Modicon Remote I/O Cable System Planning and Installation Guide 35014629 00 890 USE 101 00 eng Version 3.0 www.telemecanique.com This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
Table of Contents Safety Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 About the Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Chapter 1 Remote I/O Networks—A Communications Overview . . . . . . 11 At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RIO Network Communications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RG-11 Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 Semirigid Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 Selecting Fiber Optic Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Hardware Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 Tap Specifications . . . . . . . . . . . . . .
Appendices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 At a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141 Appendix A RIO Cable Material Suppliers. . . . . . . . . . . . . . . . . . . . . . . . . . 143 RIO Cable Material Suppliers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 143 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
Safety Information § Important Information NOTICE Read these instructions carefully, and look at the equipment to become familiar with the device before trying to install, operate, or maintain it. The following special messages may appear throughout this documentation or on the equipment to warn of potential hazards or to call attention to information that clarifies or simplifies a procedure.
Safety Information CAUTION CAUTION indicates a potentially hazardous situation, which, if not avoided, can result in injury or equipment damage. PLEASE NOTE Electrical equipment should be installed, operated, serviced, and maintained only by qualified personnel. No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this material. © 2007 Schneider Electric. All Rights Reserved. 8 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co.
About the Book At a Glance Document Scope This manual is intended for the design engineer, cable system installer and network manager involved with a Modicon Remote I/O (RIO) network. The manual describes: z z z z design, installation, test, and maintenance procedures for the RIO network required media hardware—e.g.
About the Book 10 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
Remote I/O Networks—A Communications Overview 1 At a Glance Overview This chapter provides an overview of remote I/O (RIO) networks. What's in this Chapter? This chapter contains the following topics: Topic Page RIO Network Communications 12 Processing Nodes on the RIO Network 13 RIO Drop Addressing 15 RIO Network Cable System 16 RIO Network Node Part Number Summary 18 11 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
Communications Overview RIO Network Communications Overview Modicon’s RIO network is a high speed (1.544 Mbit/s) local area network (LAN) that uses commercially available coaxial cable and CATV media technology.
Communications Overview Processing Nodes on the RIO Network Overview The RIO network supports communications between a PLC and one or more drops of I/O modules dispersed throughout your local area—e.g., your manufacturing or processing facility. All messages on the RIO network are initiated by a master node called the RIO head or processor. All other nodes on the network communicate with the RIO head via RIO adapters located at the drops.
Communications Overview RIO Adapters An adapter module resides at each remote drop on the RIO network.
Communications Overview RIO Drop Addressing Overview Each RIO drop adapter on the network must be assigned a unique address number. The RIO processor uses this drop address to send I/O module data or ASCII message data to the proper adapter. The physical location of an adapter on the network has no bearing on its address or on the data throughput, making the RIO network a true bus architecture.
Communications Overview RIO Network Cable System Overview The RIO processor at the controller head-end is connected to an adapter at each of the remote drops via a network cable system. Trunk Cable Starting at the RIO processor and running the entire length of the network are one (linear) or two (dual or redundant) trunk cable(s). Taps are installed along the length of the trunk cable(s), and a drop cable is run from a tap to a drop adapter.
Communications Overview Terminating the Cable System A proper impedance match is maintained across the network with 75 Ω terminators.
Communications Overview RIO Network Node Part Number Summary RIO Devices The following table shows RIO device types.
Planning and Designing an RIO Cable System 2 At a Glance Overview This chapter provides information on planning and designing an RIO cable system.
Planning and Designing RIO Cable System Linear Cable Topologies Overview There are many possible topologies that may be used for RIO networks. The most common RIO networks use one or two coaxial trunk cables with taps that connect via coaxial drop cables to a series of remote I/O drops. At the head-end of a trunk cable is the PLC with an RIO processor, and at each remote drop is an RIO adapter. These topologies are linear—they do not use any branches or loops in the cable layouts.
Planning and Designing RIO Cable System Note: Quantums use drop #1 for local I/O. When upgrading from a 984A, B, or X PLC to a Quantum Automation Series PLC, the first drop in the RIO network will need to be changed to a drop number other than #1. Redundant RIO Cable Systems If both the head processor and the drop adapters have two cable ports, then redundant linear cables can be run. A redundant topology provides two parallel paths to the same remote I/O drops.
Planning and Designing RIO Cable System The two cables are treated as two separate networks, and each cable is an independent system running from the same RIO processor node to the same remote I/O drops. If a break occurs in cable A or cable B, an LED goes ON at the RIO head processor. The condition is also logged in words 179 ... 277 of the status table: these status words can be accessed via the STAT instruction (see Modicon Ladder Logic Block Library User Guide, 840 USE 101 00).
Planning and Designing RIO Cable System z Each drop on the two trunks must have a unique RIO network address Note: RIO statistics using the STAT block will not provide the true status of each drop because the drops will only be attached to one of the two RIO ports at the head processor. Also, an error LED will be ON at the RIO processor.
Planning and Designing RIO Cable System Hot Standby Cable Topologies Overview A Hot Standby (HSBY) system is comprised of two identically configured PLCs with RIO processors and HSBY modules. The RIO heads are connected via an MA0186-X00 splitter so that either can support the same cable system. One of the PLCs acts as the primary controller that communicates with the RIO network.
Planning and Designing RIO Cable System Single-cable Hot Standby System The following is an illustration of the single-cable Hot Standby (HSBY) system.
Planning and Designing RIO Cable System Redundant Hot Standby Cable Systems Using redundant cabling in a Hot Standby system creates a very powerful system with backup both at the controller head-end and along the RIO network. This topology requires the use of RIO head processors and drop adapters with two RIO cable ports, and it requires the use of two splitters.
Planning and Designing RIO Cable System Hot Standby Coaxial Cable Interconnection Lengths Self Terminating Adapters (STFA) are mounted 18 in. from a HSBY RIO head. Allowable distance between an STFA and the MA-0186-X00 combiner splitter is 8100 ft. Note: Because Hot Standby system RIO heads communicate between themselves to verify connectivity, MA-0186-X00 splitters must be used as RIO head combiners. The MA-0331-000 splitters cannot be used due to their high port isolation quality.
Planning and Designing RIO Cable System Trunk Splitter Use Overview The following are examples of trunk splitter use in standalone and Hot Standby systems. Using a Trunk Splitter in a Standalone System Using a single MA-0331-000 splitter as a branching device on the trunk is permitted. The original requirement when using the MA-0186-X00 as a trunk splitter was that the trunk extensions when running from it need to be balanced to prevent signal reflections.
Planning and Designing RIO Cable System Using a Trunk Splitter in a Hot Standby System Using a single MA-0331-000 splitter as a branching device on the trunk in a Hot Standby system is allowed. As in standalone systems, the original requirement when using the MA-0186-X00 as a trunk splitter was that the trunk extensions running from it need to be balanced to prevent signal reflections.
