Leuze
electronic
General Information
Leuze electronic
Technical description BCL 90
9
T
N
T 35/
7-
24V
Header
Data block in the read result of the
host interface
. It serves as header in the
data output string
for sub-
sequent data contents of the bar codes. It contains, depending on configuration, read diagnosis data
and/or constants (e.g. alphabets). In its basic setting, it is empty.
Host interface
Main data interface of the BCL with configurable data output format. The host interface serves, among
others, to output the
read result
in telegram form to the host/PLC. It is used to integrate the BCL in the
Leuze network or build up a stand-alone system. It offers various transmission protocols.
Increment management
In the BCL for certain applications, it serves to unambiguously distinguish between bar codes which
have identical contents and move during the read process.
Leuze multiNet plus
Special, powerful combination of a maximum of 32 BCLs with high data transmission rates via the RS
485 interface. Co-ordination (polling) and connection of the BCLs to the host by means of the network
master MA 31.
Line scanner with oscillating mirror
Line scanner that additionally deflects its laser beam across the scanning direction to the two sides of
a centre position by means of an oscillating mirror. In this way, the BCL can also search larger areas
and spaces for bar codes. For the search, optimizable functional sequences of the oscillating mirror
are also possible (variable deflection for each distance configuration, One-shot) beside the simple de-
flection at maximum oscillation amplitude.
Line scanner
Scanner deflecting its focussed laser beam by way of a polygon mirror wheel with parallel-axis mirrors
at an extremely high speed. In this way, it generates a light dot on the read level running back and
forth on a line, and due to its relative inertia, appearing to the human eye as a "static" scan line.
Multiple reading
Selectable number of reads that has to supply identical internal read results (data contents) from ex-
actly the same bar code before the BCL outputs the read result.
No Read format
Special, parameterizable data block replacing every expected and not detected bar code in the data
output string of the host interface for a
No Read
. The format consists of a selectable combination of
the error string and
separator
.
No Read
In the concluded
reading cycle
, the BCL neither detected any bar code nor the required number of bar
codes given by the evaluation conditions set in the parameters.
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