weed instrument EOTec 2104 User manual

EOTec 2104 User Manual
Industrial Ethernet Ring Switch
April 2007
First Edition
Weed Instrument Company, Inc.
707 Jeffrey Way, P.O. Box 300
Round Rock, TX 78680-0300
USA
Tel: [phone]
Fax: [phone]
E-mail: [email protected]
Web: www.weedinstrument.com
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 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 & Conditions of Sale. Lamps, fuses, bulbs and other expendable items are expressly
excluded form 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 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 @ 2007 Weed Instrument Company, Inc.
All rights reserved.
Reproduction without permission is prohibited.
ii

Standards and Safety
The EOTec 2104 Ethernet Ring Switch from Weed Instrument has been designed to meet the
following standards.
EMI emissions – FCC part 15, ICES 003, EN55022
EMC immunity – IEC61326-1
(-40°C To +85°C)
Install the Weed Ring Switch in accordance with local and national electrical
codes.
Lightning Danger: Do not work on equipment during periods of lightning
activity.
Do not connect a telephone line into one of the Ethernet RJ45 connectors.
This product is designed to meet electrical safety and Class I, Division 2 hazardous
specifications, but is currently awaiting regulatory approvals.
Refer to the Technical Specifications section, at the end of this manual, for complete
specifications on agency approvals.
FCC Statement
This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this equipment does
cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or
more of the following measures: Reorient or relocate the receiving antenna; Increase the
separation between the equipment and receiver; Connect the equipment into an outlet on a
circuit different from that to which the receiver is connected; Consult the dealer or an
experienced radio/TV technician for help.
iii

Table of Contents
Chapter 1 Introduction........................................................1
Introducing the EOTec 2104 Ethernet Ring Switch.........................................1
Feature Overview............................................................................................3
Optional Accessories.......................................................................................4
Advanced Industrial Ethernet Capability..........................................................4
User-Friendly Configuration Tools...................................................................5
Chapter 2 EOTec 2104 Ring Switch Hardware .................6
Designed for Industrial Applications................................................................6
EOTec 2104 Ring Switch Performance...........................................................6
EOTec 2104 Ring Switch Power and Alarm Connections...............................7
OK Output Alarm (Global Alarm Relay)...........................................................8
Switch Layout..................................................................................................9
EOTec 2104 Ring Switch LEDs.....................................................................10
Ethernet and Fiber Optic Wiring....................................................................12
RJ45 Wiring Guidelines.................................................................................12
Ethernet Fiber Wiring Guidelines ..................................................................12
Chapter 3 Introducing Switch Tools................................13
Loading the EOTec 2104 Software ...............................................................13
Getting Started with EOTec 2104 Switch Tools ............................................17
Switch Configuration Using the Auto-Find Feature.......................................17
Switch Configuration Using the Manual Method...........................................18
Toolbar Buttons.............................................................................................18
Menu Commands..........................................................................................19
Creating and Saving a New Base Configuration...........................................21
Default Project File........................................................................................23
Using the Base Configuration Windows........................................................25
Switch Configuration Window – General Page.............................................26
Switch Configuration Window – Ports Page..................................................26
Configuring the Weed Ring Switch Ports.........................................26
The Port Configuration Interface......................................................27
Switch Configuration Window – Rings Page.................................................28
iv

