Description

Honeywell 2MLR‑DBSF MasterLogic‑200 Fiber Expansion Driver Module

Technical Specifications

• Part Number: 2MLR‑DBSF
• Brand: Honeywell (OEM by LS Electric)
• Warranty: One Year
• System Power: Powered by MasterLogic‑200 PLC rack backplane; no external field power input
• Operating Temperature: ‑10 °C ~ +70 °C cabinet‑mount installation
• Storage Temperature: ‑20 °C ~ +85 °C
• Transmission Media: Multi‑mode optical fiber；Cable: 62.5/125 µm；Connector: LC‑Duplex
• Max Distance: 2 km between expansion bases
• Station Address: Station number configurable 1‑31；Station 0 is invalid and triggers fault alarm
• Interface: Dual LC fiber ports; USB service loader port; front‑panel diagnostic LED indicators; backplane mating connector for expansion‑base CPU0 slot
• Supported System: Honeywell MasterLogic‑200 PLC / Experion‑LX DCS platform；fiber‑based remote expansion bus for distributed I/O racks
• Protection: Optical‑port surge‑suppression; bus‑link fault‑diagnostics; module‑health status reporting
• Humidity: 0‑95 % RH non‑condensing
• Dimensions / Weight: 100 mm ×150 mm ×40 mm；approx 0.3 kg

Product Overview

The 2MLR‑DBSF is a fiber‑optic expansion‑driver module for Honeywell MasterLogic‑200 PLC system. It is installed into the CPU0 slot of remote expansion‑base rack, establishes long‑distance noise‑immune fiber communication between main CPU rack and distributed remote I/O expansion racks. It transfers real‑time I/O data, control logic status over multi‑mode fiber, extends system I/O layout distance and mitigates EMI / ground‑loop interference in heavy‑noise industrial plant environments. USB port supports local firmware download and diagnostics.

This module addresses distributed‑I/O challenges: long‑distance fiber‑based PLC‑expansion, strong anti‑interference performance for power‑plant & petrochemical cabinets, drop‑in spare‑part compatibility for legacy MasterLogic‑200 retrofit‑maintenance projects. DCS‑PLC engineers, plant‑maintenance technicians and retrofit integrators benefit most. Typical applications: power‑utility, pulp‑and‑paper, oil‑gas plant control systems.

Key Application Notes

• Must be inserted into CPU0 slot of expansion base, cannot operate standalone; requires matching MasterLogic‑200 CPU and multi‑mode LC fiber cables
• Strictly use 62.5/125‑µm multi‑mode fiber; single‑mode fiber is not supported
• Station address setting must be within 1‑31; address conflict will cause bus‑communication failure
• Not hot‑swap capable: rack power must be removed before module replacement
• Original OEM production is obsolete; widely‑used aftermarket spare for existing MasterLogic‑200 system maintenance‑retrofit projects
• Follow Honeywell MasterLogic‑200 installation manual for fiber‑link budget and station‑address configuration