Leuze electronic DDLS 508 User manual

DDLS 508
Optical Data Transmission for 100 Mbit/s Ethernet – Version F0
Original operating instructions
EN 2016/02 - 50130082 We reserve the right to make technical changes

Leuze electronic DDLS 508 3
1 About this document . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Used symbols and signal words . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Foreseeable misuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Competent persons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 Exemption of liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.5 Laser safety notices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3 Device description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1 Device overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1.1 General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1.2 Performance characteristics and delivery options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1.3 Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1.4 Operating principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.2 Connection technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3 Indicators and operational controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3.1 Indicators and operational controls in the control panel . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3.3.2 Indicators in the optics area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
3.3.3 Indicators in the connection area. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.1 Mounting instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.2 Mounting with alignment laser and level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2.1 Horizontal mounting (travel axis) with the alignment laser . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2.2 Vertical mounting (lifting axis) with the alignment laser. . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.3 Mounting without alignment laser . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.3.1 Horizontal mounting (travel axis) without alignment laser . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.3.2 Vertical mounting (lifting axis) without alignment laser . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.4 Mounting tolerances of the devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.5 Mounting distance for parallel operation of data transmission systems for devices
with frequency F0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
4.6 Mounting distance for parallel operation with AMS 300/AMS 200 laser measurement
systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.7 Mounting distance for parallel operation with DDLS 200 data transmission system . . . . . 34
4.8 Cascading (series connection) of multiple data transmission systems . . . . . . . . . . . . . . . 34
5 Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
5.2 POWER (supply voltage / switching input and switching output) . . . . . . . . . . . . . . . . . . . 35
5.3 BUS (bus input, Ethernet) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
6 Starting up the device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.1 Setting the operating mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
6.2 Fine adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.2.1 General procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
6.2.2 Fine adjustment with the single-handed adjustment (SHA) process . . . . . . . . . . . . . . . . . 43
6.2.3 Fine adjustment without the single-handed adjustment (SHA) process . . . . . . . . . . . . . . 44
7 Diagnostics and troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7.1 Error displays of the operating state LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
7.2 Error displays and STATUS LED for remote diagnosis. . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Leuze electronic DDLS 508 4
7.3 Error displays of the operating mode LEDs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
8 Care, maintenance and disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
8.1 Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
8.2 Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
8.3 Disposing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
9 Service and support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
9.1 What to do should servicing be required? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
10 Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
10.1 General specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
10.1.1Device without heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
10.1.2Device with heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
10.2 Dimensioned drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
10.3 Dimensioned drawings: Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
11 Ordering information and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
11.1 Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
11.2 Cables accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
11.3 Other accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
12 EC Declaration of Conformity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

About this document
Leuze electronic DDLS 508 5
1 About this document
1.1 Used symbols and signal words
Table 1.1: Warning symbols and signal words
Table 1.2: Other symbols
Table 1.3: Terms and abbreviations
Symbol indicating dangers to persons
Symbol indicating dangers from harmful laser radiation
NOTICE Signal word for property damage
Indicates dangers that may result in property damage if the measures for
danger avoidance are not followed.
Symbol for tips
Text passages with this symbol provide you with further information.
Symbols for action steps
Text passages with this symbol instruct you to perform actions.
DDLS Digitale Datenlichtschranke; optical transceiver for digital data transmission
EN European standard
FE Functional earth
IO or I/O Input/Output
MAC address Media Access Control address; hardware address of a device in the network
NEC National Electric Code; safety standard for electrical installations in the U.S.A.
PELV Protective Extra-Low Voltage; protective extra-low voltage with reliable discon-
nection
HBS High-bay storage device
SHA Single-Handed Adjustment; fine adjustment of the devices by one person
TCP/IP Transmission Control Protocol/Internet Protocol; Internet protocol family
UDP User Datagram Protocol; user data segment protocol
UL Underwriters Laboratories

Safety
Leuze electronic DDLS 508 6
2 Safety
This optical data transmission system was developed, manufactured and tested in line with the applicable
safety standards. It corresponds to the state of the art.
2.1 Intended use
Devices of the DDLS 500 series have been designed and developed for the optical transmission of data
in the infrared range.
Areas of application
Devices of the DDLS 500 series are designed for the following areas of application:
• Data transmission between stationary and/or moving devices. The devices must – with respect to the
transmission beam spread - be positioned opposite one another without interruption. A data trans-
mission path consists of two identical devices which are designated with “Frequency F0” on the
name plate.
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
• for medical purposes
2.3 Competent persons
Connection, mounting, commissioning and adjustment of the device must only be carried out by competent
persons.
For information about possible restrictions regarding the transmission of special protocols see
chapter 3.1.2.
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 these original operating instructions before commissioning the device.
Knowledge of the original operating instructions is an element of proper use.
NOTICE
Comply with conditions and regulations!
Observe the locally applicable legal regulations and the rules of the employer's liability insurance asso-
ciation.
NOTICE
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.

