IEEE 802.3cg (10SPE) – 10 Mb/s Single Pair
Ethernet meeting Industrial Automation objectives
Dr. Jörg Hähniche
Head of Development & Integration Services
Endress+Hauser Process Solutions AG
David D. Brandt
Senior Principal Engineer
Rockwell Automation, Inc.
Dayin Xu
Senior Research Engineer
Rockwell Automation, Inc.
Presented at the ODVA2017 Industry Conference & 18th Annual Meeting
February 21-23, 2017
Palm Harbor, Florida, USA
Abstract
Since the turn of the century, Industrial Automation has seen an ever increasing adoption of Ethernetbased networking and the associated IP stack. One vision is that of a single network paradigm from the
Cloud to the field devices – yielding many lifecycle benefits. Industrial Ethernet can bridge IT and OT,
being appropriate for MES, most controllers and user interfaces, and many field applications. However, anumber of practical concerns limit the utilization of Ethernet at the field edge. In particular, the 100 m
distance limitation and the high implementation cost relative to the smallest components have held backcomplete Ethernet adoption. In addition, special environment requirements such as intrinsic safety haveheld back some markets, in particular Process Automation. Currently, a variety of non-Ethernet solutions,typically buses or point to point links, augment Ethernet for a complete solution. Issues with such a mixed
system include the additional complexity of application gateways and proxies, obtaining specialized skill
in many networking technologies, and the lack of IP-related protocol convergence for IIoT and related
usage. Demand and feasibility are shown for long distance by Process Automation industry fairdemonstrations, and for low cost by continued Automotive push for innovative cost reduction techniques
beyond the established single pair architecture. In July 2016, the IEEE 802.3 authorized the “10 Mb/s
Single Twisted Pair Ethernet Study Group” (informally known as “10SPE”), kicking off the development ofa set of Ethernet enhancements aimed at closing these gaps. This paper discusses this IEEE activity andthe potential benefits to the Industrial Automation markets.

Keywords
Ethernet, IEEE 802.3, IEEE 802.3cg, 10SPE, Single-pair, Industrial Automation, Process Automation, Incabinet, Fieldbus, IEC 60079, Intrinsic Safety, NAMUR, ODVA, EtherNet/IP
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Definition of terms
Industrial Automation
NAMUR
IEEE 802.3
PHY
MAC
IP
CFI
SG
TF
PAR
CSD
Fieldbus
Industrial Ethernet
Edge
Gateway
SwitchIT
OT
MES
Purdue Model
IIoT
IEC 60079
Intrinsic safety
Zone
Division
FISCO
Point-to-point
Multi-drop
Full-duplex
Half-duplex
CAN
HART
MCU
ASIC

-

Discrete, Process, and Hybrid (Batch) Automation
Process Automation user group, Germany
Ethernet standard, including MAC and PHY definitions
PHYsical layer connecting a link layer to a physical medium
Medium Access Control layer (IEEE)
Internet Protocol
IEEE 802.3 Call For Interest
IEEE 802.3 Study GroupIEEE 802.3 Task Force
Project Authorization Request
Criteria for Standards Development
Industrial network protocol for real-time control
Fieldbus protocol operable over Ethernet
Leaf nodes attached to a network core, i.e., sensor and actuators
Network protocol converter spanning ISO model layers
IEEE 802.3 bridge, forwarding based on MAC addresses
Information Technology
Operational Technology
Manufacturing Execution Systems
Layered functional automation model
Industrial Internet of Things
Explosive atmosphere standards, including intrinsic safety
Method to allow safe equipment operation in explosive environments
Explosive environment classification, commonly EU
Explosive environment classification, US
Fieldbus Intrinsic Safety COncept
Communication link with a single device at each end
Communication link with multiple devices sharing the same link
Simultaneous communication in both direction on a link
Communication in a single direction at a time on a link
Communication protocol, Controller Area Network
Communication protocol, Highway Addressable Remote Transducer
Micro Controller Unit
Application-Specific Integrated Circuit

Trademarks
HART®, HART-IP™, and FOUNDATION™ are trademarks of the FieldComm GroupPROFIBUS, PROFINET, and IO-Link are trademarks of PROFIBUS Nutzerorganisation e.V. (PNO)
DeviceNet™, CompoNet™, and EtherNet/IP™ are trademarks of ODVA, INC.
CANOpen® is a trademark of CAN in Automation
Modbus® is a trademark of SCHNEIDER ELECTRIC USA, INC.
CC-Link and CC-Link IE are trademarks of MITSUBISHI ELECTRIC CORPORATION
AS-Interface is a trademark of Verein zur Forderung busfahiger Interfaces fur Binare Aktuatoren und
Sensoren e. V.
INTERBUS is a trademark of Phoenix Contact GmbH & Co.

