2.3Technical data .................................................................................................................................10
3 Mounting and wiring................................................................................................................................11
3.1Installation on mounting rails ...........................................................................................................11
6.1Support and Service ........................................................................................................................23
KL6301-00003Version: 3.0.0
Table of Contents
KL6301-00004Version: 3.0.0
Foreword
1Foreword
1.1Notes 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®, EtherCAT®, EtherCATP®, SafetyoverEtherCAT®, TwinSAFE®, XFC® and XTS® 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, DE102004044764, DE102007017835 with corresponding applications or
registrations in various other countries.
The TwinCAT Technology is covered, including but not limited to the following patent applications and
patents: EP0851348, US6167425 with corresponding applications or registrations in various other countries.
EtherCAT® is registered trademark and patented technology, licensed by Beckhoff Automation GmbH,
Germany.
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.
KL6301-00006Version: 3.0.0
Foreword
1.3Documentation issue status
VersionComment
3.0.0• Migration
• Connection technology updated
• Connection corrected
2.3.0
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,
1.2.0• Mounting description expanded
1.1.0• New output variable in receive function block (V2.005.000)
1.0.0• First release
• Programming description moved to the Beckhoff Information System [}22]
• TwinCAT library TcEIB (formerly TcKL6301) updated to version 5.2.0
• ATEX notes added
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.
Hardware and firmware versions
Documentation
Version
3.0.0B202
2.3.0B201
2.2.0B101
2.1.0B100
2.0.0B100
1.2.0B000
1.1.0B000
1.0.0B000
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: WWYYFFHH
WW - week of production (calendar week)
YY - year
FF - firmware version
HH - hardware version
KL6301-0000
FirmwareHardware
Example with ser. no.: 35 05 B0 00:
35 - week of production 35
05 - year of production 2005
B0 - firmware version B0
00 - hardware version 00
KL6301-00007Version: 3.0.0
Product overview
2Product overview
2.1Introduction
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 (IEC61131-3).
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 [}22].
If the KL6301 is to be used with an external controller, a Bus Terminal controller (BC or BX) is required on which the EIB library can run. Operation of the KL6301 on a PC or CX without TwinCAT
PLC is not supported!
KL6301-00008Version: 3.0.0
2.2Diagnostic LEDs
The LEDs indicate the operating state of the KL6301.
Fig.2: KL6301 - Diagnostic LEDs
LED displays
Product overview
LEDColorChan-
nel
K-Bus Rungreen1Lit, either weakly or strongly: K-bus
SetgreenNo significance--
EIB-TXDgreenGoes out briefly when an EIB telegram is
EIB-RXD /
POWER
SENDgreenToggles for each EIB telegram sent--
RECEIVEgreenToggles for each received EIB telegram--
EIB ERROR redComes on in the event of an error. Goes
greenGoes out briefly when an EIB telegram is
State and significance
onoffflashes
No K-Bus
communication OK
sent
received
out once the error was read.
communication
--
No EIB power
supply unit is
connected
--
K-Bus
communication
-
KL6301-00009Version: 3.0.0
Product overview
2.3Technical data
Technical dataKL6301-0000
Number of outputs1
Transmission standardTwisted Pair (TP)
Data transfer rate9.6kbyte
Electrical isolation500V (K-Bus/EIB)
Power supply for the electronicsvia the K-bus and through the power contacts
EIB electronics via an external EIB power supply
unit
Current consumption via K-bustypically 55mA
Bit width in process imageOutput: 24bytes data, input: 24bytes data
Weightapprox.85g
Dimensions (WxHxD)approx. 12mm x 100mm x 70mm
Mounting [}11]
Permissible ambient temperature range during
operation
Permissible ambient temperature range during storage -25°C ... + 85°C
Permissible relative air humidity95%, no condensation
Vibration/shock resistanceconforms to EN60068-2-6/ EN60068-2-27
EMC immunity/emissionconforms to EN61000-6-2 / EN61000-6-4
Protection classIP20
Mounting positionvariable
ApprovalCE, cULus, ATEX
on 35mm mounting rail conforms to EN60715
0°C ... + 55°C
see also installation instructions [}18] for
enhanced mechanical load capacity
KL6301-000010Version: 3.0.0
Mounting and wiring
3Mounting and wiring
3.1Installation 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 35mm mounting rails (DIN rails
according to EN60715) 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 components 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 7.5mm under the terminals
and couplers, you should use flat mounting connections (e.g. countersunk screws or blind rivets).
KL6301-000011Version: 3.0.0
Mounting and wiring
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 1cm 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 24V)
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 Terminals) 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 125A.
KL6301-000012Version: 3.0.0
Fig.5: Power contact on left side
Mounting and wiring
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 230V).
