nilan MULTILINK User manual

INSTALLATION INSTRUCTIONS
NILAN MULTILINK BY NILAN
Nilan MultiLink (English)
Version 1.10 - 29.08.2019

TABLE OF CONTENTS
General information
Introduction.................................................................................................................................................................................................................................................................................. 3
Please, read this...........................................................................................................................................................................................................................................................3
Disposal of electronic components ....................................................................................................................................................................................................... 3
Reading instructions............................................................................................................................................................................................................................................... 3
Prior to installation...................................................................................................................................................................................................................................................3
Support.................................................................................................................................................................................................................................................................................. 4
Description.....................................................................................................................................................................................................................................................................................5
Nilan MultiLink...............................................................................................................................................................................................................................................................5
Components......................................................................................................................................................................................................................................................................5
Modbus network
Construction of Modbus network.........................................................................................................................................................................................................................7
Modbus construction..............................................................................................................................................................................................................................................7
Modbus cable specification............................................................................................................................................................................................................................. 7
Example: Gateway and two ventilation units.............................................................................................................................................................................. 8
Example: Gateway and two ventilation units in separate buildings...................................................................................................................8
Wiring....................................................................................................................................................................................................................................................................................... 9
Installation
Setup.................................................................................................................................................................................................................................................................................................10
Setting of Modbus addresses....................................................................................................................................................................................................................10
Gateway information..........................................................................................................................................................................................................................................11
Connections...............................................................................................................................................................................................................................................................................12
Connecting the gateway................................................................................................................................................................................................................................. 12
Internet connection with cable................................................................................................................................................................................................................ 13
Wireless internet connection.....................................................................................................................................................................................................................13
Connection to the unit....................................................................................................................................................................................................................................... 13
Documentation......................................................................................................................................................................................................................................................................14
Template for labelling gateway and units................................................................................................................................................................................... 14
Troubleshooting
Communication..................................................................................................................................................................................................................................................................... 15
Troubleshooting communication errors....................................................................................................................................................................................... 15
Modbus network...................................................................................................................................................................................................................................................... 15
2

General information
Introduction
Please, read this
The manual contents may be updated without prior notice.
Bitzer Electronics own the copyrights for this manual. Please, follow the instructions carefully and in
detail. Deviations from the instructions can result in the warranty becoming void and in a lack of
fulfillment of specifications.
Copyright© 2018 Bitzer Electronics A/S. All rights reserved.
Disposal of electronic components
Electronic components must not be thrown out with general waste. Instead they
must be discarded of in accordance with the WEEE directive.
Reading instructions
The following symbols are used to direct the attention of the user to different levels of warnings.
ATTENTION
Important information
CAUTION
Warning! General warning
Definitions:
HW Hardware/electronics
Modbus Application-layer messaging protocol - http://www.modbus.org/specs.php
RS485 Hardware communication standard
Prior to installation
The installer must be familiar with this manual prior to installation. Pay special attention to the fact
that incorrect handling of equipment may cause damage to it due to ESD (electrostatic discharge).
ATTENTION
The Modbus connection should be installed by qualified persons only. All warrantees become
void if the installation is carried out by unqualified persons or if Modbus is installed incorrectly.
Nilan MultiLink (English) BY NILAN
3

Support
For support regarding installation and use of Nilan MultiLink, please contact:
Lodam support
www.lodam.com
Phone: [phone]
ATTENTION
Please note that there is a charge for support unless a fault or an error has been made by
Bitzer.
It is therefore recommended that you take out a support subscription.
4

Description
Nilan MultiLink
Nilan MultiLink enables remote monitoring and control of Nilan ventilation units. Used in, for instance,
apartment buildings, hotels, holiday homes and in places where it is necessary to monitor many
ventilation units.
The units are connected to a gateway via their Modbus connections. The gateway is then connected to
the internet and can be accessed via a secure cloud solution.
Components
The following shows components that may be included in the MultiLink system.
Gateway basic kit - consisting of:
•1 Gateway
• 1 Power supply
• 1 Installation plug
For mounting on DIN rail in electrical switchboard cabinet and for
connection to router.
Gateway basic kit installed in mounting box - consisting of:
•1 Gateway
• 1 Power supply
• 1 Installation plug
• 1 Mounting box
All pre-installed in the mounting box, connection for router.
Gateway kit 3G - consisting of:
•1 Gateway with aerial and space for a SIM card
• 1 Power supply
• 1 Installation plug
For mounting on DIN rail in electrical switchboard cabinet and for
connection via SIM card.
Nilan MultiLink (English) BY NILAN
5

