Character Encoding Related Documentation Device Interface Overview Neuron ID Standard Program ID
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Character Encoding Related Documentation Device Interface Overview Neuron ID Standard Program ID Format Field Manufacturer Field Device Class Field Usage Field Channel Type Field Model Number Field Device Channel ID Device Location Field Functional Blocks Implementing a Functional Block Network Variables Configuration Properties Device and Functional Block Versioning Resource File Definitions Type Definitions Functional Profiles Language Strings Identifying Appropriate Resources Using Standard Resources Proposing New Standard Resources Using User Resources Managing Resource Files Implementing Resource Files Network Addressing Network Variable Aliases Passive Configuration Tools Service Pin Appendix A Glossary Definition of Terms Appendix B Language File Extensions Language File Extensions Submitting a New Proposal Certified Device and Resource File Changes Upgrading to the Version 3.
Application s in devices are divided into one or more functional blocks. A functional. Provides guidelines, detailed. For example, the. LonMark International should identify the existing standard resource as obsolete.
If a foreign network tool inadvertently acquires a device and installs it with networkmanagement. All devices certified to the version 3. Version 3. Resource File Definitions Reso. By convention, all the enumerator n. Self-documentation String. Using Conversion Spe. The standard resource file set is a.
For example, a fil. Table 7. Resource File Format Versi. In lieu of more s. Guideline 4. Format Functional block In the cont. Functional profile member number Fu. Network variable selection Network. Standard network variable type SNV.
Appendix B Language File Extensions. Appendix C New Standard Profile and. Contact Committee. The Technic. Certified Device and Resource. Index A address tables, 87, 88 addr. X XIF files. LonSupport is a trademark of Echelon Corporation. Other brand and product names are trademarks or registered trademarks of their respective holders. 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. A control network is any group of devices working in a peer-to-peer fashion to monitor sensors, control actuators, communicate reliably, manage network operation, and provide local and remote access to network data. This document provides application-layer layer 7 design guidelines, and also includes a glossary defining terms for the two volumes.
Introduction 5 1. Network devices are sometimes also called nodes. A device publishes information as instructed by the application that it is running.
The applications on different devices are not synchronized, and it is possible that multiple devices may all try to communicate at the same time. Meaningful transfer of information between devices on a network, therefore, requires organization in the form of a set of rules and procedures. The protocol defines the format of the messages being transmitted between devices and defines the actions expected when one device sends a message to another.
The protocol implementation normally takes the form of embedded software or firmware code in each device on the network. A functional block performs a task by receiving configuration and operational data inputs, processing the data, and sending operational data outputs.
A functional block may receive inputs from the network, from hardware attached to the device, or from other functional blocks on a device. A functional block may send outputs to the network, to hardware attached to the device, or to other functional blocks on the device. A network tool may upload the device interface definition from the device, or it may read the device interface definition from a standalone file called the device interface XIF file.
Standardization of the device interfaces is an important element of designing for interoperability. The actual application software and hardware behind the interface is outside the scope of these guidelines. The purpose of the guidelines is to ensure interoperability, but not interchangeability of devices. The ability to choose a specific device is provided by public device interfaces that describe the function of the device and how it exchanges information with other devices on a LONWORKS network.
The ability to choose among suppliers for system maintenance is realized by ensuring that interoperable devices do not require any private information to be successfully commissioned.
If no casing is provided, the logo can be placed on a circuit board or equivalent. Figure 1. If the product does conform with the ISI protocol as described in 4. Figure 2. Related Documentation The following documents provide supplemental information to these guidelines.
All documents listed here are available at www. Copies of this document are available for purchase at www. ISI Protocol Specification. Describes the content and structure of a device interface XIF file.
Provides detailed specifications on the electrical interfaces, mechanical interfaces, and operating environment characteristics for the FT Smart Transceiver and Neuron Processor. Provides information on all available standard enumeration types. Available from LonMark International. Provides information on all available standard network variable types SNVTs. Provides information on all available standard configuration property types SCPTs.
LonMark Application-Layer Interoperability Guidelines
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