Echelon 76510R User Manual

@echelon

Street Light Bridge Integrator’s Guide

SECOND REVIEW DRAFT

078-0439-01A

Echelon, LONWORKS, LONMARK, LonTalk, Neuron, 3120, 3150, LonMaker, and the Echelon logo are trademarks of Echelon Corporation registered in the United States and other countries. 3170 is a trademark of the Echelon Corporation.

Other brand and product names are trademarks or registered trademarks of their respective holders.

Neuron Chips and other OEM Products were not designed for use in equipment or systems, which involve danger to human health or safety, or a risk of property damage and Echelon assumes no responsibility or liability for use of the Neuron Chips in such applications.

Parts manufactured by vendors other than Echelon and referenced in this document have been described for illustrative purposes only, and may not have been tested by Echelon. It is the responsibility of the customer to determine the suitability of these parts for each application.

ECHELON MAKES AND YOU RECEIVE NO WARRANTIES OR CONDITIONS, EXPRESS, IMPLIED, STATUTORY OR IN ANY COMMUNICATION WITH YOU, AND ECHELON SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of Echelon Corporation.

Echelon Corporation

www.echelon.com

Welcome

Intelligent street lighting uses electronic ballasts, power line communications hardware, and local network controllers that are interconnected with specialized control and reporting software. A street lighting network establishes two-way communications with each lighting fixture so that you can control the lighting level of each fixture, turn it on and off, and monitor its condition.

The luminaires in a street lighting network use a L communications channel for the network, which is managed by an Echelon

.LON® SmartServer, known as the Segment Controller because it controls segments of the street lighting network. To extend the network across lowvoltage step-down distribution transformers, Echelon introduces a power line and radio frequency (RF) wireless hybrid device, the Street Light Bridge module.

This document describes the elements of the Echelon street lighting solution, including the Street Light Bridge module and the Segment Controller.

Audience

This document assumes that you understand basic networking and that you have some experience working with an understand the basics of a low-voltage power distribution network.

FCC Compliance

If the wide-are network (WAN) Card will be integrated into an American National Standards Institute (ANSI) Internet protocol (IP) Meter, and used within the United States of America, then the complete ANSI IP Meter (including the WAN Card) must comply with United States Federal Communications Commission (FCC) regulations. In addition, the accompanying documentation for the complete product would need to include a notice such as the following:

(078-0345-01E). This document

.LON SmartServer and use its

ORKS

Platform

ONWORKS networks and the tools and components that

get.adobe.com/reader.

(078-0183-01B). This manual

PDF format. To view the

, which you can

Street Light Bridge Integrator’s Guide iii

This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules per sections

15.107 and 15.109. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer’s instruction manual, may cause interference with radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, you are encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and the receiver.

• Connect the equipment into an outlet on a circuit different from that

which the receiver is connected.

• Consult the dealer or an experienced radio/television technician for help.

Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.

RF Statements

This equipment also complies with the limits for wireless devices per FCC sections 15.203, 15.205, 15.207, 15.209 and 15.247. It uses frequency 2.4 GHz per Institute of Electrical and Electronics Engineers (IEEE) standard 802.15.42006, and uses a frequency bandwidth from 2400 MHz to 2483.5 MHz.

This equipment complies with the FCC RF radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with a minimum distance of 20 centimeters between the radiator and your body.

This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

Table of Contents

Welcome.........................................................................................................iii

Audience ........................................................................................................iii

Related Documentation ................................................................................iii

FCC Compliance............................................................................................iii

RF Statements............................................................................................... iv

Introduction........................................................................................................ 9

The Echelon Street Lighting Solution ........................................................ 10

The Segment Controller ........................................................................11

Luminaires and Street Light Controllers ............................................12

Street Light Bridge Modules ................................................................ 12

Benefits of Managed Street Lighting.......................................................... 13

Examples................................................................................................ 14

Street Lighting Solution Restrictions ......................................................... 15

Installation for the Street Lighting Solution .................................................. 17

Overview ....................................................................................................... 18

New Installations ......................................................................................... 18

Step 1: Install the Segment Controller ................................................20

Step 2: Install Luminaires .................................................................... 20

Step 3: Install Street Light Bridge Modules........................................ 21

Step 4: Complete Installation ............................................................... 22

Existing Installations ..................................................................................22

Verifying Successful Installation ................................................................22

Example Installations.................................................................................. 24

Basic Installation................................................................................... 24

Extending a Basic Installation ............................................................. 24

Adding Multiple RF Hops .....................................................................25

Setting Up the Segment Controller................................................................. 27

Placing the Segment Controller in Standalone Mode................................ 28

Placing a Network in Standalone Mode............................................... 28

Network Limitations in Standalone Mode........................................... 28

