Metadata fields and supported data types

The metadata provides a definition of the attributes included in each field (tag).

"metadata":

"alias":

"tagName":

"description":

"dataType":

"engUnit":

"min"

"max"

"interpolationType":

Specifying metadata

The metadata comes from field properties on the connected sourcefield.

• The Name of the field becomes the tagName metadata. This is the fully qualified name.

• The Description property value on the field becomes Description metadata.

• The DataType property value on the field becomes DataType metadata

• The Units property value on the field becomes EngUnit metadata.

• The Minimum property value on field becomes Min metadata value.

• The Maximum property value on field becomes Max metadata value.

Insight category

When you connect a field to an Insight connection by using the Source property, the Insight category appears on the field properties.

• InsightAliasName value becomes Alias in metadata.

• InsightInterpolationType value specifies InterpolationType in metadata.

Supported datatypes

• Int2 - Signed by 2-byte integer

• UInt2 - Unsigned 2-byte integer

• Int4 - Signed 4-byte integer

• UInt4 - Unsigned 4-byte integer

• Float - Single precision floating point number

• Double - Double precision floating point number

• String - Used to specify double byte string tags

Notes

• If you have uploaded metadata and then you make some changes in tag configurations, you will need to upload metadata again.

• If you skip metadata upload, then upload data to AVEVA Insight, the upload will work but some of the values will be sourced from AVEVA Insight, instead of the correct values from AVEVA™ Production Management.

Related topics

• Uploading metadata

• Add and configure an AVEVA Insight item