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Single network (Ethernet) vision
A common industrial automation vision is that of a single network paradigm from the Cloud to the fielddevices. Industrial Ethernet with IP protocol can bridge IT and OT, being appropriate for MES, mostcontrollers and user interfaces, and many field applications.
Figure 1 illustrates one single network vision for Process Automation, as an example described in a prior
ODVA conference. Factory Automation, Automotive, and other industries share the same vision. For
Industrial Automation including Process Automation and Factory Automation, Ethernet solutions havebeen adopted and mostly satisfy the upper levels of the Purdue Model.
The question posed is whether Ethernet can ever be used for all of the process instruments at the edge inProcess Automation and whether Ethernet can ever be used for all of discrete sensors and actuators at
the edge in Factory Automation? Currently, there remains a gap. Ethernet lacks specialized capability
that is necessary to replace the fieldbuses for a large number of devices at the edge.

Figure 1: Gap in a single network vision

Added lifecycle cost of a fragmented network
A variety of non-Ethernet solutions (typically fieldbuses or point-to-point links) augment Industrial Ethernet
for a complete solution. As shown in Figure 2, Gateways are placed at the boundary. Conversions are
made at each network layer from the physical layer up to the application layer.
Numerous additional lifecycle costs are associated with systems that utilize gateways.
There are more network standards to manage, and some are obscure. One cost is associated withsourcing appropriately qualified labor. Most secondary education provides some familiarity with Ethernet
and most utilize some Ethernet within their personal life. Fieldbus knowledge is less common, and basedin geography and popularity.

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Figure 2: Gateways interconnecting Industrial Ethernet and fieldbuses

Design complexity is increased. Separate application programming is generally required. Separate tags
may be scanned between the networks and timing issues can result in interoperability issues.
Client/server protocols are often hard to pass between the networks and can result in feature loss.
Installation complexity is increased. Multiple differing cables, connectors, terminator rules, and toolingexist.
Maintenance complexity is increased, especially if a single person does not possess intimate knowledgeof both networks. Separate programs in the gateway and controller can result in consistency problems.
Certification complexity is increased.
The fieldbuses and point-to-point typically lack IP-convergence, complicating usage for modern trends in
IIoT and converged enterprise.

Partial migration to Industrial Ethernet
Until the late 1990s, industrial automation relied exclusively on non-Ethernet fieldbuses for deterministic
communication between controllers and I/O. The emergence of economical Ethernet switching enabledadequate determinism for Industrial Ethernet to emerge. Since then, there has been an escalating
adoption of Ethernet-based networking and usage of the associated IP stack.
In 2016, HMS Industrial Networks, Inc. reports that the entire Industrial Communication market is still
growing. The Fieldbus share is 58%, with 7% growth. The Ethernet share has reached 38%, with 20%
growth.
Over time, the number of fieldbus variants has grown quite large. Figure 3 shows a partial list. The
fieldbuses included entire network stacks with little overlap. Industrial Ethernet allowed the migration ofmany of the application layers – enabling an increase in common hardware and configuration concepts
for the end user.
An additional driver toward Industrial Ethernet has been the nearly complete replacement for information
purposes, including configuration and monitoring via PCs and Application Servers.
In spite of the attractiveness of Industrial Ethernet, there has only been a partial migration.
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Figure 3: Migration from Fieldbus to Industrial Ethernet

