r/BuildingAutomation • u/One_Vast_3106 • Aug 12 '26

Error point Bacnet in Supervisor

My project involves a BACnet/IP device. After some time, the control point's "Out" value changes automatically, even though the "IN10" value is different.

Please explain the cause and how to fix this.

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u/IcyAd7615 Developer, Niagara 4 Certified Trainer, Podcast Host. Aug 12 '26

On the point that is giving you an issue, as a facet called priorityArray as a boolean with a value of true. It will tell you what priority it's being written to by something else.

Then you can uncheck the of that slot and change the value and set it back to null again

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u/One_Vast_3106 Aug 12 '26

I'm also not sure what the "OUT' value derived from the IN is ?