Product Overview
Downtime on a Modicon Quantum control system gets expensive fast. The 140CPU42401C from Schneider Electric is a high-performance CPU module built to keep complex automation processes running without interruption. With 1 MB of RAM, built-in flash memory, and a full IEC 61131-3 instruction set, this module handles demanding control tasks while protecting your investment in existing Quantum infrastructure.
As a rack-mounted unit, it drops directly into your current chassis, avoiding the cost and disruption of a full platform migration. Conformal coating adds an extra layer of environmental protection, reducing the risk of premature failure in harsh plant conditions.
Technical Specifications
| Specification | Value |
|---|---|
| Manufacturer | Schneider Electric |
| Product Line | Modicon Quantum |
| RAM | 1 MB |
| CPU Type | High-Performance |
| Voltage Supply | 5 V DC |
| Modbus Port | 1 x RS232 |
| Modbus Plus Port | 1 x Modbus Plus |
| Execution Time (Boolean) | ~0.3 µs |
| Instruction Set | Full IEC 61131-3 |
| Operating Temperature | 0…60°C |
| Mounting Type | Rack-mounted |
| Coating Type | Conformal Coated (CC) |
What These Specs Mean for Your Bottom Line
The 1 MB RAM capacity supports larger programs and data logging without external memory add-ons, which cuts hardware costs and cabinet space. The ~0.3 µs Boolean execution time translates to faster scan cycles, improving throughput on high-speed production lines. Dual communication ports — one RS232 and one Modbus Plus — let you integrate with existing networks without buying extra communication modules, keeping retrofit costs down.
Where the 140CPU42401C Fits
This CPU module suits oil and gas, water treatment, and heavy manufacturing environments where Modicon Quantum is already installed. In a pipeline monitoring station, for example, the Modbus Plus port links remote I/O drops across the facility, while the RS232 port handles local programming or SCADA communication. The 0…60°C operating range covers most climate-controlled control rooms and many field enclosures.
For plants planning a phased upgrade, this module offers a cost-effective path: replace only the CPU while keeping existing I/O racks and wiring intact. That approach minimizes capital outlay and shortens installation windows.
Integration and Compatibility
The 140CPU42401C works with both local and remote I/O configurations, giving you flexibility in how you distribute control across your process. The Modbus Plus port supports peer-to-peer networking, while RS232 handles point-to-point connections. If you need to connect to a different fieldbus network, confirm gateway or converter requirements with your supplier before ordering.
Selection Checklist
Before purchasing, verify your rack type, power supply compatibility (5 V DC), and existing network architecture. Confirm that your programming software supports the IEC 61131-3 instruction set. If you are unsure about compatibility, contact Oil AutoTech for hands-on technical selection help — we supply ready-to-ship spares for oil, gas, and industrial automation applications.
Please verify current lifecycle status and availability with Oil AutoTech before ordering.
