Fault Tolerant Ethernet
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​Fault Tolerant Ethernet (FTE) is the industrial control network of the Experion® Process Knowledge System (PKS). Combining Honeywell’s expertise in designing robust control networks with commercial Ethernet technology, it goes beyond providing fault tolerance. FTE ensures the performance, determinism and security required for industrial control applications.

The FTE network connects clusters or groups of nodes such as servers and stations, typically associated with the same process unit. It provides multiple communication paths between these nodes so the network can tolerate all single faults and many multiple faults.

FTE ensures rapid detection and recovery in case of communication failures with a switchover time of less than a second. It allows normal Ethernet nodes to connect to the FTE control network and benefit from its highly available communications environment. With FTE, users can leverage commercial Ethernet technology found in IT networks to lower the costs of the FTE control network infrastructure, connections to IT networks and third-party Ethernet devices, and ongoing maintenance and support.

FTE ensures that the switchover time in case of a communication failure is less than one second. This is because it uses a single network and does not require a server or station to re-establish its network connection. In addition, the nodes in the FTE control network continually check the status of each communication path to ensure high availability. 

Conventional Ethernet redundancy schemes employ two separate Ethernet networks with each node connected to both networks. If a communication failure occurs, the elapsed time for a particular node to switch to the other network can be over 30 seconds, depending on network equipment and how the system is configured for network failover.

​With FTE industrial control network, users benefit from efficient fault tolerance as well as fast response, determinism and improved security. The solution does not require purpose-built network switches as it uses commercial, off-the-shelf (COTS) technology. FTE is simpler to operate and manage since it allows seamless connection to non-FTE Ethernet nodes and online additional/removal of nodes.

Documentation
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Experion Network Best Practices R410, version 4.1The white paper describes the best practices for implementing FTE for Experion R410 system. Besides the standard DCS implementation, this release includes Networking guidelines for Virtualization, One Wireless R200 and Safety Manager-FTE integration.1.3 MBWhitepaper21 Jan 2014
Fault Tolerant Ethernet PINFTE delivers not only fault tolerance, but also the performance and security required for industrial control applications. 1.06 MBProduct Information Note7 Sep 2011
Public Support Documentation
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Honeywell Modbus TCP Firewall with NTP Version DHoneywell Modbus TCP Firewall firmware Version D upgrade. Version D permits NTP communication. Also, firmware is available to modify the firewall build number.446.82 KBSoftware Download6 Dec 2012
Cisco Field Notification EOL8044 - EOLCisco field notification for 3750G EOL158.34 KBSupport Document31 Oct 2012
Hyperterminal Installation Honeywell Hyperterminal Installation msi 1.96 MBSoftware Download9 Feb 2012

​Honeywell offers training courses to help users optimally operate the Experion Process Knowledge System (PKS) infrastructure comprising the Experion PKS Server, Fault Tolerant Ethernet and the C200/300 controllers.

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