Pepperl+Fuchs Visolux VB12 User manual

FACTORY AUTOMATION
Manual
Barcode Scanner VB12

With regard to the supply of products, the current issue of the following document is applicable:
The General Terms of Delivery for Products and Services of the Electrical Industry, as published by
the Central Association of the "Elektrotechnik und Elektroindustrie (ZVEI) e.V.",
including the supplementary clause "Extended reservation of title".
We at Pepperl+Fuchs recognise a duty to make a contribution to the future.
For this reason, this printed matter is produced on paper bleached without the use of chlorine.

Barcode Scanner VB12
Table of contents
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ubject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany
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epperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
Date of issue 03.12.2001
1
Table of contents
1 Declaration of conformity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
2 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
3 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
3.1 Laser safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.2 Standard regulations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.3 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Product description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
4.1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.2 General views . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.3 Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.4 LED indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.5 Available models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
5.1 Package contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.2 Quick guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
5.3 Mechanical installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.3.1 General notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
5.3.2 Reading position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.3.3 Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.4 Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.4.1 Power supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.4.2 Main serial interface - RS 485 half-duplex . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.4.3 Auxiliary interface - RS 232 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.4.4 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5.4.5 Outputs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5.5 Typical layouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.5.1 Point-to-point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
5.5.2 RS 485 master/slave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6 Reading features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
6.1 Step ladder mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.2 Picket fence mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.3 Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.4 Raster . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.5 Reading diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.5.1 VB12-220 standard resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6.5.2 VB12-110 high resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
8 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Barcode Scanner VB12
Declaration of conformity
S
ubject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany
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epperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
Date of issue 30.01.2002
2
1 Declaration of conformity
The VB12 scanner and all its models have been developed and produced in
accordance with the applicable European standards and directives.
EN 55022, August 1994: Limits and methods of measurements of radio distur-
bance characteristics of information technology equip-
ment (ITE),
EN 50082-2, March 1995: Electromagnetic compatibility. Generic Immunity Stan-
dard Part 2: Industrial environment,
89/336 CEE and successive amendments,
92/31 CEE,
93/68 CEE.
Pepperl+Fuchs GmbH in D-68301 Mannheim possesses a certified quality assurance
system in accordance with ISO 9001.
A corresponding declaration of conformity can be requested from the
manufacturer.
ISO9001

Barcode Scanner VB12
General information
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ubject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany
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epperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
Date of issue 30.01.2002
3
2 General information
This symbol warns the user of possible danger. Failure to heed this
warning can lead to personal injury or death and/or damage to
equipment.
This symbol warns the user of a possible failure. Failure to heed this
warning can lead to total failure of the equipment or any other
connected equipment.
This symbol gives the user important hints.

Barcode Scanner VB12
Safety
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ubject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany
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epperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
Date of issue 15.02.2002
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3 Safety
3.1 Laser safety
The following information is provided to comply with the rules imposed by
international authorities and refers to the correct use of the VB12 scanner.
3.2 Standard regulations
This scanner utilizes a low-power laser diode. Although staring directly at the laser
beam momentarily causes no known biological damage, avoid staring at the beam as
one would with any very strong light source, such as the sun. Avoid that the laser
beam hits the eye of an observer, even through reflective surfaces such as mirrors,
etc.
This product conforms to the applicable requirements of both IEC 825-1 and
CDRH 21 CFR 1040 at the date of manufacture. The scanner is classified as a
Class 2 laser product according to IEC 825-1 regulations and as a Class II laser
product according to CDRH regulations.
There is a safety device which allows the laser to be switched on only if the motor is
rotating above the threshold for its correct scanning speed.
The laser light is visible to the human eye and is emitted from the window on the front
of the scanner (see section 4.2, figure 4.1, pos. 1).
The laser beam can be switched off through a software command (see
also "Beam Shutter" in the VisoSetup Help On Line).
Use of controls or adjustments or performance of procedures other than
those specified herein may result in exposure to hazardous visible laser
light.

Barcode Scanner VB12
Safety
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epperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
Date of issue 15.02.2002
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The warning label indicating exposure to laser light and the device classification is
applied onto the body of the scanner (figure 3.1 and figure 3.2).
Figure 3.1 Warning and device class label
For installation, use and maintenance it is not necessary to open the scanner.
The laser diode used in this device is classified as a Class 3B laser product according
to IEC 825-1 regulations and as a Class IIIb laser product according to CDRH
regulations. As it is not possible to apply a classification label on the laser diode used
in this device, the following label is reproduced here:
Figure 3.2 Laser diode class label
Any violation of the optic parts in particular can cause radiation up to the maximum
level of the laser diode (7 mW at 630 nm to 680 nm).
3.3 Power supply
This device is intended to be supplied by a UL Listed Power Unit with "Class 2" or LPS
power source which supplies power directly to the scanner via the 25-pin connector.
POWER ON
EXT TRIG
LASER ON
GOOD READ
TX DATA
LISTED
ACCESSORY
45AF
I.T.E.
RR
+
-
  




 


 









 

 











  !
  
