Datalogic DS2 Ethernet User manual

ORIGINAL INSTRUCTIONS (ref. 2006/42/EC)
Datalogic S.r.l.
Via S. Vitalino 13
40012 Calderara di Reno
Bologna - Italy
DS2 Ethernet Instruction Manual
Ed.: 12/2017
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15/12/17

CE Compliance
CE marking states the compliance of the product with essential requirements listed in the applicable
European directive. Since the directives and applicable standards are subject to continuous updates,
and since Datalogic promptly adopts these updates, therefore the EU declaration of conformity is a
living document. The EU declaration of conformity is available for competent authorities and customers
through Datalogic commercial reference contacts. Since April 20th, 2016 the main European directives
applicable to Datalogic products require inclusion of an adequate analysis and assessment of the
risk(s). This evaluation was carried out in relation to the applicable points of the standards listed in the
Declaration of Conformity. Datalogic products are mainly designed for integration purposes into more
complex systems. For this reason it is under the responsibility of the system integrator to do a new risk
assessment regarding the final installation.
Warning: This is a Class A product. In a domestic environment this product may cause radio
interference in which case the user may be required to take adequate measures.

INDEX
1. GENERAL INFORMATION.....................................................................................................................1
1.1. General description of the AREAscanTM light grid............................................................................1
1.2. Selecting the device.........................................................................................................................2
1.3. Typical applications..........................................................................................................................3
2INSTALLATION MODES ........................................................................................................................4
2.1. Precautions to be observed for the choice and installation of the device........................................4
2.2. General information on device positioning.......................................................................................4
2.2.1. Minimum installation distance................................................................................................4
2.2.2. Minimum distance from reflecting surfaces ...........................................................................5
2.2.3. Installation of several adjacent light grids..............................................................................6
3. MECHANICAL MOUNTING....................................................................................................................7
4. ELECTRICal connections......................................................................................................................8
4.1. Notes on connections.......................................................................................................................9
5. FUNCTIONING MODES........................................................................................................................10
5.1. Detection mode..............................................................................................................................10
5.2. Measurement mode .......................................................................................................................10
5.3. Transition detection (number of transitions)...................................................................................11
5.4. Notes on functioning mode ............................................................................................................11
5.5. Ethernet connection functioning.....................................................................................................11
6. FUNCTION AND PROGRAMMING SELECTION.................................................................................12
6.1. Remote programming.....................................................................................................................12
6.1.1. DS2 user interface –General information ...........................................................................13
6.1.2. Program installation.............................................................................................................13
6.1.3. Graphic user interface..........................................................................................................14
6.1.4. Connection with AREAscanTM DS2 series with Ethernet interface......................................14
6.1.5. Configuration of the AREAscanTM DS2 series with Ethernet interface................................16
6.1.6. Functions..............................................................................................................................20
6.1.7. Teach-in...............................................................................................................................23
6.1.8. File saving of the configuration options ...............................................................................26
6.1.9File loading of the configuration options ................................................................................27
7. AREAscanTM DS2 series –communication Protocol .......................................................................28
7.1. Packet description..........................................................................................................................28
7.1.1 Binary data packet structure................................................................................................28
7.1.2. Short protocol binary data packet structure.........................................................................28
7.1.3. ASCII data packet structure.................................................................................................28
7.2 Operating mode: DS2 (server) Host Interface (client)...............................................................29
7.2.1. Packet description................................................................................................................29
7.3. Configuration mode: DS2 (server) Host (client).........................................................................32
7.3.1 Host appropriation procedure of the bus .............................................................................32
7.3.2 Command packet description: .............................................................................................32
8. DIAGNOSTIC FUNCTIONS AND LED INTERFACE ERROR SIGNALLING......................................39
8.1. Device status visualization.............................................................................................................39
9. CHECKS AND PERIODICAL MAINTENANCE....................................................................................41
10.TECHNICAL DATA ...............................................................................................................................42
10.1. Response time.........................................................................................................................42
11.lIST OF AVAILABLE MODELS ............................................................................................................43
12.OVERALL DIMENSIONS......................................................................................................................43