Planning and Designing RIO Cable System CAUTION Possible Equipment Failure The use of more than one splitter as a branching device on an RIO network is never permitted. Failure to follow this instruction can result in injury or equipment damage. 30 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
Planning and Designing RIO Cable System Illegal Coaxial Cable Topologies Overview The following are several examples of coaxial cable design topologies that are either not recommended or not permitted on an RIO network. Illegal Trunk Cable Termination Remote drops cannot be connected directly to the trunk cable—i.e.
Planning and Designing RIO Cable System Open Taps If a tap is inserted on the trunk for future use and does not currently have a drop cable connected to it, it must be terminated with a Modicon 52-0402-000 Tap Port Terminator.
Planning and Designing RIO Cable System Illegal Drop Cable Connections Branching is not permitted on a coaxial drop cable: P/S PLC RIO I/O I/O I/O RIO Drop P/S RIO I/O I/O I/O Trunk Cable Tap Splitter RIO Drop P/S RIO I/O I/O I/O Note: Branching is permissible when fiber optic cable is used. See Using Fiber Optics in an RIO System, p. 34. 33 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
Planning and Designing RIO Cable System Using Fiber Optics in an RIO System Overview 490NRP954 Fiber Optic Repeaters can be introduced in an RIO cable topology to allow you to transition from coaxial to fiber cable then back again to coax at one or more of the remote drops on any RIO network.
Planning and Designing RIO Cable System Point-to-point Topology with Fiber Optics The following illustration shows two segments of RIO coaxial cable connected pointto-point by two 490NRP954 Fiber Optic Repeaters. The fiber link may be run over much longer distances than a coaxial drop cable, and through harsh environments with noise immunity that cannot be achieved with copper wire.
Planning and Designing RIO Cable System Bus Topology with Fiber Optics Additional fiber optic repeaters can be chained together to extend the length of the fiber link and increase the distance between drops on the RIO network.
Planning and Designing RIO Cable System Tree Topologies with Fiber Optics Tree topologies, which cannot be established with coaxial cable alone (see Illegal Coaxial Cable Topologies, p. 31), can be built legally using fiber optic repeaters.
Planning and Designing RIO Cable System Self-healing Ring Fiber Optic Topology The 490NRP954 Fiber Optic Repeaters have special features built into the signal timing that allow multiple repeaters to be interconnected in a closed-loop ring. The advantage of a ring topology is that if a break occurs anywhere in the ring, it will reconfigure the network so that communications can continue.
Planning and Designing RIO Cable System Note: No sense bit is sent in a self-healing ring topology, and fault detection can be accomplished only via visual inspection of the indicator lights on each repeater or physical status of the cable. 39 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
Planning and Designing RIO Cable System RIO System Design Overview When designing an RIO cable system, consider: z z z z z Key Elements in a Cable System Plan whether you will route one or two cables to the remote drops the node limitations—e.g., single-port or dual port, ASCII device support the expansion capabilities of the PLCs—i.e.
Planning and Designing RIO Cable System Planning for System Expansion The potential for system expansion should be considered in the initial design. It is less costly to provide for expansion in the original RIO network plan than to redesign the network later. If your PLC is able to support more RIO drops than your current plan requires, consider installing additional taps along the network trunk cable.
Planning and Designing RIO Cable System Choosing Coaxial Cables for an RIO Network Overview Your choice of cables for an RIO network is very important. Semirigid cable offers the highest performance trunk cable, but it requires professional installation. Flexible cable is simpler to install but has more signal loss—and thus causes more distance constraints. RG-11 flexible cable is generally recommended for use as the trunk, but RG-6 flexible cable may be used as a trunk cable on small networks.
Planning and Designing RIO Cable System Flexible Cable Two types of flexible cable can be used in Modicon RIO cable systems—RG-6 and RG-11. RG-6 is a 5/16 in. flexible cable with moderate noise immunity and moderate signal loss. The loss varies among manufacturers and cable types. Most applications use RG-6 for drop cables; RG-6 can be used as the trunk cable on small networks. Modicon 97-5750-000 RG-6 quad shield cable can be ordered on 1000 ft.
Planning and Designing RIO Cable System Coaxial Cable Characteristics Cable Bend Radius All cables have a minimum allowable bend radius—i.e., a certain degree beyond which it cannot be bent—and a minimum support requirement. If the cable is bent more than the allowable bend radius or if the installation is not adequately supported, you can easily damage the center conductor, the dielectric, and the cable shield.
Planning and Designing RIO Cable System Electrical Characteristics of Coaxial Media Components Overview The following electrical characteristics must be considered when choosing the media components for your network cable system. These characteristics determine the maximum length of the cable system and the number of nodes permitted on the network. Impedance Impedance is the AC resistance of a cable or network component to a signal.
Planning and Designing RIO Cable System Return Loss Return loss is the measurement of reflected signal strength due to impedance mismatch. This measurement is expressed as a number of dB down from the original signal. Components with a higher return loss are better. If every component of a network were exactly 75 Ω, the return loss would be very high. In the real world this is impossible. Even the slightest impedance mismatch will cause a portion of the signal to be reflected.
Planning and Designing RIO Cable System EMI/RFI Considerations in a Coaxial Cable Routing Plan Overview Electromagnetic interference (EMI) and radio frequency interference (RFI) sources can be avoided by using effectively shielded cable and by using the cable away from troublesome locations.
Planning and Designing RIO Cable System Tap Connections and Locations Overview Each tap has three ports—a trunk-in port, a drop cable port, and a trunk-out port; the RIO cables connect to the tap ports via F connectors. The taps come mounted to a plastic block that is used to isolate them from ground. They must be surface mounted to a wall or an enclosure.
Planning and Designing RIO Cable System Optional Tap Enclosure Considerations Although not required for overall network integrity, you may consider mounting the taps in separate enclosures away from the equipment panels.
Planning and Designing RIO Cable System Grounding and Surge Suppression Overview Choose a low impedance earth ground for your cable system, preferably factory ground. Use 10 gauge wire or larger to ground the cable system. Use a common single-point ground for the cable system and for all equipment associated with the system. A separate ground—e.g., a computer ground—may actually cause more noise because the RIO nodes will not be connected to it.
Planning and Designing RIO Cable System Terminating a Coaxial Cable System Overview Ideally, all connections on the RIO network are terminated in 75 Ω at all times. Depending on the criticality of your application, you may choose to disconnect a drop cable from a drop adapter for short-term maintenance. The trunk cable and any unused tap ports must remain terminated at all times.
