Leuze BCL34, Техническое описание

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PROFIBUS
56 BCL 34 Leuze electronic
8.3.7 Pharmacode Properties
Module 10
The module defines additional properties of the code type Pharmacode.
As a matter of principle, the parameters described in the following should be changed only
if you are familiar with the characteristics of the Pharmacode, as incorrect settings may
cause a misinterpretation of barcodes. The difficulty is that the bar widths of the narrow and
wide bars used in the Pharmacode are not defined as fixed widths, but feature a relatively
high tolerance range. This means that even within a barcode, deviations may occur, e.g.,
when wide bars of different widths are used.
Parameters
Input Data
none
Output Data
none
Parameter Description Rel.
addr.
Data
type
Value Range Default Unit CR to
module
Bar width
ratio
The parameter specifies the minimum width ratio
between wide and narrow bars of the code type Phar-
macode.
A standard value of 185 means that a wide bar must be
1.85 times wider than a narrow bar.
0 … 255 185 * 0.01
GPa,
1 … 4a
Verification
of bar widths
The parameter specifies the minimum ratio of bar and
gap width for the code type Pharmacode.
A standard value of 75 for wide bars means that a wide
bar must be 0.75 times wider than a gap.
0 : Off
1 … 255
75 * 0.01
Bar width
distance
The parameters specifies the size of the safety distance
in per cent in the width value of narrow and wide bars.
At a standard value for the verification of bar width of 75
(see above) and a bar width distance of 5, a wide bar
must be at least 0.8 times as wide as a gap, and a nar-
row bar must be not more than 0.7 times as wide.
0 … 255 5 * 0.01
Gap width
ratio
The parameter specifies the maximum width relation-
ship between wide and narrow gaps of the code type
Pharmacode. I.e, this is the maximum possible deviation
of the gaps that can occur.
0 … 255 3 * 0.01
Reading
direction
The parameter specifies the reading direction for the
decoding 0: Normal
1: Inverse
0 –
Parameter length: 5 bytes
a
b
c
d
e