A question about simulating sensor faults in E+

asked 2016-12-05 17:13:37 -0500

yiy11005 gravatar image

updated 2017-05-04 08:45:34 -0500

Dear Sir or Madam,

I simulated offset of outdoor air temperature sensor in "FaultModel:TemperatureSensorOffset:OutdoorAir" as

FaultModel:TemperatureSensorOffset:OutdoorAir, OATFault, !- Name ALWAYS_ON, !- Availability Schedule Name OATSeveritySch, !- Severity Schedule Name Controller:OutdoorAir, !- Controller Object Type VAV_1_OA_Controller, !- Controller Object Name 2.0; !- Temperature Sensor Offset {deltaC}

where the schedule "OATSeveritySch" is

Schedule:Compact, OATSeveritySch, !- Name On/Off, !- Schedule Type Limits Name Through: 8/19, !- Field 1 For: AllDays, !- Field 2 Until: 24:00, !- Field 3 0, !- Field 4 Through: 8/20, !- Field 5 For: AllDays, !- Field 6 Until: 24:00, !- Field 7 1, !- Field 8 Through: 12/31, !- Field 9 For: AllDays, !- Field 10 Until: 24:00, !- Field 11 0; !- Field 12

However, I found that

Output:Variable, *, !- Key Value Site Outdoor Air Drybulb Temperature , !- Variable Name Hourly; !- Reporting Frequency

and

Output:Variable, Air Loop AHU2 AHU/1 Outdoor Air Inlet, !- Key Value System Node Temperature ,!- Variable Name Timestep; !- Reporting Frequency

have the same value, and they do not change with the sensor faults.

May I know the reason? Your answer will be very appreciated.

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