Bad quality data

FactoryTalk Historian ME

tracks data quality during the data collection and the data transfer. It may happen that data is of bad quality (for example, if the controller loses its connection to the

FactoryTalk Historian ME

, or if a running tag is removed from the controller but not from

FactoryTalk Historian ME

).

Bad quality data is displayed in the point list with the

Bad_Quality

value.