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  3. ALLEN BRADLEY 1771-0A01

ALLEN BRADLEY 1771-0A01 Plc Modules

1771-0a01 Allen Bradley / 17710a01 Used

( Brand: Allen Bradley ), ( Manufacturer Part Number: 1771-0A01 ), ( Part Type: Module )

Review ALLEN BRADLEY 17710a01 Used

The **Allen-Bradley 1771-0A01** is a high-performance, modular input/output (I/O) module designed for integration into the **CompactLogix** and **ControlLogix** programmable logic controller (PLC) families, offering robust and scalable digital input functionality for industrial automation applications. This **1771-0A01** module is a **16-point, 24V DC input module**, engineered to provide reliable and high-speed digital input signals with minimal latency, making it ideal for applications requiring precise timing and rapid response. Each of the 16 isolated input channels is configured to accept standard **24V DC signals**, accommodating a wide range of sensors, pushbuttons, limit switches, and other binary input devices commonly found in manufacturing, process control, and automation environments. The module features **optically isolated inputs**, ensuring protection against electrical noise, voltage spikes, and ground loops, which enhances system reliability in harsh industrial settings. With a **scan rate of up to 100 s per point**, the 1771-0A01 delivers exceptional performance for applications demanding high-speed data acquisition, such as motion control, discrete manufacturing, or real-time monitoring systems. Its **compact, DIN-rail mountable design** allows for easy installation within a **1771 or 1756 chassis**, while its **backplane communication interface** ensures seamless integration with the host PLC, enabling efficient data transfer and minimal processing overhead. Additionally, the module supports **fault diagnostics** through built-in status LEDs, providing clear visual feedback for troubleshooting and maintenance. Whether deployed in a small control panel or a large-scale automation system, the **1771-0A01** serves as a dependable component for capturing and processing digital signals with precision, contributing to the overall efficiency and uptime of industrial automation processes.

### **Pros and Cons of buying a Allen-Bradley 1771-0A01 (17710A01) Module**

The **Allen-Bradley 1771-0A01** is a **1771 Series A analog input module** designed for use in **PLC (Programmable Logic Controller) systems**, specifically compatible with **Rockwell Automation controllers** like the **1756 series**. Below is a detailed analysis of its advantages and disadvantages.

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### **Pros**

1. **High Reliability and Durability**

- Manufactured by **Rockwell Automation**, a trusted name in industrial automation, ensuring robust performance in harsh environments.

- Designed for **long-term use** in factory automation, with minimal failure rates compared to generic or aftermarket alternatives.

2. **Compatibility with Rockwell Ecosystem**

- Fully integrated with **Allen-Bradley PLCs (1756, 1769, etc.)**, ensuring seamless communication and programming support.

- Works with **Studio 5000, RSLogix 5000, and other Rockwell software**, reducing compatibility issues.

- Supports **EtherNet/IP, DH-485, and other Rockwell protocols** for easy integration into larger control networks.

3. **Analog Input Flexibility**

- Provides **4 analog input channels** (0-10V, 0-20mA, or 4-20mA), making it suitable for **temperature sensors, pressure transmitters, and other analog signals**.

- **Isolated inputs** protect the module from voltage spikes and noise, improving signal integrity.

4. **Modular and Scalable**

- Part of the **1771 Series A**, which allows for easy expansion of I/O systems in a **backplane or remote rack** setup.

- Can be combined with other **1771 modules** (digital I/O, communication, etc.) for a customized control system.

5. **Industrial-Grade Construction**

- Built to withstand **temperature extremes (-40 C to 70 C)**, **vibration, and humidity**, making it ideal for **manufacturing, oil & gas, and process industries**.

- **NEMA 4X or IP65-rated enclosures** are available for harsh environments.

6. **Long-Term Availability**

- As a **legacy but widely supported module**, spare parts and technical support are still available through **Rockwell and authorized distributors**.

- Unlike newer modules, it may be easier to find in **used or refurbished markets** if needed.

7. **Cost-Effective for Legacy Systems**

- If maintaining an **older Rockwell PLC system**, replacing a failed module with the **1771-0A01** avoids the need for a full system upgrade.

- Often **cheaper than newer high-end analog modules** with similar specifications.

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### **Cons**

1. **Legacy Technology Limitations**

- **No built-in Ethernet/IP port** (requires a separate communication module like **1756-CE2ENR** for Ethernet connectivity).

- **Slower communication speeds** compared to modern **EtherNet/IP or PROFINET** modules.

