Specifications

CARROLL TOUCH Chapter 1 - Introduction to Infrared Touch Systems
Touch System Programmer’s Guide 1-7
Criteria for Unfailing a Beam
If a failed beam appears not to be interrupted for the amount of time
specified by the Unfail Time parameter, it is unfailed and removed from
the failed beam table by the touch system firmware.
Failed Beam Reports
Two SFP commands can be used to generate reports related to the failed
beam status of the touch system: Get_Error_Report (32H) and
Get_Failed_Beam_Report (36H). See Appendix A, “Smart-Frame
Protocol Command Reference,” for details on these commands.