Safety
Leuze electronic DDLS 508 7
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 original operating instructions 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 BGV A3
(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
Laser diode of the transmitter – laser class 1M
The device emits invisible laser radiation at a wavelength of 785 nm through the laser aperture of the
optical window. The opening angle of the beam cone is ≤ 1° (± 0.5°).
The power density distribution in the light spot is homogeneous; there is no elevation of power density in
the center of the light spot. The average emitted laser power of the device is < 12 mW. For transmission
of the data, the emitted laser radiation is amplitude modulated (on-off keying). Pulses and pulse pauses
of the emitted laser light are between 8 ns and 32 ns long. The laser power emitted during the pulses is
< 24 mW.
ATTENTION, INVISIBLE LASER RADIATION – LASER CLASS 1M
Never observe directly using telescope optics!
The device fulfills the IEC 60825-1:2007 (EN 60825-1:2007) requirements for a product in laser class 1M
as well as the U.S. 21 CFR 1040.10 regulations with deviations corresponding to “Laser Notice No. 50”
from June 24th, 2007.
Looking into the beam path for extended periods using telescope optics may damage the eye's retina.
Never look using telescope optics into the laser beam or in the direction of reflecting beams.
CAUTION! The use of operating or adjusting devices other than those specified here or carrying out
of differing procedures may lead to dangerous exposure to radiation.
The use of optical instruments or devices (e.g., magnifying glasses, binoculars) with the product will
increase eye danger.
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 the device.
Repairs must only be performed by Leuze electronic GmbH + Co. KG.

Safety
Leuze electronic DDLS 508 8
1 Laser aperture – alignment laser
2 Laser aperture – transmitter
3 Laser warning sign
Figure 2.1: Laser apertures
Figure 2.2: Laser warning and laser information signs for devices with frequency F0
1
2
3
UNSICHTBARE LASERSTRAHLUNG
Nicht direkt mit Teleskopoptiken betrachten!
LASER KLASSE 1M
DIN EN 60825-1:2008-05
Max. Leistung (peak):
Impulsdauer:
Wellenlänge:
RADIAZIONE LASER INVISIBILE
Non guardare direttamente con ottiche telescopiche!
APARRECCHIO LASER DI CLASSE 1M
EN 60825-1:2007
Potenza max. (peak):
Durata dell'impulso:
Lunghezza d'onda:
< 36 mW
32
n s
785 nm
< 36 mW
32 n s
785 nm
INVISIBLE LASER RADIATION
Never observe directly using telescope optics!
CLASS 1M LASER PRODUCT
EN 60825-1:2007
Maximum Output (peak):
Pulse duration:
Wavelength:
RAYONNEMENT LASER INVISIBLE
Ne pas regarder directement avec des optiques télescopiques !
APPAREIL À LASER DE CLASSE 1M
EN 60825-1:2007
Puissance max. (crête):
Durée d`impulse:
Longueur d`ande émis:
< 36 mW
32
n s
785 nm
< 36 mW
32 n s
785 nm
RADIACIÓN LÁSER INVISIBLE
¡No mirar directamente con ópticas telescópicas!
PRODUCTO LÁSER DE CLASE 1M
EN 60825-1:2007
Potencia máx. (peak):
Duración del impulso:
Longitud de onda:
RADIACAO LASER INVISIVEL
Não olhe diretamente para as óticas telescópicas!
EQUIPAMENTO LASER CLASSE 1M
EN 60825-1:2007
Potência máx. (peak):
Período de pulso:
Comprimento de onda:
< 36 mW
32
n s
785 nm
< 36 mW
32 n s
785 nm
INVISIBLE LASER RADIATION
Never observe directly using telescope optics!
CLASS 1M LASER PRODUCT
IEC 60825-1:2007
Complies with 21 CFR 1040.10
Maximum Output (avg):
Pulse duration:
Wavelength:
⺞㉒匘䧋䦚ₜⒿ䤓䉏⏘⺓兎
䰐㷱抩扖㦪扫柫屑䦚᧝
1M伊䉏⏘ℶ❐
GB7247.1-2001
㦏⮶戢⒉᧤⽿⋋᧥
厘⑁㖐兼㢅梃
㽱栎
< 36 mW
32
n s
785 nm
< 36 mW
32
n s
785 nm

