Acquire Image Tool Properties The black line represents the stop line at the 75% position along the belt window. Belt Control: Defining a Custom Belt Program The default belt monitoring program is responsible for monitoring all belts being controlled on a single controller. That program monitors the part and target queues associated with the specified robots and applying the I/O signals associated with each belt. If the default behavior is not acceptable, the default program can be customized in the process strategy configuration section located here: ACE Reference Guide, 18317-000 Rev A Page 657