The following table describes the attributes used by the Heating Proportional Valve with DA-T Low Limit module.
|
Name |
Type 1 |
Description |
Default Value |
|---|---|---|---|
|
Compensator Cmd |
Controls the heating and cooling valve. The valve is commanded from 0% to 100%. This output incorporates the Lead Compensator. |
0.0 Display Units: % |
|
|
Control Status |
V |
Current status of the controller for heating control. |
Display Units: % |
|
Failsoft Value |
Contains the value of the Percent Cmd output when commanded to Failsoft. |
100% |
|
|
Flush Position |
Specifies the value the output is commanded to when Mode = Water Flush. This value is sent directly to the Percent Cmd output. |
100% |
|
|
HTG-ABSEFFORT (Heating Absolute EWMA Effort) |
Provides an EWMA based on the absolute value of (Current Present Value - Last Present Value). The PID computes this value. |
0.0 Display Units: % |
|
|
HTG-ABSERROR (Heating Absolute EWMA Error) |
Provides an EWMA based on the absolute value of (Setpoint - Process Variable). The PID computes this value. |
0.0 Display Units: °C, °F |
|
|
HTG-ERROR (Heating EWMA Error) |
Provides an EWMA based on the difference of (Setpoint - Process Variable). The PID computes this value. |
0.0 Display Units: °C, °F |
|
|
HTG-EWMA (Heating EWMA Present Value) |
Provides an EWMA of the Present Value. The PID computes this value. |
0.0 Display Units: % |
|
|
HTG-OUTSTATE (State) |
V, G |
Current operational mode of the output controller. |
Set Name: UV Valve Out |
|
Limited Max Value |
Specifies that when Mode = Limited Max, this is the value the output is commanded to. |
100% |
|
|
Low Limit Process Variable |
Specifies that when Mode = Control Limit, this is the variable that is controlled. Typically connected to the Discharge Air Temperature. |
13 °C, 55 °F |
|
|
Low Limit Setpoint |
Desired setpoint for the Limit Variable to be controlled to when Mode = Control Limit. |
13 °C, 55 °F |
|
|
Mode |
Commands the module into a state of operation. |
Off Set Name: UV Valve Out |
|
|
Output Overridden |
Indicates when the actual output controlled by this output is overridden by a user. |
False |
|
|
Output Position |
Provides the current Present Value of the output that this controller drives. |
0% |
|
|
Percent Cmd |
V |
Contains the analog percent output to be used to control the single actuator that is providing heating. |
Display Units: % |
|
PID Tuning Reset |
Causes the PID objects to reset their tuning parameters to the default based on the appropriate Process ID. |
Normal Set Name: PID Tuning Reset |
|
|
Process Units |
Specifies the units for the PID. For this particular module, °C and °F are the only two valid values. |
°C Set Name: Unit |
|
|
Process Variable |
Specifies that when Mode = Control, this is the variable that is controlled. Typically connected to the Zone Temperature. |
22 °C, 72 °F |
|
|
Setpoint |
Contains the desired setpoint for the Process Variable to be controlled to when Mode = Control. |
22 °C, 72 °F |