{"product_id":"honeywell-mli-dr64h-master-logic-high-density-cpu-base-module","title":"Honeywell MLI-DR64H Master Logic High-Density CPU Base Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\u003cp\u003eThe Honeywell MLI-DR64H stands as the high-capacity powerhouse of the Master Logic PLC family, specifically engineered to manage intensive discrete control tasks within high-density automation environments. Featuring an integrated 64-point I\/O array, this CPU module eliminates the need for multiple expansion cards in space-constrained cabinets, making it ideal for large-scale packaging lines, water treatment facilities, and auxiliary power control systems. The MLI-DR64H executes complex ladder logic with deterministic precision, ensuring that rapid-fire signal transitions in rotating machinery or high-speed conveyors are processed with zero jitter. Its robust architecture serves as a reliable backbone for facility managers who demand the industrial-grade stability of Honeywell combined with the agility of a high-performance PLC.\u003c\/p\u003e\n\u003ch2\u003eCore Processing and I\/O Topology\u003c\/h2\u003e\n\u003cp\u003eThe MLI-DR64H utilizes a high-speed 32-bit RISC processor to deliver a staggering execution speed of 0.1µs per instruction step. This module integrates 36 points of 24VDC digital input and 28 points of relay output directly onto its base chassis, providing a comprehensive control footprint out of the box. For networking, it supports native RS-232C and RS-485 interfaces, allowing for seamless Modbus RTU integration with field devices and HMIs. The internal memory structure accommodates up to 10k steps of program capacity, while the built-in high-speed counter (up to 100kHz) enables the unit to interface directly with high-resolution encoders, providing precise positioning data without the latency associated with traditional I\/O expansion.\u003c\/p\u003e\n\u003ch2\u003eCritical Technical Specification\u003c\/h2\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eHoneywell\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMLI-DR64H\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eI\/O Capacity\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e64 Points Total (36 In \/ 28 Out)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Type\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRelay Output\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eProcessing Speed\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.1μs \/ step\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e100-240V AC (Standard)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eCommunication Ports\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRS-232C, RS-485 (Modbus RTU)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOperating Temperature\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0°C to 55°C\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.95 kg\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eShipping Dimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e185mm x 110mm x 95mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eHS Code\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e85371011\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eField Integration and Wiring Protocol\u003c\/h2\u003e\n\u003cp\u003eMount the MLI-DR64H on a standard 35mm DIN rail, ensuring at least 50mm of vertical clearance to facilitate natural convection cooling. When wiring the high-density terminal blocks, utilize ferrules for all 24VDC input connections to prevent stray strands from causing short circuits in the compact I\/O field. For the relay outputs, strictly adhere to the maximum current ratings per common terminal to avoid thermal damage to the internal traces during high-inductive load switching. We recommend installing external surge suppressors or flyback diodes when controlling large solenoids to protect the internal relay contacts from premature pitting and electrical noise injection.\u003c\/p\u003e\n\u003ch2\u003eSystem Resilience and Architecture Value\u003c\/h2\u003e\n\u003cp\u003eThe MLI-DR64H thrives in environments characterized by high electromagnetic interference, featuring enhanced shielding and filter logic that outclasses standard commercial-grade controllers. It integrates perfectly with Honeywell’s SoftMaster programming environment, allowing for rapid deployment of PID loops and advanced arithmetic functions. By consolidating 64 I\/O points into a single base module, engineers significantly reduce the total system failure points and simplify the spare parts inventory. This unit acts as a versatile bridge in hybrid architectures, often serving as a dedicated machine-level controller that feeds critical diagnostic data back to a centralized Experion PKS system.\u003c\/p\u003e\n\u003ch2\u003eLogistics and Global Fulfillment\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDispatch Timeline:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAll orders are prepared for worldwide shipping within 3-5 days when payment finish.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLogistics Partners:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWe coordinate secure, tracked transit via DHL, FEDEX, and UPS.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIndustrial Protection:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eEvery MLI-DR64H undergoes strict ESD-safe handling and is shipped in anti-static industrial packaging with double-walled corrugated reinforcement.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCondition Statement:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWe supply only New, Sealed, and Original Pack inventory, ensuring your facility receives factory-certified hardware ready for immediate deployment.\u003c\/p\u003e\n\u003ch2\u003eHardware Support Knowledge Base\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: Can I expand the I\/O beyond the 64 points built into the MLI-DR64H?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA1:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAbsolutely. While the base module is highly capable, it supports additional Master Logic expansion modules to the right of the CPU, allowing the system to scale as your process requirements grow.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: What is the benefit of the Relay outputs in this specific model?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA2:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eThe relay outputs provide high-current switching capability (up to 2A per point) and allow for the control of both AC and DC loads, providing maximum flexibility for field device interfacing without external interposing relays.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: Does the MLI-DR64H retain its program during a long-term power failure?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA3:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes, the module utilizes non-volatile Flash memory for the user program. Retentive data is maintained by an internal high-performance capacitor, though a battery-backed option is available for extended memory retention.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ4: Is it possible to use the RS-485 port for multi-drop networking?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA4:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eYes, the built-in RS-485 port is designed for multi-drop Modbus RTU communication, allowing the MLI-DR64H to act as either a Master or Slave node in a network of up to 32 devices.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":45518944633005,"sku":"MLI-DR64H","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/honeywell-mli-dr64h-base-modules-reire0tu1hm.jpg?v=1766982548","url":"https:\/\/www.maxwellplc.com\/products\/honeywell-mli-dr64h-master-logic-high-density-cpu-base-module","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}