Receive a Text Quote
We will send you price and availability shortly
Invalid number. Please call (800) 691-8511
Looking for a fast quote? Click here, and we'll text you.

Schneider Electric 140CPU31110

Rated 5/5 on 3 reviews

Rate this product

MANUFACTURER: Schneider Electric

DESCRIPTION: Unity Processor Modicon Quantum - 548 Kb - 66 Mhz

PRODUCT TYPE INFO: Modicon Quantum processor


8 in stock

Free Shipping

2 Year warranty

Part Number140CPU31110
ManufacturerSchneider Electric
Model #140-CPU-311-10
Warranty2 Year
Module formatStandard
Clock frequency66 MHz
Number of slots10
Number of racks2 - local rack(s)
Number of distributed I/O station63 station(s) - 1 rack(s) - 3 distributed network(s)
Number of remote I/O station31 - 2 remote rack(s)
Discrete I/O number8000 inputs, 8000 outputs - distributed - per network
31744 inputs, 31744 outputs - remote
Unlimited (27 slots max) - local
Analogue I/O number500 inputs, 500 outputs - distributed - per network
1984 inputs,1984 outputs - remote
Unlimited (27 slots max) - local
Application specific I/OAccurate time stamping
High-speed interrupt inputs
Serial link
Number of optional modules6 (Ethernet, Modbus, Modbus Plus, Profibus DP, Sy/Max)
Maximum number of connectionsUnlimited (AS-Interface) - local
4 (AS-Interface) - remote
2 (Profibus DP) - local
2 (Modbus) - RS232/485 Modbus/ASCII
2 (Modbus Plus) - local
2 (Ethernet TCP/IP) - local
2 (AS-Interface) - distributed
1 (USB)
Integrated connection type1 Modbus Plus
2 Modbus
ChecksProcess control
Memory descriptionInternal RAM 548 kB
Switch functionSlide switch communication port : ASCII/RTU/Memory
Slide switch memory port/off

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 140CPU31110 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 140CPU31110 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 140CPU31110, 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 : 2lbs

Want it shipped tomorrow?

  • Order within the next 23 hours and 38 minutes.
  • If you order between 4pm and 6pm EST, you will be charged a small rush fee.

Ask about exchanging your faulty 140CPU31110 for credit when ordering from MRO Electric

What does the 'Memory Protect' switch setting mean on the 140CPU31110?

  • When it is off, it allows you to run/stop CPU and application changes. When in not used, it should not be used as it can lead to undefined operation. When on it prohibits run/stop of CPU or modification of applications.
MRO Electric provides a 2-year warranty on every item we sell and repair. We stand behind all of our products and guarantee them for the full 2 years. If there is an issue with any of our products within the warranty period, we will evaluate the unit and repair or replace it under warranty.

Schneider Electric 140CPU31110 Overview

Unity processor 140CPU31110 Modicon Quantum is manufactured by Schneider Electric.  The Modicon 140CPU31110 - 548 kB - 66 MHz capitalizes on its ability to bring you the best in I/O modules. This module is suited for communication on fieldbuses and networks. Its real value lies in meeting your needs in the area of continuous or semi-continuous industrial processes. We understand that today’s operations have higher expectations than ever. You are expected to increase productivity as safely as possible.  These products are manufactured in France and are designed for Material handling, packaging, and textile machines usage. They come with a 2-year warranty from MRO Electric. We also carry CPUs from other manufacturers such as Modicon and ABB.


What can you expect from this central processing unit? This unit can take in the information from your I/O module and then uses the information to manage your process. It does this using the information you have programmed into it for your specific application. The output information travels to your process to provide the desired outcome to your process. The front panel of this CPU is made up of a display block with 7 LEDs. What are these LEDs? The seven LEDs include Ready LED which displays a green light when the power-up diagnosis tests are successful. Run LED which turns green when the program is executing. Modbus LED turns green when there is activity on the Modbus port.  Modbus Plus LED shows green when there is activity on the Modbus Plus port. Mem Prt LED turns orange when the memory protection switch is activated. Bat Low LED will right red when the back-up battery needs to be replaced or is missing. The last LED is the Error A LED which turns red when there is a communication fault on the Modbus Plus port. The backup battery slot is also on the front panel as well as a slide switch for selecting the Modbus port communications parameters and write-protect the memory. It features two 9-way female SUB-D connectors for connecting to the Modbus bus and a 9-way SUB-D female connector for connecting to the Modbus Plus network. A customizable identification label is available in the removable hinged door. The Schneider Electric 140CPU31110 weighs 1.698lbs.


With such a wide range of applications, the Modicon 140CPU31110 could be just the module for your needs. Schneider Electric has proven itself with decades of experience in processing architectures.

The manner in which it is able to deliver the kind of control you need for broad infrastructure sites sets it apart from the competition. Modicon Quantum is your ideal product for getting the most out of your applications. You will have your fears alleviated knowing Modicon offers the safety you have come to expect from Schneider Electric products. 

How to use a 140CPU31110

Where will you be applying the 140CPU31110? Some of the common applications for this module include:

  • Petrochemicals
  • Water treatment
  • Mines
  • Hydropower
  • Airports
  • Metallurgy
  • Energy

Get more out of the brain of your programmable logic controller. Schneider Electric has pinpointed your needs and met expectations with the Modicon Quantum unit 140CPU31110 with automation platform specifics that include a clock speed of 66 MHz and built-in math coprocessor. It features 584 KB available internal RAM. It boasts 2 Modbus RS 232/1 Modbus Plus communication ports. 

Contact Us Today For More Information About Schneider Electric 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 emailing us at, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like 140CPU31110, take a look at more from our CPUs 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 140CPU31110 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.

5 stars

4.9 Overall Satisfaction Rating

Over 1700 Ratings from Actual Customers

Read Our Reviews

Great company to work with

Anonymous Customer

Quick delivery and had what I needed.


Great and fast service. Exactly what we need.