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LonWorks to Modbus TCP

A FieldServer protocol Gateway that provides data exchange between LonWorks and Modbus TCP. The LonWorks driver allows the FieldServer to transfer data to and from devices using LonWorks protocol. The Modbus TCP Driver allow the FieldServer to tra...
SKU:
FS-QS-1XX1-0154
Max Points
Max Points: 250, 500
LonWorks to Modbus TCP
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LonWorks to Modbus TCP


QuickServer Gateway (LonWorks)

QuickServer is a high performance, fully configurable, cost effective Building and Industrial Automation gateway for integrators to easily interface devices to networks in commercial buildings and industrial plants.

System integrators world-wide have benefitted from the value of the powerful line of interoperability gateways offered by FieldServer. Now, QuickServer adds to that value by running the same robust FieldServer protocol conversion software on a highly cost effective platform backed by the experience, engineering expertise and proven technical support that integrators have come to expect from FieldServer.

QuickServer is available in two series. The FS-QS-10XX Series is preloaded with two BAS drivers (serial, Ethernet and/or LonWorks) from a choice of Modbus RTU, Modbus TCP, BACnet/IP®, BACnet MS/TP, LonWorks®, JCI Metasys® N2 and SNMP. Each QuickServer can handle up to 250 points.

The FS-QS-12XX Series QuickServer is available to use any Serial, Ethernet or LonWorks driver in the extensive FieldServer driver library. The FS-QS-12XX Series can handle up to 500 points and is available with a choice of RS-485, RS-232 or RS- 422 serial ports, KNX or M-Bus, in addition to Ethernet and LonWorks (optional).

Each QuickServer includes browser-based tools to make it easy to set-up QuickServer and perform diagnostics including determination of status, network settings, node information, map descriptors and more. The USB flash drive also includes the Discovery utility to determine what FieldServers are on a network.

Modbus TCP

The Modbus TCP Driver allows the FieldServer to transfer data to and from devices over Ethernet using Modbus TCP Protocol. The Modbus TCP driver uses port 502. This port is not configurable. The driver was developed for Modbus Application Protocol Specification V1.1a" from Modbus-IDA. The specification can be found at www.modbus.org. The FieldServer can emulate both a Client and a Server simultaneously on the same ethernet port.

The information that follows describes how to expand upon the factory defaults provided in the configuration files included with the FieldServer.

There are various register mapping models being followed by various vendors. To cover all these models FieldServer uses the following three Models

  • Modicon_5digit – Use this format where addresses are defined in 0xxxx, 1xxxx, 3xxxx or 4xxxx format. A maximum of 9999 registers can be mapped of each type. This is FieldServer driver’s default format.
  • ADU –Application Data Unit address. Use this format where addresses of each type are defined in the range 1-65536
  • PDU –Protocol Data unit address. Use this format where addresses of each type are defined in the range 0-65535.

The key difference between ADU and PDU is for example if Address_Type is ADU and address is 1, the driver will poll for register 0. If Address_Type is PDU, the driver will poll for address 1.

Note 1: If vendor document shows addresses in extended Modicon (i.e. 6 digit) format like 4xxxxx then consider these addresses as xxxxx (omit the first digit) and use either ADU or PDU

Note 2: The purpose of providing 3 different ways of addressing the Modbus registers is to allow the user to choose the addressing system most compatible with the address list being used. At the protocol level, the same protocol specification is used for all three with the exception of the limited address range for Modicon_5digit.

LonWorks

The LonWorks driver allows the FieldServer to transfer data to and from devices using LonWorks protocol. The FieldServer can emulate either a Server or Client. The FS-B30, QuickServer and SlotServer Series FieldServers have a built-in LonWorks Interface. A Fieldbus connection is available on the FieldServer. The FS-B30 and the SlotServer can handle up to 4096 Network Variables which can be of the Standard Network Variable Types (SNVT) and/or User-defined Network Variable Types (UNVT), and the QuickServer can handle 250 Network Variables (or a limit of 500 for the enhanced model).  

