ECL Comfort 200/300 and ECL 2000 HVAC LonWorks®
Contents
1. 2x number of FTT 10 transceivers 1 x number of LPT 10 transceivers 128 12 ECL Comfort 200 300 and ECL 2000 HVAC LonWorks Transmission Free Topology nodes run at 78kbps transmission Specifications speeds Doubly Terminated Bus Topology Specifications Maximum bus length for Maximum bus length for segments with segments with both FTT 10 FTT 10tranceivers only and LPT 10 transceivers Belden 85102 Belden 8471 meters Level IV 22AWG JY St Y 2x2x0 8 Free Topology Specifications Maximum Maximum node to node distance total wire length 500 Belden 85102 Belden 8471 meters LevelelV 22AWG JY St Y 2x2x0 8 4 Twisted Pair Network Configuration Doubly Terminated TRANSCEIVER Bus Topology ea DS E E E TE TERMINATION TERMINATION VI 7F 01 02 13 ECL Comfort 200 300 and ECL 2000 HVAC LonWorks 5 Transformer Coupled Twisted Pair Wiring Performance The table provides a summary of the 1 25 Mbps transformer coupled twisted Specification Performance specifications for the 78 kbps pair channels and Communication Performance TP XF 78 Onl ted TP XF 1250 Not y e nly supporte o on pee ei acc a by ECL 2000 supported by any ECL s a IXF Transmission Transmission Speed 78kbps 1 25Mbps 1 25Mbps Nodes per Channel 64 0 to 70 C 64 0 to 70 C channels i Network Bus Wiring UL Level IV 22 AWG 0 65 mm twisted pair Network Stub Wiring UL Level IV 22 or 24 AWG 0 52. 300 and ECL 2000 The ECL LonWorks option will provide unmatched control and flexibility of the ECL Comfort 200 300 and ECL 2000 over a variety of LonWorks Networks Addressing nodes on the LonWorks network is performed at installation time by an installation tool or network management tool Addressing requires the retrieval of a node s Neuron ID The Neuron ID is a 48 bit number that uniquely identifies every manufactured Neuron chip The ECL LonWorks option supports the three methods of addressing a node 1 Query and Wink The LonWorks option card is shipped with a predefined domain and subnet Upon receiving the wink command the ECL Comfort 200 300 and ECL 2000 will flash the total display so the installer can locate the node 2 Service Pin When the service Pin is activated via keys on the front the ECL LonWorks option will send out it s Neuron ID over the network VI 7F 01 02 Binding is the installation time process of logically connecting one node s output network variable to another node s input network variable To support binding the ECL LonWorks option includes the node s interface file XIF The ECL LonWorks option does not transmit network variables over the network which are not binded so there will be no added overhead on the network LonWorks supports many different types of transmission media A LonWorks network physical layer can be transformer coupled twisted pair 78 kbps and 1 25 Mbps free t
3. ECL Comfort 200 300 and ECL 2000 HVAC LonWorks VI 7F 01 02 ECL Comfort 200 300 and ECL 2000 HVAC LonWorks Table of Contents 1 Overview oO a Introduction About this manual Assumptions What you should already know LonWorks overview The Lon Local Operating Network Concept Applications Node arrangements Message Passing Collision dectection Network Management Routers and bridges ECL LonWorks node Free Topology Network Configuration Singly terminated bus loop Doubly terminated bus loop Star topology Loop topology Mixed topology Free Topology Wiring System performance and cable selection Cable parameters System specifications Transmission specifications Doubly terminated bus topology specifications Free topology specifications Twisted Pair Network Configuration Doubly terminated bus topology Transformer Coupled Twisted Pair Wiring Performance specification Communication on TP XF 78 and TP XF 1250 channels Cable Specifications Level 4 cable Cable suppliers Service Switch Service Switch ECL Comfort 200 300 Service Switch ECL 2000 Interface Network Variables Interoperability ECL control VI 7F 01 02 ODONNOOOO O1 0101 Ol o 13 14 14 15 16 17 17 18 ECL Comfort 200 300 and ECL 2000 HVAC LonWorks 1 Overview Introduction About this manual Assumptions What you should already know Portions of this manual are printed