Instruction Manual DS2 Ethernet
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1. GENERAL INFORMATION
1.1. General description of the AREAscanTM light grid
The AREAscanTM light grids are multibeam optoelectronic devices that can be used to detect objects,
including small and transparent targets as well as for measurement detection.
The variety of functions implemented make the DS2 a particularly flexible device that suits many
different applications.
The AREAscanTM light grids of the DS2 series are manufactured in accordance with the international
Standards in force and in particular:
CEI EN 60947-5-2: low voltage proximity devices
CEI EN 50319: proximity switches: requirements for proximity switches with analogue
output
The device, consisting of emitter and receiver units housed inside sturdy aluminium profiles, generates
infrared beams that detect any object positioned in the light grid’s detection field.
The command and control functions are inside the two units; the connections are made through M12
connectors located in the lower side of the profiles.
The synchronisation between the emitter and the receiver takes place via cable through direct
connection between the two units.
The control and management of the emitted and received beams are guaranteed by microprocessors.
The operator obtains information relative to the light grid status and error conditions through LEDs
located on the device and/or through the control interface of a remote PC.
Some parts or paragraphs of this manual, containing important information for the operator, are
proceeded by a note:
Notes and detailed descriptions about particular characteristics of the AREAscanTM devices have
been added to better explain functioning.
DATALOGIC Technical Support is available for questions related to the functioning and installation of
the DS2 series light grids and for any information and/or suggestions necessary for a correct
installation (see section 9 “Checks and periodical maintenance”).
AREAscanTM ARE NOT safety devices; the use of the device for safety purposes and operator
safeguarding is not conform and dangerous.

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1.2. Selecting the device
The selection of the correct device version is linked to the detection area needed, which is considered
as the sensitive area height of the device as well as to the maximum operating distance, considered
as the distance between the emitter unit (TX) and receiver unit (RX) and optics interaxis.
Versions are available:
Operating distance
Detection field
interaxis
DS2-05-07-060-JE
5m
84 beams; h=600mm
6.75mm
DS2-05-07-075-JE
5m
105 beams; h=750mm
6.75mm
DS2-05-07-090-JE
5m
126 beams; h=900mm
6.75mm
DS2-05-07-120-JE
5m
168 beams; h=1200mm
6.75mm
DS2-05-07-150-JE
5m
210 beams; h=1500mm
6.75mm
DS2-05-07-165-JE
5m
231 beams; h=1650mm
6.75mm
The functions characterising the DS2 AREAscanTM light grids are available on all the versions that
consequently have the same operating modes.
The specific technical characteristics (e.g. resolution, sensitivity etc) remain the same for all the
versions, until differently indicated.
For food industry applications, please verify with DATALOGIC Technical Support the compatibility of
the materials of the light grid shell with the eventual chemical agents that are used in the production
process.

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1.3. Typical applications
The following images supply an overview on some main applications.
Object detection and measurement on conveyor belt
Control of the correct material positioning (opaque and transparent)
during functioning (plastic, metal, paper etc)
Loop control and positioning (also transparent material)
Detection of objects with different shapes in the food industry
Detection of objects in different positions (parallel beams)
Detection of slots and holes in different positions

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2 INSTALLATION MODES
2.1. Precautions to be observed for the choice and installation of the device
The dimension of the smallest object to be detected should not to be lower than the resolution level of
the device.
The DS2 should be installed in a place compatible with the technical characteristics (see section 10
“Technical Data”) of the AREAscanTM light grids.
Other considerations:
- avoid installation near very intense and/or flashing light sources, in particular near the receiver
unit.
- strong electromagnetic interference can compromise the correct functioning of the device. Please
contact DATALOGIC Technical Service when this problem occurs.
- the operating distance of the device can be reduced in the presence of smog, fog or airborne
dust.
-a sudden change in environment temperature, with very low minimum peaks, can generate a
small condensation layer on the lenses and jeopardise functioning.
-relevant variations of the power supply can reduce the operating distance of the device.
2.2. General information on device positioning
Place the device near the detection area.
Align the receiver (RX) and emitter (TX) units in order that they are the most parallel possible.
Verify that the green receiver LED is on (stability condition), otherwise slight adjustments of both
units have to be made in order to reach the stability position.
Fix the receiver and emitter units on rigid supports not conditioned by strong vibrations using
specific fixing brackets (see section 3 “Mechanical mounting”)
Check that the distance between the receiver and emitter units is within the device operating
distance (see section 10 “Technical data”)
2.2.1.Minimum installation distance
The minimum installation distance corresponds to the minimum operating distance = 0.3 m.