Safety
Leuze electronic DDLS 508 9
Alignment laser (optional) – laser class 1
ATTENTION, LASER RADIATION – LASER CLASS 1
The alignment laser fulfills the IEC 60825-1:2007 (EN 60825-1:2007) requirements for a product in laser
class 1 as well as the U.S. 21 CFR 1040.10 regulations with deviations corresponding to “Laser Notice
No. 50” from June 24th, 2007.
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 the device.
Repairs must only be performed by Leuze electronic GmbH + Co. KG.
Devices with integrated alignment laser can be identified by part number code L in the part desi-
gnation, e.g., DDLS 5xx XXX.0 L.
Laser class 1M also applies for devices with integrated alignment laser.

Device description
Leuze electronic DDLS 508 10
3 Device description
3.1 Device overview
3.1.1 General information
The DDLS 508 optical data transmission system transmits Ethernet network data on the basis of TCP/IP
or UDP transparently and without contact or wear via infrared light.
A MAC address or IP address configuration is not necessary.
A transmission path consists of two mutually opposing identical devices.
Both devices are identical in construction and have identical type designation and part numbers.
1 Device housing
2 Mounting plate
3 Planar surface for supporting a bubble level or alignment straightedge
4 Receiver optics
5 Transmitter optics
6 Alignment laser for mounting support (optional)
7 LED indicators in the control panel
8 Display of the preselected transmission frequency F1 or F2
9 Connection area
10 Operating mode selector switch
11 Alignment screw for vertical alignment
12 Alignment screw for horizontal alignment
13 STATUS LED for remote diagnosis
14 Supporting edge for bubble level or alignment straightedge
15 Ethernet connection, M12
16 POWER connection, M12
17 Spirit level (for devices with alignment laser)
Figure 3.1: Device construction
2
17
10
14
4
5
13
12
3
6
8
1
11
9
16
15
7

Device description
Leuze electronic DDLS 508 11
3.1.2 Performance characteristics and delivery options
• Protocol-independent data transmission of all TCP/IP and UDP protocols, e.g.
• EtherCat (with restrictions on functions “Link Fault Pass Through” and “Distributed Clock”)
• PROFINET RT
• EthernetIP (Rockwell)
• … and more
• Data transmission over a range of up to 120 m
• Optional alignment laser including spirit level for mounting support
• Planar surfaces on top and side for supporting a level or alignment straightedge
• Single-handed adjustment (SHA) for aligning the devices by one person
• Optional variants with integrated heating for operating temperatures below -5 °C
Use to -35 °C
• Transmission optics with larger beam spread on request
3.1.3 Accessories
For exact details and order information, see chapter 11 "Ordering information and accessories".
• Adapter plate for installing instead of a DDLS 200
• Ready-made cable for M12 connections
• Customizable connector plug
3.1.4 Operating principle
Two identical devices are used to establish a data transmission path.
• Both devices with frequency F0
• Part designation: DDLS 5XX xxx.0 YY
• Designation on the name plate: Frequency F0
Figure 3.2: Name plate
The PROFINET IRT protocol is a special case. The DDLS 508 cannot satisfy the specifications
of the transmission criteria for PROFINET IRT.
For details on the delay times or the jitter-relevant device data, see chapter 4.8 "Cascading (se-
ries connection) of multiple data transmission systems".
NOTICE
Selecting transmission frequency F1 or F2!
For a given transmission path, the devices must be set to different transmission frequencies during
commissioning.
Transmission frequency F1 or F2 is configured with the operating mode selector switch [Mode] via the
FRE LED (see chapter 6.1 "Setting the operating mode").
The transmission path is correctly configured if the FRE LED on one device illuminates and does not
illuminate on the opposing device.

