HMS Networks Intesis KNX User manual

M-Bus Meters

USER MANUAL

Issue date: 06/2018 r1.1 ENGLISH

IntesisTM KNX –M-Bus User Manual r1.1 EN

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.

IntesisTM KNX –M-Bus User Manual r1.1 EN

This information is subject to change without notice

URL https://www.intesis.com

3 / 17

Gateway for the integration of M-Bus devices into KNX home

automation systems.

ORDER CODE

LEGACY ORDER CODE

INKNXMEB0100000

IBKNXMEB0100000

INKNXMEB0200000

IBKNXMEB0200000

INKNXMEB0600000

IBKNXMEB0600000

INKNXMEB1200000

IBKNXMEB1200000

 IntesisTM KNX –M-Bus User Manual r1.1 EN 
 
 
 
 
© HMS Industrial Networks S.L.U - All rights reserved 
This information is subject to change without notice 
 
 URL https://www.intesis.com 
 
 
 4 / 17 
 
INDEX 
 
1Description ...............................................................................................................................................5 
 Introduction.......................................................................................................................................5 
 Functionality .....................................................................................................................................6 
 Gateway’s capacity ..........................................................................................................................7 
2KNX System.............................................................................................................................................8 
 Description........................................................................................................................................8 
 Points definition................................................................................................................................8 
3Connections .............................................................................................................................................9 
 Powering the device.......................................................................................................................10 
 Connection to KNX.........................................................................................................................10 
 Connection to M-Bus......................................................................................................................10 
 Connection to the configuration tool...............................................................................................10 
4Set-up process and troubleshooting ......................................................................................................11 
 Pre-requisites .................................................................................................................................11 
 Intesis MAPS. Configuration & monitoring tool for Intesis KNX series ..........................................11 
4.2.1 Introduction.............................................................................................................................11 
4.2.2 Connection..............................................................................................................................11 
4.2.3 Configuration tab ....................................................................................................................12 
4.2.4 Signals....................................................................................................................................12 
4.2.5 Sending the configuration to Intesis .......................................................................................13 
4.2.6 Diagnostic...............................................................................................................................13 
 Set-up procedure............................................................................................................................15 
5Electrical & Mechanical Features...........................................................................................................16 
6Dimensions ............................................................................................................................................17 
 
 

IntesisTM KNX –M-Bus User Manual r1.1 EN

This information is subject to change without notice

URL https://www.intesis.com

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1 Description

Introduction

This document describes the integration of M-Bus meters with KNX home automation systems using the gateway

Intesis KNX - M-Bus.

The aim of this integration is to make accessible M-Bus devices signals and resources from a KNX network, as if it

was a part of the own KNX system and vice-versa. To do it so, Intesis performs as a one more KNX device, sending

and receiving telegrams to group addresses in the KNX network.

Intesis incorporates and embeded M-Bus level converter, so no extra hardware is required.

Configuration is carried out using the configuration software IntesisTM MAPS.

This document assumes that the user is familiar with KNX and M-Bus technologies and their technical terms.

Integration of MBUS devices

to KNX home automation systems

IntesisTM KNX –M-Bus User Manual r1.1 EN

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Functionality

Intesis polls, either continuously or only when ordered from the KNX, the M-Bus devices to obtain updated readings

for the points configured in it (the points corresponding to measures and states of the meters in the integration points

list explained later in this document). With every read, the new values received are updated in the Intesis's memory

and become updated in the KNX side. When a change in any point configured as write-enabled in Intesis is detected

(this is written from the KNX side), the corresponding action in the M-Bus device will be performed. These actions

can be: force a polling of a specific M-Bus device or force a polling of all M-Bus devices.

The polling of a specific M-Bus device, or of all M-Bus devices, can be forced in any moment from KNX side by

writing a 1 in the corresponding KNX object specially enabled for this purpose in the Intesis.

The automatic continuous polling of all M-Bus devices can be activated/deactivated writing from KNX in a specific

KNX object specially enabled for this purpose in the Intesis.

