Attributes in tagDefinitionList
In this section, you can find the descriptions of all the attributes for the tagDefinitionList item on the Output tab.
The following table lists the descriptions of all the attributes in the tagDefinitionList item:
| Attribute Name | Data Type | Description |
|---|---|---|
| pointName | String | The name of the tag on the PI Data Archive server. |
| descriptor | String | The description of the PI tag. |
| piServerName | String | The name of the PI Data Archive server that records the tag. |
| pointClass | String | The attribute that specifies point class from the point classes that belong to the PI Data Archive server. |
| pointType | String | The attribute that specifies the data type for the values that a point stores.
Supported point types include: Digital, Timestamp, Float64, Float32, Float16, Int32, Int16, String, and Blob. |
| pointSource | String | The attribute that identifies the source of data for a PI point. |
| changeDate | String | The last time when the PI point was changed. |
| creationDate | String | The time when the PI point was created. |
| digitalSet | String | The name of the digital set.
This attribute is only relevant when the pointType attribute is Digital. |
| engineeringUnits | String | The default unit of measurement for the PI point. |
| extendedDescription | String | Optional extended description for the PI point. |
| sourceTag | String | Reference to another PI point.
Data stream of this PI point is used as the source for the given PI point. |
| displayDigits | String | The attribute that determines the display precision of PI point values. |
| archiving | String | The attribute that enables or disables values archiving.
Supported values are 0 and 1. |
| scan | String | The attribute that enables or disables interface scanning.
Supported values are 0 and 1. |
| compressing | String | The attribute that determines whether snapshot events are selected to be sent to the archive file for storage.
Supported values are 0 and 1. |
| zero | String | The lowest possible value of a PI point. |
| span | String | The range between the maximum and minimum values for a point.
The sum of zero and span determines the highest possible value. |
| excdev | String | Exception deviation, the set of values that define a deadband used for exception reporting.
If this attribute is used, the excdevpercent attribute is recalculated. |
| excdevpercent | String | Percentage of exception deviation.
If this attribute is used, the excdev attribute is recalculated. |
| compdev | String | Compression deviation, the compression algorithm used to reduce the data flow from the interfaces to the PI Data Archive server.
If this attribute is used, the compdevpercent attribute is recalculated. |
| compdevpercent | String | Percentage of compression deviation.
If this attribute is used, the compdev attribute is recalculated. |