Chapter
6
Operating Instructions
CLV 490 Bar Code Scanner
6-2
©
SICK AG · Division Auto Ident · Germany · All rights reserved
8 008 796/0000/25-06-2002
Operation
6.2.1
Default settings of the line scanner CLV 490 (all variants)
6.2.2
Default settings of the line scanner with oscillating mirror
CLV 490 (all variants)
Default settings as for line scanner CLV 490, but with the following additional parameters:
Parameter
Default setting
Decoder
SMART/standard
Active codes types
Code 39, 2/5 Interleaved, Code 128
Code length
Freely assignable (2/5 Interleaved: interval 4 ... 50 characters)
Start/stop ratio
Automatic
Min./max. code position
5/ 95 CP
No. of multiple reads
3
Min./max. no. codes
1
Scanning frequency
800 Hz
Distance measurement
Active
Autofocus mode
Min. distance
Range
400 ... 2 200 mm
Scan angle
–27
°
... +27
°
Focus control trigger
Autofocus, switchover immediately (synchronously)
Reading pulse source
Start: "Sensor" switching input (active: high); end: "Sensor" switching input
"IN 0... IN 4" switching inputs
Focus position changeover (without meaning for autofocus function)
"Sensor" switching input
Start and end of reading pulse (level: active high), debouncing 20 ... 30 ms
Switching outputs
Not inverted; pulse duration: 100 ms
Status output function
Result 1: Device Ready (static); Result 2: Good Read; Result 3: No Read; Result 4: Match 1
CLV arrangement
Stand-alone
Read result output
Host interface
Device number
1
Start option
Load the parameter set of the external parameter memory
Host interface (type)
RS 422/485
Protocol
NAK; start character: STX, stop character: ETX
Transmission rate
9 600 bit/s
Data format
8 data bits, no parity, 1 stop bit
Output format
Header: blank, Separator: ST, Terminator: CR LF; Error string: separator only
Output sorting
In accordance with code position
Output time
Read result: end of the read interval
Separator: after code
Test string
Not activated
Terminal interface
RS 232, 9 600 bit/s, 8 data bits, no parity, 1 stop bit (values cannot be changed)
Function
Reading diagnosis
Table 6-1: Extract: Default parameter settings of the line scanner CLV 490-0010/-0011
Parameter
Default setting
Oscillating amplitude
±
40 CW (corresponds to an angle of deflection of –20
°
... +20
°
)
Operating mode
Oscillating with fixed amplitude, mode independent of reading pulse trigger
Oscillating frequency
1 Hz
Fixed position
50 CW (corresponds to an angle of deflection of 105
°
)
Table 6-2: Extract: Default parameter settings of the line scanner with oscillating mirror CLV 490
