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Summary of Contents for Contemporary Controls TD960801-0MC
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Page 1: User Manual
EXTEND-A-BUS for A Line of Fieldbus Extenders for DeviceNet User Manual #TD960801-0MC... - Page 2 Contemporary Control Systems, Inc. ARCNET is a registered trademark of Datapoint Corporation. Other product names may be trademarks or registered trademarks of their respective companies. TD960801-0MC Revised 07-16-02 Copyright © Copyright April 1999-2002 by Contemporary Control Systems, Inc. All rights reserved. No part of this publication may be...
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Page 3: Table Of Contents
Chapter 4 Service ... 27 Warranty ... 27 Technical Support ... 28 Warranty Repair ... 28 Non-Warranty Repair ... 29 Returning Products for Repair ... 29 Appendices Appendix A—Permissible Segment Lengths ... 31 Appendix B—Declaration of Conformity ... 34 TD960801-0MC... - Page 4 Figure 2-9 A 62.5/125 m duplex fiber optic cable is used on the -FOG model up to a maximum of 1830 meters ... 15 Figure 2-10 By using two AI3-CXS hubs, a distributed star topology is achieved ... 17 TD960801-0MC...
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Page 5: Chapter 1 Introduction
The data rate on each subnet can be different from the other subnets. DeviceNet identifiers or MAC ID checks are replicated on all subnets. EXTEND-A-BUS pairs are best viewed as an extension cord. Each EXTEND-A-BUS does not consume a permanent MAC ID and, therefore, is transparent to the network. TD960801-0MC... -
Page 6: Features
Low voltage AC or DC powered Panel-mount enclosure Specifications Electrical Input voltage: 10–36 volts Input power: Input frequency: Power Options – DC powered – Redundant powered – AC powered – AC powered with battery backup 8–24 volts 4 watts 47-63 Hz TD960801-0MC... -
Page 7: Port Specifications
CAN status: Module status/network status Optically isolated 82C251 DeviceNet Thick 5 position Open-pluggable 125 kbps: 500 meters (1640 ft) 250 kbps: 250 meters (820 ft) 500 kbps: 100 meters (328 ft) 121 ohms Backbone Port ARCNET ANSI/ATA 878.1 2.5 Mbps TD960801-0MC... -
Page 8: Ordering Information
RG-62/u coaxial -FOG model: 62.5/125 m duplex fiber optic -CXB model: -FOG model: -CXB model: 305 meters (1000 ft) -FOG model: 1830 meters (6000 ft) (optical power budget 10.4dB) -CXB model: -FOG model: -CXB model: 93 ohms -FOG model: TD960801-0MC... -
Page 9: Chapter 2 Installation
Warning This is a Class A product as defined in EN55022. In a domestic environment this product may cause radio interference in which case the user may be required to take adequate measures. TD960801-0MC... -
Page 10: Mounting The Extend-A-Bus
EXTEND-A-BUS, the EXTEND-A-BUS can be snapped onto the DIN rail. Powering the EXTEND-A-BUS The EXTEND-A-BUS requires either low voltage AC or DC power in order to operate. Consult the specifications for power requirements. Power is provided to a four pin removable keyed TD960801-0MC... -
Page 11: Figure 2-1 Dc Powered
Make connections as shown in Figure 2-2. Each power supply source must be sized for the full 4-watt load of the EXTEND-A-BUS. Do not assume that input currents will be balanced from the two supplies. TD960801-0MC... -
Page 12: Figure 2-2 Redundant Dc Powered
4 VA of apparent power. The secondary of the transformer must not be grounded. For convenience, two auxiliary power supplies are available: AI-XFMR for 120 VAC primary power AI-XFMR-E for 240 VAC primary power Reference Figure 2-3. Figure 2-3. AC Powered TD960801-0MC... -
Page 13: Figure 2-4 Ac Powered With Battery Backup
