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1. 2 Feature OVEIVIOW S 3 ODTONS and ACCESSONCS Lee x RE 3 Chapter 2 EOTec ControlNet Hardware 4 Key Self Healing Ring Features rarrnnrrnnnnennnnnnnnnnanrnnnnnnnnrnnnnnnanrnnnnnnanennnnnnne 4 Self Healing Ring Module OVErview ccccceccceeeceeeeaeeceeeeeeeeseeeeaeeeseesaeess 5 Self Healing Ring Module Features ccccccccceecceecesececeeeeeeeeseneeseeeseeeeaneees 5 Master Slave Switch Settings eese nennen 7 Switch Settings for Single Self Healing Ring eseeeessssssss 8 Switch Settings for Dual Self Healing Ring rrrrrrnnrnrnrnnnrevrnnnrrrvrnnrrrnrnnnnennnnn 8 Wiring Guidelines for Self Healing Ring Modules 9 Fiber Optic Cable Lengths rrrnnrnnnnnnanernnrnnnnnranrnnnnrnnnnnnanennnnnnnnnnanennnnennnnen 10 Optical Transceiver Specifications cccccccceecceeceeeesseeeseeeeeeeeteeeteeeneeaaes 10 Estimated Cable Lengltlis eno eee 10 Maximizing System Cables esee 10 ControlNet Self Healing Ring Fault Indicators sssssse 11 local and Remote Aam Luse e PH ge dc dm Pda E eH D ene 12 4 20mA Fault PredictlOL suc esten ruxi E x Rn ep Ex D MUTA Reipub da xc vU GN T ERE C axes 13 Chapter 3 Network Configurat
2. Weed Instrument Fiber Optics EOTec 2000 ControlNet Ring Communications Manual Self Healing Ring Modules for ControlNet Physical Media Layer November 2008 First Edition Weed Instrument Company Inc 707 Jeffrey Way P O Box 300 Round Rock TX 78680 0300 USA The Association for Users of ControlNet Tel 512 434 2850 nA Automation Fax 512 434 2851 Encompass E mail fiberservice weedinstrument com Product Partner Web www weedinstrument com Americas Asia Pacific Weed Instrument Co Inc reserves the right to make any modifications to this document or the information contained herein at any time without notice Limited Warranty Weed Instrument Co Inc Seller warrants that the Products will operate substantially in conformance with Seller s published specifications when subjected to normal proper and intended usage by properly trained personnel for a period of two 2 years from the date of shipment to Buyer the Warranty Period Seller agrees during the Warranty Period provided it is promptly notified in writing upon the discovery of any defect and further provided that all cost of returning the defective Products to Seller are pre paid by Buyer to repair or replace at Seller s option defective Products so as to cause the same to operate in substantial conformance with said specifications Replacement parts may be new or refurbished at the election of Seller All replaced parts shall
3. 2 Transceivers Both Fiber 1 and Fiber 2 are supported by Small Form factor Pluggable SFP transceivers A ring is formed by connecting fiber 1 cable in one direction while connecting fiber 2 in the other direction around the ring Single ring see figure 1 1 Dual ring see figure 1 2 Fiber I amp 2 Activity Both fiber ports have local transmit TX and receive RX activity light to provide fiber activity status information For alarm information consult Troubleshooting Fiber I amp 2 Alarms Both Fiber 1 and Fiber 2 each have alarm support Each have an LED for local status and a dry contact relay to provide status to a remote location Fiber I amp 2 4 20mA Outputs Fiber 1 and Fiber 2 are each supported by a 4 to 20mA output This signal is based on the light intensity received by each port A 4mA reading indicates no light received The reading increases as the received light intensifies For additional wiring information consult Wiring Guidelines For alarm information consult Troubleshooting Table 2 1b EOTec 2000 ControlNet Ring Communications Manual ControlNet Hardware Self Healing Ring Module Features ControlNet Port The Self Healing Ring module can be attached to any ControlNet network This will connect directly ControlNet to the coax trunk line via a ControlNet tap Single ring see Active LED gt figure 1 1 Dual ring see figure 1 2 ControlNet Activity Each Self Healing Ring module has an L
4. ant CHANNEL B b cux Jj nnel CHANNEL A a heron CHANNEL B CHANNEL B ccm Jern ila ET 7 Dual Channel Link ControlNet Channel Ring Redundancy 4 CHANNEL A RING CHANNEL B RING 3 Figure 3 4 17 EOTec 2000 ControlNet Ring Communications Manual Network Configurations As with the single ring topology shown in figure 3 2 other network topologies can interconnect into a ring topology However with the redundant ControlNet systems both channels must be identical In figure 3 2 if you wanted to create a redundant system not only would you need to duplicate the hardware and media in the ring but also the hardware and media shown in the other three topologies as well point to point daisy chain star All nodes must support both an A and a B channel in a redundant system The maximum allowable skew between data arriving for channel A versus channel B is 1 6us see Example 2 Maximum Delay for more information on maximum skew Using the standard delay for fiber of 5 1ns per meter this is approximately 300 meters or 1000 ft Also redundant rings work best when channel A cables are routed away from channel B cables While it is possible to duplicate all the other topologies shown in figure 3 2 these redundant channel ControlNet rules do not allow for the multiple mismatches which will occur when routing cables between the various pieces of hardware When dual redundanc
5. 3 The maximum length of a fiber cable section for the optical transceivers used in each ring module is dependent on the quality of the fiber number of splices and the number of connectors When estimating maximum cable length take into account attenuation that occurs along the entire fiber path Attenuation refers to the decay in the strength of the light signal along the cable path Consult your local distributor for attenuation specifications prior to purchasing your fiber media components 25 EOTec 2000 ControlNet Ring Communications Manual Planning and Installation Table 4 3 below provides transceiver specifications to help in selecting the proper Weed self healing ring module for your application Optical Transceiver Specifications Model Fiber Type Max Optical Dynamic Range Typical Max Fiber Size Distance mi km 2C31 LC MM MM Multi mode 11 dB Into 62 5 125um fiber 2 5mi Akm 7 5 dB into 50 125um fiber 1 9mi 3km 2C31 LC SM SM _ Single mode 19 dB into 9 125um fiber 12 4mi 20km 2C32 LC MM MM Multi mode 11 dB into 62 5 125um fiber 2 5mi Akm 7 5 dB into 50 5 125um fiber 1 9mi 3km 2C32 LC SM SM _ Single mode 19 dB into 9 125um fiber 12 4mi 20km Table 4 3 Understanding Fiber Attenuation Before selecting the proper transceiver to use in your application you must first calculate the power budget for the fiber cable lengths in your plan But remember if you install longer distance fiber cables install bulkhead
6. a fiber break occurs In a dual channel system see figure 1 2 there is one fiber ring to support Channel A and an entirely separate fiber ring to support Channel B The DSHR also provides a third or tertiary path to increase redundancy for network systems that cannot afford any unscheduled down time EOTec 2C32 ControlNet Dual Self Healing Ring DSHR ual Channel ual Channel dm AT TI T D s 4 Link T RT ZA T DE Dual Link CHANNEL A RING CHANNELB RING Figure 1 2 EOTec 2000 ControlNet Ring Communications Manual Introduction Feature Overview EOTec 2000 ControlNet Self Healing Ring modules can support both Multi Mode and Single Mode optical modules and includes diagnostic features that are not even offered as options on most other optical modules Remote Link Alarm Relay Remote Global Alarm Relay Sets an alarm when the dual channel Sets a single alarm when any power or link has a communication fault communication fault occurs in either fiber communication ring Dual Remote Power Alarm Relays Sets an alarm when either input has a power fault Fiber 1 and Fiber 2 Remote Alarm Relays Sets an alarm when either optic Fiber has a communication fault Dual 15 30VDC Power Inputs Dual power inputs to insure a consant power source Real Time 4 20mA Outputs Measures light intensity on both Fiber 1 amp 2 to report real time optical f
7. both the EOTec 2C31 ControlNet Self Healing Module and the 2C32 ControlNet Dual Self Healing Module are designed to give reliable operation in harsh industrial environments Both these modules have direct electrical connections over coax cable to your ControlNet devices The 2C31 is used to create a single ring to support redundancy for a single channel system The 2C32 is used to create a dual ring to support dual redundancy on both Channel A and B Key Self Healing Ring Features 2C31 gt Single and Dual Self Healing Rings for High Reliability o Highest number of nodes supported o Fully compliant with ControlNet specification gt Small Form factor Pluggable SFP High Performance Laser Optics o 1310nm lever latch SFP laser transceiver o Real time indication of fiber optic health o Single Multi mode conversion available Global Ring Failure Alarm with Comprehensive Diagnostics o Indicator and relay monitor o Four additional alarm relay outputs o Minimizes downtime gt Compact Enclosure o Reduced installation space required o Standard 35 mm DIN rail mounting gt Industrial Design o CE Marked o Class I Division 2 Groups A B C amp D T4 Accessories Available o Duplex patch cords LC to ST LC to SC etc o Link cables o Spare SFP Transceivers EOTec 2000 ControlNet Ring Communications Manual ControlNet Hardware Self Healing Ring Module Overview The quickest way to begin understanding the functio
8. connectors or fusion splices expose the cable to multiple sharp bends or employ different quality cable or connector types YOU must recalculate your attenuation levels Use the example below to help you understand how to determine fiber attenuation levels of your fiber cables From table 4 3 above you can see the maximum optical dynamic range or power budget for a 2C32 LC MM MM Module is 11dB using 62 5 125um fiber This means that the maximum amount of attenuation of light between this module and the one connected at the other end of the fiber can not exceed 11dB This power budget is valid throughout the operating temperature range 0 to 60 C If you modify the cables with splices or connectors then you must recalculate the attenuation levels Use the steps in table 4 4 to determine the correct fiber attenuation for selecting the correct EOTec self healing ring modules for your application Step Description Explanation Determine total power budget Given the application the size of the network and fiber type how much total loss dB is expected and allowed 2 Determine insertion loss Add Account for all added attenuation from insertion loss up the loss from connectors on the fiber segments Do not include the two splices bulkhead etc connectors on the ends of each fiber cable Determine cable loss Add up Select fiber cable and identify typical power loss the loss from all cable lengths Loss 7 loss of lig
