Beckhoff KL6301 Operator's manual

Documentation | EN
KL6301
EIB/KNX Bus Terminal
2022-09-16 | Version: 3.1.0

Table of Contents
KL6301 3Version: 3.1.0
Table of Contents
1 Foreword....................................................................................................................................................5
1.1 Notes on the documentation .............................................................................................................5
1.2 Safety instructions.............................................................................................................................6
1.3 Documentation issue status ..............................................................................................................7
2 Product overview ......................................................................................................................................8
2.1 Introduction .......................................................................................................................................8
2.2 Technical data...................................................................................................................................9
3 Mounting and wiring ...............................................................................................................................10
3.1 Instructions for ESD protection .......................................................................................................10
3.2 Installation on mounting rails...........................................................................................................11
3.3 Disposal ..........................................................................................................................................13
3.4 Installation instructions for enhanced mechanical load capacity.....................................................14
3.5 Connection ......................................................................................................................................15
3.5.1 Connection system........................................................................................................... 15
3.5.2 Wiring ...............................................................................................................................16
3.5.3 Contact assignment ......................................................................................................... 18
3.5.4 Diagnostic LEDs............................................................................................................... 19
3.6 ATEX - Special conditions (standard temperature range)...............................................................20
3.7 Continuative documentation for ATEX and IECEx..........................................................................21
4 EIB ............................................................................................................................................................22
4.1 Function of the KL6301 ...................................................................................................................22
5 Programming...........................................................................................................................................23
5.1 TwinCAT libraries............................................................................................................................23
6 Appendix..................................................................................................................................................24
6.1 Beckhoff Identification Code (BIC) ..................................................................................................24
6.2 Support and Service........................................................................................................................26

Table of Contents
KL63014 Version: 3.1.0

Foreword
KL6301 5Version: 3.1.0
1 Foreword
1.1 Notes on the documentation
Intended audience
This description is only intended for the use of trained specialists in control and automation engineering who
are familiar with the applicable national standards.
It is essential that the documentation and the following notes and explanations are followed when installing
and commissioning these components.
It is the duty of the technical personnel to use the documentation published at the respective time of each
installation and commissioning.
The responsible staff must ensure that the application or use of the products described satisfy all the
requirements for safety, including all the relevant laws, regulations, guidelines and standards.
Disclaimer
The documentation has been prepared with care. The products described are, however, constantly under
development.
We reserve the right to revise and change the documentation at any time and without prior announcement.
No claims for the modification of products that have already been supplied may be made on the basis of the
data, diagrams and descriptions in this documentation.
Trademarks
Beckhoff®, TwinCAT®, TwinCAT/BSD®, TC/BSD®, EtherCAT®, EtherCATG®, EtherCATG10®, EtherCATP®,
SafetyoverEtherCAT®, TwinSAFE®, XFC®, XTS® and XPlanar® are registered trademarks of and licensed by
Beckhoff Automation GmbH. Other designations used in this publication may be trademarks whose use by
third parties for their own purposes could violate the rights of the owners.
Patent Pending
The EtherCAT Technology is covered, including but not limited to the following patent applications and
patents: EP1590927, EP1789857, EP1456722, EP2137893, DE102015105702 with corresponding
applications or registrations in various other countries.
EtherCAT® is registered trademark and patented technology, licensed by Beckhoff Automation GmbH,
Germany.
Copyright
© Beckhoff Automation GmbH & Co. KG, Germany.
The reproduction, distribution and utilization of this document as well as the communication of its contents to
others without express authorization are prohibited.
Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a
patent, utility model or design.