Configuring the LonWorks Channel for Power Line Repeating ............... 29

Copying Resource Files................................................................................ 30

Automatically Discovering Devices............................................................. 30

Planning for the Street Lighting Solution ...................................................... 33

Security Planning......................................................................................... 34

General Network Communications Security .......................................34

Network Security for Device Installation ............................................35

Device Upgrade Planning............................................................................ 36

Network Management Planning ................................................................. 36

Defining the Networking Channels...................................................... 36

Signal Strength ...............................................................................37

Defining the Media Access Protocol .....................................................37

Preparing the Segment Controller ....................................................... 38

Preparing the Street Light Bridge Modules ........................................ 38

Preparing the Luminaires..................................................................... 39

Device Discovery.................................................................................... 39

Defining Repeating................................................................................ 40

PL/PL Repeater ............................................................................... 40

RF/RF Repeater............................................................................... 41

Street Light Bridge Integrator’s Guide v

PL/RF Repeater............................................................................... 41

Scheduling.............................................................................................. 42

Device and Network Recovery Planning .................................................... 42

Scenario 1: Loss of SLB A .....................................................................43

Scenario 2: Brief Loss of SLB B............................................................ 43

Scenario 3: Prolonged Loss of SLB B ...................................................43

Simulating Communications Errors........................................................... 44

Error Codes................................................................................................... 45

Managing a Street Lighting Network ............................................................. 47

Manually Installing a Street Lighting Network ........................................48

Creating Devices.................................................................................... 48

Entering Device Locations and Neuron IDs ........................................49

Selecting Devices ................................................................................... 49

Installing Devices with Smart Network Management .......................50

Enabling Smart Network Management ........................................50

Installing Devices............................................................................ 51

Checking Device Installation Status .............................................51

Troubleshooting Street Lighting Network Installation............................. 53

Maintaining a Street Lighting Network..................................................... 53

Analyzing a Power Line Repeating Network....................................... 54

Adding Devices ......................................................................................64

Upgrading Devices................................................................................. 64

Replacing Devices .................................................................................. 67

Decommissioning Devices ..................................................................... 69

Setting Devices Offline.......................................................................... 71

Testing Devices...................................................................................... 72

Querying Devices ............................................................................73

Winking Devices.............................................................................. 75

Deleting Devices .................................................................................... 76

Controlling a Street Lighting Network........................................................... 77

Scheduling Overview ...................................................................................78

Configuring the Real-Time Clock ......................................................... 79

Setting the SmartServer Time ....................................................... 79

Entering the Location of the SmartServer .................................... 82

Creating Event Schedulers ................................................................... 83

Adding Data Point Preset Values......................................................... 87

Selecting Data Points ............................................................................ 88

Creating Scheduled Events................................................................... 90

Creating Exception Schedules .............................................................. 92

Creating One-Time Exceptions ...................................................... 92

Creating Exceptions........................................................................ 95

Demonstrating a Street Lighting Schedule.............................................. 105

Creating the Weekday Schedule......................................................... 106

Creating the Weekday Daily Schedule ........................................ 107

Creating the Weekday Exception Schedule ................................ 109

Creating the Weekend and Holiday Exception Schedules................ 113

Copying Event Schedulers to Other SmartServers .................................120

Interoperable Interface for the Street Light Bridge ......................................123

Interface...................................................................................................... 124

Output Variables ................................................................................. 124

Input Variables.................................................................................... 124

Cryptography License.....................................................................................129

License ........................................................................................................ 130

Glossary...........................................................................................................131

Street Light Bridge Integrator’s Guide vii

Introduction

This chapter introduces the Echelon Street Lighting Solution.

Street Light Bridge Integrator’s Guide 9

The Echelon Street Lighting Solution

Energy and maintenance costs are increasing for municipal street lighting. Recent studies show that the electricity used for street lighting can account for up to 40% of municipal electric bills. With an estimated 90 million street lights in Europe and 63 million in North America, efficient use of energy for street lighting is important, both for economic reasons and for environmental reasons. Fortunately, components and systems are now available to manage, monitor, and reduce that electricity demand.

Such a system incorporates several key elements: electronic ballasts, power line communications hardware, and local network controllers that are interconnected with specialized control and reporting software. Together, they create a flexible and powerful control system that simplifies day-to-day operations and facilitates the implementation of cost-cutting strategies. Establishing two-way communications with each lighting fixture in a street lighting network allows you to control the lighting level of each fixture, turn it on and off, and monitor its condition.

Because each luminaire in a street lighting network is already connected to the power grid, defining a power line communications channel for the network is a straightforward way to establish two-way communications with each lighting fixture. However, in many countries, there are a limited number of luminaires per low-voltage service distribution transformer, and, in general, a power line channel cannot maintain communications across a transformer.

