Join our "Ask Me About" community webinar on May 20th at 9 AM CET and 5 PM CET to explore cybersecurity and monitoring for Data Center and edge IT. Learn about market trends, cutting-edge technologies, and best practices from industry experts. Register and secure your Critical IT infrastructure
Significant Change of None for Analog Points
Geo SCADA Knowledge Base
Access vast amounts of technical know-how and pro tips from our community of Geo SCADA experts.
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for
Show only
|
Search instead for
Did you mean:
Invite a Co-worker
Send a co-worker an invite to the portal.Just enter their email address and we'll connect them to register. After joining, they will belong to the same company.
You have entered an invalid email address. Please re-enter the email address.
This co-worker has already been invited to the Exchange portal. Please invite another co-worker.
Please enter email address
Send InviteCancel
Invitation Sent
Your invitation was sent.Thanks for sharing Exchange with your co-worker.
📖HomeBack If you have significant change set to 'None' then the point's value will update when one of the following occur:
A user requests a 'Refresh'.
The value changes state, ie from 'high' to 'high high'.
On startup.
When it's configured scan group expires.
If you want the analog point to have regular updates you have to enable significant change and set the deadband low. Critical analog points should have a low significant change deadband, but high enough to prevent jitters being sent to the database. For less critical points the deadband should be higher.
Although a 'Refresh' will update the point, a scheduled integrity will not update the value if the value has not changed state. This is the difference between an integrity poll and a refresh.
For more information on Significant Change, refer to the online help 'Guide to Core Point Configuration (Defining Analog Point Details).