9. event can affect the reading and be discovered and corrected before a fault occurs For more information on connecting the 4 20mA output refer to the Module Wiring Guidelines in chapter 2 13 E OTec 2000 ControlNet Ring Communications Manual Network Configurations 3 Network Configurations This chapter describes network ring topologies you can configure using EOTec 2000 ControlNet Self Healing Ring SHR and Dual Self Healing Ring DSHR modules Further this chapter will also address ring topologies which incorporate EOTec 2000 ControlNet Stacks using the EOTec 2C20 and provides details on how to build such networks Network Setup and Operation As each network is different Weed offers easily configured modules to meet your unique ControlNet needs Using their patent pending technology Weed has developed the EOTec 2000 ControlNet Self Healing Ring SHR and Dual Self Healing Ring DSHR modules are easily selected to meet these communication needs To begin selection first start at the heart of the network the ControlNet trunk line This is a bi directional coax cable that connects directly to your ControlNet device Both the 2C31 SHR and 2C32 DSHR modules have a bi directional BNC port to connect directly to this ControlNet coax trunk line A power source must be selected to operate your Self Healing Ring modules Both the 2C31 and 2C32 modules have dual 15 30Vdc inputs For mission critical applications a redundant
10. information on Weed Self Healing Ring alarms 14 EOTec 2000 ControlNet Ring Communications Manual Network Configurations Supported Network Configurations When connecting ControlNet nodes together there are several topologies which are supported by EOTec 2000 products This manual s main purpose is to explain how to configure self healing ring and dual self healing ring topologies However it will also illustrate how Point to Point Cascade Daisy Chain and Star configurations can be interconnected with ring topologies to form a network Any of these network configurations can be used and is limited only by the ControlNet maximum delay time Single Channel Ring Communication ControlNet systems using single channel ControlNet Bridges CNBs can be easily designed or converted to a Self Healing Ring using the EOTec 2C31 Self Healing Ring modules Each 2C31 module has two fiber ports Each fiber port has a transmitter and a receiver so each fiber port will be connected with two optical fibers These two fibers are considered a fiber segment As you can see in figure 3 1 the 2C31 supporting Node 2 is connected to Node 5 by one fiber segment in the clockwise direction and to Node 7 by a fiber segment in the counter clockwise direction The ring is then completed by connecting a fiber segment between Node 5 and Node 7 DAISY CHAIN FIBER COMMUNICATION PATH DAISY CHAIN FIBER COMMUNICATION PATH ControlNet Channel Ring Redundan
11. power supply input is available It is highly recommended that each module has two power sources to insure no interruption of service If power is disconnected or a power source outside this specified range is selected an alarm will occur Refer to Local and Remote Alarms for more information Next it is time to determine optical communication type Both the SHR and DSHR modules support multi mode and single mode optical fiber To learn more about selecting the correct Self Healing ring module for your application refer to the Planning a Network section of this manual and in particular Understanding Fiber Attenuation Another consideration is how to use the diagnostic features of the Self Healing Ring modules A simple solution may be to use the dry relay contacts to set alarms with panel or tower lights and then taking the global alarm to a control room to set an initial alarm to alert maintenance personal of a network issue that must be addressed However this only works well in applications where all ControlNet nodes are in close proximity to one another as within one facility In cases where the nodes are several kilometers or miles away from each other then lights are not a good solution These same dry relay contacts can then be taken to a DC Input module that can reside in the same chassis with your ControlNet Bridge CNB to be used as alarms by an application of your choice Also see ControlNet Self Healing Ring Fault Indicators for more
12. section must be less than the stated optical power budget of the optical module selected Estimated fiber optic cable distance is based on typical cable attenuation and assumes optimum cable quality See sections Understanding Fiber Limitations and Understanding fiber Attenuation in Chapter 4 for more detailed information on this subject Maximizing System Cables Whenever possible avoid splicing your cable Connectors can cause considerable attenuation and limit the maximum length of your system Be certain to measure the attenuation of each different cable sections after the cable is installed 10 EOTec 2000 ControlNet Ring Communications Manual ControlNet Hardware ControlNet Self Healing Ring Fault Indicators This section describes the 4 level fault protection system of the Self Healing Ring on both the 2C31 SHR and 2C32 DSHR modules Each level provides additional ring fault information for troubleshooting network faults as shown in figure 2 4 The fault indication system begins with data communication indicators LEDs on the front of each module which provide status for the flow of data packets through the network The next stage provides fault indicators LEDs which are also located on the front of each module These will identify what type of fault has occurred and corresponds with the third stage or remote alarms relays that provide contacts which can be used for a remote alarm system Finally any of these fault
13. warranty Buyer shall pay Seller therefore at Seller s then prevailing time and materials rates ANY INSTALLATION MAINTENANCE REPAIR SERVICE RELOCATION OR ALTERATION TO OR OF OR OTHER TAMPERING WITH THE PRODUCTS PERFORMED BY ANY PERSON OR ENTITY OTHER THAN SELLER WITHOUT SELLER S PRIOR WRITTEN APPROVAL OR ANY USE OF REPLACEMENT PARTS NOT SUPPLIED OR APPROVED BY SELLER SHALL IMMEDIATELY VOID AND CANCEL ALL WARRANTIES WITH RESPECT TO THE AFFECTED PRODUCTS EXCEPT AS EXPRESSLY PROVIDED IN THIS WARRANTY SELLER DISCLAIMS ALL WARRANTIES WHETHER EXPRESS OR IMPLIED ORAL OR WRITTEN WITH RESPECT TO THE PRODUCTS INCLUDING WITHOUT LIMITATION ALL IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE SELLER DOES NOT WARRANT THAT THE PRODUCTS ARE ERROR FREE OR WILL ACCOMPLISH ANY PARTICULAR RESULT Copyright Copyright 2008 Weed Instrument Company Inc All rights reserved Reproduction without permission is prohibited Standards and Warnings The EOTec 2000 ControlNet Ring Modules from Weed Instrument have been designed to meet the following standards E CE us APPROVED AN N AN EMC immunity IEC61326 1 1998 Equipment for Measurement Control and Laboratory Use FM Approved for Class I Division 2 Groups A B C amp D T4 0 C To 60 C When used in Hazardous Locations Class I Division 2 Groups A B C amp D T4 Substitution of components may impair suitability for Class I Di
14. your ControlNet devices Fiber optic technology provides many advantages for industrial control applications These include EMI RFI immunity the ability to run fiber optic cable through hazardous areas and the ability to connect long distance communication links Both EOTec 2C31 amp 2C32 Modules come with LED indicators for local determination of communication failures and relay contacts to support a remote alarm system In addition each has redundant power supply inputs to provide a constant power source Also both fiber optic ports have diagnostics which provide a 4 to 20mA real time output for measuring the received optical power level light intensity of all glass fiber cables The global alarm is unique because it is passed between all modules A set of relay contacts is provided on every module and will close in an alarm condition As a result only one module needs to be connected to a remote alarm to alert when a fault has occurred anywhere within your network ControlNet is a registered trademark of ControlNet International Ltd EOTec 2000 ControlNet Ring Communications Manual Introduction EOTec 2C31 ControlNet Self Healing Ring SHR 5 DAISY CHAIN FIBER COMMUNICATION PATH DAIST CHAIH FIBER COMMUNICATION PATH RETURN PATH CREATES FIBER COMMUNICATION RING Figure 1 1 In ring topologies an additional fiber path is added shown in figure 1 1 to insure that communication is maintained when
15. 00 ControlNet Ring Communications Manual Troubleshootin Optical Interface Indicators Fanen Fiber 1 Fiber 2 MEM Solid Green Module is receiving good data Receive RX Module is receiving data with errors The LED flashes red 1 sec for every bad packet With enough errors the light will appear to be continuously red 1 Possible loose connector TX or RX on either end of fiber 2 Possible bad transceiver TX or RX on either end of fiber 3 Possible bad module TX or RX on either end of fiber No light received from transmitter Possible disconnected connector TX or RX on either end of fiber Possible broken Fiber Possible bad transceiver TX or RX on either end of fiber Possible bad module TX or RX on either end of fiber Solid Green Module is transmitting data Default when transceiver is in Transmit TX No data is being transmitted Off 1 Insure the transceiver is plugged in correctly 2 Possible bad transceiver 3 Possible bad module Link Active Indicator 2C32 Only Solid Green Module is receiving good data and status signals Link Active Module is receiving data with errors The LED flashes red 1 sec for every bad packet With enough errors the light will appear to be continuously red 1 Possible loose connector on either end of cable 2 Possible bad cable 3 Possible bad module on either end of fiber No data or status signals received 1 Possible disconnected connector on either end
16. 1 When you identify the shortest fiber segment follow the reverse direction to the same adjacent node and you have identified the longest communication path This is where the worst case delay will be If the shortest fiber segment breaks these two nodes must still be able to communicate taking the longest path Rule 2 When your ring has no coax spurs as opposed to the coax segment where Node 2 and Node 3 connect shown in figure 4 2 then there is virtually no coax cable to consider in the calculation Simply remove the shortest fiber segment from the calculation Add up the delays of the remaining segments and all the ring module delays and this is the path for your longest delay time Rule 3 If there are several long spurs coming off the ring you may have more calculations to perform to find the longest path The device at the end of the longest coax spur will be one of the two furthest nodes but rules 1 and 2 may not apply in configurations where coax segments are long and fiber segments are very short Rule 4 Any device not directly connected to the ring such as Node 2 in figure 4 2 will not have a redundant path If the coax cable marked D6 should break Node 2 becomes isolated from the rest of the network Another ring module should be added so that all four nodes connect to the fiber ring and insure a secondary path for all devices 31 EOTec 2000 ControlNet Ring Communications Manual Planning and Installation Example 2 M
