties are listed in alphabetic order, not MOF order.

Syntax

class CIM_Tachometer : CIM_NumericSensor
{
  sint32   Accuracy;
  uint16   Availability;
  string   Caption;
  uint32   ConfigManagerErrorCode;
  boolean  ConfigManagerUserConfig;
  string   CreationClassName;
  sint32   CurrentReading;
  string   Description;
  string   DeviceID;
  boolean  ErrorCleared;
  string   ErrorDescription;
  datetime InstallDate;
  boolean  IsLinear;
  uint32   LastErrorCode;
  sint32   LowerThresholdCritical;
  sint32   LowerThresholdFatal;
  sint32   LowerThresholdNonCritical;
  sint32   MaxReadable;
  sint32   MinReadable;
  string   Name;
  sint32   NominalReading;
  sint32   NormalMax;
  sint32   NormalMin;
  string   PNPDeviceID;
  uint16   PowerManagementCapabilities[];
  boolean  PowerManagementSupported;
  uint32   Resolution;
  string   Status;
  uint16   StatusInfo;
  string   SystemCreationClassName;
  string   SystemName;
  sint32   Tolerance;
  sint32   UpperThresholdCritical;
  sint32   UpperThresholdFatal;
  sint32   UpperThresholdNonCritical;
};

Members

The CIM_Tachometer class has these types of members:

Methods

The CIM_Tachometer class has these methods.

MethodDescription
Reset

Requests a reset of the logical device. Not implemented by WMI.

SetPowerState

Defines the desired power state for a logical device and when a device should be put into that state. Not implemented by WMI.

 

Properties

The CIM_Tachometer class has these properties.

Accuracy
Data type: sint32
Access type: Read-only

Accuracy of the sensor for the measured property. Its value is recorded as plus or minus hundredths of a percent. This property, and the Resolution and Tolerance properties, are used to calculate the actual value of the measured physical property. Accuracy can vary depending on whether the device is linear over its dynamic range. This property is inherited from CIM_NumericSensor.

Availability
Data type: uint16
Access type: Read-only

Availability and status of the device. Inherited from CIM_LogicalDevice.

ValueMeaning
1 (0x1)

Other

2 (0x2)

Unknown

3 (0x3)

Running or Full Power

4 (0x4)

Warning

5 (0x5)

In Test

6 (0x6)

Not Applicable

7 (0x7)

Power Off

8 (0x8)

Off Line

9 (0x9)

Off Duty

10 (0xA)

Degraded

11 (0xB)

Not Installed

12 (0xC)

Install Error

13 (0xD)

Power Save - Unknown

The device is known to be in a power save mode, but its exact status is unknown.

14 (0xE)

Power Save - Low Power Mode

The device is in a power save state but still functioning, and may exhibit degraded performance.

15 (0xF)

Power Save - Standby

The device is not functioning but could be brought to full power quickly.

16 (0x10)

Power Cycle

17 (0x11)

Power Save - Warning

The device is in a warning state, though also in a power save mode.

 

Caption
Data type: string
Access type: Read-only

Short textual description of the object. This property is inherited from CIM_ManagedSystemElement.

ConfigManagerErrorCode
Data type: uint32
Access type: Read-only

Win32 Configuration Manager error code.

ValueMeaning
0 (0x0)

Device is working properly.

1 (0x1)

Device is not configured correctly.

2 (0x2)

Windows cannot load the driver for this device.

3 (0x3)

Driver for this device might be corrupted, or the system may be low on memory or other resources.

4 (0x4)

Device is not working properly. One of its drivers or the registry might be corrupted.

5 (0x5)

Driver for the device requires a resource that Windows cannot manage.

6 (0x6)

Boot configuration for the device conflicts with other devices.

7 (0x7)

Cannot filter.

8 (0x8)

Driver loader for the device is missing.

9 (0x9)

Device is not working properly. The controlling firmware is incorrectly reporting the resources for the device.

10 (0xA)

Device cannot start.

11 (0xB)

Device failed.

12 (0xC)

Device cannot find enough free resources to use.

13 (0xD)

Windows cannot verify the device's resources.

14 (0xE)

Device cannot work properly until the computer is restarted.

15 (0xF)

Device is not working properly due to a possible re-enumeration problem.

16 (0x10)

Windows cannot identify all of the resources that the device uses.

17 (0x11)

Device is requesting an unknown resource type.

18 (0x12)

Device drivers must be reinstalled.

19 (0x13)

Failure using the VxD loader.

20 (0x14)

Registry might be corrupted.

21 (0x15)

System failure. If changing the device driver is ineffective, see the hardware documentation. Windows is removing the device.

