2
0
2
0
-1
2
18
Installation
Branches
The read head detects one lane at the lower edge of the field of vision and two lanes at the
upper edge of the field of vision; the read head indicates this as a branch.
The read head detects two lanes at the lower edge of the field of vision and one lane at the
upper edge of the field of vision; the read head indicates this as an intersection.
Branches or intersections can be displayed as follows:
Figure 3.8
Separate lane branches off/converges
The read head can make the following direction decisions based on the lane and possible
branches:
•
Follow left-hand lane
•
Straight ahead
•
Follow right-hand lane
The direction decision is signaled to the read head via the controller. If there is no direction
decision, the read head displays an error message.