Gateway kit 3G installed in mounting box - consisting of:
•1 Gateway
• 1 Power supply
• 1 Installation plug
• 1 Mounting box
All pre-installed in the mounting box, connection via SIM card
Insulated repeater
To be used if the units do not have the same ground potential.
For mounting on DIN rail in electrical switchboard cabinet.
Insulated repeater in mounting box
To be used if the units do not have the same ground potential.
Pre-installed in the mounting box.
6

Modbus network
Construction of Modbus network
Modbus construction
Modbus (RTU - RS485/EIA485) is established via an enamelled twisted pair of conductors as well as
ground. Data+ and Data- must be in the same twisted pair set, for instance yellow/green or brown/
white in a LIYCY-P cable.
It must be a multi drop connection. Do not use a star connection or similar cabling. There can be up to
10 ventilation units per gateway. Bitzer has junction boxes so conductors and wires can be connected
correctly. The cable from the junction box to the control system should be kept as short as possible in
order to avoid signal reflections.
Modbus cable specification
Communication is half-duplex.
• Max. 250m twisted pair cable, grounded enamelled wire and grounding wire
• Cable type: Belden 941/942 or multi cable LIYCY-P 2*2*0,25 mm2
Nilan MultiLink (English) BY NILAN
7

Example: Gateway and two ventilation units
The example below shows an installation with two units in the same building. It shows the gateway
installed in a mounting box.
D
1
+
D
1
+
D
1
-
D
1
-
G
N
D
G
N
D
D
1
+
D
1
-
G
N
D
D
0
+
D
0
+
D
0
-
D
0
-
G
N
D
G
N
D
D
0
+
D
0
-
G
N
D
Data+
Data-
Internet
LL NN P
E
P
E
L N P
E
2*Modbus
PE +
skærm
L N
DC + (1)
DC – (3)
CN7
Data1+ (A1)
Data2+ (A2)
GND
12Vdc+
Data1- (/B1)
Data2- (/B2)
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
Anlæg 2
Styring
Data+
Data-
CN7
Data1+ (A1)
Data2+ (A2)
GND
12Vdc+
Data1- (/B1)
Data2- (/B2)
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
Anlæg 1
Styring
Data+
Data-
PWR
D+ (2)
D- (1)
GND (5)
GATEWAY
PSU 12V
Skærm
120 Ohm
terminering
120 Ohm
terminering
230VAC
CAUTION
For this solution all ventilation units and the gateway must have joint ground potential.
If they do not have joint ground potential, an insulated repeater must be installed between each unit.
Ground enamelled wires at the gateway.
Example: Gateway and two ventilation units in separate buildings
The example below shows an installation with two units in separate buildings. It shows the gateway
installed in a mounting box.
D
1
+
D
1
+
D
1
-
D
1
-
G
N
D
G
N
D
D
1
+
D
1
-
G
N
D
D
0
+
D
0
+
D
0
-
D
0
-
G
N
D
G
N
D
D
0
+
D
0
-
G
N
D
Data+
Data-
Internet
230VAC
LL NN P
E
P
E
L N P
E
2*Modbus
PE +
skærm
L N
DC + (1)
DC – (3)
CN7
Data1+ (A1)
Data2+ (A 2)
GND
12Vdc+
Data1 - (/B1)
Data2- (/B2)
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
Anlæg 2
Styring
Data+
Data -
CN7
Data1+ (A 1)
Data2+ (A 2)
GND
12Vdc+
Data1 - (/B1)
Data2- (/B2)
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
Anlæg 1
Styring
Data+
Data -
PWR
D+ (2)
D- (1)
GND (5)
GATEWAY
PSU – 12V
120 Ohm
terminerin g
Data+
Data-
Repeater
Data+ Data-
Data+
Data-
Repeater
Data+ Data-
Data+
Data-
Repeater
12Vdc+
GND
12Vdc+
GND
Data+ Data -
12Vdc+
GND
GND
12Vdc+
120 Ohm
terminering
In the example above there is an insulated repeater between each unit. The reason for this is that they
have different ground potentials. You thereby avoid that a potential short circuit of a unit is
transmitted to the rest of the system.
Ground enamelled wires at the gateway.
8

