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1、Installation InstructionsControlNet Fiber Media Planning and Installation GuideCatalog Number 1786 SeriesImportant User InformationSolid-state equipment has operational characteristics differing from those of electromechanical equipment.Safety Guidelines for the Application,Installation and Maintena
2、nce of Solid State Controls(publication SGI-1.1 available from your local Rockwell Automation sales office or online at http:/ some important differences between solid-state equipment and hard-wired electromechanical devices.Because of this difference,and also because of the wide variety of uses for
3、 solid-state equipment,all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.In no event will Rockwell Automation,Inc.be responsible or liable for indirect or consequential damages resulting from the use or applicat
4、ion of this equipment.The examples and diagrams in this manual are included solely for illustrative purposes.Because of the many variables and requirements associated with any particular installation,Rockwell Automation,Inc.cannot assume responsibility or liability for actual use based on the exampl
5、es and diagrams.No patent liability is assumed by Rockwell Automation,Inc.with respect to use of information,circuits,equipment,or software described in this manual.Reproduction of the contents of this manual,in whole or in part,without written permission of Rockwell Automation,Inc.,is prohibited.Th
6、roughout this manual,when necessary,we use notes to make you aware of safety considerations.Allen-Bradley,Rockwell Software,Rockwell Automation,RSNetWorx for ControlNet,and TechConnect are trademarks of Rockwell Automation,Inc.Trademarks not belonging to Rockwell Automation are property of their res
7、pective companies.WARNING:Identifies information about practices or circumstances that can cause an explosion in a hazardous environment,which may lead to personal injury or death,property damage,or economic loss.ATTENTION:Identifies information about practices or circumstances that can lead to pers
8、onal injury or death,property damage,or economic loss.Attentions help you identify a hazard,avoid a hazard,and recognize the consequenceSHOCK HAZARD:Labels may be on or inside the equipment,for example,a drive or motor,to alert people that dangerous voltage may be present.BURN HAZARD:Labels may be o
9、n or inside the equipment,for example,a drive or motor,to alert people that surfaces may reach dangerous temperatures.IMPORTANTIdentifies information that is critical for successful application and understanding of the product.Rockwell Automation Publication CNET-IN001C-EN-P-October 20113Summary of
10、ChangesThis manual contains new and updated information.Changes throughout this revision are marked by change bars,as shown to the right of this paragraph.New and Updated InformationThis table contains the changes made to this revision.TopicPageUpdated the terminology for determining fiber topology1
11、5Added information for allowable ring configurations18Included installation procedures for fiber repeater modules anda repeater adapter59Updated status indicator descriptions for fiber repeater modules anda repeater adapter734Rockwell Automation Publication CNET-IN001C-EN-P-October 2011Summary of Ch
12、angesNotes:Rockwell Automation Publication CNET-IN001C-EN-P-October 20115Table of ContentsPrefaceAdditional Resources.9Chapter 1Get Started with the ControlNet Network Fiber Media SystemWhy Choose a Fiber-optic Media System?.11Analyze Your Network.12Identify Fiber Media Components.12Fiber-optic Cabl
13、e.13Nodes.13Connectors.13Repeater Modules.14Repeater Adapters.14Determine Network Topology.15Point-to-Point Topology.16Star Topology.17Ring Topology.18Plan the Installation of the Fiber Media Components.19Choose the Fiber Media System Composition.19Configure the Media in RSNetWorx for ControlNet Sof
14、tware.25Set up the Network SMAX Parameter in RSNetWorx Software.25Terminate Your Fiber Cable.26Test Your Fiber Media Connections and Segments.26Power Your Repeaters.26Verify Your Network.26Chapter 2Topology and Signal ConsiderationsDevelop a Plan.27Redundant Media.28Topology Considerations.29Coax Se
15、gment Constraints.30Example Coax Segment Constraint.30Fiber Segment Constraints.31Select a Module Type Based on Distance Requirements.31Simplex Cable.31Duplex Cable.32Multi-fiber Backbone Cable.32Estimate Cable Lengths.331786-RPFS Module.341786-RPFM Module.341786-RPFRL/B Module.341786-RPFRXL/B(Fiber
16、 Ring or Point-to-Point)Module.35Determine Attenuation Levels.35Attenuation Levels for a Short-distance Fiber Segment.35Attenuation Levels for Medium-distance Fiber Segments.37Attenuation Levels for Long-distance Fiber Segments.38Attenuation Levels for an Extra-long Fiber Segment.386Rockwell Automat
17、ion Publication CNET-IN001C-EN-P-October 2011Table of ContentsDetermine Propagation Delay.38Maximum Propagation Delay Through a Network.39Maximum Propagation Delay and Skew Through a Redundant Network.40Chapter 3Guidelines for Fiber-optic InstallationGeneral Rules and Safety.43Warnings.43Hire Fiber-