Planning and Designing RIO Cable System Designing a Coaxial Cable System to an Attenuation Limit Overview Attenuation happens naturally as a communication signal passes through taps, splitters, splices, cable, connections, and feed-through terminators. Your goal as designer is to provide successful RIO services while holding the attenuation to a maximum of 35 dB (32 dB in the case of the 984 host-based PLCs) from the head processor to any drop adapter on the network.
Planning and Designing RIO Cable System Calculating Maximum System Attenuation To calculate maximum attenuation, add all sources of attenuation between the RIO head processor and a drop adapter; the total loss must not exceed 35 dB (32 dB for controllers without pre-amps). The maximum attenuation for the system is generally measured from the RIO processor node to the last drop adapter on the network. The last adapter usually represents the maximum loss of the entire cable system.
Planning and Designing RIO Cable System Calculating Attenuation on a Coaxial Network—An Example Here is a sample calculation of total attenuation in a five-drop RIO cable system. The calculation is made between the head processor and the adapter at drop 5. The distance between the head and the last tap is 2179 ft.
Planning and Designing RIO Cable System Each drop cable is run from a Modicon MA-0185-100 tap in the trunk cable. Four of these taps lie between our two end points, and we must calculate their tap insertion loss (TIL): TIL = NOT × 0,8dB = 4 × 0,8 = 3,2dB The drop cable attenuation (DCA) at drop 5 has been predetermined as 0.3 dB. The attenuation of the tap (TDA) at drop 5 is 14 dB. Since this system does not use a splitter, the NOS is 0.
Planning and Designing RIO Cable System Attenuation Considerations in an Optical Path Overview Attenuation that occurs on an RIO fiber optic link is independent from attenuation on the coaxial cable system. Signals that are attenuated no more than 35db after traveling through a coaxial cable section are converted in the fiber repeater circuitry to levels usable in the fiber link.
Planning and Designing RIO Cable System Example— Attenuation on a Simple Optical Link Here is an example of a point-to-point optical connection that uses 3 km of 62.5/125 μm fiber cable. There is one splice in the cable connection. P/S PLC RIO I/O I/O I/O 62.5/125 µm Fiber Optic Cable (3.5 dB/km) 3 km splice (0.25 dB) P/S RIO I/O I/O I/O The specified power loss budget for a link using this optical cable is 11 dB. We know that the cable’s attenuation over 3 km is 3.5 dB/km x 3 = 10.
Planning and Designing RIO Cable System Maximum Number of Repeaters and Jitter Considerations Overview Due to the cumulative effects of reactive components, the maximum number of repeaters in a linear network is five. This number may be reduced by the system’s total pulse width distortion, or jitter. The table below shows jitter contributed by recommended fiber optic cables. Core Diameter Jitter 50/125 μm 3.0 ns/km 62.5/125 μm 5.0 ns/km 100/140 μm 7.
Planning and Designing RIO Cable System Connecting More than Five Drops The accompanying illustration shows how six RIO drops may be interconnected using fiber optic cable but still remain within the maximum allowable limit of five repeaters. Installers are cautioned against using ring configurations involving more than five RIO repeaters. In the event of a break in the fiber cable, a linear configuration will be the result and communication errors could occur if too many repeaters are connected together.
Planning and Designing RIO Cable System P/S CPU CRP Local Drop Coax NRP954 NRP954 NRP954 NRP954 NRP954 NRP954 NRP954 Drop 2 Drop 3 Drop 4 Drop 5 Drop 6 P/S CRA I/O P/S CRA I/O P/S CRA I/O P/S CRA I/O P/S CRA I/O Coax Coax Coax Coax P/S CRA I/O = 75Ω Terminated Coaxial Cable Tap or or = Coaxial Cable Tap = Fiber Cable TxRx = Coaxial Cable Drop 7 Coax 60 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
Planning and Designing RIO Cable System Planning RIO Drops Overview The maximum length for Modicon’s recommended drop cable is 164 ft (50 m). Keeping the drop cable lengths within this limit helps reduce attenuation on the drop and noise problems on the system. The minimum length for a drop cable is 8.53 ft (2.5 m)—shorter drop cable generates unacceptable signal reflections from the tap. RG-6 is the more commonly used drop cable—it has fair noise immunity and good flexibility.
Planning and Designing RIO Cable System Problems related to dynamic range can be difficult to find, and can vary from day to day. Therefore, a properly designed system should provide a sufficient margin of error that allows for variances in the signal level—e.g., a receive level of +1 dBmV or above, attenuation of 32 dB between the RIO head-and the adapter at the most remote drop. Documenting Your Cable System Design The cable system should be fully documented.
Planning and Designing RIO Cable System Customer: Network: Location: Plant: Revision/Approved by: Date: Trunk Cable Materials Misc. Connector Manufacturer Model #: Quantity Needed: Misc. Connector Manufacturer Model #: Quantity Needed: Drop Cable and Tap Materials Drop Cable Manufacturer: Model # Quantity Needed: dB Loss (per 100 ft. or m): Maximum Pull Strength (lb.
Planning and Designing RIO Cable System Drop Cable and Tap Materials Drop Loss (dB): Quantity Needed: Tap Port Terminator Manufacturer: Model #: Quantity Needed: Misc. Connector Manufacturer Model #: Quantity Needed: Misc. Connector Manufacturer Model #: Quantity Needed: Trunk Cable Length Tap Number Trunk length (from head) Trunk Length (from last tap) 64 Drop Attenuation (other comments) 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.
Planning and Designing RIO Cable System Trunk Cable Length Tap Number Trunk length (from head) Trunk Length (from last tap) Drop Attenuation (other comments) 65 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
Planning and Designing RIO Cable System 66 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
RIO Network Hardware Components 3 At a Glance Overview This chapter provides information on RIO network hardware components.
RIO Network Hardware Components RG-6 Cable Overview The following table shows specifications for the Modicon 97-5750-000 RG-6 cable (available in 1000 ft rolls): Modicon 97-5750-000 RG-6 Cable (Belden 3092A) Modicon Preassembled Drop Cable Attenuation 0.38 dB/100 ft @ 2 MHz 0.36 db/100 ft @ 1.544 MHz, RIO Transmit Frequency Impedance and Tolerance 75 Ω (+/- 3 Ω) Velocity of Propagation 82% Capacitance 16.
RIO Network Hardware Components RG-11 Cable Overview The following table shows the specifications for the Modicon 97-5951-000 cable, which is available in 1000 ft rolls. Modicon 97-5951-000 RG-11 Cable (Belden 3094A) Recommended RG-11 Plenum Cable Attenuation 0.38 dB/100 ft @ 5 MHz 0.17 dB/100 ft @ 1.544 MHz, RIO Transmit Frequency Impedance and Tolerance 75 Ω +/- 3 Ω Velocity of Propagation 82% Capacitance 16.
