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MANUFACTURER: Schneider electric 


PRODUCT TYPE INFO: Modicon Quantum

2 in stock
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2 Year warranty


Part Number140CPU42402
ManufacturerSchneider Electric
SeriesModicon Quantum
Model #140CPU42402
Warranty2 Year

Our Repair Services

MRO Electric repairs CNCs, PLCs, Servo/Spindle Drives, Motors, Amplifiers, VFDs, HMIs, and more, most of which can be repaired in only 3-5 days.

Repair Benefits

MRO can restore your failed 140CPU42402 to remanufactured condition and save you up to 75% compared to buying new. We offer standard repair pricing to ensure you the best value for your repair.

Our certified technicians use rigorous testing procedures to ensure your parts are restored to fully functioning condition. Our team proudly stands behind all repairs by providing a minimum 2 year warranty.

Our technicians have vast experience with most manufacturers and models. In addition to this 140CPU42402 we also repair drives, motors, PLCs and more, so if you don’t see the model you need, please contact us.

Core Exchange

If you are interested in getting credit for your faulty 140CPU42402, just let us know and we can issue you an RMA to send it in as an exchange. Our exchange program provides you with savings and keeps us stocked for the next time you need anything.

  • Shipping Weight : 1lb

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What is the replacement for 140CPU42402?

  • The replacement for the 140CPU42402 is the 140CPU43412A.

Additional Information

Schneider Electric 140 CPU 424 02 Overview

The Modicon 140 CPU 424 02is a CPU interface support module designed to work on the Modicon Quantum Automation system.  It is manufactured by Schneider Electric in a standalone configuration. The Modicon controller module 140 CPU 424 02 can support up to 6 option module interfaces.


The specifications for the Quantum hardware for the Modicon controller module 140 CPU 424 02 are a max IEC program of 570 K, an SRAM size of 2 M, and 1.8 A of bus current required. The available registers for this unit are 64 k, and the ladder logic is also 64 k.

The front of the 140 CPU 424 02 CPU has the part module number and description which is color-coded. The area directly beneath the part number is the LED placement. The 140 CPU 424 02 CPU has a removable door with a customer identification label beneath the LED area. Under the door flap, is where you will find the connections and the battery placement.  The battery placement is inside the middle section. Directly under the battery are two slots for memory protection and comm parameter slide switches. There are three connectors beneath the slide switch location. One Modbus connector, one Modbus connector for channel A and one Modbus plus connector for channel B.


The Modbus module has one (1) serial port (9-pin D-shell), and the Modbus Plus has (2) two redundant network ports (9-pin D shell).  The power-up diagnostics are RAM, RAM address, Executive checksum, User Logic Check, and processor. The Runtime diagnostics are RAM, RAM address, Executive Checksum, and user logic check.  The bus current required for the Modicon 140 CPU 424 02 is 1.8 A. The power dispensation is 9 W., and the TOD clock is +/- 8.0 seconds/day 0 ... 60 ° C.The max number of NOM, NOE, and MMS modules connections is 6. Any combination of NOM, NOE, and MMS modules can be used.

The LED descriptions are as follows. Green will indicate the CPU has passed the power-up diagnostics and is ready. It will stay green for starting and solving logic in RUN mode. Green also indicates communications are active on Modbus as well as Modbus Plus. The Amber color indicates memory is write-protected. The red indicator has Error A and Error B.  Error A indicates the redundant Modbus Plus port A has a communications error. Error B indicates the redundant Modus Plus port B has a communications error.

The 140 CPU 424 02 controller module has a max of 64 k in and 64 k out words on the local I/O backplane. The max number of I/O racks is 2 with a required expander. The remote I/O has a max I/O of 64 in and 64 out words per drop and 31 max number of remote drops. The distributed I/O has a max of 3 remote drops which requires the use of the 140NOM2x00 Option Module. The distributed I/O has a max of 500 in and 500 out words per network.

The Schneider Electric 140CPU42402 Modicon Quantum module comes with a two-year warranty.

Related Products

Check out the rest of our Schneider Electric product line. Whether it's using our online instant quote feature, giving us a call at (800) 691-8511, or sending us an email at, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like 140CPU42402, take a look at more from our Modicon Quantum line. If your current unit has gone bad, take advantage of our Core Exchange program for the most inexpensive route. You can learn more about this program on our FAQ page here. We offer a repair service on all of our products that keep your downtime to a minimum. To stay up to date on manufacturer news, as well as access any of our datasheets, manuals, or other documentation, we suggest you take a look at our blog.


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Drive is installed and working great. Thank you for all of your assistance in getting our PO processed.


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MRO was very communicative with keeping us updated on our order. There was a slight delay in shipping, but Joe kept us u...