Echelon introduces the Echelon wireless hybrid device that allows communications to bridge the low-voltage service distribution transformers, and manage an extended street lighting network.

Figure 1 on page 11 shows part of a basic street lighting network, with a SmartServer Segment Controller, several street lights, a service distribution transformer, and a pair of Street Light Bridge Modules. The Segment Controller uses power line communications to communicate with the street light luminaires and the Street Light Bridge modules. The Street Light Bridge modules use radio frequency communications to communicate with each other, and thus provide a communications bridge across the service distribution transformer.

Street Light Bridge module

: a power line and

10 Introduction

Communications

Segment

Controller

Power Line

Street

Light

Bridge

Radio Frequency Communications

Transformer

Service

Distribution

Figure 1. A Basic Street Lighting Network

Street

Light

Bridge

Because the Street Light Bridge module provides both ISO/IEC 14908-1 Control Network Protocol power line communications and IEEE 802.15.4 (2.4 GHz) radio frequency (RF) wireless communications, the street lighting network can leverage the existing power line circuits to communicate with the luminaires, and create small RF bridges to bypass the service distribution transformers. Each Street Light Bridge module manages RF communications with other Street Light Bridge modules, so that you do not need to set up and manage a complex RF network – you simply install Street Light Bridge modules to extend power line communications for the street lighting network.

You manage and control the street lighting network using an Echelon SmartServer, known as the Segment Controller because it controls segments of the street lighting network. A Segment Controller can consolidate data from half a dozen or more service distribution transformers in a municipal residential environment, allowing you to manage and control up to 200 devices – luminaires and Street Light Bridge modules. For larger street lighting networks, you can install additional Segment Controllers.

The Segment Controller

The Segment Controller is a SmartServer 2.0 (or later) that is configured to manage a street lighting network. You use it to configure the power line channel for repeating, so that each luminaire and Street Light Bridge module can forward messages to luminaires and to Street Light Bridge modules within the network, and you use it to define operational schedules for the luminaires.

See Chapter

Setting Up the Segment Controller Managing a Street Lighting Network Street Lighting Network

, on page 77, for more information about the Segment

, on page 47, and Chapter 6,

, on page 27, Chapter 5,

Controlling a

Street Light Bridge Integrator’s Guide 11

Controller. See the about the SmartServer.

i.LON SmartServer 2.0 User's Guide

Luminaires and Street Light Controllers

Each street light in an intelligent street light network must be able to communicate over a L luminaire must include a L an Echelon Power Line Smart Transceiver). If the luminaire does not already

include power line communications, you can add a street light controller either the luminaire or the street light pole to provide power line communications.

A luminaire in a street lighting network remains on until it is commissioned by the Segment Controller. After it is commissioned, the luminaire turns on or off based on the schedule defined for it by the Segment Controller.

ONWORKS power line communications channel. Thus, each

ONWORKS power line communications chip (such as

Street Light Bridge Modules

A Street Light Bridge module is a power line channel device that extends the communications range of the Segment Controller. A Street Light Bridge module uses the Institute of Electrical and Electronics Engineers (IEEE) wireless personal area network standard 802.15.4 for radio frequency (RF) communications to allow it to bypass service distribution transformers and extend the street lighting network.

for more information

The primary function of a Street Light Bridge module is act as a repeater for the street lighting network. A Street Light Bridge module can repeat network packets on the power line channel, an RF channel, or both. The Segment Controller determines both the route and channel type that the Street Light Bridge module should use for repeating.

Figure 2 on page 13 shows a simple repeating chain that could be used to relay a network management command from the Segment Controller to a target device (a luminaire in this case, but it could be a Street Light Bridge module). In this example, the repeating chain consists of Repeating Device 1 (a Street Light Bridge module), which relays the message to Repeating Device 2 (a repeatingenabled luminaire), which relays the command to Repeating Device 3 (a Street Light Bridge module), which relays the message to the target device (a luminaire). A luminaire enabled for repeating would use power line repeating. A Street Light Bridge module could use power line repeating or forward the message using an RF channel to another Street Light Bridge module.

Street light controllers that provide power line communications are available from companies such as Superior Electronic Lighting Controllers (SELC Ireland Limited), Koninklijke Philips Electronics.N.V., ROMlight™ International Inc, SCS StreetLight Control Solutions, S.L., Citylone, Luminext BV, and Siteco Beleuchtungstechnik GmbH.

12 Introduction

PL-20 Channel

Device

Repeating

Device 1

Repeating

Device 2

Hop Hop Hop

Device

Repeating Chain

Repeating

Device 3

Figure 2. An Example Repeating Network

Each time that a message is repeated, on either channel type, is a

repeater hop

A message within a street lighting network must be able to reach its destination in eight or fewer hops. That is, there can be no more than eight repeater hops on the path (power line, RF, or both) between the Segment Controller and the luminaire for which a message is destined.