Other M-Bus information accessible from KNX, using specific KNX objects of the Intesis, is:

•Bus activity (indicates if meters are currently being polled or if polling is in stand-by).

•M-Bus status of every meter (this M-Bus status is sent by the own meter with every poll and indicates the

internal status, manufacturer specific in every case).

These are the main features of the M-Bus interface of Intesis:

•Embedded level converter. Direct connection to M-Bus devices with no extra hardware required.

•Scan option to automatically detect M-Bus devices and its available registers.

•Import/Export of M-Bus device templates.

•MBUS-/+ two wires (plug-in terminal bloc with screws) connection.

•Baud rate configurable from 300 to 9600 bps (allowed baud rates in M-Bus. The devices are normally

configured at 2400 bps at the factory).

•Primary or secondary addressing allowed.

•Useful timeouts and specific parameters to make the interface widely compatible with many meter's

peculiarities found usually between different manufacturers.

•Polling of the meters can be continuously, either configured in the own Intesis or you can activate/deactivate

continuous polling of the meters from KNX side using a special datapoint.

•You can force a polling of the meters (refresh of readings) in any moment from KNX side using special

datapoints: one datapoint to force a polling of all the meters, and one specific datapoint per meter to force

the polling of the individual meter.

•Intesis can also be configured to make a single polling of the meters (refresh of readings) at start up.

•For each meter, a datapoint is available in KNX indicating communication error with the meter, also a general

communication error datapoint is available (that will be active whenever the communication with one or

more meters has failed).

•Fully flexible configuration of the registers to poll in the meter, to adapt to any meter.

Every meter, depending on manufacturer and model, offers different type of signals from the mentioned before. To

know what signals offers the meter and of what type, to be able to integrate those wanted, refer to the device technical

documentation. Anyway, and to ease and speed up the identification of the signals offered by any device (and of

what type), the scan option is highly recommended or the import of templates too.

IntesisTM KNX –M-Bus User Manual r1.1 EN

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URL https://www.intesis.com

7 / 17

Gateway’s capacity

Intesis capacity is listed below:

Element

version

120

version

Notes

Type of KNX devices

KNX TP-1

Communication with KNX TP-1 networks.

Number of KNX

Objecs

250

500

1500

3000

Maximum number of points that can be

defined in the virtual KNX device inside the

gateway.

Type of M-Bus

devices

M-Bus Slave devices

Those supporting M-Bus EN-1434-3

standard.

Number of M-Bus

slave devices

120

Number of M-Bus slave devices supported

by the gateway.

Number of M-Bus

signals

250

500

1500

3000

Number of M-Bus signals (readings in the

meters) that can be read from Intesis.

IntesisTM KNX –M-Bus User Manual r1.1 EN

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URL https://www.intesis.com

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2 KNX System

In this section, a common description for all Intesis KNX series gateways is given, from the point of view of KNX

system which is called from now on internal system. Connection with the MBUS system is also called from now on

external system.

Description

Intesis KNX connects directly to the KNX TP-1 bus and performs as one more device into the KNX system, with the

same configuration and operational characteristics as other KNX devices.

Internally, the circuit part connected to the KNX bus is opto-isolated from the rest of the electronics.

Intesis KNX receives, manages and sends all the telegrams related to its configuration to the KNX bus.

When a change in a signal of the external system is detected, a WRITE telegram is sent to the KNX bus (addressed

with the group address associated to the corresponding group object), in order to maintain both systems synchronised

in every moment.

The status of the KNX bus is checked continuously and, if a bus drop-down is detected, for example due to failure in

the bus power supply, after the KNX bus is restored again, Intesis will send READ telegrams to group addresses of

all communication objects marked with flag ‘Ri’. The behaviour of each individual point into Intesis is determined by

the flags configured for the communication object. See details below.

Points definition

Every KNX object in configuration has following KNX properties:

Property

Description

Descriptive information about the communication object or signal.

Object

function

Information on range of values for the group object.

DPT

Datapoint type. It is the KNX data type used to encode the signal's value. It will depend

on the type of signal associated in the external system in every case.

