Table of Contents
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Installation Instructions
ControlNet Fiber-optic Ring Repeater
Modules
Catalog Numbers 1786-RPFRL/B, 1786-RPFRXL/B
Topic
About the Module
The ControlNet Fiber-optic Ring Repeater module supports fiber media
redundancy by using a ring topology. The fiber-optic technology permits long
(1786-RPFRL/B module) or very long (1786-RPFRXL/B module)
transmission ranges. Both modules provide optimum protection against EMI
effects along the transmission link and at the repeaters themselves. The fiber link
provides ground isolation between nodes and is less susceptible to noisy
environments than traditional copper media.
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Table of Contents
Related Manuals for Allen-Bradley ControlNet 1786-RPFRL/B
Summary of Contents for Allen-Bradley ControlNet 1786-RPFRL/B
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Page 1: Table Of Contents
Installation Instructions ControlNet Fiber-optic Ring Repeater Modules Catalog Numbers 1786-RPFRL/B, 1786-RPFRXL/B Topic Page Important User Information Environment and Enclosure North American Hazardous Location Approval Fiber-optic Safety Statements About Fiber Topology Mount the Fiber Modules Choose Fiber-optic Cable for the Module Connect the Cable Between the Repeater Modules Interpret the Status Indicators Specifications... -
Page 2: Important User Information
2 ControlNet Fiber-optic Ring Repeater Modules Important User Information Solid-state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls (Publication SGI-1.1 available from your local Rockwell Automation sales office or online at http://www.rockwellautomation.com/literature/) describes some important differences between solid-state equipment and hard-wired electromechanical devices. -
Page 3: Environment And Enclosure
ControlNet Fiber-optic Ring Repeater Modules 3 Environment and Enclosure ATTENTION: This equipment is intended for use in a Pollution Degree 2 industrial environment, in overvoltage Category II applications (as defined in IEC 60664-1), at altitudes up to 2000 m (6562 ft) without derating. This equipment is considered Group 1, Class A industrial equipment according to IEC/CISPR 11. -
Page 4: North American Hazardous Location Approval
4 ControlNet Fiber-optic Ring Repeater Modules North American Hazardous Location Approval The following information applies Informations sur l’utilisation de cet when operating this equipment in équipement en environnements hazardous locations. dangereux. Products marked "CL I, DIV 2, GP A, B, C, D" are Les produits marqués "CL I, DIV 2, GP A, B, C, D"... -
Page 5: Fiber-Optic Safety Statements
ControlNet Fiber-optic Ring Repeater Modules 5 Prevent Electrostatic Discharge ATTENTION: This equipment is sensitive to electrostatic discharge, which can cause internal damage and affect normal operation. Follow these guidelines when you handle this equipment: • Touch a grounded object to discharge potential static. •... - Page 6 6 ControlNet Fiber-optic Ring Repeater Modules WARNING: Hazardous areas require the use of specially designed products. Only when the product is marked accordingly (see the product ID label) it may be used in Class I Division 2 hazardous environments. Rockwell Automation provides similar products that are intrinsically safe and are suitable for more hazardous environments.
- Page 7 ControlNet Fiber-optic Ring Repeater Modules 7 The 1786-RPFRL/B and 1786-RPFRXL/M modules provide the following: • Two fiber channels • Activity status indicators for each fiber channel • Relay contact connector for communication and system status Figure 1- Module Components Relay Contact Connector (not shown) Indicators Protective Caps...
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Page 8: About Fiber Topology
8 ControlNet Fiber-optic Ring Repeater Modules About Fiber Topology The 1786-RPFRL/B or 1786-RPFRXL/B long or extra-long modules can be used to create a redundant optical link between segments. When used in a ring topology, a single media failure between any two repeater modules in a ring will not impact the communication link. - Page 9 ControlNet Fiber-optic Ring Repeater Modules 9 The maximum number of repeater modules (in any combination) you can use in a configuration is dependent on the current draw of each repeater module. Total current draw supplied by the 1786-RPA/B repeater adapter cannot exceed 1.6 A @ 5V DC.
- Page 10 10 ControlNet Fiber-optic Ring Repeater Modules Fiber-optic Ring Topology Use this configuration for long distances. A fiber-optic ring may contain as many as 20 member modules. These member modules (four shown in Figure include the following: • 1786-RPA/B repeater adapter module •...
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Page 11: Mount The Fiber Modules
ControlNet Fiber-optic Ring Repeater Modules 11 ATTENTION: Be certain that the adapter and repeater modules are secured together with DIN rail anchors. Failure to do so may result in the loss of communication and/or cause damage to the modules. The total number of modules that can be attached to the 1786-RPA/B repeater adapter cannot exceed four or the total power consumption of the modules cannot exceed 1.6 A @ 5V DC, whichever comes first. - Page 12 12 ControlNet Fiber-optic Ring Repeater Modules Figure 3 - Mounting Dimensions (4.20) (2.76) (4.0) (3.6) (4.25) Dimensions are in mm (in.). 31532-M Horizontal mounting requirements are determined by using the following formula: RPA/B width + (4.2 inches x number of RPFR(X)L + 2 inches For more information, see the ControlNet Modular Repeater Adapter Installation Instructions, publication 1786-IN013.
