BACnet 435 User manual

BACnet Gateway (435)
Installation Guide
Doc. No.: D007500, issue 1
2017-03-30

Copyright © 2017 Helvar Ltd.
All rights reserved.
No part of this document may be reproduced in any form or by any means – graphic, electronic, or mechanical,
including photocopying, recording, taping, or information storage and retrieval systems – without the written
permission of the publisher.
Products that are referred to in this document may be either trademarks and/or registered trademarks of the
respective owners. The publisher and the author make no claim to these trademarks.
While every precaution has been taken in the preparation of this document, the publisher and the author assume
no responsibility for errors or omissions, or for damages resulting from the use of information contained in this
document, or from the use of the software that may accompany it. In no event shall the publisher and the author be
liable for any loss of profit or any other commercial damage caused or alleged to have been caused directly or
indirectly by the information contained in this document.

iii
Contents
1. INTRODUCTION .................................................................................................................................1
1.1. DEVICE LIMITS AND COMPATIBILITY ......................................................................................2
1.2. DESCRIPTION OF THE UNIT ....................................................................................................2
1.2.1. Front panel LEDs...................................................................................................................................3
1.2.2. Button and switches..............................................................................................................................3
1.3. SYSTEM OVERVIEW ..................................................................................................................4
1.3.1. Helvar devices and DALI networks .......................................................................................................5
1.3.2. BACnet/IP network ................................................................................................................................5
2. HARDWARE GUIDE ............................................................................................................................6
3. INSTALLATION...................................................................................................................................8
3.1. INSTALLING THE UNIT ............................................................................................................8
3.2. CONNECTIONS AND WIRING...................................................................................................8
3.2.1. Power supply .........................................................................................................................................9
3.2.2. Communications....................................................................................................................................9
4. ORDER CODES.................................................................................................................................11

iv

Helvar 435 BACnet Gateway: Installation Guide 1
1. Introduction
The 435 BACnet Gateway provides a simple interface to a Helvar router system and allows lighting
system data to appear in a BACnet Building energy Management System (BeMS).
Note: Typically, individual systems (energy control, lighting, boiler and air-conditioning
systems, etc.) are measured separately for CO2accountability. Therefore, installing the
BACnet Gateway and combining the various systems can help an effective BeMS be
more energy efficient and comply with national building regulations.
The 435 allows a Building Management System (BMS) or BeMS to control and monitor the lighting
system as well as obtain device status and group power consumption information. BACnet/IP
clients can easily connect with the gateway via a TCP/IP network.

2
Helvar
| Data is subject to change without notice.
The 435 BACnet Gateway has been specifically designed to expose the ‘router’, ‘group’ and ‘device’
parameters from Helvar routers in a designated workgroup through the TCP/IP network. The
BACnet/IP BMS can use this information to control and monitor the lighting, energy and
environmental conditions.
The unit is designed and manufactured to comply with CE Class A, FCC Class A, WEEE (Waste
Electrical and Electronic Equipment), RoHS (Restriction of Hazardous Substances) regulations
and the identification of a substance as Substance of Very High Concern (REACH).
It also complies with the requirements defined in the Council of the European Union Directive on
the Approximation of the Laws of the Member States relating to Electromagnetic Compatibility
(89/336/EEC). For the evaluation regarding the electromagnetic compatibility, refer to the
Declaration of Conformity certificate (available on request).
1.1. Device limits and compatibility
The 435 BACnet Gateway has the following limitations and compatibility requirements:
•Limits:
oSingle workgroup
oMax. 2 units per workgroup (may require different device instance numbers: see the
User
Guide
).
oMax. 300 groups
oMax. 2000 BACnet/IP points (overall limit)
•Compatibility:
oRouter firmware version 5.2 or above.
oRouter IP addresses need to have the same first and second octets, i.e. ‘10.254.x.x’.
oWeb browsers: Firefox (recommended), Chrome and Internet Explorer.
1.2. Description of the unit
The 435 BACnet Gateway includes internal HTML configuration pages designed to simplify the
engineering and setting of the interface. These pages make it easier to configure the
communication requirements. The connected Helvar routers appear as a single BACnet device in
the BACnet/IP BeMS, whereas the predetermined parameters appear as predetermined BACnet
object types.

Helvar 435 BACnet Gateway: Installation Guide 3
From the configuration pages, you can do the following:
•Identify:
oEach Helvar router in a defined workgroup.
oThe required Helvar router and DALI device
parameters.
oWhich BACnet Object type is assigned to each
parameter.
•Simplify the configuration of the BACnet/IP
communication requirements and allow for connected
routers and devices to appear on the BACnet/IP BMS.
1.2.1. Front panel LEDs
The LEDs on the unit indicate the general status of the BACnet Gateway, including power, ready
and LAN communication activity.
•Power LED
This LED shows the current status of the power applied to the unit.
‘On’ indicates that the 24 VDC power is supplied. ‘Off’ indicates that the power is not supplied
or has failed.
•Ready LED
This LED shows the status of the boot-up
process.
‘On’ indicates that the required files have been
loaded to the RAM disk and that the unit has
successfully booted up. ‘Off’ indicates that the unit is not ready or has failed to boot up.
•Ethernet Activity LED
This LED shows the communication between the unit and the supervisory computer or
controller connected via the Ethernet.
‘On’ indicates incoming communications traffic. ‘Off’ indicates outgoing communications
traffic.
1.2.2. Button and switches
The BACnet Gateway is fitted with a recessed button for rebooting the unit, and with a bank of four
DIP switches. The bank of DIP switches is not functional in this version.
While the reset button does not erase any configuration, we recommend that you use it only if the
software reboot fails.
DIP switches
(not used)
Reset button
Ethernet
Activity LED
Status
LEDs
Power LED
Ready LED

