Datalogic DS2 Ethernet Instruction 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
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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
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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
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INDEX
1. GENERAL INFORMATION ..................................................................................................................... 1
1.1. General description of the AREAscan
TM
light grid ............................................................................ 1
1.2. Selecting the device ......................................................................................................................... 2
1.3. Typical applications .......................................................................................................................... 3
2 INSTALLATION 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 AREAscan
TM
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 AREAscan
TM
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
Instruction Manual DS2 Ethernet
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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 AREAscan
TM
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 Teachin 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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