SCHNEIDER 140CPU53414B – Concept processor 80486 Modicon Quantum

The Schneider Electric Modicon 140CPU53414B CPU is one of the main CPUs of the Quantum Series. It is no long in production from Schneider, but aotewell do still have new and refurbished units available. To make sure this is the CPU is the one for your system we have the notes and overview below.

– The 140CPU53414B is functionally identical to the non-B version, however the following must be considered:
– If you are using the CPU in a hot standby system, you must use either two non-A versions, two A versions, or two B versions.     – The B version required a new flash exec.
– The B version, A version, and non-A flash execs are not interchangeable.
– Schneider software (Concept, ProWorx, and Modsoft) supports the B version.

CPU Module – The following shows the 140CPU53414B CPU module and its components




Concept processor 80486 Modicon Quantum – with mathematical coprocessor

140CPU53414B Characteristics


range of product
Modicon Quantum automation platform
product or component type
software name
ProWORX 32
processor name
mathematical coprocessor


clock frequency
100 MHz
memory description
Internal RAM 2972 kB
exact time for 1 Kinstruction
0.1…0.5 ms LL984
watchdog timer
250 ms
clock drift
+/-8 s/day at 32…140 °F (0…60 °C)
I/O words
30 I/32 O distributed
64 I/64 O max local
64 I/64 O remote
I/O words/network
500 I/500 O distributed
63 distributed
number of drops
31 remote
number of network
2 remote
3 distributed
battery type
Lithium 10 µA 420 µA
battery capacity
1.2 Ah
battery life
10 yr
switch function
Key switch
bus current requirement
1250 mA
module format
product weight
1.87 lb(US) (0.85 kg)


product certifications
FM Class 1 Division 2
CSA C22.2 No 142
UL 508
resistance to electrostatic discharge
4 kV contact conforming to IEC 801-2
8 kV on air conforming to IEC 801-2
resistance to electromagnetic fields
9.14 V/yd (10 V/m) 80…2000 MHz conforming to IEC 801-3
ambient air temperature for operation
32…140 °F (0…60 °C)
ambient air temperature for storage
-40…185 °F (-40…85 °C)
relative humidity
95 % without condensation
operating altitude
<= 16404.2 ft (5000 m)

Ordering and shipping details

Discount Schedule
Nbr. of units in pkg.
Package weight(Lbs)
Country of origin

Offer Sustainability

Sustainable offer status
Green Premium product
RoHS (date code: YYWW)
Compliant  – since  1007  –  Schneider Electric declaration of conformity Schneider Electric declaration of conformity
Reference not containing SVHC above the threshold
Product environmental profile
Product end of life instructions

Contractual warranty

Warranty period
18 months
140CPU53414B Specifications
Manufacturer: Modicon Quantum
Series: Quantum CPUs
Weight: 2 lb
Product or component: Processor
Software name: Concept
ProWORX 32
Processor name: 80486
Mathematical coprocessor: With
Clock frequency: 100 MHz
Memory description: Internal RAM 2972 kB
Exact time for 1 Kinstruction: 0.1…0.5 ms LL984
Watchdog timer: 250 ms
Clock drift: +/-8 s/day at 0…60 °C
I/O words: 64 I/64 O remote
64 I/64 O max local
30 I/32 O distributed
I/O words/network: 500 I/500 O distributed
Drops/Network: 63 distributed
Number of drops: 31 remote
Number of network: 3 distributed
2 remote
Battery type: Lithium 10 µA 420 µA
Battery capacity: 1.2 AH
Battery life: 10 yr
Switch function: Key switch
Marking: CE
Bus current requirement: 1250 mA
Module format: Standard

Schneider Electric Modicon 140CPU53414B Technical FAQs

1、Which Quantum controllers support Concept IEC Hot Standby?

140CPU53414A 140CPU53414B

2、Which Quantum PLCs have the Factory Mutual (FM) Class 1 Div. 2 rating?

All Quantum CPUs are FM Class 1 Div 2 approved.
140CPU652 60
140CPU65160S (SIL 3 / ATEX Zone 2/22) This CPU meets and exceeds the FM Class 1 Div. 2 rating
140CPU67160S (SIL 3 / ATEX Zone 2/22) This CPU meets and exceeds the FM Class 1 Div. 2 rating

3、Wrong 140CPU53414B file delivered with CD OS V2.5 for UnityPro V3.1

Goals and Symptoms

If you want to upgrade a Quantum Plc from Concept to Unity, you have to use a intermediate OS before loading the UnityPro OS. For the 140CPU534B is delivered a wrong intermediate OS.

Facts and Changes

UnityPro V3.1, CD OS V2.5

Causes and Fixes

A usable intermediate OS is available on [email protected]: Modicon Quantum / Software/Firmware / 140CPU53414B firmware upgrade for Unity users, Version V2.32, 15 Jun 2007. The intermediate OS for V2.32 “concept_to_unity_53414b.bin” can also be used for the OS V2.5.

4、What is the replacement part number for the Quantum 140CPU53414U?

The replacement part number is the Quantum 140CPU53414B. As of 2015 the 140CPU53414B controllers are obsolete due to parts obsolescence and it is recommended to go to the Quantum Unity based hardware.

NOTE: The Quantum Unity based processors will be end of life on 12/31/18 and replaced with the M580 that is currently now being sold.

5、Can I mix a Quantum 140CPU53414A with a 140CPU53414B in the same Hot Standby System?

No. The Quantum hardware models must match in a Quantum Hot Standby System. A Hot Standby System must have two 140CPU53414A or two 140CPU53414B CPU modules.

Dimensions Drawings

Racks for Modules Mounting
Dimensions of Modules and Racks

Product manuals

# File Description Date added File size Downloads
1 pdf Schneider Modicon Quantum automation platform CPUs 140CPU53414B Schneider Modicon Quantum automation platform CPUs 140CPU53414B
12/21/2017 16:00 87 KB 89