Leuze BCL 8 User manual

BCL 8
Bar code reader with integrated decoder
Original operating instructions
EN 2022-04-14 50127073
We reserve the right to make technical changes

Leuze electronic GmbH + Co. KG BCL 8 2
© 2022
Leuze electronic GmbH + Co. KG
In der Braike 1
D-73277 Owen / Germany
Phone: [phone]
Fax: [phone]
http://www.leuze.com
[email protected]

Leuze electronic GmbH + Co. KG BCL 8 3
1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Explanation of symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2 Declaration of Conformity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Foreseeable misuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Competent persons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.4 Exemption of liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5 Laser safety notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 The BCL 8 bar code reader . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2 Stand-alone operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3 Daisy chain network. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.1 General specifications BCL 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4.2 LED indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.3 Dimensioned and connection drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.4 Optical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.4.1 Type overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.4.2 Reading fields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5 Accessories/order codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.1 Accessories overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.2 MA 8.1 connection unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.2.1 Electrical connection MA 8.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.2.2 MA 8.1 - PWR IN HOST/RS232 - voltage supply and RS 232 . . . . . . . . . . . . . . . . . . . . . . . . . . 20
5.2.3 MA 8.1 - SW IN/OUT – switching input and switching output . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
5.2.4 MA 8.1 - BCL - connecting the BCL 8 to the MA 8.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
5.3 Connection unit MA 8-01 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
5.3.1 MA 8-01 - PWR IN HOST/RS485 - Voltage supply and RS 485 . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.3.2 MA 8-01 - SW IN/OUT - switching input and switching output . . . . . . . . . . . . . . . . . . . . . . . . . . 24
5.3.3 MA 8-01 - BCL - connecting the BCL 8 to the MA 8-01. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.3.4 Termination of the RS 485 interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
5.4 Mounting accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
6 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.1 Storage, transportation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.2 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
6.2.1 Device arrangement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.3 Connecting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.3.1 Connecting the BCL 8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.3.2 Connecting the switching input/output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.3.3 Cable lengths. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.4 Disassembling, packing, disposing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7 Commissioning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.1 Measures to be performed prior to the initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.2 Function Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.3 Setting the parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
7.3.1 Parameter sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Leuze electronic GmbH + Co. KG BCL 8 4
7.3.2 Service operating mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
8 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
8.1 Display elements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
8.2 Error handling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
9 Configuration and diagnostics software - Sensor Studio . . . . . . . . . . . . . . . . . . . . . . . 35
9.1 System requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
9.2 Installing Sensor Studio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.2.1 Downloading configuration software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.2.2 Installing the Sensor Studio FDT frame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.2.3 Installing communication DTM and device DTM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.2.4 Connecting device to PC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.3 Starting Sensor Studio. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
9.4 Exiting Sensor Studio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.5 Configuration parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.5.1 Decode tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.5.2 Output tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
9.5.3 Control tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
9.5.4 Host interface tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
9.5.5 Reference code tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
9.5.6 Switching input tab. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
9.5.7 Switch tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
9.6 Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
9.7 Firmware Reload . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
10 Starting up the device – Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
10.1 Measures to be performed prior to the initial commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
10.2 Starting the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
10.2.1 Power-on test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
10.2.2 Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
10.2.3 Online commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
10.2.4 Problems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
10.3 Starting up with factory settings. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
10.4 Setting the configuration parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
10.4.1 Service mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
10.4.2 Parameter sets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
11 Online commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
11.1 Overview of commands and parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
11.1.1 General online commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
11.1.2 Online commands for system control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
11.1.3 ’Online’ commands for parameter set operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
12 Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
12.1 General maintenance information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
12.2 Repairs, servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
12.3 Diagnostics and troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
12.4 Service and support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62
12.5 Example bar code label types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Leuze electronic GmbH + Co. KG BCL 8 5
Figure 2.1: Laser apertures, laser warning signs............................................................................................ 9
Figure 3.1: Device construction of the BCL 8 ............................................................................................... 10
Table 4.1: Technical data ............................................................................................................................ 12
Table 4.2: LED indicators ............................................................................................................................ 13
Figure 4.1: Dimensioned drawing BCL 8 S M …0, BCL 8 S N …0 with lateral beam exit............................ 14
Figure 4.2: Dimensioned drawing BCL8SM…2, BCL8SN…2 with front beam exit .............................. 15
Table 4.3: Type overview - M optics ............................................................................................................ 16
Table 4.4: Type overview - N optics ............................................................................................................ 16
Figure 4.3: Reading field of BCL 8 S M … with M optics (medium density) ................................................. 17
Figure 4.4: Reading field of BCL 8 S N … with N optics (high density) ........................................................ 17
Table 5.1: Accessories/order codes ............................................................................................................ 18
Figure 5.1: Photo and dimensioned drawing of the MA 8.1 connection unit................................................. 19
Figure 5.2: Electrical connection MA 8.1 ...................................................................................................... 20
Figure 5.3: MA 8.1 - Pin assignment PWR IN HOST/RS232........................................................................ 20
Figure 5.4: MA 8.1 - Pin assignment SW IN/OUT......................................................................................... 21
Figure 5.5: Connection of the switching input/output of the MA 8.1.............................................................. 21
Figure 5.6: MA 8.1 - Pin assignment BCL..................................................................................................... 22
Figure 5.7: Pin assignment - MA 8-01 .......................................................................................................... 23
Figure 5.8: MA 8-01 - Pin assignment PWR IN HOST/RS485 ..................................................................... 24
Figure 5.9: MA 8-01 - Pin assignment SW IN/OUT ...................................................................................... 24
Figure 5.10: Electrical connection MA 8-01 .................................................................................................... 25
Figure 5.11: MA 8-01 - Pin assignment BCL .................................................................................................. 25
Figure 5.12: Termination of the RS 485 interface in the MA 8-01................................................................... 26
Figure 5.13: Universal rod mounting system for BCL 8 .................................................................................. 26
Figure 6.1: BCL 8 device name plate............................................................................................................ 27
Figure 6.2: Definition of the BCL 8 reading angles ....................................................................................... 28
Figure 6.3: BCL 8 pin assignment................................................................................................................. 29
Table 6.1: Wiring description BCL 8 ............................................................................................................ 29
Figure 6.4: Switching input for BCL 8 connection version 1 (standard setting) ............................................ 30
Figure 6.5: Switching input for BCL 8 connection version 2 (setting "inverted") ........................................... 30
Figure 6.6: Switching output BCL 8 .............................................................................................................. 30
Table 6.2: Cable lengths.............................................................................................................................. 31
Figure 7.1: Bar code label "Service" ............................................................................................................. 33
Figure 7.2: Connecting the RS 232 interface to a PC or terminal................................................................. 33
Table 9.1: System requirements for
Sensor Studio installation ................................................................... 35
Figure 9.1: Device selection for the BCL 8 ................................................................................................... 37
Figure 9.2: Configuration project: Device manager for BCL 8 ......................................................................37
Figure 9.3: Decode tab ................................................................................................................................. 38
Figure 9.4: Standard settings of the Properties dialog box (SYMBOLOGY PROPERTIES) ........................ 39
Figure 9.5: Standard settings of the Properties dialog box (COMMON PROPERTIES)............................... 40
Figure 9.6:
Output tab (OUTPUT FORMAT)................................................................................................. 41
Figure 9.7: Properties dialog box (COMMON PROPERTIES)...................................................................... 42
Figure 9.8:
Control tab .................................................................................................................................. 43
Figure 9.9:
Host Interface tab ....................................................................................................................... 44
Figure 9.10: Standard settings of the Properties dialog box (FRAMING PROTOCOL)..................................44
Figure 9.11:
Reference Code tab.................................................................................................................... 45
Figure 9.12: Standard settings of the Properties dialog box (PROPERTIES) ................................................ 46
Figure 9.13:
Switching input tab...................................................................................................................... 46
Figure 9.14:
Switching output tab ................................................................................................................... 47
Figure 9.15:
Diagnosis tab .............................................................................................................................. 48
Figure 9.16: Firmware Reload ........................................................................................................................ 49
Figure 10.1: Bar code label "Service" ............................................................................................................. 52
Figure 12.1: Example bar code label types..................................................................................................... 63