Existing Ethernet gaps at the edge
There are a variety of practical concerns that limit the utilization of Ethernet at the field edge, especiallyfor instruments in Process Automation and in-cabinet components in Factory Automation.
One concern is the distance limit of 100 m for wired Ethernet. Process Automation commonly requires
1000 m or more. Glass fiber can increase the distance, but only with increased installation and interface
complexity. Plastic Optical Fiber (POF) distance is similar to wired Ethernet. In either case, fiber does notcarry power directly.
Special environments exist at the edge and bring requirements. One example is the explosive
environment, driving a preference for intrinsically safe device and system solutions in Process
Automation.
Power distribution brings further concerns. Cable and connector size can be an issue for small
components. Single pair power and communication solutions are a benefit. Intrinsically safe power isanother specialized need.
It can also be advantageous to allow operation over legacy cables (shielded twisted pair) and connectors,
especially in Process Automation. One reason is to allow the economical substitution of fieldbus or pointto-point end nodes with Ethernet nodes. Another is to maintain current simple screw terminal installation
practice. Furthermore, some plants are in service for long periods (30 years or more) and pulling one
cable may compromise others. Finally, explosive environment common practice (FISCO) leads to ease ofdesign and certification for specific cables (IEC 61158-2).
In-cabinet components and other constrained devices in industrial have difficulty tolerating a highimplementation cost in comparison to the existing fieldbus or point-to-point solutions (often called sensor
networks). Requirements for switches or linear topologies may economically exclude the smallest
components from Ethernet.
These Ethernet deficiencies are currently addressed within the fieldbus and point-to-point solutions.
Unless Ethernet addresses these deficiencies, the single network vision for Industrial Ethernet will never
be complete. Ethernet is a “family” of solutions that can be extended within IEEE 802.3 to overcome
these gaps.

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Process Automation demand
An example Process Automation plant is shown in Figure 4.
The network installation is characterized by a high number of field devices (sensors and actuators) thatare widely separated (>1000 m) from the control room and often in explosive environments. There is
widespread usage of legacy 4-20 mA analog signals for control with the addition of HART (1200 baud
digital communication modulated on the 4-20 mA signal) for configuration and asset management
purposes. More modern Fieldbus solutions (PROFIBUS PA and FOUNDATION Fieldbus) provide 31.25
kb/s digital methods for both purposes.
A large amount of legacy cable is in place. The most common is single pair with power. Since plant life
often exceeds 30 years, cable materials may be fragile. Pulling new cables is therefore a risk. The
preferred cables are designed to ease certification for intrinsic safety. One reason for HART success isthat it preserved the installed cable base.
Based on explosive environment hazards, a plant is divided into different areas; called Zones or Divisions
depending on the local regulatory authority. The Zone (0, 1, or 2) defines the probability of hazardous
material being present in an ignitable concentration in the surrounding atmosphere. The explosive
characteristics of the air mixtures of gases, vapors, or dusts vary with the specific material involved.
Limitations must be placed on the equipment to stay below ignition temperatures and explosion
pressures.


Zone 0:Area in which an explosive gas-air mixture is continuously present orpresent for long periods.

Zone 1:

Combustible or conductive dusts are present. Area in which an explosive
gas-air mixture is likely to occur for short periods in normal operation.



Zone 2:

Area in which an explosive gas-air mixture is not likely to occur, and if it
occurs it will only exist for a very short time due to an abnormal condition.

Different protection methods are applied in the zones. The intrinsic safety method (Ex i) strictly limits
energy by appropriate protective circuit design in order to avoid any explosion in case of faults. Ex i is thepreferred method in Zone 0. The increased safety method (Ex e) is less restrictive for powering devices
and appropriate for Zone 1.

Figure 4: Example Process Automation plant2017 ODVA Industry Conference

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Process Automation has already adopted Ethernet for part of the applications.
One advantage of usage Ethernet-based solution down to the field is to provide a homogeneous networkthat requires less engineering effort for the customer. Since Information Technology (IT) is converging
into Operational Technology (OT), it becomes easier to monitor events, processes and devices and makeadjustments in enterprise and industrial operations.
Long plant life brings a push to upgrade rather than replace existing plants – a long term trend. In order tofurther improve the existing processes and to decrease downtime, information from the process and thedevice (diagnostic data) are necessary. A homogeneous network based on Ethernet technology brings
increased rates and better connectivity optimize the plant and extend its life, leveraging techniques from
Industrial Internet of Things, Big Data, Cloud, and Analytics.