Foreword
KL63016 Version: 3.1.0
1.2 Safety instructions
Safety regulations
Please note the following safety instructions and explanations!
Product-specific safety instructions can be found on following pages or in the areas mounting, wiring,
commissioning etc.
Exclusion of liability
All the components are supplied in particular hardware and software configurations appropriate for the
application. Modifications to hardware or software configurations other than those described in the
documentation are not permitted, and nullify the liability of Beckhoff Automation GmbH & Co. KG.
Personnel qualification
This description is only intended for trained specialists in control, automation and drive engineering who are
familiar with the applicable national standards.
Description of instructions
In this documentation the following instructions are used.
These instructions must be read carefully and followed without fail!
DANGER
Serious risk of injury!
Failure to follow this safety instruction directly endangers the life and health of persons.
WARNING
Risk of injury!
Failure to follow this safety instruction endangers the life and health of persons.
CAUTION
Personal injuries!
Failure to follow this safety instruction can lead to injuries to persons.
NOTE
Damage to environment/equipment or data loss
Failure to follow this instruction can lead to environmental damage, equipment damage or data loss.
Tip or pointer
This symbol indicates information that contributes to better understanding.

Foreword
KL6301 7Version: 3.1.0
1.3 Documentation issue status
Version Comment
3.1.0 • Chapter Technical data updated
• Ex markings added to technical data
• Chapter Instructions for ESD protection added
• Chapter Disposal added
• Chapter Beckhoff Identification Code (BIC) added
• Document structure updated
• Links to TwinCAT libraries updated
• New title page
3.0.0 • Migration
• Connection technology updated
• Connection corrected
2.3.0 • Programming description moved to the Beckhoff Information System [}23]
• TwinCAT library TcEIB (formerly TcKL6301) updated to version 5.2.0
• ATEX notes added
2.2.0 • Integrated TwinCAT library TcKL6301 updated to version 3.0.6
2.1.0 • Description of the link with the TwinCAT System Manager added
2.0.0 • Changes to the firmware version B1 (8 filters now possible) and TwinCAT library TcKL6301,
version V3.000.000. Note:
The TwinCAT library TcKL6301, version V3.000.000 (or higher) can also be used with
firmware version B0. In that case, however, only the 4 filters with 64 entries each are possible.
1.2.0 • Mounting description expanded
1.1.0 • New output variable in receive function block (V2.005.000)
1.0.0 • First release
Hardware and firmware versions
Documentation
Version
KL6301
Firmware Hardware
3.1.0 B3 03
3.0.0 B3 02
2.3.0 B2 01
2.2.0 B1 01
2.1.0 B1 00
2.0.0 B1 00
1.2.0 B0 00
1.1.0 B0 00
1.0.0 B0 00
The hardware and firmware version (delivery state) can be found in the serial number printed at the side of
the terminal.
Syntax of the serial number
Structure of the serial number: WWYYFFHH
WW - week of production (calendar week)
YY - year
FF - firmware version
HH - hardware version
Example with serial number 35 05 B0 00:
35 - week of production 35
05 - year of production 2005
B0 - firmware version B0
00 - hardware version 00

Product overview
KL63018 Version: 3.1.0
2 Product overview
2.1 Introduction
Fig.1: KL6301
The EIB Bus Terminal KL6301 connects the EIB/KNX bus system to the Beckhoff Bus Terminal system. The
KL6301 offers the possibility to exchange any data with EIB/KNX devices. The ETS software is not required
for configuring the KL6301. It is configured and parameterized via TwinCAT function blocks (IEC61131-3).
Software required for use of the KL6301:
1. An ETS tool for linking the data and commissioning the other EIB/KNX devices
2. TwinCAT PLC and an appropriate library to communicate with the KL6301 from the application.
TwinCAT library for EIB/KNX: TcKL6301
TwinCAT supports the KL6301 with its own library for EIB/KNX, the TcEIB [}23].
If the KL6301 is to be used with an external controller, a Bus Terminal controller (BC or BX) is re-
quired on which the EIB library can run. Operation of the KL6301 on a PC or CX without TwinCAT
PLC is not supported!

