Documentation
KL2502, KL2512
Dual Channel Pulse Width Output Terminals, 24 V DC
Version:
Date:
4.2
2019-10-11
Table of contents
Table of contents
1 Foreword ....................................................................................................................................................5
1.1 Notes on the documentation..............................................................................................................5
1.2 Safety instructions .............................................................................................................................6
1.3 Documentation issue status ..............................................................................................................7
1.4 Beckhoff Identification Code (BIC) ....................................................................................................7
2 Product overview.....................................................................................................................................10
2.1 KL2502 - Introduction ......................................................................................................................10
2.2 KL2512 - Introduction ......................................................................................................................11
2.3 KL2502, KL2512 - Technical data ...................................................................................................12
2.4 Basic Function Principles ................................................................................................................12
2.5 Operation modes .............................................................................................................................13
3 Mounting and wiring................................................................................................................................15
3.1 Instructions for ESD protection........................................................................................................15
3.2 Installation on mounting rails ...........................................................................................................15
3.3 Connection ......................................................................................................................................19
3.3.1 Connection system .......................................................................................................... 19
3.3.2 Wiring............................................................................................................................... 21
3.3.3 Shielding .......................................................................................................................... 22
3.4 KL2502, KL2512 - Connection and LED description .......................................................................23
3.5 ATEX - Special conditions (standard temperature range) ...............................................................24
3.6 ATEX Documentation ......................................................................................................................25
4 Configuration Software KS2000.............................................................................................................26
4.1 KS2000 - Introduction......................................................................................................................26
5 Access from the user program ..............................................................................................................28
5.1 Terminal configuration .....................................................................................................................28
5.2 Mapping in the Bus Coupler ............................................................................................................29
5.2.1 KL2502 ............................................................................................................................ 29
5.3 Register overview ............................................................................................................................31
5.4 Register description.........................................................................................................................32
5.5 Control and status byte....................................................................................................................35
5.5.1 Register communication .................................................................................................. 35
5.6 Examples of Register Communication ............................................................................................36
5.6.1 Example 1: reading the firmware version from Register 9............................................... 36
5.6.2 Example 2: Writing to an user register............................................................................. 37
6 Appendix ..................................................................................................................................................40
6.1 Support and Service ........................................................................................................................40
KL2502, KL2512 3Version: 4.2
Table of contents
KL2502, KL25124 Version: 4.2
Foreword
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®, EtherCAT®, EtherCATG®, EtherCATG10®, EtherCATP®, SafetyoverEtherCAT®,
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.
KL2502, KL2512 5Version: 4.2
Foreword
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.
KL2502, KL25126 Version: 4.2
1.3 Documentation issue status
Version Comment
4.2 • Update chapter “Instructions for ESD protection”
• Chapter “Beckhoff Identification Code (BIC)” added
4.1 • Structure update
• Technical data updated
• Revision status updated
4.0 • Migration
• Structure update
• Technical data updated
• Revision status updated
Firmware and hardware versions
Foreword
Documentation
Version
KL2502 KL2512
Firmware Firmware Firmware Hardware
4.1 3F 08 3F 02
4.0 3F 08 3F 02
The firmware and hardware versions (delivery state) of the terminal can be found in the serial number printed
on the side.
Syntax of the serial number
Structure of the serial number: WWYYFFHH
WW - week of production (calendar week)
YY – year of production
FF - firmware version
HH - hardware version
Example with ser. No.: 12 06 3A 02:
12 - week of production 12
06 - year of production 2006
3A - firmware version 3A
02 - hardware version 02
1.4 Beckhoff Identification Code (BIC)
The Beckhoff Identification Code (BIC) is increasingly being applied to Beckhoff products to uniquely identify
the product. The BIC is represented as a Data Matrix Code (DMC, code scheme ECC200), the content is
based on the ANSI standard MH10.8.2-2016.
KL2502, KL2512 7Version: 4.2
Foreword
Fig.1: BIC as data matrix code (DMC, code scheme ECC200)
The BIC will be introduced step by step across all product groups.
