Chapter
10
Operating Instructions
CLV 45x Bar Code Scanner
10-40
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SICK AG · Division Auto Ident · Germany · All rights reserved
8 009 139/K949/06-06-2002
Appendix
10.9
Special applications and procedures
10.9.1
Triggering the Teach-in match code 1 via the "Sensor 2" switching input
In Reading mode, the CLV compares up to two match codes with the bar codes it recorded
in the reading pulse. In case of a corresponding function assignment the result status of the
code comparison is signaled via the "Result 1" and "Result 2" ("Result" LED) and the
beeper. The match codes can also be used as output filters for the host interface. In this
case, when a "Good Read" occurs, the CLV only outputs those bar codes that have the
same code type, code length, and data content as the match code(s). A match code can
have a max. of 50 characters from the range 32 ... 137 decimal and also originate from a
code type which evaluates the CLV.
By means of the "Sensor 2" switching output, the CLV can:
•
Teach in match code 1 via its optical interface (reading window) and store it permanent-
ly in the parameter record instead of entering it with the CLV-Setup user interface. The
code type, code length and data content are entered
•
Activate the code comparison. The status remains active until the supply voltage to the
CLV is switched off
In order to carry out the Teach-in, a switch must be connected in accordance with
, the functional assignment of the switching input changed, and Teach-in mode
selected.
There are two modes for teaching in match code 1:
•
Dynamic teaching-in of the match code 1
Possible with the SMART and the Standard decoder. The code type that corresponds
to the match code must be activated for the evaluation in the CLV. The CLV must be
pulsed manually so that it can read the match code. After the teach-in procedure has
been successfully completed, the CLV still continues to output bar codes of all the code
types that were previously enabled.
•
Static teaching-in of the match code 1 without/with Pharmacode
The CLV only uses the standard decoder temporarily during the teach-in. It also reads
a match code whose code type has been implemented but not enabled for evaluation.
A reading pulse starts automatically at the start of the teach-in procedure. The CLV
terminates the reading pulse once the teach-in procedure has been successfully com-
pleted. In Reading mode, it only outputs those bar codes that have the same code type
and length as match code 1.
Fig. 10-26: Wiring of the "Sensor 2" switching input for triggering the teach-in match code 1
CLV 450
Switch S
AMV 40-011/AMS 40-012, -013
terminal assignment
V
S
= +10 ... +30 V DC
*
) V
Imax
= 28 V!