Activating and Configuring a Ring....................................................28
What does waiting for a link loss to recover mean?.........................28
Switch Configuration Window – Port Priorities Page ....................................29
Choosing a Forwarding Policy .........................................................29
Adding Priority to Messages.............................................................29
Switch Configuration Window – Advanced Priorities Page...........................30
Customizing Tag Priority and Output Queue Assignment ...............30
Switch Configuration Window – Tag Mapping Page.....................................31
Switch Configuration Window – Mirroring Page............................................31
Performing Network Diagnostics......................................................31
Switch Configuration Window – OK Output Page.........................................32
Find All Switches Window .............................................................................33
Loading a Configuration into the Ring Switch................................................33
EOTec 2104 Switch Status Utility..................................................................34
Wink Switch Button........................................................................................34
Switch Status Window...................................................................................35
OK LED, OK Output ......................................................................................37
Power 1, Power 2..........................................................................................37
Ring Port LED................................................................................................37
Network Monitor Window...............................................................................38
Chapter 4 Ring Configurations ........................................39
Ring Setup and Operation.............................................................................39
Ring Application Tips.....................................................................................39
Why Use a Weed Ring Switch? ....................................................................40
Weed Ring Advantages over Spanning Trees and Other Schemes.............40
How a Weed Ring Operates without IP Addresses ......................................41
Configuring Rings in Your Ring Switch..........................................................41
Valid Ring Topologies....................................................................................42
Invalid Ring Topologies.................................................................................43
Unintended Rings Example...........................................................................44
Detailed Ring Examples................................................................................45
Implementing a Single Ring in a Long Distance Connection........................45
Implementing Two Rings with the EOTec 2104 Ring Switch........................48
v

Chapter 5 Advanced Features of Switch Tools..............52
Copying a Base Configuration.......................................................................52
Output to File Window...................................................................................53
Updating Weed Ring Switch Firmware..........................................................54
If You Have Trouble Upgrading Firmware.....................................................54
Recovering an EOTec 2104 Ring Switch......................................................55
Prioritizing Your Network Traffic....................................................................55
Selecting a Priority Level...............................................................................56
Assigning Priority Tags..................................................................................56
Removing Priority Tags.................................................................................56
Port Priority Queues......................................................................................56
IP ToS Priority Example ................................................................................57
802.1p Priority ...............................................................................................58
Remote Status Monitoring.............................................................................58
Monitoring the Status of EOTec 2104 Ethernet Ring Switches.....................58
Modbus Options Window...............................................................................60
IP Address.....................................................................................................60
Network ID........................................................................................60
Host ID..............................................................................................60
Subnet Mask..................................................................................................60
Default Gateway............................................................................................62
Modbus Monitor Poll Time.............................................................................62
Modbus Diagnostics Example.......................................................................63
Scenario 1: No Breaks ..................................................................................63
Scenario 2: A Network Break........................................................................64
Chapter 6 Default Settings ...............................................65
Default Settings.............................................................................................65
Ring Ports......................................................................................................65
Port Configuration (all ports) .........................................................................65
Broadcast Limit..............................................................................................65
Port Mirroring.................................................................................................65
Priority Queuing.............................................................................................65
IEEE Tagging ................................................................................................66
vi

Chapter 7 General Features and Capabilities.................67
Ring Algorithm and Performance ..................................................................67
Master Switch Selection................................................................................67
EOTec 2104 Switch Tools.............................................................................68
Port Configuration..........................................................................................68
Fault Tolerant Rings......................................................................................68
General Features and Capabilities................................................................68
10BaseT and 100BaseTX Auto-detection.....................................................68
100BaseFX (Multimode and Single-mode) Fiber Optic Port.........................69
2K MAC Addresses with Automatic Learning, Aging, and Migration............69
3.2 Gbps Bandwidth......................................................................................69
Auto-crossover (Auto-MDI/MDIX) .................................................................69
Auto-polarity ..................................................................................................69
Automatic Power Saving...............................................................................69
Auto-sensing Speed and Flow Control..........................................................69
Backplane......................................................................................................69
Broadcast Storm Protection ..........................................................................70
Buffering........................................................................................................70
Flow Control ..................................................................................................70
Forwarding.....................................................................................................70
Full / Half Duplex Operation..........................................................................70
Illegal Frames................................................................................................70
IEEE 802.3 Compliant...................................................................................70
Latency..........................................................................................................70
Non-blocking..................................................................................................70
Port Mirroring.................................................................................................71
Plug and Play ................................................................................................71
Priority Queuing or Traffic Prioritization ........................................................71
Protocol Independent....................................................................................71
Appendix A Technical Specifications.................................72
Appendix B EOTec 2104 Product Series............................75
Appendix C Service Information.........................................76
Technical Support and Service......................................................................76
Index ........................................................................................77
vii

