Schneider Electric 140CPU43412A Modicon Quantum CPU Module with Ethernet
When a Modicon Quantum CPU fails on the plant floor, the consequences are immediate and severe — production lines halt, safety interlocks go offline, and every minute of downtime translates directly into lost revenue and potential safety risk. The Schneider Electric 140CPU43412A is the central processing unit that keeps your Quantum rack-based control system running. Without it, your entire automation architecture is inoperable. There is no workaround, no bypass — the CPU is the brain of the system.
The 140CPU43412A occupies a well-established position within the Modicon Quantum product family — Schneider Electric’s flagship high-performance PLC platform designed for demanding process and discrete manufacturing environments. Featuring an integrated 10/100 Mbps Ethernet port, this CPU supports Modbus TCP/IP communication natively, enabling seamless integration into modern industrial Ethernet networks without additional communication modules. It is widely deployed across oil & gas, water treatment, power generation, and heavy manufacturing facilities worldwide, making it one of the most recognized and trusted CPU references in the Quantum series.
Technical Specifications
- Part Number: 140CPU43412A
- Brand: Schneider Electric (Modicon)
- Series: Modicon Quantum
- Product Type: PLC CPU Module
- Communication Port: Integrated 10/100 Mbps Ethernet (Modbus TCP/IP)
- Backplane Bus: Quantum S908 I/O bus
- Programming Software: Unity Pro / Control Expert
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Weight: Approx. 460 g
- Form Factor: Single-slot Quantum rack module
- Power Supply: Supplied via Quantum backplane
- Certifications: CE, UL (refer to official Schneider Electric datasheet for full certification list)
Key Features & Benefits
- Integrated Ethernet Port: Native Modbus TCP/IP eliminates the need for a separate NOE communication module in many applications, reducing rack space and cost.
- High Processing Performance: Handles complex ladder logic, function block, and structured text programs with fast scan cycle times suitable for real-time process control.
- Unity Pro / Control Expert Compatible: Fully supported by Schneider Electric’s current engineering software, enabling modern programming, diagnostics, and firmware management.
- Hot Standby Ready: Supports redundant CPU configurations when paired with appropriate Quantum hot standby modules, ensuring maximum system availability.
- Broad I/O Compatibility: Works with the full range of Modicon Quantum discrete, analog, and specialty I/O modules across local and remote racks.
- Proven Field Reliability: Deployed in thousands of installations globally across critical infrastructure and manufacturing environments.
Industry & Equipment Applications
- Oil & Gas: Pipeline SCADA systems, compressor station control, wellhead automation
- Water & Wastewater: Pump station control, treatment plant process automation
- Power Generation & Utilities: Substation automation, turbine control auxiliaries
- Automotive Manufacturing: Assembly line control, robotic cell coordination
- Chemical & Petrochemical: Batch process control, reactor management
- Mining & Minerals: Conveyor systems, crusher control, plant-wide DCS integration
System Integration & Compatible Parts
The 140CPU43412A is designed to operate within the Modicon Quantum rack ecosystem. Commonly paired components include:
- Power Supply Modules: 140CPS11420, 140CPS21400, 140CPS52400
- Rack Backplanes: 140XBP01600, 140XBP01000, 140XBP00600
- Ethernet Communication Modules: 140NOE77100, 140NOE77101
- Discrete I/O Modules: 140DDI35300, 140DDO35300, 140DAI54300
- Analog I/O Modules: 140AII33000, 140AVI03000, 140AVO02000
- Hot Standby Module: 140CPU43412A (paired unit) + 140CHS21000
Our Quality Assurance Process
At Konmask.com, every Schneider Electric 140CPU43412A unit we supply undergoes a rigorous multi-stage verification process before shipment:
- Source Verification: Units are sourced from authorized distributors, certified resellers, or directly from decommissioned OEM installations with documented provenance.
- Visual Inspection: Each module is inspected for physical damage, corrosion, missing components, and label integrity.
- Functional Testing: Where applicable, modules are bench-tested to confirm power-on behavior and communication port functionality.
- Packaging: Anti-static packaging with moisture barrier bags and foam cushioning to ensure safe international transit.
- Documentation: Test reports and product condition reports available upon request.
How to Order
- Submit your inquiry via the Contact Us page or email support@konmask.com.
- Provide your required quantity, delivery timeline, and destination country.
- Receive a formal quotation within 1 business day.
- Confirm order and arrange payment via agreed terms (T/T, L/C, or other).
- Shipment dispatched with full tracking and commercial documentation.
Why Choose Konmask.com?
- ✅ Specialized in industrial automation components — PLC, DCS, HMI, drives, and more
- ✅ Global B2B supply with export documentation support
- ✅ Fast response — quotations within 24 hours
- ✅ Flexible MOQ — single units to bulk orders accepted
- ✅ Experienced team with deep technical knowledge of Schneider Electric Modicon systems
- ✅ Secure packaging and reliable international logistics partners
Frequently Asked Questions
Q: Is the 140CPU43412A still in production by Schneider Electric?
A: The 140CPU43412A is part of the Modicon Quantum legacy platform. While Schneider Electric has introduced newer platforms, the Quantum series remains widely supported and spare parts are actively available through authorized channels and specialist suppliers like Konmask.com.
Q: What is the difference between 140CPU43412A and 140CPU43412?
A: The “A” suffix typically denotes a hardware revision. Both are functionally equivalent for most applications, but always verify firmware compatibility with your existing system configuration before substitution.
Q: Can this CPU be used in a hot standby redundant configuration?
A: Yes. The 140CPU43412A supports Quantum Hot Standby configurations when paired with the appropriate redundancy modules and cabling. Consult your system architecture documentation or contact us for guidance.
Q: What programming software is required?
A: The 140CPU43412A is programmed using Schneider Electric Unity Pro or its successor, EcoStruxure Control Expert (formerly Unity Pro XL). Both IEC 61131-3 and legacy Concept migration paths are supported.
Q: Do you provide a warranty on this module?
A: Yes. Konmask.com provides a standard warranty on all supplied modules. Warranty terms are specified in the quotation. Contact us for details specific to your order.
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