Figure 2 shows three hops between

the Segment Controller and the target luminaire.

From a L

ONWORKS network point of view, a Street Light Bridge module acts like

any other power line device: It has a number of network variables that are used to provision the Street Light Bridge module and collect status and statistics.

Installation of a Street Light Bridge module is similar to installation for any power line device. You must add it to the Segment Controller, either by providing the Segment Controller with the Neuron ID for the Street Light Bridge module, or by allowing the Segment Controller to automatically discover and commission the Street Light Bridge module. In either case, power and RF communication LEDs on the Street Light Bridge module provide a visual cue to the installer that the Street Light Bridge module is operational. Additional configuration of the Street Light Bridge module is generally not necessary, but advanced configuration options are available.

Target Device

Benefits of Managed Street Lighting

A managed street lighting network can offer many benefits, including:

• Electricity use can be reduced – in one installation, by as much as 45%, which in turn resulted in a 30% reduction in streetlight electricity costs (US$ 80 000 per year for this installation).

Street Light Bridge Integrator’s Guide 13

• Reduction in carbon dioxide (CO tons per year (corresponding to the 45% reduction in electricity use).

• Lamp failures can be identified within hours, reducing average lamp downtime by as much as 90%.

• Alarms can be triggered when lamp voltage exceeds recommended levels, preventing future lamp failures.

• Reduction in lamp replacement costs – for one installation that uses electronic ballasts that regulate high-pressure sodium lamps, lamp replacement costs were reduced by 20%.

• Because software enables most operations to be performed remotely, the number of onsite maintenance operations can be reduced – in one installation, by at least 30%.

The SmartServer as the Segment Controller can serve as a gateway for a variety of devices types. It provides:

• Universal connectivity for devices attached to it, making data available to a city’s IT system.

• Local device monitoring and control through built-in scheduling, alarming, and data logging applications.

• An astronomical clock, which is used to automatically switch lamps on and off, thus reducing lamp burning hours and saving energy (compared to a fixed scheduler or to photocells).

) emissions – in one installation, by 70

The SmartServer is the streetlight segment controller and logs and reports lamp failures, lamp behavior (dimming level and voltage), energy use, and burning hours. It could also collect information from traffic and weather sensors to adapt lamp dimming levels. The astronomical clock switches lamps off and on depending on the position of the sun. Lamps are dimmed at a fixed time, using the SmartServer’s internal scheduler, during low activity hours at night. This highly efficient method of controlling light levels results in significant energy savings. Lamp lifetime is extended due to the way electronic ballasts regulate the lamp.

Examples

Cities, counties, and other local authorities need ways to contain their expenses and limit local taxes while increasing the level of service and security they provide to citizens.

For example, the portion of the United Kingdom budget that is related to streetlight services is estimated at more than UK£ 280 million per year, of which 40 percent is spent on energy. As another example, the electricity costs for the city of Los Angeles, California, with 270 000 streetlights, is estimated at over US$ 17 million per year. Streetlights are the main electricity consumer in a modern city.

In Milton Keynes, U.K., the managed street lighting system includes dimming controls that lower light output by 2 lux between the hours of 10 PM (22h00) and 5 AM (05h00). As a result, the city has reduced its electricity use by 30%. Furthermore, Milton Keynes installed white light lamps that, in addition to

14 Introduction

offering far longer operating life, have helped the city improve its closed-circuit television (CCTV) image capturing system for increased public safety.

As stated by the city of Oslo, Norway, in November 2004, cities that take advantage of today’s new technologies and solutions can reduce the overall costs associated with streetlight networks by almost 50%, while increasing the quality of service and safety. The city of Oslo and its energy supplier have shown that deploying a solution based on electronic programmable and dimmable ballasts that identify and communicate failures over power lines using a standardized

protocol can pay for itself immediately.

Street Lighting Solution Restrictions

The following restrictions apply to a street lighting network:

• Each Segment Controller supports up to a total of 200 devices (luminaires plus Street Light Bridge modules).

• A Street Light Bridge module must be within 85 meters (275 feet) of another Street Light Bridge module and should have direct line of sight in all seasons.

• Each Segment Controller supports up to eight repeating hops to any device (luminaire or Street Light Bridge module). However, during installation, there can be no more than six hops (power line or RF) between any luminaire and the Segment Controller. After installation, it is possible to add hops (power line or RF), up to the maximum of eight, between a luminaire and the Segment Controller.

Source: HBS Case Study, Netherfield Improved Lighting System, Milton Keynes Council, May

2007.

Source: Hafslund presentation, November 2004.

Street Light Bridge Integrator’s Guide 15

Installation for the Street Lighting

Solution

This chapter describes installation for a street lighting network.

