Product Details

The Schneider 140CPU11303 processor module is the core control unit of Modicon Quantum PLC automation platform, designed for medium and large scale industrial process control applications. This modicon quantum cpu module adopts 80186 processor with 20MHz clock frequency, equipped with 368kB battery-backed internal RAM and no built-in floating-point coprocessor. It supports LL984 ladder logic and IEC61131-3 programming languages, program scan time for 1K boolean LL984 instructions is 0.3ms to 1.4ms. This CPU integrates one RS232 Modbus port and one Modbus Plus communication port, supporting data exchange with local I/O, remote distributed I/O, touch screens and other field automation devices. It can support maximum 64 local I/O words, 64 remote I/O words and 30/32 distributed I/O words, up to 31 remote drops and 63 distributed drops. A fixed 250ms hardware watchdog timer is configured to detect abnormal program execution and trigger safety protection automatically. The onboard lithium battery retains RAM data and real-time clock information, the clock drift is ±8 seconds per day within 0~60℃ operating temperature range. Programming can be completed by ProWORX 32 or Concept software platform. It can be directly plugged into Quantum backplane rack and cooperate with full series of Quantum power supply, I/O and communication modules to build complete distributed control systems. This original Schneider product was discontinued on May 31,2015 and end-of-service on Dec 31,2025, widely stocked as spare replacement parts for maintenance and upgrade of legacy industrial automation systems. It is widely deployed in power, petrochemical, metallurgy, water treatment and manufacturing plants as the core controller for medium and large Modicon Quantum automation racks.

Brand: Schneider Electric

Model: 140CPU11303

Series: Modicon Quantum

Type: PLC Processor Module

Processor: 80186, 20MHz

Memory: 368kB battery-backed RAM

Communication: 1 x RS232 Modbus,1 x Modbus Plus

Watchdog: 250ms hardware watchdog

Program Software: ProWORX 32, Concept

Feature: Support LL984 and IEC61131-3,distributed and remote I/O control

Mounting: Plug into Modicon Quantum rack backplane

Operating Temperature: 0℃ ~ 60℃

Weight: 0.7kg

Status: Discontinued original spare part,end-of-service 2025

Certification: CE

Application: Core control processor for medium and large Modicon Quantum PLC industrial automation racks