ALLEN BRADLEY 2001-NX7-28EDR Plc Modules

( Brand: Allen Bradley ), ( Manufacturer Part Number: 2001-NX7-28EDR ), ( Part Type: Module )

Review ALLEN BRADLEY 2001 Nx728edr Used

The **Allen-Bradley 2001-NX7-28EDR (2001NX728EDR)** is a high-performance, compact industrial controller designed to deliver robust automation solutions for demanding applications in manufacturing, process control, and machine automation. Part of Rockwell Automation s **CompactLogix 2001 series**, this controller features a **28-point digital input/output (I/O) configuration**, combining 16 discrete inputs and 12 discrete outputs in a single, space-efficient chassis. Engineered for reliability and flexibility, the 2001-NX7-28EDR operates within a wide temperature range (-40 C to 70 C), making it suitable for harsh industrial environments where temperature fluctuations and mechanical stress are common. Its **NX7 series** designation highlights its enhanced networking capabilities, including built-in **EtherNet/IP connectivity**, which allows seamless integration with other PLCs, HMIs, and enterprise systems via standard industrial Ethernet protocols. This controller leverages the **CompactLogix architecture**, offering a powerful **16-bit processor** with up to **1.5 MB of user memory**, providing ample space for complex control logic, ladder logic programs, and data storage for applications requiring advanced sequencing, motion control, or real-time monitoring. The **28EDR variant** includes **24V DC power supply compatibility**, ensuring versatility in power source selection, while its **compact, DIN-rail-mountable design** optimizes space utilization in control panels. With support for **Rockwell s Studio 5000 software**, users can easily configure, program, and troubleshoot the controller using a user-friendly development environment, enabling rapid deployment and maintenance. Ideal for applications such as packaging machinery, conveyor systems, material handling, and automated assembly lines, the 2001-NX7-28EDR delivers a balance of performance, scalability, and ease of integration, making it a dependable choice for modern industrial automation needs.

### **Pros and Cons of buying a Allen-Bradley 2001-NX7-28EDR (2001NX728EDR) Controller**

The **Allen-Bradley 2001-NX7-28EDR** is a compact, modular PLC (Programmable Logic Controller) designed for industrial automation applications. Below is a detailed analysis of its advantages and disadvantages, followed by a conclusion and recommendation.

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### **Pros**

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

- The **NX7 series** is part of Rockwell Automation s **NXT (Next Generation eXtreme) platform**, which is designed to be smaller and more modular than traditional PLCs. This makes it ideal for applications with limited panel space or where multiple controllers need to be integrated into a single enclosure.

2. **Modular and Scalable Architecture**

- The **2001-NX7** supports **modular I/O expansion**, allowing users to add input/output modules as needed. This scalability reduces the need for multiple PLCs, simplifying wiring and maintenance.

- Compatible with **Allen-Bradley s NX I/O modules**, which include analog, digital, and specialized modules (e.g., temperature, motion, communication).

3. **High-Speed Processing and Real-Time Capabilities**

- The **NX7 series** is built on a **real-time operating system (RTOS)**, providing deterministic performance critical for applications requiring precise timing (e.g., motion control, synchronization with other devices).

- Supports **high-speed Ethernet (10/100 Mbps)** and **CIP (Common Industrial Protocol)** for fast communication with other PLCs, HMI, and drives.

4. **Integration with Rockwell s Ecosystem**

- Fully compatible with **Studio 5000**, Rockwell s engineering software, which includes **RSLogix 5000** for programming and **FactoryTalk View** for HMI development.

- Works seamlessly with **Allen-Bradley s other products**, such as **CompactLogix, ControlLogix, and PowerFlex drives**, enabling unified automation solutions.

5. **Enhanced Security Features**

- Supports **IPsec, TLS, and CIP Security**, helping protect against cyber threats in industrial networks.

- **User authentication and role-based access control** can be configured to restrict unauthorized access to the PLC.

6. **Energy Efficiency and Reliability**

- Designed with **low power consumption** compared to some legacy PLCs, reducing operational costs.

- Built with **industrial-grade components**, ensuring durability in harsh environments (temperature, vibration, electrical noise).

7. **Future-Proofing with Cloud and IoT Capabilities**

- Supports **FactoryTalk AssetMonitor** for remote monitoring and predictive maintenance.

- Can integrate with **Rockwell s IoT platforms** (e.g., **FactoryTalk Analytics**) for data-driven decision-making.

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

- While not as low-cost as some micro-PLCs (e.g., Siemens SIMATIC S7-1200), it offers a **better balance of performance and price** for applications requiring more processing power than a CompactLogix but less than a full ControlLogix.

9. **Easy Programming and Debugging**

- **Studio 5000** provides a **graphical ladder logic editor**, structured text, and function block programming, making it accessible for both traditional PLC programmers and those transitioning from other automation platforms.

- **Built-in diagnostics** (e.g., error logging, watch windows) simplify troubleshooting.

10. **Backward and Forward Compatibility**

- While primarily a **next-gen PLC**, it is designed to work within Rockwell s **CIP network**, ensuring compatibility with existing Allen-Bradley devices.

- Future firmware updates may extend its capabilities further.