General information
Leuze electronic GmbH + Co. KG BCL 8 6
1 General information
1.1 Explanation of symbols
The symbols used in this technical description are explained below.
1.2 Declaration of Conformity
The BCL 8 bar code reader and the optional MA 8.1 connection unit have been developed and produced
in accordance with the applicable European standards and directives.
The manufacturer of the product, Leuze electronic GmbH & Co. KG in D-73277 Owen, possesses a certi-
fied quality assurance system in accordance with ISO 9001.
ATTENTION!
This symbol precedes text messages which must strictly be observed. Failure to observe the
provided instructions could lead to personal injury or damage to equipment.
NOTE
This symbol indicates text passages containing important information.
NOTE
The corresponding declaration of conformity can be requested from the manufacturer.

Safety
Leuze electronic GmbH + Co. KG BCL 8 7
2 Safety
This sensor was developed, manufactured and tested in line with the applicable safety standards. It corre-
sponds to the state of the art.
2.1 Intended use
The BCL 8 bar code reader is designed as a stationary scanner with integrated decoder for all common
bar codes used for automatic object detection.
The optional MA 8.1 connection unit is intended for the easy connection of a bar code reader of type
BCL 8.
Areas of application
The BCL 8 bar code reader with optional MA 8.1 connection unit is designed especially for the following
fields of application:
• Labeling and packaging machines
• Automatic analyzers
• For space-critical bar code reading tasks
• Material flow
• Pharmaceutical industry
• Robotics and automation technology
CAUTION!
Observe intended use!
Only operate the device in accordance with its intended use.
The protection of personnel and the device cannot be guaranteed if the device is operated in
a manner not complying with its intended use.
Leuze electronic GmbH + Co. KG is not liable for damages caused by improper use.
Read the technical description before commissioning the device.
Knowledge of this technical description is an element of proper use.
NOTE
Comply with conditions and regulations!
Observe the locally applicable legal regulations and the rules of the employer's liability insur-
ance association.
ATTENTION!
For UL applications, use is only permitted in Class 2 circuits in accordance with the NEC
(National Electric Code).