Group

It is the KNX group to which the point is associated. It is also the group to which the

read (R), write (W), transmit (T), update (U) and read on init (Ri) flags are applied. It is

the sending group.

Listening

addresses

They are the addresses that can write on the group object, apart of the main group

address.

Read. If this flag is activated, READ telegrams of this group address will be accepted.

Read on Init. If this flag is activated, the object will trigger corresponding READ request

(on associated group address) on initialization.

Write. If this flag is activated, WRITE telegrams on this group object will be accepted.

Transmit. If this flag is activated, when the group object value changes, due to a change

in the external system, a WRITE telegram of the associated group address will be sent

to the KNX bus.

Update. If this flag is activated, UPDATE telegrams (response to READ telegrams) on

this group object will be accepted.

Active

If activated, the point will be active in Intesis, if not, the behaviour will be as if the point

is not defined. This allows deactivating points without the need of delete them for

possible future use.

These properties are common for all Intesis KNX series gateways. Although each integration may have specific

properties according to the type of signals of the external system.

IntesisTM KNX –M-Bus User Manual r1.1 EN

This information is subject to change without notice

URL https://www.intesis.com

9 / 17

3 Connections

Find below information regarding the Intesis connections available.

Power Supply

Must use NEC Class 2 or Limited Power Source (LPS) and

SELV rated power supply.

Respect polarity applied of terminals (+) and (-). Be sure the

voltage applied is within the range admitted (check table

below). The power supply can be connected to earth but only

through the negative terminal, never through the positive

terminal.

Ethernet / Console (UDP & TCP)

Connect the cable coming from the IP network to the

connector ETH of the gateway. Use an Ethernet CAT5 cable.

If communicating through the LAN of the building, contact the

network administrator and make sure traffic on the port used

is allowed through all the LAN path (check the gateway user

manual for more information). Default IP is 192.168.100.246.

DHCP is enabled by default.

PortA / KNX

Connect the KNX TP-1 bus to connectors A3 (+), A4 (-) of

gateway’s PortA. Respect the polarity.

PortB / M-Bus

Connect the MBUS to connectors B1 (M-), B2 (M+) of

gateway’s PortB. Respect the polarity.

Console Port

Connect a mini-type B USB cable from your computer to the gateway to allow communication between the

Configuration Software and the gateway. Remember that Ethernet connection is also allowed. Check the user manual

for more information.

USB

Connect a USB storage device (not a HDD) if required. Check the user manual for more information.

Ensure proper space for all connectors when mounted (see section 6).

IntesisTM KNX –M-Bus User Manual r1.1 EN

This information is subject to change without notice

URL https://www.intesis.com

10 / 17

Powering the device

A power supply working with any of the voltage range allowed is needed (check section 5). Once connected the RUN

led (Figure above) will turn on.

WARNING! In order to avoid earth loops that can damage the gateway and/or any other equipment connected to it,

we strongly recommend the use of DC power supplies, floating or with the negative terminal connected to earth.

Never use a DC power supply with the positive terminal connected to earth.

Connection to KNX

Connect the KNX TP1 bus to connectors A3 (+) and A4 (-) of gateway’s PortA. Respect the polarity.

Connection to M-Bus

The gateway connects to the M-Bus system directly without requiring any external RS232 or RS485 to M-Bus level

converter.

Connect the M-Bus bus to connectors B1 (M-) and A2 (M+) of gateway’s PortB.

Remember that the Intesis provides 36VDC M-Bus voltage to the bus, acting as a M-Bus level converter as well.

In case there is no response from the M-Bus device(s) to the frames sent by Intesis, check that they are operative

and reachable from the network connection used by Intesis. You can use an EIA-485-to-USB converter and a M-Bus

Master software (such as MBSheet or similar) to double check the M-Bus installation.

Connection to the configuration tool

This action allows the user to have access to configuration and monitoring of the device (more information can be

found in the configuration tool User Manual). Two methods to connect to the PC can be used:

•Ethernet: Using the Ethernet port of Intesis.

•USB: Using the console port of Intesis, connect a USB cable from the console port to the PC.

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