 
LASER LIGHT
AVOID EXPOSURE TO BEAM
CLASS 3B LASER PRODUCT
MAX. OUTPUT RADIATION 7 mW
EMITTED WAVE LENGTH 630~680 nm
TO IEC 825-1 (1993)

Barcode Scanner VB12
Product description
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ubject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany
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epperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
Date of issue 15.02.2002
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4 Product description
4.1 Introduction
The VB12 scanner with decoder offers one of the best cost-effective solutions for
demanding industrial applications.
The VB12 ultra compact dimensions, based on VISOLUX’s experience in
miniaturised laser components, have been specifically designed to make the
scanner's integration into automated equipment extremely easy.
The Windows-based user-friendly VisoSetup utility program provided on CD-ROM
simplifies the scanner’s setup. The VB12 scanner can also be configured from a Host
PC through the Host Mode procedure.
4.2 General views
Figure 4.1 Scanner VB12 - General view
1 Laser Beam Output Window 5 Ext. Trigger-LED
2 TX Data-LED 6 Power-ON LED
3 Good Read-LED 7 Laser Warning and Device
Class Label
4 Laser ON-LED 8 Mounting Holes

Barcode Scanner VB12
Product description
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4.3 Description
Some of the main features of VB12 are listed below:
• miniaturised dimensions, light weight.
• scanning speed: 350 scans/s
• raster version available.
• 2 serial communication interfaces: RS 232 and RS 485.
• reads all popular codes.
• supply voltage: 10 V DC ... 30 V DC,
• test mode to verify the reading features and exact positioning of the scanner
without the need for external tools.
• programmable in 4 different operating modes to suit the most various barcode rea-
ding system requirements.
• code verifier.
• programmable input and output signals.
• light source: visible laser diode; the light emitted has a wave length of
630 nm ... 680 nm. For laser safety precautions refer to the ”Safety Precautions”
section at the beginning of this manual.
• low power consumption.
• IP65 protection class of the enclosure; the reader is therefore suitable for industrial
environments where high protection against harsh external conditions is required.
The laser beam output window is on the side of the scanner in VB12-ooo models
and on the upper part of the scanner in VB12-ooo-S models, (figure 4.1, pos. 1). A
security system allows the laser to activate only once the motor has reached the
correct rotational speed; consequently, the laser beam is generated after a slight
delay from the power on of the scanner.
4.4 LED indicators
The five LEDs on the scanner indicate the following:
The screw holes on the body of the reader are for mechanical fixture (see figure 4.1,
pos. 8).
POWER ON (red) indicates the reader is connected to the power supply
(see figure 4.1, pos. 6)
GOOD READ (red) is used to signal the possibility of a successful barcode
reading (see figure 4.1, pos. 3)
EXT. TRIG. (yellow) indicates external trigger activity (see figure 4.1, pos.
5)
TX DATA (green). When blinking, it indicates data transmission (see
figure 4.1, pos. 2)
LASER ON (green) indicates laser ON state
(see figure 4.1, pos. 4)

Barcode Scanner VB12
Product description
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ubject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany
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epperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
Date of issue 15.02.2002
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4.5 Available models
The VB12 scanner is available in versions that differ in regard to the following
parameters:
• Resolution.
• Reading window position.
• Line or raster models.
The following models are therefore available:
If the last position of the key ("Reading Window Position") is blank, the laser beam
output window is located on the side of the scanner.
VB12–
ooo –o–o
Beam pattern
RRaster version
Reading Window Position
SLight exit rotated by 90°
Max. Reading Distance
110 110 mm, high resolution
220 220 mm, standard resolution

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Date of issue 15.02.2002
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5 Installation
5.1 Package contents
Verify that the VB12 scanner and all the parts supplied with the equipment are present
and intact when opening the packaging
The list of parts includes:
1. VB12 scanner with cable
2. Mounting kit: bracket, screws.
With your order the following items are included:
CD-ROM containing operating manual, configuration tool VisoSetup, and bar code
test chart.
Figure 5.1 VB12 package contents
If the equipment has been subjected to extreme temperature
fluctuations during transport, it must be allowed to acclimatise
(approx. 2 hours) before being installed and put into operation. Always
avoid condensation forming in or on the unit as this could result in
internal components being impaired or indeed irreparably damaged.
1
2