Safety
Leuze electronic GmbH + Co. KG BCL 8 8
2.2 Foreseeable misuse
Any use other than that defined under "Intended use" or which goes beyond that use is considered
improper use.
In particular, use of the device is not permitted in the following cases:
• in rooms with explosive atmospheres
• as stand-alone safety component in accordance with the machinery directive 1)
• for medical purposes
2.3 Competent persons
Connection, mounting, commissioning and adjustment of the device must only be carried out by competent
persons.
Prerequisites for competent persons:
• They have a suitable technical education.
• They are familiar with the rules and regulations for occupational safety and safety at work.
• They are familiar with the technical description of the device.
• They have been instructed by the responsible person on the mounting and operation of the device.
Certified electricians
Electrical work must be carried out by a certified electrician.
Due to their technical training, knowledge and experience as well as their familiarity with relevant stan-
dards and regulations, certified electricians are able to perform work on electrical systems and indepen-
dently detect possible dangers.
In Germany, certified electricians must fulfill the requirements of accident-prevention regulations DGUV
V3 (e.g. electrician foreman). In other countries, there are respective regulations that must be observed.
2.4 Exemption of liability
Leuze electronic GmbH + Co. KG is not liable in the following cases:
• The device is not being used properly.
• Reasonably foreseeable misuse is not taken into account.
• Mounting and electrical connection are not properly performed.
• Changes (e.g., constructional) are made to the device.
2.5 Laser safety notices
1) Use as safety-related component within the safety function is possible, if the component combination is designed corre-
spondingly by the machine manufacturer.
NOTE
Do not modify or otherwise interfere with the device!
Do not carry out modifications or otherwise interfere with the device.
The device must not be tampered with and must not be changed in any way.
The device must not be opened. There are no user-serviceable parts inside.
Repairs must only be performed by Leuze electronic GmbH + Co. KG.
ATTENTION, LASER RADIATION – CLASS 1 LASER PRODUCT
The device satisfies the requirements of IEC/EN 60825-1:2014 safety regulations for a product
of laser class 1 and complies with 21 CFR 1040.10 except for conformance with IEC 60825-1
Ed. 3., as described in Laser Notice No. 56, dated May 8, 2019.
Observe the applicable statutory and local laser protection regulations.
The device must not be tampered with and must not be changed in any way.
There are no user-serviceable parts inside.
Repairs must only be performed by Leuze electronic GmbH + Co. KG.

Safety
Leuze electronic GmbH + Co. KG BCL 8 9
Figure 2.1: Laser apertures, laser warning signs
ALaser aperture
BLaser warning sign
A
B
A
B
BCL 8 S …2
BCL 8 S …0

Description
Leuze electronic GmbH + Co. KG BCL 8 10
3 Description
Device construction of the BCL 8
Figure 3.1: Device construction of the BCL 8
3.1 The BCL 8 bar code reader
The BCL 8 bar code reader is a laser scanner with integrated decoder for all commonly used bar codes,
e.g. 2/5 Interleaved, Code 39, Code 128, EAN etc., with an extremely small housing.
The many possible configurations of the device allow it to be adapted to a multitude of reading tasks. Due
to the small dimensions of the unit and its large reading field, the BCL 8 may also be used in highly
constrained spaces.
For information on technical data and characteristics, refer to Chapter 4.
3.2 Stand-alone operation
The BCL 8 bar code reader is operated as a "stand-alone" device. It is equipped with a 5-wire cable with
open ends or a 5-pin M12 connector for the electrical connection of the supply voltage, the interface and
the switching input.
With MA 8.1 connection unit
The MA 8.1 connection unit simplifies the electrical installation of the bar code reader in stand-alone oper-
ation with an RS 232 interface.
For details on the connection units, see Chapter 5.
With MA 8-01 connection unit
The MA 8-01 connection unit simplifies the electrical installation of the bar code reader in stand-alone
operation with an RS 485 interface.
For details on the connection units, see Chapter 5.
3.3 Daisy chain network
A daisy chain is a network based on the RS 232 interface. All devices, which consist of a transmitter and
a receiver, are connected to one another to form a ring. The transmitter of one device is directly connected
to the receiver of the next device until all devices are connected together to form a ring. One device
performs the task of the host system.
Reading window with
lateral beam exit
Two M4 mounting threads at the rear and bottom side of the device
M12 connector, turning or
cable, 2m
BCL8SMxx2
BCL8SNxx2
BCL8SMxx0
BCL8SNxx0
M12 connector, turning or
cable, 2m
Reading window with
front beam exit
Through holes
4.4 for fastening
Through holes
4.4 for fastening