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.Rev 5058-CO900E
PUBLIC INFORMATION
Industrial Automation Ethernet UsageDavid Brandt
PUBLIC INFORMATION
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
PUBLIC INFORMATION
Factory Automation Modules
Work cells
Conveyors
ControlCabinets
PUBLIC INFORMATION
In-cabinet cabling relationship toOn-machine cabling
In-cabinetIP20
RJ45 Ethernet
On-machineIP67
M12 Ethernet
Segment Segment
BulkheadAdapter
PUBLIC INFORMATION
In-cabinet
Dense node packing
Very short segments
Linear or Ring configuration of dual-port nodes
Cable lengths rarely > 15m
PUBLIC INFORMATION
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
PUBLIC INFORMATION
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
PUBLIC INFORMATION
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
PUBLIC INFORMATION
Useful minimum distance for Factory Automation
In-cabinetOn-machine
Segment Segment
In-lineConnector
15m 25m
40m channel
PUBLIC INFORMATION
Process Automation “Skids”
Many Process Automation skids are reasonably small
On-machine requirements apply
PUBLIC INFORMATION
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
PUBLIC INFORMATION
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
PUBLIC INFORMATION
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.
PUBLIC INFORMATION
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
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