Manuals

FS_8700-21 LonWorks Driver Manual Rev1.33_2016
FS-8704-03_Modbus_TCP
QuickServer Start-up Guide

Datasheets

PDS_Lonworks
FS-8704-03_Modbus_TCP
QuickServer Data Sheet

Resources

LonWorks Communications Interface Technical Manual
Lonworks - CAS - Discovery of Lonworks devices, neuron ID and xif files
Lonworks - CASnote2 - Cummins BC - Work Instruction for Editing Configuration Rev2-Jan2009.
Lonworks - ENOTE0031-LonWorks_Program_ID_Calculation
Lonworks - ENOTE0062-Replacing_Bound_FS_in_Lonmaker
Lonworks - ENOTE0098-LonWorks_Deleting_Key_Files
Lonworks - Lonworks Enumerations
Lonworks - XIF Extractor
Lonworks - xifdump

Additional Information

Lonworks - Jargon Watch

Lonworks – a wide ranging term generally applied to describe the whole technology developed by Echelon. It is used frequently and ambiguously.
LonTalk – A registred trademark belonging to Echelon. They use it as the name of the protocol used for data communications in a Lonworks system. Ie. It is the brandname protocol. Echelon released this protocol so it could be adopted as a standard – ANSI-approved standard EIA/CEA-709.1-A-1999 – SO/IEC Standard 14908 or European standard EN14908.

Lonworks - Why are Lonworks communications so good

The communications between all Lonworks devices is done by means of a proprietry chip (The Neuron chip) made according to one design by one company according to one standard which it wrote on its own. It’s obvious that there are so many less aspects of the data communications process that can go wrong when there is a single entity involved. When a device vendor implements a Lonworks System Interface he simply has to implement the application layer of the data communication process. For almost all other protocols the device vendor must implement the physical layer, data link layer, the Network Layer, The transport Layer, The Session Layer, the Presentation Layer and the Application Layer. You can see how many more areas of risk there are.

When Echelon released the standard, their license terms required anyone who implements it to implement the full standard. The fact that other vendors can’t cherry pick features and services means that even when implemented by other vendors you still have the same strong chance of success.

Lonworks - Software - Lonmaker

 

LonMaker is a Windows GUI based network/device management tool for Echelon LonWorks. It can be used for initial network setup and functioning as a management console on a completed network.

Purchase from Echelon.

LonMaker image

 

Lonworks - Software - NodeUtil

What happens if you need to learn about a Lonworks network and it devices but you haven’t been provided with the database or if you don’t have LonMaker?

NodeUtil is a Lonworks utility that can be used to explore Lonworks networks and devices without having LonMaker. All you need is a device such as an Echelon U10/U20 USB Network Interface.

 

Using NodeUtil you can discover devices , learn about the Domains, SubNets, NodeID’s. You can also upload the XIF file from specific nodes.

 

 

http://i160.photobucket.com/albums/t188/adamrich33/NodeUtil.jpg

 

Download NodeUtil:

Nodeutil v1.24

Nodeutil v1.46

Nodeutil v1.82

You can find all of these downloads on the PASStec homepage here.

Lonworks - Software - XIFdump

Another useful utility is XIFDUMP. It is a report generator (DOS), and it allows you to generate reports (text file) from a XIF files.

Download XIFDUMP:

XIFDUMP

Lonworks - Introduction

LonWorks is not just a protocol or physical layer for communication but an exclusively designed networking technology platform to install, maintain, monitor and sense various automation and control applications. Essentially LonWorks was established for a range of automation functions within buildings such as lighting and HVAC. Invented by Echelon Corporation, the fundamental communications platform, twisted pair signaling technology, power line signaling technology, and IP tunneling method constitutes a global standard documented ISO/IEC 14908.

