Issue
Does Niagara G3 provide a method to throttle rapidly changing BACnet proxy point values so they don't overwhelm the network with traffic?
Environment
Niagara G3, ENC-410, ENC-520
Cause
Rapidly changing BACnet proxy point overwhelming the network with traffic.
Resolution
The Min Write Time property applies to writable proxy points, especially ones that have one or more linked inputs. It specifies the minimum amount of time allowed between writes. It provides a method to throttle rapidly changing values so that only the last value is written. If this property value is 0 (default), this rule is disabled (all value changes attempt to write).
The Min Write Time of the Tuning Policy can be set to limit the frequency of rapidly changing proxy points being sent.
1. Open the station and expand its BACnetNetwork
2. Expand Tuning Polices
3. Double-click on the policy you want to update
4. Enter a minimum time to be used in the Min Write Time property.
5. Save change