Multiport Gateway (Serial-Ethernet-LonWorks)
This protocol translator/gateway provides a wealth of features to enable data transfer between different devices and networks utilizing serial, Ethernet or LonWorks ports. The extensive library of FieldServer drivers provides easy interoperability with devices and networks used in building automation, HVAC, fire and process control industries.
The FS-B3510 is one of the FS-X30 Series FieldServers designed to meet the needs of system integrators in designing a complete interoperable system. The FS-B30 Series brings together the powerful FieldServer driver library with state-of-the-art gateway design. This FieldServer includes four serial connections (two RS-232, two RS-485), two Ethernet ports, and a LonWorks port. The multiport design allows for serial-to-serial interfaces or interface from mulitple serial products to an Ethernet or LonWorks network. The two Ethernet ports enable the integrator to connect a PC to download configuration changes without disturbing the system connections and without the additional cost of an external hub.
The BACnet Master-Slave/Token-Passing (MS/TP) driver implements a data link protocol that uses the services of the RS-485 physical layer. See the FieldServer BACnet PIC statement for the level of conformance that this driver implements.
All information in a BACnet system is represented in terms of objects. The Object_Identifier is a 32-bit code that identifies the type of Object (also identified by the Object_Type Property) and its "Instance" number, which together uniquely identify the Object within its BACnet device. Theoretically, a BACnet device could have over four million Objects of a particular type. The Object_Name is a text string, which has a unique capability. BACnet devices may broadcast queries for devices that contain Objects with a specific Object_Name. This can greatly simplify project setup.
BACnet requires one Device Object to be present in every BACnet device. The Device Object makes information about the device and its capabilities available to other devices on the networks. Before one BACnet device starts control-related communications with another, it needs to obtain some of the information presented by the other device's Device Object. Unlike other Objects, the Device Object's Instance number must be unique across the entire BACnet internetwork because it is used to uniquely identify the BACnet devices. It may be used to conveniently identify the BACnet device from other devices during installation.
Standard object types are used to hold real time data and other information. Each Object Type is referenced by a number, for example 0 represents an Analog Input.
Each Object consists of a number of prescribed properties, the main property being the Present_Value. Objects are monitored and controlled through their properties. The Analog Input Object is representative of the Objects involved directly with control elements and many of its Properties reflect this.
The information that follows describes how to expand upon the factory defaults provided in the
configuration files included with the FieldServer.
The LonWorks driver allows the FieldServer to transfer data to and from devices using LonWorks protocol over the TP-FT/10 channel amongst others. The LonWorks FieldServers can emulate either a Server or Client.
The FS-B30, QuickServer, and SlotServer Series FieldServers have a built-in LonWorks Interface and 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).
Multiport Gateway (Serial-Ethernet-LonWorks)
- Ethernet Ports – 2: 100 BaseT RJ45 connector (auto MDIX and sensing) with ESD protection
- Serial Ports – 5: 2 x RJ45 RS-232 galvanically isolated with ESD protection. 2 x RS-485 galvanically isolated with ESD protection. 1 x RJ45 RS-232 system port.
- LonWorks – 1: FTT-10 twisted pair. 1000 Network variable capability. LonWorks service pin
- Auxiliary ports – 2: 2 x USB ports. Expansion: Fieldbus connectors available for selected protocol
- Operating Temperature: 0-60°C (32-140°F)
- Relative Humidity: 10-90% non-condensing
24V AC (+/-10%) or 12-30V DC @ 12W
- Dimensions (WxDxH): 6.3x5.4x2.0 in.(16.0x13.7x5.0cm)
- Weight: 2.5 lbs (1.5 Kg)
- Input voltage: 24 V DC nominal: 10-30V DC
- Capacity: Base system has 1000 point capability (upgradeable to 10,000 points)
- Mounting Options: Desktop, Wall, Panel Optional: DIN rail
Power, Run, System Error, Configuration Error, and Node Offline
Ethernet connection– Link OK, Tx/Rx communication activity
RS-232/RS-485 – Tx/Rx communication activity
LonWorks - Activity
Communication, Option, Drivers
Memory upgrade for additional data points
Custom Configuration Service
Drivers available for a wide range of Ethernet and social protocols
- CE Marked
- CSA Certified: UL916 Standard and CSA @ 22.2
- DNP 3.0 Tested
- RoHS Compliant
- GOST-R Certified
- FCC: Part 15
- LonMark Certified
- Modbus Tested
- BTL Certified
FST - Lonworks Approvals
The following FieldServer Platforms are LonMark Certified:
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:
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.
Certified Products are listed here:
https://www.lonmark.org/products/search 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|
|Liebert SiteLink-12 LonWorks® Adapter||Sierra Monitor Corporation||3.3||TP/FT-10|
|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|
|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|
|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|
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 - 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 - 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 - 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 - 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 - 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.
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.
More Nodeutil Downloads available: HERE
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.
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 - 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 - How to - Commissioning and Binding
How to Commission and Bind using Lonmaker. CAS can configure Lonworks gateways so Commissioning and Binding can be avoided. Call our Tech Sipport for more info.
BACnet MSTP to IP
A BACnet Router is used to connect MSTP trunks to BACNetIP systems. The router itself is a device on the IP and on the MSTP side. The router can also act as BBMD device allowing messages to cross from one subnet to another.
BACnet messages cannot cross from one subnet to another except under special circumstances.
Most BACnet sequenc es of messages begin with a broadcast called 'who is'. All devices respond with 'I am'. That is how they are discovered. It is also how many system confirm the device is still there.
Broadcasts can't cross routers (they are blocked) and therefore devices on the other side of a router cannot e discovered.
BBMD is the name of the BACNet technology that resolves these issues. The BACNet ROuter sold by CAS provides BBMD services as do all FieldServer BACNet products when configured as clients.