The following table describes the attributes used by these modules.
|
Name |
Description |
Default Value |
|---|---|---|
| Discharge Air Setpoint | Indicates discharge air temperature setpoint as determined by this module based on the zone air temperature error. | 13 °C (55 °F) |
| Discharge Air Setpoint Heating Max | Indicates maximum heating DA-T setpoint. | 40 °C (105 °F) |
| Discharge Air Setpoint Zone Satisfied | Indicates minimum heating DAT setpoint and the maximum cooling DAT setpoint. | 21 °C (70 °F) |
| Heating Absolute EWMA Effort | Represents Exponentially Weighted Moving Average (EWMA). It is computed by the PID primitive and is based on the Current Present Value and the Last Present Value. It is the absolute value of the difference between the two. | 0.0 % |
| Heating Absolute EWMA Error | Represents EWMA based on the absolute value of (Setpoint - Process Variable). | 0 °C (0 °F) |
| Heating EWMA Error | Represents EWMA based on the difference of (Setpoint - Process Variable). | 0 °C (0 °F) |
| Heating EWMA Present Value | Represents EWMA of the current Present Value. It is based on the difference of (Present Value - Last Present Value). | 0.0 % |
| Heating Percent Cmd | Indicates output of the Heating Reset PID. | 0.0 % |
| Heating Setpoint | Indicates desired heating setpoint for the zone. | 21 °C (72 °F) |
| Heating Zone Control Status | Indicates zone heating PID status:
|
0 = Normal |
| Mode | Indicates which state is active:
|
0 = Off |
| PID Tuning Reset | Causes the PID objects to reset their tuning parameters to the default based on the appropriate Process ID.
|
0 = Normal |
| Process Units | Specifies the units for the PID. | °C, °F |
| Process Variable | Indicates the control temperature. Either Zone temperature or return air temperature may be connected to this input. | 22 °C (70 °F) |
| State | Represents the current module mode of operation.
|
0 = Off |