User manual

46
a)
b) c)
Figure 4.2 : a) System in off condition b) RB6 LED turn on when count greater than
0 c) LCD display “Full Count” for count equal to five
RB6 LED indicates the relay that is connected to lighting system. Relay is on
if RB6 LED is turned on. RB7 LED indicates error. LED wills on if error occur. RB0
and RB1 define sensor 1 and sensor 2 respectively.
There is another situation where error occurs. Only sensor 1 either sensor 2
detect a presence of object, RB7 LED will turned on show that an error occurred.
Similar if both sensors detect an object and the object did not move on after 0.5
second, error also will occur.
RB6
turn on
Full
count
=5
RB6 initially
off condition