Street Light Bridge Integrator’s Guide 17

Overview

The process for installing a street lighting network includes the following basic tasks:

• Install a Segment Controller

• Install luminaires

• Install Street Light Bridge modules, as needed

For a typical new installation, you install the Segment Controller first. However, you could install luminaires (or have already existing luminaires), and then install the Segment Controller. In either case, you install Street Light Bridge modules, as needed, to enable and extend the network. A single Segment Controller can support up to 200 devices, including both luminaires and Street Light Bridge modules.

For an existing installation, typically the luminaires and the Segment Controller are already installed. In this case, you can add additional luminaires to define additional network segments, or you can install Street Light Bridge modules to enable and extend the communications range for the network.

To decide when to install a Street Light Bridge module, you generally install luminaires and add them to the Segment Controller (or allow the Segment Controller to automatically discover and commission the luminaires), then verify that they were all commissioned. If any of them could not be commissioned, install a Street Light Bridge module near one of the commissioned luminaires (to be sure that the Segment Controller can communicate with the newly installed Street Light Bridge module). Then, you install a companion Street Light Bridge module at the luminaire that could not be commissioned so that the Segment Controller can discover and commission it.

If there are additional uncommissioned luminaires after the installation of the first pair of Street Light Bridge modules, you can add additional Street Light Bridge modules, for example, at the end of the first uncommissioned street light chain and the start of the next chain.

You can repeat these three steps many times to install a complete street lighting solution. Typically, you install hundreds or thousands of luminaires, a small number of Segment Controllers, and dozens or hundreds of Street Light Bridge modules. How many Street Light Bridge modules are required depends on the number of luminaires each service distribution transformer supports, and on the kind of network topology that is required for the street lighting solution.

New Installations

Figure 3 on page 19 shows an overview of the basic process for installing intelligent street lights with Echelon’s Street Light Bridge technology. The process includes the following basic steps:

1. Install a Segment Controller

2. Install luminaires

3. Install Street Light Bridge modules, as needed

18 Installation for the Street Lighting Solution

Alternatively, you can install the luminaires, and then install the Segment Controller. However, this document does not describe details for this alternate installation scenario.

START

Install i.LON

i.LON Segment

Controller is in

Acquisition Mode to

discover luminaires and

SLB modules

Install Luminaires

Install luminaires

i.LON Segment

Controller discovers

lamps and turns each off

YES

All

Install Luminaires

Install luminaires

Each lamp turns on

Install i.LON

i.LON Segment

Controller discovers as

many lamps as it can,

and turns each one off to

indicate that

communications are

established

Lamps Off?

Install SLB

Install a Street Light

Bridge module on a

previously installed

luminaire; install another

Street Light Bridge within

line of sight of the first

DONE

Figure 3. Basic Street Lighting Installation Process

Street Light Bridge Integrator’s Guide 19

After your initial network of the Segment Controller and luminaires is defined, you can add Street Light Bridge modules to extend the communications range of the network.

Step 1: Install the Segment Controller

Configure the Segment Controller (see Chapter 3,

Controller

lighting solution. For example, you can install it on one of the street light poles or utility poles (typically below the neutral space) within the area for the street lighting solution. Ensure that the Segment Controller has power.

Place the Segment Controller into Acquisition Mode; see

Discovering Devices

Controller continually attempts to discover devices (luminaires and Street Light Bridge modules) on the power line network. In Acquisition Mode, the Segment Controller’s Service LED flashes at 4 Hz.

As the Segment Controller establishes communications with each luminaire and commissions it, the Segment Controller turns the lamp off.

Note that if you install luminaires first, all of the lamps within the network stay on until you install the Segment Controller. Some installations might require several days of installation time, so some of the lamps could remain on for one or more days.

Recommendation: For installations in which the luminaires are managed by monitoring software (such as Streetlight.Vision Data Collect) and have group switching established, install the Segment Controller during the day so that the schedule defined by the monitoring software can specify the luminaire’s behavior (that is, the schedule should specify that lamps are off during the day) as the Segment Controller establishes communications with each luminaire. Thus, you can receive visual confirmation that the Segment Controller has established communications with each luminaire.

, on page 27) and install it at any convenient location for the street

on page 30. While in Acquisition Mode, the Segment

Setting Up the Segment

Automatically

When all of the lamps are off, the installation is complete. For any that do not turn off, proceed to Step 3 to install Street Light Bridge modules; the Segment Controller will discover and commission the installed luminaires through the Street Light Bridge modules.

Step 2: Install Luminaires

Install one or more luminaires. Each luminaire’s lamp should turn on to indicate that it has power.