- Page 13 ControlNet Fiber-optic Ring Repeater Modules 13 2. Hook the lip on the rear of the module onto the top of the DIN rail, and rotate the module onto the rail. 42542 3. Press the module onto the DIN rail until flush. The locking tab should snap into position and lock the module to the DIN rail.
- Page 14 14 ControlNet Fiber-optic Ring Repeater Modules WARNING: Removal and insertion under power (RIUP) is not supported. These modules must be powered down while connecting and disconnecting them from any interconnected modules. If you insert or remove the module while backplane power is on, an electrical arc can occur.
- Page 15 ControlNet Fiber-optic Ring Repeater Modules 15 Install the Ferrites This procedure explains how to set up a ferrite to reduce EMI interference. The ferrite will be connected to the module’s relay contact connector. If you are not planning to use the relay contact connector on the module for system status, you do not need to install the ferrites.
- Page 16 16 ControlNet Fiber-optic Ring Repeater Modules Install the Ferrite at the Power Supply Do these steps to attach the ferrite to the power supply of the 1786-RPA/B module. 1. Use the key supplied with the ferrite to open it. Be careful not to damage the wires. 2.
- Page 17 ControlNet Fiber-optic Ring Repeater Modules 17 8. Reinsert the power supply connector into the 1786-RPA/B module. Install the Ferrite at the Relay Contact Connector 1. Use the key to open the remaining ferrite. 2. Form a loop with both wires (+ and -) approximately 100 mm (4.0 in.) away from the relay contact connector of the 1786-RPFRL/B or 1786-RPFRXL/B module.
- Page 18 18 ControlNet Fiber-optic Ring Repeater Modules 9. Connect the fiber cable as described on page 10. If you plan not to use a channel, attach a small section of fiber cable (or a Simplex fiber loop) between the Receive port (RX) and the Transmit Port (TX) of any unused fiber port to create a jumper.
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Page 19: Choose Fiber-Optic Cable For The Module
ControlNet Fiber-optic Ring Repeater Modules 19 ATTENTION: Do not discard the end cap. Use this end cap to cover the exposed interconnections on the last repeater module on the DIN rail. Failure to do so could result in equipment damage or injury from electric shock. - Page 20 20 ControlNet Fiber-optic Ring Repeater Modules The sample formulas in the example illustrate how you can determine the total loss for fiber-optic cables in your system configuration. The values we use in the formulas are typical: yours may vary, depending on your application. Determining total loss for fiber-optic cables EXAMPLE The total loss of the fiber-optic cable between two modules must...
- Page 21 ControlNet Fiber-optic Ring Repeater Modules 21 Determine Maximum Network Length The quality of the fiber cable determines the maximum distance between modules in a networked system. The delay in the system (described in the following table) determines the maximum length you can achieve with your network.
- Page 22 22 ControlNet Fiber-optic Ring Repeater Modules Figure 4 -Determine Worst-case Delay Node 1 1786-RPFR(X)L 1786-RPA 1794-ACNR15 Tx Rx Node 2 Node 3 1786-RPA 1786-RPFR(X)L 1786-RPFR(X)L 1794-ACNR15 1786-RPA 1786-RPFR(X)L 1786-RPA 1794-ACNR15 Node 4 31237-M Segment Length 200 m 2 km 10 m 1 km 20 m 5 km...
- Page 23 ControlNet Fiber-optic Ring Repeater Modules 23 Determining worst-case delay EXAMPLE To determine the worst-case delay in a ring topology, first disregard the shortest fiber segment in the system. Figure 4 page 22, the shortest segment is segment H, with the 200 m fiber. Remove segment H. You will see that the worst-case delay is now between nodes 1 and 2.
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Page 24: Connect The Cable Between The Repeater Modules
24 ControlNet Fiber-optic Ring Repeater Modules Set up the Network SMAX Parameter in RSNetWorx Software You must set up the SMAX parameter in RSNetWorx for ControlNet software to use with the 1786-RPFRL/B or 1786-RPFRXL/B module. The SMAX parameter sets the maximum scheduled node address on a ControlNet network. Refer to the documentation supplied with the RSNetWorx for ControlNet software. - Page 25 ControlNet Fiber-optic Ring Repeater Modules 25 Terminate the Cable Termination is the process of attaching connectors to the ends of fiber cable. Follow these general instructions when terminating fiber cable. ATTENTION: Safety glasses are required to protect your eyes when you handle chemicals and cut fiber. Pieces of glass fiber are very sharp and can easily damage the cornea of your eye.
- Page 26 26 ControlNet Fiber-optic Ring Repeater Modules Connect the Cable This section describes how to connect cables by using the tracer on the cable to identify and follow the cable throughout your system. A tracer is one of the two wires on the duplex cable that is one of the following: •...
