BECKHOFF KL3041 User Manual
Operating instructions for
KL3041, KL3042 and KL3044
Single-, Two- and Four-Channel Analog Input Terminals
Measuring range: 0 to 20 mA
and
KL3051, KL3052 and KL3054
Single-, Two- and Four-Channel Analog Input Terminals
Measuring range: 4 to 20 mA
Version: 3.3
Date: 2013-03-27
Table of contents
Table of contents
1. Foreword 1
Notes on the documentation 1
2. Technical data 2
3. Connection 3
KL3041 and KL3051 3
KL3042 3
KL3052 4
KL3044 and KL3054 4
4. ATEX - Special conditions 5
5. Functional description 6
6. Terminal configuration 8
7. Register Description 9
General Description of Registers 9
Terminal-specific register description 12
Control and Status byte 15
Register communication 16
8. Appendix 18
Mapping 18
Register Table 21
Support and Service 22
KL304x and KL305x
Foreword
Foreword
Notes on the documentation
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 following notes and explanations are
followed when installing and commissioning these components.
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. For that reason the
documentation is not in every case checked for consistency with
performance data, standards or other characteristics. In the event that it
contains technical or editorial errors, we retain the right to make alterations
at any time and without warning. 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.
Delivery conditions
In addition, the general delivery conditions of the company Beckhoff
Automation GmbH apply.
Trademarks
Beckhoff
XFC
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 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.
Copyright
© Beckhoff Automation GmbH.
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.
®
, TwinCAT®, EtherCAT®, Safety over EtherCAT®, TwinSAFE®,
®
and XTS® are registered trademarks of and licensed by Beckhoff
KL304x and KL305x 1
Technical data
Technical data KL3041 KL3051 KL3042 KL3052 KL3044 KL3054
Number of inputs 1 1 2 2 4 4
Power supply 24 VDC via the power contacts
Signal current 0..20mA 4..20mA 0..20mA 4..20mA 0..20mA 4..20mA
Technology single-ended
Internal resistance
Surge voltage resistance 35 V max.
Resolution 12 bits
Conversion time
Meas. error (total meas. range)
Electrical isolation 500 V (K-Bus/signal voltage)
Current consumption from K-
Bus
Bits width in process image
Configuration no address or configuration settings
Weight approx. 70 g
Operating temperature 0°C ... +55°C
Storage temperature -25°C ... +85°C -40°C ... +85°C -25°C ... +85°C
Relative humidity 95 % no condensation
Vibration / shock resistance according to EN 60068-2-6 / EN 60068-2-27
EMC resistance burst / ESD according to EN 61000-6-2 / EN 61000-6-4
Installation position
Protection class IP20
Approvals CE, cULus, ATEX, GL
Technical data
typically 80 Ω + diode voltage 0.7V
~ 1 ms ~ 2 ms ~ 4 ms
< ± 0.3% (of the full
scale value)
typically 65 mA
Input: 1 x 16 bits of
data
(1 x 8 bit
control/status
optional)
any
< ± 0.30% (at 0°C ...
+55°C)
< ± 0.75% (at utilization
of the extended
temperature range)
Input: 2 x 16 bits of
data
(2 x 8 bit
control/status
optional)
-25°C ... +60°C
(extended
temperature range)
0°C ... +55°C
(according to cULus
for Canada and USA)
0°C ... +55°C
(according to ATEX,
see special
conditions)
< ± 0.3% (of the full
scale value)
Input: 4 x 16 bits of
data
(4 x 8 bit
control/status
optional)
0°C ... +55°C
2 KL304x and KL305x
Connection
Connection
KL3041 and KL3051
KL3042
KL304x and KL305x 3
Connection
KL3052
KL3044 and KL3054
4 KL304x and KL305x
ATEX - Special conditions
ATEX - Special conditions
Observe the special conditions for the intended use of
Beckhoff fieldbus components in potentially explosive areas (directive 94/9/EU)!
WARNING
• 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 - 55°C for the use of
Beckhoff fieldbus components in potentially explosive areas!
• Measures must be taken to protect against the rated operating voltage being ex-
ceeded by more than 40% due to short-term interference voltages!
• The individual terminals may only be unplugged or removed from the Bus Termi-
nal 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 discon-
nected if the supply voltage has been switched off or if a non-explosive atmosphere is ensured!
• The fuses of the KL92xx power feed terminals may only be exchanged if the sup-
ply 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!
Operation of the Bus Terminal System in potentially explosive areas (ATEX)!
Note
Pay also attention to the continuative documentation
Notes about operation of the Bus Terminal System in potentially explosive areas (ATEX)
that is available in the download area
of the Beckhoff homepage http://www.beckhoff.com!
KL304x and KL305x 5
Functional description
Functional description
The analog input terminals
- KL304x process signals in the range between 0 and 20 mA
- KL305x process signals in the range between 4 and 20 mA
with a resolution of 12 bits (4095 increments). They can supply the sensors
from voltage fed in via the power contacts. The power contacts can
optionally be supplied via the standard supply or via a feed terminal with
electrical isolation.
Process data output format In the delivery state the process data are shown in two's complement form
(integer -1 corresponds to 0xFFFF). Other display types can be selected
via the feature register (e.g. sign/amount representation, Siemens output
format).
Measured value Output
KL304x KL305x Decimal Hexadecimal
0 mA 4 mA
10 mA 12 mA
20 mA 20 mA
0 0x0000
16383 0x3FFF
32767 0x7FFF
LED display The LEDs indicate the operating state of the associated terminal channels.
Green LED: RUN (not applicable for KL3044 and KL3054)
• On: normal operation
• Off: Watchdog-timer overflow has occurred. If no process data is
transmitted to the bus coupler for 100 ms, the green LEDs go out.
Red LED: ERROR
• On: The limit stop of the A/D converter has been reached. The
current is greater than 21.5 mA.
• Off: normal operation
6 KL304x and KL305x
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