For insulation testing, disconnect the PE supply line at the Bus Coupler or the Power Feed Terminal! In order to decouple further feed points for testing, these Power Feed Terminals can be released and pulled at
least 10mm from the group of terminals.
WARNING
Risk of electric shock!
The PE power contact must not be used for other potentials!
3.2Connection
3.2.1Connection 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.
KL6301-000013Version: 3.0.0
Mounting and wiring
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.
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 0.08mm2 and 2.5mm2 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 Bus 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 12mm Bus Terminals. Massive
conductors and conductors with a wire end sleeve can be inserted directly into the spring loaded terminal
point without tools.
KL6301-000014Version: 3.0.0
Mounting and wiring
Wiring HD Terminals
The High Density (HD) Terminals of the ELx8xx and KLx8xx series doesn't support pluggable
wiring.
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 below!
3.2.2Wiring
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!
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.
Wire size width (conductors with a wire end sleeve)0.14 ... 1.5mm
2
2
2
0.08 ... 2.5mm
0,08 ... 2.5mm
0.14 ... 1.5mm
2
2
2
Wire stripping length8 ... 9mm9 ... 10mm
High Density Terminals (HD Terminals [}14]) 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.
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.
KL6301-000018Version: 3.0.0
Mounting and wiring
3.5ATEX - 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 94/9/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 60529! The environmental conditions during use are thereby to be
taken into account!
• 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 temperature 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 components 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 voltage 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
Marking
The Beckhoff fieldbus components with standard temperature range certified for potentially explosive areas
bear one of the following markings:
II 3GKEMA 10ATEX0075 X Ex nA IIC T4 GcTa: 0…55°C
or
II 3GKEMA 10ATEX0075 X Ex nC IIC T4 GcTa: 0…55°C
KL6301-000019Version: 3.0.0
Mounting and wiring
3.6ATEX Documentation
Notes about operation of the Beckhoff terminal systems in potentially explosive areas (ATEX)
Pay also attention to the continuative documentation
Notes about operation of the Beckhoff terminal systems in potentially explosive areas (ATEX)
that is available in the download area of the Beckhoff homepage http:\\www.beckhoff.com!
KL6301-000020Version: 3.0.0
4EIB
4.1Function of the KL6301
Operation of the EIB Bus Terminal requires function blocks that are available for downloading from within
this documentation.
From firmware version B1 and library version V3.000.000 there are three different modes that can be
activated in the KL6301 function block.
Mode 0: 4 filters, each with 64 group entries (compatible with firmware B0 )
Mode 1: 8 filters, each with 32 group entries
Mode 100: Monitor function (all group address telegrams can be received, the KL6301 sends no ACK).
Sending is disabled in this mode.
Mode 1 and 100
Modes 1 and 100 can only be used with the basic function blocks from the TcKL6301 library.
EIB
Sending
The KL6301 sends data individually. This means that a Data variable sent to the KL6301 is sent to the EIB
network individually. Subsequent EIB data can only be transferred to the KL6301 after a successful transfer.
Two types of EIB telegrams can be sent:
• WRITE_GROUP for writing data to other EIB devices
• READ_GROUP_REQ for requesting data from other EIB devices
Receiving
The KL6301 has a maximum of 8 filter addresses. These filters filter the EIB group addresses. Only EIB
telegrams entered in the filter are visible in the process image and are acknowledged.
A filter may contain up to 64 group addresses. With 4 filters multiplied with 64 entries a total of 256 group
addresses are available. With 8 filters multiplied with 32 entries a total of 256 group addresses are available.
The system is configured via a function block. The group addresses are loaded and are immediately active
when the Bus Terminal is initialized.
At least one filter has to be parameterized. The type of data is irrelevant for the filter setting.
Monitor function
No filters must be set if mode 100 is enabled. The filters EIB_GROUP_FILTER are simply left empty and not
written.
KL6301-000021Version: 3.0.0
Programming
5Programming
5.1TwinCAT libraries
Software documentation in the Beckhoff Information System:
TwinCAT 2: TwinCAT 2 PLC Lib: EIB
TwinCAT 3: TwinCAT 3 PLC Lib: Tc2_EIB
KL6301-000022Version: 3.0.0
Appendix
6Appendix
6.1Support and Service
Beckhoff and their partners around the world offer comprehensive support and service, making available fast
and competent assistance with all questions related to Beckhoff products and system solutions.
Beckhoff's branch offices and representatives
Please contact your Beckhoff branch office or representative for local support and service on Beckhoff
products!
The addresses of Beckhoff's branch offices and representatives round the world can be found on her internet
pages:
http://www.beckhoff.com
You will also find further documentation for Beckhoff components there.
Support offers you comprehensive technical assistance, helping you not only with the application of
individual Beckhoff products, but also with other, wide-ranging services:
• support
• design, programming and commissioning of complex automation systems
• and extensive training program for Beckhoff system components