Users have recently put forth the vision of standardizing on Ethernet for all of the plant.
NAMUR (Normenarbeitsgemeinschaft für Meß und Regelungstechnik in der chemischen Industrie) is aninternational user association of automation technology in the process industries. Although founded inGermany and initially focused on the chemical industry, their scope and influence has broadened. They
count 151 member companies and >2000 experts.
In 2016, NAMUR released: “Position paper An Ethernet communication system for the process industry”,
stating the single network vision of Ethernet. It is required that Ethernet meet the generic legacy
requirements of a fieldbus (NAMUR NE 74) – along with new Ethernet-specific requirements.
Protocol requirements (partial):
 Minimum application protocol requirement of IEC 61784-2 CPF2/2 (EtherNet/IP) and CPF3/5(PROFINET IO Class B) Safety, time synchronization, optional redundancy, security, IPv6…
 Simple device integration and exchange
Ethernet PHY-related requirements:
 Two-wire cable carrying communication and field device power Suitable for both explosive and non-explosive environments (intrinsic safety)o Allows FISCO or a similar (simple) certification methodology
 NE 21 EMC compatibility
 NE 74 connectors and installation
 Comparable cost to 4-20mA HART

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With a migration to Ethernet, a switched architecture (Figure 5) will be adopted. This is a transition fromthe homerun wiring of 4-20mA and from the multi-drop topology of the fieldbuses. Upgrades in themarshalling cabinets (Zone 2, near the control room), the field junction boxes (Zone 1), and the fielddevices (Zone 0) give access to cable ends for a simplified transition.

Figure 5: Ethernet-based switched system architecture

In order to reduce installation costs and cabling effort, the connection to the field is realized by a Trunkand Spurs as depicted in both Figure 5 and Figure 6. The Trunk and Spur provide sufficient bandwidth forthe communication into the field and provide the field devices with power. Ideally, the Trunk and Spurutilize single twisted pair shielded cable as described by IEC 61158-2 type A cable.

Figure 6: Trunk and Spur2017 ODVA Industry Conference

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The following Trunk and Spur requirements have broad consensus in the industry.
Trunk requirements:
 Data exchange follows the standard Ethernet 802.3 specifications
 Reach of 1000 m from a Switch located in a safe area (Zone 2) to a Field Switch that is located ina hazardous area (Zone 1)
 Maximum 10 inline connectors are required for this long distance. Heavy cable may be laid insections and joined Since the Trunk goes into the Zone 1 hazardous areas, the Trunk ports of the Switch and theField Switch, and the cable must fulfill appropriate Ex e protection requirements.
 The Switch must provide Trunk power for the underlying Field Switches and Field Devices.
Economics and application requirements dictate support of 50 field devices from one Switch,where each field device requires less than 500 mW of power.
Spur requirements:
 Data exchange should be based on the IEEE 802.3 specification
 Reach of 200 m from the Field Switch to the Field Device
 Maximum 5 inline connectors are considered to reach this distance Since the Spur goes into the Zone 0 hazardous areas, the Spur ports of the Field Switch and theField Device, and the cable must fulfill appropriate Ex i protection requirements.
 Each port of the Field Switch must provide 500 mW for a Field Device

Bringing Ethernet to all the devices, and meeting the end user vision at the edge as described by NAMUR
means filling Ethernet gaps:
 Spanning the long distances between the control room and the field devices -> more than 1000 m
and hundreds of devices
 Economical cabling and power delivery to the field -> power and communication over legacy
single pair cabling Operation in explosive atmosphere –> intrinsic safety
The IEEE 802.3 – 10SPE project objective cover the exact requirements for Process Automation.

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Automotive demand
Beginning in 2011, Automotive began a long transition to Ethernet within vehicles. The OPEN Alliance
SIG (One-Pair Ether-Net) began the standardization of single pair Ethernet at 100 Mb/s. The OPEN
specification was brought into the IEEE to become 100BASE-T1. A second complementary IEEE single
pair Ethernet standard is now also available (1000BASE-T1).
An early driver of Automotive Ethernet is the “Infotainment” application. This drives relatively high rates,
but is not a part of the critical vehicle control. Open connectivity benefits are gained from Ethernet.
Part of the justification for single pair is that the wiring harness has become one of the heaviest individualcomponents in a car. Further wiring reduction will be possible by the compatible IEEE 802.3bu 1-Pair
Power over Data Lines – combining communication and device power.
The various Ethernet enhancements are part of a larger vision. Current architectures deploy multiple
specialized and incompatible networks (analogous to the fieldbus situation) across the entire vehicle.
Figure 7 depicts an Automotive architecture based on Ethernet. There is core and an edge with routing
and computational resources between. Dramatic benefit is seen in consolidation to a single network(Ethernet). Applications that span the vehicle can then utilize virtual networks – saving cost, reducing
wiring, and adding expansion flexibility.