Wiring
You can wire the system in two ways.
One line with an end terminal in the first unit and in gateway:
D
1
+
D
1
+
D
1
-
D
1
-
G
N
D
G
N
D
D
1
+
D
1
-
G
N
D
D
0
+
D
0
+
D
0
-
D
0
-
G
N
D
G
N
D
D
0
+
D
0
-
G
N
D
Data+
Data-
Internet
LL NN P
E
P
E
L N P
E
2*Modbus
PE +
skærm
L N
DC + (1)
DC – (3)
CN7
Data1+ (A1)
Data2+ (A2)
GND
12Vdc+
Data1- (/B1)
Data2- (/B2)
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
Anlæg 2
Styring
Data+
Data-
CN7
Data1+ (A1)
Data2+ (A2)
GND
12Vdc+
Data1- (/B1)
Data2- (/B2)
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
Anlæg 1
Styring
Data+
Data-
PWR
D+ (2)
D- (1)
GND (5)
GATEWAY
PSU 12V
Skærm
120 Ohm
terminering
120 Ohm
terminering
230VAC
Two lines with end terminal in the two outer units and not in gateway:
D
1
+
D
1
+
D
1
-
D
1
-
G
N
D
G
N
D
D
1
+
D
1
-
G
N
D
D
0
+
D
0
+
D
0
-
D
0
-
G
N
D
G
N
D
D
0
+
D
0
-
G
N
D
Data+
Data-
Internet
LL NN P
E
P
E
L N P
E
2*Modbus
PE +
skærm
L N
DC + (1)
DC – (3)
CN7
Data1+ (A1)
Data2+ (A2)
GND
12Vdc+
Data1- (/B1)
Data2- (/B2)
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
Anlæg 2
Styring
Data+
Data-
CN7
Data1+ (A1)
Data2+ (A2)
GND
12Vdc+
Data1- (/B1)
Data2- (/B2)
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
Anlæg 1
Styring
Data+
Data-
PWR
D+ (2)
D- (1)
GND (5)
GATEWAY
PSU 12V
Skærm
120 Ohm
terminering
230VAC
CN7
Data1+ (A1)
Data2+ (A2)
GND
12Vdc+
Data1- (/B1)
Data2- (/B2)
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
Anlæg 2
Styring
Data+
Data-
CN7
Data1+ (A1)
Data2+ (A2)
GND
12Vdc+
Data1- (/B1)
Data2- (/B2)
5
6
1
2
3
4
5
6
1
2
3
4
5
6
1
2
3
4
Anlæg 1
Styring
Data+
Data-
Skærm
120 Ohm
terminering
Nilan MultiLink (English) BY NILAN
9

