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Schneider 140CPU43412 CPU

ABB CI920N 3BDS014113 Communication Interface for Industrial Automation

Schneider 140CPU43412 CPU

Name: Schneider 140CPU43412 CPU
Brand: Schneider PLC
SKU: 3667
Availability: InStock
Rating: 5.0 (1 reviews)

Brand:Schneider PLC
Item No.:140CPU43412
Product Origin:France
Product Dimensions:49 mm x 49 mm x 6.3 mm
Product Weight:0.85kg
Payment:T/T, Western Union, Credit Card
Goods_stock:15
Shipping Port:Xiamen, China
Lead Time:1-3 Days
Condition:Brand New And Original
Warranty:1 Year
Certificate:COO
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Product Details
Product Applications
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Technical FAQs
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Introduction — Robust Central Processing for Modicon Quantum

The Schneider Electric is a high-performance CPU Module from the Modicon Quantum automation platform. Serving as the central processing unit in a rack-based PLC system, it executes control logic, manages I/O scanning, and handles communications across distributed networks. Built for demanding industrial environments, this module delivers reliable, real-time performance for process automation, manufacturing, and infrastructure applications.

Technical Specifications

Specification	Details
Model	140CPU43412
Module Type	CPU / Processor Module
Platform	Modicon Quantum PLC
Processor	80486 architecture, 66 MHz clock
Internal RAM	~2 MB SRAM (supports large program capacity)
Performance	~0.1–0.5 ms per 1K instructions (typical)
Communication Ports	1 × Modbus Plus, 2 × Modbus RS‑232/RTU
I/O Capacity	Up to 64 inputs & 64 outputs locally; supports extensive distributed I/O networks
Battery Backup	Integrated lithium battery for SRAM retention (~10 years typical)
Operating Temp.	0 °C to +60 °C
Storage Temp.	−40 °C to +85 °C
Bus Current Requirement	~1250 mA
Weight	~0.85 kg
Mounting	Backplane-mounted in Quantum rack

Applications — Ideal for Enterprise-Scale Automation

Process Control Systems: Central logic for chemical, power, and utility automation.
Manufacturing Lines: Manages high-speed, coordinated machine control.
Distributed I/O Networks: Supports hundreds of remote inputs/outputs across networked racks.
Infrastructure Control: Reliable core CPU for transportation, facility automation, and critical systems.
High Availability Architectures: Can be paired with redundant power and hot standby modules for fault-tolerant systems.

Advantages — Key Benefits

Real-Time Processing: Efficient execution of ladder logic and IEC programs.
Network Integration: Multiple serial and Modbus Plus interfaces for flexible connectivity.
Scalable I/O Support: Handles large local and distributed I/O networks.
Long-Life Battery Backed Memory: Protects critical logic and data during power interruptions.
Industrial Durability: Designed to perform reliably under typical plant conditions.

Technical FAQs

What type of PLC platform uses the 140CPU43412?
It is designed for Schneider’s Modicon Quantum automation platform.
What processor does this CPU use?
A 80486 architecture running at 66 MHz.
How much program memory does it support?
Approximately 2 MB SRAM, suitable for medium-to-large control programs.
Which communication interfaces are included?
One Modbus Plus port and two Modbus RS‑232 ports.
Can this CPU manage distributed I/O?
Yes — it supports extensive remote and distributed I/O configurations.
Does it retain memory on power loss?
Yes — internal battery provides SRAM retention for years.
What is the operating temperature range?
0 °C to +60 °C.
How much bus current does it require?
Around 1250 mA from the PLC backplane.
Is this CPU suitable for modern automation systems?
It’s suited for legacy Modicon Quantum systems; modern Unity or EcoStruxure platforms may require different CPUs.
Is the module still supported?
Many older Quantum CPUs are obsolete, but replacement or migration paths exist.

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