Figure 7: Automotive Ethernet architecture concept

Further Ethernet options are required to allow the full migration. At the high end, an IEEE group wasrecently formed to study “Multi-Gig” Ethernet to address the high rates required by devices such as radarand vision sensors required for autonomous operation and related applications.
At the edge, there are also a very large number of simple sensor and actuator devices. Many of these areserver by networks such as CAN that can meet tight cost constraints. There is a demand within
Automotive to utilize Ethernet here as well, but the Ethernet system cost must be reduced significantly.
Within Industrial Automation, in-cabinet and similar cost-constrained applications stand to benefit from an
economical Ethernet solution. Past leverage of CAN from Automotive brought supplier and part choiceand economic benefit.

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10SPE emerges to fill Ethernet edge gaps
In July 2016, the IEEE 802.3 authorized the “10 Mb/s Single Twisted Pair Ethernet Study Group”(informally known as “10SPE”), kicking off the development of a set of Ethernet enhancements aimed atclosing the gaps for Ethernet edge devices.
Participating industries included: Industrial Automation, Automotive, Building Automation and Lighting.

Abbreviated IEEE process and 10SPE status
A simplified IEEE process is shown in Figure 8.
A potential new standard activity begins with the Call For Interest (CFI). Interested parties collaborate ona presentation describing the market need and basic requirements to satisfy the need.
If there is enough interest and agreement on the value of the activity, a Study Group (SG) is formed. The
purpose of the SG is to complete 3 deliverables. The first is a Project Authorization Request (PAR) –requesting the formation of a project and describing the purpose. The second deliverable is the Criteria
for Standard Development (CSD) - answers a set of questions (i.e., whether the project is unique,whether there is broad market potential, whether it is feasible, etc.). The third deliverable is a set of
Objectives (high level requirements) that set important success criteria and bound the solution.
If the SG deliverable are completed and accepted by the SG and a set of supervising bodies, a Task
Force (TF) is formed. The purpose of the TF is to draft amendments to the base IEEE 802.3 standard.

Figure 8: Abbreviated IEEE process and 10SPE status

Figure 8 shows the 10SPE status. The CFI completed in July 2016. The 10SPE SG completed in
November 2016. The first face-to-face meeting of the TF (IEEE P802.3cg) was scheduled for January
2017. It is currently estimated that the standard will be completed during 2019.

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Simplified 10SPE Objectives
A simplified set of the 10SPE SG Objectives is shown:• Up to 2 PHYs
– One optimized for up to at least 1 km reach• Point-to-point– One optimized for up to at least 15 m reach• Expectation is a reduced system cost
• Optional multi-drop was not excluded• Operation in automotive and industrial environments (EMC, temperature)• Existing MAC interface• 10 Mb/s• Optional Auto-Negotiation• Single balanced twisted pair
• Optional power distribution over pair
• Fast startup (100 ms)• Does not preclude intrinsic safety
The Objectives were driven primarily by Industrial and Automotive concerns. Building Automation andLighting expect the objectives to be adequate for their needs to be satisfied.
A primary driver for Industrial is to achieve an extended reach (reach is the IEEE term for distance). For
Industrial, the reach is at least up to 1000 m. For Automotive, the reach is at least up to 15 m.
A primary Automotive driver is achieving a reduced system cost. This has potential applicability for incabinet and other cost constrained application in Industrial.
It was recognized that the communication channels and environments were different and optimizations for
distance and cost would yield 2 different PHYs.
Since many of the objectives are common, it is still hoped to achieve overlap and reuse.
Both expect to utilize existing MAC interfaces, providing standard interface to existing MCUs, switch
ASICs, and IP cores. An optional simple serial interface is not excluded for a low cost edge devices inAutomotive.
Both are satisfied by a 10 Mb/s rate. The target application are not currently very demanding. Process
Automation migrates from 31.25 kb/s. Future upgrade of rate is anticipated by the optional AutoNegotiation objective.
Both have the objective to operate over a single balanced twisted pair. This facilitates the reuse of some
important legacy Industrial cables. It also has the potential to reduce implementation cost and cableharness weight for Automotive. Optional power distribution over the single pair can have similar benefits.
Automotive has the larger need for fast startup of 100 ms. Industrial has some similar fast startrequirements for robot end effector tooling (500 ms).
A special need of Industrial (and in particular Process Automation) is for intrinsic safety. While the IEEE
cannot standardize an intrinsically safe PHY (only a device and system are certified), measures can betaken to assure it is possible to design an intrinsically safe device and system.
Both Industrial and Automotive will support point-to-point and full-duplex. It is however possible that acase will be made in Automotive for a multi-drop option. Reduction of the average number of interfaces
per device could be important in adequately reducing system cost.

