| Name | Description | |
|---|---|---|
  | AccessRights | Item Access Rights.
Remarks: (OPC_PROPERTY_ACCESS_RIGHTS) |
| AlarmAreaList | Alarm Area List.
Remarks: (OPC_PROPERTY_ALARM_AREA_LIST) |
| AlarmQuickHelp | Alarm Quick Help.
Remarks: (OPC_PROPERTY_ALARM_QUICK_HELP) |
| ChangeRateLimit | Rate of Change Limit.
Remarks: (OPC_PROPERTY_CHANGE_RATE_LIMIT) |
| CloseLabel | Contact Close Label.
Remarks: (OPC_PROPERTY_CLOSE_LABEL) |
| ConditionLogic | Condition Logic.
Remarks: (OPC_PROPERTY_CONDITION_LOGIC) |
| ConditionStatus | Condition Status.
Remarks: (OPC_PROPERTY_CONDITION_STATUS) |
| ConsistencyWindow | (OPC_PROPERTY_TYPE_DESCRIPTION). |
| DataFilterValue | (OPC_PROPERTY_DATA_FILTER_VALUE). |
| DataType | Item Canonical DataType.
Remarks: (OPC_PROPERTY_DATATYPE) |
| Deadband | Deadband.
Remarks: (OPC_PROPERTY_DEADBAND) |
| DefaultQualifiedName | Default qualified name (used with OPC XML-DA). Empty. |
| Description | Item Description.
Remarks: (OPC_PROPERTY_DESCRIPTION) |
| DeviationLimit | Deviation Limit.
Remarks: (OPC_PROPERTY_DEVIATION_LIMIT) |
| Dictionary | (OPC_PROPERTY_DICTIONARY). |
| DictionaryId | (OPC_PROPERTY_DICTIONARY_ID). |
| EUInfo | Item EUInfo.
Remarks: (OPC_PROPERTY_EU_INFO) |
| EUType | Item EU Type.
Remarks: (OPC_PROPERTY_EU_TYPE) |
| EUUnits | EU Units.
Remarks: (OPC_PROPERTY_EU_UNITS) |
| HighEU | High EU.
Remarks: (OPC_PROPERTY_HIGH_EU) |
| HighHighLimit | HiHi Limit.
Remarks: (OPC_PROPERTY_HIHI_LIMIT) |
| HighIR | High Instrument Range.
Remarks: (OPC_PROPERTY_HIGH_IR) |
| HighLimit | Hi Limit.
Remarks: (OPC_PROPERTY_HI_LIMIT) |
| IsNull | Determines whether the property descriptor is null, i.e. specifies neither property ID. |
| LimitExceeded | Limit Exceeded.
Remarks: (OPC_PROPERTY_LIMIT_EXCEEDED) |
| LowEU | Low EU.
Remarks: (OPC_PROPERTY_LOW_EU) |
| LowIR | Low Instrument Range.
Remarks: (OPC_PROPERTY_LOW_IR) |
| LowLimit | Lo Limit.
Remarks: (OPC_PROPERTY_LO_LIMIT) |
| LowLowLimit | LoLo Limit.
Remarks: (OPC_PROPERTY_LOLO_LIMIT) |
| MaximumValue | Maximum Value.
Remarks: OPC XML-DA Specification Version 1.01. |
| MinimumValue | Minimum Value.
Remarks: OPC XML-DA Specification Version 1.01. |
| Null | A null property descriptor. |
| OpenLabel | Contact Open Label.
Remarks: (OPC_PROPERTY_OPEN_LABEL) |
| PrimaryAlarmArea | Primary Alarm Area.
Remarks: (OPC_PROPERTY_PRIMARY_ALARM_AREA) |
| PropertyId | The Property ID of the OPC property. |
| QualifiedName | The qualified name for this property (used with OPC XML-DA). |
| QualifiedNameString | The string form of the qualified name for this property (used with OPC XML-DA). |
| Quality | Item Quality.
Remarks: (OPC_PROPERTY_QUALITY) |
| ScanRate | Server Scan Rate.
Remarks: (OPC_PROPERTY_SCAN_RATE) |
| SoundFile | Sound File.
Remarks: (OPC_PROPERTY_SOUND_FILE) |
| Timestamp | Item Timestamp.
Remarks: (OPC_PROPERTY_TIMESTAMP) |
| TimeZone | Item Timezone.
Remarks: (OPC_PROPERTY_TIMEZONE) |
| TypeDescription | (OPC_PROPERTY_TYPE_DESCRIPTION). |
| TypeId | (OPC_PROPERTY_TYPE_ID). |
| TypeSystemId | (OPC_PROPERTY_TYPE_SYSTEM_ID). |
| UnconvertedItemId | (OPC_PROPERTY_UNCONVERTED_ITEM_ID). |
| UnfilteredItemId | (OPC_PROPERTY_UNFILTERED_ITEM_ID). |
| Value | Item Value.
Remarks: (OPC_PROPERTY_VALUE) |
| ValuePrecision | Value Precision.
Remarks: OPC XML-DA Specification Version 1.01. |
| WriteBehavior | (OPC_PROPERTY_WRITE_BEHAVIOR). |
OPC Studio User's Guide and Reference
DAPropertyDescriptor Class Properties