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Transcript
Gary Marret, RCDD • WHAT IS ETHERNET? • WHAT IS ETHERNET/IP? • ETHERNET HARDWARE? • HOW DO I CABLE FOR INDUSTRIAL ETHERNET? WHAT IS ETHERNET? • ETHERNET history – – – – developed in 1973 as shared medium bandwidth 10 Mbps bus topology CSMA/CD procedure for media access 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 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 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 ETHERNET HARDWARE • TRANSCEIVER • MEDIA CONVERTER • HUB • SWITCH • ROUTER • GATEWAY TRANSCEIVERS • CONNECT NETWORK MEDIA TO AUI PORT ON EQUIPMENT (15 PIN DSUB) • 10BASE-FL • 10BASE-T • 10BASE-2 MEDIA CONVERTERS • • • • 10/100 MEDIA CONVERTERS GIGABIT MEDIA CONVERTERS FIBER OPTIC MEDIA CONVERTERS SERIAL DATA MEDIA CONVERTERS 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 SWITCHES • ALWAYS USE FOR INDUSTRIAL APPLICATIONS • REGENERATES INCOMING DATA AND DISTRIBUTES IT ONLY TO THE DEVICE IT’S INTENDED FOR • PROVIDES POINT-TO-POINT CONNECTION BETWEEN DEVICES ROUTERS • INTERCONNECTS NETWORKS WITH DIFFERENT LAYER 3 PROTOCOLS • COMBINATION OF HARDWARE AND SOFTWARE • CONTROLS TRAFFIC BETWEEN NETWORKS GATEWAYS • A ROUTER CONVERTS PROTOCOLS AND ENABLES DATA EXCHANGE BETWEEN NETWORKS Evolving Factory Network Back-Office Mainframes and Servers (ERP, MES, CAPP, PDM, etc.) Corporate IT Network Office Applications, Internetworking, Data Servers, Storage Central NMS Video Feed Pager Programmable Logic Controllers (PLC) PC Based Controllers Wireless Human Machine Interface (HMI) Video Apps Scanner Handheld Robotics Sensors and other Input/Output Devices Motors, Drives, Actuators Device Level Network Ethernet 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 QoS • MANAGES NETWORK TRAFFIC • QoS CAN BE A COMBINED EFFORT OF ROUTERS, SWITCHES, STATIONS, AND SERVERS Quality of Service (QoS) Data Collection Mission-Critical (Control) Back Office Configuration (File Transfer) 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 CABLING TOPOLOGY • STAR TOPOLOGY • HIERARCHICAL STAR TOPOLGY WS WS WS WS WS WS TR WS IC TR WS MC WS WS WS WS TR 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 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 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 INSTALLATION PRACTICES • Remove as little as possible of the jacket up to • the connector Maintain twist up to the termination – under .5” INSTALLATION PRACTICES • AVOID EMI RFI • SUPPORT CABLE • USE CABLE TRAY • USE INNERDUCT • ADHERE TO CABLE MANUFACTURER SPECIFICATIONS • LABEL, LABEL, LABEL RECOGNIZED BACKBONE CABLE TYPES • 100 OHM BALANCED TWISTED PAIR • 50/125um OR 62.5/125um OPTICAL FIBER CABLE • SINGLEMODE OPTICAL FIBER CABLE BACKBONE CABLING DISTANCE • DETERMINED BY DATA RATE, BANDWIDTH, AND MEDIA TYPE • UTP/ScTP CAT5e CANNOT EXCEED 90 METERS FOR ETHERNET BACKBONES Fiber Type 6F 6U 5H 5L 5M Core/Clad (microns) 62.5/125 62.5/125 50/125 50/125 50/125 850-nm BW (MHzkm) 200 220 500 2000* 950* 1300-nm BW (MHzkm) 500 1000 500 500 500 1 Gb Distance (m @ 850) 300 500 600 600 600 1 Gb Distance (m @ 1300) 700 1200 600 600 600 10 Gb Distance (m @ 850) 300 150 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 QUESTIONS?