Intesis INMBSKNX1000000 User guide
KNX
USER MANUAL
Issue date: 05/2018 r1.2 ENGLISH
Intesis
TM
Modbus Server - KNX User Manual r1.2 eng
© HMS Industrial Networks S.L.U - All rights reserved
This information is subject to change without notice
URL https://www.intesis.com
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Important User Information
Disclaimer
The information in this document is for informational purposes only. Please inform HMS Industrial Networks of any
inaccuracies or omissions found in this document. HMS Industrial Networks disclaims any responsibility or liability for
any errors that may appear in this document.
HMS Industrial Networks reserves the right to modify its products in line with its policy of continuous product
development. The information in this document shall therefore not be construed as a commitment on the part of
HMS Industrial Networks and is subject to change without notice. HMS Industrial Networks makes no commitment
to update or keep current the information in this document.
The data, examples and illustrations found in this document are included for illustrative purposes and are only
intended to help improve understanding of the functionality and handling of the product. In view of the wide range
of possible applications of the product, and because of the many variables and requirements associated with any
particular implementation, HMS Industrial Networks cannot assume responsibility or liability for actual use based on
the data, examples or illustrations included in this document nor for any damages incurred during installation of the
product. Those responsible for the use of the product must acquire sufficient knowledge in order to ensure that the
product is used correctly in their specific application and that the application meets all performance and safety
requirements including any applicable laws, regulations, codes and standards. Further, HMS Industrial Networks will
under no circumstances assume liability or responsibility for any problems that may arise as a result from the use of
undocumented features or functional side effects found outside the documented scope of the product. The effects
caused by any direct or indirect use of such aspects of the product are undefined and may include e.g. compatibility
issues and stability issues.
Intesis
TM
Modbus Server - KNX User Manual r1.2 eng
© HMS Industrial Networks S.L.U - All rights reserved
This information is subject to change without notice
URL https://www.intesis.com
3 / 18
Gateway for the integration of KNX TP-1 (EIB) installations into
Modbus RTU and/or Modbus TCP enabled monitoring and
control systems.
ORDER CODE
LEGACY ORDER CODE
INMBSKNX1000000
IBMBSKNX1000000
INMBSKNX2500000
IBMBSKNX2500000
INMBSKNX6000000
IBMBSKNX6000000
INMBSKNX1K20000
IBMBSKNX1K20000
INMBSKNX3K00000
IBMBSKNX3K00000
Intesis
TM
Modbus Server - KNX User Manual r1.2 eng
© HMS Industrial Networks S.L.U - All rights reserved
This information is subject to change without notice
URL https://www.intesis.com
4 / 18
INDEX
1 Description ............................................................................................................................................... 5
Introduction ....................................................................................................................................... 5
Functionality ..................................................................................................................................... 6
Gateway’s capacity .......................................................................................................................... 6
2 KNX interface ........................................................................................................................................... 7
Description ........................................................................................................................................ 7
Points definition ................................................................................................................................ 7
3 Modbus interface ...................................................................................................................................... 8
Description ........................................................................................................................................ 8
Functions supported ......................................................................................................................... 8
Modbus RTU .................................................................................................................................... 8
Modbus TCP ..................................................................................................................................... 8
Address Map .................................................................................................................................... 8
Points definition ................................................................................................................................ 9
4 Connections ........................................................................................................................................... 10
Powering the device ....................................................................................................................... 11
Connection to KNX ......................................................................................................................... 11
Connection to Modbus ................................................................................................................... 11
4.3.1 Modbus TCP ........................................................................................................................... 11
4.3.2 Modbus RTU ........................................................................................................................... 11
Connection to the configuration tool ............................................................................................... 11
5 Set-up process and troubleshooting ...................................................................................................... 12
Pre-requisites ................................................................................................................................. 12
Intesis MAPS. Configuration & monitoring tool for Intesis KNX series .......................................... 12
5.2.1 Introduction ............................................................................................................................. 12
5.2.2 Connection .............................................................................................................................. 12
5.2.3 Configuration tab .................................................................................................................... 13
5.2.4 Signals .................................................................................................................................... 13
5.2.5 Sending the configuration to Intesis ....................................................................................... 14
5.2.6 Diagnostic ............................................................................................................................... 14
Set-up procedure ............................................................................................................................ 16
6 Electrical & Mechanical Features ........................................................................................................... 17
7 Dimensions ............................................................................................................................................ 18
Intesis
TM
Modbus Server - KNX User Manual r1.2 eng
© HMS Industrial Networks S.L.U - All rights reserved
This information is subject to change without notice
URL https://www.intesis.com
5 / 18
1 Description
Introduction
This document describes the integration of KNX installations into Modbus RTU and Modbus TCP systems using the
Intesis Modbus Slave – KNX gateway.
The aim of this integration is to make accessible a KNX TP-1 installation from a Modbus control system or device,
as if it was a part of the own KNX TP-1 (EIB) system and vice-versa.
For this, Intesis acts as a Modbus TCP server or Modbus RTU slave device in its Modbus interface, allowing
read/write points from the Modbus client device(s), and offering this point's values through its KNX interface, acting
in the KNX system as one more KNX device of the system.
Configuration is carried out using the configuration software IntesisTM MAPS.
This document assumes that the user is familiar with KNX and Modbus technologies and their technical terms.
Integration of KNX TP-1 devices or installations into
Modbus RTU Master or Modbus TCP Clients
control and monitoring systems
KNX TP-1
Modbus TCP
Ethernet TCP
Modbus RTU RS485
Modbus RTU RS232
Intesis
TM
Modbus Server - KNX User Manual r1.2 eng
© HMS Industrial Networks S.L.U - All rights reserved
This information is subject to change without notice
URL https://www.intesis.com
6 / 18
Functionality
From the KNX system point of view, in the start-up process of the gateway and also after a detection of a KNX bus
reset, the gateway polls the KNX signals configured to be updated in this situation and maintain the received values
in memory to be served to the Modbus system when requested. It also listens for any KNX telegram related to the
internal points configured in it and acts accordingly to the configuration of the related point.
From the Modbus system point of view, after the start up process, the gateway listens for any read or write request,
and serves any read request or performs any writing request of its internal points received from Modbus system. The
values received from Modbus become available to be read by the KNX system and vice-versa.
Every one of the mentioned Modbus points is associated to a KNX group address. With this, all the Modbus system
is seen as one more KNX device from the KNX system point of view, with the same configuration and operation
characteristics.
When a change in any Modbus point occurs, a WRITE telegram is sent to the associated Group Address in the KNX
bus. See details in section.
When a telegram is received from a KNX Group address associated to a Modbus point, a message is sent
immediately to the corresponding Modbus device to perform the corresponding action.
Gateway’s capacity
Intesis capacity is listed below:
Element
100
version
250
version
600
version
1200
version
3000
version
Notes
Number of KNX
Communication
Objects
100
250
600
1200
3000
Maximum number of KNX
Communication Objects that can
be defined.
Number of KNX Main
Group Addresses
100
250
600
1200
3000
Maximum number of KNX Main
Group Addresses to be used
Number of KNX
Associations
200
500
1200
2400
6000
Maximum number of KNX
Associations
Type of Modbus
Master devices
Modbus RTU (EIA485 or EIA232)
Modbus TCP
Those supporting Modbus
protocol. Communication over
TCP/IP and RTU
Number of Modbus
Master devices
1 Master device per RTU Node
Up to 6 TCP connections
Number of Modbus Master
devices supported by the device
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