Custom Fields

Adding Custom Fields

Custom fields allow Acquire™ to be extended by allowing new fields to be added, by applying simple mathematical formulas to one or more flowcomputer fields. Once defined, these custom fields can be used on the P&ID, detail screens, custom reports and alarms screen.

To view the list of custom fields:

Choose 'Custom Fields…' from the 'Config' menu.

This will display a list of all the custom fields that have been defined so far.

To add a new field:

Click the 'Add' button.

This will display the entry screen for the custom field:

Specify the fields as follows:

Field	Description
Full Field Name	This is the name used to identify the custom field.
Alarm	This checkbox indicates that the custom field is an alarm. When selected, an alarm will be raised when the value of the custom field is 1 or greater.
Station	This is the station that the field is associated with.
Stream	This is the stream that the field is associated with. This helps in locating the field when setting up the P&ID and detail screens.
Units	This is the units that should be used when displaying the field. Either select a unit from the popup menu or manually enter one.
Text Descriptions	Acquire™ allows fields to have text values to be associated with the numeric values that are returned from the calculation. eg 1 = Open, 2 = Closed etc. Numbers do not need to be sequential. Click the 'Add', 'Edit' or 'Delete' buttons to make changes to the text descriptions. See the section on adding Text Descriptions to fields for more information.
Formula	This is the formula that is used to calculate the value of the field. See the section on Entering a Formula for more information.

Once you have entered your custom field:

Click the 'OK' button to save the custom field.

Although the new custom field will appear on the custom fields list it will only be available on this screen only. It will not be made available to the rest of Acquire™ until the server is restarted.

To make the field active:

Either click the 'Apply' button

Click the 'OK' button.

Warning: Adding the fields will restart Acquire™.