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Apter Power can provide Honeywell MLI-DR28UA/DC for verified MasterLogic 50 control requirements, with current quotation, sourcing support and delivery planning for the requested quantity.
MLI-DR28UA/DC combines controller processing, local digital I/O and its power stage in one compact Honeywell MasterLogic 50 assembly.
The relay contacts output arrangement must be matched to field polarity, load behavior and protective devices before wiring.
Communication planning covers 1 built-in FEnet port together with 2 built-in Snet channels.
Apter Power can provide Honeywell MLI-DR28UA/DC for verified replacement and new-project requirements.
Verified resources for Honeywell MLI-DR28UA/DC:
The onboard allocation of MLI-DR28UA/DC should be checked against the application point list and physical terminal map.
Expansion channels are engineered separately from the base-unit count and must agree with the saved project.
Communication interfaces on MLI-DR28UA/DC support engineering and system data exchange appropriate to the configured MasterLogic network.
Test every required peer, supervisory and programming connection after hardware replacement.
Load only the approved MLI-DR28UA/DC application after confirming the target hardware configuration.
Review diagnostics and perform controlled functional tests before enabling automatic operation.
After fitting MLI-DR28UA/DC, compare actual field voltage and load behavior with the documented design.
Record the installed revision, project backup, measured supply and commissioning results.
MLI-DR28UA/DC is a Honeywell MasterLogic 50 plc base module with analog i/o with an integrated processor, 24 V DC power input, 16 24 V DC digital inputs and 12 relay outputs. The compact assembly combines controller execution, power conversion and local I/O for machine, utility and sequence-control applications. It also provides 8 analog i/o points for local mixed-signal control.
The MLI-DR28UA/DC provides 28 onboard digital points before compatible expansion I/O is counted. The 12 relay channels provide contact switching for appropriately rated field circuits. Load voltage, steady current, inrush, switching frequency and suppression must be checked for every connected device. Communication resources include 1 built-in FEnet port and 2 built-in Snet channels, so addressing and network parameters should be retained during replacement.
Before installing the MLI-DR28UA/DC, verify the complete nameplate, power class, terminal allocation, I/O commons, output wiring, connected expansion hardware, firmware level and approved application backup. Commissioning should include insulation and grounding checks, point-by-point I/O tests, controller diagnostics, communication tests and a controlled proof of the final machine sequence.