Product overview
KL6301 9Version: 3.1.0
2.2 Technical data
Technical data KL6301
Number of outputs 1
Transmission standard Twisted Pair (TP)
Data transfer rate 9.6kbyte
Electrical isolation 500V (K-Bus/EIB)
Power supply for the electronics via the K-bus and through the power contacts
EIB electronics via an external EIB power supply
unit
Current consumption via K-bus typically 55mA
Bit width in process image Output: 24bytes data, input: 24bytes data
Weight approx.85g
Dimensions (WxHxD) approx. 12mm x 100mm x 70mm
Mounting [}11] on 35mm mounting rail conforms to EN60715
Permissible ambient temperature range during
operation
0°C ... + 55°C
Permissible ambient temperature range during storage -25°C ... + 85°C
Permissible relative air humidity 95%, no condensation
Enhanced mechanical load capacity Yes, see installation instructions [}14] for
enhanced mechanical load capacity
Vibration/ shock resistance conforms to EN60068-2-6/ EN60068-2-27
EMC immunity/ emission conforms to EN61000-6-2/ EN61000-6-4
Protection class IP20
Mounting position variable
Approvals/markings* CE, UKCA, cULus, EAC, ATEX [}20]
*) Real applicable approvals/markings see type plate on the side (product marking).
Ex marking
Standard Marking
ATEX II 3 G Ex nA IIC T4 Gc

Mounting and wiring
KL630110 Version: 3.1.0
3 Mounting and wiring
3.1 Instructions for ESD protection
NOTE
Destruction of the devices by electrostatic discharge possible!
The devices contain components at risk from electrostatic discharge caused by improper handling.
• Please ensure you are electrostatically discharged and avoid touching the contacts of the device directly.
• Avoid contact with highly insulating materials (synthetic fibers, plastic film etc.).
• Surroundings (working place, packaging and personnel) should by grounded probably, when handling
with the devices.
• Each assembly must be terminated at the right hand end with a KL9010 bus end terminal, to ensure the
protection class and ESD protection.
Fig.2: Spring contacts of the Beckhoff I/O components

Mounting and wiring
KL6301 11Version: 3.1.0
3.2 Installation on mounting rails
WARNING
Risk of electric shock and damage of device!
Bring the bus terminal system into a safe, powered down state before starting installation, disassembly or
wiring of the bus terminals!
Assembly
Fig.3: Attaching on mounting rail
The bus coupler and bus terminals are attached to commercially available 35mm mounting rails (DIN rails
according to EN60715) by applying slight pressure:
1. First attach the fieldbus coupler to the mounting rail.
2. The bus terminals are now attached on the right-hand side of the fieldbus coupler. Join the compo-
nents with tongue and groove and push the terminals against the mounting rail, until the lock clicks
onto the mounting rail.
If the terminals are clipped onto the mounting rail first and then pushed together without tongue and
groove, the connection will not be operational! When correctly assembled, no significant gap should
be visible between the housings.
Fixing of mounting rails
The locking mechanism of the terminals and couplers extends to the profile of the mounting rail. At
the installation, the locking mechanism of the components must not come into conflict with the fixing
bolts of the mounting rail. To mount the mounting rails with a height of 7.5mm under the terminals
and couplers, you should use flat mounting connections (e.g. countersunk screws or blind rivets).

Mounting and wiring
KL630112 Version: 3.1.0
Disassembly
Fig.4: Disassembling of terminal
Each terminal is secured by a lock on the mounting rail, which must be released for disassembly:
1. Pull the terminal by its orange-colored lugs approximately 1cm away from the mounting rail. In doing
so for this terminal the mounting rail lock is released automatically and you can pull the terminal out of
the bus terminal block easily without excessive force.
2. Grasp the released terminal with thumb and index finger simultaneous at the upper and lower grooved
housing surfaces and pull the terminal out of the bus terminal block.
Connections within a bus terminal block
The electric connections between the Bus Coupler and the Bus Terminals are automatically realized by
joining the components:
• The six spring contacts of the K-Bus/E-Bus deal with the transfer of the data and the supply of the Bus
Terminal electronics.
• The power contacts deal with the supply for the field electronics and thus represent a supply rail within
the bus terminal block. The power contacts are supplied via terminals on the Bus Coupler (up to 24V)
or for higher voltages via power feed terminals.
Power Contacts
During the design of a bus terminal block, the pin assignment of the individual Bus Terminals must
be taken account of, since some types (e.g. analog Bus Terminals or digital 4-channel Bus Termi-
nals) do not or not fully loop through the power contacts. Power Feed Terminals (KL91xx, KL92xx
or EL91xx, EL92xx) interrupt the power contacts and thus represent the start of a new supply rail.
PE power contact
The power contact labeled PE can be used as a protective earth. For safety reasons this contact mates first
when plugging together, and can ground short-circuit currents of up to 125A.

