Define analog field attribute options
- Last UpdatedJul 19, 2024
- 2 minute read
The following properties are part of the Analog Field Attribute:
|
Editor Option |
Description |
|---|---|
|
Name |
The name property of the Field Attribute. |
|
Attribute Type |
The type property of the Field Attribute. |
|
Category |
The attribute category property of the Field Attribute. |
|
Value |
If the Field Attribute is configured as Output, then Value is the initial Field Attribute value. If the Field Attribute is configured as Input or InputOutput, the Field Attribute value is determined by the input value. |
Note: A Field Attribute that starts with an underscore as the first character of the Field Attribute name is defined as a hidden attribute. Hidden attributes do not appear in Attribute Browser, Object Viewer, or the Attributes tab from the Properties box. Object Viewer and the Attributes tab from the Properties box provides the option to view hidden attributes. To show hidden attributes, go to the Galaxy menu, click Properties, select the Attributes tab, and select Include hidden.
The following user options are available for an Analog attribute:
|
Editor Option |
Associated Attribute |
Description |
Runtime Access |
|---|---|---|---|
|
Access mode |
AccessMode |
The read/write capabilities for the object. Valid values are Input, InputOutput, and Output. |
None |
|
Data type |
AnalogType |
The data type, Double, Float, Integer, of the analog attribute. |
None |
|
Description |
Desc |
By default, the Field Attribute description is used for alarm and event comments, as well as historization. If you configure a description for the history extension, this description is used instead. String limit to 256 characters. |
Read-Only |
|
Generate event upon value change |
LogDataChangeEvent |
If enabled, data change events for the Field Attribute will be logged to event history. |
Supervisory, User |
|
Value deadband |
Deadband |
The amount in engineering units by which a value referenced by the attribute must change to force a storage. A value of 0 means it is unused, and thus any value change forces a storage. Also, a quality change in the attribute always forces a storage regardless of this setting. |
Supervisory, User |
|
Engineering units |
EngUnits |
The name of the engineering units. For example, PSI. The maximum number of characters is 32. |
Read-Only |