2MLR-DBSF Honeywell MasterLogic-20 Expansion Driver Module

The Honeywell 2MLR-DBSF (also cataloged as 2MLR-DBSF) is a fiber optic expansion driver module designed for the Honeywell MasterLogic-20 PLC system. It facilitates fast, noise-resistant data communication between CPU units and remote expansion bases over distances up to 2 km, enabling reliable distributed control performance in industrial environments.

Optical Communication and Base Station Addressing

Utilizing 62.5/125 um multi-mode fiber optic cabling with LC-type connectors, the module provides high-speed optical isolation against electromagnetic interference across long transmission distances. It supports station address numbering from 1 to 31 (invalid numbers trigger a system error) and features an integrated USB loader connection for expansion drive configuration.

Installation and Operating Environment

The 2MLR-DBSF installs into the dedicated CPU0 connector position within the MasterLogic-20 expansion base chassis. Weighing 0.3 kg, the module operates across a standard temperature range of 0 deg C to 55 deg C (extended limits up to -10 deg C to +70 deg C) and supports operating humidity levels from 5% to 95% RH (non-condensing).

Frequently Asked Questions

Q: What optical connector and fiber cable types are used with the Honeywell 2MLR-DBSF module?

A: The module connects via LC-type optical connectors using standard 62.5/125 um multi-mode fiber optic cables.

Q: What is the maximum distance and station addressing supported by the 2MLR-DBSF expansion driver?

A: It supports transmission distances up to 2 km between expansion bases, with valid station numbers ranging from 1 to 31.

Q: Where is the 2MLR-DBSF module installed in the expansion rack?

A: The module must be installed into the CPU0 connector slot in the MasterLogic-20 expansion base.