Attributes (Humidification Staged Outputs) - 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 Humidification Staged Outputs modules.

Table 1. Humidification Staged Outputs Attributes

Name

Type 1

Description

Default Value

Control Band

V

Control band for the MSC.

Display Units: % RH

Discharge Humidity

 

Contains the process variable when the activity operates in the Limited H Control mode.

70.0% RH

Discharge Humidity Setpoint

 

Contains the desired process variable setpoint when the activity operates in the Limited H Control mode.

70.0% RH

Eff Minimum Off Time

V

Contains the minimum off time used by the MSC.

Display Units: Seconds

Eff Minimum On Time

V

Contains the minimum on time used by the MSC.

Display Units: Seconds

Eff Process Time Const

V

Contains the effective process time constant used by the MSC.

Display Units: Seconds

Eff Process Variable

V

Process Variable to be used by the MSC.

Display Units: % RH

Humidity Control Status

V

Current saturation status of the controller.

Set Name: Control Status

Humidity Process ID

 

Defines the type of process being controlled. This input must be set to either zone humidity or return humidity depending on the actual process.

RA-H

Set Name: Process ID

Humidity Process Variable

 

Used for either the return air humidity or the zone air humidity. This is the process variable when the activity operates in the H Control mode.

40.0% RH

Humidity Setpoint

 

Contains the desired process variable setpoint when the activity operates in the H Control mode.

40.0% RH

HUM-MINOFF (Minimum Off Time)

 

Min Off Duration for all stages.

120 Seconds

HUM-MINON (Minimum On Time)

 

Min On Duration for all stages.

120 Seconds

HUM-O (Humidity Percent Cmd)

V

Contains a representative analog percent output on a scale of 0% to 100%. This output should be connected to the humidification control device.

Display Units: %

HUM-OUTSTATE (State)

G, V

Contains the current operational mode of the output controller.

Set Name: AHU Hum Prop

Instant Shutdown

V

Contains the indication to the MSC to shut all outputs off instantly.

 

Max Capacity Fraction

 

Contains the ratio of the largest stage to the sum of all the stages.

1.0

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%

Mode

 

Mode requested by State Selection.

Off

Set Name: AHU Hum Prop

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

PMAC Period

V

Period used by the PMAC algorithm portion of the MSC.

Display Units: Seconds

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