Depending on the product, it can be found in the following places:
• on the packaging unit
• directly on the product (if space suffices)
• on the packaging unit and the product
The BIC is machine-readable and contains information that can also be used by the customer for handling
and product management.
Each piece of information can be uniquely identified using the so-called data identifier
(ANSIMH10.8.2-2016). The data identifier is followed by a character string. Both together have a maximum
length according to the table below. If the information is shorter, spaces are added to it. The data under
positions 1 to 4 are always available.
The following information is contained:
Item
Type of
no.
information
1 Beckhoff order
number
2 Beckhoff Traceability
Number (BTN)
3 Article description Beckhoff article
4 Quantity Quantity in packaging
5 Batch number Optional: Year and week
6 ID/serial number Optional: Present-day
7 Variant number Optional: Product variant
...
Explanation Data
identifier
Beckhoff order number 1P 8 1P072222
Unique serial number,
see note below
description, e.g.
EL1008
unit, e.g. 1, 10, etc.
of production
serial number system,
e.g. with safety products
number on the basis of
standard products
S 12 SBTNk4p562d7
1K 32 1KEL1809
Q 6 Q1
2P 14 2P401503180016
51S 12 51S678294104
30P 32 30PF971, 2*K183
Number of digits
incl. data identifier
Example
KL2502, KL25128 Version: 4.2
Foreword
Further types of information and data identifiers are used by Beckhoff and serve internal processes.
Structure of the BIC
Example of composite information from item 1 to 4 and 6. The data identifiers are marked in red for better
display:
BTN
An important component of the BIC is the Beckhoff Traceability Number (BTN, item no.2). The BTN is a
unique serial number consisting of eight characters that will replace all other serial number systems at
Beckhoff in the long term (e.g. batch designations on IO components, previous serial number range for
safety products, etc.). The BTN will also be introduced step by step, so it may happen that the BTN is not yet
coded in the BIC.
NOTE
This information has been carefully prepared. However, the procedure described is constantly being further
developed. We reserve the right to revise and change procedures and documentation at any time and without prior notice. No claims for changes can be made from the information, illustrations and descriptions in
this information.
KL2502, KL2512 9Version: 4.2
Product overview
2 Product overview
2.1 KL2502 - Introduction
Fig.2: KL2502
Two-channel pulse width output terminal 24 V DC, positive switching
The KL2502 output terminal modulates the pulse width of a binary signal, and outputs it electrically isolated
from the K-bus. The mark/space ratio is prescribed by a 16 bit value from the automation device. The output
stage is protected against overload and short-circuit. The Bus Terminal contains two channels that indicate
its signal state by means of light emitting diodes. The LEDs are driven in time with the outputs, and show the
duty factor by their brightness.
KL2502, KL251210 Version: 4.2
2.2 KL2512 - Introduction
Product overview
Fig.3: KL2512
Two-channel pulse width output terminal 24 V DC, negative switching
The KL2512 Bus Terminal enables direct connection of different ohmic loads. The output signal is a pulsewidth modulated voltage. The typical load of an LED group or an incandescent lamp is connected between
the positive side of the supply voltage and the output of the KL2512. Via the fieldbus the output can be set
independently for two channels with a resolution of more than 30,000 steps. The PWM frequency can be
changed. The power transistors switch the ground connection and are electrically isolated from the internal
K-bus.
