Question:
How can I make some tags be updated before others in Elipse E3?
Solution:
Usually, the driver will require each tag’s value periodically, according to the tag’s Scan property. Whenever the tag’s value or quality is altered, its value is passed to the I/O driver.
You can assign a smaller scan time for variables that need to be updated more times while assigning a larger scan time for variables with low update priority. Notice, however, that the I/O driver’s performance depends on a series of other factors, such as device type, communication interface type, baud rate, errors rate, etc.
In addition, you can also set up the AdviseType property as 0-AlwaysinAdvise, so the tag’s value will always be updated.