17. ED to provide status on the ControlNet port ControlNet Input gt i For alarm information consult Troubleshootin Q Table 2 1c Master Slave Switch Settings As shown in figure 2 1 both the 2C31 and 2C32 have a Master Slave switch that must be set appropriately for ring operation to function correctly When a module is set as the master or ring manager it controls the routing of data messages around any broken or unusable glass fiber cables When configuring a ControlNet Network using EOTec Self Healing Ring modules it is important that only one module in the ring is set as the Master All other modules in the ring must be set in the Slave position In a properly configured ring the network may function properly even if these switches are not set correctly However the master is important to all break heal management functions so when these switches are not set correctly your network may unexpectedly fail when a simple fault occurs 2031 2032 Master Slave Switch Figure 2 1 For proper switch settings see figure 2 2 for single ring and figure 2 3 for dual rings EOTec 2000 ControlNet Ring Communications Manual ControlNet Hardware The Master Self Healing Ring module can be connected to any ControlNet node Figure 2 2 shows a single ring with the master module connected to Node 2 thus the ring modules connected to nodes 1 and 3 are set to the Slave position Switch Settings for Single Self Hea
18. In single ring configuration it is very important that each Self Healing ring module remains powered to insure each ControlNet node stays on line at all times Weed Instrument highly recommends the use of redundant power supplies to insure a constant power source at each Self Healing Ring module Used in conjunction with the fault indication system that comes with every Self Healing Ring module either a power supply fault or a fiber fault can be identified and quickly remedied For more information on the Self Healing Ring module alarm system refer to the Fault Indicators sections of this manual segment 1 2 Figure 3 6 EOTec 2000 ControlNet Ring Communications Manual Network Configurations Dual Channel Security Dual channel redundancy is the most effective way to protect the integrity of your ControlNet system Using the EOTec 2C32 dual redundant rings can be created on any ControlNet systems where single channel ControlNet Bridges CNBRs are used A Dual Self Healing ring can withstand multiple fiber breaks as shown figure 3 7 Although fiber segments A2 3 A1 3 B1 2 and B2 3 are all broken Node 3 can still communicate with the other two nodes over fiber segment B1 3 A chain of communication still remains between all three nodes segment A1 2 and B1 3 Furthermore the Dual Channel Link will insure all data arrives at both the A and B channels within the 1 6us skew time For the dual ring configuration it is still very importan
19. Manual Product Series Additionally patch cords can be purchased from Weed to convert from your standard optical fiber termination to the LC connectors on the Self Healing Ring modules Choose from the following available options Accessories Patch Cord Conversion Cables If the cable conversion you require is not listed please contact our factory for availability 45 EOTec 2000 ControlNet Ring Communications Manual Service Information C Service Information Technical Support and Service For technical support please go to our website at www weedinstrument com contact us technical html Installation and Operation Our professionals guide you through the installation and operation of your new product so that it is efficiently operational in the minimum amount of time Weed Instrument also helps you install options and upgrades to ensure that your product is successfully enhanced with more performance and new capabilities Troubleshooting Should you have a question regarding the operation of your instrument or its perceived malfunction the technical support experts will help you determine the issue and offer you the best possible solution Before contacting us please go to our website at WWW Weedinstrument com contact us tech support troubleshooting html and determine if any of the troubleshooting tips solve your problem Service and Repair If you need service or repair please go to our website at www weed
20. Total Channel A Propagation Delay 72 2281 Total Channel B Propagation Delay 73 4368 Total Channel A Propagation Delay 72 2281 Total Channel B Propagation Delay 73 4368 Minus shortest fiber segment D7 12 6953 Minus shortest fiber segment D7 12 5050 Table 4 12 Table 4 13 1x 1us 3556m fiber x 5 01ns 17 8156 1x 1us D7 a D8 a A to B channel skew 60 9318us ChB 59 5328 us ChA 1 399us This example shows a valid redundant network as the calculated skew between channel A and B is 1 399us still below the maximum network skew of 1 6us Now for those of you that have been paying very close attention you may be saying to yourself Wait just a minute Shouldn t the maximum delay time in table 4 12 be the same as what was found in table 4 11 Yes it should if you also subtract the delay from the coax segment marked D1 59 5328 0 0250 59 5078 However when remembering rule 2 short coax segments can normally be ignored when calculating the maximum delay time of your network Also as you will soon find out when verifying your network parameters the lowest length coax accepted by RSNetworx is 100m 33 EOTec 2000 ControlNet Ring Communications Manual Planning and Installation Verifying Network Parameters You can use RSNetworxT for ControlNet to determine whether or not your system meets the network parameter requirements Based on your system planned requirements NUT SMAX UMAX types
21. Vdc Power Green Green IN 1 amp IN 2 Power not gt 15 or lt 30Vdc at IN 2 input connector Solid Solid 1 Check DC input at cage clamp connector Green Red 2 Check fuse Replace if blown 3 If both input power and the fuses are good replace module Power not gt 15 or lt 30Vdc at IN 1 input connector Solid 1 Check DC input at cage clamp connector Green 2 Check fuse Replace if blown 3 If both input power and the fuses are good replace module Power not supplied to both input connectors Off Of Check DC input at cage clamp connector Check fuses Replace if blown If both input power and the fuses are good replace module Electrical Interface Indicator Solid Green ControlNet Signal is good ControlNet Flash Green ControlNet Initialization Happens only during network setup SUO Data error on ControlNet signal at coax trunk The LED flashes red 1 sec for every bad packet With enough errors the light will appear to be continuously red Check all BNC connectors on this coax segment Insure all 75Q terminators are connected correctly Replace module and all devices on coax one at a time until bad device is found No input communication from coax on BNC Check BNC connector and check the other end of the coax to insure it is connected to another device Insure ring s only has one Master module Replace module and all devices on coax one at a time until bad device is found 38 EOTec 20
22. and can not be included inside the ring itself ControlNet allows for a maximum of 99 addressable nodes Repeaters do not require an address so they do not count against the total of 99 As many as 48 tap connections are allowed on a maximum segment length of 250m all coax cable must total to less than 250m An electrical repeater can be used locally distances up to 1000m or for longer distances an optical repeater can be installed For more information on using electrical and optical repeaters see the accompanying EOTec 2000 ControlNet User Manual 24 EOTec 2000 ControlNet Ring Communications Manual Planning and Installation Understanding the Benefits of Fiber Fiber has benefits over electrical coax cable Table 4 2 lists many of these benefits Feature Benefit No Ground Potential Fiber carries no electrical current so it is completely isolated from any potential electrical sources that cause disruptions on copper media and provides immunity to lightning strikes Fiber is made of glass so it is immune to EMI ElectroMagnetic Interference Use Fiber in noisy environments such as heavy machinery and multiple cable systems where copper could suffer communication disruptions Fiber is also a great choice for high voltage environments Fiber conducts light not electrical pulses so it is a safe choice for carrying data communication through hazardous areas Less Signal Loss Fiber media carries data using light pulses not electr
23. and length of cable number and types of repeaters and worst case network delay RSNetworx will validate the network configuration parameters Once the parameters are validated the software will tell you if your configured network is acceptable If your network is not valid you must adjust your planned requirements It is important to understand the application needs of the equipment within your network before adjusting network parameters as these adjustments can keep devices from communicating within an appropriate time frame SMAX maximum scheduled address and UMAX maximum unscheduled address will be used by RSNetworx to determine the maximum addressable nodes that can communicate on the network The NUT Network Update Time determines the interval time for each node to communicate Upon entering RSNetworx from the toolbar menu select Networks and then Properties Enter your network parameters based on the application needs of your ControlNet system Next select Media Configuration the information entered here will be used to determine the maximum network propagation delay in your network Enter the total amount of coax RG 6 Coax Cable and fiber Glass Fiber Cable used to connect the furthest two nodes in your system These lengths will be expressed in meters and round up to the nearest 100m See Understanding Propagation Delay for further information on which media segments to include Next you must enter the types of devices used t
24. ata signals will pass through You should be aware that this does not mean all media and EOTec modules in your network only the media and modules that link the two furthest nodes of your system Network delays include the delays through coax and fiber media and the EOTec Self Healing Ring modules you are planning to use Use Example 1 and Example 2 to help you understand which media and Weed modules to use when calculating maximum propagation delay In order for a network to operate the sum of the network s delays must be equal to or less than the ControlNet specified maximum propagation delay of 121ys The total network allowable delay each way is 121us The propagation delays through taps are minimal and can be ignored Listed in table 4 5 are delay values for EOTec ControlNet devices and media Media Item Propagation Delay Time 2C31 1us module 2C32 1us module RG 6 Coax Cable 4 17us km or 1 27us 1000 ft Multi mode Fiber 5 01us km or 1 53us 1000 ft Single Mode Fiber 5 01us km or 1 53us 1000 ft Table 4 5 28 EOTec 2000 ControlNet Ring Communications Manual Planning and Installation Example 1 Maximum Delay Single Channel The following example figure 4 2 shows a single channel Self Healing Ring network designed with both coax and optical fiber segments Each delay in the network is marked D1 through D10 It is important to note that maximum delay time is based on the maximum number of ring modules and maximum lengt
