Gary Marret, RCDD

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• Gary Marret, RCDD

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• WHAT IS ETHERNET?
• WHAT IS ETHERNET/IP?
• ETHERNET HARDWARE?
• HOW DO I CABLE FOR INDUSTRIAL ETHERNET?

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WHAT IS ETHERNET?

• ETHERNET history
• developed in 1973 as shared medium
• bandwidth 10 Mbps
• bus topology
• CSMA/CD procedure for media access

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OLD ETHERNET NOT DETERMINISTIC

• NOT CHOSEN FOR FACTORY NETWORKS, LACKED
  DETERMINISM
• DETERMINISM ABILITY TO PREDICT
• ETHERNET WAS BASED ON SHARED BACK BONE AND HALF
  DUPLEX
• FAST ETHERNET DEVELOPED

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FAST ETHERNET

• ETHERNET today
• scalable bandwidth with 10/100/1000 Mbps
• switched Full Duplex connection without
  collisions
• IEEE standards for prioritization and flow
  control
• standards for Copper, Fiber, Plastic, and
  Wireless transmission

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WHAT IS ETHERNET/IP?

• IP INDUSTRIAL PROTOCOL
• OPEN STANDARD FOR INDUSTRIAL NETWORKS
• USES STANDARD ETHERNET AS A BASE
• ADDS AN APPLICATION PROTOCOL FOR FACTORY
  AUTOMATION

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ETHERNET HARDWARE

• TRANSCEIVER
• MEDIA CONVERTER
• HUB
• SWITCH
• ROUTER
• GATEWAY

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TRANSCEIVERS

• CONNECT NETWORK MEDIA TO AUI PORT ON EQUIPMENT
  (15 PIN DSUB)
• 10BASE-FL
• 10BASE-T
• 10BASE-2

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MEDIA CONVERTERS

• 10/100 MEDIA CONVERTERS
• GIGABIT MEDIA CONVERTERS
• FIBER OPTIC MEDIA CONVERTERS
• SERIAL DATA MEDIA CONVERTERS

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HUBS

• SHARE ONE COMMUNICATIOS CHANNEL FOR ALL DEVICES
  CONNECTED TO IT.
• REGENERATES INCOMING DATA AND DISTRIBUTES IT TO
  ALL PORTS
• CSMA/CD
• LAYER 1 OF THE OSI MODEL

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SWITCHES

• ALWAYS USE FOR INDUSTRIAL APPLICATIONS
• REGENERATES INCOMING DATA AND DISTRIBUTES IT ONLY
  TO THE DEVICE ITS INTENDED FOR
• PROVIDES POINT-TO-POINT CONNECTION BETWEEN DEVICES

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ROUTERS

• INTERCONNECTS NETWORKS WITH DIFFERENT LAYER 3
  PROTOCOLS
• COMBINATION OF HARDWARE AND SOFTWARE
• CONTROLS TRAFFIC BETWEEN NETWORKS

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GATEWAYS

• A ROUTER CONVERTS PROTOCOLS AND ENABLES DATA
  EXCHANGE BETWEEN NETWORKS

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Evolving Factory Network
Back-Office Mainframes and Servers (ERP, MES,
CAPP, PDM, etc.)
Corporate IT Network
Office Applications, Internetworking, Data
Servers, Storage
Central NMS
Pager
Programmable Logic Controllers (PLC)
PC Based Controllers
Human Machine Interface (HMI)
Motors, Drives, Actuators
Device Level Network
Sensors and other Input/Output Devices
Robotics
Ethernet
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VLANs

• VIRTUAL LOCAL AREA NETWORK
• GROUPING OF DEVICES ON A SWITCH OR MULTIPLE
  SWITCHES ON A PHYSICAL LAN
• PORT BASED VLANs
• PORT AND MAC ADDRESSED VLANs
• NETWORK ADREESED VLANs
• PROTOCOL BASED VLANs

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QoS

• MANAGES NETWORK TRAFFIC
• QoS CAN BE A COMBINED EFFORT OF ROUTERS,
  SWITCHES, STATIONS, AND SERVERS

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Quality of Service (QoS)
Data Collection
Mission-Critical (Control)
Back Office
Configuration (File Transfer)
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HOW DO I CABLE FOR INDUSTRIAL ETHERNET?

• ANSI/TIA/EIA-568-B.2 COMMERCIAL BUILDING
  STANDARDS FOR BALANCED TWISTED PAIR
• ANSI/TIA/EIA-568-B.3 STANDARDS FOR OPTICAL FIBER
  CABLING COMPONENTS
• ANSI/TIA/EIA-569-A COMMERCIAL BUILDING STANDARDS
  FOR PATHWAY AND SPACES

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CABLING TOPOLOGY

• STAR TOPOLOGY
• HIERARCHICAL STAR TOPOLGY

WS
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TR
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IC
TR
MC
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RECOGNIZED HORIZONTAL CABLE TYPES

• FOUR-PAIR 100 OHM BALANCED TWISTED PAIR - UTP or
  ScTP
• TWO OR MORE STRANDS OF 50/125um OR 62.5/125um
  MULTIMODE OPTICAL FIBER CABLE

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HORIZONTAL CABLING DISTANCES

• 90 METER (295) MAXIMUM FROM THE PATCH PANEL TO
  THE OUTLET/CONNECTOR
• 5 METER (16) MAXIMUM FROM OUTLET TO DEVICE
• 10 METER (33) MAXIMUM FOR THE TOTAL COMBINED
  LENGTH OF PATCH CORDS

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UTP or ScTP?

• USE MINIMUM CAT5e UTP OR ScTP
• GROUND LOOP CONCERNS WITH ScTP
• MAXIMUM 1V rms BETWEEN SHIELD AND EQUIPMENT
  GROUND WIRE AT OUTLET
• GROUND AT PATCH PANEL ONLY
• OPTICAL FIBER IS BEST FOR NOISE IMMUNITY

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INSTALLATION PRACTICES

• Remove as little as possible of the jacket up to
  the connector
• Maintain twist up to the termination under .5

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INSTALLATION PRACTICES

• AVOID EMI RFI
• SUPPORT CABLE
• USE CABLE TRAY
• USE INNERDUCT
• ADHERE TO CABLE MANUFACTURER SPECIFICATIONS
• LABEL, LABEL, LABEL

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RECOGNIZED BACKBONE CABLE TYPES

• 100 OHM BALANCED TWISTED PAIR
• 50/125um OR 62.5/125um OPTICAL FIBER CABLE
• SINGLEMODE OPTICAL FIBER CABLE

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BACKBONE CABLING DISTANCE

• DETERMINED BY DATA RATE, BANDWIDTH, AND MEDIA
  TYPE
• UTP/ScTP CAT5e CANNOT EXCEED 90 METERS FOR
  ETHERNET BACKBONES

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RESOURCES

• www.cisco.com
• www.commscope.com
• www.hellermann.tyton.com
• www.hirschmann.com
• www.levitonvoicedata.com
• www.panduit.com
• www.signamax.com
• www.unicomlink.com
• http//ethernet.industrial-networking.com

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QUESTIONS?