RIO Network Hardware Components Semirigid Cable Overview The following tables show the specifications for recommended semirigid cables. CommScope QR 540 JCA Attenuation 0.14 dB/100 ft @ 5 MHz Impedance and Tolerance 75 Ω +/- 2Ω Velocity of Propagation 88% Capacitance 15.3 pF/ft Type of Shield Aluminum Type of Jacket Polyethylene Minimum Bend Radius 5.0 in. Maximum Pull Strength 220 lb CommScope QR 860 JCA Attenuation 0.
RIO Network Hardware Components Selecting Fiber Optic Cable Overview If you are using 490NRP954 Fiber Optic Repeaters in your RIO network, there are several parameters you need to consider, among them cable attenuation and cable bandwidth. Parameters are specified by the cable manufacturer and are based on: z z z The wavelength of the optical signal—820 nm in the RIO optical link The cable index—use graded-index cable only The fiber size—50/125 μm, 62.
RIO Network Hardware Components Hardware Overview Overview This section provides detailed information about the requirements and availability of hardware components for the RIO cable system (see the table on the following page). Many of the components are available directly from Modicon; qualified alternative sources are also given.
RIO Network Hardware Components RIO Coaxial Cable System Hardware Components The following table shows the RIO coaxial cable system hardware components.
RIO Network Hardware Components Tap Specifications IN Modicon MA-0185-100 Taps connect the drop cables to the main trunk cable and isolate the RIO drop adapter from the rest of the network. This tap is nondirectional—it allows signals to be propagated in both directions along the trunk cable. An MA-0185-100 tap has one drop port and two trunk ports. 1.00 in. 2.75 in. 2.00 in. 3.1 in. OUT AN AEG COMPANY Overview 1.00“ .650 in. .97 in.
RIO Network Hardware Components The following table shows the specifications for the MA-0185-100 Tap. MA-0185-100 Tap Specifications Impedance 75 Ω Frequency Range 100 kHz ... 30 MHz Tap Loss 14 dB (+0.5 dB) Trunk Insertion Loss 0.8 dB maximum Trunk Return Loss 26 dB maximum Tap Return Loss -18 dB minimum Temperature Range -40 ... +60° C Humidity 95% at 85° C Sealing RFI/EMI sealed Interconnections F Connectors torque up to 90 in.
RIO Network Hardware Components Splitter Specifications Overview The Modicon MA-0186-100 Splitter is used as a signal combiner in a Hot Standby cable system; each programmable controller has the ability to transmit onto the network using the splitter. The Modicon MA-0331-000 splitter is used as a branching device in certain trunk cable topologies, as defined in Planning and Designing an RIO Cable System, p. 19. The following illustration shows the splitter dimensions. IN AN AEG COMPANY TRUNK SPLITTER .
RIO Network Hardware Components MA-0186-100 Interconnections MA-0331-000 F connector, torque 90 in./lb F connector, torque 90 in./lb max max Note: Splitters not supplied by Modicon will not be supported by Modicon. Note: The Modicon MA-0186-000 splitter can be used in an RIO network if the splitter is at least Revision B. Do not use a lower revision of the MA-0186-000 splitter.
RIO Network Hardware Components F Connectors for Coaxial Cables Overview Flexible cables (RG-6 and RG-11) use F connectors to make the tap port connections; F connectors are also used to make the drop cable connection to certain drop adapters (see Planning RIO Drops, p. 61). F connectors use a 3/8-32 thread. Always use industrial grade F connectors in RIO cable systems— commercial grade F connectors should not be used.
RIO Network Hardware Components F Connectors for Semirigid Cable The following F connectors are suggested for use with CommScope® QR type semirigid cable. See RIO Cable Material Suppliers, p. 143 for contact information. The following illustration shows the Thomas & Betts LRC® two-piece AI540FMQR adaptor for connectorizing with QR 540 JCA cable. B Hex A Hex 3/4 DIA 7/16 Hex .035 DIA .040 3/8-32 THD Center Conductor Cutting Guide A Hex and B Hex = 1 in., Overall Length = 5 1/8 in.
RIO Network Hardware Components F Adapters for Semirigid Cable Overview A Modicon 52-0480-000 Right Angle F Adapter is usually needed to attach semirigid trunk cable to the F connector on a tap port; it may also be necessary at other connection points in order to maintain bend radius tolerance on a semirigid cable. .032 Diameter 3/8 - 32 THD 7/16 in. Hex Accepts 18-20 AWG Wire 1.155 in.
RIO Network Hardware Components BNC Connectors and Adapters Overview Some drop cables may require a BNC connector to connect to certain RIO drop adapters (see Planning RIO Drops, p. 61) or to certain RIO processors at the controller head-end. Always use industrial grade BNC connectors or adapters in RIO cable systems—commercial grade hardware should not be used. BNC Connectors for RG-6 Cable The recommended BNC connectors fit RG-6 cable only.
RIO Network Hardware Components F-to-BNC Adapters for RG11 Cable There is no approved BNC connector for RG-11 cable. Where a BNC connection is required, use an approved F connector for the RG-11 cable followed by an adapter connection such as the Modicon 52-0614-000 F-to-BNC Adapter. Note: The S901, S908, or S929 head processors used in the 984A, 984B, and 984X Programmable Controllers require the use of a 52-0614-000 F-to-BNC Adapter. The following illustration shows the F-to-BNC Adapter. .566 in.
RIO Network Hardware Components Network Terminators Overview All terminators used on the RIO network must have a power handling capability of at least 1/4 W. Terminators designed for power-handling, CATV applications, or broadband cable applications cannot be used on an RIO network—they do not work in the RIO frequency range and will cause signal distortion. Tap Port Terminators All unused drop connectors on taps must be terminated with a standard 75 Ω tap port terminator.
RIO Network Hardware Components BNC In-line Terminators A Modicon 60-0513-000 BNC In-line Terminator is used to terminate the end of a drop cable for nodes that require external 75 Ω termination with BNC-type connections—i.e., the older J890/J892-00x Adapters and the Modicon 410 and 3240 Motion products (see the list in RIO Network Cable System, p. 16). 1.95 in. .575 in.
RIO Network Hardware Components Self-terminating F Adapter Options Self-terminating F Adapters for RG-6 Hot Standby Systems and Drop Cables The 75 Ω self-terminating F adapters (STFA) crimp onto the RG-6 cable. There are two types of self-terminating F adapters: A Modicon 52-0411-000 model for quad shield cable 3/8 - 32 THD 5/8 in. Hex Accepts 18...24 AWG Center Conductor .194 in. .324 in. .520 in. .339 in. .360 in. Hex Crimp 1.665 in.