25. aximum Delay Dual Channel This example begins where the previous example left off with the same single communication channel used in Example 1 However now we will use a redundant communication path channel B to insure greater reliability for this ControlNet system The cables for channel B must be routed in a different pathway from Channel A to insure this greater redundant reliability When the same cable trays or conduits are used then there is a greater chance that both paths can be removed during the same unfortunate accident For dual channel systems ControlNet transmits two identical packets at the same time To insure redundancy ControlNet also expects the two identical packets to be delivered at approximately the same time Since longer fiber equals a longer delay time all fiber segments for A and B channels must be approximately the same length As it s difficult to route two separate paths of equal length ControlNet allows for a skew in the propagation delay or delivery time of packets between channels A and B ControlNet specifies this to be no greater than 1 6us channel A to channel B Dual Redundant Self healing Ring CHANNEL A om _ ab CHANNEL B cod Ea CHANNEL B c Figure 4 3 A skew of only 1 6us does not seem like much but when divided by the standard delay time of 5 01ns meter for typical optical fiber this allows for roughly 319 36 meters or 1047 77 feet A good rule of thumb to remember would b
26. aximum distance you can achieve Consult your local distributor for attenuation specifications prior to purchasing your fiber media components The Small Form factor Pluggable SFP Transceivers used in the EOTec 2000 ControlNet Ring modules are designed for use with either multi mode or single mode optic fiber The wavelength used for both is 1310nm Table 2 5 below provides estimated maximum distances for selecting the proper transceivers for the fiber optic cable lengths needed in your network All maximum distances are based on transceiver wavelengths and typical attenuation per fiber diameters Optical Transceiver Specifications Model Fiber Type Max Optical Dynamic Range Typical Max Fiber Size Distance mi km 2C31 LC MM MM Multi mode 11 dB into 62 5 125um fiber 2 5mi Akm 7 5 dB into 50 125um fiber 1 9mi 3km 2C31 LC SM SM Single mode 19 dB into 9 125um fiber 12 4mi 20km 2C32 LC MM MM Multi mode 11 dB into 62 5 125um fiber 2 5mi Akm 7 5 dB into 50 5 125um fiber 1 9mi 3km 2C32 LC SM SM _ Single mode 19 dB into 9 125um fiber 12 4mi 20km Table 2 5 For more information on calculating maximum fiber distance refer to section Understanding Fiber Attenuation in Chapter 4 Estimated Cable Lengths The maximum length of a fiber cable section for any Weed fiber optic module is dependent on the quality of the fiber number of splices and the number of connectors between the transmit and receive diodes The total attenuation for a cable
27. become the property of Seller Shipment to Buyer of repaired or replacement Products shall be made in accordance with the provisions of Section 5 of the Sellers Terms amp Conditions of Sale Lamps fuses bulbs and other expendable items are expressly excluded from the warranty Seller s sole liability with respect to equipment materials parts or software furnished to Seller by third party suppliers shall be limited to the assignment by Seller to Buyer or any such third party supplier s warranty to the extent the same is assignable In no event shall Seller have any obligation to make repairs replacements or corrections required in whole or in part as the result of i normal wear and tear ii accident disaster or event of force majeure iii misuse fault or negligence of or by Buyer iv use of the Products in a manner of which they were not designed v causes external to the Products such as but not limited to power failure or electrical power surges vi improper storage of the Products or vii use of the Products in combination with equipment or software not supplied by Seller If Seller determines that Products for which Buyer has requested warranty services are not covered by the warranty hereunder Buyer shall pay or reimburse Seller for all costs of investigating and responding to such request at Seller s then prevailing time and materials rates If Seller provides repair services or replacement parts that are not covered by the
28. c 2000 ControlNet Ring Communications Manual Default Settings 6 Default Settings This chapter lists the factory default settings when an EOTec ControlNet Self Healing Ring module comes out of the box Use this information to make any changes that may be necessary for tailoring each module to your exact network needs Default Settings The EOTec 2C31 ControlNet Self Healing Ring module SHR and 2C32 ControlNet Dual Self Healing Ring module DSHR come preset in the Master position See Master Slave Switch section for more information on setting this switch to meet your specific network needs 2031 2032 Master Slave Switch There are no jumper changes needed to configure your EOTec ControlNet Self Healing Ring modules for any ControlNet network requirements 41 EOTec 2000 ControlNet Ring Communications Manual Technical Specifications A Technical Specifications General Specifications 99 nodes supported Maximum taps per segment 48 using coax cable length of 250m maximum Maximum coax cable length 1000m when connected to only 2 taps Trunk connection Anywhere on the trunk via ControlNet Tap with Im drop cable required Coax cable connection BNC BNC 0 O Coax propagation delay 4 17us km 1 27us 1000ft Fiber propagation delay 5 01 us km 1 53us 1000ft 35mm DIN Rail Input Voltage 15 30Vdc Nominal 24Vdc 333mA Quiescent 8W LA 24Vde Alarm Output Contacts DPDT Form C relay Rating Maxim
29. coax x 4 17ns 3 4820 6m coax x 4 17ns 0 0250 Node 2 to Node 4 Counter Clockwise Delay Description Total us 835m coax x 4 17ns 3 4820 6m coax x 4 17ns 0 0250 3556m fiber x 5 01ns 17 8156 fi E D7 2534m fiber x 5 01ns 12 6953 6m coax x 4 17ns 0 0250 Total Propagation Delay 18 2273 Table 4 10 7018m fiber x 5 01ns 35 1602 1x 1us 1 0000 6m coax x 4 17ns 0 0250 LIS CIBC Eee eee 59 5078 Table 4 11 30 EOTec 2000 ControlNet Ring Communications Manual Planning and Installation The worst case propagation delay of 56 4608us shown in tables 4 11 is acceptable because it is well within the maximum allowable network delay time of 121us These are also the devices and media that you will use to verify your network parameters Refer to the Verifying Network Parameters section later in this chapter to learn more about proper network verification techniques Getting to the Point to Point The exercise in example 1 shows us how to calculate the worst case propagation delay for any two nodes point to point However this could take quite some time in large network systems so looking for easy ways to identify the longest link becomes handy and straight to the point Did you notice in example 1 that the two paths between Node 2 and Node 3 tables 4 10 amp 4 11 are both the longest and the shortest lengths This is true for any two points plotted along a circle or ring Rule
30. cy RETURN PATH CREATES FIBER COMMUNICATION RING Figure 3 1 The ring is now physically attached but break management must still be activated by setting the Master Slave switch on the front of each 2C31 Only one 2C31 can be set as the Master or ring manager all other 2C31s must be set to the slave position Also see the Master Slave Switch section for more information on proper switch settings for a self healing ring 15 EOTec 2000 ControlNet Ring Communications Manual Network Configurations Other network topologies can interconnect into a Self Healing Ring as well Figure 3 2 uses the same 3 node single ring as the previous example however Node 2 is shown with a Point to Point connection Node 5 in a Daisy Chain and Node 7 as a Star configuration All these configurations can work within the same ControlNet network ControlNet Channel Ring Redundancy RETURN PATH CREATIS FIBER OOM A Te RING Figure 3 2 When connecting three separate facilities that are miles apart the configuration shown in figure 3 2 may work well but only the fiber ring has all the diagnostic features of the 2C31 All coax connections are susceptible to faults Only the ring configuration shown in figure 3 3 provides a redundant path and all the diagnostic features Single ControlNet Channel Ring Redundancy Figure 3 3 16 EOTec 2000 ControlNet Ring Communications Manual Network Configurations Dual Channel Rin
31. dundant network must be able to support redundant Coax connections ControlNet Bridge Redundant CNBR and be connected by two coax cables at all times Any nodes connected to only one side of a redundant cable link will result in media errors on the unconnected trunk cable e Install the cable systems so that all cables at any physical device location can be easily identified and labeled with the appropriate icon or letter Each redundant ControlNet device is labeled so you can connect it to the corresponding cable e Both channels channel A and trunk channel B of a redundant network must have identical configurations Each segment must contain the same number of taps nodes and ring modules Connect all nodes ring modules and any required coax media communication devices needed in the same relative sequence on both channel A and channel B e Install cable on each side of a redundant system so that each cable is about the same length The total difference in length between the two channels skew time of a redundant network goes up as the number of nodes modules increases e he total delay time between the two redundant channels can not be skewed by more than 1 6us 36 EOTec 2000 ControlNet Ring Communications Manual Troubleshootin 5 Troubleshooting Weed provides several solutions to help you diagnose trouble that may occur on the ControlNet Physical Media Layer Understanding the information in this section will help to f
32. e 300 meters of 1000 feet This is in excess of the length of 3 football fields 32 EOTec 2000 ControlNet Ring Communications Manual Planning and Installation The total network delay time for channel A can easily be calculated by adding up all the delays found in example 1 Now a total for channel B must be calculated As you can see in figures 4 12 and 4 13 the delay in channel B is longer than channel A If you remember what was learned from example 1 when determining the total network delay time for a ring it is not necessary to include all of the fiber segments The maximum delay in a ring network will occur when the shortest fiber segment is broken By looking again at tables 4 14 and 4 13 you will see that the fiber segment marked D7 is the shortest Now by subtracting this out you will see that channel B still has the greatest maximum delay time so this is the maximum delay within the redundant network illustrated in figure 4 3 As discussed before this is far below the maximum network update time of 1214s determined by the ControlNet specification By now comparing the two maximum delay times from tables 4 12 and 4 13 we can determine the skew between channel A and channel B Delay Description Total Mus Delay Description Total us 6m coax x 4 17ns 0 0250 6m coax x 4 17ns 0 0250 835m coax x 4 17ns 3 7739 2534m fiber x 5 01ns D7 b 12 5050 6m coax x 4 17ns 0 0250 7018m fiber x 5 01ns 36 0419
