Acquire Image Tool Properties Some applications may want to change the logic for when latches are reported. For example, an application may require only sending every-other latch so a robot only processes 50% of the instances generated from the latch. Additionally, if you would like a custom tag to be associated with instances created by the latch event, the call to pm.ace.blt.ltch can be modified to pass in a tag for the last argument. ACE Reference Guide, 18317-000 Rev A Page 664