Rugged Quantum Processor for Demanding Industrial Environments

Deploy robust automation control with the Schneider Electric 140CPU21304C Quantum series CPU. This module is built for reliability, featuring a protective conformal coating for harsh conditions. With 768 KB of RAM and fast execution, it capably handles complex logic and data processing. The 140CPU21304C offers versatile connectivity with Modbus and Modbus Plus ports for comprehensive system integration.

Core Processing & Memory Specifications

• Brand & Model: Schneider Electric Modicon Quantum 140CPU21304C.
• Processing Memory: 768 KB of user RAM for data and logic.
• Program Memory: 16 KB of dedicated memory for control programs.
• Execution Speed: Fast ~0.3 µs per Boolean instruction.
• Data Retention: Battery-backed RAM maintains data during power loss.
• Math Capability: Supports advanced math instructions for calculations.

Communication & I/O Capabilities

• Serial Port: 1 x RS232 port for Modbus serial communication.
• Network Port: 1 x Modbus Plus port for high-speed peer-to-peer networking.
• I/O Support: Manages both local rack I/O and remote I/O networks.
• Diagnostic LEDs: RUN, ERR, I/O, and COMM status indicators for quick troubleshooting.

Environmental Robustness & Physical Details

• Protective Coating: Conformal coated for protection in harsh, corrosive, or dusty environments.
• Operating Temperature: Wide range from 0°C to 60°C.
• Mounting: Standard rack-mounted design for Quantum 140 XBP racks.
• System Monitoring: Integrated watchdog function enhances system reliability.

Installation & Configuration

• Install the CPU in slot 0 of the primary Modicon Quantum rack.
• Connect the battery to the onboard holder to preserve RAM data.
• Use the RS232 port with a serial cable for programming and Modbus slave devices.
• Connect the Modbus Plus port to your peer network using a specialized trunk cable.
• Configure local and remote I/O drops within the Unity Pro programming software.
• Monitor the front-panel LEDs for immediate status of CPU and communication health.

Packaging & Shipping

• Includes one Schneider Electric 140CPU21304C CPU module.
• Package contains mounting hardware, documentation, and a battery holder (battery may be separate).
• Shipped in secure packaging via FedEx, UPS, or DHL for fast delivery.
• Backed by a standard 12-month warranty.

Expert FAQs

• What makes this CPU suitable for a "harsh environment"?

The conformal coating seals the circuit board against moisture, dust, and corrosive chemical vapors commonly found in industrial settings like wastewater plants or mining facilities, significantly extending its service life.

• How does battery-backed RAM benefit my application?

It retains critical data like production counts, machine parameters, or recipe values during a power cycle or outage. This prevents data loss and allows the system to resume operation immediately when power returns.

• Can I communicate with both Modbus and Modbus Plus networks simultaneously?

Yes, you can. You might use the Modbus Plus port for high-speed communication with other Quantum PLCs and the RS232 Modbus port to talk to simple devices like HMIs or drives, maximizing connectivity options.

• What is the typical application scope for this CPU?

It's ideal for mid-complexity process control, material handling systems, and standalone machine control where environmental toughness, reliable networking, and moderate processing power are key requirements.

• How do I know if the battery needs replacement?

The CPU typically reports a low-battery warning through its diagnostic status in the software. It's good practice to proactively replace the battery annually or as recommended in the manual to avoid unexpected data loss.

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