140CPU43412UC

Technical specifications

Manufacturer

Schneider Electric

Manufacturer part no.

140CPU43412UC

Type

Modicon Quantum processor

Application

PLC controller

Used with

Modicon Quantum 140XBP backplane

Range of product

Modicon Quantum automation platform

Product or component type

Unity processor

Clock frequency

66 MHz

Number of slots

16; 6; 4; 10; 2

Number of racks

2 - local rack(s)

Number of distributed I/O station

63 station(s) - 1 rack(s) - 3 Modbus Plus network(s)

Number of remote I/O station

31 - 2 rack(s) per S908 remote I/O; 0 - 0 rack(s) per ethernet remote I/O

Discrete I/O number

31744 inputs, 31744 outputs - remote; 8000 inputs, 8000 outputs - distributed - per network Modbus Plus; Unlimited (26 slots max) - local

Analogue I/O number

500 inputs, 500 outputs - distributed - per network Modbus Plus; 1984 inputs,1984 outputs - S908 remote I/O; Unlimited (26 slots max) - local

Application specific I/O

High-speed interrupt inputs; Counter; Accurate time stamping; Serial link

Number of optional modules

6 (Ethernet, Modbus, Modbus Plus, Profibus DP, Sy/Max)

Maximum number of connections

2 AS-Interface - distributed; 2 Modbus (RS232/485 Modbus/ASCII); 4 AS-Interface - remote; 6 Ethernet TCP/IP - local; 6 Modbus Plus - local; 6 Profibus DP - local

Integrated connection type

1 Modbus Plus with; 2 Modbus with

Checks

Process control

Memory description

Internal RAM 1056 kB

Switch function

Slide switch communication port : ASCII/RTU/Memory; Key switch memory start/stop memory protection

Application structure

1 cyclic/periodic master task; 1 periodic fast task; 16 timer interrupt tasks; 64 I/O interrupt tasks; 64 interrupt tasks; No auxiliary task

Execution time per instruction

0.1...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 instructions per ms

1.86 Kinst/ms 100 % Boolean; 2.49 Kinst/ms 65 % Boolean and 35 % numerical

System overhead

0.2 ms for fast task; 1 ms for master task

Bus current requirement

1800 mA

Local signalling

1 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)

Electrical connection

1 female connector, connector type: SUB-D 9 for connecting to the Modbus Plus network; 2 female connectors, connector type: SUB-D 9 for connecting to the Modbus bus

Protective treatment

Conformal coating Humiseal 1A33

Product certifications

CSA; CE; UL; Misc (Marine); GOST

Technical documents (1)

• Schneider Electric product page 140CPU43412UC

Key features

• Integrated connection type: 1 Modbus Plus; 2 Modbus
• Application structure: 1 cyclic/periodic master task; 1 periodic fast task
• Memory description: Internal RAM 1056 kB
• Number of instructions per ms: 1.86 Kinst/ms 100 % Boolean
• Bus current requirement: 1800 mA

About the Schneider Electric 140CPU43412UC

The Schneider Electric 140CPU43412UC is a Unity processor from Schneider Electric's Modicon Quantum range, which Schneider names "Unity processor Modicon Quantum - 1056 kB - 66 MHz - coated". Its product page gives clock frequency 66 MHz and bus current requirement 1800 mA. Schneider Electric lists it as discontinued since 31 Dec 2018, with end of service on 8 Oct 2025. Schneider Electric recommends the BMEP581020H as its replacement.

What is the 140CPU43412UC used for?

The 140CPU43412UC runs the control program in a Modicon Quantum rack, exchanging data with the rack's I/O and communication modules.

Lifecycle and successor

Discontinued.

OEM successor: BMEP581020H

Before you order

What to photograph or confirm so the right unit is quoted.

Check the reference 140CPU43412UC on the module's label, with its product version. Send us a photo of the label and we will confirm the details before quoting.