Chapter
6
Operating instructions
ICR 84x Image Code Reader
6-34
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SICK AG · Division Auto Ident · Germany · All rights reserved
8 010 961/0000/10-05-2005
Operation
6.5.2
Percentage Evaluation
In Percentage Evaluation mode, the quality of the reading of codes which are brought
statically into the reading area of the ICR is assessed (no conveyor movement).
The ICR performs 100 scans in the Free running mode and evaluates the reading quality. It
outputs the reading result continuously every 2 s via the
auxiliary interface
. The reading
results can be displayed in the Terminal Emulator of CLV Setup. The "Result 1" and "Result
2" switching outputs do not become live in the Percentage evaluation mode.
The data communication of the
auxiliary interface
can also be routed via the Ethernet
interface. The physical auxiliary interface (RS 232) will then become disabled. See
Chapter 5.5.6 “Connecting the Ethernet interface“, Page 5-10
Only the standard decoder must be set temporarily for the percentage evaluation (activated
in the default setting).
The Percentage Evaluation mode can be called up by choosing V
IEW
in the menu bar or via
the Terminal Emulator.
1.
Select the C
ODE
C
ONFIGURATION
tab.
2.
Click the S
TANDARD
radio button in the 1D-S
YMBOLOGIES
/1D-D
ECODER
group.
3.
Perform a download to the ICR.
To do so, click the S
TANDARD
option again with the right mouse button and choose
D
OWNLOAD
P
ARAMETER
in the context menu.
CLV Setup copies the parameter temporary to the ICR.
The ICR then uses the standard decoder (until the ICR is switched off).
4.
Click
in the toolbar.
The Terminal Emulator window is then displayed.
5.
Click P
ERCENT
E
VALUATION
under D
EVICE
M
ODE
.
The “Device Ready“ LED is extinguished. The red illumination field (pulsed) appears
repeatedly all 2 s.
The ICR initiates the percentage evaluation and outputs the reading results
continuously. An example is shown in
.
6.
Represent the 2-D code sample from
or the bar code sample from
in the reading area (no conveyor movement during reading!).
Reading distances:
ICR 840 (standard type): 80 mm (3.15 in) for side/front reading window. Available
reading area size at this reading distance: 40 mm x 32 mm (1.58 in x 1.26 in).
7.
Monitor the reading results in the window of the Terminal Emulator.
The behavior of the “Result“ LED also indicates the reading quality:
– LED is extinguished if reading quality is < 30 %
– LED flashes twice per second if the reading quality is 30 % to 70 %
– LED flashes five times per second if the reading quality is 70 % to 90 %
– LED is lit continuously if the reading quality is > 90 %