I need late arrivals to be counted in the attendance record regardless of the length of the delay

The administrator can configure whether the calculation of tardiness and early departures is based on minutes, or whether each late arrival contributes equally to the total number of missed lessons:

For example, if you choose 0.2, then 6 late arrivals will add 6 × 0.2 = 1.2 lessons to the attendance record.

Summary of tardies and early departures

More helps: Attendance of students