Schneider 140CPU43412A Modicon Quantum Concept Processor

Technical Specifications

Model：140CPU43412A

Brand：Schneider

Product Type：Concept processor,Modicon Quantum automation platform,legacy LL984 controller

Processor：80486 CPU with integrated math coprocessor

Clock Frequency：66 MHz

Internal RAM：896 kB

Program Software：ProWORX32, Concept

Instruction Speed：0.1‑0.5 ms per 1K LL984 instructions

Watchdog Timer：250 ms

Local Racks：2 local racks

Remote I/O Stations：Max 31 remote I/O stations

Discrete I/O：31744 inputs,31744 outputs(remote)

Analog I/O：1984 inputs,1984 outputs(remote)

Integrated Interfaces：1×Modbus Plus(SUB‑D9),2×Modbus RS232(SUB‑D9)

Optional Communication Modules：Max 6 communication modules

Real‑Time Clock：±8s/day accuracy(0‑60℃)

Backup Battery：1.2Ah lithium battery,10‑year service life

Bus Current Consumption：1250mA

Weight：0.85kg

Mounting：Quantum backplane rack mounting

Protection Grade：IP20

Working Temperature：0℃ ~ +60℃

Storage Temperature：‑40℃ ~ +85℃

Application：Chemical industry,power plant,water treatment,metallurgy,legacy Quantum PLC system maintenance and spare‑part replacement。

Product Details

 140CPU43412A is legacy high‑performance Concept processor for Schneider Modicon Quantum platform,running LL984 logic,programmed by ProWORX32 or Concept software,designed for medium‑large industrial process control.

It adopts 80486 processor with independent math coprocessor at 66MHz clock frequency,equipped with 896kB internal RAM,lithium backup battery keeps program and data after power loss. The watchdog timer is 250ms and real‑time clock supports time‑stamp for process events.

This CPU integrates Modbus Plus peer‑to‑peer network and dual Modbus RS232 serial ports,supports up to 6 optional communication modules for network expansion. It supports 2 local racks and maximum 31 remote I/O stations to build large‑scale distributed I/O architecture. Panel key switch provides run/stop/program write‑protect mode for site security management.

Suited for chemical,power,water‑treatment and metallurgy field. It is widely used as replacement spare‑part for existing legacy Quantum control systems.