Technical data
Leuze electronic GmbH + Co. KG
BCL 300
i
\ BCL 301
i
45
5.3.8 Dimensioned drawing of MA 100 terminal box
Figure 5.9: Dimensioned drawing of MA 100 terminal box
5.4
Reading field curves / optical data
5.4.1 Bar code characteristics
Figure 5.10: The most important characteristics of a bar code
The range in which the bar code can be read by the BCL 300
i
\ BCL 301
i
(the so-called reading field)
depends on the quality of the printed bar code and its dimensions.
Therefore, above all, the module of a bar code is decisive for the size of the reading field.
A
Green indicator diode (SW I/O)
B
S2 switch, termination ON/OFF
C
S1 switch, address setting via multiNet
D
JP8 jumper, address range 0 … 15 / 16 … 31
E
Connection BCL
F
Shielding connection
G
Terminal strip for the electrical connection
H
Contact surface for FE
NOTE
Please note that the size of the bar code module influences the maximum reading distance and
the width of the reading field. Therefore, when selecting a mounting location and/or the bar code
label, take into account the different reading characteristics of the scanner with various bar code
modules.
M
= Module: The narrowest line or space of a bar code in mm
Z
B
= Wide character: Wide bars and gaps are a multiple (ratio) of the module.
Module x Ratio = Z
B
(Normal Ratio 1 : 2.5)
B
Z
= Quiet zone: The quiet zone should be at least 10 times the module, but not less than 2.5mm.
L
= Code length: The length of the bar code in mm including the start and stop characters. The quiet zone is
included depending on the code definition.
S
L
= Bar length: height of the elements in mm
