Providing Scalable Control Solutions Across Multiple Variants
The Schneider Electric 140CPU43412, 140CPU43412A, and 140CPU43412U form a family of Unity Processors. These variants offer scalable performance within the robust Modicon Quantum platform. Each model provides reliable logic execution for a wide range of industrial automation tasks. Consequently, engineers can select the precise variant that matches their application’s complexity and memory needs.
Technical Specifications and Model Differentiation
This processor series from Schneider delivers essential computational power for control systems. The standard 140CPU43412 model serves as the base unit for general automation. Meanwhile, the 140CPU43412A and 140CPU43412U variants may offer enhanced features or regional certifications. Furthermore, all models maintain compatibility with the extensive Quantum I/O and communication ecosystem.
Detailed Technical Parameters
| Parameter | Specification (Typical for Series) |
|---|---|
| Manufacturer | Schneider Electric |
| Model Numbers | 140CPU43412, 140CPU43412A, 140CPU43412U |
| Product Series | Modicon Quantum |
| Product Category | Unity Processor / Central Processing Unit (CPU) |
| Processor Architecture | Dedicated PLC processor for deterministic control |
| Standard Memory Capacity | Varies by variant (e.g., 512KB to 1MB+ typical for this range) |
| Program Execution Speed | Suitable for mid-range control applications |
| Supported Local I/O Racks | Up to 2 racks (typical for Quantum 4xx series) |
| Integrated Communication Ports | Serial port (Modbus, Uni-Telway) standard |
| Supported Network Protocols | Modbus Plus, Ethernet (via separate communication modules) |
| Discrete I/O Addressing | Up to several thousand points (mix of local & remote) |
| Analog I/O Capacity | Supports multiple analog modules |
| Power Supply Requirement | 5V DC from Quantum baseplate |
| Typical Current Consumption | 800 mA to 1200 mA at 5V DC (varies by model) |
| Operating Temperature Range | 0°C to 60°C |
| Storage Temperature Range | -40°C to 85°C |
| Module Weight | Approximately 0.7 kg (single-width module) |
| Module Dimensions | Standard Quantum single-width form factor |
| Status Indicators | LEDs for Power, Run, Fault, Battery, Communication |
| Real-Time Clock | Battery-backed (battery typically user-replaceable) |
| Backup Memory | Capacitor for short-term program retention during power loss |
Key Features and Application Flexibility
The 140CPU43412 series processors execute ladder logic, function blocks, and structured text programs reliably. They manage discrete control, PID loops, and data handling for machine and process automation. These CPUs also coordinate communication across remote I/O drops and network modules. Moreover, their modular design allows for straightforward system upgrades or expansions. Therefore, they are widely used in manufacturing, material handling, and infrastructure projects.
Understanding Model Suffixes and Selection
The base 140CPU43412 model provides core functionality for standard applications. The ‘A’ suffix (e.g., 140CPU43412A) often indicates a specific firmware version or feature set. Similarly, the ‘U’ suffix (e.g., 140CPU43412U) may designate a particular market version or certification. Always consult the official Schneider documentation for the exact differences before selecting a unit.
Installation and System Configuration
First, install the chosen CPU module into the left-most slot of a 140XBP Quantum baseplate. Next, connect any required communication cables to the integrated serial port or network modules. Then, use Schneider’s Unity Pro software to configure the hardware and develop the control program. Finally, ensure your rack power supply can deliver the necessary current for stable processor operation.
SEO Title: Schneider 140CPU43412 Series CPUs | Modicon Quantum Unity Processors (A, U Variants)
Meta Description: Schneider 140CPU43412, 140CPU43412A, 140CPU43412U are Quantum Unity Processors for industrial control. Features serial comms, 5V power, 0-60°C operation, ~0.7kg weight.
Details
| Weight | 0.91 kg |
|---|---|
| Dimensions | 110 × 55 × 90 mm |
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