RIO Network Hardware Components Ground Blocks Overview A cable system must be grounded at all times to assure safety and proper operation of the nodes on the network. The RIO head processor grounds the cable system, but if the cable is disconnected, that earth ground connection is removed. An optional Modicon 60-0545-000 Ground Block at the head will provide earth ground connection when the cable and RIO processor are disconnected.
RIO Network Hardware Components Ground blocks have a low insertion loss, and they usually are not figured into the attenuation calculations unless five or more are used—in that case, calculate an extra .2 dB into the trunk attenuation. The ground block has a 75 Ω impedance, a return loss of >40 dB, and a wide application frequency range. The 60-0545-000 Ground Block consists of two female in-line F connectors and a separate screw hole binding for attaching a ground wire.
RIO Network Hardware Components Surge Suppressors Overview Surge protection is available for coaxial network trunks that span between buildings and are exposed to lightning. The recommended product has internal gas discharge surge protectors that absorb very high currents induced into the cable system by near-lightning strikes. The device indicated has insertion loss of less than 0.3 dB at the network operating frequency. The unused drop ports must be terminated with a Modicon 52-0402-000 Port Terminator.
RIO Network Hardware Components The following diagram shows the surge suppresor. 1/4” Mounting Hole 6.4 mm Isolated Port Marker 1.9” 38.4 mm Trunk Port Trunk Port 1/4”-20 Stud or 6mm 0.4” 10 mm 0.38” 9.7 mm 0.95” 24 mm 3.1” 79 mm 89 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
RIO Network Hardware Components Fiber Optic Repeater Overview The 490NRP954 Fiber Optic Repeater provides communication between two or more RIO nodes or segments of networks over the fiber optic medium. Each repeater contains one electrical RIO interface and two fiber optic transceivers. Top View Allow 4.0 in. (100 mm) Rear Clearance for Access to Switches, Cables, and Fuse 8.3 in. (211 mm) 5.25 in. (133 mm) 1.53 in. (39 mm) 11.5 in. (292 mm) 12.83 in. (326 mm) 14.08 in.
RIO Network Hardware Components Related Documentation See the Modicon Fiber Optic Repeaters User’s Guide, part number GM-FIBR-OPT, for more detailed information.
RIO Network Hardware Components In a point-to-point optical connection, one repeater is always the head and the other is always the drop: Head (with RIO Drop #1) P/S PLC RIO I/O I/O Drop Repeater (Jump in neutral position) I/O Head Repeater (Jump in 1 or 2 position) RIO Drop #2 P/S RIO I/O I/O I/O In an optical bus connection, one repeater is always the drop and all other repeaters are heads: Head (with RIO Drop #1) P/S PLC Drop Repeater (Jumper in neutral position) RIO Head Repeater (Jumper
RIO Network Hardware Components Recommended Materials for Fiber Optic Links Overview Modicon does not manufacture fiber optic products such as cables, connectors, or special tools. However, we have experience with third party suppliers of materials and can provide some guidelines on what will work with our products. Connectors The following table shows recommended connectors. Termination Kits Connector Type Part Number Operating Temperature ST Bayonet (Epoxy) 3M 6105 -40 ...
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Installing an RIO Network 4 At a Glance Overview This chapter provides information on installing an RIO network.
Installing an RIO Network Installation Overview Overview This chapter presents cable preparation and installation procedures for coaxial cables. Many connectors and special-purpose installation tools required for these cables are available from Modicon. Modicon provides a common family of compatible connectors for RG-6 and RG-11 cables. A set of installation procedures has been established, with a common setup procedure and separate finishing procedures for each type of connector used.
Installing an RIO Network RG-6 Cable Connections Overview Connectors available for RG-6 cable are: Installation Tools Connector Type Cable Design Crimp Size MA-0329-001 F Quad .360 52-0487-000 BNC Non-quad .324 043509446 BNC Quad .360 52-0399-000 Self-terminating F Non-quad .324 52-0411-000 Self-terminating F Quad .
Installing an RIO Network RG-6 Cable Installation Tool RG-6 Cable Installation Tool A Modicon 490RIO00400 RG-6 Installation Tool is used to strip RG-6 cable for installation of F connectors. There are two blades in an installation tool insert. The first is designed to cut though the cable to the center conductor, cutting away the jacket, the shields, and the dielectric. The second blade is designed to cut off only the jacket, leaving as much braid as possible under it.
Installing an RIO Network The Modicon 043509432 Crimp Tool is used to install BNC connectors onto RG-6 cable. The tool makes two sizes of hex crimp: 0.276 in. and 0.325 in. Consult Sales, available by special order only. .276 in Cable Cutters .325 in Modicon 60-0558-000 Cable Cutters are used to cut cable without compressing it. The cable cutters have a high leverage handle and rounded cutting edges. Cable cut with normal flat diagonal cutters will flatten, and this will alter the cable’s impedance.
Installing an RIO Network Preparing RG-6 Cable for a Connector How to Prepare an RG-6 Cable for a Connector The following procedure shows you how to prepare the RG-6 cable for a connector. Step Action 1 Cut the cable squarely across the end with the 60-0558-000 Cable Cutters. Open the jaws of the 490RIO00A400 RG-6 Installation Tool and set the cable in the trough with the cable end placed against the stop. 2 Release the handle and let the spring hold the tool on the cable.
Installing an RIO Network Step 4 Action Open the jaws and remove the cable. Twist off the cable dielectric and jacket by hand. Remove any long braid strands remaining around the prepared cable end. (Long braid strands may indicate that a new blade pack is needed.) Remove any dielectric on the exposed center conductor. 3/16 in 23/64in 5 Fold all of the braid over the jacket. Avoid tearing the inner cable foil.
Installing an RIO Network Installing F Connectors on Quad Shield RG-6 Cable Overview The following steps describe how to install F connectors on quad shield RG-6 cable. Note: Use an F Connector from an MA-0329-001 Cassette on an RG-6 quad shield cable prepared according to the procedure described in Preparing RG-6 Cable for a Connector, p. 100. Installing F Connectors The following steps demonstrate how to install F connectors.
Installing an RIO Network Step Action 3 Remove the F connector by sliding it out the side of the cassette. 4 Align the 60-0544-000 Crimp Tool on the F connector, and apply a .360 in crimp. Crimp .360 5 Pull on the F connector to make sure that the crimp is snug—the connector should not fall off. Pull Slightly 103 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
Installing an RIO Network Step 6 Action Install the F connector onto the cable port of the RIO drop adapter, tap, or other cable hardware device using a 7/16 in. open-end wrench. Note: Finger tightening is not sufficient. 104 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
Installing an RIO Network Installing BNC or Self-terminating F Connectors on RG-6 Cable Overview The following procedure may be used to install either a BNC connector or a selfterminating F adapter on an RG-6 cable. The BNC connector and self-terminating F adapter are available in two versions that fit non-quad shield and quad shield cable. Make sure that you are using the proper size connector for the cable. Connector Type Cable Type Connector Part # Crimp Size BNC Non-quad 52-0487-000 0.
