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GRouter4
Single Port 709.1 /852 LON/IP Router
User Guide
4.05
2007/06/06
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Copyright © 2007 by Adept Systems, Inc. All Rights Reserved. Printed in USA. Version 4.05, June 2007. !is document, the associated so"ware, and the associated online documentation are the property of Adept Systems, Inc. and are loaned to the user under the terms of the End User License Agreement. No title to or ownership of the so"ware described in this document or any of its parts is transferred to customers. No part of this document may be reproduced or transmitted in any form or by any means
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Table of Contents 1. Overview ...................................................................................................7 1.1. Introduction ...........................................................................................7 1.2. Con!guration Parameters .....................................................................9 1.3. Modes of Operation ............................................................................10 1.3.1. Manual Mode.....................................
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2.3.2. Manual Mode Router Setup...........................................................36 2.3.3. Bridging Router Setup ...................................................................37 2.4. IP Setup Page ........................................................................................40 2.5. WiFi Setup Page....................................................................................42 2.6. 709 Setup Page........................................................................
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List Of Figures Figure 1.1: Network Layers...................................................................................................8 Figure 1.2: Network Connector Types and Associated Layers ...........................................8 Figure 1.3: CN to IP Router/Gateway Architecture ............................................................9 Figure 1.4: GRouter 3 Architecture......................................................................................9 Figure 1.5: Multi-sit
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Figure 2.19: Diagnostics Page ............................................................................................52 Figure 2.20: Dynamic DNS Con!guration Page...............................................................54 Figure 2.21: Twin Mode Setup Page...................................................................................55 Figure 2.22: Twin Mode Status Page ..................................................................................58 Figure 2.23: Contacts Page .
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1. Overview 1.1. Introduction !e GRouter (GR4) router supports two open standard protocols, namely ANSI/EIA 709.1 and ANSI/EIA 852. Both the ANSI/EIA 709.1 and ANSI/EIA 852 are de#ned by the Consumer Electronics Association Technology & Standards R7.1 HCS1 Subcommittee. For more details see http://ce.org/. For the sake of brevity the remainder of the document will refer to the standards as 709.1 and 852. 709.1 is also known by its trademarked name, LonTalk . A 709.1 ® network is also commonly
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Fig.1.1: Network Layers A network connector is a device that joins di%erent parts of a network. Connectors have a speci#c name that is dependent on the layer at which the connector operates. For example a router operates at the network layer and a gateway at the application layer. Because higher layers of the protocol do not have access to some of the information stripped away by lower layers, network connectors operating at di%erent layers have di%erent capabilities. !ere is also some abuse of
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Fig.1.3: CN to IP Router/Gateway Architecture !e GRouter device also employs a web server for con#guration purposes. (See Figure 2.4) Fig.1.4: GRouter 3 Architecture 1.2. Con!guration Parameters !e information required for successful ANSI/EIA 709.1 transport can be broken up into the following two categories: device parameters and channel parameters. Device parameters include information such as: IP address, IP port, Name, and Address of con#guration server. A channel is a logical grouping of
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A channel, then, is de#ned as a group of routers that all send information to each other.!e lines of communication are open in both directions and to all members—a complete mesh of connections. Typically, channels are managed through the use of a con#guration server (called Normal mode see below). !e con#guration server informs all members in the channel about the channel information, which includes the adding and removing of channel members. Con#guration servers are capable of managing multipl