KL2502, KL2512 11Version: 4.2
Product overview
2.3 KL2502, KL2512 - Technical data
Technical data KL2502 KL2512
Number of outputs 2
Rated load voltage 24VDC (20V…29V)
Connected potential 24V 0V
Load type Resistive, inductive resistive
Max. output current (per channel) 0.1A (short-circuit proof, 1A driver compo-
Base frequency 1 ... 20kHz, default: 250Hz
Duty factor 0…100%
Resolution max. 10bit
Electrical isolation 500V (K-bus/field voltage)
Current consumption from the K-bus typ. 18mA
Load voltage current consumption typ. 10mA
Bit width in process image 48 I/O: 2 x 16bit data (2 x 8bit control/status)
Configuration No address setting,
Weight approx. 50g
Permissible ambient temperature range
during operation
Permissible ambient temperature range
during storage
Permissible relative air humidity 95%, no condensation
Dimensions (HxWxD) approx. 15mm x 100mm x 70mm (width aligned: 12mm)
Mounting [}15]
Vibration/shock resistance conforms to EN 60068-2-6 / EN 60068-2-27
EMC immunity/emission conforms to EN61000-6-2/ EN61000-6-4
Protection class IP20
Installation position variable
Approval CE
nent)
(TON > 750ns, T
configuration via the Bus Coupler or the controller
0°C ... + 55°C
-25°C ... + 85°C
on 35mm mounting rail according to EN60715
ATEX [}24]
IECEx
cULus
> 500ns)
OFF
1.5A
0…100%
CE
ATEX [}24]
2.4 Basic Function Principles
The KL2502 output terminal modulates the pulse width of a binary signal. The peripheral side of the
electronics is electrically isolated from the internal K-bus, and therefore also from the fieldbus. The cycle
(base frequency) and the pulse/pause ratio are configurable. 16-bit values can be specified for setting
purposes via the process image of the controller.
In the delivery state the KL2502 terminal occupies 6bytes in the process image. The mapping of the KL2502
can be set by means of the controller or by the Bus Coupler's configuration interface using the Beckhoff
KS2000 configuration software.
In addition to PWM mode, the KL2502 can also be operated in FM mode (frequency modulation), or with
pulse direction setting for stepper motor control (Frq-Cnt pulse mode).
The default setting of the terminal in delivery state is PWM mode with a base frequency of 250Hz and a
resolution of 10bit.
The LEDs indicate the operating state of the associated terminal channels.
• green Run LED:
◦ On: normal operation
◦ Off: Watchdog timer overflow has occurred. If no process data are transmitted by the Bus Coupler
for 100ms, the green LEDs go out. The output assumes a user-specified voltage (see Feature
register).
KL2502, KL251212 Version: 4.2
Process data
Input format:
KL2502: Two's complement representation (integer -1 corresponds to 0xFFFF)
The ratio of duty cycle/period is specified with a maximum resolution of 10bit.
KL2512: 16bit unsigned integer
Output value Process data
KL2502 KL2512*
0% Duty Cycle 0x0000 (0
50% Duty Cycle 0x3FFF (16383
100% Duty Cycle 0x7FFF (32767
) 0x7FFF (32767
dec
) 0x3FFF (16383
dec
) 0x0000 (0
dec
) 0xFFFF (65535
dec
) 0xBFFF (49151
dec
) 0x8000 (32768
dec
*) The KL2512 passes through the output values (0…100% duty cycle) twice.
2.5 Operation modes
The operating mode of the terminal is set via feature register R32 [}34].
Product overview
)
dec
)
dec
)
dec
PWM mode
2 channels can be operated in the PWMx modes. Note that the operating mode and the cycle duration for
both channels are identical.
PWMH
In PWM mode, the ratio of duty cycle to cycle duration is determined by the process data.
100% duty cycle corresponds to process record 0x7FFF. The cycle duration can be specified during
operation via register R2 [}32]. It is loaded after a system start-up from register R35 [}34] (SEEROM) and
entered into R2.
The frequency range covers 245Hz to 20kHz (0xFA0 in R2 corresponds to 250Hz) with a resolution of
10bit at 245Hz, 976Hz and 3.9kHz.
PWML
In PWM mode, the ratio of duty cycle to cycle duration is determined by the process data. 100% duty cycle
corresponds to process record 0x7FFF (32767). The cycle duration can be specified during operation via
register R2 [}32]. It is loaded after a system start-up from register R35 [}34] (SEEROM) and entered into
R2.
The frequency range is from 2Hz to 250Hz (250Hz corresponds to 0x01F4 in R2).
KL2502, KL2512 13Version: 4.2
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