Chapter 10
Operating Instructions
ICR845-2 Image Code Reader
126
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Appendix
10.2
Settings for reading Data Matrix ECC200
The parameter values for reading are selected in the default setting of the ICR845-2 in such
a way that the largest possible bandwidth is covered by applications.
If reading with the parameter values of the default setting is not successful, appropriate ad-
justments can be made to improve the image quality in the ICR845-2 (before decoding) in
accordance with
Chapter 10.2.1 Improving the image quality, Page 127
.
To optimize the reading characteristics, especially for time-critical applications, the evalua-
tion parameters can be further restricted in accordance with
Chapter 10.2.2 Optimizing
reading characteristics, Page 129
. This accelerates the output of the reading result in the
"immediate" output mode, as the decoder requires less computation time
For all changes to the parameter set using CLV-Setup, proceed as follows:
1.
Change parameter value(s) as desired.
2.
Download to the ICR845-2 with the T
EMPORARY
save option.
3.
Repeat reading with modified parameter value(s).
4.
Change additional parameter values if necessary.
5.
If reading is successful, download to the ICR845-2 with the P
ERMANENT
save option.
Important
We recommend to check the content of the image memory (ICR845-2) using ImageFTP.
See also
Chapter 6.4 The image transfer program ImageFTP, Page 58
.
The adjustments cover the following settings (initial status: default settings):
Improving the image quality:
a) Properties of the code layout
b) Illumination mode
Optimizing the reading characteristics
a) Minimum and maximum cell size
b) Setting the symbol size
c) Code properties
d) Minimum code contrast
e) Image geometry
f) Resolution