Applicable Systems
- Primary: GENSYS
Objective/Method/Outcome
- Objective: Determine if setpoint is static.
- Method: The rule examines a set point during occupancy hours (Occ) and determines how many times it was changed. If the weekly count is less than the threshold, an insight is generated.
- Outcome: An insight is generated if weekly set point reset threshold is not reached.
Logic
- Input (normalized) set point and occupancy
- If the building is occupied pass the setpoint.
- Compare the current set point with the previous set point.
- Calculate setpoint reset count (CTL) and aggregate resets on weekly basis.
- If setpoint reset count exceeds allowed weekly reset count threshold, generate insight.
while( Occ == 1 ){ if( Set point != Prev. Set point ){ Reset Counter = Reset Counter + 1 } if( Reset Counter < Weekly Reset Threshold){ Insight- Setpoint Reset below Threshold } }
Description / Method
The rule examines a set point during occupancy hours (Occ) and determines how many times it was changed. If the weekly count is less than the threshold, an insight is generated.
Diagnosis / Recommended Action
- Investigate if a set point reset strategy is a viable option for this sensor
- Check if set point is in manual
Message
Set point (SP) has been static for the past week.
Notes
To change the period, edit block 21 (default is weekly). To change allowable minimum changed allowed, edit block 22 (default is 1 time).Default Values for Constants
- Weekly Setpoint Reset Threshold: 1
Rule Template Type
- Insight Type: Fault Detection
- Trigger Type: Active High
Default Priority
Medium
Inputs
Inputs | Units | Default Value | Tags | Description |
---|---|---|---|---|
Setpoint | sp | Set point statistics | ||
Occupied | occupied | Building occupancy |
Output Calculated Trend Logs
Output CTL | Units | Description |
---|---|---|
Setpoint_Reset_Count | Reset count statistics |