Tags not showing in ControlLogix browse results

When the "External Access" setting in the ControlLogix processor for a tag is set to "None", the tag information is not returned to Ignition during reading of tag information from the processor.

Using RSLogix 5000, check and change the External Access setting as shown in the image below. It must be set to either Read Only or Read/Write for the tag to show in the Ignition browse results.