Rockwell Automation Publication 2198-UM004A-EN-P - October 2019 401
Absolute Position Recovery Chapter 14
At that point, the controller can access the values of
ID109 (P0.050)…ID111 (P0.052).
ID109 (P0.050) shows the status of the absolute encoder. When absolute
position lost or absolute position overflow is shown, this is an indication that the
absolute position is invalid. You must redo the homing procedure and reinitialize
the absolute coordinates.