4. WG 0 65mm 2 pair strand shielded plenum Link Power Belden Description Free Topology P O Box 1980 16 AWG 1 3mm 1 pair strand unshielded PVC Cable Richmond IN 47375 16 AWG 1 3mm 1 pair strand unshielded plenum Suppliers Level 4 22AWG Ph 206 813 5599 0 65mm cables may also be used VI 7F 01 02 16 ECL Comfort 200 300 and ECL 2000 HVAC LonWorks 7 Service Switch Service Switch When starting up the LON option a period Parameter 197 in circuit 1 is the LON option ECL Comfort of about 30 seconds will elapse during reset 200 300 which the database from the regulator will Parameter 196 and 197 can be accessed Service Switch Nede 12 LON 01 23456 789AB be entered During this starting up period itis not possible to come into contact with the LON option neither from ECL Comfort nor from the network The starting up period will occur on reset power up regulator LON option and when an application change is made in ECL Comfort After starting up the following parameters can be activated via the ECL Comfort MMI interface Parameter 196 in circuit 1 is the service pin by scrolling down through the parameters on the installer page grey page with the arrow keys The parameters can be activated deactivated with the keys see instructions At wink the display will flash until any key is pressed on ECL Comfort When updating parameters in ECL Comfort the values must lie in a workable r
5. ange If they fall outside the range they will be rejected When the service pin of the LON device is activated the device broadcasts its Neuron ID onto the network To activate the ECL 2000 s service pin 1 In the System Overview picture A press to access the CommonFunctions service menu 2 Press until Communication is selected 3 Press to access the Communication picture shown to the left 4 Press to activate the service pin Depending on the setup of the ECL 2000 you may be required to enter an access code before the service pin can be activated See the ECL 2000 User s Guide ref 1 for instructions on entering the access code VI 7F 01 02 17 ECL Comfort 200 300 and ECL 2000 HVAC LonWorks 8 Interface Network Variables Interoperability Interoperability refers to the ability of independent nodes to operate together over the LonWorks network The LonMark program was developed to address interoperability issues The Lonworks option supports the following LonMark activities to improve interoperability 1 Standard Network Variable Types SNVT s SNVT s define the units limits and resolution of network variables so that nodes have a common platform for representing data items The LonWorks option only uses SNVT s to transmit and receive data over the LonWorks network 2 Standard Objects Standard Objects are a collection of SNVT s to perform a function The LonWorks option supports the no
6. de object and a controller standard object as defined in the LonMark Interoperability guidelines 2 0 3 LonMark Interoperability Association Tast Groups LonUsers Groups Tast groups define SNVT s and standard objects to create standards and models to be used by particular applications Danfoss is active in defining standards for LonUser groups ECL Control The ECL LonWorks option supports all SNVT s for flexible control of the ECL over the LonWorks network Please refer to the manuals Technical Manual ECL 2000 LON Option and LONWorks in ECL Comfort for detaield and technical information VI 7F 01 02 18 Danfoss can accept no responsibility for possible errors in catalogues brochures and other printed material Danfoss reserves the right to alter its products without notice This also applies to products already on order provided that such alterations can be made without subsequential changes being necessary in specifications already agreed All trademarks in this material are property of the respective companies Danfoss and the Danfoss logotype are trademarks of Danfoss A S All rights reserved Danfoss A S DK 6430 Nordborg Denmark Tel 45 74 88 22 22 Telefax 45 74 49 09 49 Telex 50 599 danfss dk VI 7F 01 02
7. he Industry Association EIA TIA The Level neh National Electrical Manufacturers 4 cable specifications used by Echelon Specifications Association of the USA NEMA differs are presented below and are followed by from the Category IV specification a list of Level 4 cable suppliers proposed by the Electronic Specifications apply to shielded or unshielded 22AWG 0 65mm cable 24AWG 0 5mm cable shown in brackets if different DC Resistance Ohms 1000 feet at 20 C 18 0 28 6 maximum for a single copper conductor regardless of whether it is solid or stranded and is or is not metal coated DC Resistance Unbalance percent maximum pF foot maximum Pair to Ground Capacitance Unbalance 1000 pF 1000 feet maximum Impedance Ohms 772kHz 102 15 87 117 1 0MHz 100 15 85 115 4 0MHz 100 15 85 115 8 0MHz 100 15 85 115 10 0MHz 100 15 85 115 16 0MHz 100 15 85 115 20 0MHz 100 15 85 115 Attenuation dB 1000 feet at 20 C maximum 772kHz 4 5 5 7 1 0MHz 5 5 6 5 4 0MHz 11 0 13 0 8 0MHz 15 0 19 0 10 0MHz 17 0 22 0 16 0MHz 22 0 27 0 20 0MHz 24 0 31 0 Worst Pair Near End Crosstalk dB minimum Values are shown for information only The minimum next coupling loss for any pair combination at room temperature is to be greater than the value determined using the formula NEXT Fyn gt NEXT 0 772 15 F 0 772 for all frequencies in the range of 0 772MHz 20MHz for a lo ig MH
