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Product Introduction
The Schneider Electric 140NOL91120C is a robust and intelligent Programmable Logic Controller (PLC) module designed for seamless integration within the Modicon Quantum automation platform. Engineered for use in large-scale and distributed industrial control systems, this module serves as a logic execution unit, capable of running custom control algorithms independent of the main CPU.
With enhanced computational capabilities and a focus on modularity, the 140NOL91120C allows users to distribute complex control logic across multiple points in a system—improving response times, load balancing, and system flexibility. It is ideally suited for applications that demand fast local decision-making, redundancy, and scalable architecture.
Offering real-time control, internal memory, and support for IEC 61131-3 programming standards, the module bridges the gap between centralized control and distributed intelligence, providing reliability and efficiency across various industrial domains.
Product Specifications
| Parameter | Details |
|---|---|
| Product Name | Programmable Logic Controller Module |
| Model Number | 140NOL91120C |
| Manufacturer | Schneider Electric |
| Product Line | Modicon Quantum |
| Function | Logic processing / co-processing / distributed control |
| Programming Languages | Ladder Logic, Structured Text, Function Block Diagram |
| Communication Interface | Quantum backplane bus |
| Memory | Non-volatile internal memory |
| LED Indicators | Module status, Run, Error, I/O activity |
| Configuration Software | Unity Pro / EcoStruxure Control Expert |
| Power Consumption | Approx. 420 mA @ 5 VDC (from rack backplane) |
| Operating Voltage | Supplied via Quantum rack |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Relative Humidity | 5% to 95%, non-condensing |
| Shock Resistance | 30 g |
| Firmware Upgradeable | Yes |
| Mounting Type | Plug-in rack module |
| Dimensions (H x W x D) | 103.9 × 40.3 × 250 mm |
| Weight | 0.36 kg |
| Certifications | CE, UL, CSA, ATEX |
Product Applications
The 140NOL91120C is purpose-built for demanding automation environments where control must be distributed, deterministic, and highly responsive. Applications include:
-
Petrochemical Plants
Local control for refining units, compressors, and safety interlocks. -
Power Generation and Distribution
Substation automation, breaker control, and redundancy logic. -
Manufacturing Automation
Assembly line task execution, material handling, and localized control systems. -
Water Treatment and Utilities
Pump station logic, tank level monitoring, and remote I/O management. -
Metals and Mining
Conveyor control, load balancing, and distributed system safety logic. -
Transportation Infrastructure
Tunnel ventilation systems, railway automation, and public infrastructure controls.
Product Advantages
-
Distributed Control Intelligence
Enables autonomous decision-making in remote system segments, enhancing speed and reliability. -
Modular Integration with Quantum Systems
Easy plug-in installation on Quantum racks, sharing power and data through the backplane. -
Multiple IEC Language Support
Supports various programming styles to match different engineering practices. -
Low Latency Logic Execution
Ideal for real-time, mission-critical processes that can’t tolerate delay. -
Enhanced Maintainability
Built-in status LEDs and diagnostic feedback streamline troubleshooting. -
Scalable and Future-Ready
Firmware upgradeable for future applications or logic improvements. -
Energy Efficient and Compact
Low power draw and small footprint make it suitable for large systems with many modules.
Frequently Asked Questions (FAQ)
1. What is the core role of the 140NOL91120C module?
It acts as a logic controller that processes local control programs within a Modicon Quantum system, complementing or offloading tasks from the main CPU.
2. Can it operate as a standalone PLC?
No, it requires integration with a Quantum rack system and coordination with a Quantum CPU.
3. Which programming languages does the module support?
It supports Ladder Logic, Function Block Diagram, and Structured Text, compliant with IEC 61131-3 standards.
4. What software do I need to configure or program this module?
Use Schneider Electric’s Unity Pro or EcoStruxure Control Expert for configuration and logic development.
5. Is the module capable of real-time decision making?
Yes, it’s designed to execute control logic with deterministic timing, suitable for time-critical applications.
6. How is the 140NOL91120C powered?
It draws power from the Quantum backplane, consuming about 420 mA at 5 VDC.
7. What kind of diagnostics are available on the module?
It includes onboard LEDs for RUN, ERROR, and I/O activity, and detailed diagnostics via software tools.
8. Can I update the firmware on this module?
Yes, the module supports firmware upgrades via Schneider’s authorized tools.
9. How does this differ from a Quantum CPU?
Unlike the CPU, which handles overall system control, this module executes localized or specialized logic tasks.
10. Is it suitable for high-availability or redundant systems?
Yes, it can be used in redundancy schemes, handling fallback or local execution tasks in high-availability architectures.
Related Models from the Same Series
| Model Number | Description | Key Feature | Function |
|---|---|---|---|
| 140NOL91100 | Logic Module | Basic logic execution | Local logic processing |
| 140CPU65160 | Quantum CPU Module | Standard CPU with Ethernet | Main control unit |
| 140CPU67160 | High-End CPU Module | Redundancy and larger memory | High-performance PLC |
| 140CRP93200 | Remote I/O Head Module | RIO communication | Distributed I/O interface |
| 140CHS11000 | Quantum 10-slot Rack | Holds Quantum modules | Mounting base |
| 140CPS11420 | Power Supply Module | 115–230 VAC Input | Power source for rack |
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