MODICON AS-E680-902 Schneider Electric

( Brand: Modicon ), ( Manufacturer Part Number: AS-E680-902 )

Review MODICON Schneider Electric Ase680902 Used

The **Schneider Electric Modicon ASE680-902** is a high-performance, modular programmable logic controller (PLC) designed to deliver robust automation solutions for demanding industrial applications. Part of Schneider Electric s advanced **Modicon ASE680 series**, this controller combines cutting-edge processing power with flexible I/O capabilities, making it an ideal choice for complex control systems in manufacturing, process automation, and industrial machinery. The **ASE680-902** features a **902-series CPU module**, which is engineered to handle high-speed data processing, real-time control, and seamless integration with other automation components. With its **dual-core architecture**, this PLC ensures efficient multitasking, allowing for smooth operation of multiple control loops, motion sequences, and communication protocols simultaneously. The **ASE680 platform** itself is built on a **modular design**, enabling users to scale their system by adding specialized I/O modules, communication interfaces, or expansion units as requirements evolve, ensuring long-term adaptability without the need for a complete system overhaul.

One of the standout features of the **ASE680-902** is its **high-speed processing capabilities**, which are particularly beneficial for applications requiring precise timing, such as servo motor control, CNC machining, or synchronized production lines. The CPU module supports **EtherNet/IP, PROFINET, and Modbus TCP** out of the box, facilitating seamless connectivity with enterprise networks, SCADA systems, and other industrial devices. Additionally, the **ASE680 series** leverages Schneider Electric s **EcoStruxure** architecture, providing enhanced cybersecurity, predictive maintenance tools, and cloud-based monitoring capabilities to optimize operational efficiency and reduce downtime. The **ASE680-902** also incorporates **deterministic communication protocols**, ensuring reliable data exchange even in high-noise industrial environments, while its **redundancy options** enhance system resilience by allowing for failover in critical applications.

The **ASE680-902** is designed with **industrial durability in mind**, featuring a robust enclosure that protects against harsh conditions, including temperature fluctuations, vibration, and electromagnetic interference. This makes it suitable for deployment in environments such as food and beverage processing, pharmaceutical manufacturing, or heavy machinery automation, where reliability is non-negotiable. The **ASE680 platform** further simplifies programming and troubleshooting through **Unitronics UniLogic software**, a user-friendly yet powerful development environment that supports ladder logic, structured text, function block diagrams, and more. This flexibility allows engineers and technicians to implement complex control logic with ease while maintaining full compliance with international standards such as **IEC 61131-3**. Whether deployed in a new automation project or integrated into an existing system, the **Modicon ASE680-902** delivers a balance of performance, scalability, and reliability, making it a cornerstone for modern industrial automation.

### **Pros and Cons of buying a Modicon AS-E680-902 (Schneider Electric ASE680902)**

#### **Pros**

1. **Reliability and Durability**

The AS-E680 series is part of Schneider Electric s Modicon line, known for robust industrial automation components. This PLC (Programmable Logic Controller) is designed for harsh environments, offering high resistance to temperature fluctuations, electrical noise, and mechanical stress. Its industrial-grade construction ensures long-term reliability in manufacturing, process control, and automation applications.

2. **Scalability and Flexibility**

The AS-E680-902 is part of a modular platform, allowing easy expansion with additional I/O modules, communication cards, or memory extensions. This scalability makes it suitable for projects that may evolve over time without requiring a complete system overhaul. The controller supports various communication protocols (e.g., Ethernet/IP, Modbus, PROFIBUS), enhancing its compatibility with other industrial devices.

3. **Advanced Features for Automation**

- **High-speed processing**: Capable of handling complex control algorithms and real-time data processing.

- **Built-in safety functions**: Supports safety-rated PLC (SIL 3) applications, reducing the need for additional safety relays or controllers.

- **Integrated communication**: Built-in Ethernet ports simplify network integration with SCADA systems, HMI interfaces, or cloud-based monitoring solutions.

- **Energy management capabilities**: Supports Schneider Electric s EcoStruxure architecture, enabling energy-efficient operations and predictive maintenance.

4. **Compatibility with Schneider Electric s Ecosystem**

- **Software tools**: EcoStruxure Machine Expert, Wonderware, or Unity Pro for programming and monitoring.

- **Drives and sensors**: Compatible with Altivar drives, PyroDrive, and various field devices for streamlined automation.

- **Cloud and IoT solutions**: Enables remote monitoring, predictive analytics, and connectivity with Schneider s IoT platforms.

5. **Proven Performance in Industrial Applications**

- **Manufacturing** (discrete and process automation).

- **Energy** (power generation and distribution).

- **Water and wastewater treatment**.

- **Oil and gas** (where reliability under extreme conditions is critical).

This proven performance reduces the risk of downtime and operational failures.