Lonworks - LonWorks Protocol

A set of services is offered by the LonWorks Protocol that enables all devices in the network to transmit and receive messages to and from other devices via their application program— requiring no acquaintances with network topology or the other devices’ names, addresses, or functions. Besides, LonWorks Protocol can be made to deliver authentic, high priority messages within delimited transaction times. Moreover Network management services allow remote network management tool’s interaction with devices over the network; making them capable to reconfigure network addresses and parameters, download application programs, report network problems and Start/stop/reset device application programs. Consequently it’s relatively easy to employ LonWorks network over any medium, including power line, twisted pair, radio frequency (RF), infrared (IR), coaxial cable, and fiber optics.

Lonworks is another communications protocol useful in building automation applications. The protocol was developed by the Echelon Corporation in the late 1990s. Lonworks originally transformed from Echelon’s earlier “Lontalk”, and was submitted to the American National Standards Institute (ANSI) for acceptance. Lonworks was designed on a low bandwidth platform for networking devices through powerlines, fiber optics, and other media.

The entire Lonworks package consists of the following components by the Echelon Corporation:

  • Lonworks – communications protocol (ANSI/EIA 709.1, and others).
  • Echelon’s “Neuron” chip (Three 8-bit inline processor). Two are used by Lonworks, and one as a general application processor.
  • Twisted-pair and/or powerline transceivers to transmit Lonworks protocol.
  • LNS Network Operating System is the required software.
  • Internet connectivity through Standard Network Variable Types (SNVTs) or with LonMark profiles.
  • LonMaker allows interoperability among devices.

Lonworks has various advantages and disadvantages. The advantages include:

  • Less architecture at the device level.
  • Numerous developers of Lonworks products in the market.
  • Lonworks devices are close to “plug & play” ability, but still far from achieving interconnectivity in today’s computers using Microsoft Windows.

The disadvantages of Lonworks are presented in the following list:

  • Less architecture causes controlled devices and variables to be connected to a separate control device. Most designers do not recommend this type of architecture because network interruptions could eventually produce system failures.
  • The protocol is proprietary, and not truly open to the public. Only actual members, mostly manufacturers are included in standard development(s).
  • Extensions within Lonworks are allowable only through the LonMark Consortium.
  • Hardware specific, and requires the Neuron chip for network movement of the protocol.
Lonworks - Neuron

A processor identified as Neuron chip embracing three 8- bit inline processors designed by Echelon is well optimized for control network devices. Out of three processors: two are committed for the communications protocol and one is a general-purpose applications processor. Standardization of the variables used to illustrate physical things to LonWorks is maintained by LonMark International and each standard is known as Standard Network Variable Types (SNVTs). LNS Network Operating System is a mandatory software component of open control systems which ensures an open environment for extending, maintaining, and managing LonWorks based system

Lonworks - Building Control Networks

A P2P (peer to peer) architecture is undoubtedly the preeminent way to build control networks. Being exclusive of a single master control, P2P-based control network confers high reliability and high performance to its users. Unlike other control networks, in P2P architectures, there is absolutely free and open communication between network devices which automatically puts a stop to the system collapses that could occur whenever the master stops working.

Lonworks P2P networks

Lonworks - LonWorks Applications

Amongst the extensive range of LonWorks technology applications the vital nine are listed below:

  • Semiconductor manufacturing
  • Lighting control systems
  • Energy management systems
  • Heating/ventilation/air-conditioning systems
  • Security systems
  • Home automation
  • Consumer appliance controls
  • Public street lighting, monitoring, and control
  • Gas station control
Lonworks - How to - Commissioning and Binding

Approvals

FST - Lonworks Approvals
LonMark International

The following FieldServer Platforms are LonMark Certified:

http://www.chipkin.com/files/web30_prepImages/FST_lonmark_approval.jpg

The FieldServer provides the capability of defining multiple functional blocks, but only a single LonMark object. The user can create multiple functional blocks or a LonMark object by filling out the Node SelfDocumentation String and the respective Network Variable Self-documentation String fields in the FieldServer configuration file.

