Attributes (Totalization) - 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 Totalization modules.

Table 1. Totalization Attributes

Name

Type 1

Description

Default Value

Accumulator

V

Accumulates the remainders in the calculation of Present Value due to the precision limit of a single floating-point number. The sum of Present Value and Accumulator gives effectively a double floating-point expression of current totalized value for the module.

 

Active

 

Halts the update of Present Value when you transition this attribute from True to False. Writing this attribute from False to True resumes the Present Value update.

True

Error Since Last Reset

V

Set to True if, since last reset, the module Reliability has ever been set to any value other than Reliable. This output is False when the Reset input changes from False to True or an Reset command is issued.

 

Input

 

Contains the value to be totalized.

Off

Set Name: Off/On

Period

C

Specifies the execution period of this module when Setup is Analog Integration or Time in State.

60 Seconds

Reference State

 

Specifies the value the input needs to stay for the module to update the Present Value periodically.

On

Set Name: Off/On

Reset

 

Resets the Present Value, Accumulator, Rollover Count, and Rollover Amount to zero when you transition this attribute from False to True.

False

Rollover Amount

V

Increments by the current value of Present Value when the Present Value rolls over.

 

Rollover Count

V

Increments by 1 at Present Value rollover.

 

Rollover Limit

 

Specifies that if the Rollover Mode is selected to be Rollover Limit, this property allows you to set a value that would roll over automatically the Present Value (that is, add the Present Value to Rollover Amount, add 1 to Rollover Count, and set the Present Value and Accumulator to 0) as the Present Value exceeds the value.

10,000

Rollover Mode

 

Allows the user to set a method to automatically rollover the Present Value (that is, add the Present Value to Rollover Amount, add 1 to Rollover Count, and set the Present Value and Accumulator to 0). The rollover method can be based on value (Rollover Limit) or the user can select not to roll over. When Rollover Mode changes, Rollover Count and Rollover Amount should all be zeroed.

No Rollover

Set Name: Totalization Rollover

Scale Factor

 

Used for unit conversion.

1

Setup

C

Specifies the Setup of this module.

Time in State

Set Name: Totalization Setup

XX-RUNTIME (Present Value)

G, V

Contains a single floating-point expression of current totalized value for the module. The sum of Present Value and Accumulator gives effectively a double floating-point expression of current totalized value for the module.

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