8. ial node that consists of two connected NEURON chips each connected to a separate channel see figure Routers and bridges pass packets back and forth between these channels There are four types of routers A repeater is the simplest form of router simply forwarding all packets between the two channels Using a repeater a subnet can exist across multiple channels A bridge simply forwards all packets which match its domains between the two channels Using a bridge a subnet can exist across multiple channels Like a learning router a configured router selectively routes packets between channels by consulting internal routing tables Unlike a learning router the contents of the internal routing tables are specified using Network Management commands A learning router monitors the network traffic and learns the network topology at the domain subnet level The learning router then uses its knowledge to selectively route packets between channels Initially each router sets its internal routing tables to indicate that all subnets could lie on either side of the router Referring to figure suppose that node 6 generates a message bound for node 2 Learning router 1 initially picks up the message Examining the source Channel 2 29 Ok 4 Subnet 1 Learning Router 2 Channel 9 10 11 12 Subnet 3 VI 7F 01 02 subnet field of the message the learning router notes in its internal routing tables that sub
9. ies for the group type and size and tells the node how many acknowledgments to expect when it sends a message It also tells the NEURON chip which domain the largest possible grouping of nodes to use what this node s group member number is to identify an acknowledgment as coming from this node and contains a transmit timer a repeat timer a retry count a receive timer and the group ID There are anumber of trade offs between network efficiency response time security and reliability Generally LonWorks defaults to the greatest degree of safety and verification for all communications over the LON network The LonTalk protocol the operating system that coordinates the LonWorks system and is built into the chips offers four basic types of message service The most reliable service is acknowledged or end to end acknowledged service where a message is sent to a node or group of nodes and individual acknowledgments are expected from each receiver If an acknowledgment is not received from all destinations the sender times out and re tries the transaction The number of retries and time out are both selectable Acknowledgments are generated by the network CPU without intervention of the application Transaction IDs are used to keep track of messages and acknowledgments so that the application does not receive duplicate messages VI 7F 01 02 An equally reliable service is request response where a message is se
10. mm twisted pair Network Bus Length Typical Worst case Maximum Stub Length 0 3m 0 to 70 C Network Terminators Required at both ends of the network Temperature Operating 0 to 70 C 64 node load 0 to 70 C 64 node load Non operating 40 to 85 C 44 node load 20 to 85 C 32 node load 40 to 70 20 node load Electrostatic Discharge to Network Connectors No Errors to 15 000V to 15 000V No Hard Failures to 20 000V to 20 000V Isolation between Network and I O Connectors 0 60Hz 60 seconds 1 000 VRMS 1 000 VRMS 0 60Hz continuous 277 VRMS 277 VRMS 1 Typical conditions are 20 C 5VDC supply NOTE nn ae It is necessary to terminate the ends of a I u A A x TP XF 78 or TP XF 1250 twisted pair bus 2 Worst case conditions are the combined to minimize refelections Failure to effect of worst case conditions of all the above terminate the bus will degrade network performance parameters nodes per erformance channel network bus length stub length p temperature etc 3 Thestub length in the table assumes a mutual capacitance of 17 pF ft 56 pF m for the twisted pair stub cable Actual lengths may be shorter or longer depending on the actual measured value VI 7F 01 02 14 ECL Comfort 200 300 and ECL 2000 HVAC LonWorks 6 Cable Specifications Level 4 The Level 4 cable specification used by Industries Association Telecommunication Cable Echelon and as originally defined by t
