Data Filter Prior to Storing in Historian or Publishing to Cloud

Ignition
1

Hello,

I am trying to think of a way to clean/filter noise from tag data prior to storing it in Historian or Publishing to the cloud. Any suggestions?

Thanks

2

If you can’t clean/filter the data at the source, you could use an expression tag in Ignition to do the filtering and historicize the expression tag rather than the raw tag.

2 Likes
3

I am also facing this problem, I was planning to use this script：

if(value ！= 0,  value, value)

but I found out, I can't know what the last data was like, what should I write for this filtering script?