- **Limited software support** in newer Rockwell platforms (e.g., **Studio 5000 may require additional drivers**).

2. **Higher Cost Compared to Generic Alternatives**

- **Branded Rockwell modules are more expensive** than **third-party or generic analog input modules** (e.g., from **Siemens, Phoenix Contact, or AutomationDirect**).

- If budget is a concern, **compatible but cheaper alternatives** (e.g., **1771-AIB1**) may exist, but they may lack long-term support.

3. **Physical Size and Installation Constraints**

- **Standard 1771 Series A slot size** (1.5" wide) may require **additional rack space** compared to newer, more compact modules.

- **Wiring complexity** each analog input requires **separate terminal connections**, which can be cumbersome in large systems.

4. **Potential Obsolescence Risks**

- While still supported, **Rockwell is phasing out older 1771 Series A modules** in favor of newer **1756 or 1769 series**.

- Future **software updates or firmware patches** may be limited, increasing long-term maintenance risks.

5. **Limited Advanced Features**

- **No built-in diagnostics** (e.g., self-test, fault logging) compared to newer modules.

- **No support for high-speed analog updates** (e.g., **1756-AIB1** has faster scan rates).

- **No integrated analog output channels**, requiring separate modules for bidirectional control.

6. **Dependence on Rockwell Support**

- If **Rockwell discontinues support**, troubleshooting may become difficult.

- **Third-party support** (e.g., from distributors like **Grainger, AutomationDirect**) may not be as comprehensive as direct Rockwell assistance.

---

### **Conclusion**

The **Allen-Bradley 1771-0A01** is a **reliable, well-proven analog input module** ideal for **maintaining legacy Rockwell PLC systems** where compatibility and durability are critical. It excels in **industrial environments** where **long-term stability** is required, and it integrates smoothly with **Rockwell s ecosystem**.

However, if you are **building a new system** or need **modern communication protocols (EtherNet/IP, PROFINET)**, newer modules like the **1756-AIB1** or **1769-AIB1** may be better choices. Additionally, if **cost is a major concern**, generic or third-party alternatives could be considered, though they may lack long-term support.

### **Recommendation**

- **Buy the 1771-0A01 if:**

- You are **maintaining an existing Rockwell 1756/1769 PLC system**.

- You need **reliable, isolated analog inputs** in a **harsh industrial environment**.

- You prioritize **long-term availability and Rockwell compatibility**.

- You are **not planning a system upgrade** in the near future.

- **Consider alternatives if:**

- You are **starting a new project** and want **modern communication (EtherNet/IP, PROFINET)**.

- You need **higher scan rates or advanced diagnostics**.

- You are on a **tight budget** and can use **generic or newer Rockwell modules** (e.g., **1756-AIB1**).

- You require **bidirectional analog control**, which would need additional modules.

For most **legacy system maintenance scenarios**, the **1771-0A01 remains a solid choice**. However, for **new installations**, evaluating newer Rockwell or third-party modules may provide better long-term flexibility.

Details:

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. Sells new and surplus product develops channels to purchase such. ALLEN BRADLEY 1771-0A01 / 17710A01 USED DISCONTINUED BY MANUFACTURER, AC OUTPUT MODULE, 24V.

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part #: 17710a01 prices

  • $157.46-$250.00

specifications sensoindustria:

  • brand: Allen Bradley
  • mpn: 1771-0a01
  • part type: Module

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seller sensoindustria:

  • rating: 99.6%
  • # reviews: 196869
  • city: 1 Millennium Dr, Willingboro, NJ 08046

offer sensoindustria:

  • options: Ship-to-home
  • availability: In Stock
  • sold: 0
  • quantity: 1
  • started: March 28, 2026

general sensoindustria:

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

shipping sensoindustria:

  • cost: $12.90
  • class: Standard
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  • transit: 23-35 Days
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part type: module,
category: business & industrial > plcs hmis > plc peripheral modules > plc input output modules, sku: 21753309103917632,
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  • Used. Offer #1 priced at $250.00 + $0.00 shipping estimate = $250.00* total. Shelf A14 Tote 296.FREE SHIPPING
  • Used. Offer #2 priced at $157.46 + $12.90 shipping estimate = $170.36* total. FACTORY WARRANTY MAY NOT APPLY ALLEN BRADLEY / 17710A01 (USED) DISCONTINUED BY MANUFACTURER, AC OUTPUT MODULE, 24V.+$12.90 shipping

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