4
Helvar
| Data is subject to change without notice.
435 BACnet Gateway (Router/
DALI to BACnet mapping)
IP Network
BACnetIP networkIP Network
Device
instance
DALI 1
DALI 2
DALI 1 DALI 1
DALI 2
SDIM
Router 910
DMX
Router 920
Predetermined Helvar router and DALI
device points appear as a BACnet object
types in a single BACnet device.
Select Helvar points to clarify between
BACnet network.
Router 905
1.3. System overview
The BACnet Gateway provides direct interface between Helvar routers, including the devices
connected to them (such as ballasts, LED drivers, luminaires and sensors), and a BACnet/IP BMS.
Thus, the BACnet/IP BeMS can access the values recorded in the Helvar 905, 910 and 920 routers
and in the DALI devices.

Helvar 435 BACnet Gateway: Installation Guide 5
1.3.1. Helvar devices and DALI networks
The Helvar 905, 910 and 920 routers use the Ethernet connection as a network backbone to
combine DALI, SDIM and DMX networks. The DALI and SDIM networks appear as Helvar router
subnets in the 435 browser interface.
DALI (Digital Addressable Lighting Interface) is a standardised (IEC 62386) protocol that, among
other things, provides individual addressing and monitoring of lighting devices. It allows you to
connect of up to 64 DALI devices on a single and simple two-wire network and communicate with
them individually, collectively or in groups. You can thus instruct DALI loads to turn on and off and
to dim up and down. Additional operational status information is available from each of them,
confirming its ability to operate effectively or to confirm a fault condition.
SDIM and DMX are low-loss RS485 Type (multistranded, twisted and shielded), three or four cores
and screen networks, max. 1 km cable length.
Tip: For DALI, SDIM and DMX network installation, refer to the Helvar 905, 910 and 920
routers documentation. See also the D5 Recommended Best Practices document for
networking and system guidelines.
1.3.2. BACnet/IP network
Specifically designed for building automation and control networks, the BACnet/IP protocol
provides a standard way of representing the functions from third-party devices to exchange data
over a computer network. It operates on a client/server principle: the BACnet Gateway is the
server, and either a BACnet device or the BACnet Explorer is the client. The network uses
standard cat 5e cabling to transfer ‘service’ requests from each client to the server, which
performs the service and then reports the result to the client. Local IP network policy is used to
address BACnet devices.
Each ‘service’ request includes a default set of ‘objects’. These may represent either a single
physical point or logical groupings of points that perform a specific function. An ‘object’ is simply a
collection of properties (such as ‘Object_Name’, ‘Object_Type’ or ‘Present_Value’) that describe
the behaviour and operation of the BACnet device.
Note: For BACnet compliance details, refer to the
User Guide.
DALI 1
DALI 2
SDIM
DMX (NOT EXPOSED)
905 router
64 devices
N/A
N/A
N/A
910 router
64 devices
64 devices
N/A
N/A
920 router
64 devices
64 devices
252 addresses
512 in/out addresses

6
Helvar
| Data is subject to change without notice.
2. Hardware guide
This hardware provides an interface between Helvar devices (with connected products)
communicating via the DALI protocol and BACnet (BACnet/IP) BMS communicating via Ethernet
protocol.
General
Weight: 330 g per unit, including DIN Rail clips
410 g shipped, including DIN Rail clips
Power input:
9 VDC – 40 VDC
Power consumption:
300 mA @ 12 VDC, 150 mA @ 24 VDC
Default user name:
Admin (case-sensitive)
Default password:
password
(case-sensitive)
Hardware Details
Button: Reset
DIP switch: Not applicable
Indicators: Power, System Ready, Ethernet LAN Activity
Ethernet: 1 × 10/100 Mb/s port via RJ45 connector with 1.5 kV
magnetic isolation
Serial: Not applicable
USB: Not applicable
SD memory card: 1 × internal 2 GB slot for storage expansion
Environmental
Operating temperature: 0 to +70 °C
Storage temperature: –20 to + 80 °C
Relative humidity: Max. 90 %, noncondensing
Regulations: CE Class A, FCC Class A, REACH (Regulation on
Registration, Evaluation, Authorisation and Restriction of
Chemicals – European Chemicals Agency), RoSH
(Restriction of the Use of Certain Hazardous Substances
in Electrical and Electronic Equipment – EU Directive
2002/95/EC)

Helvar 435 BACnet Gateway: Installation Guide 7
ROHS BANNED SUBSTANCES
MAXIMUM LIMIT
(PPM)
Cadmium (Cd) 100
Lead (Pb) 1000
Mercury (Hg) 1000
Hexavalent chromium (Cr[VI]) 1000
Polybrominated biphenyls (PBB) 100
Packing materials: cadmium, lead, mercury, hexavalent chromium and its
components < 100 PPM
100
Dispose of the product and packaging according to WEEE Directive at an appropriate
recycling centre. All parts are recyclable. The printed circuit board may be sent to any
PCB recovery contractor to recover any appropriate metals.