Device description
Leuze electronic DDLS 508 12
1 Device with frequency F0 (DDLS 5XX xxx.0 YY)
2 Frequency F0
3 Frequency F0
Figure 3.3: Optical data transmission system with two devices “Frequency F0”
The received signal level (SIGNAL QUALITY) is measured on both devices. If the received signal level
drops below a certain value (SIGNAL QUALITY indicator shows only red and orange), the intensity
warning is activated.
The intensity warning is applied on switching output IO1 of the POWER connection.
3.2 Connection technology
A-coded, M12 connection for the supply voltage with integrated switching input and output.
D-coded, M12 connection for the Ethernet connection.
3.3 Indicators and operational controls
3.3.1 Indicators and operational controls in the control panel
Operating mode selector switch and operating mode indicator
• Operating mode selector switch [MODE]
The operating mode selector switch is used to switch between the operating modes of the device
(see chapter 6 "Starting up the device").
• Operating mode LEDs AUT, MAN, ADJ, LAS, LLC, FRE
The operating mode LEDs indicate the active operating mode.
1 AUT – Automatic
2 MAN – Manual
3 ADJ – Adjust
4 LAS – Alignment laser for mounting support
5 LLC – Link Loss Counter
6 MODE – Operating mode selector switch
7 FRE - Indicates the preselected transmission frequency
Figure 3.4: Operating mode LEDs and operating mode selector switch
11
23
4 57
12 63

Device description
Leuze electronic DDLS 508 13
Table 3.1: Meaning of the operating mode indicators
Operating state indicator
The PWR, TMP, LSR, OLK, ERL and LINK LEDs indicate the operating state of the device.
LED Color State Description
AUT Green Continuous
light
AUT operating mode (Automatic) active
Standard operating mode for data transmission
Note:
The optical link remains activated until the last orange LED in
the SIGNAL QUALITY indicator switches off.
MAN Green Continuous
light
MAN operating mode (Manual) active
Operating mode for fine adjustment of the devices via SHA (see
chapter 6.2.2).
Note:
The optical link remains activated until the last green LED in the
SIGNAL QUALITY indicator switches off.
ADJ Green Continuous
light
ADJ operating mode (Adjust) active
Operating mode for fine adjustment of the devices via SHA (see
chapter 6.2.2).
Note:
• Data transmission to the connected participants is deactiva-
ted.
• The optical link remains activated until the last orange LED
in the SIGNAL QUALITY indicator switches off.
• The received signal level (SIGNAL QUALITY) of the second
device is transmitted to the SIGNAL QUALITY indicator of
the first device.
LAS Green Continuous
light
LAS operating mode (Laser Adjustment System) active
The alignment laser mounting support is activated (see
chapter 4.2 "Mounting with alignment laser and level").
LLC --- OFF LLC operating mode (Link Loss Counter, interruption diag-
nostics) not activated.
Green Continuous
light
The optical link was interruption-free since activation of the LLC.
Red Continuous
light
The optical link was interrupted at least once since activation of
the LLC (see chapter 7.3).
FRE --- OFF Transmission frequency F1 preselected
Green Continuous
light
Transmission frequency F2 preselected (factory setting)

Device description
Leuze electronic DDLS 508 14
1 PWR – Supply voltage (Power)
2 TMP – Temperature warning/error
3 LSR – Laser prefailure message
4 FRE - Indicates the preselected transmission frequency
5 OLK – Optical link
6 ERL – Error Link
7 LINK – M12 cable-connected link
Figure 3.5: Operating state LEDs in the control panel
Table 3.2: Meaning of the operating state indicators
12 3 4 5 6 7
LED Color State Description
PWR --- OFF No supply voltage (see chapter 7.1)
Green Flashing Device is being initialized
• Supply voltage connected
• Initialization running
• No data sent or received
Green Continuous
light
Data transmission path ready
• Initialization finished
Red Flashing Warning set (see chapter 7.1)
• No green and orange LEDs in SIGNAL QUALITY indicator
• The optical link is interrupted.
• The laser diode of the transmitter is defective.
Red Continuous
light
Device error (see chapter 7.1)
• The function of the device is limited.
The displays of the other operating state LEDs may provide
information on the cause of the error.
TMP --- OFF Operating temperature in the specified working range
Orange Continuous
light
• Warning: The operating temperature is above or below the
specified working range by a maximum of 5 °C (see
chapter 7.1).
• Data transmission remains active.
Red Continuous
light
• The operating temperature is above or below the specified
working range by more than 5 °C (see chapter 7.1).
• The operating time outside of the permissible operating tem-
perature is detected by the device.
• Data transmission remains active.