22 (0x16)

Device is disabled.

23 (0x17)

System failure. If changing the device driver is ineffective, see the hardware documentation.

24 (0x18)

Device is not present, not working properly, or does not have all of its drivers installed.

25 (0x19)

Windows is still setting up the device.

26 (0x1A)

Windows is still setting up the device.

27 (0x1B)

Device does not have valid log configuration.

28 (0x1C)

Device drivers are not installed.

29 (0x1D)

Device is disabled. The device firmware did not provide the required resources.

30 (0x1E)

Device is using an IRQ resource that another device is using.

31 (0x1F)

Device is not working properly. Windows cannot load the required device drivers.

 

ConfigManagerUserConfig
Data type: boolean
Access type: Read-only

If TRUE, the device is using a user-defined configuration. This property is inherited from CIM_LogicalDevice.

CreationClassName
Data type: string
Access type: Read-only

Name of the class or subclass used in the creation of an instance. When used with other key properties of the class, this property allows all instances of the class and its subclasses to be uniquely identified. This property is inherited from CIM_LogicalDevice.

CurrentReading
Data type: sint32
Access type: Read-only

Current value indicated by the sensor. This property is inherited from CIM_NumericSensor.

Description
Data type: string
Access type: Read-only

Textual description of the object. This property is inherited from CIM_ManagedSystemElement.

DeviceID
Data type: string
Access type: Read-only

Address or other identifying information to uniquely name the logical device. This property is inherited from CIM_LogicalDevice.

ErrorCleared
Data type: boolean
Access type: Read-only

If TRUE, the error reported in the LastErrorCode property is now cleared. This property is inherited from CIM_LogicalDevice.

ErrorDescription
Data type: string
Access type: Read-only

Free-form string that supplies information about the error recorded in the LastErrorCode property and corrective actions to perform. This property is inherited from CIM_LogicalDevice.

InstallDate
Data type: datetime
Access type: Read-only

Date and time the object was installed. This property does not need a value to indicate that the object is installed. This property is inherited from CIM_ManagedSystemElement.

IsLinear
Data type: boolean
Access type: Read-only

If TRUE, the sensor is linear over its dynamic range. This property is inherited from CIM_NumericSensor.

LastErrorCode
Data type: uint32
Access type: Read-only

Last error code reported by the logical device. This property is inherited from CIM_LogicalDevice.

LowerThresholdCritical
Data type: sint32
Access type: Read-only

Threshold value that specifies the ranges (minimum and maximum values) for determining whether the sensor is operating under normal, non-critical, critical, or fatal conditions. If the CurrentReading property is between LowerThresholdCritical and LowerThresholdFatal, then the current state is critical. This property is inherited from CIM_NumericSensor.

LowerThresholdFatal
Data type: sint32
Access type: Read-only

Threshold value that specifies the ranges (minimum and maximum values) for determining whether the sensor is operating under normal, non-critical, critical, or fatal conditions. If the CurrentReading property is below LowerThresholdFatal, then the current state is fatal. This property is inherited from CIM_NumericSensor.

LowerThresholdNonCritical
Data type: sint32
Access type: Read-only

Threshold value that specifies the ranges (minimum and maximum values) for determining whether the sensor is operating under normal, non-critical, critical, or fatal conditions. If the CurrentReading property is between LowerThresholdNonCritical and UpperThresholdNonCritical, then the sensor is reporting a normal value. If the CurrentReading property is between LowerThresholdNonCritical and LowerThresholdCritical, then the current state is non-critical. This property is inherited from CIM_NumericSensor.

MaxReadable
Data type: sint32
Access type: Read-only

Largest value of the measured property that can be read by the numeric sensor. This property is inherited from CIM_NumericSensor.

MinReadable
Data type: sint32
Access type: Read-only

Smallest value of the measured property that can be read by the numeric sensor. This property is inherited from CIM_NumericSensor.

Name
Data type: string
Access type: Read-only

Label by which the object is known. When subclassed, this property can be overridden to be a key property. This property is inherited from CIM_ManagedSystemElement.

NominalReading
Data type: sint32
Access type: Read-only

Expected or normal value for the numeric sensor. This property is inherited from CIM_NumericSensor.

NormalMax
Data type: sint32
Access type: Read-only

Normal maximum range for the numeric sensor. This property is inherited from CIM_NumericSensor.

NormalMin
Data type: sint32
Access type: Read-only

Normal minimum range for the numeric sensor. This property is inherited from CIM_NumericSensor.

PNPDeviceID
Data type: string
Access type: Read-only

Win32 Plug and Play device identifier of the logical device. This property is inherited from CIM_LogicalDevice.