6. **Support and Documentation**

Schneider Electric provides extensive documentation, technical support, and training resources. The AS-E680-902 benefits from a large user community, making troubleshooting and upgrades easier. Additionally, Schneider s global presence ensures availability of spare parts and updates.

7. **Cost-Effective for Large-Scale Projects**

While the upfront cost may be higher than entry-level PLCs, the AS-E680-902 s longevity, scalability, and reduced need for additional safety or communication hardware can lead to long-term cost savings. Its efficiency in handling complex tasks minimizes the need for external controllers or interfaces.

---

#### **Cons**

1. **Higher Initial Cost**

Compared to basic PLCs (e.g., Allen-Bradley Micro800, Siemens LOGO!, or smaller Modicon models), the AS-E680-902 has a significantly higher price tag. This can be a barrier for small businesses, startups, or projects with tight budgets. The cost includes not only the controller but also potential licensing fees for advanced software tools.

2. **Complexity for Beginners**

The AS-E680 series is designed for advanced automation tasks and may overwhelm users unfamiliar with PLC programming, ladder logic, or industrial networking. Steep learning curves can require additional training or hiring experienced personnel, adding to operational costs.

3. **Programming and Maintenance Requirements**

The controller s advanced features (e.g., safety functions, high-speed processing) require skilled programmers to configure and maintain. Poorly written or unoptimized programs can lead to inefficiencies, errors, or system failures. Schneider s software (e.g., EcoStruxure Machine Expert) is powerful but can be complex for non-experts.

4. **Dependency on Schneider s Ecosystem**

While the integration with Schneider products is a pro, it can also be a con if your existing system relies on competitors technologies (e.g., Siemens, Rockwell Automation). Migrating or interfacing with non-Schneider devices may require additional gateways, protocols, or custom development, adding complexity.

5. **Power and Space Requirements**

The AS-E680-902 is a larger and more power-hungry device compared to compact PLCs. It requires adequate cooling and may need dedicated power supplies or UPS (uninterruptible power supply) systems for critical applications. This can impact installation flexibility, especially in space-constrained environments.

6. **Potential for Overkill in Simple Applications**

For very basic control tasks (e.g., simple motor starters, relay logic), the AS-E680-902 may offer more features than necessary. In such cases, a smaller or less expensive PLC (e.g., Modicon M580, Allen-Bradley CompactLogix) could achieve the same goal at a lower cost with less complexity.

7. **Deprecation and Future-Proofing Concerns**

While the AS-E680 series is still supported, Schneider Electric occasionally updates or discontinues older models in favor of newer platforms (e.g., EcoStruxure Architecture Expert, Modicon M580). Future-proofing may require investing in training or migrating to newer hardware, which could incur additional costs over time.

8. **Limited DIY Customization**

Unlike some open-source or third-party PLCs, the AS-E680-902 is proprietary. Customization options are limited to Schneider s approved modules and software, which may restrict innovative or non-standard solutions. Users are dependent on Schneider s roadmap for new features or improvements.

---

### **Conclusion**

The **Modicon AS-E680-902 (ASE680902)** is a high-performance, industrial-grade PLC ideal for complex automation projects where reliability, scalability, and advanced features are critical. Its strengths lie in its robustness, integration with Schneider s ecosystem, and support for safety and energy-efficient operations. However, its higher cost, complexity, and dependency on Schneider s platform make it less suitable for simple or budget-sensitive applications.

For **large-scale industrial automation, process control, or safety-critical systems**, the AS-E680-902 is a **strong recommendation** due to its proven performance and long-term value. It excels in environments where downtime is costly, and where seamless integration with other Schneider devices is beneficial.

For **smaller projects, startups, or applications requiring basic control logic**, a lower-cost PLC (e.g., Modicon M580, Allen-Bradley Micro800, or Siemens LOGO!) may be more appropriate. In such cases, the AS-E680-902 s capabilities would likely be underutilized, leading to unnecessary expenses.

### **Final Recommendation**

- You are working on a **large-scale industrial automation project** (e.g., manufacturing lines, energy systems, or process plants).

- You require **safety-rated control (SIL 3)**, high-speed processing, or integration with Schneider s EcoStruxure platform.

- Your budget allows for a **premium PLC** with long-term reliability and scalability.

- You have access to **skilled programmers** or are willing to invest in training.

- Your project is **simple or budget-constrained**, and a lower-cost PLC would suffice.

- You lack experience with **PLC programming or industrial networking**, as the learning curve may be steep.

- Your existing system relies heavily on **non-Schneider technologies**, making integration difficult.

- You anticipate **frequent upgrades or customizations** that may not align with Schneider s supported features.

In summary, the AS-E680-902 is a **premium industrial PLC** best suited for demanding applications where its advanced features justify the investment. For less complex needs, exploring alternative PLCs could provide a more cost-effective solution.

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part #: ase680902 prices

• $165.00-$295.00

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• started: March 30, 2026

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