Device description
Leuze electronic DDLS 508 15
SIGNAL QUALITY indicator
Eight individual LEDs are available for displaying the received signal level (SIGNAL QUALITY):
• two red LEDs
• two orange LEDs
• four green LEDs
At the optimum received signal level, all LEDs (red, orange, green) are activated.
If the received signal level drops, the LEDs are successively switched off, beginning with the green LEDs.
LSR --- OFF Laser diode of the transmitter with sufficient function reserve.
Orange Continuous
light
• Warning: The laser diode of the transmitter signals the immi-
nent end of the life expectancy (see chapter 7.1).
Limits to the maximum data transmission distance may occur.
• Data transmission remains active.
FRE --- OFF Transmission frequency F1 preselected
Green Continuous
light
Transmission frequency F2 preselected (factory setting)
OLK --- OFF No optical data connection
No data transmission
Causes (see chapter 7.1):
• Optical window soiled
• Insufficient alignment
• Range exceeded
• Environmental influences (snow, rain, fog)
• Transmitter deactivated
• Transmitter of the second device deactivated
Green Continuous
light
• The optical link exists.
• No data is sent or received.
Orange Continuous
light/
flickering
light
Data is sent and received.
ERL --- OFF No link error.
Orange Continuous
light
• Missing link (Ethernet cable connection) on the second
device (see chapter 7.1).
• SIGNAL QUALITY indicator on the second device without
green and orange LED (see chapter 7.1).
Red Continuous
light
• No cable-connected link to the connected device (see
chapter 7.1).
• SIGNAL QUALITY indicator without green and orange LED
(see chapter 7.1).
LINK --- OFF No cable-connected link to the connected device (see
chapter 7.1).
Green Continuous
light
• The link to the connected device is OK.
• No data is sent or received.
Orange Continuous
light/
flickering
light
• The link to the connected device is active.
• Data is sent and received.
LED Color State Description

Device description
Leuze electronic DDLS 508 16
1 two red LEDs
2 two orange LEDs
3 four green LEDs
Figure 3.6: SIGNAL QUALITY indicator of the received signal level
Table 3.3: Meaning of the SIGNAL QUALITY indicators
3.3.2 Indicators in the optics area
For simple, quick diagnosis, the device is equipped with a STATUS LED in the optics area.
The STATUS LED enables a quick summary diagnosis of the operating state of the device.
• The STATUS LED summarizes the displays of the individual LEDs of the control panel in a single
indicator.
• The STATUS LED illuminates very brightly and can also be seen from a relatively long distance.
12 3
FREFRE
LED Color State Description
SIGNAL
QUALITY
Green Continuous
light
4-stage
• Received signal level with function reserve.
• The optical link exists.
Orange Continuous
light
2-stage
Warning: Received signal level with minimal function reserve (see
chapter 7).
• The optical link exists.
AUT operating mode (Automatic): Data transmission is
active.
MAN (Manual), ADJ (Adjust) operating modes: Data trans-
mission is deactivated.
• Switching output IO1 of the POWER connection is activated
in operating modes AUT (Automatic), MAN (Manual) and
ADJ (Adjust).
Causes:
• Optical window soiled
• Range exceeded
• Environmental influences (snow, rain, fog)
• Insufficient alignment
Red Continuous
light
2-stage
The optical link is interrupted. The received signal level is not suf-
ficient (see chapter 7).
• No data is sent or received.
• Switching output IO1 of the POWER connection is activated.
Causes:
• Optical window soiled
• Range exceeded
• Environmental influences (snow, rain, fog)
• Insufficient alignment of the devices
• Transmitter of the second device deactivated

Device description
Leuze electronic DDLS 508 17
1STATUS LED
Figure 3.7: STATUS LED in the optics area
Table 3.4: Meaning of the STATUS LED display
3.3.3 Indicators in the connection area
For the status display of the Ethernet connection, the device is equipped with a split, two-colored LINK/
ACT LED in the connection area.
The LINK/ACT LED indicates the same state as the LINK LED in the control panel.
1
LED Color State Description
STATUS
LED
Green Continuous
light
Not a warning or error message.
Green Flashing There is/are warning message(s) (see chapter 7.2):
• SIGNAL QUALITY indicator without green LED in operating
modes AUT (Automatic), MAN (Manual), ADJ (Adjust)
• Temperature, warning or error (TMP)
• Laser pre-failure (LSR)
• Link Loss Counter has triggered (LLC)
Data transmission is active.
--- OFF • No supply voltage.
• SIGNAL QUALITY indicator shows only red LEDs.
• The LINK and LINK/ACT LEDs are off.
• The transmitter is deactivated (see chapter 7.2).

