About configuration

Name

N/A

The Attribute name is user-definable at configuration time. It is read-only at runtime.

Data Type

Type

Set the attribute's data type: Boolean, Integer, Float, Double, String, Time, Elapsed Time, or InternationalizedString.

Writeability

AttributeCategory

Set the attribute's writeability category:

Calculated

A value resulting from calculations performed on aggregated input values.

Calculated retentive

Calculated values saved across restarts (checkpointed)

Object writeable

The attribute’s value is set by the object and cannot be set by the user.

User writeable

The attribute’s value can be set by the user.

Note that if you select Object writeable, the security classification is not enabled.

Description

Description

By default, the Attribute description is used for alarm and event comments, as well as historization. If you configure a description for the history feature, that description is used instead. String limit 256 characters.

Array

Dimension1

Select if the value of the attribute is an array. Set the array's dimensions in the Number of elements box.

# of Elements

Dimension1

The number of elements in the array. An Initial Value text box will appear for each array element.

Eng Units

EngUnits

The name of the engineering units for this attribute. For example, PSI. The maximum number of characters is 32.

Initial Value

DefaultValue

The attribute's initial value. The editor interface within the Value group box will change based on the data type you have selected, either a list box for a Boolean value (True or False) or a text box for all other data types.

Enable Lock

N/A

Select to enable locking of attributes.

Enable Write Permissions

N/A

Select to enable configuration of write permissions.