MODICON AS-W920-008 Schneider Electric

( Brand: Modicon ), ( Manufacturer Part Number: AS-W920-008 )

Review MODICON Schneider Electric Asw920008 Used

The **Schneider Electric AS-W920-008** is a high-performance, industrial-grade **Modicon AS-W920** analog input module designed to integrate seamlessly into Schneider Electric s **EcoStruxure Machine Automation** platform. This compact yet robust module is engineered to provide precise and reliable analog signal acquisition, making it an essential component for automation systems requiring real-time monitoring and control of process variables such as temperature, pressure, flow, or voltage. With **eight isolated analog input channels**, each capable of accepting signals ranging from **0 20 mA, 4 20 mA, or 0 10 V**, the AS-W920-008 ensures flexibility in interfacing with a wide array of sensors and field devices. Its **24-bit resolution** delivers exceptional accuracy and linearity, minimizing measurement errors and enabling fine-tuned control in demanding industrial applications. The module features **Schneider Electric s Modbus RTU or Modbus TCP communication protocols**, allowing for seamless integration with PLCs, HMIs, and SCADA systems, while its **isolated inputs** enhance safety by protecting against voltage spikes and ground loops. Built to withstand harsh environmental conditions, the AS-W920-008 is housed in a **durable metal enclosure** with an **IP65 rating**, ensuring protection against dust, moisture, and mechanical stress. Whether deployed in manufacturing, energy, or process industries, this module excels in applications requiring high-speed data acquisition, real-time diagnostics, and efficient automation all while contributing to energy-efficient operations through Schneider Electric s commitment to sustainable industrial solutions.

### **Pros and Cons of buying a Modicon AS-W920-008 (Schneider Electric ASW920008)**

#### **Overview**

The **Modicon AS-W920-008** is a compact, modular **Programmable Logic Controller (PLC)** designed for industrial automation. It is part of Schneider Electric s **EcoStruxure** platform and is commonly used in applications requiring reliable, scalable control with Ethernet and serial communication capabilities. Below is a detailed breakdown of its advantages and disadvantages.

---

### **Pros**

1. **Compact and Space-Efficient Design**

- The AS-W920-008 is a **modular PLC**, meaning it can be expanded with additional modules (I/O, communication, or power supplies) without requiring a large footprint. This makes it ideal for installations where space is limited.

- The base unit itself is small, allowing for easy integration into existing control panels or distributed systems.

2. **High Reliability and Industrial-Grade Build**

- Schneider Electric is a well-established brand known for robust industrial automation products. The AS-W920 series is designed to operate in harsh environments, with features such as:

- Wide operating temperature range (typically -25 C to 60 C).

- Protection against electrical noise and surges.

- Long-term availability of firmware and support.

- The unit includes **watchdog timers** and **fail-safe mechanisms** to prevent unexpected downtime.

3. **Scalability and Modularity**

- **Digital and analog I/O modules** (discrete inputs/outputs, thermocouple inputs, etc.).

- **Communication modules** (Ethernet, Modbus, Profibus, etc.).

- **Specialized modules** (motion control, safety, or high-speed counting).

- This modularity allows users to **start small and scale** as their application requirements grow, reducing upfront costs.

4. **Strong Communication Capabilities**

- Built-in **Ethernet (TCP/IP)** support allows for easy integration with **SCADA systems, HMIs, or cloud-based monitoring** (e.g., EcoStruxure Machine Expert).

- Supports **Modbus RTU/TCP**, **EtherNet/IP**, and other industrial protocols, making it compatible with a wide range of third-party devices.

- Some variants include **wireless communication options**, though this may require additional modules.

5. **Energy Efficiency**

- Schneider Electric s EcoStruxure platform emphasizes **energy-efficient operation**, reducing power consumption compared to older PLC generations.

- The AS-W920 series includes **low-power modes** and efficient processing, which can lower operational costs.

6. **User-Friendly Programming and Software Support**

- Compatible with **Schneider s EcoStruxure Machine Expert** (a modern, intuitive IDE for PLC programming).

- Supports **structured text, ladder logic (LD), function block diagrams (FBD), and sequential function charts (SFC)**.

- **Cloud connectivity** options allow for remote diagnostics, firmware updates, and performance monitoring.

- Schneider provides **extensive documentation, tutorials, and technical support**, reducing development time.

7. **Compatibility with Schneider s Ecosystem**

- **Altivar variable frequency drives (VFDs)**

- **Modicon TM3 or Quantum PLCs** (for larger systems)

- **EcoStruxure Architecture Expert** (for system integration)

- This interoperability simplifies **system design and maintenance**.

8. **Cost-Effective for Mid-Sized Applications**

- While not as inexpensive as very basic PLCs (e.g., Siemens LOGO or Allen-Bradley Micro800), the AS-W920-008 offers **better performance per dollar** for applications requiring **Ethernet, modular expansion, and Schneider s software ecosystem**.

- The **008 variant** (likely referring to the **8-slot base unit**) provides a good balance between cost and functionality for many industrial applications.

9. **Long-Term Availability and Support**

- Schneider Electric has a strong **product lifecycle policy**, ensuring that the AS-W920 series will remain supported for **many years** (unlike some niche or discontinued brands).