“bus off” state. 2.5.1 CAN Port Assignments A five position open style male connector has been provided on the EXTEND-A-BUS for connections. See figure 2-5 for connector assignments. A mating female connector has been provided in order to make field connections. TD960801-0MC... -
Page 14: Figure 2-5 Can Port Connector Assignments
EXTEND-A-BUS. A clockwise rotation increases the data rate setting. Network Connector (Female Contacts) CAN_H drain CAN_L Device Connector (Male Contacts) TD960801-0MC white bare blue black... -
Page 15: Figure 2-6 Data Rate Switch
S (slave) position since their data rate will be set by the master EXTEND-A-BUS (the one connected to the master) which will broadcast the required data rate to all slaves once the data rate is determined. Autobauding functions for the three data rates: 125, 250 and 500 kbps. TD960801-0MC... -
Page 16: Connecting To The Backbone Port
BNC backbone port. A length of RG-62/u cable, no shorter than 6 feet (2 m) nor longer than 1000 feet (305 m) is connected between the BNC-Tee connectors. At the open end of each BNC-Tee is connected a 93-ohm terminator (BNC-TER). This completes the basic connection. TD960801-0MC... -
Page 17: At The Ends Of Both The Coaxial Cable Backbone And Devicenet Subnets
EXTEND-A-BUSes using BNC-Tee connectors to the backbone wiring. Make sure that any two EXTEND-A- BUSes are separated by at least 6 foot (2 m) of cable and that the complete cabling segment does not exceed 1000 feet (305 m). TD960801-0MC... -
Page 18: Occupy One Coaxial Backbone Segment Before An Active Hub Is Required
Fiber optic cable is available paired for this purpose. Usually the manufacturers' labeling is only on one cable of the pair which is handy for identifying which of the two cables is which. Establish your own protocol TD960801-0MC... -
Page 19: Used On The -Fog Model Up To A Maximum Of 1830 Meters
Figure 2-9. A 62.5/125 m duplex fiber optic cable is used on the -FOG model up to a maximum of 1830 meters. TD960801-0MC... - Page 20 -CXS port from the EXTEND-A- BUS’ -CXB port, make sure that the -CXS port is located at one end of the segment and that no terminator is used. The length of a segment connecting a -CXB port cannot exceed 1000 feet (305 m). TD960801-0MC...
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Page 21: Figure 2-10 By Using Two Ai3-Cxs Hubs, A Distributed Star Topology Is Achieved
Note that the hub-to-hub distance can be a maximum of 610 m when using coaxial cable and that no terminators are used at the AI3 ports. However, the cables to the EXTEND-A-BUSes still cannot exceed 305 m. TD960801-0MC... - Page 22 TD960801-0MC...
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Page 23: Chapter 3 Operation
The result is that CAN networks are usually quite short and frequently less than 100 meters in length at higher speeds. To increase this distance either the data rate is decreased or additional equipment is required. TD960801-0MC... -
Page 24: Theory Of Operation
Therefore, protocols such as DeviceNet, Smart Distributed System and CANopen are passed without modification. Theory of Operation The EXTEND-A-BUS is classified as a remote bridge and contained in a two piece metal enclosure suitable for panel TD960801-0MC... - Page 25 ARCNET backbone. The ARCNET port operates at 2.5 Mbps. Each EXTEND-A-BUS requires a unique ARCNET node ID which has no meaning to the CAN segments. Node ID’s are automatically assigned by the EXTEND-A-BUSes themselves using an arbitration scheme upon power up. TD960801-0MC...
- Page 26 The CAN port must still be powered from the network itself since the EXTEND-A-BUS does not serve as a network power supply; however, the EXTEND-A-BUS can be powered from the 24 volt network power supply. TD960801-0MC...
