esera automation 1-Wire Controller 1 User manual

Art. No. 11355
All rights reserved. Reproduction as well as electronic duplication of this user guide, complete or in part, requires the written consent of
ESERA GmbH. Errors and technical modification subject to change. ESERA GmbH, ESERA-Automation 2020
www.esera.de 11355 V2.0 R1.0 Manual Page 1 of 5
User Guide
1-Wire Term 1 Modul
Termination for 1-Wire Bus system
Performance characteristics
Active termination for 1-Wire Bus
Small housing 44 x 44 x 25 mm for wall or
flush mounting
screw terminals
Display for Power and Activity (Data)
Termination for all 1-Wire Network sizes
No software required
Simple installation
1 Introduction
Before you start mounting the 1-Wire Term 1 module and putting the device into operation, read these operating
instructions carefully until the end, especially the section of the safety instructions.
2 Product description
In a 1-Wire network, the 1-Wire Term 1 ensures a defined termination at the end of the 1-Wire network and thus a
stable and professional 1-Wire network. The 1-Wire Term 1 is thus a basic component of the 1-Wire network.
Active termination (1-Wire Term 1) is highly recommended for increasing the maximum line length and
improving the system stability of the 1-Wire network, especially with long 1-Wire lines and with a setup in star
or tree topology.
In a 1-Wire network up to 3 pieces of 1-Wire Term 1 modules can be connected. The 1-Wire Term 1 is very
compact and can be ideally installed in a flush-mounted box.
A 1-Wire network should be terminated at the beginning and at the end (like many other bus systems). This
task is fulfilled by the 1-Wire Controller / 1-Wire Gateway or 1-Wire Bus Coupler at the beginning of the 1-
Wire network and the 1-Wire Term 1 at the end of the line. The use of 1-Wire Term 1 prevents reflections at
the cable ends and thus ensures increased system stability of the entire 1-Wire network.
The 1-Wire Term 1 contains a passive and an active terminating resistor for an optimized termination of all 1-
Wire network sizes. The module has an operating voltage and activity display via LEDs. It is designed for
installation in 1-wire networks with standard 3-wire system (GND, 1-wire data and 5 V).
The 1-Wire Term 1 module has overvoltage and reverse polarity protection of the operating voltage and 1-
Wire data line.
Size comparison

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3 Technical Data Sensor
1-Wire Modul: none
Terminating resistor: 3,3 kOhm passiv, plus active function
Operating voltage: 5 VDC +/-10%
Power consumption: max. 5mA
Indicator: Power und Data
Dimensions: 44 x 44 x 25mm (LxWxH)
4 Ambient conditions
Protection system: IP68
Protection class: III
Temperature,Operation: -40°C to +125°C
5 Pin assignment
The 1-Wire Term 1 module requires a 5V power supply for operation.
It is connected with three cables, ground, 1-Wire Data and 5V.
6 Conformity
EN 50090-2-2,
EN 61000-4-2, ESD
EN 61000-4-3, HF
EN 61000-4-4, Burst
EN 61000-4-5, Surge
EN 61000-6-1, interference immunity
EN 61000-6-3, interference radiation
RoHS
7 Integration in 1-Wire Network
The 1-Wire Term 1 module is mounted at the end of a 1-Wire network cable.
If the 1-Wire network is star-shaped, i.e. with several 1-Wire cable sections, a 1-Wire Term 1 module should be
connected to each end.
No more than three 1-Wire Term 1 modules should be used in a 1-Wire network.
7.1 Linear Topology
The design corresponds to the linear topology with the difference that the slaves are connected to the main line
via lines with a length of more than 3 m (branch, stub).
7.2 Star or Tree Topology
Here, the network is divided into several large strings at or near the 1-wire bus coupler / 1-wire controller / 1-wire
hub (bus master). Sensors and actuators (e.g. switching modules) are connected at the end or along the
respective string.
Power
Supply
Sensors and Actuator
Bus
Master
Power
Supply
Sensors and Actuator
Bus
Master

Art. No. 11355
All rights reserved. Reproduction as well as electronic duplication of this user guide, complete or in part, requires the written consent of
ESERA GmbH. Errors and technical modification subject to change. ESERA GmbH, ESERA-Automation 2020
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8 Connection example
Note: Basics and tips for the 1-Wire bus system can be found in our eBook in the shop at :
https://www.esera.de/service-support/1-wire-grundlagen/

