HONEYWELL LCNP4E

Product Introduction
Experion LCN further continues innovation for Honeywell customers.    Using the proven Experion Fault TolerantEthernet (FTE) infrastructure, a new Experion Local Control Network (ELCN) Bridge connects Experion to ClassicCOAX LCN.    Once this connection is established, Classic LCN COAX-based nodes can be replaced with FTE-basedExperion LCN nodes, allowing the removal of these LCN nodes as they are migrated one at a time.
With Experion LCN, existing control strategy, field terminations, applications, history and graphics can be retained,allowing users to focus on high value improvements.    It minimizes operating disruptions, maintains overall consistencyand delivers optional lifecycle advantages with virtualization.

Experion Local Control Network System Overview
The Experion LCN is the Fault Tolerant Ethernet (FTE) version of the classic coaxial cable-based LCN.   The objectiveof the ELCN is to convert Classic LCN COAX-based nodes to FTE-based Experion LCN nodes.   This conversion canoccur incrementally, over time, without shutting down LCN nodes.   Ultimately, all LCN nodes may be migrated toELCN, allowing for a complete elimination of the LCN-based system.

ELCN is divided into two general parts.   The first part is the ELCN Bridge product which has a singular purpose oroperating as a bridge between the LCN and FTE.   The second part is the conversion of LCN nodes to Experion LCNnodes.   An Experion LCN node is a hardware/software entity that performs the same function as its LCN equivalentnode where an FTE network replaces the COAX network.

Migration to the ELCN requires an ELCN Bridge node to connect the Classic LCN to the Experion LCN, creating asingle logical hybrid network.  The ELCN Bridge must be installed as a redundant pair

The ELCN Bridge translates LCN messages into Ethernet messages and vice versa.  The ELCN Bridge provides ameans for legacy LCN functions and the Experion version of those functions to co-exist and inter-operate duringmigration of the classic LCN nodes to Experion LCN nodes.  Once an LCN Bridge creates a communication pathbetween the LCN and the FTE, classic LCN nodes can be upgraded one at a time.  During the upgrade process thenode number, such that the node's logical role in the system remains unchanged.  The legacy node that migrates froma physical LCN segment to the ELCN network appears unchanged in configuration to its operating peer nodes.

Upgrade process may occur over an extended period of time until no nodes remain connected to LCN, other than theELCN Bridge.  At this time the ELCN Bridge may be removed (as the final step of the upgrade) and reused as a sparepart (Experion LCN node or bridge).