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2.2.2.Minimum distance from reflecting surfaces
Reflecting surfaces placed near light beams of the AREAscanTM device (over, under or laterally)
may cause passive reflections that can compromise the detection of an object inside the controlled
area (see Fig.1).
Fig. 1
However, the object may not be detected if the receiver detects a secondary beam (reflected by the
side-reflecting surface), even if the entering object interrupts the main beam.
It is thus important to position the units at the correct distance from any reflecting surface:
The minimum distance depends on:
-device operating distance
-reflecting surface nature
-position of the object inside the sensitive area
It is necessary to evaluate this distance on the field according to the operating conditions; however
a minimum distance from the reflecting surface of about 0.5 m is suggested.

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2.2.3.Installation of several adjacent light grids
When several devices must be installed in adjacent areas, it is necessary to prevent the
interference between the emitter of one device and the receiver of another.
Fig.2 provides an installation example of possible interference between different devices and two
possible solutions.
Fig. 2
NO
YES
YES

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Fig. 3
3. MECHANICAL MOUNTING
The emitter and receiver units have to be mounted with the relevant sensitive
surfaces facing each other. The connectors must be positioned on the same
side and with the operating distance of the model used (see section 10
“Technical data”).
The two units must be aligned and parallel as much as possible.
To mount the device, insert the threaded pins supplied (see Fig.3) in the slots
present on the two units.
Depending on the particular application and/or type of support, the operator
can use the fixing pins or the rigid fixing brackets supplied to mount the two
units (see Fig.4).
Fig. 4
Rigid fixing brackets can be used where no big mechanical corrections are required during the
alignment operation.
Rotating supports for the correction of the unit inclination of ±1° on the medial transversal axis and of
±5° on the longitudinal axis, are available on request.
In applications with particularly strong vibrations, the use of anti-vibration shock absorbers able to
reduce the impact of vibrations together with threaded pins, rigid brackets and/or rotating supports are
recommended.

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4. ELECTRICAL CONNECTIONS
The electrical connection between the emitting and receiving units is made through a male M12
connector located in the lower part of the light grid.
RICEIVER (RX)
1
2
3
4
RX+
TX+
TX-
RX-
1 = white = AUX 2
2 = brown = +VDC
3 = green = ANALOGUE OUT
4 = yellow = SWITCHING OUTPUT
5 = grey = OUT HOLD / OUT ENABLE
6 = pink = AUX 1
7 = blue = GND
8 = red = SYNC
1 = brown = RX +
2 = white = TX -
3 = blue = RX -
4 = black = TX +
EMITTER (TX)
3
4
2
1
NOT USED
GND
+VDC
SYNC
1 = brown = +VDC
2 = white = NOT USED
3 = blue = GND
4 = black = SYNC
1
7
6
5
4
3
2
8
SWITCHING OUTPUT
ANALOGUE OUTPUT
+ VDC
SYNC
GND
AUX 2
AUX 1
OUTPUT HOLD /
OUTPUT ENABLE

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4.1. Notes on connections
The following precautions regarding electrical connections have to be respected for the correct
functioning of the AREAscanTM light grid.
Shielded cables are not foreseen in the standard connection.
However, if necessary, these cables can be used in presence of ground connection of both the unit
and cable, as shown in Fig.5.
Fig. 5
In any case, these cables must not be placed in contact with or near any high voltage cables (e.g.
motor power supplies, inverters, etc) that, generating strong electromagnetic fields, can
compromise the correct functioning of the device.
Ground connection of the two units is not necessary. However, if required, the connection is
possible tightening the specific screw supplied instead of one of the 8 screws that lock the heads of
each unit (see Fig.6).
Follow the connection illustrated in Fig.5 when ground connection of the entire system is used.
Fig. 6
External
power supply
Ground
connection