33. eivers rrrrrnnrrrrrnnnrerrnnnrrrvrnnnrenrnnrennnsnsrnnnnsne 25 Optical Transceiver Specifications ccccecccceecceseececeececeeeeeseeeesseeesaeeeeenes 26 Understanding Fiber Attenuation rrernnnrrvnnnennnnnernnnnvrnnnnevnnnnnnnnnnnnnnennnnnene 26 Understanding Propagation Delay rrrnnnrrnnnnnrnnnnnennnnrennnrrennnnrnnnnsnnnnnnnnnsnen 28 Example 1 Maximum Delay Single Channel 29 Getting to the Point to Point rrrrrnnrrenrnnnrenrnnnrrvnnsnsnnnnnrrnrnnsnennnnn 31 Example 2 Maximum Delay Dual Channel 32 Verifying Network Parameters cccccccccsesececaeeeeesaeeeeeeeeeeeeaueeesaeeeeesaaeees 34 installing a INeDNOEFK sirarna seende 35 Coax AP Pleat THOS Ec m 35 Fiber Application TIDS pe 36 Redundant Network TIS cete lel band AIR 36 iEelllo riereemt t 37 Diagnosing Network FallUres ccccccsccssecseeceeeceeeceeecseeceeeceeseueseeeseesaeees 37 Interrupting Fault Indicators ccc cecc cece eeece cece seca cece eeseeeseeeseeeeeeeaeeeeeeeeeees 38 POWer SUDDIY INGICAIONS cece peer 38 Electrical Interface Indicator cccccccccseeeeeccesseecceeceeceaeeecsenseesseseesssaeees 38 Optical Interface Indicators rrrrrnrnrrnnrrrvnnnrrrannrrrnnnennanannnnsennnnsnnnnsennnnnennnn 39 Link Active Indicator 2032 Only tiis dran nmt ee eoa cua 39 Remote LED Relay Indicators rrrrnnnrrrnnnnnr
34. en select the appropriate module number that matches fiber type and size that is suitable for your application Optical Transceiver Specifications Model Ring Fiber Max Optical Dynamic Range Typical Max Number Type Type Fiber Size Distance mi km 11 dB into 62 5 125um fiber 2 5mi 4km 2C31 LC MM MM Single Multi mode 7 5 dB into 50 125um fiber 1 9mi 3km l 11 dB into 62 5 125um fiber 2 5mi 4km When selecting Dual Self Healing Ring DSHR modules an additional cable must be purchased to connect these modules at each ControlNet node linking ring A to ring B see network configurations for more information Select from the following cable options Available Dual Channel Cables Part Number Length 2LNK 1M 2LNK 3M Each EOTec 2000 ControlNet Self Healing Ring module has two transceivers so if an optical converter is what meets your needs Weed can easily provide the following solutions Available Optical Converters Model Ring Fiber Max Optical Dynamic Range Typical Max Number Type Type Fiber Size Distance mi km Single mode 19 dB into 9 125um fiber 12 4m1 20km 2C3 1 LC SM MM Single 11 dB into 62 5 125um fiber 2 5mi 4km Multi mode 7 5 dB into 50 125 nr fiber L o Single mode mode 19 19 dB into 9 125um fiber into 9 125um fiber 12 124mi 20km 2C32 LC SM MM Dual 11 dB into 62 5 125um fiber 2 5mi 4km Multi mode 7 5 dB into 50 125um fiber 1 9mi 3km 44 EOTec 2000 ControlNet Ring Communications
35. g Communication ControlNet systems using redundant channel ControlNet Bridges CNBRs can also be designed or converted to a dual redundant Self Healing Ring using the EOTec 2C32 Dual Self Healing Ring modules Each 2C32 module also has two fiber ports with a transmitter and a receiver Again each fiber port will be connected with two optical fibers or fiber segment As you can see in figure 3 4 two 2C32s are supporting Node 2 One is connected via coax to channel A while the other is connected to channel B A dual ring is merely a second ring that mirrors the first ring All hardware is the same and all coax and fiber segments are the same type and length Similar to the single ring example Node 2 is connected to Node 5 by two fiber segments 1 for channel A amp 1 for channel B in the clockwise direction Node 2 is connected to Node 7 by a two fiber segments in the counter clockwise direction Then to finish the ring Node 5 and Node 7 is connected together by two fiber segments Also shown in figure 3 4 if Node 2 Fiber 2 Port connects to Node 5 Fiber 1 Port in ring A then Node 2 Fiber 2 Port must also connect to Node 5 Fiber 1 Port in ring B Do Not connect Node 2 Fiber 2 Port to Node 5 in the ring A clockwise and Node 2 Fiber 2 Port to Node 7 in the ring B counter clockwise The break management algorithm assumes that the user has followed the Rockwell requirement of identical connections in both A and B channels CHANNEL A av
36. h of the media used between the two nodes that are furthest apart from each other in the network system Single Self healing Ring Figure 4 2 With ring networks the physical media forms a physical ring of optic fiber Data packets are transmitted in both directions around the ring As shown in figure 4 2 when Node 1 communicates with Node 2 it transmits the packet from the ring module marked D2 in both the clockwise and counter clockwise directions In this way one of the 3 fiber segments shown D3 D7 D10 can be broken but communication will still continue However one of the two paths shown in figure 4 2 will be longer and two of the four nodes will be the furthest distance apart from each other Worst case delay is calculated using only this longest delay path This is to insure that the Network Update Time NUT has been calculated on the longest possible network distance no matter where the fiber breaks In a ring since any two nodes will have two paths of communication between them both must be calculated to understand which is the longest Since Node 2 and Node 3 share a coax segment only the node furthest from the ring Node 2 needs to be calculated with the two other nodes Node 1 Node 4 Node 3 is always closer see figure 4 2 As shown in tables 4 6 and 4 7 the counter clockwise path is over twice as long as the clockwise path between nodes 1 and 2 Both paths between nodes 1 and 3 are much shorter than counter clockwi
37. he receiver is small in comparison to the specified 6 55mW upper limit so this signal must be amplified before it is converted into an analog output The amplification is appropriately stepped for each transceiver type so that it fits into the 4 20mA range As explained above the received power measurement has an accuracy of 3dB This is equivalent to 50 of the received optical power Since this is not a particularly accurate measurement each transceiver will provide a slightly different reading across the same length of fiber However SFP lasers are operated in constant power mode so they rarely exhibit any variation in transmit power This means that although they are not providing an accurate reading they do provide a consistent reading Any attenuation in the fiber will decrease this reading so the longer the fiber the lower the reading will be This reading can also be affected by any splices or connectors added between the transmit and receive diodes so once the system is set up and operational any further attenuation or decrease in this reading can be considered deterioration in the fiber segment An investigation can then occur to determine root cause of a changed reading before the segment becomes inoperable Thus loose connections or a deteriorating transmitter or receiver can be detected Even insulation nicks or erratic bends which may occur in a normal maintenance call can change the refraction of light along the fiber This type of
38. ht over 1 kilometer dB km budget or optical dynamic range of the selected optical module transceiver Compare and select Total loss of light cannot be greater than the power Table 4 4 26 EOTec 2000 ControlNet Ring Communications Manual Planning and Installation If the total power loss sum of Steps 2 amp 3 is less than the power budget of the selected optical module Step 1 then you are within the power budget If however the power loss sum of Steps 2 amp 3 is greater than the power budget then you will need to reconfigure the topology shorten cable lengths or select a ring module with a different transceiver Example This example is for a multi mode fiber connection going through 2 panel connectors 1 bulkhead and one spliced fiber cable to a mating fiber connection 5 kilometers away e Optical module power budget from Table 4 3 o 2C32 LC MM MM 11dB 1300nm Multi Mode MM o 2C32 LC SM SM 19dB 1300nm Single Mode SM e Fiber cable 62 5 125um having an attenuation of 1 5dB km 1300nm e Fiber cable 9 125um having an attenuation of 0 5dB km 1300nm e For insertion loss subtract a minimum attenuation of 1dB for each added connector splice patch panel bulkhead etc not to include the terminating connectors on each end of fiber Insertion Loss dB The attenuation lost from connectors splices patch panel bulkhead etc Insertion Loss 2 panels 1 bulkhead 1 splice x minimum connecto
39. iber deterioration Dual Channel Link Cable Easily connects communication Between optic fiber ings High Resolution LEDs simplify local diagnostics Small Form Factor Pluggable SFP Standard ControlNet BNC Easily Removed 1310nm Fiber Optic Transceivers Fora quick connection into any network for both Single Mode and Multi Mode Applications Appendix B EOTec 2000 ControlNet Self Healing Ring Product Series includes ordering information on Self Healing Ring models and Optional Accessories Your EOTec ControlNet SHR modules require no jumper configuration All ControlNet communication modules come ready to meet any ControlNet network configuration Each module comes with a Master Slave switch located on the front of each module This switch must be set so that one Master module resides in each ring See Master Slave Switch for the proper switch settings for your ControlNet ring Options and Accessories Contact your Weed sales representative to order any of these options or accessories e Fiber optic patch cables converts LC connection to your fiber cable termination e Optical Conversion convert between multi mode and single mode at fiber ports e Dual channel Link cables of various lengths See Appendix B Self Healing Ring Product Series for more information on options and accessories EOTec 2000 ControlNet Ring Communications Manual ControlNet Hardware 2 EOTec ControlNet Hardware This chapter describes how
40. ical current Thus fiber can carry data much greater distances Greater distance between repeaters means that fewer repeaters are needed between long distance nodes Less Size and Weight Fiber cables are much smaller and lighter than coax cables Table 4 2 Understanding Fiber Limitations While fiber has many benefits over coax there are limitations too Every network that uses fiber must maintain a minimum signal level for each fiber segment in order to achieve effective signal strength Attenuation of a fiber segment is effected by the quality of the termination at each connector splices bulkheads and the fiber cable itself At any time the total amount of attenuation shall not exceed the optical power budget of the optical repeater module used See Understanding Fiber Attenuation for more information on optical power budget Understanding Optical Transceivers When choosing a self healing ring module to use in your configuration a commonly asked question is What particular cable type is used with a particular module You must select a module and the corresponding cable type based on economics and the distance you want the data to travel There are two types of fiber cable single and multi mode These two cable types differ in that single mode cable allows light to travel in a single path Multi mode cable allows light to travel in multiple paths Single mode cable is generally used in longer distance applications see table 4
