According to the BACnet protocol documentation:

Defines a standardized object whose properties represent the externally visible characteristics of a process that provides authentication factors read by a physical device. An authentication factor is a data element of a credential that is a unique digital identifier used to verify the identity of a credential. A credential may have multiple authentication factors. Examples of physical devices that may be represented by this object type are card readers, keypads, biometric readers, etc.

Objects of type credentialDataInput have the following properties:

•ackedTransitions

•description

•eventDetectionEnable

•eventEnable

•eventMessageTexts

•eventMessageTextsConfig

•eventState

•eventTimeStamps

•notificationClass

•notifyType

•objectIdentifier

•objectName

•objectType

•outOfService

•presentValue

•profileLocation

•profileName

•propertyList

•reliability

•reliabilityEvaluationInhibit

•statusFlags

•supportedFormatClasses

•supportedFormats

•tags

•updateTime