SICK ICR880 - Page 25

Operating Instructions Chapter 3
ICR880/890
Product description
8011325/XL85/2013-08-20 © SICK AG · Germany · All rights reserved · Subject to change without notice 25
3.4.1 Reading configuration
The Camera detects 1D/2D codes line by line with the help of a CMOS line. The lines are
written successively and with a high frequency into an image storage. Continuous feeding
of the object on the conveyor system produces a two-dimensional image of the object.
Important The Camera System cannot recognize codes on stationary objects.
A moving 1D/2D code on an object is displayed as a grey level matrix in the image storage.
Contrast jumps are analyzed in order to scan the codes. The threshold value can be adapted
to the ambient conditions.
For more rapid analysis, the analysis area can be restricted to across the direction of trans-
port (code position).
The SOPAS-ET Configuration Software can, among other things, be used to configure fea-
tures, such as the code position and the symbol contrast:
P
ROJECT TREE, ICR880/890, PARAMETER, READING CONFIGURATION, register tab CODELABEL PROP-
ERTIES
Moreover, the image resolution across the direction of transport (digital zoom in dpi) and in
the direction of transport (dynamic scanning frequency in lpi) can be configured:
P
ROJECT TREE, ICR880/890, PARAMETER, READING CONFIGURATION, register tab DECODER
Fig. 3-5: Reading system diagram for single-side reading from above
Deflection mirror
Camera and
ICI890 Illumination
Direction of
transport
(Top view)
Conveyor system
Camera System
(camera, illumination
and deflection mirror)
Incremental encoder
VMS4xx/5xx
or MLG
Light Grid
Reading pulse
(start/stop)
Object
release
point
Reading area
Direction
of transport
Photoelectric
reflex switch
Object distance
MSC800
Controller
Object