Attributes (Heating Proportional Valve with DA-T Low Limit) - Johnson Controls - Metasys - LIT-12011147 - Software Application - Controller Configuration Tool - 13.1

Controller Tool Help

Brand
Johnson Controls
Metasys
Product name
Controller Configuration Tool
Document type
User Guide
Document number
LIT-12011147
Version
13.1
Revision date
2019-12-04
Language
English

The following table describes the attributes used by the Heating Proportional Valve with DA-T Low Limit module.

Table 1. Heating Proportional Valve with DA-T Low Limit Attributes

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

1 C - Configuration Mode Only, G - Default Element (Generated State, if applicable), SC - Simulation and Commissioning Modes Only, V - Calculated Value (Outputs)