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Page 27: System Considerations
Another solution is to increase the data rate on all devices to 500 kbps. Still another solution is to move problem devices to the local segment (the same segment as the scanner) in order to eliminate delays due to the EXTEND-A-BUSes. TD960801-0MC... - Page 28 Using the same extension cord analogy, it would appear that a remote bridging system must be powered before or at the same time as the slave devices or master controller in order that all devices can execute initialization routines such as duplicate TD960801-0MC...
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Page 29: Led Indicators
When LEDs flash, they will flash approximately at a rate of 0.5 seconds on and 0.5 seconds off. 3.4.1 CAN Status LED A dual color LED (red/green) is used to identify status of the CAN port. After a power-on sequence, the LED indications are as follows: TD960801-0MC... - Page 30 CAN status off and Link status off CAN status GREEN for 0.25 seconds CAN status RED for 0.25 seconds LINK status GREEN for 0.25 seconds LINK status YELLOW for 0.25 seconds After the power-on sequence, both LEDs assume their normal operation. TD960801-0MC...
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Page 31: Chapter 4 Service
DAMAGES, OR FOR ANY CLAIM BY ANY PARTY OTHER THAN THE PURCHASER. THE ABOVE WARRANTY IS IN LIEU OF ANY AND ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED OR STATUTORY, INCLUDING THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE OR USE, TITLE AND NONINFRINGEMENT. TD960801-0MC... -
Page 32: Technical Support
CC pays for the return shipment to the customer. CC normally ships ground. International shipments may take longer. If the product has been determined to be misused or abused, CC will provide the customer with a quotation for repair. No work will be done without customer approval. TD960801-0MC... -
Page 33: Non-Warranty Repair
In any event, be sure you follow good ESD-control practices when handling the product, and ensure that antistatic bags and packing materials with adequate padding and shock-absorbing properties are used. CC is not responsible for any damage incurred from improper packaging. Shipments should be insured for your protection. TD960801-0MC... - Page 34 Ship the product, freight prepaid, to the location from which it was purchased: Contemporary Control Systems, Inc. 2431 Curtiss Street Downers Grove, IL 60515 U.S.A. Contemporary Controls Ltd Sovereign Court Two University of Warwick Science Park Sir William Lyons Rd. Conventry CV4 7EZ U.K. TD960801-0MC...
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Page 35: Appendices Appendix A—Permissible Segment Lengths
Do consider the maximum length of the bus segment to include the cable attached to the hub ports. The -CXB transceiver requires a minimum distance between nodes. Adhere to this minimum since unreliable operation can occur. TD960801-0MC... - Page 36 This represents the minimum distance between any two nodes or between a node and a hub. May require a jumper change on the EXTEND-A-BUS to achieve this distance. Table A-1. Permissible Cable Length and Nodes Per Segment Cable RG-62/u RG-62/u 50/125 62.5/125 100/140 TD960801-0MC Connectors...
- Page 37 6 ft/2 m 1000 ft/305 m 3000 ft/915 m 6000 ft/1825 m N/A 9000 ft/2740 m N/A Max Nodes Bus Segment 5.5 dB/1000 ft max 5.5 dB/1000 ft max 4.3 dB/km max 4.3 dB/km max 4.0 dB/km max TD960801-0MC (2.5 Mbps) Notes...
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Page 38: Appendix B-Declaration Of Conformity
Immunity Standard, Part 2: Industrial Environment Manufacturer: Contemporary Control Systems, Inc. 2431 Curtiss Street Downers Grove, IL 60515 USA Authorized Representative: Contemporary Controls Ltd Sovereign Court Two University of Warwick Science Park Sir William Lyons Road Coventry CV4 7EZ UNITED KINGDOM TD960801-0MC... - Page 39 Type of Equipment: Industrial network extender Model EB/DNET-CXB EB/DNET-FOG Technical File TD960801-0FA I, the undersigned, hereby declare that the product(s) specified above conforms to the listed directives and standards. George M. Thomas, President Directive TD960801-0MC April 6, 1999...
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