18、optic Specialists for Installation and Certification.43Guidelines for Handling Fiber-optic Cable.44Types of Fiber Media Installations.45Pulled Application Guidelines.45Direct Attachment.45Indirect Attachment.46Conduit and Duct Installation.46Aerial Installation.48Direct Burial Installation.50Open Tr
19、ench Installation.50Vertical Installation.52Chapter 4Terminate Your Fiber-optic CableWhat Is Termination?.53Terminate Your Cable.54Chapter 5Verify Your NetworkSet Network Parameters.55Measure Power Loss.55OTDR Measurement.57Appendix AInstall Your Fiber Repeater Modules and Repeater AdaptersInstallat
20、ion Guidelines.59Mount the Fiber Module.60Install the Ferrites.62Connect a 1786-RPFS Module.65Connect Fiber Repeater Modules.66Terminate the Cable.67Wire a Repeater Adapter Module.68Troubleshoot the Module.69Specifications forFiber-optic Cable.701786-RPFS Fiber-optic Cable.701786-RPFM Fiber-optic Ca
21、ble.701786-RPFRL/B Fiber-optic Cable.701786-RPFRXL/B Fiber-optic Cable.71Rockwell Automation Publication CNET-IN001C-EN-P-October 20117Table of ContentsAppendix BStatus Indicators1786-RPFS and 1786-RPFM Status Indicators.761786-RPFRL/B or 1786-RPFRXL/B Status Indicators.771786-RPFRL/B or 1786-RPFRXL
22、/B Relay Contact Connectors.78Glossary.79Index.838Rockwell Automation Publication CNET-IN001C-EN-P-October 2011Table of ContentsNotes:Rockwell Automation Publication CNET-IN001C-EN-P-October 20119PrefaceThis guide provides basic information for fiber cable planning and installation.Actual procedures
23、 for installing your system may vary depending on cable style and installation environment.We recommend that you consult a network design specialist for the design of your fiber network.Refer to the Glossary for clarification of terms associated with fiber technologies.Additional ResourcesThese docu
24、ments contain additional information concerning related products from Rockwell Automation.You can view or download publications at http:/ order paper copies of technical documentation,contact your local Allen-Bradley distributor or Rockwell Automation sales representative.IMPORTANTTo successfully ap
25、ply the concepts and techniques contained in this manual,you must have a fundamental knowledge of electronics and electrical codes.ResourceDescriptionNetLinx Selection Guide,publication NETS-SG001.Describes the NetLinx-based networksDeviceNet,ControlNet,and EtherNet/IP.ControlNet Media System Compon
26、ents List,publication AG-PA002Lists category numbers and specifications for the components that comprise the ControlNet media system.ControlLogix System User Manual,publication 1756-UM001Describes how to use your ControlLogix operating system.ControlNet Modular Repeater Adapter Installation Instruct
27、ions,publication 1786-IN013Provides instructions for installing arepeater adapter.ControlNet Modules in Logix5000 Control Systems User Manual,publication CNET-UM001Describes how your Logix5000 controller communicates with different devices on the ControlNet network.ControlNet IP67 Tap and Cable Asse
28、mblyKit Installation Instructions,publication 1786-IN017Provides installation instructions for a tap with an IP67 rating.ControlNet Coax Media Planning and Installation Guide,publication CNET-IN002Describes the media that comprises a copper cable system.Industrial Automation Wiring and Grounding Gui
29、delines,publication 1770-4.1Provides general guidelines for installing a Rockwell Automation industrial system.Product Certifications website,http:/Provides declarations of conformity,certificates,and other certification details.10Rockwell Automation Publication CNET-IN001C-EN-P-October 2011PrefaceN
30、otes:Rockwell Automation Publication CNET-IN001C-EN-P-October 201111Chapter 1Get Started with the ControlNet Network Fiber Media SystemThis chapter is an overview of the process you need to follow when you apply fiber media.Some of the information in this chapter repeats in subsequent chapters for i
31、nstructional purposes.Why Choose a Fiber-optic Media System?Fiber media holds many advantages over traditional copper media.Since fiber-optic media transmits digitized information via light pulses over glass or plastic fibers,it avoids many of the problems common with copper applications.In certain
32、applications,the advantages of fiber over coax media outweigh the higher cost of fiber media and components.TopicPageWhy Choose a Fiber-optic Media System?11Analyze Your Network12Identify Fiber Media Components12Determine Network Topology15Plan the Installation of the Fiber Media Components19Choose
33、the Fiber Media System Composition19Configure the Media in RSNetWorx for ControlNet Software25Terminate Your Fiber Cable26Test Your Fiber Media Connections and Segments26Power Your Repeaters26Verify Your Network26ATTENTION:If you are using fiber in an intrinsically safe area,consult with your local
34、safety coordinator.12Rockwell Automation Publication CNET-IN001C-EN-P-October 2011Chapter 1 Get Started with the ControlNet Network Fiber Media System.Analyze Your NetworkTake the time to analyze your current or new network application to see where it makes the most sense to use coax or fiber media.