41. ind the root cause of the problem and resolve it quickly Diagnosing Network Failures Each EOTec 2000 ControlNet Self Healing Ring module has LED indicators to help you diagnose a communication failure when trouble occurs Figure 5 1 below illustrates all product features For a more detailed review of product features please visit Section 2 Ring Module Overview for more information There are also relay contacts that allow these fault indicators to be accessed at a remote location Understanding these indicators will help you identify a network problem and resolve it quickly Remote Link Remote Global Alarm Relay 2632 Only Alarm Relay Dual Remote Power Fiber 1 and Fiber 2 Remote Alarm Relays Alarm Relays Dual Remote Dual 15 30VDC 4 20mA Outputs Power Inputs Ring Master Slave Switch Dual Power Input Alarm LED s Fiber 1 and Fiber 2 Alarm LED s Link Alarm LED Global Alarm LED Link Active LED ControlNet Coax Dual Channel Active LED Link Cable 2C32 Only Fiber 1 and Fiber 2 Standard ControlNet TXIRX Active LED s BNC Connector Removable 1310nm SFP Fiber Optic Transceivers Figure 5 1 3 EOTec 2000 ControlNet Ring Communications Manual Troubleshootin Interrupting Fault Indicators The following troubleshooting suggestions have been provided to assist you should you have trouble with your EOTec 2000 ControlNet Modules Power Supply Indicators Solid Solid Power is good gt 15 or lt 30
42. instrument com contact us tech support service html 1 Click the link for the RETURN MATERIAL AUTHORIZATION FORM This must be filled out completely in order to obtain a Return Material Authorization Number RMA from Weed Instrument 2 The RMA must be marked on the outside of the box prior to shipping the unit to us for repair or calibration 3 You are responsible for fully decontaminating your unit prior to shipment If we receive a contaminated product we reserve the right to have it removed and destroyed by a HAZ MAT team at the owner s expense 4 Once the form is complete please send to Weed Instrument by clicking on the Submit button You will be given an RMA number within 24 hours If you need the RMAZ immediately please call after sending it and a Service Administrator will give you the number verbally 46 47 Part Number RM0900194 Revision 11 08
43. ion eese 14 Network Setup and Operation cccccceccsseeseece cece ceseeseeeseessecseeeeeeeseeeeeees 14 Supported Network Configurations cccccceccceeceseeeeeeeeeeeeeteeeteeeteeeaeeenaes 15 Single Channel Ring COMMUNICATION rannnrnnnnnnnnnrnnnnvrrnnnnrnnnnnnrenrnnnennnnsnsen 15 Dual Channel Ring Communication rrnrnnnnnnrnnnnrnrnnnnrrvrnnrrenrnnnrennnnnennnnsnsen 17 Single Channel Security ccccccssscccccssseeccesseecceseeecseeeeeseuseeessegeeesseaseesees 19 D alGC annel SOC UML tm 20 Network Configuration Tips c cccccsecccececeeeceececeeeeeeeeseeeeeseeseeessuseseeeeaeees 21 EOTec 2000 ControlNet Ring Communications Manual Table of Contents Chapter 4 Chapter 5 Chapter 6 Planning and Installation 22 Planning a NOON o Laug 22 Understanding EO Tec ControlNet Terminology ccccccsseeeeeeeeeeeeeaeeeees 22 Understanding Coax Limitations rrrnnrrnrrnnrnvrrnnnrenrnnnnrnvrnnnrennnenennnnsrsnnnnnsne 24 Understanding When to Use Repeaters cccccseeeeeseeeeeeeeeeseeeeeseeeeseeeeens 24 Understanding the Benefits of Fiber ccccccccccssseeeceeseeecsesseesceeeeessaaeees 25 Understanding Fiber Limitations rrrrrrnnrrnnnnrrnnnnrenrnnrennnnrennnnrnnnrrnnnnnrnnnnnen 25 Understanding Optical Transc
44. is the propagation delay for the entire network 121us which amounts to approximately 20 kilometers of optical fiber for the entire network Understanding this protocol limitation will help you to design your network wisely See Understanding Propagation Delay for more details e o ensure no unscheduled downtime always use two separate power sources for each 2C31 or 2C32 module in your ControlNet system e A dual redundant configuration increases network reliability by providing two alternative paths for message flow in the event of a network segment or power failure When a communication segment break occurs messages are automatically captured from an alternative communication path as shown in figure 3 7 e Using the provided diagnostic features is the only way to ensure maximum reliability of your ControlNet physical media layer e Power supply relays provide monitoring from a remote location to easily warn users immediately of any power failures e The remote Link Alarm 2C32 only provides assurance that no faulty communication connection goes unnoticed There is no such thing as an unimportant fault in a dual redundant system e Using the Fiber 1 amp 2 Remote Alarms allows users to replace or repair faulty fiber before unscheduled down time occurs e Employing the 4 20mA optical diagnostic ports to monitor optical power levels light intensity provides users with a real time early warning of any deteriorating optic fiber and o
45. it is important to understand the limitations of the coax connections While the best designed rings will contain very little coax rings can be formed as a central hub of a network with other topologies connecting into this ring Refer to the Supported Network Configurations section of Chapter 3 for more information on connecting other topologies point to point star daisy chain into a star network The total allowable length of a segment containing standard RG 6 quad shield cable depends upon the number of taps in your segment There is no minimum trunk cable section length requirement The maximum allowable total length of a segment is 1 000 meters with two taps connected Each additional tap decreases the maximum length of the segment by 16 3m The maximum number of taps allowed on a segment is 48 with a maximum segment length of 250m as shown in figure 4 1 Maximum Allowable Segment Length Example If your segment requires 16 taps 1000 the length for each segment is B orm 1000m 16 3m x 16 2 2 1000m 16 3m x 14 S sp 1000m 228 2m 771 8m 250 2 16 32 48 Humber of Taps Figure 4 1 Understanding When to Use Repeaters You need to install repeaters when your network configuration requires more than 48 taps or a longer trunk cable is needed than the ControlNet specification allows see Understand Coax Limitations ControlNet repeaters are only useful in network topologies that connect into an EOTec self healing ring
46. l Converter A communication module used to convert from multi mode to single mode fiber Patch Cord Cable used to attach a device to a patch panel Redundant A second power supply used to insure EOTec ring modules always Power Supply remain powered Ring Module See Self Healing Ring Module SC Connector Type of connectors commonly used for terminating fiber optic cables Segment A segment consists of either coax or fiber cable and connects two or more devices Self Healing Ring A communication module used to connect devices in a ring Module configuration Provides additional communication paths around bad fiber and or hardware ST Connector Type of connectors commonly used for terminating fiber optic cables ST is a registered trademark of AT amp T Tap The coax connection between any device and the ControlNet media system Contains an electrical circuit and must be used to connect all ControlNet devices to the coax trunk line Terminator coax A 75Q terminator must be installed on the 2 taps at each end of every coax segment Trunk Cable The trunk cable is the bus or central part of the ControlNet Coax media system The trunk cable can be composed of multiple sections of cable The standard cable used to construct trunk cable sections is quad shield RG 6 type Coax Table 4 1b 23 EOTec 2000 ControlNet Ring Communications Manual Planning and Installation Understanding Coax Limitations For any ControlNet network
47. ling Ring _ LL LE Figure 2 2 In a Dual Self Healing Ring there are two Master modules These can be connected to any ControlNet node but the master modules must reside together at the same ControlNet node Figure 2 3 shows a dual ring with the master modules connected to Node 1 thus all modules connected to nodes 2 and 3 are set to the Slave position Switch Settings for Dual Self Healing Ring E CHANNEL B cs Jur a CHANNEL B cd J CHANNEL K co Set to Slave Set to Master setto Slave CHAMNEL B RING Figure 2 3 EOTec 2000 ControlNet Ring Communications Manual ControlNet Hardware Wiring Guidelines for Self Healing Ring Modules Both the EOTec 2C31 amp 2C32 modules can be connected per Table 2 4 Function EE Signal Power Removable rm relays are closed on alarm Terminal Block Plugs Function supported by 2C32 Only Table 2 4 p i sd j em Input Power 2 Link Alarm G i e NENNE Sees NEEE 11121314 M 9 101112 M 1314 15 16 LIN TIN 51617 8 17 18 1920 Top View m D To assist in making wire connections to the modules the terminal block plugs are easily removed Place the tip of a screwdriver under the front of the plug and lift EOTec 2000 ControlNet Ring Communications Manual ControlNet Hardware Fiber Optic Cable Lengths The quality of the fiber cable determines the m
48. modules Coax Segment Trunk cable sections connecting nodes via taps with a terminator at each end Dual Channel Link A communication port required with the EOTec 2C32 and dual self Port healing ring communications Connects the ring module on channel A to the ring module on channel B Allows data to pass between channel A and B Dual Channel Link Communication cable used to connect two 2C32s together at the Cable Dual Channel Link Port Looks similar to Cat5 Ethernet cable but is not Fiber Conversion Optic fiber cable used to connect two different connector types e g Cable LC to SC connectors Also see Patch Cord Patch Panel Cable Fiber Segment A length of fiber optic cable connecting two optical modules or two coax segments Table 4 1a 22 EOTec 2000 ControlNet Ring Communications Manual Planning and Installation Term Description LC Connector Miniature type of connectors commonly used for terminating fiber optic cables Link A link is another word for cable connection Link Cable See Dual Channel Link Cable Link Port See Dual Channel Link Port Network A network is the collection of nodes connected together by segments coax or fiber Node Any physical device connecting to the ControlNet media system which requires a network address in order to function on the network A network may contain up to a maximum of 99 nodes This node address must be in the range of 1 99 and be unique to that network Optica
49. nal uses of the Weed Self Healing Ring 2C31 Single Ring amp 2C32 Dual Ring Modules is to split the module in half as shown in figure 2 1 All data communication features are located on the bottom and all power and diagnostic features are located on the top with a Master Slave switch located front and center ConmiNet Power amp Diagnostic Features Data Communication Features Figure 2 1 Additional understanding can be learned by further dissecting the module into its functional parts For more detailed information refer to table 2 1a b amp c below Self Healing Ring Module Features Power 1 2 Power Inputs There are two 15 30Vdc inputs on the front of Remote Alarms each module to meet redundant power needs Power Alarms Each module comes equipped with local and Power 1 2 Inputs Bs remote alarms to assist in diagnosing power faults When power is gt 15 Vdc and lt 30Vde a power fault will occur Both power inputs have an LED alarm on the front of each module to indicate power status Power 1 Alarm gt EUM Power Both power inputs have remote alarms which can be Power 2 Alarm gt accessed at the top of each module Dry contact relays are closed on alarm For additional wiring information consult Wiring Guidelines For alarm information consult Troubleshooting Table 2 1a EOTec 2000 ControlNet Ring Communications Manual ControlNet Hardware Dual Channel Link Active LED gt Dual Chan