Installing an RIO Network Installing BNC Connectors Take the following steps to install BNC or self-terminating F connectors. Step 1 Action Strip the end of the cable jacket by a maximum of 0.375 in. and gently flare the cable shield, exposing the cable’s center conductor. Slip a crimp ferrule onto the cable as shown below. Crimp Ferrule Center Conductor 2 Insert the cable center conductor into the stem of the connector, pushing firmly to enter the spring clip of the pin.
Installing an RIO Network RG-11 Cable Connections Overview To make a connection to an RG-11 cable, use a 490RIO00211 F connector from Modicon. Required Tools The following tools are required to install an F connector on an RG-11 cable: z z z z the Modicon 490RIO0S411 RG-11 Installation Tool with gray blade pack the Modicon 490RIO0C411 Connector Installation Tool the Modicon 60-0558-000 Cable Cutters (see RG-6 Cable Installation Tool, p. 98) a standard 9/16 in.
Installing an RIO Network The RG-11 Installation Tool Overview The Modicon 490RIO0S411 is used to strip RG-11 cable for installation of F connectors. There are two blades in an installation tool insert. The first blade is designed to cut through the cable to the center conductor, cutting away the jacket, the shields, and the dielectric. The second blade is designed to cut off only the jacket leaving as much braid as possible under it.
Installing an RIO Network Installing F Connectors on RG-11 Cable Overview Note: Use a 490RIO002111 F connector and prepare the cable according to the procedure described below. Installing F Connectors The following steps demonstrate how to install F connectors. Step Action 1 Cut the cable squarely across the end with the 60-0558-000 Cable Cutters. 2 Slide connector assembly over the cable as shown.
Installing an RIO Network Step Action 4 Release the tool handle and let the spring hold the tool on the cable. Slowly rotate the tool 8 to 12 turns (as shown above) or until the tool turns freely. Let the spring provide the cutting pressure. Pull the tool from the cable to complete the cable prep. 5 Cable end should appear as shown. 5/16 in 9/16 in 6 If using single braid cables, fold the braid over the jacket. If using double braid cables, fold the outer braid over the jacket.
Installing an RIO Network Step 8 Action To determine how far you should insert the cable, place the cable next to the connector as shown. Position the dielectric at the installation groove (point A). With your thumbnail, mark the cable jacket at the edge of the connector (point B). B A B 9 A Insert cable dielectric into the connector post. Push and twist connector until the cable bottoms inside of the connector (point B should be even with the end of the connector).
Installing an RIO Network Step Action 10 Insert connector (with cable) into installation tool #490RIO0C411. Seat plastic sleeve into the pocket of the tool jaw. Squeeze handles together. The black plastic sleeve and the white pin insulator should both snap into place, with the oring completely hidden under the collar. The white plastic insulator holding the pin should be below or flush with connector interface.
Installing an RIO Network Semirigid Cable Connections Overview The following products are recommended for making F connections on a semirigid cable: z z the LRC® two-piece cable adapter, catalog number AI540FMQR made by Thomas & Betts, for the QR 540 JCA cable the LRC® three-piece cable adapter, catalog number AI860FMWQR made by Thomas & Betts, for QR 860 JCA cable Actual cable installation is not trivial because of the cable size and shield material.
Installing an RIO Network Semirigid Cable Installation Tools Overview The Ripley Company Cablematic® JCST-QR Jacket Coring Stripping Tool performs all required operations to prepare the recommended cables for connector attachment. Instructions for use and component replacement part numbers are included with this product.
Installing an RIO Network Preparing a Semirigid Cable for a Connector Overview Instructions for use are included with the JCST-QR Jacket Coring Stripping tool. Preparation may be done using a power drill if the ratchet handle has been purchased. A drill adapter is included with this part. How to Prepare the Cable Take the following steps to prepare the semirigid cable for a conductor. Step Action 1 Cut the cable, keeping the end as round as possible.
Installing an RIO Network Installing F Connectors on Semirigid Cable Overview The following procedures are used for installing F connectors on semirigid cable. Note: We recommend that you use the two-piece AI540FMQR adaptor for connectorizing QR 540 JCA cable or the three-piece AI860FMWQR adaptor for connectorizing QR 860 JCA cable. Two-Piece Connector Installation Three-Piece Connector installation Take the following steps for two-piece connector installation. Use 1 in. wrenches for 540 connectors.
Installing an RIO Network Semirigid Trunk Cable Tap Port Connections Overview Taps cannot accept two semirigid cable connectors directly onto the trunk ports because of their large size. To overcome this problem, use the Modicon 90° right angle F adapter, part number 52-0480-000 or Gilbert Engineering part number GFMF/90 to make the connection. RG-11 and RG-6 connectors do not have a fit problem and may be connected directly to the tap ports.
Installing an RIO Network Providing Line Termination on the Drop Cable Overview Drop cables running to J890/J892-00x drop adapters or 410 and 3240 Motion modules require Modicon 60-0513-000 In-line BNC Terminators that allow you to disconnect and reconnect the cable. Note: The cables should be labeled at every connection to identify each drop and trunk cable segment. All taps should be labeled with a number that corresponds to the drop number specified in the PLC’s I/O Map.
Installing an RIO Network Optional Drop Cable In-line Termination All drop adapters—except those listed in RIO Network Cable System, p. 16— provide 75 Ω termination inside the modules themselves. You may want to consider providing the drop cables leading to these adapters with self-terminating F or BNC adapters to assure proper cable termination when the drop adapter is disconnected.
Installing an RIO Network Connecting/Disconnecting a Drop Cable at a Tap Overview None of the three ports on an MA-0185-X00 can be left open while the system is running. Taps that do not have drop cables running from them must be terminated with a Modicon 52-0402-000 Tap Port Terminator. Connecting a Drop Cable to an Unused Tap The following steps demonstrate how to connect a drop cable to an unused tap. Step Action 1 Obtain permission from your network manager to stop communications on the network.
Installing an RIO Network Disconnecting a Drop Cable from a Tap The following procedure demonstrates how to disconnect a drop cable from a tap. Step Action 1 Obtain permission from your network manager to stop communications on the network. 2 Disconnect the F connector on the drop cable from the drop-cable tap port. 3 Insert a Modicon 52-0402-000 Tap Port Terminator terminator in the drop-cable tap port.