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Implications and suggestions for ODVA
Since IEEE 802.3 – 10SPE is progressing rapidly, it is appropriate to consider related ODVA technicalactivities.
The IEEE PHY standard will set a foundation, but does not describe complete solutions. Completing thesolution requires:• Front-end circuitry, interfacing from the PHY chip to the wire, including intrinsic safety• Power on the communication channel, including intrinsic safety• Connector specification• Cable specification• Management objects• Potential multi-drop protocol enhancement• Conformance testing for multiple purposes
Complementary solutions are anticipated to emerge from industrial consortia and via related international
standards. These may be adopted to accelerate the process. Figure 9 illustrates the combination of theIEEE standard (blue) and complementary solutions (green) accelerating ODVA activities (yellow).
ODVA has already started to broaden EtherNet/IP solutions for the Process Automation market. The joint
collaboration between ODVA and NAMUR on the Optimization of Industrial Ethernet for the Process
Industry will only accelerate this progress. The Process Optimization SIG currently deals with HART
integration into the EtherNet/IP system and defining Diagnostic handling for process automation devices.
Now, the IEEE 802.3 - 10SPE activities broaden the possibilities to direct integration of process
automation devices into EtherNet/IP. This has implications for multiple SIGs within ODVA.
ODVA might also consider expanding EtherNet/IP to small industrial components and other constrained
devices at the edge of industrial automation system, to achieve a single EtherNet/IP network solution.
ODVA vendors are encouraged to start their research or development activities on the above areas for acomplete solution and are also encouraged to participate the IEEE PHY standard development by
providing requirement inputs and even technical proposals to the link segment definition, PHY design,and noise model etc.

Figure 9: Potential implications for ODVA2017 ODVA Industry Conference

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Summary
Despite ongoing Ethernet migration across automation domains, the single network vision is thwarted byexisting Ethernet limitations. The IEEE 802.3 – 10SPE project - recently established – has released theobjectives to specify and standardize a new Physical Layer to close the Ethernet gaps at the edge. A
paradigm change is likely, almost certainly in Process Automation and possibly for in-cabinet and otherconstrained components. ODVA is encouraged to enhance their specifications based on the results inorder to deliver on the single network vision and expand into the resulting new markets. ODVA vendors
are encouraged to participate in IEEE standard and ODVA specification development to realize the single
network vision.

References
NAMUR, “Position paper An Ethernet communication system for the process industry”,
http://www.namur.net/fileadmin/media_www/Dokumente/Anforderung_Ethernet-NAMUR_2016-0225_EN.pdf
IEEE 802.3 CFI, “10 Mb/s Extended Reach Single Twisted Pair Ethernet PHY”,
http://www.ieee802.org/3/cfi/0716_1/CFI_01_0716.pdf
IEEE 802.3 SG, “10SPE” (10 Mb/s Single Pair Ethernet),
http://www.ieee802.org/3/10SPE/index.htm******************************************************************************************************************************************************The ideas, opinions, and recommendations expressed herein are intended to describe concepts of the author(s) for the possible useof ODVA technologies and do not reflect the ideas, opinions, and recommendation of ODVA per se. Because ODVA technologies
may be applied in many diverse situations and in conjunction with products and systems from multiple vendors, the reader andthose responsible for specifying ODVA networks must determine for themselves the suitability and the suitability of ideas, opinions,and recommendations expressed herein for intended use. Copyright ©2017 ODVA, Inc. All rights reserved. For permission to
reproduce excerpts of this material, with appropriate attribution to the author(s), please contact ODVA on: TEL +1 734-975-8840
FAX +1 734-922-0027 EMAIL odva@odva.org WEB www.odva.org. CIP, Common Industrial Protocol, CIP Energy, CIP Motion, CIP
Safety, CIP Sync, CIP Security, CompoNet, ControlNet, DeviceNet, and EtherNet/IP are trademarks of ODVA, Inc. All othertrademarks are property of their respective owners.

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