50. nel Link Port gt Dual Channel Link Remote Alarm gt Master Slave Switch gt Link Alarm gt Global Alarm gt Fiber 1 Active LEDs gt Fiber 2 Active LEDs gt Fiber 1 Port gt Fiber 2 Port gt Fiber 1 2 Remote Alarms gt Fiber 1 2 4 20mA Outputs gt Fiber 1 Alarm gt Fiber 2 Alarm gt Self Healing Ring Module Features ControlNet Dual Channel Link Port 2032 Only The 2C32 supports dual channel ControlNet Operations Meaning that for each ControlNet node two ring modules are required 1 for A 1 for B These two ring modules are linked together and communicate over a dual channel link cable see figure 1 2 Dual Channel Link Active LED Provides status information on dual channel communications For alarm information consult Troubleshooting Global Remote Alarm Master Slave Switch One module only 1 must be set to master for each ring in the network configuration Thus for dual rings there will be two Masters 1 for ring A 1 for ring B Link Alarm The dual channel link port has two alarms An LED for local status and a dry contact relay to provide status to a remote location Global Alarm The global alarm is passed between all self healing ring modules so only one module needs to be connected to a remote location to indicate a fault in the ring s For additional wiring information consult Wiring Guidelines For alarm information consult Troubleshooting Fiber 1 amp
51. o communicate on the ControlNet Physical Media Layer You will notice that no Weed Instrument modules will be listed so the next best option will be to use equipment listed that has similar delay times You can select the appropriate Rockwell devices from table 4 14 below that equals the Weed Instrument device delay time in table 4 15 This means that for every EOTec Self Healing Ring module 2C31 or 2C32 enter one 1786 RPA and one 1786 RPFRL When reviewing figure 4 2 and 4 3 note that number of devices to use is 3 of each Enter the number of devices used to connect the furthest two nodes in your system For a ring this would include all ring modules as each node requires at least one ring module For dual rings both rings have the same number of ring modules so whichever path is used the module delay time is the same Count only one set of modules as if it were a single ring Weed Instrument Rockwell Automation Table 4 14 Table 4 15 RSNetworx is a registered trademark of Rockwell Automation 34 EOTec 2000 ControlNet Ring Communications Manual Planning and Installation Installing a Network Weed Instrument sells the necessary equipment to install a communication connection on the physical media layer but we do not offer installation services Many customers retain qualified professionals to plan install and maintain their ControlNet systems If your company does not retain such a staff we recommend you contract an ins
52. of cable 2 Possible broken cable 3 Possible bad module on either end of cable 39 EOTec 2000 ControlNet Ring Communications Manual Troubleshootin Remote LED Relay Indicators Function LED tio Power Solid Green Relay open Module is receiving good power gt 15 or lt 30Vdc IN 17IN2 Relay closed Module is receiving bad power 15 or gt 30Vdc Relays ed See Power Supply Indicators for detailed troubleshooting information Solid Green Relay open Module is receiving good data Relay closed Module is receiving data with errors or no light is received from transmitter See Optical Interface Indicators for detailed troubleshooting information Link Relay Solid Green Relay open Module is receiving good data and status 2C32 Only Relay closed Module is receiving bad data and status See Link Active Indicator for detailed troubleshooting information oolid Green Relay open No faults within the ring s Global Relay A fault has occurred in the ring s Red Global with no other red LEDs Good module Red Global with red power LED Power alarm See Power Supply Indicators for detailed troubleshooting information Red Global with red fiber LED Fiber alarm See the Optical Interface Indicators for detailed troubleshooting information Red Global with red Link LED Link alarm See Link Active Indicator for detailed troubleshooting information Fiber 1 Fiber 2 Relays 40 EOTe
53. r attenuation 4 x 1dB 4dB Cable Loss dB The attenuation lost from the cable length required to connect the link Cable Loss for MM 5 kilometers x 1 5dB typical attenuation for 62 5 125um 1300nm 7 5dB 5 kilometers x 0 5dB typical attenuation for 9 125um 1300nm 2 5dB Cable Loss for SM Total Attenuation dB The total attenuation lost from both inserted devices and cable length Total attenuation cable loss insertion loss Total Loss MM 7 5dB 4dB 62 5 125um 1300nm 11 5dB 1300nm required power budget 2 5dB 4dB 9 125um 1300nm 6 5dB 1300nm required power budget Total Loss SM The total attenuation accumulated over this 5 kilometer segment is 11 5dB so as shown in table 4 3 the 2C32 LC MM MM model using 62 5 125um fiber is under budget 11dB for this application and should not be used However this application is well within the budget of the 2C32 LC SM SM model using 9 125um fiber 19dB so it is a good choice to use in this application Also if single mode fiber is preferred then the 2C32 LC SM SM module is the obvious choice to make 2f EOTec 2000 ControlNet Ring Communications Manual Planning and Installation Understanding Propagation Delay The ControlNet Maximum Propagation Delay specification refers to the worst case signal delay between any two nodes on a network You will need to figure out the worst case scenario based on media distances and the number of EOTec modules which the d
54. r connections 21 EOTec 2000 ControlNet Ring Communications Manual Planning and Installation 4 Planning and Installation This section discusses the limitations of ControlNet and explains how to plan and install your network and provide advice and application tips to avoid common pitfalls Planning a Network The ControlNet Shelf Healing Ring system gives you the flexibility to design a communication ring network for your particular application To take full advantage of this flexibility you should spend sufficient time planning how to install your network before assembling any of the hardware Create a project plan and checklists to help you determine the components needed for your application e Determine how many nodes taps will be in each coax segment e Determine the length of the coax segments and the need for electrical repeaters Determine the length of the fiber segments Decide the type of fiber cable and connections to use Determine how many fiber connectors you will need Calculate the maximum allowable segment length For dual ring determine a separate fiber path for channel B ring Understanding EOTec ControlNet Terminology It is important when planning and installing a ControlNet network to understand the proper terminology used Below in tables 4 1a 4 1b is a list of commonly used terms Term Description BNC Connector Type of connectors used for coax electrical connections Used on all EOTec 2C31 and 2C32
55. rror Link Alarm Link Active Data Status Error Indicates 2C32 Dual Self Healing Ring feature only 12 EOTec 2000 ControlNet Ring Communications Manual ControlNet Hardware 4 20mA Fault Prediction Ever increasing up time requirements in networking applications have led to looking at physical media layer components to aid in improving system availability This factor has led the industry to employing SFP Optical Transceivers with DMI Diagnostics The Diagnostic Monitoring Interface DMI defined in document SFF 8472 adds parametric monitoring to SFP Small Form factor Pluggable The primary purpose of SFF 8472 is to aid in predicting transceiver lifetime isolating system failures and verifying component compliance Predictive failure capabilities help a user identify potential link problems before system performance is impacted One of the key elements of SFF 8472 is a real time sensor for received optical power which is decoded as a 16 bit unsigned integer with EEPROM contents ranging from OmW to 6 55mW The decoded number is in units of 0 1 uW per bit with an accuracy defined as 3dB This specification was developed to be used with all SFP devices and has an upper limit that is far beyond transceivers used in the ControlNet environment The transceivers used in the EOTec Self Healing Ring modules each have a minimum output power of 10uW for Multi mode and 31uW for Single mode This 16 bit digital reading provided by t
56. s will result in the fourth stage a Global Alarm relay The Global Alarm is unique in that it is communicated between all Self Healing Ring modules When a global alarm is set all modules in the ring s respond at the same time This provides the user with one signal that can be taken to a control point and alert maintenance staff that a failure has occurred in the network This also allows the fault to be immediately corrected thus preventing any unscheduled downtime Global Fault Indicators Global Alarm relay Figure 2 4 See the next section for a complete list of local and remote alarms indicators For troubleshooting tips please refer to section 5 for assistance in diagnosing network failures 11 EOTec 2000 ControlNet Ring Communications Manual ControlNet Hardware Local and Remote Alarms Local Alarms LED Indicators ContralNet Coa Fiber Daa 3 Tem CUNT metet ena Ss uid Fora ff x Fiber Alarm 1 27 Ho Fiber Break Solid Green Fiber Break solid Red Link Alarm Ho Link Break Solid Green Link Break mold Red Global Alarm Ho alarm condition in rings Solid Green Alarm condition in rings sold Red Remote Alarms Relay Contacts en Power Incl Pore Rd 2 2 13va on SV Rer cese Fiber Alarm 1 7 rrr Link Alarm Global Alarm Faults Faults that cause a Global Alarm Global Alarm Power Intl 2 LED Red Fiber Alarm 1 2 Relay closed Fiber R e
57. se path of nodes 1 and 2 see tables 4 8 and 4 9 However as you see in table 4 10 the clockwise path between nodes 2 and 4 is the short in the ring and therefore the counter clockwise is the longest path so the figures in table 4 11 are to be used to calculate the worst case propagation delay While nodes 1 through 4 are shown using a ControlLogix 1756 chassis they are interchangeable with any ControlNet controller using BNC connectors ControlLogix is a registered trademark of Rockwell Automation 29 EOTec 2000 ControlNet Ring Communications Manual Planning and Installation Node 1 to Node 2 Clockwise Delay Description Total us 6m coax x 4 17ns 0 0250 3556m fiber x 5 01ns 17 8156 Delay Description Total Ms 6m coax x 4 17ns 0 0250 835m coax x 4 17ns 3 4820 D7 2534m fiber x 5 01ns 12 6953 6m coax x 4 17ns 0 0250 835m coax x 4 17ns 3 4820 Total Propagation Delay 23 3476 Table 4 6 IIO de ECELER DIHET 54 3875 Table 4 7 Node 1 to Node 4 Clockwise Node 1 to Node 4 Counter Clockwise Delay Description Total ps 6m coax x 4 17ns 0 0250 1x1us 1 0000 IK doge 37 2102 6m coax x 4 17ns 0 0250 Table 4 9 Delay Description Total us 6m coax x 4 17ns 0 0250 7018m fiber x 5 01ns 35 1602 1x Tus 1 0000 6m coax x 4 17ns 0 0250 Total Propagation Delay Table 4 8 Node 2 to Node 4 Clockwise Delay Description Total ps 835m
