Equipment Variable

You can use Variables to represent conditions associated with Equipment during Recipe execution. Variables are evaluated as part of expressions defined in Transitions in the procedure. For more information, see the Transitions section.

Variables are defined in the scope of Equipment. A Variable has a name and an IO Reference. You can define multiple Variables for Equipment. No data type is explicitly associated with a Variable. Variables get their data type from the IO Reference point to which they are mapped.

NOTE: The Equipment Variable tab is available only when you are using the AVEVA Recipe Management Professional Edition.

Within Equipment, all Variables must have a unique name and these variable names cannot be a keyword such as AND, OR, and NOT. Apart from these, you should also avoid the following operator name: MOD, SHL, and SHR.

You can import and export Variables to/from an Equipment (CSV file).

Adding an Equipment Variable

You can add an Equipment Variable by clicking the Add button available in the Variables tab of an Equipment. The Add button is available only when you check out the Equipment.

To add an Equipment Variable

1. Open the Equipment details page and navigate to the Variables tab.

2. In the Variables tab, click the Add button. A new row is added in the variable grid.

3. In the Name box, type an appropriate name (31 characters maximum).

4. Click Update.

Editing an Equipment Variable

You can modify an existing Equipment Variable but appropriate caution must be taken before you rename an Equipment Variable. Renaming the Variable may invalidate a Recipe if the Variable is used in Recipe transitions. Check-out the Equipment before making any changes to Equipment Variable.

To edit an Equipment Variable

5. Open the Equipment Details page and navigate to the Variables tab.

6. In the Variables tab, select Variable and then click the Edit button. The variable name is now available for modification.

7. In the Name box, update the Variable details.

8. Click Update.

Deleting an Equipment Variable

You can delete an existing Equipment Variable but appropriate caution must be taken before you delete an Equipment Variable. Deleting the Variable may invalidate a Recipe if the Variable is used in Recipe transitions. Check-out the Equipment before deleting an existing Equipment Variable.

To delete an Equipment Variable

9. Open the Equipment details page and navigate to the Variables tab.

10. In the Variables tab, select Variable and then click the Delete button. The variable name is removed from the Equipment.

11. You must check-in the Equipment to save the changes.