Asset Number Restriction

Warning: This topic is aimed at Schedule AI Assistant administrators.
Settings in the Advanced Settings page are shared among all users of Schedule AI Assistant for the refinery site. Any changes made in this page affect all users.

You can limit the maximum number of sources feeding a target unit at any one time during the schedule simulation, or the maximum number of targets fed from a source unit. For example, you may want to limit the number of tanks feeding a distillation unit.

You may have access to a similar setting called Asset Number Change Restrictions. Note the difference between the two:

• The Asset Number Restriction setting limits the overall number of source or target units.

• The Asset Number Change Restrictions setting limits the number of source or target units that can be added between blends.

  

To show the Group and Description information for a setting, as shown in the previous image, click the ellipsis icon () at the end of the row and then the downward arrow icon ().

To create an asset number restriction setting, follow these steps:

1. Click the Create Asset Number Restriction link. The Create Asset Number Restriction pane opens.

   

2. Enter a Title for the asset number restriction setting.

3. Click the icon next to Sources to add a source. Type in the field that appears to see a list of matching source names. You can add multiple sources by clicking the icon again. To delete a source, click the icon next to it.

4. Click the icon next to Targets to add a target. Type in the field that appears to see a list of matching target names. You can add multiple targets by clicking the icon again. To delete a target, click the icon next to it.

5. Choose between the Sources and Targets options next to Restrict.

   • If you choose Sources, the setting will restrict the number of active sources feeding the targets you have selected.

   • If you choose Targets, the setting will restrict the number of active targets fed from the sources you have selected.

6. Enter the Maximum number of active sources or targets.

7. Enable the Editable switch if you want users to be able to edit the asset number restriction setting in the My Setup pane of the Setup Run page, within the boundaries you establish.

   If you do not want to make the setting editable, the following steps do not apply. Click Create to create the asset number restriction setting.

8. Enter a Description for the setting. This appears under the setting name in the My Setup pane.

9. Enter a Group for the setting. This is a heading under which the asset number restriction setting appears in the My Setup pane. You should assign related settings to the same group.

10. Enter a Lower Limit and an Upper Limit for the setting. This defines the range of active sources or targets users can set. For example, you may want users to be able to set values between one and five active sources or targets only.

11. Enter an Increment value. This defines the amount of change when users click the left or right arrow icons in the setting. A value of one is sensible in this case.

12. Click Create to create the asset number restriction setting.

To edit an asset number restriction setting:

13. Click the ellipsis icon () at the end of the corresponding row of the Asset Number Restriction pane. A list of additional icons appears.

14. Click the icon. The Edit Asset Number Restriction pane opens. This has the same fields as the Create Asset Number Restriction pane.

15. Once you have made your changes, click Update.

To delete an asset number restriction setting:

16. Click the ellipsis icon () at the end of the corresponding row of the Asset Number Restriction pane. A list of additional icons appears.

17. Click the icon. The Remove Asset Number Restriction? dialog box opens.

18. Click Discard and continue. The setting is deleted.

Note: After you have made changes to the Advanced Settings page, you must click the Save button at the bottom right corner of the window before leaving the page. If you try to leave the page by clicking Back to optimize and there are unsaved changes, you are prompted to save them.