IEEE 802.3cg (10SPE) – 10 Mb/s Single Pair Ethernet meeting
Industrial Automation objectives
Dr. Jörg Hähniche: Endress+Hauser Process Solutions AGDavid D. Brandt: Rockwell Automation, Inc.
Dayin Xu: Rockwell Automation, Inc.
February 22, 2017

Trademarks••••••••

HART®, HART-IP™, and FOUNDATION™ are trademarks of the FieldComm
Group
PROFIBUS, 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 AutomationModbus® is a trademark of SCHNEIDER ELECTRIC USA, INC.
CC-Link and CC-Link IE are trademarks of MITSUBISHI ELECTRICCORPORATION
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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Agenda•Single Network (Ethernet) Vision– Added lifecycle cost of a fragmented network– Partial Migration to Industrial Ethernet– Existing Ethernet gaps at the edge

•Industrial demands– Process Automation demand– Automotive demand•IEEE 802.3cg (10SPE)––––•

10SPE emerges to fill Ethernet edge gaps
Abbreviated IEEE process and 10SPE status
Simplified 10SPE Objectives
Implications and suggestions for ODVA

SummaryTechnical Track© 2017 ODVA, Inc.

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Single network (Ethernet) vision•One vision is that of a single
network paradigm from the
Cloud to the field devices•Industrial Ethernet canbridge IT and OT, being
appropriate for MES, mostcontrollers and userinterfaces, and many field
applications
Ethernet Gaps at the ‘Edge’

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Adapted from: Dr. Raimund Sommer, Endress+Hauser, ODVA Industry Conference, Oct. 2014.

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4Added lifecycle cost of a fragmented network•

A variety of non-Ethernet solutions(typically buses or point to point links)
augment Ethernet for a completesolution•

Lifecycle costs:––––––––

Sourcing appropriately qualifiedlabor
Design complexity
Installation complexity
Maintenance complexityInteroperability issues and featureloss
More standards
Certification complexity
Complex IP-convergence for IIoT
and related usage

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The gap at the edge iscommonly filled byapplication-specificGateways
Industrial Ethernet
Variant

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Fieldbus Variant 1

Fieldbus Variant n

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5Partial migration to Industrial Ethernet•Since the turn of the century,
Industrial Automation has seen an
ever increasing adoption ofEthernet-based networking andthe associated IP stack•HMS Industrial Networks, Inc. reports (2016)– Entire market is growing– Fieldbus share = 58%•– Ethernet share = 38%•Fieldbus VariantsTechnical Track© 2017 ODVA, Inc.

7% growth

OnlyPartialMigration

20% growth

Industrial Ethernet
Variant

FOUNDATION
H1

PROFIBUS
DP

PROFIBUS PA

DeviceNet

HART

CANOpen

FOUNDATION HSE

IO-Link

ModbusModbus TCP/IP

CompoNet

CC-Link

HART-IP

AS-Interface

INTERBUS

CC-Link IE

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EtherNet/IP
PROFINET

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Partial lists…

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Existing Ethernet gaps at the edge
•A variety of practical concerns
limit the utilization of Ethernet atthe field edge•••

The Ethernet “family” could be
extended within IEEE 802.3 toovercome these gaps•••

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Limited distance of 100 m forwires (fiber has additionalchallenges)
Special environment requirements
such as intrinsic safety (ProcessAutomation)
Power distribution concerns
Operation over legacy cables andconnectors
High implementation cost relative
to the smallest components
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Process Automation user demandProcess Automation users aredemanding Ethernet edge solutions



NAMUR: User Association ofAutomation Technology in ProcessIndustries







Ethernet to the instruments (edge)means filling many gaps


http://www.namur.net/en/home.html
Member companies: 135
Experts in member companies:
2000

Long distance > 1000 m
Intrinsic Safety requirement
Legacy single pair cables
Communication + power“Position paper An Ethernet
communication system for theprocess industry”


http://www.namur.net/fileadmin/media_www/Dokumente/Anforderung_Et
hernet-NAMUR_2016-02-25_EN.pdf

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Process Automation topology

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9Process Automation requirements•

IEC61158 type A fieldbus cable with shield–•

Single pair communication + power

Intrinsically Safe communication and device power–Low and high power devices 500mW up to 5 W•PHY: 10 Mb/s, full-duplex, Auto-Negotiation (support for future extension of transmission speed 100 Mb/s)•Extended reach: Cable length 1000 m for Trunk with max. 5..10 connectors, 200 m for Spur with max. 5 connectors

Trunk max. 1000m,max. 5…10 connectors

Spur max. 200m,max. 5 connectors

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10Automotive demand•

Automotive is demanding Ethernetedge solutions•

A transition to Ethernet is underway

Target is 50% of 100BASE-T1
system cost, addressing anothergap– 1000BASE-T1– 100BASE-T1•

A converged network is desired– Independence of physical and logicalnetwork– Reduction in number of In-Vehicle
Network (IVN) technologies• MOST / FlexRay / LIN / …

– Reduction of multiple gateways
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ECU: Electronic Control Unit
CCP: Central Computing Platforms

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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 thedevelopment of a set of Ethernet enhancements aimed at closing the gaps foredge devices•

Participating industries:––––

Industrial Automation
Automotive
Building AutomationLighting

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12Abbreviated IEEE process and 10SPE status•

Call For Interest (CFI)– Complete in March-July, authorized a “Study Group”– “10 Mb/s Single Twisted Pair Ethernet ”••

http://www.ieee802.org/3/cfi/0716_1/CFI_01_0716.pdf

Study Group (SG) progress

CFIComplete

Study
Group

Complete

Task ForceJan. 2017– Named “10SPE” (10 Mb/s Single Pair Ethernet)•

http://www.ieee802.org/3/10SPE/index.html– SG deliverables (complete in November):••••

Project Authorization Request (PAR)
Criteria for Standard Development (CSD)
Objectives (high level requirements)

Approvals

Task Force (TF) is the next step (IEEE P802.3cg)– Weekly teleconferences and face-to-face meetings– Draft amendments to the 802.3 standard

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2019 (est.)

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Simplified 10SPE objectives•

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 the single pair
Fast startup (100 ms)
Does not preclude intrinsic safety

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Implications and suggestions for ODVA•

Affected areas:––•Direct integration of Process Automation devices
Reduced overhead for in-cabinet and otherconstrained devices

The IEEE PHY standard will set a foundation,
but requires extension:––––––

Front-end circuitry, interfacing from the PHY chip tothe wire, including intrinsic safety
Power on the communication channel, including
intrinsic safety
Connector and cable specification
Management objects
Potential multi-drop protocol enhancement
Conformance testing for multiple purposes•

Multiple SIGs are likely affected•

Leverage of other effort is possible

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Summary•••••

Despite ongoing Ethernet migration across automation domains, the single
network vision is thwarted by existing Ethernet limitations
IEEE 802.3 – 10 SPE project - recently established – has released theobjectives to specify and standardize a new Physical Layer to close theEthernet gaps at the edge
Paradigm change is likely, almost certainly in Process Automation andpossibly for in-cabinet and other constrained 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

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THANK YOU