11. nd transmission specifications are outlined on the following pages Both of these specifications should be met to ensure proper operation The system designer may choose a variety of cables depending on cost availability and performance Performance may vary with cable type The transmission specification depends on such factors as resistance mutual capacitance and the velocity of propagation Echelon will characterize system performance on the following cable types Electrical parameters shown in the table are typical Cable Type Wire Rloop C Vprop dia AWG y km nF km ofc Belden 85102 single twisted pair stranded 9 29 unshielded plenum Belden 8471 single twisted pair stranded 9 29 unshielded non plenum Level IV 22AWG twisted pair typically solid amp unshielded JY St Y 2x2x0 8 4 wire helical twist solid shielded Note that the following specifications are for one network segment Multiple segments may Upto64FTT 10 transceivers or 128 LPT 10 transceivers are allowed per network segment The average temperature of the wire must not exceed 55 C although individual segments of wire may be as hot as 85 C VI 7F 01 02 1 3mm 16 28 5 62 1 3mm 16 28 72 55 0 65mm 22 106 49 67 0 8mm 20 4 73 98 41 be combined using repeaters to increase the number of nodes and distance e Both types of transceivers may be used on a given segment provided that the following constraint is met
12. ne line The messages are garbled and confused and the contents of the messages are lost When using a communications medium that supports collision detection twisted pair for example the LonTalk protocol can optionally cancel transmission of a packet as soon as a collision is detected by the transceiver This option allows the node to immediately retransmit any packet that has been damaged by a collision Without collision detection the node would have to wait the duration of the retry time to notice that no acknowledgment was received at which time it would retransmit the packet assuming knowledge or request response service For unacknowledged service an undetected collision means that the packet is not received and no retry is attempted Depending on the level of a given application a LonWorks network may or may not require the use of a Network Management node A Network Management node is a node that has been specifically designated to perform network management functions such as VI 7F 01 02 Find unconfigured nodes and download their network addresses Stop start and reset node applications e Access node communication statistics e Configure routers and bridges Download new applications programs Extract the topology of a running network ECL Comfort 200 300 and ECL 2000 HVAC LonWorks Routers and Bridges Learning Routers Source Echelon Corp A router or bridge is a spec
13. net 2 lies below it The router then compares the source and destination subnet IDs and since they are different the message is passed on Meanwhile learning router 2 has also passed the message on making an appropriate notation in its internal routing tables regarding the location of subnet 2 Suppose now that node 2 generates an acknowledgment This acknowledgmentis picked up by learning router 1 which now notes the location of subnet 1 Learning router 1 examines its internal routing tables and noting that subnet 2 lies below passes the message on When the message appears on subnet 2 it is noted by both node 6 the destination node and learning router 2 which does not pass it on but merely notes that subnet 1 like subnet 2 lies somewhere above Learning router 2 will not learn of the existence or location of subnet 3 until a message is originated from there Subnets cannot cross routers While bridges and repeaters allow subnets to span multiple channels the two sides of a router must belong to separate subnets The fact that routers are selective about the packets they forward to each channel can be used to increase the total capacity of a system in terms of nodes and connections Learning Router 1 Channel INS SEEZE 5 6 7 8 Subnet 2 ECL Comfort 200 300 and ECL 2000 HVAC LonWorks ECL LonWorks The ECL LonWorks option will perform as Node an integrated part of the ECL Comfort 200