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5. FUNCTIONING MODES
The DS2 light grids detect and measure objects placed inside the detection area. Hence, beam
interruptions can cause the switching of the digital output and the variation of the analogue output
signal.
Small objects (up to 12 mm) detection and geometrical measurements determined with approximately 6
mm resolution can be obtained by setting the device according to the different functioning modes.
Beam scanning is sequential and the update of all the outputs is made at each scanning, within a period
equal to the device response time.
5.1. Detection mode
The detection mode is activated whenever at least one beam is interrupted inside the detection area.
The activation causes the digital output switching (signalled by the powering of the yellow LED).
The DS2 presents many different functions, listed below, that condition the switching output:
Switching Output Mode: indicates if electrical current passes through switching output; the output
can be normally closed (N.C.) or normally open (N.O.).
Switching Output Delay: delays the re-setting of the switching output after detection. The delay
time can be selected.
Acquisition and detection (Teach-in): allows a conditioned detection of the object inside the
detection area: if the object corresponds (without resolution) to the object detected during the Teach-
in phase, the output switches. On the contrary nothing happens. The following modes can be set:
- absolute Teach-in detection: the output switches only if the previously set object is re-detected
in the same position.
- relative Teach-in detection: the output switches only if the previously set object (without
resolution) is re-detected, independently from the position in the sensing area.
5.2. Measurement mode
The measurement mode depends on the number of interrupted beams and causes the switching of
the analogue output (and also of the digital output).
The DS2 presents many different measurement functions, listed here below:
Absolute measurements: measurement is obtained considering the first photoelement (1) as the
reference beam beginning from the connector side. The DS2 light grid has in particular the following
functions:
1. top beam: provides the measurement between the reference beam and the obscured beam
furthest away from the reference
2. bottom beam: provides the measurement from the reference beam and the obscured beam
closest to the reference
3. middle beam: provides the measurement of the beam corresponding to the medium point
between the obscured beam furthest away from the reference and the obscured beam closest to
the reference
Relative measurements: measurement is obtained not considering absolute references. The
measurement depends on the number of obscured beams. The DS2 light grid has in particular the
following functions:
4. total beams: supplies the measurement corresponding to the total number of obscured beams
5. total contiguous beams: supplies the measurement corresponding to the maximum number of
contiguous beams obscured

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5.3. Transition detection (number of transitions)
The transition detection counts the number of transitions in the detection area. The number of
transition increases each time that an object is detected inside the detection area and decreases each
time the objects remain outside (transition light->dark).
5.4. Notes on functioning mode
The DS2 light grids can configure the beam reference status, specifically selecting it from the user
interface. The default selection is “dark beam”, but the operator can select the complementary
situation i.e. “light beam”.
Not all the functions can be selected using dip-switches. Please refer to the following tables to
discover the local programmability of the device.
The analogue voltage value is supplied, in these cases, without direct correspondence, as
indicated in the tables found in page 12, 24 and 26.
The formula to determine the voltage is obtained with the following syntax:
VOUT =VRES* NBEAM [xxx ; yyy]
Where VOUT = voltage value of the analogue output
VRES = 10V/total n° of beams of the device = Voltage value corresponding to the
minimum resolution (obtained obscuring only one beam)
NBEAM [xxx ; yyy] = Number of beams belonging to the group [XY]
(i.e. between “xxx” beam and “yyy” beam)
Please note that the longer DS2 is, the less conditioning is VRES. In the worst case VRES = 43 mV !
(using the DS2 165 model)
5.5. Ethernet connection functioning
Output data updating is usually made at the end of each scanning cycle. This conditions enormously the
response time of the DS2 light grid, as it is depends data structure and information detail that has to be
transmitted. Some serial configuration commands have been added to make the device flexible to different
applications. The remote user interface completely controls these commands.
Transmission standard selection: Function allows the operator to choose data structure; it is possible to
choose ASCII or Binary data. Partial transmission is preferred for applications where time factors are
important. Further partial transmission is short protocol which transmission is purely binary and extremely
fast. Function is enable for single measure only. For data transmission details please see “Communication
protocol” section of the user manual.
Data sending mode selection: function allows the operator to choose when to send the data.
The sending can also be inhibited by a specific selection (via “software”, using the specific command, via
“hardware” programming the output enable input –pin 5 RX connector –using the user interface). The
sending mode selection can be reached only via remote control. Four options can be selected: data
sending at each machine cycle which is the default setting, data sending at each output status
change, data sending at analogue output value change, user sending request, using the interface
command button. This last condition can be requested also by an external command previously
programming the device (per details please see section 7 “Communication protocol”).