Allow the Segment Controller to discover and commission each installed luminaire. If you install the luminaires before the Segment Controller, record each luminaire’s physical location so that you can enter this information into the SmartServer Device Web page for each luminaire. For example, record the luminaire’s GPS coordinates, pole ID, or map grid reference.

If you install the Segment Controller before any of the luminaires, the Segment Controller will discover and commission each luminaire as it is installed. If a given lamp does not turn off within approximately two minutes, you should assume that the Segment Controller cannot communicate with the luminaire, and you should proceed to step 3.

20 Installation for the Street Lighting Solution

If you install the luminaires before the Segment Controller, the Segment Controller will discover and commission all of the luminaires; however, this process could take some time.

After an installed luminaire is discovered and commissioned by the Segment Controller, the lamp should turn off. For any that do not turn off, proceed to Step 3 to install Street Light Bridge modules; the Segment Controller will discover the installed luminaires through the Street Light Bridge modules.

Step 3: Install Street Light Bridge Modules

Install a Street Light Bridge module to extend the communications range of the Segment Controller.

Return to any previously installed luminaire for which the lamp is off (that is, it has communications with the Segment Controller). Install the Street Light Bridge module on the luminaire or on a pole near the luminaire, and record its physical location (GPS coordinates, pole ID, or map grid reference) and its Neuron ID (the barcoded number printed on or attached to the module); or alternatively, let the Segment Controller automatically discover and commission the Street Light Bridge module.

You can install the Street Light Bridge module in the luminaire’s photocell receptor after removing the photocell. For luminaraires that do not have a photocell receptor, you need to add a locking-type photocontrol receptacle that

conforms to the ANSI C136.10 standard. receptor or locking-type photocontrol receptacle, and turn the module ¼ turn clockwise to lock it into position.

Insert the module into the photocell

The Street Light Bridge module has a green LED to indicate that it is receiving power. In addition, if this LED is on solid, the Street Light Bridge module has been discovered and commissioned by the Segment Controller; if this LED is flashing slowly, the Street Light Bridge module has not yet been commissioned.

Install a second Street Light Bridge module on a luminaire (or on a nearby pole)

not

for which the lamp is on (that is, the luminaire does with the Segment Controller). This second Street Light Bridge module should have direct line-of-sight with the previously installed Street Light Bridge module. Ensure that the two modules are within 85 meters (275 feet) of one another.

Verify that the newly installed Street Light Bridge module’s amber LED is on to indicate that the module has good radio frequency (RF) communication with a previously installed module; see the newly installed Street Light Bridge module does not have a sufficient RF signal with a nearby Street Light Bridge module, reinstall the Street Light Bridge module in a different location (perhaps closer to or within a different lineof-sight of a previously installed Street Light Bridge module).

After you install the second Street Light Bridge module, wait a few minutes for the Segment Controller to discover and commission it. When the Street Light Bridge module’s green LED is on solid, the module has been discovered and commissioned. Within a few more minutes, one or more lamps should turn off as

Verifying Successful Installation

have communications

on page 22. If

Locking-type photocontrol receptacles are available from companies such as Ripley Lighting

Controls (for example, their 5927 or 5926 Receptacle With Cast Housing can accommodate the Street Light Bridge module).

Street Light Bridge Integrator’s Guide 21

the Segment Controller discovers and commissions the luminaires. If all of the lamps are off, the installation is complete.

For those lamps that do not turn off, install additional Street Light Bridge modules to further extend the communications range of the Segment Controller.

If a newly installed Street Light Bridge module does not cause any lamps to turn off (perhaps because the newly installed module exceeds the maximum hop count or range), it is likely that you need return to step 1 to install a new Segment Controller.

Step 4: Complete Installation

After all of the luminaires, the Segment Controller, and the Street Light Bridge modules are installed, you can establish remote communications with the Segment Controller and can manage the installed network. For example, you can modify the installation information (the Neuron IDs and physical location information) for each of the luminaires and Street Light Bridge modules, and define schedules for the lights within the network. These tasks are typically performed by a network integrator.

Recommendation: For installations in which each luminaire has its photocell removed to allow network communications to manage the luminaires (for example, a typical US installation), install a small number of luminaires (perhaps 20 to 30) and Street Light Bridge modules each day so that you can minimize the amount of time that any luminaire remains on (out of communications with the Segment Controller).

For installations in which the luminaires are managed by monitoring software (such as Streetlight.Vision Data Collect) and have group switching established, normal switching operations control the lamps’ behavior (that is, they are off during the day and on at night). Thus, for such preconfigured networks, you can install as many luminaires as required for the project without concern for the amount of time that any luminaire remains on.

Existing Installations

Installation for existing street lighting networks is similar to installation for new networks. In general, you can add new luminaires and Street Light Bridge modules to add new segments to the network, or you can relocate, reassign, or replace existing luminaires or Street Light Bridge modules based on the needs of the network.

