AVEVA Historian Reader resources

The AVEVA Historian Reader resources specify the tag configuration for retrieving data from an AVEVA historian database. This module can either fetch the latest data entries or retrieve values within a defined historical time window, beginning with a specified offset from the current time.

This resource file enables efficient organization and retrieval of data for multiple tags in the AVEVA historian, with metadata that adds useful context to the output. Each tag’s metadata will be included in the data messages returned by the module.

Code example: AVEVA Historian Reader resources

A JSON file defines the tag configuration, where each tag must include a name field. Additional fields can be added to provide metadata that accompanies the retrieved data output.

{

"tags": [

{

"name": "heater_001.sensorfault",

"machine": "alfa"

},

{

"name": "heater_002.sensorfault",

"machine": "beta"

}

]

}