Batch overrides of I/O assignments

If you have a large number of overrides to enter, information can be copied and pasted between the Mapping view and Microsoft Excel. However, you must be careful when moving data to and from the Mapping view. Observe the following conditions:

• Only data in the two override columns is editable. All other columns are read only.

• Even though you can only change the override columns, always copy all columns. This will help you verify that data is being copied correctly when you paste back into the Mapping view.

• When you copy data from the Mapping view, column headers are automatically included to help you while editing in Excel. When you copy your edited data back to the Mapping view, do not copy this header row, only copy the data.

• If you need to sort attributes, sort them in the Mapping view before you copy them into Excel.

• Do not change the sort order of the attributes in the Mapping view until you have pasted the edits made in Excel and applied them.

• Do not sort the attributes in Excel. Attributes can only be sorted in the Mapping view and the sort order cannot change until your edits have been applied.

  WARNING! The Mapping view does not verify data that is copied to it. Therefore, if the order of attributes is different in Excel than it is in the Mapping view, the I/O references will be broken. Once changes are applied, there is no way to undo them.

To validate and edit I/O assignments

1. Select the Validate References icon to check that the I/O assignments in the Mapping table are valid. This action retrieves data and quality information from the runtime data acquisition subsystem.

   Important: I/O assignments can only be validated if the Platform, AppEngine, and associated DI object have been successfully configured and deployed.

2. Check the data returned in the Runtime Value column. If the assignment is not valid or if the quality is bad, no data will be returned (the Value column will be empty), and "Not Connected" will be displayed in the Runtime Quality column (select the Show Details button to reveal this column).

3. To isolate invalid assignments, select the filter icon at the top of the Runtime Quality column filter for "Not Connected" messages.

4. Edit the I/O assignment of objects as needed.

   • To override a scan group and DI object assignment, enter the new value in the Device.ScanGroup Override column. The override value for this column cannot contain more than one period (.) to separate the DI object name from the scan group name.

   • To override an object and attribute name, enter the new value in the Object.Attribute Override column.

5. Select Apply Pending Overrides to save your changes.

   • To discard the last unsaved override setting, select Undo Last Pending Override.

   • To discard the all unsaved override settings, select Undo All Pending Overrides.