If a luminaire or Street Light Bridge module fails, you can use the Segment Controller Web pages to determine which device is bad. You can physically replace the failing device, and then replace it in the Segment Controller by assigning a new Neuron ID to it and recommissioning it. See Chapter

Managing a Street Lighting Network

these tasks.

, on page 47, for more information about

Verifying Successful Installation

You can verify a successful Street Light Bridge installation in two ways:

• Verify the states of the power LED and the RF signal LED

22 Installation for the Street Lighting Solution

• Query the status of the Street Light Bridge module from the Segment Controller

See

Testing Devices

Controller to verify Street Light Bridge installation.

Both Street Light Bridge LEDs are off initially, but the green power LED turns on as soon as possible after you supply power to the device. The state of the power LED depends on the state of the Street Light Bridge module:

• If the Street Light Bridge module is configured and running normally, the power LED is on solid.

• If the Street Light Bridge module is not configured, but is otherwise operating normally, the power LED flashes at a ½ Hz rate.

• If there is an error during initialization, or if the cause of reset was a watchdog reset, the power LED flashes at a 4 Hz rate. You can manually reset the device to clear the cause of reset.

Generally, although a rapidly flashing power LED indicates some problem, the Street Light Bridge module operates normally if it can. Thus, you should be able to query the error log and attempt to fix the problem.

The orange RF signal LED is used during installation to indicate whether the Street Light Bridge module can establish RF communications with a nearby Street Light Bridge module. If so, the RF signal flashes in a pattern that represents the signal quality, as shown in

on page 72 for more information about using the Segment

Figure 4.

Figure 4. RF Signal Quality as Represented by the RF Signal LED

The flashing pattern of the RF signal LED allows the installer to confirm good RF communications with nearby Street Light Bridge modules without having to return to the Segment Controller.

However, these RF communications could possibly be with an unrelated street lighting network that uses a different which you installed the Street Light Bridge module. Thus, you should ensure that the Street Light Bridge module can communicate with its Segment Controller.

By default, both LEDs turn off after one hour. You can modify this timeout value by updating the nciLedTimeout configuration network variable. Setting this configuration network variable to zero disables LED shutoff (that is, the LEDs remain on or flashing indefinitely).

Street Light Bridge Integrator’s Guide 23

Segment Controller than the network into

Example Installations

You can install Street Light Bridge modules in almost any configuration to provide power line and radio frequency communications for street lights within a street lighting solution.

In the figures, the arrows represent RF communications between the Street Light Bridge modules. Although the street lights in the figures are shown in straight lines, they could be in any physical configuration.

Basic Installation

Figure 5 shows a basic installation with a Segment Controller and two Street Light Bridge modules. The Segment Controller uses the power line communications channel for the nearest set of luminaires, and two Street Light Bridge modules provide the communications bridge across the service distribution transformer to cross electrical phases.

Figure 5. Basic Street Light Bridge Installation

Extending a Basic Installation

A single Street Light Bridge module can communicate with more than one companion Street Light Bridge module to define a more complex configuration. Figure 6 on page 25 shows an extension to the configuration shown in Figure 5. A single Street Light Bridge module communicates with three Street Light Bridge modules to further extend the range of the Segment Controller and provide communications to a greater number of luminaires. communications with luminaires that do not share a power line connection with the Segment Controller.

24 Installation for the Street Lighting Solution

Figure 6 also shows

Figure 6. Extending the Street Light Bridge Installation

Adding Multiple RF Hops

Because Street Light Bridge modules provide communications across power line boundaries, you can connect them in a series to provide maximum range extension. Figure 6. By adding Street Light Bridge modules in series as shown in the bottom portion of line and RF communications for almost any physical configuration of luminaires in a street lighting solution.

Figure 7 shows such an extension from the configuration shown in

Figure 7, you can create complex networks to provide power

Figure 7. Adding Multiple RF Hops

Street Light Bridge Integrator’s Guide 25

26 Installation for the Street Lighting Solution

Setting Up the Segment Controller

This chapter describes the tasks required to set up the Segment Controller.

Street Light Bridge Integrator’s Guide 27

Placing the Segment Controller in Standalone Mode

A street lighting network is a power line repeating network, which requires that the Segment Controller operate in standalone mode. This mode allows the Segment Controller to operate as the exclusive network manager of the system, and to establish and maintain the appropriate repeating chains. A

is the path a message must travel on the PL-20 or RF channel from the

chain

Segment Controller to one or more repeating devices (luminaires or Street Light Bridge modules) before reaching the target device (a luminaire or a Street Light Bridge module).