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6. FUNCTION AND PROGRAMMING SELECTION
The functions implemented in the AREAscanTM DS2 light grids can be selected via remote.
The default configurations are given below:
Default configuration for emitter unit
The device is supplied with the maximum emission adjustment setting
(minimum sensitivity)
Sensitivity adjustment
Sensitivity adjustment is made using the trimmer located inside the
emitter unit lid. This function allows the operator to change the emitter
intensity.
With regard to the programmation and the selectable functions, refer to following paragraphs.
6.1. Remote programming
The function programming and selection is made using an user interface on a remote host, which
communicates with DS2 using the standard RS232 serial interface.
The interface can be found in the CD supplied with the device packet.
N.B.: DS2 device fix in memory the last setting configuration from remote user interface. At the
first interface startup, DS2 set it self following the factory configuration which is
eventually restoring by appropriate push-button “RESTORE”.
Fig. 7

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6.1.1.DS2 user interface –General information
The DS2ETH user interface is a Windows program, compatible with 9x/SE/Me/NT/2000/XP/Vista
versions, that controls the scanning trend and the digital output status of the DS2 AREAscanTM light
grids with Ethernet interface (or simply DS2ETH).
Thanks to the easy and intuitive user interface, the different configuration parameters of the light
grid, stored in the non-volatile device memory, can be visualised and modified.
Ethernet interface present in DS2ETH supplies a pattern concerning the projection of an object on
the receiver in terms of received light (object absence) or received darkness (object presence). This
pattern contains the binary information concerning each single beam (Complete Beams Status
Array). The position of a beam can be obtained from the weight of single beams and the state from
its value “0” or “1”. A bit “0” indicates a not obscured beam and a bit “1” indicates an obscured
beam. At the end of every scanning a new data frame is sent.
It’s also possible to receive a partial information about the scanning by means of one or two
numerical measures:
Top Beam (darkness or light)
Bottom Beam (darkness or light)
Middle Beam (darkness or light)
Total Beam (darkness or light)
Total Contiguous Beam (darkness or light)
Number of the Transitions (darkness or light)
How many and what measures will be transmitted depends on how it’s programmed. It’s possible to
freely select one or two measures between those listed before. The only limit is that the same
measure will not be able to be requested twice. These data can be transmitted in binary or ASCII.
The communication protocol foresees the presence of a client unit and a server unit. The
information exchange takes place in a request-reply mode: the client sends a data frame to the
server and the server answers with another data frame to the client.
6.1.2.Program installation
Insert the CD of the DS2 Host Interface software in the PC reader.
The installation program will begin automatically. Simply follow the indications provided.

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6.1.3.Graphic user interface
The following window will be visualised at program initialisation:
Fig. 8
Two important areas are distinguished: the data control area on the left (graph representing light
grid with scanning area, Teach-in status indicated on a measurement bar, a panel with luminous
indicators and dip-switch status, various digital indicators for measurement visualisation and a
communication status bar) and the function selection area on the right. On the top we can find the
typical Windows menu.
6.1.4.Connection with AREAscanTM DS2 series with Ethernet interface
After the PC and the DS2ETH are powered on and connected as indicated in the following schema,
the program is ready to work. It is possible to connect several devices to the same network.
Fig. 9
See the section Configuration with AREAscanTM DS2 series with Ethernet interface for network
settings.

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Press the button Discover or digit the IP address manually, then press Connect.
After that, a message Waiting for connection will be shown.
If the link did not succeed the following window will be shown:
Check the electric connections and the correct operation of the light grid.
After the connection the graphic on the left side will show:
the beams and the form of the object
the TEACH-IN stored in the receiver
two indicators with the measures ( what represent depends on the programming mode)
The bars which represent the light grid will automatically resize themselves on the basis of the
beam number. At this point the button Configure becomes active and the button Connect becomes
Disconnect.
Fig. 10