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Schneider Electric 140CPU31110C

140CPU31110C Unity Processor, 66 MHz, Modbus Plus, HazLoc -

MPN140CPU31110C
Obsolete

Schneider Modicon Quantum Unity Processor, 140CPU31110C, 66 MHz clock, 548 kB internal RAM, integrated Modbus Plus and Modbus, HazLoc approved.

$4,440.00 – $6,280.63Ref. price · indicative, final on quote
Schneider Electric 140CPU31110C datasheet (PDF)
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Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

140CPU31110C key specifications
ParameterValue
Range of productModicon Quantum automation platform
Product or component typeUnity processor
Integrated connection type1 Modbus Plus 2 Modbus
Bus current requirement1800 mA
Clock frequency66 MHz
Electrical connection1 female connector SUB-D 9 for connecting to the Modbus Plus network 2 female connectors SUB-D 9 for connecting to the Modbus bus
Maximum number of connections1 USB 2 AS-Interface - distributed 2 Ethernet TCP/IP - local 2 Modbus Plus - local 2 Modbus RS232/485 Modbus/ASCII) 2 Profibus DP - local 4 AS-Interface - remote
StandardsHazLoc
ChecksProcess control
CategoryUS1PC2118150
Number of racks2 - local
Number of slots2 16 6 10 4

All specifications

140CPU31110C additional specifications
ParameterValue
Switch functionSlide switch communication port : ASCII/RTU/Memory Slide switch memory port/off
System overhead0.2 ms fast task 1 ms master task
Local signalling1 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)
Memory descriptionInternal RAM 548 kB
Analogue i (O number)Unlimited (27 slots max) - local 500 inputs, 500 outputs - distributed - per network Modbus Plus 1984 inputs,1984 outputs - S908 remote I/O
Discrete i (O number)Unlimited (27 slots max) - local 31744 inputs, 31744 outputs - remote 8000 inputs, 8000 outputs - distributed - per network Modbus Plus
Protective treatmentConformal coating Humiseal 1A33
Application structure1 cyclic/periodic master task - 1 periodic fast task - 16 timer interrupt tasks - 64 I/O interrupt tasks - 64 interrupt tasks - No auxiliary task -
Application specific i (O)Counter Accurate time stamping Serial link High-speed interrupt inputs
Number of optional modules2 Ethernet, Modbus, Modbus Plus, Profibus DP, Sy/Max)
Number of remote i (O station)31 - 2 S908 remote I/O 0 - 0 ethernet remote I/O
Number of instructions per1.86 Kinst/ms 100 % Boolean 2.49 Kinst/ms 65 % Boolean and 35 % numerical
Execution time per instruction0.1...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 distributed i (O station)63 1 3 Modbus Plus

Product details

Processor Overview

The 140CPU31110C is a Modicon Quantum Unity processor from the Modicon Quantum automation platform. It runs at 66 MHz and carries 548 kB of internal RAM. Two integrated Modbus Plus ports and two Modbus ports provide connectivity. The processor supports up to 2 local racks with a mix of slots.

This processor is marked obsolete by the manufacturer. There is no official successor listed.

I/O Architecture & Memory

Discrete I/O capacity reaches 31,744 inputs and 31,744 outputs local, with additional remote and distributed capacity via Modbus Plus and S908 remote I/O. Analogue I/O is unlimited within 27 local slots, supporting up to 500 inputs and 500 outputs per Modbus Plus network. Memory includes 548 kB RAM for logic and data.

Environmental & Certifications

The unit is conformal coated (Humiseal 1A33) for protective treatment. Standards include HazLoc, indicating suitability for hazardous locations.

Frequently asked questions

What is the listed checks field for the 140CPU31110C?

The checks field is Process control.

What is the category designator for this component?

The category is US1PC2118150.

What compliance documentation does this processor carry?

The processor is certified to HazLoc standards.

MPN
140CPU31110C