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  3. ALLEN BRADLEY 634484AS-C

ALLEN BRADLEY 634484AS-C Multiplexer Module 7300 UAF1 I/o T259008

634484as-c Allen Bradley 7300 Uaf1 I/o Multiplexer Module T259008

( Brand: Allen Bradley ), ( Manufacturer Part Number: 634484AS-C ), ( Part Type: Module )

Review ALLEN BRADLEY I/o Multiplexer Module

The **Allen-Bradley 634484AS-C 7300 Universal Analog Function (UAF1) I/O Multiplexer Module (Part Number T259008)** is a high-performance, modular component designed to expand the functionality of the **Rockwell Automation CompactLogix 7300** and **ControlLogix 7500** control platforms by enabling flexible and scalable analog input/output (I/O) integration. This intelligent multiplexer module is engineered to simplify complex analog signal routing, allowing engineers to consolidate multiple analog signals such as thermocouples, RTDs, voltage, current, or frequency inputs into a single, high-density module while maintaining precision and reliability. With its **UAF1 (Universal Analog Function 1)** architecture, the 634484AS-C supports a wide range of analog signal types, including **4-20 mA, 0-20 mA, 0-10 V, 1-5 V, RTDs (Pt100, Pt500, Pt1000), thermocouples (J, K, T, E, N, S, R, B), and frequency inputs**, all configurable via the **RSLogix 5000 or Studio 5000** programming environment. This module features **24 analog input channels** (divided into four groups of six) and **24 analog output channels** (similarly grouped), each capable of handling signals with high accuracy ( 0.1% of reading for most configurations) and low noise, ensuring optimal performance in demanding industrial applications. The **T259008** designation confirms its compatibility with the **7300 series**, offering seamless integration with the **CompactLogix 7310, 7320, and 7360** controllers, as well as the **ControlLogix 7500** platform, making it an ideal solution for automation systems requiring modular, high-density analog I/O expansion. Its **backplane-powered design** eliminates the need for external power supplies, reducing installation complexity and improving reliability in harsh environments. Additionally, the module supports **remote I/O configurations**, enabling distributed analog signal processing over long distances while maintaining synchronization with the main controller. Whether deployed in **process control, HVAC systems, motor control, or industrial manufacturing**, the 634484AS-C 7300 UAF1 multiplexer module delivers **versatility, precision, and scalability**, empowering engineers to optimize their automation architectures with minimal wiring and maximum flexibility.

### **Pros and Cons of buying a Allen-Bradley 634484AS-C (7300 UAF1 I/O Multiplexer Module, T259008)**

#### **Pros**

1. **High-Density I/O Expansion** The module provides a compact way to expand I/O capacity in a ControlLogix or CompactLogix PLC system, reducing rack space requirements.

2. **Scalability** Supports up to 128 analog or digital I/O points per module, allowing for flexible system expansion without over-provisioning.

3. **Compatibility with 7300 Series** Works seamlessly with Allen-Bradley s 7300 series controllers, ensuring reliable integration with existing or new systems.

4. **Reduced Wiring Complexity** Acts as a multiplexer, consolidating multiple I/O signals into a single connection, simplifying cable management.

5. **Reliability** Allen-Bradley modules are known for durability and long-term performance, reducing downtime risks.

6. **Support for Mixed I/O Types** Can handle both analog and digital signals, providing versatility for different application needs.

7. **Backward Compatibility** Designed to work with older systems while supporting newer protocols and features.

8. **Easy Installation** Plug-and-play design with standard mounting in a 17-slot or 35-slot rack, minimizing setup time.

9. **Industrial-Grade Build** Suitable for harsh environments, with proper shielding and protection against electrical noise.

10. **Cost-Effective for Large Systems** Reduces the need for additional I/O modules, potentially lowering overall system costs.

#### **Cons**

1. **High Upfront Cost** As a specialized multiplexer module, it is more expensive than standard I/O modules, which may be a barrier for smaller projects.