Installation
Setup
Setting of Modbus addresses
Every ventilation unit must have its own Modbus address.
It is recommended that you change the Modbus addresses so they lie within the interval of 41 - 50.
They will thereby not conflict with the standard Modbus address, 30, which is the standard address for
all Nilan’s ventilation units.
D
1
+
D
1
+
D
1
-
D
1
-
G
N
D
G
N
D
D
1
+
D
1
-
G
N
D
D
0
+
D
0
+
D
0
-
D
0
-
G
N
D
G
N
D
D
0
+
D
0
-
G
N
D
Data+
Data -
GND
Internet 3G
eller Ethernet
230VAC
LL NN P
E
P
E
L N P
E
2*Modbus
PE +
skærm
L N
DC + (1)
DC – (3) PWR
D+ (2)
D- (1)
GND (5)
GATEWAY
PSU – 12V
D
1
+
D
1
-
G
N
D
D
0
+
D
0
-
G
N
D
Data+
Data -
GND
Internet 3G
eller Ethernet
230VAC
L N P
E
2*Modbus
PE +
skærm
L N
DC + (1)
DC – (3) PWR
D+ (2)
D- (1)
GND (5)
GATEWAY
PSU – 12V
Anlæg 1
Modbus adresse
41
Anlæg 2
Modbus adresse
42
Anlæg 3
Modbus adresse
43
Anlæg 4
Modbus adresse
44
2
Terminering
120 Ohm
D
1
+
D
1
-
G
N
D
D
0
+
D
0
-
G
N
D
Data+
Data -
GND
Internet 3G
eller Ethernet
230VAC
L N P
E
2*Modbus
PE +
skærm
L N
DC + (1)
DC – (3) PWR
D+ (2)
D- (1)
GND (5)
GATEWAY
PSU – 12V
Anlæg 1
Modbus adresse
41
Anlæg 2
Modbus adresse
42
Anlæg 3
Modbus adresse
43
Anlæg 4
Modbus adresse
44
2
Terminering
120 Ohm
According to the service menu in the software instructions, the Modbus address of the units can be
changed via the control panel.
ATTENTION
The Modbus address is necessary in the setup of the Nilan MultiLink system. It is therefore
important to make a note of which ventilation unit has been given which Modbus address.
Up to 10 ventilation units can be connected to a gateway.
10

Gateway information
On the back of the gateway there is a label with a MAC
address consisting of 6 set of letters and/ or numbers.
Make a note of this address and the connected apartments.
You will need this information later during setup of the
Nilan MultiLink system.
Example of information noted down:
Designation Gateway ID
Nyvej 2 00:60:e0:6c:98:8f
Designation Modbus address
Ground floor to the
left 41
Ground floor to the
right 42
1st floor to the left 43
1st floor to the right 44
2nd floor to the left 45
2nd floor to the
right 46
3rd floor to the left 47
3rd floor to the right 48
4th floor to the left 49
4th floor to the right 50
Nilan MultiLink (English) BY NILAN
11

Connections
Connecting the gateway
If you have ordered the gateway without a mounting box, a plug with a screw terminal is supplied.
Install the Modbus connection in accordance with the illustration below.
Data+
Data-
GND
Internet
(Et hernet)
L N
DC + (1)
DC – (3) PWR
GATEWAY
(Axiomtek)
PSU (Meanwell)
Serial
Port 2
Serial
Port 1
DC +
DC –
230VAC + PE
D+ (2)
D- (1)
GND (5)
Ethernet
Port 2
Ethernet
Port 1
Not in use
PE
L
N
See IoC installaon
manual
Not in use
If you have ordered the gateway with a mounting box, install the Modbus connection in DO+/- for one
line. For two lines install the other line in DI+/- and remove the end terminal.
D
1
+
D
1
+
D
1
-
D
1
-
G
N
D
G
N
D
D
1
+
D
1
-
G
N
D
D
0
+
D
0
+
D
0
-
D
0
-
G
N
D
G
N
D
D
0
+
D
0
-
G
N
D
Data+
Data-
Internet
(Ethernet)
230VAC
LL NN P
E
P
E
L N P
E
2*Modbus
PE +
skærm
L N
DC + (1)
DC – (3) PWR
D+ (2)
D- (1)
GND (5)
GATEWAY
PSU-12V
120 Ohm
terminering
D
1
+
D
1
-
G
N
D
D
0
+
D
0
-
G
N
D
Data+
Data-
Internet
(Ethernet)
230VAC
L N P
E
2*Modbus
PE +
skærm
L N
DC + (1)
DC – (3) PWR
D+ (2)
D- (1)
GND (5)
GATEWAY
PSU-12V
120 Ohm
terminering
ATTENTION
It is important that the gateway is grounded correctly.
12

