How to set the scaling factor in trends for example if the assign tag (range from 0 - 3600) and show them on trend page automatically.
For scaling the trend scale you need to first put the RAW and Engineering scales in the variable tag configuration (snapshot shown below)
with which the trend tag is associated. Also if you were showing the trend tag in a normal trend page then it will take scales automatically
and if you were using Process Analysts then you have to change the settings as autoscale in Process Analysts properties.