Intervention concept (IC)
9
166 | 184
Attendance check Intervention monitoring
Figure 29: Intervention in case of fault
A Attendance check B Intervention monitoring
t1.. Time t1 for attendance check ts.. Time ts for service intervention monitoring
..t1 X Time t1 has expired ..ts X Time ts has expired
G ↑ Global alarming S Service intervention
G
A B
t1..