In standalone mode, the Segment Controller controls the network management commands sent to the devices attached to its channel (note that for a network operating in LNS mode, LNS would handle these commands). In standalone mode, the Segment Controller can directly download the application image file to the devices and commission, set the application state (online/offline), wink, test, and reset the devices attached to its channel.

repeating

Placing a Network in Standalone Mode

To set a network to standalone mode using the SmartServer Web pages, perform the following steps:

1. Open the SmartServer Web pages, as described in Chapter 3 of the

SmartServer 2.0 User’s Guide

2. Click the Net network to display the Lon Display Property page.

3. From the Setup tab, select Standalone.

4. Click Submit. A dialog appears informing you that the SmartServer is switching to standalone mode.

It could take several minutes for the SmartServer to switch to standalone mode. After the SmartServer has switched to standalone mode, the dialog closes and you can continue preparing your SmartServer for the network installation.

Network Limitations in Standalone Mode

Managing a power line repeating network in standalone mode has the following restrictions:

i.LON

• Network is limited to a maximum of approximately 200 devices.

• Network is limited to a single channel.

28 Setting Up the

Segment

Controller

• Network cannot have a router attached to the channel.

• Network does not use LNS management.

• Devices cannot be configured with LNS Plug-ins

• Network cannot be connected to any other network management tool

through the network interface or remote network interface.

• L

ONWORKS network variable connections are not supported. A network

in standalone mode functions strictly as a master-slave system. This differs from the standard LNS mode in which the devices attached to the SmartServer’s channel can communicate with each other and the SmartServer in a peer-to-peer manner.

Configuring the LonWorks Channel for Power Line Repeating

For a power line repeating network, the LON channel attached to the SmartServer must be configured as a PL-20C or a PL-20N channel and repeating must be enabled on the channel. To configure the channel, perform the following steps:

1. Expand the Net network, and then click the LON channel to display the Lon Network Property page.

2. From the Setup tab, select the PL-20C, PL-20N, or other appropriate channel type from the Channel Type dropdown listbox.

Important: The channel type that you select must match the channel type required by local regulations for the area of device deployment. The channel type must also match the channel settings for all devices that will participate in power line communications with the Segment Controller.

3. Select the Repeating checkbox to enable repeating on the channel.

4. If a network message fails, a data point and its device are marked offline. You can select the Use Minimal Offline Time checkbox so that all the data points on the offline device with pending network messages (read/write requests, polls, or heartbeats) are marked offline and network messages are not sent to them. Thus, network performance is not impacted by an offline device.

You can also set the minimum period of time (in seconds) that the SmartServer waits before transmitting network messages to offline data points. During this period, an offline device transmits an OFFLINE

Street Light Bridge Integrator’s Guide 29

status in response to data point requests. After the Minimal Offline Time elapses, the SmartServer sends a read/write request to one offline data point. If the read/write request succeeds, the data point and its device are marked online, and all cached read/write requests for the offline data points on the device are executed. If you do not configure this property on a power line repeating channel, it is set to 60 seconds.

5. Optionally, you can set the Use Offline Delay property to specify the period of time (in seconds) that the SmartServer waits before marking a data point and its parent device offline (red) in the SmartServer tree after the LON driver detects that the data point is offline.

For example, if you poll a data point every 5 minutes and you set Use Offline Delay to 1 hour, it takes 12 polls for the data point and its parent device to be marked offline—even though the LON driver detected that it could not communicate with the data point after the first poll.

6. Optionally, you can click Advanced to set the retry timer and retry counts that determine the frequency in which network messages are re-sent to a device after no confirmation of delivery is received. Although you can change these properties, it is recommended that you use the default transmit timer (512 ms) and the default retry count (3).

7. Click Submit.

Copying Resource Files

The Segment Controller needs a copy of the resource files for each device type (luminaire and Street Light Bridge module) in the street lighting network. You can obtain the appropriate resource files for the Street Light Bridge modules from the Echelon Web site; you can obtain the appropriate resource files for each luminaire type from the manufacturer.

To copy these files to the Segment Controller:

1. Open an FTP connection to the Segment Controller. See the

SmartServer 2.0 User’s Guide

the SmartServer.

2. Copy the files from the downloaded (or otherwise provided) resource file to the /lonworks/Import and /lonworks/types folders in the SmartServer.

For the /lonworks/Import folder, Street Light Bridge module files are copied to the /Echelon subfolder. For a luminaire, its files are copied to a folder defined by the manufacturer.

for more information about using FTP with

Automatically Discovering Devices

If you want the Segment Controller to automatically discover and commission luminaires and Street Light Bridge modules within the network, you can place the Segment Controller in Acquisition Mode. To enable this mode, perform the following steps:

i.LON

1. Open the SmartServer Web pages, as described in Chapter 3 of the

SmartServer 2.0 User’s Guide

30 Setting Up the

Segment

i.LON

Controller

+ 103 hidden pages