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        • Lifecycle status

          Active / Available from OEM
          Apter Power can supply Honeywell MLC-DN64H/DC for verified MasterLogic 50 base-unit requirements, with current pricing and delivery support for the requested quantity.

        MLC-DN64H/DC

        / 4.9
        1001 reviews ｜ Need a Specific Revision?
        Honeywell MLC-DN64H/DC is a MasterLogic 50 base module with 32 digital inputs, 32 open-collector transistor outputs and a 24 V DC supply.
        In Stock
        Ships by Friday, October 30
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for MLC-DN64H/DC

        • Manufacturer:
          Honeywell
        • Part Number:
          MLC-DN64H/DC
        • Product Family:
          Honeywell MasterLogic-50
        • Product Type:
          MasterLogic 50 PLC base module
        • Stock:
          1
        • Power supply:
          24 V DC
        • Digital input voltage:
          24 V DC
        • Digital input channels:
          32
        • Digital output channels:
          32
        • Output technology:
          Open-collector transistor
        • Output logic:
          Sink
        • Base-unit format:
          Compact H DC base unit
        • Programming standard:
          IEC 61131-3
        • Tariff Code:
          8537101190
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen,Fujian,China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals I/O Data Output Wiring Compatibility Installation Check

        Product overview:

        • Integrated CPU and 24 V DC power supply
        • 32 24 V DC digital inputs
        • 32 sink open-collector outputs

        MLC-DN64H/DC combines processing, power and 64 onboard digital points in a compact h dc base unit.

        The integrated design supports compact stand-alone control while retaining access to compatible MasterLogic 50 expansion I/O.

        Select field protection and common wiring for the open-collector transistor output stage before commissioning.

        Honeywell MLC-DN64H/DC is available for quotation and technical support from Apter Power.

        Verified resources for Honeywell MLC-DN64H/DC:

        I/O data:

        • Digital inputs: 32 at 24 V DC
        • Digital outputs: 32
        • Output stage: Open-collector transistor, sink

        The onboard I/O allocation of MLC-DN64H/DC should be mapped against the application point list before replacement.

        Expansion capacity is evaluated separately from the base-unit channel count.

        Output wiring:

        • Use sink DC output wiring
        • Maintain the documented common polarity
        • Protect each field branch against overcurrent

        The open-collector outputs of MLC-DN64H/DC require a compatible DC load circuit and must not be treated as dry contacts.

        Verify the voltage at the output terminal and the connected device during both commanded states.

        Compatibility:

        • Match the exact MasterLogic 50 base-unit suffix
        • Confirm expansion modules and terminal allocation
        • Verify hardware, firmware and project backup

        Replacement of MLC-DN64H/DC requires more than matching the total channel count.

        Power class, output technology, common arrangement and retained program data must all agree with the installed system.

        Installation check:

        • Isolate power and identify every field conductor
        • Verify supply, grounding, common and terminal torque
        • Test every I/O point and controller diagnostic

        After installing MLC-DN64H/DC, restore the approved application and prove the controlled sequence under site procedures.

        Record the final hardware revision, measured supply and functional-test results.

        Description
        The MLC-DN64H/DC is a Honeywell MasterLogic 50 base module with an integrated CPU, 24 V DC power supply, 32 24 V DC digital inputs and 32 sink open-collector outputs. The combined base-unit design brings controller processing, power conversion and local discrete I/O into one compact PLC assembly for machine, utility and sequence-control duties.

        The MLC-DN64H/DC provides 64 onboard digital points before compatible expansion I/O is added. Its sink transistor stage requires the correct DC polarity, common reference and load return, with external protection sized for every channel.

        Before installing or replacing the MLC-DN64H/DC, confirm the complete suffix, supply class, input commons, output wiring method, expansion-module compatibility and retained application backup. Commissioning should verify terminal torque, insulation, field-power distribution, individual point operation, diagnostics and the final safe response of connected equipment.
        Alternative Names
        MLC-DN64H/DC MLC DN64H DC MLCDN64HDC Honeywell MLC-DN64H/DC Honeywell MLC DN64H DC Honeywell MasterLogic MLC-DN64H/DC MLC-DN64H/DC PLC base module MLC-DN64H/DC 32 input 32 output PLC
        Technical notes
        MLC-DN64H/DC integrates a 24 V DC supply, 32 24 V DC inputs and 32 sink open-collector outputs in one Honeywell MasterLogic 50 base unit. Confirm the exact suffix, output wiring, expansion arrangement and retained project before installation.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        How are the 32 digital inputs on MLC-DN64H/DC wired?
        Use 24 V DC field signals with the correct input common and polarity, then verify the OFF and ON thresholds at the terminal under real cable and contact conditions.
        What does the sink output logic on MLC-DN64H/DC require?
        The sink open-collector outputs require the documented DC polarity, common reference, load return and external overcurrent protection; do not wire them as dry relay contacts.
        How many onboard I/O points does MLC-DN64H/DC provide?
        It provides 32 digital inputs and 32 digital outputs, for 64 onboard points before compatible expansion I/O is counted.
        Which supply must be connected to MLC-DN64H/DC?
        The base unit requires 24 V DC. Confirm the exact nameplate, protective device, grounding and available current before energizing the PLC.
        How is the MLC-DN64H/DC application engineered?
        Use the Honeywell MasterLogic programming environment and IEC 61131-3 logic appropriate to the controller revision; preserve and validate the approved project backup before exchange.
        Can another MasterLogic 50 base unit directly replace MLC-DN64H/DC?
        Only after matching supply type, 32/32 I/O allocation, open-collector transistor output behavior, terminal layout, expansion hardware, firmware and application memory.
        What commissioning checks are required after fitting MLC-DN64H/DC?
        Inspect wiring and terminal torque, verify supply and commons, test every input and output under controlled conditions, review diagnostics and prove the machine sequence before return to service.
        What information is needed to quote MLC-DN64H/DC?
        Provide the exact MLC-DN64H/DC nameplate, hardware and firmware revision, required supply, I/O load details, expansion modules, quantity, destination and requested delivery date.

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