All rights reserved. Reproduction as well as electronic duplication of this user guide, complete or in part, requires the written consent of
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9 Reflections in 1-Wire networks
Each junction in a bus system causes an impedance mismatch at the junction. In addition, unwanted reflections
are generated at the ends of a branch or also at the end, which can falsify or partially erase the useful signal. The
longer a branch is, the more the mismatches and reflections appear. From this point of view, the star topology
does not perform well. The different strands form branches with strong mismatching, which influence each other
unfavorably.
The star topology or tree topology is by far the most frequently used in practice, but requires more attention
and care during installation and commissioning. Here the use of correct cable connectors, patch panels and
termination (1-Wire Term 1) is very important.
The preferred topology is the linear topology, since almost no reflections occur at branch lengths of less than
3 m. The highest reliability is achieved with this topology. In practice, however, it is the most difficult and costly
installation to implement. Here, too, termination must be provided at the end of the cable.
The branch topology occupies an intermediate position. Reflections can already be expected here. However,
these do not necessarily have to be disturbing, especially if the length is not too long. In small networks with a
total length of less than 50 m, the choice of the correct topology is not so critical.
All network topologies have in common that the line ends should be terminated. Here the ESERA 1-Wire Term 1
module is a very good and practical solution.
10 Operating conditions
The module may only be operated at the specified voltages and ambient conditions. The device can be operated
in any position. The device is intended for use in dry and dust-free rooms. If condensation is formed, allow at least
2 hours for the unit to acclimatize. Do not operate the module in an environment in which flammable gases,
vapors or dusts are present or could be present.
11 Disposal instructions
Do not dispose of the device in domestic waste! Electronic devices must be disposed of at
the local collection points for electronic waste in accordance with the Directive on Waste
Electrical and Electronic Equipment!
12 Safety instructions
When using products that come into contact with electrical voltage, the valid VDE regulations must be
observed, especially VDE 0100, VDE 0550/0551, VDE 0700, VDE 0711 and VDE 0860
All final or wiring work must be carried out with the power turned off.
Before opening the device, always unplug or make sure that the unit is disconnected from the mains.
Components, modules or devices may only be put into service if they are mounted in a contact proof housing.
During installation they must not have power applied.
Tools may only be used on devices, components or assemblies when it is certain that the devices are disconnected
from the power supply and electrical charges stored in the components inside the device have been discharged.
Live cables or wires to which the device or an assembly is connected, must always be tested for insulation faults or
breaks.
If an error is detected in the supply line, the device must be immediately taken out of operation until the faulty cable
has been replaced.
When using components or modules it is absolutely necessary to comply with the requirements set out in the
accompanying description specifications for electrical quantities.
If the available description is not clear to the non-commercial end-user what the applicable electrical characteristics
for a part or assembly are, how to connect an external circuit, which external components or additional devices can
be connected or which values these external components may have, a qualified electrician must be consulted.
It must be examined generally before the commissioning of a device, whether this device or module is basically
suitable for the application in which it is to be used.
In case of doubt, consultation with experts or the manufacturer of the components used is absolutely necessary.
For operational and connection errors outside of our control, we assume no liability of any kind for any resulting
damage.
Kits should be returned without their housing when not functional with an exact error description and the
accompanying instructions. Without an error description it is not possible to repair. For time-consuming assembly or
disassembly of cases charges will be invoiced.
During installation and handling of components which later have mains potential on their parts, the relevant VDE
regulations must be observed.
Devices that are to be operated at a voltage greater than 35 VDC / 12mA, may only be connected by a qualified
electrician and put into operation.
Commissioning may only be realized if the circuit is built into a contact proof housing.

Art. No. 11355
All rights reserved. Reproduction as well as electronic duplication of this user guide, complete or in part, requires the written consent of
ESERA GmbH. Errors and technical modification subject to change. ESERA GmbH, ESERA-Automation 2020
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If measurements with an open housing are unavoidable, for safety reasons an isolating transformer must be
installed upstream or a suitable power supply can be used.
After installing the required tests according to DGUV / regulation 3 (German statutory accident insurance,
https://en.wikipedia.org/wiki/German_Statutory_Accident_Insurance) must be carried out.
13 Warranty
ESERA GmbH guarantees that the goods sold at the time of transfer of risk to be free from material and workmanship
defects and have the contractually assured characteristics. The statutory warranty period of two years begins from date of
invoice. The warranty does not extend to the normal operational wear and normal wear and tear. Customer claims for
damages, for example, for non-performance, fault in contracting, breach of secondary contractual obligations,
consequential damages, damages resulting from unauthorized usage and other legal grounds are excluded. Excepting to
this, ESERA GmbH accepts liability for the absence of a guaranteed quality resulting from intent or gross negligence.
Claims made under the Product Liability Act are not affected.
If defects occur for which the ESERA GmbH is responsible, and in the case of replacement goods, the replacement is
faulty, the buyer has the right to have the original purchase price refunded or a reduction of the purchase price.
ESERA GmbH accepts liability neither for the constant and uninterrupted availability of the ESERA GmbH or for technical
or electronic errors in the online offer.
We are constantly developing our products further and reserve the right to make changes and improvements to any of the
products described in this documentation without prior notice. Should you require documents or information on older
versions, please contact us by e-mail at i[email protected].
14 Trademarks
All mentioned designations, logos, names and trademarks (including those which are not explicitly marked) are
trademarks, registered trademarks or other copyright or trademarks or titles or legally protected designations of their
respective owners and are hereby expressly recognized as such by us. The mention of these designations, logos, names
and trademarks is made for identification purposes only and does not represent a claim of any kind on the part of ESERA
GmbH on these designations, logos, names and trademarks. Moreover, from their appearance on ESERA GmbH
webpages it cannot be concluded that designations, logos, names and trademarks are free of commercial property rights.
ESERA and Auto-E-Connect are registered trademarks of ESERA GmbH.
15 Contact
ESERA GmbH
Adelindastrasse 20
87600 Kaufbeuren
GERMANY
Tel.: [phone]
Fax: [phone]
www.esera.de
[email protected]
WEEE-Number: DE30249510