Standards & Certification

LonWorks became and ANSI standard in 1999, and subsequently became a widely adopted global standard. The standard is supported and maintained by LonMark International. Standards include:

ANSI-CEA-709.1-B
ISO-IEC 14908-1
ISO-IEC 14908-2
ISO-IEC 14908-3
ISO-IEC 14908-4

LonMark International is responsible for certification, education, and promotion of interoperability standards for the benefit of manufacturers, integrators, and end users. LonMark International has developed extensive product certification standards and tests to provide the integrator and user with confidence that products from multiple manufacturers can work together. 

 

Sierra Monitors FieldServer has more LonMark Certified gateways for integrators and OEMs that carry the LonMark logo than any other gateway manufacturer. For more information about our LonMark Certified products, visit the LonMark International Product Certification Directory.

http://www.chipkin.com/files/web30_prepImages/FST_lonmark_approval_3510.jpg

http://www.chipkin.com/files/web30_prepImages/FST_lonmark_approval_QS.jpg

 

Certified Products are listed here:

http://www.lonmark.org/products/search?manID=1609  check for updates

FS-B2011 Serial/Ethernet/LonWorks® Gateway Sierra Monitor Corporation 3.4 TP/FT-10
FS-B3510 Serial/Ethernet/LonWorks® Multiport Gateway Sierra Monitor Corporation 3.4 TP/FT-10
FS-B4011 Serial/Ethernet/LonWorks® 10-port Gateway Sierra Monitor Corporation 3.4 TP/FT-10
ProtoCarrier/ProtoCessor FPC-CD2 Daughter Card Gateway for OEMs Sierra Monitor Corporation 3.4 TP/FT-10
ProtoCessor FPC-F04 Embedded Gateway Module for OEMs Sierra Monitor Corporation 3.4 TP/FT-10
ProtoNode LER External Protocol Gateway for OEMs Sierra Monitor Corporation 3.4 TP/FT-10
QuickServer FS-QS-1XY1 Gateway for LonWorks® Sierra Monitor Corporation 3.4 TP/FT-10
HVAC Gateways Manufacturer Version Transceiver
Liebert SiteLink-12 LonWorks® Adapter Sierra Monitor Corporation 3.3 TP/FT-10
Industrial Gateways Manufacturer Version Transceiver
SlotServer LonWorks® Open Interface Sierra Monitor Corporation 3.3 TP/FT-10
FS-B2011-01 Water Temp Sensor Sierra Monitor Corporation 3.2 TP/FT-10
HVAC
Boiler Controller Manufacturer Version Transceiver
Cleaver Brooks Adapter for LonWorks® Sierra Monitor Corporation 3.3 TP/FT-10
Discharge Air Controller Manufacturer Version Transceiver
FieldServer Data Aire DAP Adapter for LonWorks® Sierra Monitor Corporation 3.3 TP/FT-10
Industrial
Generator Set Manufacturer Version Transceiver
FieldServer Caterpillar EMCP II Adapter Sierra Monitor Corporation 3.3 TP/FT-10
FieldServer Kohler 550 Adapter Sierra Monitor Corporation 3.3 TP/FT-10

Block Diagrams

LP Lonworks
LP Modbus

Articles

NodeUtil Lonworks Utility
Lonworks - What is LonWorks?
LonMark Certification
Lonworks Neuron chips
Lonworks - Max Nodes
LonWorks Network Interface
LonWorks SmartServer
Lonworks - Veeder Root Point List
Lonworks - Echelon PowerLine
Lonworks - Do I need Lonmaker

Logos

LonMark International Logo
Echelon Logo
Logo Lonworks
Logo Lonworks Lonmark
Logo Lonworks Echelon
Logo Modbus

Useful Links

Gateway Selector

Select your combination of protocols.
Protocol 1
Protocol 2

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