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Operating Instructions
Chapter
6
CLV 490 Bar Code Scanner
8 009 993/O824/20-12-2004
©
SICK AG · Division Auto Ident · Germany · All rights reserved
6-31
Operation
B. CLV integrated in OTS 400 Omni Tracking System
(mechanical construction called "reading gate")
B1. Start/stop mode
Conditions:
•
One object
in the reading field per reading interval
Example: Omni-directional 2-side reading with CLVs (slaves) und OTC 400 Controller
(master)
•
Minimum object distance > size of reading field
(size of reading field = distance between sensor for start and stop of reading trigger)
•
Autofocus/focus position switchover in the CLV according to application:
– with OTS height information via CAN bus for reading from top
– one distance configuration (fixed focus) for e. g. reading from side and sufficient
depth of field (DOF)
•
Autofocus mode "Minimum distance" or "Differential background",
see
•
Two reading sensors connected to OTC 400 (start and stop)
•
Height detection photo reflex switches connected to OTC 400 (optional)
•
Master/slave arrangement using the CAN interface
Possible reading triggers in the CLV:
•
OTS trigger
Further preparations for each CLV:
¾
Configuring reading area: see
Chapter a)Parameterizing reading area, Page 6-10
.
¾
Selecting focus control mode: see
Chapter b) Selecting focus control mode,
.
¾
Configuring focus control: see
Chapter c) Parameterizing focus control, Page 6-12
.
¾
Configuring oscillating mirror (optional): see
Chapter e) Parameterizing oscillation mirror
functions (optional), Page 6-18
.
¾
Configuring no. of bar codes to be read: see
Chapter h) Parameterizing the evaluation
.
Note
To separate bar codes of the same type with identical contents, connect an incremental
encoder and activate the "Compare Code Position" function. See also
Parameterizing focus control in the CLV:
Action
Settings in CLV-Setup
Use distance information of
OTC 400 (master) or other CLV
–
or
–
Ö
R
EADING
CONFIGURATION
tab
Ö
F
OCUS
C
ONTROL
section
– OTS height information
Select and parameterize
autofocus function
or
–
Table 6-14: Guide: Parameterizing focus control in CLV for master/slaves arrangement with
OTC 400