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support to ANSI/EIA 709.1 networks. !is allows multi-building or multi-site connection of automation networks. Internet Fig.1.5: Multi-site building automation network with internet connectivity 1.4.2. IP backbones for LON tra!c aggregation Furthermore, since the IP networks can support much higher tra&c capacity, GRouter devices can also be used to aggregate 709.1 tra&c from several LON channels over one IP channel.!e ability to aggregate larger tra&c volumes allows several GRouter devices an
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Ethernet Remote ... Node Node Monitoring Configuration 78 kbps LON Internet Optional WiFi to Ethernet Bridge Ad Hoc 802.11b WiFi Channel LON/WiFi Routers 78 kbps LON 78 kbps LON ... ... Node Node Node Node Fig.1.7: Example WiFi Ad Hoc Network 1.4.3. Roaming Connections Finally, LON to IP gateways may be connected to specialized IP applications instead of to other gateways. Connecting an IP application to a GRouter device provides these specialized applications with roaming capabilities which
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Multicast is not a concern when all the 852 devices share the same subnet.!e following#gures illustrate the di%erences between multicast and unicast. E D Destination Unit-Cast Packet IP Network Destination Internet Unit-Cast Unit-Cast Unit-Cast Packet Packet Packet Destination Source Destination B A C ANSI 852 709.1/IP ANSI 852 709.1/IP Gateway/Router Gateway/Router ... ... ... Node Node Node Node Node Node Fig.1.8: Unicast E D Multiple Destinations IP Network Internet Multi-Cast Packet
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1.6. 852 to 852 Bridging Router Mode In order to better support large installations with dozens of IP to LON routers a GRouter device can be con#gured in 852 to 852 bridging router mode. In this mode one GRouter device can bridge two logical 852 channels. When acting as an 852 bridge the router is a member of two logical 852 channels sharing one ethernet interface. !e router bridges tra&c between the two channels. On the LON side the bridge looks like a LON router. !is overcomes limitations of
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1.7. Redundant Twin Mode !e Twin Redundant Mode enables two GRouter devices to operate as a redundant pair for high availability applications without generating duplicate tra&c. !is enhanced capability increases reliability and eliminates some single mode failure sources. A simple diagram showing a redundant connection between two channels is shown below. IP Ethernet Channel Ethernet Ethernet 709 with Router 709 with 709 with Router 709 with 852 IP/LON LON LON IP/LON 852 FTT-10 FTT-10 709.1 F
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Ethernet Ethernet Router Redundant Twin Router 852 709 709 852 IP/LON Routers IP/LON FTT-10 FTT-10 A-1 B-1 FTT-10 Channel Ring Ethernet Ethernet Router Redundant Twin Router 852 709 709 852 IP/LON Routers IP/LON FTT-10 FTT-10 B-2 A-2 FTT-10 Channel Ring Network Management Tool & 852 Configuration Server 852 Interface Ethernet 852 Channel B Ethernet 852 Channel A Ethernet Fully Switched Fully Switched Ethernet Switch Ethernet Switch Fig.1.12: Redundant Twin Mode Application -16-
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1.7.1. De"nitions For the purpose of clarifying the descriptions the following de#nitions are used: Failure: A failure is detected whenever a heart beat times out without receiving a monitoring packet from both interfaces. Only the active node sends monitoring packets. !e inactive node passively listens for the monitoring packets. !e inactive twin always forwards monitoring packets. In order for an active node to receive a monitoring packet it has to complete a round trip, such as, out IP side
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comm_failure is set to 1 when there is either a monitoring failure or a diagnostic detects a fault. comm_failure is not set to 0 until all failures and faults have cleared. reserved2 is set based on the system state. See the following table. Bit values for reserve2 status byte (big endian) Bit Value 7 1 Active State, 0 Inactive State 6 1 Forwarding, 0 Dropping 5 1 Repair State, 0 Not Repair State 4 1 Diagnostic State, 0 Not Diagnostic State 3 1 IP side failure, 0 No IP side failure 2 1 LON side
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Status is an 8 bit number. !e bit de#nitions are given in Table 1. It is the same information reported in the Status SNVT reserved #eld. totalArbs is the total number of active state arbitrations since the last time the statistics were cleared. totalFailuresIP is the total number monitoring packet failures detected by this device of the IP interface since the statistics were cleared. totalFailuresLON is the total number of monitoring packet failures detected by this device of the LON interface s
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1.8. System Requirements and Connections 1.8.1. System Requirements To con#gure the GRouter device, you will need a web browser such as FireFox, Mozilla, Safari, or Internet Explorer. !e GRouter device will communicate with any of the following: • Adept Systems Inc. GRouter4, GRouter3, or GadgetGatewayIa (GG1a) 852 router TM TM • Echelon i.LON router or LNS VNI based tool such as LonMaker • Coactive Router-LL router • Any 852B or later compliant node To operate in normal mode an 852B con#gura
