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PGV*-F213-B16-1.5M-*
Installation
Behavior of the Read Head at Branches and Curves
The read head behaves differently depending on the type of branch and the specified lane. The
read head must know the upcoming direction decision.
•
A second lane branches off to the left from the straight lane:
» The read head follows the straight lane if the direction decision "follow right-hand lane"
has been made.
•
A second lane branches off to the right from the straight lane:
» The read head follows the straight lane if the direction decision "follow left-hand lane"
has been made.
•
A single lane with a position code turns to the left or right:
» The read head follows the position code if the direction decision "straight ahead" has
been made.
Note
Loss of Information
Ensure that Data Matrix codes are not positioned over one another at a branch, as otherwise
data may be lost.
Control codes can be mounted in the immediate vicinity of a branch with Data Matrix codes for
positioning, but not near an intersection. The control code must be mounted directly next to the
guiding lane.
Figure 3.7
Note
End of the selected lane
If the currently selected lane ends and there is a second lane in the field of view, the read head
will automatically follow the second lane.
18
Branch with control code
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