140CPU43412UC
Schneider Electric
Overview
The 140CPU43412UC is an Unity processor in the Modicon Quantum automation platform range from Schneider Electric. It is engineered for industrial automation duties within the Modicon Quantum ecosystem.
Application & Technical Notes
As an unity processor, the 140CPU43412UC is intended for deployment in panel-based control cabinets and machine enclosures where Modicon Quantum equipment is installed. It hosts the application program, executes the control cycle and orchestrates I/O scanning, communication and diagnostics for the station.
Specific electrical and mechanical ratings depend on the exact configuration and suffix of the part; the original datasheet should be consulted for the definitive specification.
Maintenance & Diagnostics
Back up the application program and parameter set before any firmware or hardware change; verify the memory/real-time-clock battery where fitted and replace on schedule. Monitor the module health LED and controller diagnostics; plan spares for critical stations to minimise downtime. Always de-energise the circuit and follow lock-out/tag-out before handling; refer to the official instruction bulletin for service procedures.
Sourcing & Procurement
When sourcing the 140CPU43412UC, distinguish three supply tiers: (1) genuine Schneider Electric stock from an authorised distributor; (2) compatible equivalents or surplus/NOS (new-old-stock) from third parties; (3) alternative parts offering equivalent function. Genuine supply carries the full warranty and traceability; compatible or alternative items may be cheaper but should be validated for form, fit, firmware and certification before use in a live system. PLCXpert publishes this page as an independent reference and does not sell the part — verify every claim with the manufacturer or your distributor.
Confirm the CPU matches your Modicon Quantum architecture, memory size, firmware revision and any required option/communication modules. Lead times and pricing vary by region and lifecycle status; obtain a current quote from an authorised channel rather than relying on stale listings.
Frequently Asked Questions
What is the 140CPU43412UC?
The 140CPU43412UC is an unity processor in the Modicon Quantum automation platform range from Schneider Electric. It is described by the manufacturer as: Unity processor.
What are the key technical ratings of the 140CPU43412UC?
The definitive ratings depend on the exact configuration; consult the original datasheet or the source PDF linked on this page for the complete table.
How is the 140CPU43412UC mounted or installed?
Installation follows the standard Modicon Quantum mounting practice for this device class; refer to the installation manual for exact dimensions and torque.
Is the 140CPU43412UC compatible with my controller?
It is part of the Modicon Quantum family. Confirm the specific rack, firmware revision, slot rules and configuration with the controller documentation before purchase, as compatibility depends on the exact system build.
What should I check before buying the 140CPU43412UC?
Verify the genuine part number and suffix, confirm it matches your platform and ratings, check the current lifecycle/availability status, and buy from an authorised distributor. PLCXpert provides this reference only and does not sell the component.
Specifications
The 140CPU43412UC is a CPU module from Schneider Electric's Modicon Quantum series. This unit operates at a clock frequency of 66 MHz, accommodating two racks and offering extensive input and output capabilities.
Description
| Note | The part number 140CPU43412UC from Schneider Electric is a robust CPU module within the Modicon Quantum series. With a clock frequency set at 66 MHz, it is engineered to support two racks for versatile mounting options. This CPU module features impressive memory capacity, equipped with 1056 KB of RAM to enhance data processing and storage. In terms of remote I/O functionalities, the module can manage a total of 31 remote I/O stations, offering extensive input and output capabilities of 31.7K inputs and 31.7K outputs. It excels in managing high-speed interrupts and counters, optimizing response times with execution times for Boolean operations ranging from 0.12 to 0.59 microseconds. Furthermore, this unit supports distributed I/O configurations with an additional capacity of 8K inputs and 8K outputs. For communication, it includes 1 Modbus Plus port and 2 Modbus ports, facilitating robust networking and data exchange. The CPU module requires a power supply of 1800 mA at 5 V for operation and can accommodate up to 6 optional modules for enhanced functionality. It is also equipped with 7 indicator LEDs to display operational statuses, ensuring efficient monitoring. With its capabilities, the 140CPU43412UC is a critical component for high-performance control systems. |
|---|---|
| Range of Product | Modicon Quantum automation platform Product or Component Type Unity processor |
Complementary
| Clock frequency | 66 MHz |
|---|---|
| Number of slots | 16 6 4 10 2 |
| Number of racks | 2 - local |
| Number of distributed I/O station | 63 1 3 Modbus Plus |
| Number of remote I/O station | 31 - 2 S908 remote I/O 0 - 0 ethernet remote I/O |
| Discrete I/O number | 31744 inputs, 31744 outputs - remote 8000 inputs, 8000 outputs - distributed - per network Modbus Plus |
| Unlimited (26 slots max) - local | N/A |
| Analogue I/O number | 500 inputs, 500 outputs - distributed - per network Modbus Plus 1984 inputs,1984 outputs - S908 remote I/O |
| Unlimited (26 slots max) - local | N/A |
| Application specific I/O | High-speed interrupt inputs Counter Accurate time stamping Serial link Number of optional modules 6 Ethernet, Modbus, Modbus Plus, Profibus DP, Sy/Max) |
| Maximum number of connections | 2 AS-Interface - distributed 2 Modbus RS232/485 Modbus/ASCII) 4 AS-Interface - remote 6 Ethernet TCP/IP - local 6 Modbus Plus - local 6 Profibus DP - local |
| Integrated connection type | 1 Modbus Plus 2 Modbus |
| Checks | Process control |
| Memory description | Internal RAM 1056 kB |
| Switch Function | Slide switch communication port : ASCII/RTU/Memory Key switch memory start/stop memory protection |
| Application structure | 1 cyclic/periodic master task - 1 periodic fast task - 16 timer interrupt tasks - 64 I/O interrupt tasks - 64 interrupt tasks - No auxiliary task - |
| Execution time per instruction | 0.1...0.27 µs floating points 0.1...0.27 µs on fixed-point arithmetic 0.12...0.585 µs Boolean 0.12...0.585 µs on word |
| Number of instructions per ms | 1.86 Kinst/ms 100 % Boolean 2.49 Kinst/ms 65 % Boolean and 35 % numerical |
| System overhead | 0.2 ms fast task 1 ms master task |
| Bus current requirement | 1800 mA |
| Local signalling | 1 LED (green) for communications are active on the Modbus Plus port (Modbus Plus) 1 LED (green) for communications are active on the Modbus port (Modbus) 1 LED (green) for CPU has been started and is solving logic (RUN) 1 LED (green) for CPU has passed the power-up diagnostic tests (READY) 1 LED (orange) for write-protected memory (memory port) 1 LED (red) for battery needs replacing or is not present (BAT LOW) 1 LED (red) for communications error on the Modbus Plus port (ERROR A) |
| Electrical connection | 1 female connector SUB-D 9 for connecting to the Modbus Plus network 2 female connectors SUB-D 9 for connecting to the Modbus bus |
Environment
| Protective treatment | Conformal coating Humiseal 1A33 |
|---|---|
| Product Certifications | CSA CE UL |
| Misc (Marine) | GOST |
| Standards | HazLoc |
Reproduced from the manufacturer's published data. Values marked "Not available" are absent from the source document.