35、If you are creating a new network or adding fiber to an existing network,create a design plan for the fiber segments of your network and identify the purpose for the fiber segments.By creating a plan and analyzing your design you will be eliminating the potential for misapplication of media.Use the
36、example topologies to determine your networks topology.When you understand your networks topology it will help you determine the media components you need to achieve yourapplication requirements.Identify Fiber Media ComponentsThe ControlNet network fiber media system is comprised of these components
37、:Fiber-optic Cable Nodes Connectors Repeater Modules Repeater AdaptersFor information on purchasing these components,see the ControlNet Media System Components List,publication AG-PA002.Table 1-Fiber Media AdvantagesFeaturesBenefitsElectrical isolationFiber media is isolated from any potential elect
38、rical sources that cause disruptions on copper media.Fiber media iswell-suited for installations between buildings,and provides immunity to lightning strikes.Immunity to interferenceFiber media is immune to EMI(electromagnetic interference)since it uses light pulses on glass fibers.Fiber media is ef
39、fective in noisy environments(heavy machinery,multiple cable systems,and so forth)where copper could suffer disruptions.Fiber media is also suited forhigh-voltage environments.Longer distancesFiber media has less transmission loss than copper media.The lower loss in fiber media means fewer repeaters
40、 than copper media,making fiber more effective for applications requiring long-distance media connections.Decreased size and weightFiber media is smaller and lighter than coax media for ease of installation.Entry into hazardous areasFiber media is a portal for information into hazardous areas,reduci
41、ng the risk of injury.For more information on choosing components for use in hazardous areas,refer to the ControlNet EX Media Planning and Installation Guide,publication CNET-IN003.Rockwell Automation Publication CNET-IN001C-EN-P-October 201113Get Started with the ControlNet Network Fiber Media Syst
42、em Chapter 1Fiber-optic CableFiber-optic cables consist of three major components,the buffer and coating,cladding,and the core.Figure 1-Fiber-optic Cable ComponentsNodesA network is a collection of segments with nodes connected together by repeaters.A node is any physical device connecting to the Co
43、ntrolNet fiber or ControlNet media system that requires a network address to function onthe network.ConnectorsFiber cable connectors connect fiber cable to the fiber repeater module.The medium,long,and extra-long distance fiber repeater modules use an ST-type connector and the short-distance fiber r
44、epeater modules use a V-pin type connector.The short-distance fiber cables come factory terminated invarious lengths.You can increase the distance of the network by using low loss cable and connectors.See page33 for more information.CoreCoatingCladdingBufferTable 2-Fiber-optic Cable DescriptionParts
45、DescriptionBuffer and coatingThe buffer and coating are the material that surround the glass fiber.They are responsible for protecting the fiber strands fromphysical damage.CladdingThe cladding is a material that provides internal reflection so that the light pulses can travel the length of the fibe
46、r without escaping from the fiber.CoreThe core is the cylinder consisting of glass fiber that carries information in the form of light pulses.14Rockwell Automation Publication CNET-IN001C-EN-P-October 2011Chapter 1 Get Started with the ControlNet Network Fiber Media SystemRepeater ModulesThere are t
47、wo types of repeater modules:coax repeater(catalog number1786-RPCD)and fiber repeaters(catalog numbers 1786-RPFS,1786-RPFM,1786-RPFRL/B,and 1786-RPFRXL/B).Although you can repeat coax signals on a network by using a 1786-RPCD module,this manual mainly focuses on fiber cabling for the fiber repeater
48、modules.See the ControlNet Coax Media Planning and Installation Guide,publication CNET-IN002,for more information on ControlNet copper networks.The fiber repeater modules send an optical signal through the fiber cable to the next fiber repeater module on the network.The combination of the repeater a
49、dapter(see below)and a fiber repeater module,such as the 1786-RPFM,is referred to as a fiber repeater.Repeater AdaptersThe ControlNet network uses a modular fiber repeater system.The 1786-RPA/B repeater adapter connects to both coax and fiber media,supplies power to the repeater modules,and repeats
50、signals from the coax media to the fiber repeater modules.The repeater adapter can supply a maximum of 1.6 A 5V DC of current to power the repeater modules.To determine how many repeater modules you can use with a single repeater adapter,calculate the current draw of all repeater modules in your sys