Installing an RIO Network Installing Fiber Optic Repeaters Overview Prior to installing 490NRP954 Fiber Optic Repeaters, fiber optic cable must be installed. Follow the cable manufacturer’s recommendations for routing, installation, and testing of the cable. Take care when terminating the ends of each fiber optic cable in order to minimize loss of the optical signal. Follow the manufacturer’s guidelines for installing optical connectors.
Installing an RIO Network For vertical mounting, use the brackets supplied with the unit for bolting to a panel. The brackets have tabs that insert into slots on the repeater’s bottom panel. No additional hardware is required for securing the brackets. You will have to furnish hardware for bolting the repeater brackets to your panel—four bolts are required. Typically, standard 1/4-20 (10 mm) bolts are satisfactory.
Installing an RIO Network RIO Shield-toChassis Jumper Set the shield-to-ground jumper switch appropriately to specify the repeater’s relationship to chassis ground (see Fiber Optic Repeater, p. 90 for details). Connecting Power The repeater operates either from 110/220 VAC line power or from 24 VDC. The AC and DC power connections are located on the back of the panel.
Installing an RIO Network CAUTION Possible equipment damage Fiber optic repeaters cannot be operated with both 115 VAC and 24 VDC power applied at the same time. Failure to follow this instruction can result in injury or equipment damage. Grounding The repeater obtains its ground in the AC power cord via the green gnd wire or through the DC wire. Using a continuity tester, verify the repeater chassis is grounded to the site ground.
Installing an RIO Network Terminating the Trunk Cable Overview The trunk cable must be terminated by inserting a Modicon 52-0422-000 Trunk Terminator in the trunk-out port of the last tap on the RIO network: Trunk Cable Trunk-In Port IN Drop Cable Trunk-Out Port OUT 52-0422-000 Trunk Terminator Last Tap on the RIO Network 126 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
Installing an RIO Network Installing the Ground Point Overview The cable system should be grounded at a point within 20 ft of the RIO processor at the head-end of the network. A Modicon 60-0545-000 Ground Block, a single Modicon MA-0185-100 Tap, a Modicon MA-0186-100 Splitter, or a Modicon MA0331-000 Splitter may be used, assuring that the cable system will be permanently grounded even when disconnected from the RIO processor.
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Testing and Maintaining an RIO Network 5 At a Glance Overview This chapter provides information on testing and maintaining an RIO network.
Testing and Maintaining an RIO Network Maintenance and Testing Requirements Overview A properly installed RIO system will achieve reliable communications between the nodes with the certainty that timing and integrity are consistent and repeatable. After the installation has been completed, the RIO network must be tested to ensure proper operation of all network components. Each test should be documented to provide data for ongoing maintenance.
Testing and Maintaining an RIO Network RIO Drop Maintenance Information Log Customer Network Location Plant Revision/Approved by Drop Number Date Node Type Serial Number PROM Combo Plant Location 131 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
Testing and Maintaining an RIO Network Coax RIO System Network Integrity Overview A battery of up to eleven tests can be performed to ensure reliability of the RIO system. These tests are generally performed in the order described below. RIO network certification services are available from Modicon.
Testing and Maintaining an RIO Network Test 6 Time Domain Reflectometer (TDR) Test Performed on all drop cables and at all trunk end points. It tests the integrity of all drop cables up to and including the tap port, as well as the trunk cable components. Results are produced on a strip chart record with the location of impedance mismatches and the extent of the impedance mismatch. The specification limit for any TDR measurement is determined by the cause of the mismatch.
Testing and Maintaining an RIO Network RIO System Tests for Critical Applications Tests 8 ... 10 guarantee performance—if your RIO network is critical to the operation of your process, these tests are highly recommended. They can also be beneficial if your operating environment is extremely noisy. Test 8 Attenuation Measurements Taken during the attenuation sweep test or using the LMT/LMR attenuation measurement system.
Testing and Maintaining an RIO Network Problem Sources on an RIO Network Overview Noise on the RIO network is a frequently identified problem source in the troubleshooting process. The symptom is usually excessive retries at the RIO drop adapters. Most noise problems are caused either by inadequate spacing of RIO cable or components from power cables or by an inadequate earth ground. The other common problem source is poor installation.
Testing and Maintaining an RIO Network Problems Stemming from Poor Installation Defective media products can account for some system problems. The main installation problem is usually in the connectors. Using recommended connectors and tools will minimize these kinds of problems. Installation problems can usually be tracked by performing a visual inspection of the network. You should be able to pull on the F or BNC connections without them falling off.
Testing and Maintaining an RIO Network On-line and Off-line Error Isolation Overview RIO troubleshooting is a process of isolating problems in an on-line system, usually with the aid of LED indicator lamps and system statistics. Media-related problems are generally solved off-line, not by using LEDs or system statistics.
Testing and Maintaining an RIO Network Troubleshooting Fiber Optic Repeaters Overview Here is a typical point-to-point RIO fiber optic link: Head (with RIO Drop #1) P/S PLC RIO I/O I/O I/O Coaxial Cable FR1 (Drop) Rx Tx Tx Rx FR2 (Head) Coaxial Cable RIO Drop #2 P/S RIO I/O I/O I/O There are well documented procedures for analyzing the wire side characteristics of this type application, and it is recommended that they be used as a first line of attack and afterward whenever trouble is suspec
Testing and Maintaining an RIO Network Broken Cable Detection and Remedies Unlike coaxial cable, fiber cable contains physically separate transmit and receive lines. It is possible to lose communications through the Rx line while the Tx line remains intact. A break in the Rx line will deprive the PLC of input data. Under ordinary circumstances, the PLC continues to drive outputs via the intact transmit line. This could lead to outputs turning ON or OFF due to invalid (INPUT STATE: 0) input data.
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Appendices At a Glance Overview These appendices provide information on RIO cable material suppliers as well as a glossary of terms related to remote I/O cable systems. What's in this Appendix? The appendix contains the following chapters: Chapter A Chapter Name Page RIO Cable Material Suppliers 143 141 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
Appendices 142 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
RIO Cable Material Suppliers A RIO Cable Material Suppliers RIO Cable Material Suppliers Belden Wire and Cable Company 2200 U.S. Hwy. 27 South P.O. Box 1980 Richmond, IN 47374 Telephone: (765) 983-5200 or (800) 235-3361 Fax: (765) 983-5294 Website: www.belden.com CommScope, Inc. Digital Broadband Division P.O. Box 1729 1375 Lenoir-Rhyne Blvd. Hickory, NC 28603 Telephone: (800) 982-1708 (828) 324-2200 Fax: (828) 328-3400 Website: www.commscope.com Gilbert Engineering (now known as Corning Gilbert, Inc.