14. nt to a node or group of nodes and individual responses are expected from each receiver Incoming messages are processed by the application on the receiving side before a response is generated The same retry and time out options are available as with acknowledged service Responses may include data so that this service is particularly suitable for remote procedure call or client server applications The next most reliable service is unacknowledged repeated where a message is sent to a node or a group of nodes multiple times and no response is expected This service is typically used when broadcasting to large groups of nodes and when traffic generated by all the responses would overload the network The least reliable method is unacknowledged where a message is sent once to a node or group of nodes and no response is expected This option is typically used when the highest performance is required network bandwidth is limited and the application is not sensitive to the loss of a message ECL Comfort 200 300 and ECL 2000 HVAC LonWorks Collision Detection Network Management The LonTalk protocol uses a unique collision avoidance algorithm a special mathematical equation which allows an overloaded channel to carry close to its maximum capacity rather than have its throughput reduced due to excessive collisions between messages Collisions are analogous to 10 people trying to talk all at once on a single telepho
15. opology link power power line RF RS 485 fiber optic coaxial and infrared The ECL LonWorks option supports two transmission media with the versions of the ECL LonWorks option card ECL Comfort and ECL 2000 1 Free topology FTT 10 A The free topology node will also operate ona link power network ECL 2000 2 78 kpbs transformer coupled twisted paid TP XF 78 A router is required to interface to a LonWorks network that is not supported by the option card versions 10 ECL Comfort 200 300 and ECL 2000 HVAC LonWorks 2 Free Topology Network Configuration Singly Terminated Bus Loop Doubly Terminat Bus Loop Star Topology Loop Topology Mixed Topology The FTT system is designed to support free topology wiring and will accommodate bus star loop or any combination of these topologies FTT 10 transceivers can be located at any point along the network wiring High capability simplifies system installation and makes it easy to add nodes should the system need to be expanded The figures present five different network topologies ed M w i u i I TERMINATION ES TERMINATION TERMINATION TERMINATION VI 7F 01 02 M 11 ECL Comfort 200 300 and ECL 2000 HVAC LonWorks 3 Free Topology Wiring System Performance and Cable Selection Cable Parameters System Specifications FTT 10 system a
16. r task in many different buildings using a VI 7F 01 02 variety of communications media The tasks which the nodes perform in any given situation are determined by how they have been connected and configured Because hardware design software design and network design are all independent in a LonWorks based system a node s function can be programmed without concern about the specifics of the networks in which they will be used Physically each node will consist of a NEURON chip and a transceiver ECL Comfort 200 300 and ECL 2000 HVAC LonWorks Node Arrangements Message Passing LonWorks nodes can be addressed either individually or in groups A group can contain up to 64 nodes and one LonWorks network can support up to 255 groups Furthermore any node can be part of up to 15 different groups A subnet is very similar to a group but can contain up to 127 nodes A domain is the largest grouping of nodes A single domain can handle up to 255 subnets Thus a single domain can handle up to 32 385 separate nodes A single node may be connected to no more than two domains The group structure has the advantage of allowing a number of nodes to be reached at only one address This method keeps the record keeping inside each chip to a minimum and allows for faster operating times However individual addressing can be done at all levels of a LonWorks system with high efficiency The address table of a node contains entr
17. with the permission of the Echelon Corporation and the National Electrical Contractors Association of the USA NECA Echelon LonTalk Neuron and LonWorks are registered trademarks of the Echelon Corporation The documentation in this manual is intended to provide you with comprehensive information on how to install and set up your LonWorks Option Card for communication over a LonWorks communication network For more specific information on installation and operation of the ECL please refer to the User Manual and Installation Guide This manual is intended to be used both as an instructional and a reference manual It only briefly touches on the basics of the LonWorks protocol whenever it is necessary for gaining an understanding of the LonWorks Option module for the Danfoss ECL Comfort 200 300 and Danfoss ECL 2000 This manual is also intended to serve as a guideline when you specify and optimize your communication system The list of contents is also a decision route that will guide you through the decisions you have to make before you set up your system Please refer to the manuals Technical Manual ECL 2000 LON Option and LONWorks in ECL Comfort for detaield and technical information Even if you are an experienced LonWorks programmer we suggest that you read this manual in its entirety before you start programming since important information can be found in all sections This manual assumes that
