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Operating Instructions
Chapter
10
CLV490 Bar Code Scanner
8009993/RA61/2007-07-20
©
SICK AG · Division Auto Ident · Germany · All rights reserved
10-69
Appendix
10.11 Special applications and procedures
10.11.1 Auxiliary input via auxiliary interface
If the CLV490 cannot read a bar code in Reading mode (e. g. if there is no bar code on the
object), the data content of the bar code can be sent subsequently to the host by using the
"Auxiliary input" function. In this way, the sequence of reading results can be completed if
necessary.
The auxiliary input function uses the auxiliary interface of the CLV490 exclusively and fea-
tures two options:
•
Manual entry of the data content on the keyboard of a connected terminal or PC
(Terminal Emulation function)
•
Entry of the bar code using a hand-held reader. The data is then forwarded to the
CLV490 via an internal or external decoder.
shows the basic auxiliary input principle.
The CLV490 sends the data content of the bar code that it receives via the auxiliary inter-
face to the host in the same format as the other reading results on the host interface. Each
string can contain the data from a bar code with a maximum length of 50 characters. The
CLV490 automatically enters the status ST = 7 if the error status has been enabled for
transmission. The values of the other reading diagnosis data in the data string do not have
any significance.
To enable the CLV490 to receive the data content of the bar code on the auxiliary interface,
you must switch the operating mode on the interface to auxiliary input.
1.
Connect the PC to the
auxiliary interface
on the CLV490 using a 3-core RS 232 data
cable (null modem cable) (CDB420 or CDM490: connect the PC to the internal 9-pin
"Aux" plug).
See
Chapter 5.5.6 Connecting the PC, Page 5-21
2.
Start CLV-Setup on your PC.
Chapter 10.6.3 Starting CLV-Setup, Page 10-46
3.
Choose the A
UXILIARY
I
NTERFACE
tab.
4.
Choose the A
UXILIARY
I
NPUT
option from the drop-down list.
5.
Download the changes to the CLV490.
To do so, click the A
UXILIARY
I
NPUT
option again with the right mouse button and choose
D
OWNLOAD
P
ARAMETER
in the context menu.
CLV-Setup copies the parameter to the CLV temporarily.
Fig. 10-56: Auxiliary input via the auxiliary interface of the CLV490
CLV
ST=7
HOST
Data co
Status
Data
contents
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