ENTITY-SENSOR-MIB
File:
ENTITY-SENSOR-MIB.mib (16708 bytes)
Imported modules
Imported symbols
Defined Objects
| entitySensorMIB |
1.3.6.1.2.1.99 |
| This module defines Entity MIB extensions for physical sensors. Copyright (C) The Internet Society (2002). This version of this MIB module is part of RFC 3433; see the RFC itself for full legal notices. |
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| entPhySensorEntry |
1.3.6.1.2.1.99.1.1.1 |
| Information about a particular physical sensor. An entry in this table describes the present reading of a sensor, the measurement units and scale, and sensor operational status. Entries are created in this table by the agent. An entry for each physical sensor SHOULD be created at the same time as the associated entPhysicalEntry. An entry SHOULD be destroyed if the associated entPhysicalEntry is destroyed. |
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EntPhySensorEntry |
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| entPhySensorType |
1.3.6.1.2.1.99.1.1.1.1 |
| The type of data returned by the associated entPhySensorValue object. This object SHOULD be set by the agent during entry creation, and the value SHOULD NOT change during operation. |
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EntitySensorDataType |
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| entPhySensorScale |
1.3.6.1.2.1.99.1.1.1.2 |
| The exponent to apply to values returned by the associated entPhySensorValue object. This object SHOULD be set by the agent during entry creation, and the value SHOULD NOT change during operation. |
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EntitySensorDataScale |
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| entPhySensorPrecision |
1.3.6.1.2.1.99.1.1.1.3 |
| The number of decimal places of precision in fixed-point sensor values returned by the associated entPhySensorValue object. This object SHOULD be set to '0' when the associated entPhySensorType value is not a fixed-point type: e.g., 'percentRH(9)', 'rpm(10)', 'cmm(11)', or 'truthvalue(12)'. This object SHOULD be set by the agent during entry creation, and the value SHOULD NOT change during operation. |
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EntitySensorPrecision |
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| entPhySensorValue |
1.3.6.1.2.1.99.1.1.1.4 |
| The most recent measurement obtained by the agent for this sensor. To correctly interpret the value of this object, the associated entPhySensorType, entPhySensorScale, and entPhySensorPrecision objects must also be examined. |
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EntitySensorValue |
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| entPhySensorValueUpdateRate |
1.3.6.1.2.1.99.1.1.1.8 |
| An indication of the frequency that the agent updates the associated entPhySensorValue object, representing in milliseconds. The value zero indicates: - the sensor value is updated on demand (e.g., when polled by the agent for a get-request), - the sensor value is updated when the sensor value changes (event-driven), - the agent does not know the update rate. |
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Unsigned32 |
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Defined Objects
| EntitySensorDataType |
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| An object using this data type represents the Entity Sensor measurement data type associated with a physical sensor value. The actual data units are determined by examining an object of this type together with the associated EntitySensorDataScale object. An object of this type SHOULD be defined together with objects of type EntitySensorDataScale and EntitySensorPrecision. Together, associated objects of these three types are used to identify the semantics of an object of type EntitySensorValue. Valid values are: other(1): a measure other than those listed below unknown(2): unknown measurement, or arbitrary, relative numbers voltsAC(3): electric potential voltsDC(4): electric potential amperes(5): electric current watts(6): power hertz(7): frequency celsius(8): temperature percentRH(9): percent relative humidity rpm(10): shaft revolutions per minute cmm(11),: cubic meters per minute (airflow) truthvalue(12): value takes { true(1), false(2) } |
| TEXTUAL-CONVENTION |
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INTEGER |
other(1), unknown(2), voltsAC(3), voltsDC(4), amperes(5), watts(6), hertz(7), celsius(8), percentRH(9), rpm(10), cmm(11), truthvalue(12) |
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| EntitySensorDataScale |
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| An object using this data type represents a data scaling factor, represented with an International System of Units (SI) prefix. The actual data units are determined by examining an object of this type together with the associated EntitySensorDataType object. An object of this type SHOULD be defined together with objects of type EntitySensorDataType and EntitySensorPrecision. Together, associated objects of these three types are used to identify the semantics of an object of type EntitySensorValue. |
| TEXTUAL-CONVENTION |
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INTEGER |