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5.2 Quick guide
The following can be used as a checklist to verify all of the steps necessary for
complete installation of the VB12 scanner.
1. Read all information in section 3 "Safety” at the beginning of this manual.
2. Correctly position and mount the scanner for barcode reading according to the
information in section 5.3 and 6.5.
3. Provide correct system cabling according to the signals necessary for your ap-
plication (see all sub-paragraphs in section 5.4). See also sub-paragraphs in
section 5.5 for reference.
4. Install the configuration CD-ROM.
See also the Guide To Rapid Configuration link.
Specific parameter details are available in the Help On Line
The installation is now complete.
Fine tuning of the scanner position for barcode reading can be
accomplished using the Test Mode as described in VisoSetup

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Date of issue 15.02.2002
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5.3 Mechanical installation
5.3.1 General notes
The VB12 scanner can be installed to operate in any position.
There are three screw holes (M3 x 5) on the body of the reader for mounting. The
diagram below gives all the information required for installation. For correct
positioning of the scanner with respect to the code passage zone see section 5.3.3.
Figure 5.2 Scanner VB12 - Dimensions
Figure 5.3 Scanner VB12 - Mounting bracket
M3
80
64.3 4
4
7.7
6
61
22.5
15.4
50 A
B
VB12
18

Barcode Scanner VB12
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Date of issue 15.02.2002
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5.3.2 Reading position
In VB12-ooo-S scanner the laser beam is emitted from the output window with a
12 (± 2°) skew angle. This allows installation with minimum overall dimensions.
Figure 5.4 Reading position
5.3.3 Positioning
The VB12 scanner is able to decode barcode labels at a variety of angles, however
significant angular distortion may degrade reading performance. When mounting the
VB12 take into consideration these three ideal label position angles:
Pitch 0°, Skew 15° to 30° and Tilt 0°.
VB12
VB12--S
Version:
Light exit rotated by 90˚
VB12-
Version:
Direct reading
window position
Laser
beam
Laser
beam

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Follow the suggestions for the best orientation:
The Pitch angle is represented by the
value Pin figure 5.5.
Position the reader in order to minimise
the Pitch angle.
Figure 5.5 Pitch angle
The Skew angle is represented by the
value Sin figure 5.6. Position the reader
to assure about 15° for the Skew angle.
This avoids the direct reflection of the
laser light emitted by the VB12 scanner.
For the raster version, this angle refers
to the most inclined or external raster
line, so that all other raster lines assure
more than 15° Skew.
For the skew angle value with VB12
90° versions, refer to section 5.3.2.
Figure 5.6 Skew angle
The Tilt angle is represented by the
value Tin figure 5.7. Position the reader
in order to minimise theTilt angle.
Figure 5.7 Tilt angle

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5.4 Electrical connections
The VB12 cable is equipped with a 25-pin female D-sub connector for connection with
the power supply and input/output signals:
Figure 5.8 25-pin female D-sub connector
* Pins 1 and 25 are connected together internally.
5.4.1 Power supply
The following pins of VB12 connector are used
Figure 5.9 Power supply connections
The power must be 10 V DC to 30 V DC only.
25-pin D-Sub-Socket Pinout
Pin Name Function
9, 13 10 ... 30 V DC Power supply input voltage +
25 GND Power supply input voltage -
1 * CHASSIS Chassis Ground
2, 21 TX232 TX RS 232 Aux. Interface
3, 20 RX232 RX RS 232 Aux. Interface
4 RTX485- RTX- RS 485 Main Interface
5 RTX485+ RTX+ RS 485 Main Interface
7 SGND (GND) Signal Ground
8 OUT1+ Output 1 +
11 OUT2+ Output 2 +
18 EXT. TRIG.+ External trigger +
19 EXT. TRIG.- External trigger -
10, 12, 22 GND Input/Output reference (Mass)
17 IN 1- Input 1 -
6, 14, 15, 16, 23, 24 NC Not connected
13/9
25
GND
1
CHASSIS
USER INTERFACE
GND
10 V DC ... 30 V DC
VB12