EOTec 2104 User Manual Introduction
1
Introduction
This manual describes how to use the EOTec 2104 Ethernet Ring Switch, an intelligent
Ethernet device switch specially designed for connecting Ethernet-enabled devices in
industrial field applications.
Ethernet is swiftly being adopted by the industrial automation and control industry.
Industrial applications often demand rugged, robust equipment that can provide high
reliability in settings far removed from a comfortable, climate-controlled office
environment. In addition, Ethernet gives the advantage of widespread usage and lower
costs due to high volumes.
Industrial Ethernet devices attached to a network usually cannot tell what is happening
elsewhere on the system. As a result, the responsibility for monitoring the network must
fall on the Ethernet communication equipment that connects these devices. Real-time
alarm messages are a vital feature to inform system administrators and operators when
a problem exists on the network.
Introducing the EOTec 2104 Ethernet Ring Switch
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. Another benefit is
the ability to achieve media redundancy without incurring the cost of duplicate hardware
systems. By using the Weed Instrument Self-Healing Ring solution, a critical system can
achieve uninterrupted communications, even in the event of a failure in the fiber optic
communication lines.
1

EOTec 2104 User Manual Introduction
The EOTec 2104 Ethernet Ring Switch is designed to give reliable operation in harsh
industrial environments. The product includes software to control maintenance and
monitoring of sophisticated networks. The ring switch can be used right out of the box
without configuration; or through some simple configuration steps, you can enable some
powerful managed switch features such as priority queuing for prioritizing your traffic,
message rate filtering for broadcast storm protection, and port mirroring for diagnostics.
In the Weed Ring Switch, messages are intelligently routed for the sake of increasing the
efficiency and reliability of your network. Unlike an Ethernet hub, the ring switch forwards
packets to specific ports to reduce unnecessary traffic on network paths, thus optimizing
network efficiency.
You can use the Weed Ring Switch in traditional star or daisy-chain topologies, or you
can use a ring topology that can take advantage of network path redundancy.
Ring topology is important in path redundancy because no matter where in the ring that
a path gets cut, all devices connected to a node in the ring can still communicate with
each other. In the following diagram, if the active path between two switches is disabled,
the backup path immediately takes over to maintain the integrity of your network.
2

EOTec 2104 User Manual Introduction
Do not use conventional switches and hubs in a ring topology.
Conventional switches and hubs cannot be used in ring topologies because of broadcast
storms. Broadcast storms can bring a network to a stop if conventional switches or hubs
are being used in a ring topology because of broadcast message reproduction. Using
Weed Ring Switches in the loop will prevent broadcast storms because they have the
intelligence to detect loops and to assign the necessary ports to be in the backup
(disabled) state. These backup ports are instantly enabled if the primary path in their
respective ring fails.
Feature Overview
The EOTec 2104 Ethernet Ring Switch supports both 10BaseT (10 Mbps) and
100BaseTX (100 Mbps) on its RJ45 ports. Each of these ports independently auto-
senses the speed, allowing you to interface to either regular or fast Ethernet devices. All
models also have 100BaseFX (100 Mbps) fiber optic ports. Various EOTec 2104 models
support maximum fiber optic cable lengths from 2 km to 60 km. Appendix B, EOTec
2104 Product Series, includes more information on the different models.
An EOTec 2104 Ethernet Ring Switch has all the networking capability of a typical
unmanaged switch plus some advanced capability that you would find only in a
managed switch, including ring functionality. Like an unmanaged switch, the Weed Ring
Switch is plug and play, meaning that it can be used right out of the box without any user
configuration. This includes the ring functionality, which is already pre-configured in the
switch. This is suitable for most applications.
For advanced applications, you can use the EOTec 2104 Switch Tools (a Windows
software utility) to enable some advanced capabilities such as priority queuing for
prioritizing your traffic, message rate filtering for broadcast storm protection, and port
mirroring for diagnostics.
Important Note:Only use Weed Ring Switches when connecting switches in a ring.
Weed Ring Switches use a specialized high-speed ring algorithm that only they can
recognize. Otherwise, these ring switches are fully IEEE 802.3 compatible.
3