---

### **Cons**

1. **Higher Upfront Cost Compared to Legacy or Competitor PLCs**

- The **NX7 series** is **more expensive** than some older Allen-Bradley models (e.g., **1769-L30ER**) or competitors like **Siemens S7-1200** or **Siemens S7-1500**.

- The **modular I/O** adds to the cost if additional modules are required.

2. **Limited Analog and High-Speed I/O Compared to ControlLogix**

- While capable, the **NX7 does not match the high-speed analog or digital I/O capabilities** of a **ControlLogix** (e.g., 16K tags, high-speed counters).

- Best suited for **mid-range applications** rather than large-scale, high-performance systems.

3. **Learning Curve for New Users**

- Rockwell s **Studio 5000** and **NX platform** require familiarity with **CIP networking, structured text, and modern PLC architectures**, which may be unfamiliar to engineers trained on older systems (e.g., **RSLogix 500**).

- **Training may be necessary** for teams transitioning from legacy PLCs.

4. **Dependence on Rockwell s Software Ecosystem**

- **Studio 5000 is proprietary**, meaning users are locked into Rockwell s programming environment unless they use third-party tools (e.g., **CodeSys, Ignition**).

- **Licensing costs** for full Studio 5000 functionality can add up, especially for large projects.

5. **Limited Global Availability and Support**

- While widely available in North America and Europe, **support and spare parts may be less accessible** in some regions compared to more established PLC brands.

- **Firmware updates** may not be as frequent as those from competitors like **Siemens or Mitsubishi**.

6. **Power Supply and Cooling Requirements**

- The **NX7 requires a separate power supply** (e.g., **2001-NX7-PS**), which adds to the system cost and complexity.

- **Passive cooling** is standard, but in **high-heat environments**, additional cooling may be needed.

7. **Not Ideal for Extremely High-Speed Motion Control**

- While capable of **motion control**, it is **not as optimized for high-precision servo applications** as **Allen-Bradley s CompactLogix with integrated motion modules** or **Siemens S7-1500T**.

- For **complex motion sequences**, additional **DriveLogix or PowerFlex drives** may be required.

8. **Firmware Stability Concerns (Historical Issues)**

- Some early **NX series PLCs** had **firmware bugs or instability issues**, though Rockwell has improved reliability with updates.

- **Always check for the latest firmware** before purchasing to avoid compatibility or performance issues.

9. **Limited Offline Programming Capabilities**

- While **Studio 5000 supports offline programming**, some advanced features (e.g., **real-time simulation**) may require **additional licenses or hardware**.

- **Testing changes offline** can be more limited compared to some competitors.

10. **Potential for Higher Long-Term Maintenance Costs**

- Since the **NX7 is a newer platform**, **long-term maintenance and spare parts availability** may not be as established as those for **legacy PLCs** (e.g., **PLC-5, SLC 500**).

- **Training existing staff** on the NX platform may require additional investment.

---

### **Conclusion**

The **Allen-Bradley 2001-NX7-28EDR** is a **strong choice for mid-sized industrial automation applications** where **modularity, real-time performance, and integration with Rockwell s ecosystem** are priorities. It excels in **space-constrained environments, applications requiring CIP networking, and those needing a balance between CompactLogix and ControlLogix capabilities**.

- **Budget-sensitive projects** (higher upfront cost than some competitors).

- **Large-scale, high-performance motion control systems** (where ControlLogix or specialized drives may be better).

- **Teams unfamiliar with Rockwell s modern PLC architecture** (requires training).

- **Applications needing maximum analog/digital I/O** (where a ControlLogix or Siemens S7-1500 might be preferable).

If your application **requires deterministic performance, modular expansion, and seamless integration with Rockwell s software and hardware**, the **2001-NX7-28EDR is a reliable and future-proof choice**. However, if **cost, simplicity, or legacy compatibility** are critical, alternatives like **CompactLogix, Siemens S7-1200, or Mitsubishi FX series** may be more suitable.

---

### **Final Recommendation**

You need a **compact, modular PLC** for a **mid-sized automation system**.

Your application requires **real-time performance, CIP networking, or integration with Allen-Bradley drives/HMI**.

You are **already using Rockwell Automation s ecosystem** (Studio 5000, FactoryTalk, etc.).

You anticipate **future scalability** with additional I/O modules.

You are on a **tight budget** and can use a **CompactLogix or Siemens S7-1200**.

Your application is **highly

Details:

Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. ALLEN BRADLEY 2001 -NX7-28EDR / 2001 NX728EDR USED DISCONTINUED BY MANUFACTURER, PLC MODULE, INPUT: 10 MA/CH 24 VDC 15P SINK/SOURCE, OUTPUT: RELAY 2 AMP/CH 250 VAC 30 12P. Call to use a shipping service other than the ones listed. All products are guaranteed to be working but may show signs of use if purchasing a used product.

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part #: 2001nx728edr prices

• $83.70-$122.26

specifications sensoindustria:

• brand: Allen Bradley
• mpn: 2001-nx7-28edr
• part type: Module

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• condition: Used

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• started: March 26, 2026
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• # reviews: 196343
• rating: 99.6%

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