Schneider Electric 140CPU43412A Quantum Series 32MB Memory Module

Description

Application Scenarios

At a major offshore oil platform in the North Sea,operators faced intermittent control delays during emergency shutdown(ESD)sequences due to CPU overload in the aging automation system.The root cause was traced to an underpowered controller struggling with real-time data from hundreds of I/O points.Replacing it with the 140CPU43412A transformed system responsiveness:its 32MB RAM and optimized processing engine reduced logic scan times from 120ms to under 25ms.During a simulated ESD test,the 140CPU43412A executed all safety interlocks within 15ms—well within SIL-2 compliance thresholds.This upgrade not only restored safety integrity but also minimized false trips.The 140CPU43412A proved itself as the intelligent core of a high-availability control system,where milliseconds define the difference between safe operation and catastrophic failure.

Parameter

Main Parameters Value/Description

Product Model 140CPU43412A

Manufacturer Schneider Electric

Product Category PLC CPU/Controller Module

Series Modicon Quantum

Memory 32 MB RAM(User+System)

Processor Type High-Performance 32-bit RISC

Redundancy Support Hot-Standby(Dual Redundant Configuration)

Communication Interfaces 1x 10/100 Mbps Ethernet(Modbus TCP/IP),1x Modbus Plus(MB+)

I/O Scanning Rate Configurable,down to 25 ms(typical)

Programming Software Unity Pro XL

Operating Temperature 0°C to+60°C

Power Supply+5V DC from Quantum Backplane

Certifications CE,UL,CSA,FM,ATEX(via system configuration)

Technical Principles and Innovative Values

Innovation Point 1:The 140CPU43412A features 32MB of integrated RAM—double the memory of earlier Quantum CPUs—enabling larger control programs,extensive data logging,and advanced diagnostics without compromising scan speed.This makes it ideal for complex batch and safety-critical processes.

Innovation Point 2:With native support for hot-standby redundancy,the 140CPU43412A allows one CPU to take over instantly(<100ms)if the primary fails,ensuring uninterrupted control.Synchronization occurs via the Quantum backplane,eliminating external cabling and single points of failure.

Innovation Point 3:Dual communication ports(Ethernet and Modbus Plus)enable simultaneous connectivity to HMI networks,enterprise systems,and legacy field devices.The 140CPU43412A acts as a bridge between modern IP-based systems and established industrial networks.

Innovation Point 4:Built on the Unity Pro XL platform,the 140CPU43412A supports advanced programming languages(LD,FBD,SFC,ST,IL)and integrated safety logic,allowing engineers to implement complex control strategies with certified reliability.

Application Cases and Industry Value

In a large municipal water treatment plant in Canada,the SCADA system frequently lost communication with remote pumping stations due to CPU bottlenecks.After upgrading to the 140CPU43412A,the system handled over 8,000 I/O points with consistent 30ms scan cycles.Operators reported zero communication timeouts over a 12-month period.The 140CPU43412A’s Ethernet interface enabled seamless integration with the plant’s new IIoT gateway,allowing real-time energy consumption analytics.This deployment extended the life of the existing Quantum infrastructure by over 10 years,avoiding a costly system-wide replacement while improving operational visibility and energy efficiency.

Related Product Combination Solutions

140CHS91100:10-slot Modicon Quantum chassis designed to house the 140CPU43412A,supporting up to 160 I/O modules per rack.

140NOE77101:10/100Mbps Ethernet module that complements the 140CPU43412A for additional network segmentation or OPC communication.

140CRP93100:Redundant power supply module,ensuring stable+5V backplane power for the 140CPU43412A in critical applications.

140DDI35300:Discrete input module compatible with the 140CPU43412A,used for monitoring pump status and valve positions.

140ACI03000:Analog input module for integrating flow meters and pressure transmitters into the 140CPU43412A-controlled system.

Unity Pro XL Software:Engineering suite for programming,simulating,and diagnosing the 140CPU43412A with advanced debugging tools.

140CPU65150:Higher-end Quantum CPU with floating-point math support,suitable for migration when advanced calculations are needed.

Modicon M580 ePAC:Next-generation Schneider PLC that can integrate with 140CPU43412A systems via gateway modules during phased upgrades.

Installation,Maintenance,and Full-Cycle Support

Installing the 140CPU43412A is straightforward:insert the module into the designated CPU slot in a Quantum chassis,secure it with the locking clip,and connect programming or network cables as needed.In redundant configurations,install a second 140CPU43412A in the companion slot and enable hot-standby mode via Unity Pro.The CPU automatically synchronizes with its peer and begins operation within seconds.

Routine maintenance includes checking LED status indicators(RUN,COMM,FAULT),ensuring adequate ventilation,and performing periodic firmware updates.The 140CPU43412A supports online diagnostics and remote monitoring via Modbus TCP,enabling predictive maintenance.If a failure occurs,the module can be replaced under power in under 5 minutes,minimizing downtime.We provide full technical support,including configuration files,firmware archives,and compatibility verification with legacy Quantum systems.

ABB 5SHY4045L0006 3BHB030310R0001 3BHE039203R0101 GVC736CE101 5SHY4045L0006 3BHB030310R0001 3BHE039203R0101 GVC736CE101 ABB GRID BREAKER UNIT GBU72 3BHE055094R0002 3BHE031197R0001 3BHB030310R0001 In stock!!! Interested parties please inquire