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Chapter
6
Operating Instructions
CLV490 Bar Code Scanner
6-54
©
SICK AG · Division Auto Ident · Germany · All rights reserved
8009993/RA61/2007-07-20
Operation
6.5.9
Reading diagnosis
Function of the
auxiliary interface
. In this mode, the CLV490 outputs the data contents of
all the bar codes that were read – including those that, according to the evaluation criteria,
were not read properly and were thus incorrect – together with the associated reading
diagnosis data via the auxiliary interface. The number of bar codes output can, therefore, be
higher than the number of those that were sent via the host interface in the reading result.
In the default setting, this mode is selected for the auxiliary interface.
shows the output format of the auxiliary interface.
In the default setting, the CLV490 does not output any reading diagnosis data via the host
interface.
If the reading diagnosis is to remain inactive, this can be set via the A
UXILIARY
I
NTERFACE
tab.
1.
In the A
UXILIARY
I
NTERFACE
drop-down list, choose R
EAD
D
IAGNOSTICS
.
2.
Perform a download to the CLV490 by clicking
in the toolbar.
The D
OWNLOAD
P
ARAMETERS
dialog box is then displayed.
3.
Choose the P
ERMANENT
storage option in the dialog box.
The auxiliary interface is now set to the "Read Diagnostics" mode.
6.5.10
Monitor Host Interface
Function of the
auxiliary interface
. In this mode, the CLV490 outputs the data traffic of its
host interface via the auxiliary interface. Protocol driver handshakes and protocol-specific
data, such as start and stop characters, are suppressed here. Each data string is displayed
on a separate line on the screen. Two monitoring modes are available that differ with regard
to the data output format (
The M
ONITOR
H
OST
I
NTERFACE
or M
ONITOR
H
OST
I
NTERFACE
2 function is activated via the
A
UXILIARY
I
NTERFACE
tab.
1.
In the A
UXILIARY
I
NTERFACE
drop-down list, choose M
ONITOR
H
OST
I
NTERFACE
or M
ONITOR
H
OST
I
NTERFACE
2.
2.
Perform a download to the CLV490.
To do so, click the desired option in the list again with the right mouse button and
choose D
OWNLOAD
P
ARAMETER
in the context menu.
CLV-Setup copies the parameter to the CLV490 temporarily.
The auxiliary interface then operates in the choosed "Monitor Host Interface" mode until
the CLV490 is switched off again.
Note
On good read, the CLV490 only outputs the number of read bar codes being defined for
maximum on the C
ODE
CONFIGURATION
tab, in the N
UMBER
OF
C
ODES
section.
Mode
Direction of data
Output format
Representation on screen
"Monitoring host interface"
CLV490 receives from host
CLV490 sends to host
<STX>
I
Data <CR> <LF> <ETX>
<STX>
O
Data <CR> <LF> <ETX>
I Data
O Data
"Monitoring host interface 2"
CLV490 receives from host
CLV490 sends to host
<STX> Data <ETX>
<STX> Data <ETX>
Data
Data
Table 6-25: "Monitor Host Interface" function
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