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        Schneider 140CPU43412A
        Schneider 140CPU43412A
        Schneider 140CPU43412A
        Schneider 140CPU43412A
        Schneider 140CPU43412A
        Schneider 140CPU43412A
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        140CPU43412A

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        1001 reviews ｜ Need a Specific Revision?
        140CPU43412A is a Quantum Unity CPU with 80486 processor at 66MHz, 846k IEC program capacity, math coprocessor, and supports local/remote I/O for industrial control.
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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 140CPU43412A

        • Manufacturer:
          Schneider Electric
        • Part Number:
          140CPU43412A
        • Product Family:
          Modicon Quantum
        • Product Type:
          CPU Unity
        • Clock Speed:
          66 MHz
        • User Logic Capacity (IEC):
          846 kbytes
        • Located Data & Config (max):
          256 kbytes
        • Discrete I/O Capacity:
          64 k
        • Register Memory (Unity):
          64 k
        • Program and Unlocated Data (min):
          800 kbytes
        • Local I/O:
          64 in / 64 out per module
        • Maximum I/O Racks:
          2 (requires expander)
        • Remote I/O Drops (max):
          31
        • Remote I/O Words per Drop:
          64 in / 64 out
        • Distributed I/O Networks (max):
          3
        • Distributed I/O Words per Network:
          500 in / 500 out
        • Distributed I/O Words per Node:
          30 in / 32 out
        • Watchdog Timer:
          250 ms (software adjustable)
        • Logic Solve Time:
          0.1 – 0.5 ms/k
        • Weight:
          0.46 kg
        • Estimated shipping dimensions:
          4x10.6x25cm
        • Tariff Code:
          8537101190
        • Country of origin:
          France
        • Place of shipment:
          USA 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 Specifications Application Certifications & Standards Compatibility

        Features:

        • Features 66MHz clock speed with integrated math coprocessor for efficient floating-point calculations and fast logic execution (0.1-0.5 ms/k).
        • Provides 846k IEC program capacity, 256k located data/config, 64k discrete I/O, and 64k register memory, suitable for complex control applications.
        • Supports local I/O (2 racks with expander), remote I/O (31 drops with 64 in/64 out per drop), and distributed I/O (3 networks, 500 words/network).
        The 140CPU43412A is built around an 80486 processor running at 66MHz, a significant advancement over earlier Quantum CPUs. The integrated math coprocessor enables efficient handling of floating-point arithmetic, essential for complex process control algorithms such as PID loops, temperature calculations, and flow compensation. The logic solve time ranges from 0.1 to 0.5 milliseconds per kilobyte of code, ensuring fast scan cycles even for large control programs. This speed is critical in applications requiring rapid response, such as packaging machines, high-speed conveyors, and emergency shutdown systems.

        The 140CPU43412A offers substantial memory resources for demanding control applications. The IEC program capacity is 846 kbytes, providing ample space for large ladder logic, function block diagrams, and structured text programs. For Unity users, the minimum program and unlocated data allocation is 800 kbytes, with 256 kbytes dedicated to located data and configuration. The discrete I/O capacity reaches 64k points, suitable for large factory automation systems with thousands of field devices. Register memory for Unity applications is 64k, enabling extensive data tables, recipe storage, and historical logging.

        The 140CPU43412A supports a comprehensive range of I/O architectures, making it suitable for systems of varying scale and complexity. For local I/O, the CPU supports up to two racks (requiring an expander), each capable of housing multiple I/O modules. For remote I/O, the 140CPU43412A handles up to 31 drops, each supporting 64 input words and 64 output words. This allows field I/O to be distributed across large facilities, reducing wiring costs and simplifying maintenance. For distributed I/O, the CPU supports up to three networks, each capable of carrying 500 input words and 500 output words across up to 266 network modules (using two modules per node).

        The 140CPU43412A Schneider CPU Unity may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).