Example: "*PNP030b"

PowerManagementCapabilities
Data type: uint16 array
Access type: Read-only

Array of the specific power-related capabilities of a logical device. This property is inherited from CIM_LogicalDevice.

ValueMeaning
0 (0x0)

Unknown

1 (0x1)

Not Supported

2 (0x2)

Disabled

3 (0x3)

Enabled

The power management features are currently enabled but the exact feature set is unknown or the information is unavailable.

4 (0x4)

Power Saving Modes Entered Automatically

The device can change its power state based on usage or other criteria.

5 (0x5)

Power State Settable

The SetPowerState method is supported. This method is found on the parent CIM_LogicalDevice class and can be implemented. For more information, see Designing Managed Object Format (MOF) Classes.

6 (0x6)

Power Cycling Supported

The SetPowerState method can be invoked with the PowerState parameter set to 5 (Power Cycle).

7 (0x7)

Timed Power On Supported

The SetPowerState method can be invoked with the PowerState parameter set to 5 (Power Cycle) and Time set to a specific date and time, or interval, for power-on.

 

PowerManagementSupported
Data type: boolean
Access type: Read-only

If TRUE, the device can be power managed, that is, put into a power-save state. If FALSE, the integer value 1 ("Not Supported") should be the only entry in the PowerManagementCapabilities array.

This property does not indicate whether power management features are currently enabled, or if enabled, which features are supported. For more information, see the PowerManagementCapabilities array. This property is inherited from CIM_LogicalDevice.

Resolution
Data type: uint32
Access type: Read-only

Ability of the sensor to resolve differences in the measured property. This value can vary depending on whether the device is linear over its dynamic range. This property is inherited from CIM_NumericSensor.

Status
Data type: string
Access type: Read-only

Current status of the object. This property is inherited from CIM_ManagedSystemElement.

Values include the following:

"OK"
"Error"
"Degraded"
"Unknown"
"Pred Fail"
"Starting"
"Stopping"
"Service"
"Stressed"
"NonRecover"
"No Contact"
"Lost Comm"
StatusInfo
Data type: uint16
Access type: Read-only

State of the logical device. If this property does not apply to the logical device, the value 5 (Not Applicable) should be used. This property is inherited from CIM_LogicalDevice.

ValueMeaning
1 (0x1)

Other

2 (0x2)

Unknown

3 (0x3)

Enabled

4 (0x4)

Disabled

5 (0x5)

Not Applicable

 

SystemCreationClassName
Data type: string
Access type: Read-only

Scoping system's creation class name. This property is inherited from CIM_LogicalDevice.

SystemName
Data type: string
Access type: Read-only

Scoping system's name. This property is inherited from CIM_LogicalDevice.

Tolerance
Data type: sint32
Access type: Read-only

Tolerance of the sensor for the measured property. This property, and the Resolution and Accuracy properties, are used to calculate the actual value of the measured physical property. Tolerance can vary depending on whether the device is linear over its dynamic range. This property is inherited from CIM_NumericSensor.

UpperThresholdCritical
Data type: sint32
Access type: Read-only

Threshold value that specifies the ranges (minimum and maximum values) for determining whether the sensor is operating under normal, non-critical, critical, or fatal conditions. If the CurrentReading property is between UpperThresholdCritical and UpperThresholdFatal, then the current state is critical. This property is inherited from CIM_NumericSensor.

UpperThresholdFatal
Data type: sint32
Access type: Read-only

Threshold value that specifies the ranges (minimum and maximum values) for determining whether the sensor is operating under normal, non-critical, critical, or fatal conditions. If the CurrentReading property is above UpperThresholdFatal, then the current state is fatal. This property is inherited from CIM_NumericSensor.

UpperThresholdNonCritical
Data type: sint32
Access type: Read-only

Threshold value that specifies the ranges (minimum and maximum values) for determining whether the sensor is operating under normal, non-critical, critical, or fatal conditions. If the CurrentReading property is between LowerThresholdNonCritical and UpperThresholdNonCritical, then the sensor is reporting a normal value. If the CurrentReading property is between UpperThresholdNonCritical and UpperThresholdCritical, then the current state is non-critical. This property is inherited from CIM_NumericSensor.

Remarks

The CIM_Tachometer class is derived from CIM_NumericSensor.

WMI does not implement this class.

This documentation is derived from the CIM class descriptions published by the DMTF. Microsoft may have made changes to correct minor errors, conform to Microsoft SDK documentation standards, or provide more information.

Requirements

Minimum supported client

Windows Vista

Minimum supported server

Windows Server 2003

Namespace

\root\CIMV2

MOF

CIMWin32.mof

DLL

CIMWin32.dll

 

 

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