18. work or LON LON technology offers a means for implementing distributed systems that perform sensing monitoring control and other applications LON allows intelligent devices such as actuators and sensors to communicate with one another through an assortment of communications media using a standard protocol LON technology supports distributed peer to peer communications That is individual network devices can communicate directly with one another and a central control system is not required LON is designed to move sense and control messages which are typically very short and which contain commands and status information that trigger actions LON performance is viewed in terms of transactions completed per second and response time The critical factor in LON technology is the assurance of correct signal transmission and verification Control systems do not need vast amounts of data but they do demand that the messages they send and receive are absolutely correct A key benefit of LonWorks networks is their ability to communicate across different types of transmission media in a single system The NEURON chip s the NEURON chip is the heart of the LonWorks system communication port allows for the use of transceivers for other media e g coax fiber optic etc to meet special needs With the proper design the nodes become generic building blocks that can be applied in various ways to control lighting or any othe
19. you are using a LonWorks Option Card in conjunction with a Danfoss ECL Comfort 200 300 or ECL 2000 It is also assumed that you have a controller node that supports the interfaces in this document and that all the requirements stipulated in the controller node as well as the ECL Comfort 200 300 or ECL 2000 are strictly observed as well as all limitations therein The Danfoss LonWorks Option Card is designed to communicate with any controller node that supports the interfaces defined in this document VI 7F 01 02 It is assumed that you have full knowledge of the capabilities and limitations of the controller node ECL Comfort 200 300 and ECL 2000 HVAC LonWorks LonWorks Overview The Lon Local Operating Network Concept Applications LonWorks is both an existing standard and physical hardware developed by Echelon Corporation Echelon s stated goal is to establish a commodity solution to the presently daunting problems of designing and building control networks Customers are currently using LonWorks for process control building automation engine control elevator control life safety systems power distribution controls and similar intelligent building applications The LonWorks communications structure is similar to that of a LAN in that messages are exchanged between a number of processors continually LonWorks control devices are called nodes The LonWorks systems are determined Local Operating Net
20. z length of 1000 feet 772kHz 1 0MHz 4 0MHz 8 0MHz 10 0MHz 16 0MHz 20 0MHz VI 7F 01 02 15 ECL Comfort 200 300 and ECL 2000 HVAC LonWorks Level 4 Anixter stocks the following cables which they will cut to size Cable Anixter Part No Description Suppliers 4711 Golf Road 9D220150 22 AWG 0 65mm 1 pair solid unshielded PVC Skokie IL 60076 9F220150 22 AWG 0 65mm 1 pair solid shielded PVC 9D220250 22 AWG 0 65mm 2 pair solid unshielded PVC Ph 708 677 2600 9F220254 22 AWG 0 65mm 2 pair solid shielded PVC FAX 708 677 2668 9H2201504 22 AWG 0 65mm 1 pair solid unshielded plenum 9J2201544 22 AWG 0 65mm 1 pair solid shielded plenum 9H2202504 22 AWG 0 65mm 2 pair solid unshielded plenum 9J2202544 22 AWG 0 65mm 2 pair solid shielded plenum The following table lists cables stocked by Connect Air Connect Air Part No Description International Inc W221P 1002 22 AWG 0 65mm 1 pair strand unshielded PVC 50 37th Street N E W222P 1004 22 AWG 0 65mm 2 pair strand unshielded PVC Auburn WA98002 W221P 1003 22 AWG 0 65mm 1 pair strand shielded PVC W222P 1005 22 AWG 0 65mm 2 pair strand shielded PVC Ph 206 813 5599 W221P 2001 22 AWG 0 65mm 1 pair strand unshielded plenum FAX 206 813 5699 W221P 2003 22 AWG 0 65mm W221P 2002 22 AWG 2 pair strand unshielded plenum 0 65mm 1 pair strand shielded plenum W222P 2004 22 A
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