Mounting and wiring
KL6301 13Version: 3.1.0
Fig.5: Power contact on left side
NOTE
Possible damage of the device
Note that, for reasons of electromagnetic compatibility, the PE contacts are capacitatively coupled to the
mounting rail. This may lead to incorrect results during insulation testing or to damage on the terminal (e.g.
disruptive discharge to the PE line during insulation testing of a consumer with a nominal voltage of 230V).
For insulation testing, disconnect the PE supply line at the Bus Coupler or the Power Feed Terminal! In or-
der to decouple further feed points for testing, these Power Feed Terminals can be released and pulled at
least 10mm from the group of terminals.
WARNING
Risk of electric shock!
The PE power contact must not be used for other potentials!
3.3 Disposal
Products marked with a crossed-out wheeled bin shall not be discarded
with the normal waste stream. The device is considered as waste
electrical and electronic equipment. The national regulations for the
disposal of waste electrical and electronic equipment must be observed.

Mounting and wiring
KL630114 Version: 3.1.0
3.4 Installation instructions for enhanced mechanical
load capacity
WARNING
Risk of injury through electric shock and damage to the device!
Bring the Bus Terminal system into a safe, de-energized state before starting mounting, disassembly or
wiring of the Bus Terminals!
Additional checks
The terminals have undergone the following additional tests:
Verification Explanation
Vibration 10 frequency runs in 3 axes
6 Hz < f < 60 Hz displacement 0.35 mm, constant amplitude
60.1Hz<f<500Hz acceleration 5g, constant amplitude
Shocks 1000 shocks in each direction, in 3 axes
25 g, 6 ms
Additional installation instructions
For terminals with enhanced mechanical load capacity, the following additional installation instructions apply:
• The enhanced mechanical load capacity is valid for all permissible installation positions
• Use a mounting rail according to EN 60715 TH35-15
• Fix the terminal segment on both sides of the mounting rail with a mechanical fixture, e.g. an earth
terminal or reinforced end clamp
• The maximum total extension of the terminal segment (without coupler) is:
64 terminals (12mm mounting with) or 32 terminals (24mm mounting with)
• Avoid deformation, twisting, crushing and bending of the mounting rail during edging and installation of
the rail
• The mounting points of the mounting rail must be set at 5 cm intervals
• Use countersunk head screws to fasten the mounting rail
• The free length between the strain relief and the wire connection should be kept as short as possible. A
distance of approx. 10cm should be maintained to the cable duct.

Mounting and wiring
KL6301 15Version: 3.1.0
3.5 Connection
3.5.1 Connection system
WARNING
Risk of electric shock and damage of device!
Bring the bus terminal system into a safe, powered down state before starting installation, disassembly or
wiring of the bus terminals!
Overview
The bus terminal system offers different connection options for optimum adaptation to the respective
application:
• The terminals of ELxxxx and KLxxxx series with standard wiring include electronics and connection
level in a single enclosure.
• The terminals of ESxxxx and KSxxxx series feature a pluggable connection level and enable steady
wiring while replacing.
• The High Density Terminals (HD Terminals) include electronics and connection level in a single
enclosure and have advanced packaging density.
Standard wiring (ELxxxx / KLxxxx)
Fig.6: Standard wiring
The terminals of ELxxxx and KLxxxx series have been tried and tested for years.
They feature integrated screwless spring force technology for fast and simple assembly.
Pluggable wiring (ESxxxx / KSxxxx)
Fig.7: Pluggable wiring
The terminals of ESxxxx and KSxxxx series feature a pluggable connection level.
The assembly and wiring procedure is the same as for the ELxxxx and KLxxxx series.
The pluggable connection level enables the complete wiring to be removed as a plug connector from the top
of the housing for servicing.
The lower section can be removed from the terminal block by pulling the unlocking tab.
Insert the new component and plug in the connector with the wiring. This reduces the installation time and
eliminates the risk of wires being mixed up.
The familiar dimensions of the terminal only had to be changed slightly. The new connector adds about 3
mm. The maximum height of the terminal remains unchanged.