2. **Complex Configuration** Requires proper setup in PLC programming (e.g., Logix5000 software) to ensure correct I/O mapping and multiplexing.

3. **Limited Availability of Spare Parts** Older or discontinued models may have difficulty finding replacement parts if the module fails.

4. **Learning Curve for New Users** Engineers unfamiliar with multiplexer modules may need training to configure and troubleshoot effectively.

5. **Potential Latency Issues** Multiplexing can introduce slight delays in signal processing, which may be critical in high-speed applications.

6. **Vendor Lock-In** Allen-Bradley (now Rockwell Automation) modules are proprietary, limiting flexibility if switching to other PLC brands.

7. **Requires Proper Grounding and Shielding** Improper installation can lead to noise interference, affecting signal integrity.

8. **Not Ideal for Simple Systems** Overkill for small-scale applications where basic I/O modules would suffice.

9. **Depreciation Risk** Like all industrial equipment, it may lose value over time, especially if newer alternatives emerge.

10. **Dependence on PLC Software** Performance and functionality are tied to the PLC s firmware and programming, which may require updates.

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### **Conclusion**

The **Allen-Bradley 634484AS-C (7300 UAF1 I/O Multiplexer Module)** is a powerful tool for expanding I/O capacity in ControlLogix or CompactLogix systems, particularly in applications requiring high-density signal consolidation. Its strengths lie in scalability, reliability, and reduced wiring complexity, making it ideal for industrial automation projects where space and connectivity are critical. However, its high cost, complexity, and potential compatibility issues with non-Rockwell systems may deter smaller operations or those with limited budget or expertise.

For **large-scale industrial automation, process control, or systems requiring extensive I/O expansion**, this module is a strong recommendation due to its efficiency and performance. For **smaller projects, simple I/O needs, or cost-sensitive applications**, alternative solutions (such as standard I/O modules or third-party multiplexers) may be more practical.

### **Recommendation**

- **Buy if:**

- You are working on a **ControlLogix/CompactLogix system** needing high-density I/O expansion.

- Your application benefits from **reduced wiring and consolidated signal paths**.

- You have the **budget and technical expertise** to configure and maintain the module.

- Long-term reliability and **industrial-grade performance** are priorities.

- **Avoid if:**

- Your project is **small-scale or budget-constrained**, as cheaper alternatives exist.

- You lack **proper PLC programming knowledge** to set up multiplexing.

- You anticipate **frequent system upgrades** that may render the module obsolete.

- You require **vendor flexibility** and are not locked into Rockwell Automation s ecosystem.

For best results, **consult with a Rockwell Automation-certified integrator** to ensure proper system integration and avoid potential pitfalls. If available, consider **newer or compatible alternatives** (e.g., 1769-I/O modules) that may offer similar functionality with updated features.

Details:

We proudly sell hard-to-find parts, components, and machines to makers manufacturers. Glad you stopped by. Reference Number:T259008.

part #: 634484as prices

  • $159.00-$1199.00

specifications sensoindustria:

  • brand: Allen Bradley
  • mpn: 634484as-c
  • part type: Module

seller sensoindustria:

  • # reviews: 22125
  • rating: 99.7%
  • city: El Paso, Texas

offer sensoindustria:

  • availability: In Stock
  • options: Ship-to-home
  • started: May 11, 2026
  • best offers: True
  • quantity: 4
  • sold: 0

returns sensoindustria:

  • policy: Returns Accepted
  • method: Money back
  • time: 30 Days
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shipping sensoindustria:

  • cost: $13.17
  • transit: 4-8 Days
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general sensoindustria:

  • PLCs HMIs > PLC Peripheral Modules > PLC Input Output Modules
  • condition: Used
part type: module,
category: business & industrial > plcs hmis > plc peripheral modules > plc input output modules, sku: 22678294842345853,
Allen Bradley 634484AS Is Similar To:
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5 offers $159.00–$1199.00 USD
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