- Page 27 ControlNet Fiber-optic Ring Repeater Modules 27 2. Connect the receive port (RX) and transmit port (TX) at the starting module. 3. Do the following to attach the cable connector to the module connector. 42550 a. Align the key of the cable connector with the slot in the module connector, and insert the connector into the RX port.
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Page 28: Interpret The Status Indicators
28 ControlNet Fiber-optic Ring Repeater Modules Interpret the Status Indicators Fiber repeaters receive status information from the repeater adapters. Because of this, you should use the fiber repeater status indicators in conjunction with the 1786-RPA/B status indicators to diagnose an anomaly. For status indicators for this module 1786-RPA/B Table 2... - Page 29 ControlNet Fiber-optic Ring Repeater Modules 29 Table 2 -1786-RPA/B Repeater Adapter Module Status Indicators If repeater adapter This means You should indicator is Alternating red/green The repeater adapter is Do nothing. The repeater adapter being powered or reset. is operating properly. Solid red A jabber condition has Check the network and...
- Page 30 30 ControlNet Fiber-optic Ring Repeater Modules 1786-RPFRL/B or 1786-RPRFRXL/B Status Indicators Channel 1 Status Indicator Channel 2 Status Indicator Table 3 - Fiber Repeater Module Status Indicators If the fiber repeater This means You should module indicator is Fiber repeater module is not Connect the repeater to the connected to the power power supply.
- Page 31 ControlNet Fiber-optic Ring Repeater Modules 31 Table 3 - Fiber Repeater Module Status Indicators If the fiber repeater This means You should module indicator is Flashing red/off Module is powered, but not Do nothing. The fiber ready for operation. This repeater module is state should also occur operating properly.
- Page 32 32 ControlNet Fiber-optic Ring Repeater Modules 1786-RPFRL/B or 1786-RPFRXL/B Relay Contact Connector The fiber repeater module contains a single electromechanical relay for communication and system status. Relay Contact Connector 31531-M Table 4 -Relay Contact Connector Diagnostics Then • No receive data is present at one or both The relay contact is open.
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Page 33: Specifications
ControlNet Fiber-optic Ring Repeater Modules 33 Specifications Technical Specifications - 1786-RPFRL/B, 1786-RPFRXL/B Attribute 1786-RPFRL/B, 1786-RPFRXL/B All supply voltages or voltage ranges Input: 570 mA @ 5V DC, max Relay: 900 mA @ 30V DC, max resistive Backplane power requirements 2.8 W (3.02 W, max) Communication rate 5 Mbps Mounting orientation... - Page 34 34 ControlNet Fiber-optic Ring Repeater Modules Environmental Specifications - 1786-RPFRL/B, 1786-RPFRXL/B Attribute 1786-RPFRL/B, 1786-RPFRXL/B Temperature, operating 0…60 °C (32…140 °F) IEC 60068-2-1 (Test Ad, Operating Cold), IEC 60068-2-2 (Test Bd, Operating Dry Heat), IEC 60068-2-14 (Test Nb, Operating Thermal Shock) Temperature, surrounding air, max 60 °C (140 °F) Temperature, nonoperating...
- Page 35 ControlNet Fiber-optic Ring Repeater Modules 35 Environmental Specifications - 1786-RPFRL/B, 1786-RPFRXL/B Attribute 1786-RPFRL/B, 1786-RPFRXL/B Radiated RF immunity 10V/m with 1 kHz sine-wave 80% AM from 80…2000 MHz 10V/m with 200 Hz 50% Pulse 100% AM at IEC 61000-4-3 900 and 1890 MHz 1V/m with 1 kHz sine-wave 80% AM from 2000…2700 MHz EFT/B immunity...
- Page 36 36 ControlNet Fiber-optic Ring Repeater Modules Certifications - 1786-RPFRL/B, 1786-RPFRXL/B Certification 1786-RPFRL/B, 1786-RPFRXL/B c-UL-us UL Listed for Class I, Division 2 Group A,B,C,D Hazardous Locations, certified for U.S. and Canada. See UL File E194810. European Union 2004/108/EC EMC Directive, compliant with: •...
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Page 37: Additional Resources
ControlNet Fiber-optic Ring Repeater Modules 37 Additional Resources These documents contain additional information concerning related Rockwell Automation products. Resource Description ControlNet Coax Taps Installation Document contains procedures and Instructions, publication 1786-IN007 specifications for the installation of ControlNet coaxial taps. ControlNet Coax Media Planning and Document describes the components and Installation Guide, publication CNET-IN002... - Page 38 38 ControlNet Fiber-optic Ring Repeater Modules Notes: Rockwell Automation Publication 1786-IN003D-EN-P - April 2011...
- Page 39 ControlNet Fiber-optic Ring Repeater Modules 39 Notes: Rockwell Automation Publication 1786-IN003D-EN-P - April 2011...
- Page 40 RA-DU002, available at http://www.rockwellautomation.com/literature/. Allen-Bradley, Rockwell Software, Rockwell Automation, RSNetWorx for ControlNet, RSNetWorx, and TechConnect are trademarks of Rockwell Automation, Inc. Trademarks not belonging to Rockwell Automation are property of their respective companies.