yocto(1), zepto(2), atto(3), femto(4), pico(5), nano(6), micro(7), milli(8), units(9), kilo(10), mega(11), giga(12), tera(13), exa(14), peta(15), zetta(16), yotta(17) |
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| EntitySensorPrecision |
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| An object using this data type represents a sensor precision range. An object of this type SHOULD be defined together with objects of type EntitySensorDataType and EntitySensorDataScale. Together, associated objects of these three types are used to identify the semantics of an object of type EntitySensorValue. If an object of this type contains a value in the range 1 to 9, it represents the number of decimal places in the fractional part of an associated EntitySensorValue fixed- point number. If an object of this type contains a value in the range -8 to -1, it represents the number of accurate digits in the associated EntitySensorValue fixed-point number. The value zero indicates the associated EntitySensorValue object is not a fixed-point number. Agent implementors must choose a value for the associated EntitySensorPrecision object so that the precision and accuracy of the associated EntitySensorValue object is correctly indicated. For example, a physical entity representing a temperature sensor that can measure 0 degrees to 100 degrees C in 0.1 degree increments, +/- 0.05 degrees, would have an EntitySensorPrecision value of '1', an EntitySensorDataScale value of 'units(9)', and an EntitySensorValue ranging from '0' to '1000'. The EntitySensorValue would be interpreted as 'degrees C * 10'. |
| TEXTUAL-CONVENTION |
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Integer32 |
-8..9 |
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| EntitySensorValue |
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| An object using this data type represents an Entity Sensor value. An object of this type SHOULD be defined together with objects of type EntitySensorDataType, EntitySensorDataScale and EntitySensorPrecision. Together, associated objects of those three types are used to identify the semantics of an object of this data type. The semantics of an object using this data type are determined by the value of the associated EntitySensorDataType object. If the associated EntitySensorDataType object is equal to 'voltsAC(3)', 'voltsDC(4)', 'amperes(5)', 'watts(6), 'hertz(7)', 'celsius(8)', or 'cmm(11)', then an object of this type MUST contain a fixed point number ranging from -999,999,999 to +999,999,999. The value -1000000000 indicates an underflow error. The value +1000000000 indicates an overflow error. The EntitySensorPrecision indicates how many fractional digits are represented in the associated EntitySensorValue object. If the associated EntitySensorDataType object is equal to 'percentRH(9)', then an object of this type MUST contain a number ranging from 0 to 100. If the associated EntitySensorDataType object is equal to 'rpm(10)', then an object of this type MUST contain a number ranging from -999,999,999 to +999,999,999. If the associated EntitySensorDataType object is equal to 'truthvalue(12)', then an object of this type MUST contain either the value 'true(1)' or the value 'false(2)'. If the associated EntitySensorDataType object is equal to 'other(1)' or unknown(2)', then an object of this type MUST contain a number ranging from -1000000000 to 1000000000. |
| TEXTUAL-CONVENTION |
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Integer32 |
-1000000000..1000000000 |
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| EntitySensorStatus |
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| An object using this data type represents the operational status of a physical sensor. The value 'ok(1)' indicates that the agent can obtain the sensor value. The value 'unavailable(2)' indicates that the agent presently cannot obtain the sensor value. The value 'nonoperational(3)' indicates that the agent believes the sensor is broken. The sensor could have a hard failure (disconnected wire), or a soft failure such as out- of-range, jittery, or wildly fluctuating readings. |
| TEXTUAL-CONVENTION |
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INTEGER |
ok(1), unavailable(2), nonoperational(3) |
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| EntPhySensorEntry |
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| SEQUENCE |
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EntitySensorDataType as entPhySensorType |
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EntitySensorDataScale as entPhySensorScale |
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EntitySensorPrecision as entPhySensorPrecision |
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EntitySensorValue as entPhySensorValue |
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EntitySensorStatus as entPhySensorOperStatus |
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SnmpAdminString as entPhySensorUnitsDisplay |
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TimeStamp as entPhySensorValueTimeStamp |
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Unsigned32 as entPhySensorValueUpdateRate |
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