Internet connection with cable
Connect the gateway to the internet via a router with a standard Ethernet Cat5e patch cable.
No setup of the router is required apart from the fact that it must have internet connection. The
gateway will automatically establish a connection to the internet and the cloud through the router.
Wireless internet connection
It is recommended that you order the gateway with an integral SIM card. You can install a SIM card
yourself, but it is a somewhat complicated and time consuming task.
When you purchase a gateway with an integral SIM card, it will automatically connect to the internet
and the cloud once it has been plugged in.
If the attached aerial does not reach, it is possible to connect an external aerial, which will provide a
better signal.
Connection to the unit
For most products Modbus connections to Nilan’s units take place via the 8 pole plug for the control
panel. See details in the installation instructions for the unit.
Modbus connection in 8 pole plug
6- Connect Data+
7 - Connect Data -
The plug enables you to fasten all the wires with a cable binder.
If you cannot connect Modbus via the control panel plug, you can connect Modbus directly on the circuit
board of the unit in accordance with the diagram below. For further information, see the wiring
diagram for the unit.
CN7
Data1+ (A1)
Data2+ (A2)
GND
+12V
Data1- (/B1)
Data2- (/B2)
CN8
USB
5
6
1
2
3
4
5
6
1
2
3
4
Data+
Data-
CN7
Data1+ (A1)
Data2+ (A2)
GND
+12V
Data1- (/B1)
Data2- (/B2)
CN8
USB
5
6
1
2
3
4
Data+
Data-
Nilan MultiLink (English) BY NILAN
13

Documentation
Template for labelling gateway and units
Designation Gateway ID (MAC address)
Designation Modbus address
Unit 1:
Unit 2:
Unit 3:
Unit 4:
Unit 5:
Unit 6:
Unit 7:
Unit 8:
Unit 9:
Unit 10:
Designation Gateway ID (MAC address)
Designation Modbus address
Unit 1:
Unit 2:
Unit 3:
Unit 4:
Unit 5:
Unit 6:
Unit 7:
Unit 8:
Unit 9:
Unit 10:
Designation Gateway ID (MAC address)
Designation Modbus address
Unit 1:
Unit 2:
Unit 3:
Unit 4:
Unit 5:
Unit 6:
Unit 7:
Unit 8:
Unit 9:
Unit 10:
14

Troubleshooting
Communication
Troubleshooting communication errors
If a communication error occurs, check the following:
1. Check that the gateway and the ventilation units are powered
2. Check whether the Data+ and the Data- wires have been switched
3. Check that each ventilation unit has its own unique Modbus address in accordance with the template
provided
4. Check that there is activity on LED1 at Ethernet plug 2 on the gateway (the activity must be regular)
5. Check that the gateway is connected to the internet (can you access the internet with a computer
via the Ethernet cable for the gateway)
6. Check that all ventilation units are grounded correctly.
Modbus network
Data+ and Data- refer to ground in each individual control system, which, through the control system,
is connected to protective earthing (PE). The voltage between Data+/Data- and the reference (PE) is
called the common mode voltage. The common mode voltage / the potential difference between
ground points must not exceed 5Vrms AC and DC.
At the gateway, ground connected up to PE ground and. wired to each junction box, but as a rule are not
connected to the control, as this has its own PE ground connection. Check the voltage difference from
the grounded shield to the frame of the steering. If it exceeds 5Vrms, check if the controller is
connected to PE ground via the supply cable. If the voltage is not lowered below 5Vrms via the ground
wire, the frame wire is connected from the cable between the connection box and the controller. Now
the screen and the power line will provide the potential equalization between the control and the
gateway. The frame and screen are brought together at the gateway and in the junction box in order to
handle a slightly larger ground loop current.
Nilan MultiLink (English) BY NILAN
15

Nilan A/S
Nilanvej 2
DK-8722 Hedensted
Tlf. [phone]
Fax [phone]
[email protected]
www.nilan.dk
United Kingdom:
S L Services
25 St Leonards Road, Horsham
RH13 6EH West Sussex
Tlf. [phone]
[email protected]
www.nilanuk.com
Ireland:
Nilan Ireland
Ballylahive, Abbeydorney
Tlf. [phone]
[email protected]
www.nilanireland.ie
Document no.M20_MultiLink_GB Nilan A/S disclaims all liability for potential errors and omissions in printed instructions - or for loss or damages arising from published materials, whether these are due to errors or inexpediency in the publications or they have other causes. Without prior notice Nilan A/S reserves the right to make changes to the products and guides. All trademarks belong to Nilan A/S. All rights reserved.