        Schneider 140CPU43412A CPU Unity Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        Schneider 140CPU43412A CPU Unity Specs

        General

        • Manufacturer Schneider
        • Model 140CPU43412A
        • Condition New Original ready stock
        • Product Family 140DAI74000,140DDI35310,140DDO35301,140CRA21220
        Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
        • Power & Utility Control: Deployed heavily across balance-of-plant (BOP) systems in thermal and hydroelectric power plants, supervising high-density water treatment, ash handling, and coal conveyor networks.
        • Municipal Water Management: Governing centralized, multi-node automation structures for large-scale water treatment plants, municipal sewage plants, and reverse-osmosis desalination complexes.
        • Oil & Gas Process Control: Operating booster stations along cross-country pipeline grids, terminal tank farms, and managing multi-loop proportional-integral-derivative (PID) control loops in industrial reactors.
        • Heavy Process Industries: Handling high-frequency I/O scanning and equipment interlocking in harsh steel mill blast furnaces, cement kilns, and mining crushing facilities.
        • Electrical Safety & Quality Standards: Fully listed under UL 508 (Standard for Industrial Control Equipment), CSA C22.2 No 142 (Canadian Standard Association), and certified to carry the cUL mark.
        • Hazardous Area (Explosion-Proof) Safety: Holds FM Class 1 Division 2 certification (Groups A, B, C, D), allowing direct deployment into industrial enclosures where flammable gases, vapors, or volatile liquids may occasionally be present.
        • Electrostatic Discharge (ESD): Compliant with IEC 801-2 (withstands up to 8 kV air discharge and 4 kV contact discharge).
        • Radiated Electromagnetic Field Immunity: Compliant with IEC 801-3 (withstands high-frequency sweeps up to 10 V/m within the 80 MHz to 2000 MHz spectrum).
        • Multi-Platform Engineering: While natively running LL984 logic under Concept or ProWORX, it easily maps into Unity Pro (v7.0 and higher) and modern EcoStruxure Control Expert platforms.
        • Redundant Hot Standby Matching: If establishing a highly available redundant configuration (Hot Standby), both the primary and standby controllers must match as the specific "A" version variant (e.g., both must be 140CPU43412A). Mixing "A" and non-"A" modules will fail because of underlying flash memory execution discrepancies.
        • Modbus Plus (MB+) Peer-to-Peer Networking: Features an on-board 9-pin SUB-D female port supporting local coaxial multi-drop topologies, managing peer-to-peer data distribution across up to 63 independent network nodes.
        Description
        The 140CPU43412A is a Quantum Unity CPU module from Schneider Electric, designed for high-performance industrial control applications. It features an 80486 processor running at 66MHz with an integrated math coprocessor for floating-point calculations. 

        The 140CPU43412A supports up to 64k discrete I/O and 64k register memory for Unity applications. With 256k bytes of located data and configuration space, the 140CPU43412A handles complex control strategies efficiently. The logic solve time ranges from 0.1 to 0.5 ms per kilobyte, ensuring fast scan cycles. 
        For remote I/O capabilities, the 140CPU43412A supports up to 31 remote drops with 64 input and 64 output words per drop. The 140CPU43412A also supports distributed I/O across up to 3 networks with 500 words per network. 

        The 140CPU43412A is shipped preloaded with Concept/ProWORX operating systems. For Unity support, users can download and load the Unity executive from the Schneider Electric website. The 140CPU43412A provides maximum I/O words of 64 input and 64 output per module in Unity mode, or per drop in Concept/ProWORX mode.
        Alternative Names
        14OCPU43412A 140CPU434I2A 140CPU4321A 140CPU43412 140CRA21220 140DAI74000 140DDI35310 140DDO35301
        Technical notes
        The 140CPU43412A is a Quantum Unity CPU with 66MHz 80486 processor and math coprocessor. Provides 846k IEC program capacity, 256k located data, 64k discrete I/O, and 64k register memory. Supports 31 remote drops, 3 distributed networks.
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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
        What operating systems does 140CPU43412A support?
        The 140CPU43412A ships with Concept/ProWORX preloaded. For Unity Pro support, you must download and load the Unity executive from Schneider Electric's website into the CPU.
        What is the program memory capacity of 140CPU43412A?
        The 140CPU43412A provides 846k IEC program capacity. Minimum IEC application without PCMCIA is 800k for program/unlocated data, with 256k for located data and configuration.
        What are the logic solve time specifications for 140CPU43412A?
        The logic solve time ranges from 0.1 to 0.5 milliseconds per kilobyte. The watchdog timer is factory-set to 250ms but can be adjusted via software.
        How many remote I/O drops can 140CPU43412A support?
        The 140CPU43412A supports up to 31 remote drops, with each drop handling 64 input words and 64 output words. The maximum number of remote I/O racks is 2, requiring an expander.

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