Mounting and wiring
KL630116 Version: 3.1.0
A tab for strain relief of the cable simplifies assembly in many applications and prevents tangling of individual
connection wires when the connector is removed.
Conductor cross sections between 0.08mm2 and 2.5mm2 can continue to be used with the proven spring
force technology.
The overview and nomenclature of the product names for ESxxxx and KSxxxx series has been retained as
known from ELxxxx and KLxxxx series.
High Density Terminals (HD Terminals)
Fig.8: High Density Terminals
The terminals from these series with 16 terminal points are distinguished by a particularly compact design,
as the packaging density is twice as large as that of the standard 12mm bus terminals. Massive conductors
and conductors with a wire end sleeve can be inserted directly into the spring loaded terminal point without
tools.
Wiring HD Terminals
The High Density Terminals of the ELx8xx and KLx8xx series doesn't support pluggable wiring.
Ultrasonically “bonded” (ultrasonically welded) conductors
Ultrasonically “bonded” conductors
It is also possible to connect the Standard and High Density Terminals with ultrasonically “bonded”
(ultrasonically welded) conductors. In this case, please note the tables concerning the wire-size
width [}17]!
3.5.2 Wiring
WARNING
Risk of electric shock and damage of device!
Bring the bus terminal system into a safe, powered down state before starting installation, disassembly or
wiring of the bus terminals!

Mounting and wiring
KL6301 17Version: 3.1.0
Terminals for standard wiring ELxxxx/KLxxxx and for pluggable wiring ESxxxx/KSxxxx
Fig.9: Connecting a cable on a terminal point
Up to eight terminal points enable the connection of solid or finely stranded cables to the bus terminal. The
terminal points are implemented in spring force technology. Connect the cables as follows:
1. Open a terminal point by pushing a screwdriver straight against the stop into the square opening
above the terminal point. Do not turn the screwdriver or move it alternately (don't toggle).
2. The wire can now be inserted into the round terminal opening without any force.
3. The terminal point closes automatically when the pressure is released, holding the wire securely and
permanently.
See the following table for the suitable wire size width.
Terminal housing ELxxxx, KLxxxx ESxxxx, KSxxxx
Wire size width (single core wires) 0.08 ... 2.5mm20.08 ... 2.5mm2
Wire size width (fine-wire conductors) 0.08 ... 2.5mm20.08 ... 2.5mm2
Wire size width (conductors with a wire end sleeve) 0.14 ... 1.5mm20.14 ... 1.5mm2
Wire stripping length 8 ... 9mm 9 ... 10mm
High Density Terminals (HD Terminals [}16]) with 16 terminal points
The conductors of the HD Terminals are connected without tools for single-wire conductors using the direct
plug-in technique, i.e. after stripping the wire is simply plugged into the terminal point. The cables are
released, as usual, using the contact release with the aid of a screwdriver. See the following table for the
suitable wire size width.
Terminal housing High Density Housing
Wire size width (single core wires) 0.08 ... 1.5mm2
Wire size width (fine-wire conductors) 0.25 ... 1.5mm2
Wire size width (conductors with a wire end sleeve) 0.14 ... 0.75mm2
Wire size width (ultrasonically “bonded" conductors) only 1.5mm2 (see notice [}16])
Wire stripping length 8 ... 9mm

Mounting and wiring
KL630118 Version: 3.1.0
3.5.3 Contact assignment
WARNING
Risk of injury through electric shock and damage to the device!
Bring the Bus Terminals system into a safe, de-energized state before starting mounting, disassembly or
wiring of the Bus Terminals!
Fig.10: KL6301 - Contact assignment
Terminal point No. Connection for
Set 1 reserved
EIB+ 2 EIB plus (red), internally connected with terminal point 6
EIB- 3 EIB minus (grey), internally connected with terminal point 7
Shield 4 Shield, internally connected with terminal point 8
Set 5 reserved
EIB+ 6 EIB plus (red), internally connected with terminal point 2
EIB- 7 EIB minus (grey), internally connected with terminal point 3
Shield 8 Shield, internally connected with terminal point 4
Set terminal points
The terminal points for Set have no function and must not be used!

