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  3. ALLEN BRADLEY 1720-N44

ALLEN BRADLEY 1720-N44 Plc Modules

1720-n44 Allen Bradley / 1720n44 Used

( Brand: Allen Bradley ), ( Manufacturer Part Number: 1720-N44 ), ( Part Type: Module )

Review ALLEN BRADLEY 1720n44 Used

The **Allen-Bradley 1720-N44 (1720N44)** is a high-performance, compact programmable logic controller (PLC) designed by Rockwell Automation for industrial automation applications requiring robust, scalable, and reliable control solutions. Part of the **CompactLogix 1700 series**, this PLC is engineered to deliver superior performance, flexibility, and ease of integration into modern manufacturing, process control, and automation systems. The **1720N44** features a **44-point digital I/O configuration**, combining **32 digital inputs and 12 digital outputs**, making it ideal for applications where precise control over discrete signals is essential. Its **compact, panel-mount design** allows for efficient space utilization in control panels, while its **high-speed processing capabilities** ensure real-time responsiveness, even in demanding environments. Built with **Allen-Bradley s industry-leading reliability**, this PLC incorporates **industrial-grade components** that withstand harsh conditions, including temperature fluctuations, electrical noise, and mechanical stress, ensuring long-term operational stability. The **1720N44** operates seamlessly with **Rockwell Automation s Studio 5000 software**, providing a user-friendly development environment for programming, debugging, and monitoring control logic using **Ladder Logic, Structured Text, Function Block Diagram, or Sequential Function Chart (SFC)**. Its **integrated Ethernet communication** supports **CIP (Common Industrial Protocol)**, enabling seamless connectivity with other PLCs, HMIs, SCADA systems, and enterprise networks, facilitating data exchange and remote monitoring. Additionally, the **1720N44** supports **modular expansion** through compatible **176x series I/O modules**, allowing users to scale their control system as application requirements evolve. With its **deterministic timing**, **high-speed scan rates**, and **low-latency communication**, this PLC is well-suited for applications in **packaging, material handling, discrete manufacturing, and process automation**, where precise timing and reliable operation are critical. Whether deployed in a **factory floor, automation cell, or distributed control setup**, the **Allen-Bradley 1720-N44** delivers a balance of **performance, flexibility, and durability**, making it a trusted choice for engineers and automation professionals seeking a dependable control solution.

### **Pros and Cons of buying a Allen-Bradley 1720-N44 (1720N44) PLC**

#### **Overview**

The **Allen-Bradley 1720-N44** is a compact, network-capable Programmable Logic Controller (PLC) designed for industrial automation applications. It belongs to the **Rockwell Automation CompactLogix 1700 series**, offering a balance of performance, flexibility, and integration with other Rockwell systems.

---

### **Pros**

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

- The **1720-N44** is a **4-slot backplane module**, making it ideal for applications with limited panel space. It can be mounted in a **CompactLogix chassis** or used as a standalone unit with the **1768-L30ER** baseplate.

- The **N-series** (Network) variant includes built-in **EtherNet/IP** connectivity, eliminating the need for additional communication modules in many cases.

2. **EtherNet/IP Built-In**

- Unlike some older PLC models, the **1720-N44** has **native EtherNet/IP** support, allowing direct integration with **ControlLogix, CompactLogix, Studio 5000, and other Rockwell devices** without extra hardware.

- Enables **remote I/O, HMI communication, and SCADA connectivity** without additional modules.

3. **Scalability and Flexibility**

- Supports **up to 4 slots** for expansion modules (I/O, communication, or additional processing).

- Can be used in **standalone applications** or integrated into larger **ControlLogix networks**.

- Compatible with **Rockwell s Studio 5000** software for programming and monitoring.

4. **Cost-Effective for Mid-Range Applications**

- More affordable than **ControlLogix 5580 or 5562** but still offers **EtherNet/IP** and **RSLogix/Studio 5000** support.

- A good alternative to **Micro800** for applications requiring **higher I/O density or network capabilities**.

5. **Reliability and Rockwell Support**

- Built on **Rockwell Automation s robust platform**, known for **long-term availability** and **comprehensive technical support**.

- **Field-proven** in industrial environments with **wide temperature range (-25 C to 60 C)** and **vibration resistance**.

6. **Easy Integration with Other Systems**

- Works seamlessly with **Rockwell s HMI (PanelView Plus, FactoryTalk View)**, **SCADA (FactoryTalk View SE)**, and **motion control (Kinetix)**.

- Supports **OPC UA** and **Modbus** via third-party modules if needed.

7. **Good for Small to Medium Control Tasks**

- Suitable for **automation tasks requiring 44 digital I/O points** (with appropriate modules).

- Can handle **basic motion control, sequencing, and process automation** efficiently.

