.Rev 5058-CO900E

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Industrial Automation Ethernet UsageDavid Brandt

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Industrial Automation Characteristics A large portion of the Discrete Control & Visualization and associated Motor

Control Equipment is concentrated in machines and is of relatively short distance (40m) and benefits from high performance (100Mb/s -> 1Gb/s)

Certain important Process Control and Instrumentation applications require very long distances (1000m) and have relatively low performance requirements

Source: IHS, The World Market for Industrial Ethernet & Fieldbus Technologies – 2013 Edition

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Factory Automation Modules

Work cells

Conveyors

ControlCabinets

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In-cabinet cabling relationship toOn-machine cabling

In-cabinetIP20

RJ45 Ethernet

On-machineIP67

M12 Ethernet

Segment Segment

BulkheadAdapter

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In-cabinet

Dense node packing

Very short segments

Linear or Ring configuration of dual-port nodes

Cable lengths rarely > 15m

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On-machine

Work Cells

Nodes spread to best physical position

Somewhat bigger than the product

i.e., an Automobile

Linear or Ring configuration of dual-

port nodes

Cable lengths rarely > 40m

Conveyors

Nodes distributed along length

Often modular

i.e., 3m sections

Linear or Ring configuration of dual-port nodes

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RJ45 cable length distribution estimate(pre-made, single vendor)

Most RJ45 is in-cabinet

The bulk is less than 15m

0.0%

5.0%

10.0%

15.0%

20.0%

25.0%

30.0%

35.0%

40.0%

45.0%

"0-1m" "1-2m" "2-5m" "5-15m" "15-40m" "40-100m"

RJ45 Ethernet Cable Length Distribution

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M12 cable length distribution estimate (pre-made, single vendor)

All M12 is on-machine

The bulk is less than 25m

0.0%

5.0%

10.0%

15.0%

20.0%

25.0%

30.0%

"0-1m" "1-2m" "2-5m" "5-15m" "15-25m" "25-40m" "40-100m"

M12 Ethernet Cable Length Distribution

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Useful minimum distance for Factory Automation

In-cabinetOn-machine

Segment Segment

In-lineConnector

15m 25m

40m channel

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Process Automation “Skids”

Many Process Automation skids are reasonably small

On-machine requirements apply

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Large Process Automation Applications

Nodes spread over large site

Star topologies

Legacy cable runs

1000m

4-20mA -> Fieldbus -> Ethernet?

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Additional application coverage via hybrid systems

Selectively extend distance with reduced rate for greater

application coverage

Minimize media converters

1000mCFI?

??m802.1bw

15m/40m

802.1bp

Auto-negotiation

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Power

Industrial Automation nodes require power

Various applications will benefit from two strategies

1 pair Ethernet within a “harness” that includes power

24VDC is common

1 pair Ethernet + PoDL

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TR42.9 motion to adopt 1000BASE-T1

Telecommunications Industry Association (TIA)

Industrial Telecommunications Infrastructure

Motion [passed]: Add to February agenda as new business the following:

Create a new project request for an addendum to ANSI/TIA-1005-A-2012

to add;

1G industrial cabling for one pair Type B (40 meters) (1000BASE-

T1) for E2 and E3 environments,

1G industrial cabling for four pair (100 meters) (1000BASE-T) for E2

and E3 environments.

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Conclusions

Major segments within Industrial Automation will benefit from the 40m

optional channel length

Factory Automation

In-cabinet

On-machine

Process Automation

Skids

An important portion of Process Automation applications are not met

except with much greater length

A CFI is likely for an additional 1-pair Ethernet to meet these

application needs

Auto-negotiation extends the benefits of the individual 1-pair standards