RIO Cable Material Suppliers Relcom, Inc. 2221 Yew Street Forest Grove, OR 97116 Telephone: (800) 382-3765 Website: www.relcominc.com Ripley Company Cablematic Tool Division 46 Nooks Hill Road Cromwell, CT 06416 Telephone: (860) 635-2200 Website: www.ripley-tools.com Rostra Tool Company 30 East Industrial Road Branford, CT 06405 Telephone: (203) 488-8665 Fax: (203) 488-6497 Website: www.rostratool.com Square D Services - Automation 1960 Research Drive Troy, MI 48083 Telephone: (888)-SQUARED Website: www.
RIO Cable Material Suppliers 3M Telecom Systems Division 6801 River Place Blvd. Austin, TX 78726-9000 Telephone: (800) 426-8688 Website: www.3m.com/market/telecom 145 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
RIO Cable Material Suppliers 146 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
Glossary A amplitude A measure of the strength of a signal. application A user program armor A metal wrapping around a coaxial cable used for mechanical protection. attenuation Signal loss through an electrical circuit or conductor (see also signal loss). B bandwidth A range of frequencies. baseband A type of network having a single communications channel. RIO is a baseband communications network. bend radius The radius of the arc along which a cable may be bent.
Glossary C cable shield The outer conductor of a coaxial cable used to protect the signal on the cable from noise. cable sweep A test that assures proper network response within a given frequency range. carrier detect A status LED indicating the presence of activity on the network. CATV Community antenna television center conductor The center wire in a coaxial cable, usually made of copper or copper-clad metal.
Glossary dispersion The cause of bandwidth limitations in a fiber optic signal. Dispersion causes a broadening of input pulses along the length of the fiber. Three major types are: mode dispersion caused by differential optical path lengths in a multimode fiber; material dispersion caused by a differential delay of various wavelengths of light in a waveguide material; and waveguide dispersion caused by light traveling in both the core and cladding materials in single-mode fibers.
Glossary frame A message unit, particularly that part between the start delimiter and the end delimiter. frame check sequence A calculated number sent with a message unit and checked by the receiver to assure message integrity. G graded-index Fiber design in which the refractive index of the core is lower toward the outside of the fiber core and increases toward the center of the core. It bends the rays inward and allows them to travel faster in the lower index-of-refraction region.
Glossary input module A device used to connect field inputs. This module mounts into an I/O housing at a drop/channel location. insertion loss The amount of signal lost through a device. L LAN (local area network) A computer network for communication among nodes over a relatively small area (usually less than 10 mi) link layer The RIO communications layer that assures proper message transmission and reception over the network. M mandrel The inner section edge of the F connector.
Glossary N network A system consisting of the cable media components and the communication nodes. node An intelligent unit or option on the RIO network, either an RIO processor or a drop adapter. noise EMI/RFI generated outside the media by electrical devices and induced on the cable system. nondirectional signal A signal that is allowed to travel in any possible directions or is not restricted to travel in only one direction. O output module A device used to connect to field outputs.
Glossary pull strength The maximum allowable torque that may be used to pull a cable through a conduit or enclosure. R redundant cable An RIO network topology in which two cable systems are run from the RIO processor in a PLC to the same group of drop adapter nodes. A dual cable topology requires dual RIO comm ports in the RIO processor node and in all the adapters. See also dual cable. redundant programmable control See Hot Standby System.
Glossary RG-11 A standard coaxial cable type, providing good shielding and medium to low signal loss. RG-6 A standard coaxial cable type, providing good shielding and fair signal loss. S scattering A property of glass that causes light to deflect from the fiber and contribute to attenuation on the fiber link. self terminating F adapter A device used on a drop cable to provide proper termination in the event that the node is disconnected from the drop cable.
Glossary T tap A passive device used to isolate a node from the trunk cable. It allows only a portion of the signal to be transmitted through a port on the tap. tap insertion loss The amount of signal loss in the trunk caused by inserting a tap. TDR (time domain reflectometer) A test device for measuring the integrity of a medium regarding impedance mismatch and connections.
Glossary W wavelength The distance between the same point on adjacent waves. Z zero crossing The condition when the wave form crosses 0 V, either on a voltage rising or on a voltage falling. See also phase continuous signaling. 156 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
B AC Index Numerics 043509432 Crimp Tool for RG-6 connectors, 97 illustration, 99 043509446 BNC Connector for quad shield, 81 490NRP954 Fiber Optic Repeater alternative communication link, 72 communication between two or more RIO nodes, 90 horizontal mounting, 122 LEDs illustration, 91 use in RIO cable topology, 34 vertical mounting, 123 490RIO00211 F Connector connecting RG-11 cable, 107 for RG-11 cable, 48 490RIO00400 Installation Tool for RG-6 cable, 98 for RG-6 connectors, 97 490RIO00406 Installation
Index 600-558-000 Cable Cutters illustration, 99 A AS-MBII-003 Pre-assembled Drop Cable 50 ft length, 68 AS-MBII-004 Pre-assembled Drop Cable 140 ft length, 68 attenuation bandwidth, 71 cable type, 52 calculation equation, 53 calculation example, 54 description, 52 maximum in RIO networks, 45 minimum distance between repeaters, 56 on fiber optic link, 56 on point-to-point optical link, 57 parameters, 71 tap, 52 typical coaxial cable losses, 45 B bend radius for coaxial cables, 44 BNC connector for J890 a
Index environmental considerations for coaxial cables, 44 F F adapters for semirigid cable, 80 F connector description, 78 for quad shield RG-11 Cable, 78 for quad shield RG-6 cable, 78, 102 for semirigid cable, 79 installation procedures, 102 fiber optic cable connecting, 123 fiber optic links recommended connectors, 93 recommended light sources, 93 recommended materials, 93 recommended power meters, 93 recommended termination kits, 93 fiber optic repeater connecting AC power to, 124 connecting DC power
Index MA-0186-100 splitter description, 76 Revision B, 77 specifications, 76 MA-0329-001 F Connector for quad shield RG-6 cable, 78 for RG-6 cable, 48 MA-0329-001 F Connector Cassette for quad shield RG-6 cable, 102 MA-0331-000 splitter description, 76 illustration, 76 specifications, 76 O open taps terminating, 32 P passive couplers AMP Model 502402-4, 93 AMP Model 95010-4, 93 point-to-point topology using fiber optic repeaters, 35 pull strength for coaxial cables, 44 R radio frequency interference avo
Index RIO processor description, 13 S self-healing ring topology using fiber optic repeaters, 38 Self-terminating adapter procedure for installing on drop cable, 119 Self-terminating F connectors procedure for installing, 106 semirigid cable characteristics, 43 installing F connectors on, 116 preparing for a connector, 115 single cable Hot Standby illustration, 25 single cable linear topology illustration, 20 splitter description, 16 star topology not allowed in coaxial cable system, 32 STAT and SENS inst
Index 162 890 USE 101 00 October 2006 This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.