58. t that each Dual Self Healing ring module remains powered to insure that this skew time is met and each node stays on line Weed Instrument highly recommends the use of redundant power supplies to insure a constant power source at each Dual Self Healing ring module Used in conjunction with the fault indication system that comes with every Self Healing Ring module any power supply fault fiber fault or dual channel link fault can be identified and quickly remedied For more information on the Self Healing Ring module alarm system refer to the Fault Indicators sections of this manual CHANNEL A RING segment B1 3 CHANNEL B RING Figure 3 7 20 EOTec 2000 ControlNet Ring Communications Manual Network Configurations Network Configuration Tips The following applications tips are provided to help plan and install ControlNet networks e Plan the network wiring to minimize the number of connections and the length of the network cables Simple and short is always better When planning your network using EOTec 2C31 Self Healing and EOTec 2C32 Dual Self Healing Ring modules refer to the Planning a Network section of this manual e While ControlNet supports up to 99 nodes ControlNet has a limitation of 48 nodes per coax segment Coax can communicate up to 1000 meters but for each tap added 16 3 meters must be subtracted from this overall segment length See Understanding Coax Limitations for more details e Another limitation
59. tallation specialist The specialist you choose should install your cable and terminate it following the supplier s installation instructions However a specialist is not necessary to connect your EOTec 2000 ControlNet Self Healing Ring modules Anyone with installation experience that has read and understands this manual can easily connect this equipment using the pre installed cables Whether you are installing or maintaining a ControlNet system keep the following application tips in mind Coax Application Tips The following applications tips are provided to help understand coax electrical networks e Taps contain passive electronics and must be used for the network to function properly Other methods of connecting to a Coax trunk cable will result in reflected energy that will disrupt communications e A 5Q terminator must be installed on the tap at each end of a segment e You should always calculate the three dimensional routing path distance when determining cable lengths Consider vertical dimensions as well as horizontal dimensions e When you install repeaters in series use your ControlNet Network management Software RSNetWorx to verify that the system is an allowable configuration e Donotlet any metallic surfaces on the BNC connectors plugs or optional accessories touch grounded metallic surfaces This contact could cause noise on the network e A disconnected drop cable can cause noise on the network Because of
60. this it is recommend having only one unconnected drop cable per segment for maintenance purposes Be sure to keep the dust cap on any unconnected drop cable 35 EOTec 2000 ControlNet Ring Communications Manual Planning and Installation Fiber Application Tips The following applications tips are provided to help understand fiber optic networks e Avoid lengthening your cable by joining sections with connectors Connectors can cause considerable attenuation and limit the maximum length of your system Be sure to measure the attenuation of all cable sections from both ends after the cable is installed e t is recommended that all fiber segments be specified installed verified and certified by a fiber optic specialist e Use high quality connectors and fiber cable to stretch your power budget Higher quality connectors and cable can withstand a broader range of temperatures and distances Redundant Network Tips With redundant media each node sends signals on two separate paths channel A and channel B The receiving node compares the quality of the two signals and accepts the better signal to permit use of the best signal This also provides a backup communication should one path fail Observe these guidelines when planning a redundant media system e Route the cables for the two channels channel A and channel B differently to reduce the chance of both channels being damaged at the same time e Each ControlNet node in a re
61. tions often demand rugged robust equipment that can provide high reliability in settings far removed from a comfortable climate controlled office environment Devices attached to a network normally cannot tell what is happening elsewhere on the system As a result the responsibility for monitoring and reacting to faults in the network must fall on the ControlNet communication equipment that connects these devices Self Healing Ring modules are well suited to react to these faults by rerouting essential data to insure no unscheduled downtime In this environment real time alarms are a vital feature to inform system administrators and operators when a problem occurs and prevent loss of any system data Introducing the EOTec 2000 Self Healing Ring Modules The EOTec 2000 Self Healing Ring Modules are designed using patent pending technology to give reliable operation in harsh industrial environments As shown in figure 1 1 single ring and 1 2 dual ring Weed Instrument provides various solutions for creating redundant communications topologies Create the ControlNet communication ring that meets your needs for single channel redundancy or for dual redundant channel configurations You can also combine ring topologies with existing point to point daisy chain and star topologies into one network Both Weed Self Healing Ring modules support multi mode fiber for short to medium range distances and single mode fiber for greater distances between
62. um 220Vdc 250 Vac 1A Switching Current I Carrying Current Loop Resistance 1000Q 24Vdc Adjust 4500 Volt Change 471 361 Operating Hours MIL HDBK 217F 25 C Operating temperature range 0 to 60 C Storage temperature range 40 to 85 C 5 to 95 RH EMC immunity EN 61326 1 1998 LVD 73 23 EEC RoHS Directive 2002 95 EC WEEE Directive 20021 961 EC Humidity non condensing Hazardous locations FM Approved Class I Division 2 Groups A B C amp D T4 CSA C22 2 No 142 and C22 2 No 213 Optical Wavelength 1310nm Communication Data Range Up to 155 Mbps Optical Port Connection Duplex LC connector other connectors options available see datasheet for accessories See Optical Transceiver Specification below UL 94V 0 See Dimensions section in this manual Optical Dynamic Range Packaging polyamide Dimensions ON 0x 42 EOTec 2000 ControlNet Ring Communications Manual Technical Specifications Dimensions Triple Wide Modules Module Type Model Numbers SHR DSHR 2C31 2C32 3 9 99 LI 4 5 114 m Inch mm 43 EOTec 2000 ControlNet Ring Communications Manual Product Series B Self Healing Ring Product Series The following table will help in selecting the appropriate EOTec 2000 ControlNet Self Healing Ring module for your specific needs Choose either 2C31 single ring or 2C32 dual ring modules for the type of ring that meets your system configuration needs Th
63. vision 2 Power input and output I O wiring must be in accordance with Class I Division 2 wiring methods and in accordance with the authority having jurisdiction Do not connect disconnect equipment unless area is known to be non hazardous and power is switched off Certified components for use in a suitable enclosure The maximum ambient temperature is 60 C Installations shall comply with the relevant requirements of the National Electrical Code ANSI NFPA 70 the Canadian Electrical Code CEC CAN CSA C22 1 and any local electrical codes where applicable The Fiber Optic portion of the ControlNet Specification is somewhat limited in scope and Weed Instrument Fiber Optic Products have a more varied set of specifications based on field requirements and proven applications The fiber portion of this series is not designed to be compatible with the fiber portion of the ControlNet Specification and therefore interconnection by fiber to any other manufacturer s products is neither expressed nor implied Lightning Danger Do not work on equipment during periods of lightning activity EOTec 2000 ControlNet Ring Communications Manual Table of Contents Table of Contents Chapter IntrFoducliOD ss aai 1 Introducing the EOTec 2000 Self Healing Ring Modules 1 EOTec 2C31 ControlNet Self Healing Ring SHR ccccceccceeeeseeeseeeeaees 2 EOTec 2C32 ControlNet Dual Self Healing Ring DSHR
64. vnrnnnnrnrnnnnrnnrnnnrennnnnrnnnnnnsnnnnnnee 40 Berault SEUINGS vare 41 Default Seting vasre 41 EOTec 2000 ControlNet Ring Communications Manual Table of Contents Appendix A Technical Specifications eere 42 General Specifications rrrarerarnrarnnernanerarenanevaneranerannnnennnenunenanenunenunenunenee 42 DIMENSIONS ae 43 Appendix B Self Healing Ring Product Series 44 Optical Transceiver Specifications Lava ha eR era Er Re DvLE bad Orel aa 44 Available Dual Channel Cables ccccceccseecseeteeceeeseeeseeennetseesaeeeeeeeeeees 44 Available Optical Converters rrrrrrrrrrnrrnnrrrnrrrareranerernrennnernnennanenunenunenunenenen 44 Accessories Patch Cord Conversion Cables eeeseuess 45 Appendix C Service Information eee eee rennen enne nn 46 Technical Support and SENG va sists hr kia ted eeu a xeu uuu idt Ped c UN Bua 46 EOTec 2000 ControlNet Ring Communications Manual Introduction 1 Introduction This manual describes the uses for the EOTec 2C31 and ControlNet Self Healing Ring SHR and 2C32 Dual Self Healing Ring DSHR communication modules specially designed for connecting ControlNet devices on the Physical Media Layer in industrial field applications ControlNet is swiftly being adopted by the industrial automation and control industry Industrial applica
65. y is a network requirement the best cable configuration is illustrated here in figure 3 5 This solution uses very short coax cable connections between the CBNR and the 2C32s so the fiber cables are your only consideration when planning for two redundant network paths ControlNet Channel Ring Redundancy Figure 3 5 As with the 2C31 a ring can only have one and only one Master or ring manager Yet since there are two rings when using a dual channel system there will be two masters one in each ring or support each channel Also it is very important to understand that the master modules must reside together at the same ControlNet node All other 2C32s in both rings must be set to the slave position Visit the Master Slave Switch section for more information on proper switch settings for a dual redundant self healing ring 18 EOTec 2000 ControlNet Ring Communications Manual Network Configurations Single Channel Security Single channel redundancy is very effective for ControlNet systems where single channel ControlNet Bridges CNBs are used A Self Healing ring using the EOTec 2C31 can withstand one fiber break as shown figure 3 6 Although fiber segment 2 3 is broken Node 3 can still communicate with the other two nodes over fiber segment 1 3 A chain of communication still remains between all three nodes This causes no interruption of service and can be repaired and put back into service for future unexpected failures

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