Chapter 4
Operating Instructions
ICR845-2 Image Code Reader
28
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SICK AG · Division Auto Ident · Germany · All rights reserved
8012377/ 0000/ 2008-01-30
Installation
The determination of the code position enables identical codes (code type, code length and
data contents) to be separated and the code data to be assigned to their position on the
object.
For 2D codes, the ICR845-2 determines the spatial position of the finder patterns in the im-
age buffer memory. It outputs its corner points in the shape of two-dimensional coordinates
in the reading result of the auxiliary interface as the "PT" reading diagnosis data (see
Chapter 1. Output of reading result on the auxiliary interface: 2D code (Data Matrix
ECC200), Page 76
.
For bar codes, the ICR845-2 determines the position of the first dark line of the start char-
acter in the image buffer memory. It outputs the value in the reading result of the auxiliary
interface as reading diagnosis data "CP" (see
Chapter 2. Output of reading result on the
auxiliary interface: Bar code, Page 78
).
When the ICR845-2 (Mid Range) is in the focus position (reading distance 115 mm
((4.53 in)), 1% of the CP is approx. 0.44 mm (0.017 in) lengthwise of the field of view.
Important
In the default setting, the ICR845-2 does not output the values "PT" or "CP" in the reading
result of the host interface. If this is required to evaluate the result in the host, the values
can be included in the "reading data" block of the output string using the CLV-Setup config-
uration software.
Fig. 4-7:
Count direction of the code position CP for bar codes along the reading window
100 %
0 %
CP
100 %
0 %
CP
