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http//www.industrial-networking.com
Presents
Balancing demands of Corporate IT with the
reality of Industrial Ethernet
Sponsored by
http//www.schneider-electric.com
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Welcome

• Welcome message by Geoff Hodgkinson
• Founder Principal of GGH Marketing
  Communications
  
• Publisher of the Industrial Ethernet Book magazine

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Format

• Questions can be submitted using the Ask a
  Question tool at the bottom right of your
  screen
  
• Questions must be submitted before the
  presentation concludes and can be submitted at
  any time, as many different questions as you
  like
• Three questions will be selected. Those asking
  the selected questions will receive a 1 GB iPod
  Shuffle MP3 player
  

Questions Answers dialogue box
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Agenda

• Key differences between IT systems and Industrial
  Ethernet
  
• Making choices for design, switches and tools
• IT recommendation or Industrial Ethernet?
• Troubleshooting
• How IT and Industrial approaches differ
• Choosing a solution
• Balancing the IT solution versus Industrial
  solutions
  
• Industrial Ethernet and IT are encroaching on
  each other
  
• Working together
• Logos represent IT and Industrial differences

IT
Industry
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Key Differences
Between IT and Industrial Ethernet

• Communications Design
• Troubleshooting Maintenance
• Skill requirements

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Communications Flow
IT Network Example
MORE CRITICAL DEVICES AT CORE

• IT comms flow edge to core
• Redundancy is focused at the core
• Edge devices are considered less critical
• Comms port density drive network design
• Design is Hierarchical

Utilization Redundancy
Port Density
LESS CRITICAL DEVICES AT EDGE
Edge devices are end devices like PCs Printers
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Communications Flow
Industrial Network Example
ALL DEVICES ARE CRITICAL
Industrial communications are peer-to-peer
Redundancy is distributed towards the edge
Edge devices are more critical
Layout and distance drives the network design
Design port density is distributed
Programming
SCADA
PLC
PLC
Physical Ring Logical Bus
1 km
HMI
HMI
Power Monitoring
Distributed I/O
Comms Redundancy
Edge devices are end devices like
PLCs, Drives, HMIs, PCs, gateways
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IT Design
Standard Practices

• Edge switches within 90 meters of end devices
• UTP cabling or Multi-mode fiber. Single Mode
  fiber seldom used
  
• Spanning Tree or Rapid Spanning Tree protocol in
  a mesh for core switches but seldom for edge
  switches
  
• Closets with climate control for switch
  locations
  
• Redundant power supplies for core switches only
• Standard AC plug with ground
• IT systems less likely to encounter EMI/RFI

Standard IT method for locating switches
Access/Distribution closets are located by
drawing overlapping circles with a 90 meter
radius 10 meters for patch cables (2)
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Industrial Design
Design Driven by Process

• Switches can be widely distributed
• UTP, STP, multi-mode and single-mode fiber used
• Redundant ring recover much faster than RSTP
• Suited for harsh environment
• Redundant power on all switches
• Chassis grounding
• EMI/RFI resistant

3km SINGLE-MODE FIBER
Redundant Ring
SHIELDED COPPER
2km MULTI MODE FIBER
I/O Devices
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Maintenance Troubleshooting
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Troubleshooting
Understanding the Differences

• Business
• Edge (end) devices not treated as critical items
• Resolution time up to 48 hours
• Devices require troubleshooting by skilled
  resources
  

Industrial All devices are treated as critical R
esolution time is 1-4 hours Devices designed for
troubleshooting by maintenance

X
Failure of an Industrial edge device
Failure of a Business edge device
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Troubleshooting Solutions
IT Solutions

• Core Systems
• Network Management Systems
• Monitors core devices only
• Complex monitoring tools
• No automation information
• Operated by highly trained personnel
• Edge Systems
• Low priority for end devices
• No active monitoring
• Help Desk resources for end devices

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Troubleshooting Solutions
Industrial Solutions

• All systems
• Industrial Ethernet Diagnostics
• Simple monitoring tools
• Switch fault signal contact for
• SCADA/HMI
• PLC application
• Performed by Maintenance Engineering
• High priority for all devices
• Maintenance performs basic troubleshooting
• Engineering handles more complex troubleshooting

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Troubleshooting
Responders

• IT Systems
• Help Desk receives and queues the call
• Second Third level support may be required
• On call resources may be limited or distant
• Industrial Systems
• Maintenance responds
• Basic troubleshooting skills required
• Device replacement may require only a screwdriver

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Troubleshooting
Maintenance Skills Tools

• Basic network troubleshooting tools and skills
• Use Industrial Ethernet Diagnostic software
• Using embedded web diagnostics
• Interpret device and switch LEDs
• Using a media test device (Fluke or equivalent)
• Cable termination skills Tools
• Access to replacement switches
• Documentation of network devices and cable
  labeling
  

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Choosing a Solution
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Making a Choice
IT System or Industrial Ethernet?
?
?
Versus
Or

• Consider the cost of downtime to troubleshoot or
  replace a switch with each solution choice
  
• Choose Industrial Ethernet switches if
• Environment is harsh (heat, EMC, moisture)
• Sub-second network recovery time is required
• End device port density is distributed
• Single mode fiber is required
• Simplified maintenance and configuration is
  desired for speedy problem resolution
  

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Choosing IT
IT Systems for Industry
Ensure that IT treats any problem in the plant
with the highest priority Restrict access to the
plant network to authorized IT users to prevent
accidental changes Include 24x7 access to knowled
geable resources with alternate contacts
Insist on protection between the IT office
network and the industrial Ethernet network
Subnetting for Broadcast protection
Access control through a router or firewall
Communicate changes and upgrade plans
Obtain from IT A configured, hot spare replacem
ent switch Configuration file backups Plan respo
nse actions in advance
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Choosing IT
Building your Network with IT

• Test recovery and re-convergence time of
  redundant systems such as Rapid Spanning Tree
  
• Establish rules on IP address allocation
• Use caution with DHCP, DHCP Relay Option 82
• Clearly explain Industrial requirements
• If requirements are misunderstood by IT,
  technologies such as VLANs or Access Control can
  create problems
  
• Have all switch configurations documented and
  backed up
  
• Label all cable terminations, patch panels and
  document switch port connections
  
• Have IT review patch panels and cabling with
  maintenance
  

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Conclusion

• As Industrial Ethernet grows in adoption, IT may
  be involved in the plant network
  
• It is possible to have dual autonomy
• IT and plant network is connected, but each with
  its own architecture and infrastructure
  
• There are considerable benefits to connecting
• Consider separate, connected compromise options
• Communication and cooperation are key to any
  successful relationship
  
• Work together on projects
• Introduces key individuals
• Fosters mutual understanding of process
  equipment

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Let us Hear From You
5 Questions

• We will present 5 poll questions while we select
  the 3 question winners
  
• Please take a few moments to register your vote
  on each of the poll slide questions which will
  appear after this slide
  
• Should you prefer an alternate answer to the poll
  answer choices, use the Questions Answers
  dialog box
  

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Question Contest

• Answers to 3 selected questions asked during the
  presentation
  
• All participants can download a free Ethernet
  Diagnostic software tool at http//www.connexview.
  com
  
• Automatic Discovery with built-in Network
  Assistant
  
• Fully functional 21 day demo
• Create your own device types for any managed
  device with custom graphics and private MIB
  support
  
• For a free Diagnostic Tool CD, send an email to
  michael.roche_at_us.schneider-electric.com, subject
  IEB Webinar
  

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Thank You for your Time!