Overview
Manuals
Exact Part Mapping
LCN Hardware Role
Replacement Boundary
Features:
- Honeywell LC13-500 table 2-5 maps 51304540-100 directly to LCNE2.
- The manufacturer calls LCNE2 a newer version of the LCNE board type.
- The table separately identifies earlier LCNE and EC-marked LCNE2 part numbers.
Honeywell's September 1995 Five/Ten-Slot Module Service manual contains a parts table for I/O boards and paddle boards. It maps 51304540-100 to LCNE2 and describes that board as a newer version of the LCNE Local Control Network Extender. The same table lists earlier LCNE 51109881-100 and a separate EC-marked LCNE2 51304540-200. Because this website product title contains only a number, the manufacturer row supplies the technical identity. It does not establish the condition, exact revision or complete included assembly of a particular item offered for sale.
The manual's exact catalog mapping should guide verification, not encourage unsupported transfer of specifications. Before purchasing or maintaining an LCN extender, record the old board's full label, slot, five/ten-slot module type, cable positions, system drawings, diagnostics and relevant release documentation. Confirm any EC versus non-EC requirement directly against the actual installed hardware and current manufacturer support. Do not characterize this part as an FSC safety board or assume that every LCNE version is a drop-in equivalent. After authorized replacement, inspect seating and LCN connections, restore the documented configuration and check communication health before process release.
The 51304540-100 Honeywell LCNE2 Local Control Network Extender Board may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
Honeywell 51304540-100 official technical documentation and product links.
This multi-page Honeywell technical document contains the exact model and its technical data. Apply the values to the supplied type number and verify its revision before installation.
Honeywell table 2-5 directly prints 51304540-100 on the LCNE2 row and calls it a newer version of LCNE. The numeric-only website title should therefore be checked against LCNE2 on the supplied board. The same table's neighboring rows are different parts; they cannot be silently combined. Historical parts identification does not establish that a stocked board has the correct revision for every plant.
The manual classifies LCNE2 among I/O or paddle board types for Honeywell five/ten-slot modules. Its described function is Local Control Network extension, not field analog measurement or a standalone safety controller. The exact table does not state universal link bandwidth, port count or cable lengths. Those installation-specific details require applicable system drawings and current service guidance for the receiving assembly.
Before an authorized exchange, record the original extender board label, module type, slot, backplane connector, all cable positions and baseline communication diagnostics. Verify whether the installation calls for 51304540-100 or the separately listed EC 51304540-200. Follow current Honeywell and site handling procedures, then check seating and network health after restoration. A similar LCNE designation alone does not prove interchangeability across system revisions.