Device description
Leuze electronic DDLS 508 18
1 LED, Ethernet (split, two-colored) LINK/ACT
Figure 3.8: LINK/ACT LED in the connection area
Table 3.5: Meaning of the LINK/ACT displays
1
LED Color State Description
LINK/ACT --- OFF No cable-connected link to the connected device (see
chapter 7.1).
Green Continuous
light
• The link to the connected device is OK.
• No data is sent or received.
Orange Continuous
light /
flickering
light
• The link to the connected device is active.
• Data is sent and received.

Mounting
Leuze electronic DDLS 508 19
4 Mounting
The optical data transmission systems of series DDLS 500 support simple and quick basic assembly of
both mutually opposing devices.
• An optical data transmission system, consisting of two devices, involves mounting each of the
devices on mutually opposing, plane-parallel, flat and usually vertical walls with unobstructed view of
the opposing device.
• For installation with an integrated laser pointer (optional) see chapter 4.2 "Mounting with alignment
laser and level".
• For installation without the optional laser pointer see chapter 4.3 "Mounting without alignment laser".
4.1 Mounting instructions
Maintain the minimum distance to reflective surfaces
Mount the devices with a minimum distance to reflective surfaces, e.g., shelf rails, crossbeams, etc.
Maintain the minimum distance to the sides as well as above and below the stationary device and the
mobile device (see table 4.1).
A reflection-free corridor is thereby ensured between the two devices (see figure 4.1).
Table 4.1: Minimum mounting distance to surrounding objects
NOTICE
Interruption of data transmission!
Make certain that data transmission is not interrupted, e.g., by jolts, vibrations or inclination, while
moving a mobile device due to irregularities in the floor or path.
Data transmission is interrupted if the beam spread of the transmitters is no longer sufficient for main-
taining the optical link.
For mobile arrangement of a device, ensure good tracking stability.
NOTICE
Select the mounting location!
Make certain that the required environmental conditions (humidity, temperature) are maintained.
For low ambient temperatures, e.g., in cold stores, use data transmission systems with integrated hea-
ting.
Avoid rapid temperature changes at the data transmission system to prevent condensation.
Protect the data transmission system from direct sunlight.
For parallel mounting of data transmission systems and other optical measurement systems, make
certain that the minimum distance between the systems is maintained (see chapter 4.5, see
chapter 4.6, see chapter 4.7).
You will achieve greater flexibility during basic installation and fine adjustment if you mount the
devices on C profile rails.
If the device is mounted instead of a DDLS 200, use the adapter plate – to be ordered separately
– if necessary (see chapter 11.3 "Other accessories").
Range of the device Minimum mounting distance
40 m (DDLS_5XX 40...) 100 mm
120 m (DDLS_5XX 120...) 250 mm

Mounting
Leuze electronic DDLS 508 20
1 Minimum mounting distance
Figure 4.1: Minimum mounting distance
If the minimum mounting distance is maintained, possible reflections do not affect the quality of the data
transmission.
4.2 Mounting with alignment laser and level
The optional alignment laser simplifies mounting of the mutually opposing devices.
• The alignment laser consists of an integrated laser with special beam optics. In addition, a level is
integrated in devices with alignment laser.
• Alignment laser, level, transmission optics and installation in a device housing form an axially parallel
unit.
• The laser spot of the alignment laser shows the installation position of the mutually opposing device.
4.2.1 Horizontal mounting (travel axis) with the alignment laser
A drilling template is included with the packaging (see figure 4.2).
1
1
1
1

Mounting
Leuze electronic DDLS 508 21
all dimensions in mm
Figure 4.2: Drilling template
Figure 4.3: Mounting with offset housings
When performed using the drilling template, the described mounting procedure results in a set-
up with the housings of the devices offset relative to one another (see figure 4.3). The transmitted
beam of one device is thereby aligned with the center of the receiver optics of the mutually oppo-
sing device.
30 mm