8
Helvar
| Data is subject to change without notice.
3. Installation
This section explains the process of fitting the 435 BACnet Gateway in the required position and
location. It also describes how to connect the cables to ensure that the unit can communicate via
the BACnet/IP BeMS network and the connected devices. Finally, it gives the specific wiring
conventions used by the connected communications protocols and the hardware fitted to the unit.
Note This is a class A product. When installing this product in a residential environment,
ensure that adequate measures are taken to prevent radio interference.
3.1. Installing the UNIT
The unit usually forms part of a larger assembly, and/or may be housed in a floor or wall-mounted
enclosure. It can also be mounted to a DIN Rail in an enclosure using a DIN Rail kit.
Note When fitting this unit as part of a system, refer to the documentation accompanying the
other equipment.
To install the unit using the DIN Rail kit:
1. Fit the DIN Rail kit to the bracket on each side of
the unit using the fixings supplied.
2. Click the unit, complete with the DIN Rail kit, onto
the DIN Rail mounted in the enclosure.
Caution Do NOT mount directly to an enclosure.
3. Connect the power supply to the unit (see
Connections and Wiring).
Caution Before connecting power, ensure that all
connections have been verified and the –V
(0 V) terminal is NOT earthed/grounded.
Note A ‘beep’ indicates the unit has started to
boot up.
4. Connect the unit to the IP network using an
appropriate Cat5e cable (see Connections and
Wiring).
3.2. Connections and Wiring
This product may be supplied mounted in an enclosure
or supplied as an individual part in kit form.
The BACnet Gateway is typically installed as part of a control system using an Ethernet
hub/switch. Category 5 cables can be used for individual line lengths of up to 100 metres.
Caution Before connecting power to the unit, make sure that the Ethernet connection has been
verified and the –V (0 V) terminal of the power connector is NOT earthed/grounded.
DIN Rail
Mounting Kit
Screw
Screw
DIN Rail Clip
4
3

Helvar 435 BACnet Gateway: Installation Guide 9
Shielded RJ45 connectors and screened Category 5 cables are widely available, but specifications
vary. Given the problems that can arise with inadequate cabling, we recommend that you use
ready-made interconnecting cables.
3.2.1. Power supply
Each product requires a 9 VDC – 40 VDC power
supply. When the power is correctly supplied, the
Power LED is illuminated.
3.2.2. Communications
The RJ45 port, indicated by the symbol, is designed for Ethernet LAN.
•Ethernet Communication Port
Each unit contains 10/100 base T port for Ethernet communications via a standard RJ45 type
connector. Connection to an Ethernet hub/switch requires a Category 5 RJ45-to-RJ45 cable
assembly. When connecting to the Ethernet hub/switch, a ‘straight-through’ cable is used.
RJ45 MALE
FROM RJ45
PIN NO.
SIGNAL
COLOUR CODE
(EIA/TIA 568B)
TO RJ45
PIN NO.
1
Transmit+
White/Orange
1
2
Transmit–
Orange
2
3
Receive+
White/Green
3
4
N/A
Blue
4
5
N/A
White/Blue
5
6
Receive–
Green
6
7
N/A
White/Brown
7
8
N/A
Brown
8
The image shows the flat side of RJ45 plug.
When connecting directly to another device supporting 10/100 base T Ethernet
communications protocol, i.e. a laptop or computer used to configure and interrogate the
unit, a ‘crossover’ cable is required.
RJ45 MALE
FROM RJ45
PIN NO.
SIGNAL
COLOUR CODE
(EIA/TIA 568B)
TO RJ45
PIN NO.
1
Transmit+
White/Orange
3
2
Transmit–
Orange
6
3
Receive+
White/Green
1
4
N/A
Blue
4
5
N/A
White/Blue
5
6
Receive–
Green
2
7
N/A
White/Brown
7
Pin 1
Pin 1
V+
9 VDC – 40 VDC
Power Supply
V–

10
Helvar
| Data is subject to change without notice.
RJ45 MALE
FROM RJ45
PIN NO.
SIGNAL
COLOUR CODE
(EIA/TIA 568B)
TO RJ45
PIN NO.
8
N/A
Brown
8
The image shows the flat side of RJ45 plug.

Helvar 435 BACnet Gateway: Installation Guide 11
4. Order Codes
ORDER CODES
DESCRIPTION
435
BACnet Gateway
AMR1 PSU
24 VDC 1 A power supply
435+AMR1 PSU
Combined above 2 items sold as a pack