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Ethernet as a field-network. Renaud Barillère - CERN IT-CO. Factory. Ethernet. SCADA. Ethernet. PLCs. EWS. Devices. A typical control architecture. Field buses. Factory. Ethernet. SCADA. Ethernet. PLCs. EWS. Field buses. Devices. Ethernet as a field-network.
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Ethernet as a field-network Renaud Barillère - CERN IT-CO
Factory Ethernet SCADA Ethernet PLCs EWS Devices A typical control architecture Field buses
Factory Ethernet SCADA Ethernet PLCs EWS Field buses Devices Ethernet as a field-network
Purposes of Ethernet as field-network • Purposes: • Run time data exchanges; • Configuration of devices or PLCs; • Remote maintenance. • Remark about connections: • Direct vs indirect connections
Ethernet hardware components • The infrastructure components • Standard LAN components or Industrial ones? • Specific topology? • The control components • PLC modules; • Bus couplers; • Intelligent devices; • Gateways (for field buses)
Ethernet software components • The protocols • 802.3, TCP/IP family • Others? • The libraries • PLC libraries • The tools • Configuration/development • Dedicated or open tools? • Remote maintenance • Web servers or dedicated tools.
A standard or n “standards”? • Field buses: n “standards” • Compatibility issues • Interoperability issues • Ethernet as field-network • Are standards desired? • De facto standard? • New standard(s)?
What about security? • Why • Mistakes and attacks • Where • Infrastructure, PLC, Devices? • How • Passwords, IP address, others?