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General Information
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Technical description BCL 90
11
T
N
T 35/
7-
24V
Reading cycle
Cycle applied externally to the BCL to trigger the internal
scan gate time
, by way of, for example, a
retro-reflective photo electric sensor or as a result of a command from the host via the serial interface.
Reading field height
The length of the
scan line
available for the detection of the bar code on the read level. The length
depends on the read distance due to the V principle.
Result status output
Function of the four switched outputs "SWO 1 … SWO 4" in read mode. The signals indicate the status
of the read results, but without displaying its content (e.g. Good Read). The display of the LED "Read
Result" is controlled by the output of "SWO 2".
Scan gate time
Time window in which the BCL activates the laser diode and attempts to detect valid bar codes from
the information read. Depending on the selected output mode of the read result, the scan gate time
may be shorter than the externally applied reading cycle.
Scan line
See line scanner.
Separator
Data block in the read result of the
host interface
. It serves as separating unit between the data con-
tents of the bar codes. It can either precede or follow the bar codes. It contains, depending on config-
uration, read diagnosis data and/or constants (e.g. alphabets).
Service interface
Auxiliary interface (RS 232) of the BCL with predefined data output format. It is always possible to ac-
cess the BCL from the PC program BCL-Config via this interface.
Specification diagrams
Diagrams for determining the resolution-dependent depth of field range (DOF) with a predefined focus
position.
Standard decoder
Successfully tried and tested
decoder
of the product series BCL. This device is recommended when
the bar codes have sufficient code heights, small tilt and good print for reading.
Switching sequence
Function for event-driven focus position switching. Sequence of the focus positions to be adjusted one
after the other with the corresponding depths of field. For this purpose, the numbering of the active
distance configurations
is entered in the cross-reference list in the desired position.
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