140CPU11302C

The Schneider Electric 140CPU11302C is a compact yet capable CPU processor module designed for the Modicon Quantum automation platform. Engineered to deliver dependable control performance, this processor is ideal for small to mid-sized industrial applications requiring stable execution and efficient communication.

Built around a proven architecture, the 140CPU11302C combines reliable processing power with integrated Modbus communication, making it a practical solution for legacy systems and cost-sensitive projects. Its simplicity, durability, and ease of integration make it a preferred choice for maintaining or upgrading existing Quantum installations.

Technical Specifications

Parameter	Specification
Product Type	PLC CPU Processor Module
Platform	Modicon Quantum
Processor	80186
Clock Speed	20 MHz
Memory Capacity	~109 kB Internal RAM
User Logic Memory	Up to 8K Instructions
Communication Ports	1 × Modbus Plus, 1 × Modbus RS-232
I/O Capacity	Up to 500 I/O (Distributed)
Remote I/O Drops	Up to 63
Watchdog Timer	250 ms
Execution Time	0.3 – 1.4 ms per 1K instructions
Programming Software	Concept / ProWORX 32
Operating Temperature	0 to 60°C
Storage Temperature	-40 to 85°C
Coating	Conformal Coated (Harsh Environment Protection)
Dimensions (H×W×D)	Approx. 45 × 110 × 250 mm
Weight	Approx. 0.45 kg

The module operates with a 20 MHz processor and supports distributed I/O systems with stable execution performance.

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Application Areas

The 140CPU11302C is commonly used in industrial environments where stable PLC control is required without excessive system complexity:

Packaging and material handling systems
Textile and light manufacturing machinery
Water treatment and utility control
Small-scale process automation
Legacy system upgrades and maintenance

Key Advantages

The 140CPU11302C offers a practical balance between performance and simplicity. Its integrated Modbus communication ports reduce the need for additional communication modules, lowering system cost and complexity.

Its deterministic execution ensures consistent control performance, while the conformal coating enhances resistance to dust, humidity, and harsh industrial conditions. Additionally, its compatibility with established programming tools like Concept makes it easy to deploy and maintain in existing systems.

Technical FAQs

What is the primary role of the 140CPU11302C?
It acts as the central processor for Modicon Quantum PLC systems.
What communication interfaces are available?
It includes Modbus Plus and Modbus RS-232 ports.
What is the processor speed?
The CPU operates at 20 MHz.
How much memory does it provide?
It offers approximately 109 kB of internal RAM.
What programming software is used?
It supports Concept and ProWORX 32.
Can it support distributed I/O systems?
Yes, it supports up to 500 distributed I/O points.
Is it suitable for harsh environments?
Yes, it features conformal coating for added protection.
What is the watchdog timer value?
The watchdog timer is 250 ms.
Is this module still widely used?
Yes, especially in legacy Quantum systems and maintenance projects.
What makes this CPU a good choice?
Its reliability, simplicity, and built-in communication make it ideal for cost-effective automation solutions.