140CPU43412A Schneider Electric CPU Module

140CPU43412A Schneider Electric CPU Module | New & Original Stock

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Schneider Electric 140CPU43412A Modicon Quantum CPU Module Configured for high-speed logic execution and industrial network routing inside Modicon Quantum automation...

SKU: 140CPU43412A

Manufacturer: Schneider
Product No.: 140CPU43412A
Product Type: CPU Processors
Product Origin: France
Payment:T/T, Western Union
Weight: 850g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Schneider Electric 140CPU43412A Modicon Quantum CPU Module

Configured for high-speed logic execution and industrial network routing inside Modicon Quantum automation system segments, the Schneider Electric 140CPU43412A (140CPU43412A CPU Module) provides direct physical/electrical execution. This hardware unit houses an Intel 80486 microprocessor equipped with an integrated mathematical coprocessor to calculate floating-point variables and manage execution cycles. By serving as the central logical coordinator on the local backplane, this module reads discrete and analog data registers, runs cyclic industrial programs, and commands remote and distributed sub-networks via onboard serial paths.

Hardware Specifications

Parameter	Specification
Model	140CPU43412A
Brand	Schneider Electric
Origin	Germany
Weight	0.85 kg (1.87 lbs)
Dimensions	Standard single-slot Modicon Quantum module dimensions
Operating Temp	0 to 60 deg C
Power Consumption	4.5 W
Processor Type	Intel 80486 with Mathematical Coprocessor
Clock Frequency	66 MHz
Internal RAM	896 kB
Instruction Time	0.1 to 0.5 ms per 1K instructions
Watchdog Timer	250 ms
Bus Current Requirement	1250 mA
Onboard Communication Ports	1 x Modbus Plus, 2 x Modbus RS232
Local/Remote I/O Capacity	64 I / 64 O local, 64 I / 64 O remote
Distributed I/O Capacity	500 I / 500 O distributed across maximum 31 drops
Battery Configuration	Lithium, 1.2 Ah, 10-year service life
Storage Temperature	-40 to 85 deg C
Relative Humidity	95 percent relative humidity non-condensing
Maximum Operational Altitude	5000 m
Certifications	CE, UL 508, CSA C22.2 No 142, FM Class 1 Div 2

Profinet and EtherNet/IP Deterministic Network Expansion

This processor block interfaces directly with Modicon expansion modules to manage data flow across Profinet and EtherNet/IP deterministic networks. The internal backplane driver architecture maintains strict timing parity during multi-rack data mapping operations, supporting the simultaneous insertion of up to six separate communication modules (including NOM, NOE, and CR components). Local register allocation logic updates up to 500 distributed input and output words per node without dropping communication cycles. Firmware flash compatibility protocols verify packet verification hashes during runtime, preventing data corruption across the serial Modbus Plus and RS232 channels when the module handles high-density network segmentation.

Frequently Asked Questions

Q: What operational risks occur if the backplane current draw exceeds the module 1250 mA rating?

A: The 1250 mA rating defines the maximum current consumption of the CPU from the rack backplane power supply module. Exceeding the combined current thresholds of the installed rack components can cause backplane voltage drops, which trips the 250 ms internal watchdog timer and forces a system reset.

Q: How should a firmware compatibility conflict be addressed when replacing a legacy 140CPU43412A?

A: Replacement modules must run a firmware revision that matches the configuration file compiled in the legacy programming software. If an unresolvable firmware or hardware generation gap occurs, hardware migration to a Modicon M580 platform using a BMEP582040 processor is recommended.

Q: Can the internal lithium battery be hot-swapped while the CPU module is offline?

A: No. The 1.2 Ah lithium battery must only be replaced while the Quantum backplane power supply is fully energized. Removing the battery while the rack is powered down interrupts the bias voltage to the 896 kB internal RAM, erasing the user program and register configuration values.

Field Installation Guidelines

Backplane Insertion: Confirm the local backplane power supply is switched off before inserting the module into slot 1 or slot 2 of the Quantum chassis to prevent pins from shorting.
Modbus Line Shielding: Ground all Modbus Plus and RS232 serial communication cable shields at the point of entry into the enclosure using dedicated grounding bars to redirect 8 kV air ESD and high-frequency EMI.
Battery Verification: Verify the 1.2 Ah lithium battery is properly seated in the front panel compartment and check that the battery fault LED status remains unlit during initial initialization sequences.
Convective Thermal Clearances: Ensure at least 80 mm of vertical air space exists above and below the Quantum rack assembly to maintain temperatures below the 60 deg C operating threshold inside sealed industrial panels.

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Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

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We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.