What is Industrial Ethernet

Industrial & Optical Ethernet Industrial Ethernet Networks? There is only one Ethernet –802.3 –Ethernet v2 So what is Industrial Ethernet ( also called rugged or hardened ) ? –The use of Ethernet technology in harsh and industrial environments vs. benign environment ( also called commercial, business, enterprise, consumer Ethernet) –The use of Ethernet and TCP/IP as a transport mechanism for industrial protocols

Industrial & Optical Ethernet Aspects of Industrial Ethernet Environment Operation Maintenance Management

Environment

Industrial & Optical Ethernet Physical Characteristics No “standard” Industrial Ethernet switch Specification must match PLC Network equipment must not be the weakest link

Industrial & Optical Ethernet Marine Substation Transportation ATEX Zone 2 Certifications

Industrial & Optical Ethernet Environmental Conditions Mounting Form factor Operating voltage Temperature No fans Vibration Resistance to EMI Protection class Conformal coating

Industrial & Optical Ethernet Ports Number of ports Speed Media types Connectors

Operation

Industrial & Optical Ethernet Managed or Unmanaged Switches Managed –Required for more complex network configurations –High network visibility –Manageability –Ring redundancy Unmanaged –Low cost –Low maintenance –Plug and play

Industrial & Optical Ethernet Network Design Office networks – Overbooking – Traditional estimation Industrial networks – Non-blocking – Distributed approaches

Industrial & Optical Ethernet Message Types Unicast - message to a single destination Broadcast - message to all nodes in a subnet Multicast - message to a group of devices

Industrial & Optical Ethernet Multicast Control Ethernet floods multicasts by default Every end device must process received multicasts Multicast control on Ethernet – IGMP

Industrial & Optical Ethernet Maintenance Device Replacement Rapid rectification of failures required – The “Midnight Maintenance Man” – Device replacement techniques – Standardized / Proprietary – Exchangeable memory media – Topology-dependent configuration

Industrial & Optical Ethernet Management Why? – Fault notification and location – Proactive notification of potential problems How? – SNMP – OPC – Profiles

Industrial & Optical Ethernet Conclusion What benefits does Industrial Ethernet bring? – Higher bandwidth – Convergent networking – Cost reduction – Open connectivity – Vertical integration – Standardization