- Firmware updates and security patches are regularly provided, which is critical for **cybersecurity in industrial control systems**.

10. **Good for Distributed and Remote Applications**

- The compact size and **Ethernet connectivity** make it suitable for **distributed control systems (DCS)** or **remote monitoring applications**.

- Can be used in **machine automation, process control, or building automation** where a single PLC needs to manage multiple I/O points.

---

### **Cons**

1. **Higher Upfront Cost Compared to Basic PLCs**

- The AS-W920-008 is **more expensive** than entry-level PLCs (e.g., Siemens S7-1200, Allen-Bradley CompactLogix, or even some Chinese brands).

- For **very simple applications** (e.g., a few dozen I/O points with no Ethernet needs), a **cheaper PLC** (e.g., Modicon M580 or a basic Siemens LOGO) may be sufficient.

2. **Modular Expansion Adds Complexity**

- Each I/O or communication module adds to the **total system price**.

- Requires **careful planning** to avoid over-provisioning or under-provisioning.

- Some modules may have **limited availability** depending on the region.

3. **Learning Curve for New Users**

- Schneider s **EcoStruxure software** (Machine Expert) has a **steeper learning curve** compared to more intuitive PLC programming environments (e.g., Allen-Bradley Studio 5000 or Siemens TIA Portal).

- Users familiar with **other brands (e.g., Siemens, Rockwell)** may need time to adapt to Schneider s IDE.

4. **Dependence on Schneider s Ecosystem**

- If a system is **heavily reliant on Schneider Electric products**, switching to a different brand (e.g., Siemens, Rockwell) in the future may require **significant rework**.

- Some **third-party tools or libraries** may not be as well-supported as they are for Siemens or Allen-Bradley.

5. **Firmware and Software Updates Can Be Disruptive**

- While updates are beneficial for security and performance, **major firmware updates** can sometimes introduce **bugs or compatibility issues**, requiring downtime for testing.

- Some users report **occasional glitches** in the EcoStruxure software, though these are generally resolved in later versions.

6. **Limited Analog Input/Output Capacity in Base Model**

- The **AS-W920-008 base unit alone** has **no built-in analog I/O** users must add **separate analog modules**, which increases cost.

- For applications requiring **many analog signals**, a PLC with **integrated analog channels** (e.g., Siemens S7-1200 or Allen-Bradley CompactLogix) may be more convenient.

7. **Potential for Overkill in Small Applications**

- If an application only requires **a few dozen I/O points with minimal communication needs**, a **smaller, simpler PLC** (e.g., Modicon M580, Siemens LOGO, or Allen-Bradley Micro800) may be **more cost-effective and sufficient**.

- The AS-W920 s **Ethernet and modularity** are unnecessary for very basic control tasks.

8. **Physical Size Still Requires Space**

- While compact, the **8-slot base unit is not as tiny as some micro-PLCs** (e.g., Allen-Bradley Micro800 or Siemens LOGO!).

- In **extremely space-constrained environments**, a **smaller PLC** or **distributed I/O system** might be preferable.

9. **Limited Global Availability of Some Modules**

- Depending on the **region or application**, certain **specialized modules** (e.g., high-speed counting, safety modules) may have **limited availability or long lead times**.

- Users in **non-European or non-North American markets** may face **supply chain challenges** compared to more globally distributed brands like Siemens or Rockwell.

10. **Cybersecurity Considerations**

- Like all **Ethernet-connected PLCs**, the AS-W920 is vulnerable to **cyber threats** if not properly secured.

- Schneider provides **security best practices**, but **misconfiguration or lack of updates** can pose risks.

- Some industrial security experts recommend **segmenting networks** or using **firewalls** to protect PLCs like this from unauthorized access.

---

### **Conclusion**

The **Modicon AS-W920-008** is a **strong choice for mid-sized industrial automation applications** where **scalability, Ethernet connectivity, and Schneider Electric s software ecosystem** are important. It excels in **modular, expandable systems** where users need **reliable, long-term support** and **seamless integration with other Schneider products**.

- **Very simple control tasks** (where a cheaper PLC would suffice).

- **Applications with minimal

Details:

All products are guaranteed to be working but may show signs of use if purchasing a used product. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. Call to use a shipping service other than the ones listed. SCHNEIDER ELECTRIC AS-W920-008 / ASW920008 USED DISCONTINUED BY MANUFACTURER, CABLE ASSEMBLY.

Sells new and surplus product develops channels to purchase such.

part #: asw920008 prices

• $154.27-$199.00

specifications sensoindustria:

• brand: Modicon
• mpn: As-w920-008

general sensoindustria:

• PLCs HMIs > PLC Peripheral Modules > PLC Input Output Modules
• condition: Used

seller sensoindustria:

• rating: 99.5%
• # reviews: 189503
• city: 1 Millennium Dr, Willingboro, NJ 08046

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shipping sensoindustria:

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• cost: $12.90

offer sensoindustria:

• availability: In Stock
• started: February 10, 2026
• options: Ship-to-home
• quantity: 1
• sold: 0

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