Schneider 140CPU11303C Modicon Quantum Processor Module Overview

What Is the 140CPU11303C?

When your automation system demands a reliable and efficient brain for control tasks, the Schneider 140CPU11303C processor module from the Modicon Quantum series delivers. This module uses an 80186 microprocessor running at 20 MHz and includes 368 KB of internal RAM to handle complex logic and data processing. It supports up to 64 I/O words locally and 500 I/O words distributed, making it a versatile choice for mid-range industrial applications.

Technical Specifications Breakdown

The 140CPU11303C offers a watchdog timer set to 250 ms to monitor system stability and prevent lockups. Clock drift stays within ±8 seconds per day at operating temperatures from 0 to 60°C, ensuring accurate timekeeping. For I/O handling, it manages 64 input and 64 output words on remote and local systems, plus 30 input and 32 output words distributed. On a network, it supports up to 500 input and 500 output words distributed across 63 drops per network. The module also includes a lithium battery with 1.2 Ah capacity and 10-year life, drawing 7 µA typical and 210 µA maximum current.

Industry Applications

In manufacturing environments, the 140CPU11303C excels at controlling conveyor systems, packaging lines, and material handling equipment. Its dual-network architecture with 3 distributed and 2 remote networks allows seamless integration across multiple production zones. For process industries like water treatment or chemical processing, the module's robust I/O capacity and Modbus communication ensure reliable data exchange with sensors and actuators. The CE and cUL certifications confirm compliance with international safety standards, making it suitable for global installations.

Installation & Setup Guidance

Mount the 140CPU11303C in a standard Modicon Quantum rack using the provided slots. Ensure the bus current requirement of 790 mA is met by the power supply. Connect the Modbus Plus and RS232 ports to your network using appropriate cabling. The module does not include a key switch, so secure access through software or cabinet locks. For remote drops, configure up to 31 drops per remote network using the built-in communication processor capacity of 2 NOM, NOE, CR, or NMS modules. Always follow Schneider Electric's installation manual for wiring and grounding details.

Maintenance & Reliability

The 140CPU11303C includes a conformal coating (Humiseal 1A33) for protection against moisture and contaminants. Its lithium battery lasts up to 10 years, reducing maintenance frequency. Operate the module within 0 to 60°C ambient temperature and up to 5000 m altitude for optimal performance. The watchdog timer automatically resets the processor if a fault occurs, minimizing downtime. Periodic inspection of connections and battery status ensures long-term reliability. For storage, keep the module between -40 and 85°C with humidity below 95% without condensation.

Compatibility & Integration

This processor works within the Modicon Quantum automation platform and supports programming software like Concept and ProWORX 32. It communicates via one Modbus Plus port and one Modbus RS232 port, enabling integration with legacy and modern systems. The module handles up to 2 communication modules (NOM, NOE, CR, or NMS) for extended networking. It is compatible with standard Quantum backplanes and I/O modules, ensuring easy upgrades or expansions. The 140CPU11303C also meets CSA C22.2 No 142 and UL 508 standards for electrical safety.

Selection Guide & Purchasing Advice

Before ordering the 140CPU11303C, verify your system's power supply capacity to support the 790 mA bus current draw. Confirm that your network topology matches the module's 2 remote and 3 distributed network capability. The module weighs 0.3 kg and ships in a package measuring 31.0 cm x 16.5 cm x 5.0 cm. BluePLC Industrial stocks this processor module and can assist with availability and lifecycle status. Contact our team to ensure the 140CPU11303C fits your application requirements and to discuss any needed accessories.