---

### **Cons**

1. **Limited I/O Capacity Without Expansion**

- The **base model (1720-N44)** has **no built-in I/O** it requires **additional I/O modules** (e.g., **1769-I/O**) to be installed in the 4 slots.

- If only **4 slots are used for I/O**, the effective I/O count depends on the modules chosen (e.g., **1769-I/O modules** provide **8-32 digital/analog points per slot**).

2. **No Analog Inputs/Outputs by Default**

- Unlike some **Micro800 or SLC 500** models, the **1720-N44 does not include analog I/O** additional **1769-AI/AO modules** are required for analog signals.

3. **Requires Studio 5000 for Advanced Programming**

- While **RSLogix 5000** can be used, **Studio 5000** is the recommended environment for **1700 series PLCs**, which may have a **steeper learning curve** for users familiar with older Rockwell software.

- **Free trial versions** are available, but full licensing is required for production use.

4. **Power Supply Dependency**

- The **1720-N44** requires an **external power supply** (e.g., **1769-PB or 1769-PB1**), adding to the **total system cost**.

- Unlike some **Micro800 models**, it does not have **built-in power supply options** in all configurations.

5. **Slower Processing Than ControlLogix**

- While capable for **most small to medium applications**, it is **not as fast** as **ControlLogix 5580 or 5562** for **high-speed motion or complex math-intensive tasks**.

- **Scan times** will be longer compared to **higher-end PLCs** if running large programs.

6. **Deprecated Status (Discontinued but Still Supported)**

- The **1700 series is no longer new**, meaning **new features are rare**, and **long-term hardware upgrades may be limited**.

- Rockwell still supports it, but **future-proofing** may require migration to **CompactLogix 1800 or Micro850** in the long run.

7. **Physical Size Constraints**

- The **1720-N44 chassis is larger than Micro800 or SLC 5000**, which may be a **space concern** in very compact installations.

- Requires **proper ventilation** and **mounting considerations** (e.g., **1768-L30ER baseplate** for standalone use).

---

### **Conclusion**

The **Allen-Bradley 1720-N44** is a **solid choice for applications requiring EtherNet/IP connectivity, mid-range I/O flexibility, and Rockwell Automation s ecosystem integration**. It strikes a **good balance between cost, performance, and scalability**, making it suitable for:

- **Small to medium industrial automation** (e.g., packaging, material handling, basic process control).

- **Applications needing EtherNet/IP without extra modules** (unlike older PLCs).

- **Users already invested in Rockwell s Studio 5000 or ControlLogix networks**.

However, if **analog I/O, higher processing speed, or extreme compactness** are critical, alternatives like **Micro800 (for simple tasks), CompactLogix 1800 (for scalability), or SLC 5000 (for legacy systems)** may be better. The **1720-N44 is a reliable, well-supported option** but may not be the best fit for **high-speed motion, large analog applications, or future-proofing needs**.

---

### **Recommendation**

**Buy the 1720-N44 if:**

You need **EtherNet/IP connectivity** without additional modules.

Your application requires **44 digital I/O points** (with expansion modules).

You are already using **Rockwell s Studio 5000 or ControlLogix systems**.

Budget allows for **additional I/O and power supply costs**.

You prefer **Rockwell s long-term support** over newer but less proven alternatives.

**Consider alternatives if:**

You need **analog I/O** (requires extra modules).

Your application demands **high-speed motion or complex math** (ControlLogix may be better).

Space is extremely limited (Micro800 or SLC 5000 may fit better).

You want **long-term future-proofing** (CompactLogix 1800 or Micro850 could be better investments).

**Final Verdict:**

The **1720-N44 is a practical, cost-effective PLC** for **mid-range Rockwell Automation applications** where **EtherNet/IP and scalability** are priorities. For **simpler tasks**, a **Micro800** might suffice, while **higher-end ControlLogix** would be better for **complex or high-speed control**. If compatibility with **Studio 5000 and Rockwell s ecosystem** is a must, this PLC remains a **strong, reliable option**.

Details:

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part #: 1720n44 price

  • $94.48

specifications sensoindustria:

  • brand: Allen Bradley
  • mpn: 1720-n44
  • part type: Module

general sensoindustria:

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

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  • service: Standard
  • cost: $12.90
  • type: Fixed
  • class: Standard
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  • rating: 99.6%
  • # reviews: 195733
  • city: 1 Millennium Dr, Willingboro, NJ 08046

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offer sensoindustria:

  • sold: 0
  • quantity: 1
  • options: Ship-to-home
  • started: March 22, 2026
  • availability: In Stock

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part type: module,
category: business & industrial > plcs hmis > plc peripheral modules > plc input output modules, sku: 21607054108507632,
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