Device description
Leuze electronic GmbH + Co. KG
BCL 248i
22
NET LED
Tab. 4.2:
NET indicators
Color
State
Description
---
OFF
No supply voltage
• No communication possible
• PROFINET-IO communication not initialized or inactive
Green
Flashing
Initialization of the device
Establishing communication
Continuous light
Operation ok
• Network mode ok
• Connection and communication to IO Controller (PLC) estab-
lished ("data exchange")
Orange
Flashing
Topology error
• Deviating target/actual topology detected
Red
Flashing
Communication error
• Parameterization or configuration failed ("parameter failure")
• IO error
• No data exchange
Continuous light
Network error
• No connection established
• No communication possible
LINK LED
Tab. 4.3:
LINK indicators
Color
State
Description
Green
Continuous light
Ethernet connected (LINK)
Yellow
Flashing
Data communication (ACT)
4.5
Reading techniques
4.5.1
Line scanner (single line)
The scan line scans the label. Due to the optical opening angle, the reading field width is dependent on the
read distance. Through the movement of the object, the entire bar code is automatically transported
through the scan line.
The integrated code reconstruction technology permits twisting of the bar code (tilt angle) within certain lim-
its. These are dependent on the transport speed, the scanning rate of the scanner and the bar code proper-
ties.
Areas of application of the line scanner
• With the bars of the bar code arranged lengthwise with respect to the conveying direction ("ladder ar-
rangement")
• With bar codes having very short bar lengths
• When the ladder code is turned out of the vertical position (tilt angle)