Mounting and wiring
KL6301 19Version: 3.1.0
3.5.4 Diagnostic LEDs
The LEDs indicate the operating state of the KL6301.
Fig.11: KL6301 - Diagnostic LEDs
LED displays
LED Color Chan-
nel
State and significance
on off flashes
K-Bus Run green 1 Lit, either weakly or strongly: K-bus
communication OK
No K-Bus
communication
K-Bus
communication
Set green No significance - -
EIB-TXD green Goes out briefly when an EIB telegram is
sent
- -
EIB-RXD /
POWER
green Goes out briefly when an EIB telegram is
received
No EIB power
supply unit is
connected
-
SEND green Toggles for each EIB telegram sent - -
RECEIVE green Toggles for each received EIB telegram - -
EIB ERROR red Comes on in the event of an error. Goes
out once the error was read.
- -

Mounting and wiring
KL630120 Version: 3.1.0
3.6 ATEX - Special conditions (standard temperature
range)
WARNING
Observe the special conditions for the intended use of Beckhoff fieldbus components with
standard temperature range in potentially explosive areas (directive2014/34/EU)!
• The certified components are to be installed in a suitable housing that guarantees a protection class of at
least IP54 in accordance with EN60079-15! The environmental conditions during use are thereby to be
taken into account!
• For dust (only the fieldbus components of certificate no. KEMA10ATEX0075XIssue9): The equipment
shall be installed in a suitable enclosure providing a degree of protection of IP54 according to
EN60079-31 for group IIIA or IIIB and IP6X for group IIIC, taking into account the environmental condi-
tions under which the equipment is used!
• If the temperatures during rated operation are higher than 70°C at the feed-in points of cables, lines or
pipes, or higher than 80°C at the wire branching points, then cables must be selected whose tempera-
ture data correspond to the actual measured temperature values!
• Observe the permissible ambient temperature range of 0 to 55°C for the use of Beckhoff fieldbus compo-
nents standard temperature range in potentially explosive areas!
• Measures must be taken to protect against the rated operating voltage being exceeded by more than
40% due to short-term interference voltages!
• The individual terminals may only be unplugged or removed from the Bus Terminal system if the supply
voltage has been switched off or if a non-explosive atmosphere is ensured!
• The connections of the certified components may only be connected or disconnected if the supply volt-
age has been switched off or if a non-explosive atmosphere is ensured!
• The fuses of the KL92xx/EL92xx power feed terminals may only be exchanged if the supply voltage has
been switched off or if a non-explosive atmosphere is ensured!
• Address selectors and ID switches may only be adjusted if the supply voltage has been switched off or if
a non-explosive atmosphere is ensured!
Standards
The fundamental health and safety requirements are fulfilled by compliance with the following standards:
• EN 60079-0:2012+A11:2013
• EN 60079-15:2010
• EN 60079-31:2013 (only for certificate no. KEMA 10ATEX0075 X Issue 9)
Marking
The Beckhoff fieldbus components with standard temperature range certified according to the ATEX directive
for potentially explosive areas bear one of the following markings:
II 3G KEMA 10ATEX0075 X Ex nA IIC T4 Gc Ta: 0 … +55°C
II 3D KEMA 10ATEX0075 X Ex tc IIIC T135°C Dc Ta: 0 ... +55°C
(only for fieldbus components of certificate no. KEMA 10ATEX0075 X Issue 9)
or
II 3G KEMA 10ATEX0075 X Ex nA nC IIC T4 Gc Ta: 0 … +55°C
II 3D KEMA 10ATEX0075 X Ex tc IIIC T135°C Dc Ta: 0 ... +55°C
(only for fieldbus components of certificate no. KEMA 10ATEX0075 X Issue 9)