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5.4.2 Main serial interface - RS 485 half-duplex
The RS 485 half-duplex interface (3 wires + screen) is used for polled communication
protocols.
It can be used for multidrop connections in a master/slave layout.
The connector pinout follows:
Figure 5.10 RS485 half-duplex connections
5.4.3 Auxiliary interface - RS 232
The auxiliary serial interface is used exclusively for RS 232 point-to-point
connections. It is also used for configuring the VB12 scanner.
Pin Name Function
5 RTX485+ RS 485 transmitted/received data +
4 RTX485- RS 485 transmitted/received data -
7 SGND Signal ground
For this interface type, the multidrop address must also be set via serial
channel by the VisoSetup utility or by ESC sequences.
The parameters relative to the auxiliary interface (baud rate, data bits,
etc.) can be defined using the VisoSetup utility program.
5
4
7
RS485 Ref
USER INTERFACE
VB12
RTX485 -
RTX485 +
SGND
RTX485 -
RTX485 +

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The following pins of the 25-pin connector are used to connect the RS 232 auxiliary
interface:
Figure 5.11 RS 232 auxiliary interface connections
5.4.4 Inputs
The inputs available on the connector supplied with the scanner are indicated below:
The yellow LED (see section 4.2, figure 4.1, pos. 5) is on when external trigger forces
a current flow through the EXT TRIG+ and EXT TRIG- pins. This input is optocoupled
and can be driven by both an NPN or PNP type command. The connections are
indicated in the following diagrams (figure 5.12 to figure 5.15):
Figure 5.12 Input NPN command using external power
Pin Name Function
3, 20 RX232 Received data
2, 21 TX232 Transmitted data
7 SGND (GND) Signal ground
Pin Name Function
18 EXT. TRIG.+ External Trigger +
19 EXT. TRIG.- External Trigger -
22 GND I/O reference
The EXT TRIG input is used to connect the external trigger which tells
the scanner to scan for a code. The active state of this input is selected
in software. Refer to the VisoSetup Help On Line.
3/20
2/21
7
USER INTERFACE
VB12
RXD
SGND
RXAUX
TXAUX
TXD
SGND
EXT TRIG+
18
19
+ 5V
V
B12
EXTERNA
L
TRIGGER
Si
g
nal
V
3
0 V DC max.
Vext
EXT TRIG-

Barcode Scanner VB12
Installation
S
ubject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany
P
epperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
Date of issue 15.02.2002
17
Figure 5.13 Input NPN command using scanner power
Figure 5.14 Input PNP command using external power
Figure 5.15 Input PNP command using scanner power
The general purpose input IN1, in the Standard Application Program, can be used to
store the code verifier (see ”Store Verifier Hw” in the VisoSetup Help On Line).
Figure 5.16 IN1- Input command
EXTERNAL TRIGGER
V
B12
Si
g
nal
18
19
+ 5V
VS
9
25 GND Ground
V
EXT TRIG+
EXT TRIG-
18
19
+ 5V
VB12
V
Signal
EXT TRIG+
EXT TRIG-
30 V DC max.
Vext
EXTERNAL TRIGGER
Ground
EXTERNAL TRIGGERVB12
18
19
+ 5V
VS
9
25 GND Ground
V
Signal
EXT TRIG+
EXT TRIG-
13/9
1
VS
IN1 -
22 GND
USER INTERFACE
Ground
V
VB12
47 K

Barcode Scanner VB12
Installation
S
ubject to reasonable modifications due to technical advances. Copyright Pepperl+Fuchs, Printed in Germany
P
epperl+Fuchs Group • Tel.: Germany (06 21) 7 76-0 • USA (330) 4 25 35 55 • Singapore 7 79 90 91 • Internet http://www.pepperl-fuchs.com
Date of issue 15.02.2002
18
An anti-disturbance hardware filter is implemented on the external trigger input (about
1 millisecond delay).
5.4.5 Outputs
The following pins are present on the connector of the scanner:
By default, OUT1 is associated with the NO READ event, which activates when the
code signalled by the external trigger is not decoded, and OUT2 is associated with
the Right event, which activates when the code is correctly decoded.
Figure 5.17 VB12 Output connections
An additional 15 ms (typical) delay can be implemented through a
dedicated software parameter (refer to VisoSetup Help On Line).
Pin Name Function
8 OUT1+ Output 1 +
12 GND I/O reference
11 OUT2+ Output 2 +
22 GND I/O reference
The meaning of the two outputs OUT1 and OUT2 can be defined by the
user (NO READ, Right or Wrong). Refer to the VisoSetup Help On Line.
These outputs are both level or pulse configurable.
USER INTERFACE
Vext 50 V DC max., 50 mA max.
VB12
8/11
12/22
OUT 1 + / OUT 2 +
Ground