ALLEN BRADLEY 355905 Module Channel Fw 5069-OB08 I/o 24V 3.016

( Brand: Allen Bradley ), ( Manufacturer Part Number: 355905 ), ( Model: 5069-OB08 ), ( Part Type: 24v Module )

Review ALLEN BRADLEY Compact I/o Output Module 24v Channel Fw 3.016

The **Allen-Bradley 355905-5069-OB08** is a high-performance, modular **24V DC input/output (I/O) module** designed for integration into the **CompactLogix 5000** and **GuardLogix** control platforms, offering robust and scalable automation solutions for industrial applications. This **8-channel, discrete output module** operates at a nominal voltage of **24V DC**, delivering reliable and precise control over external devices such as relays, solenoids, motors, and indicators with a maximum current rating of **0.5A per channel** (non-continuous) and **0.2A per channel** (continuous). Engineered with **Allen-Bradley s proven reliability**, this module features **isolated outputs**, ensuring protection against voltage spikes, ground loops, and electrical noise, which is critical in harsh industrial environments where stability and longevity are paramount.

The **355905-5069-OB08** operates under **firmware version 3.016**, which enhances compatibility with the latest **RSLogix 5000**, **Studio 5000**, and **FactoryTalk View** software platforms, enabling seamless programming, monitoring, and diagnostics. Each of the **8 individually controlled channels** is equipped with **optically isolated outputs**, reducing electromagnetic interference (EMI) and improving system resilience. The module s **compact, DIN-rail mountable design** allows for easy installation in control panels, enclosures, or distributed I/O systems, while its **backplane connectivity** ensures seamless integration with the host controller via the **CompactLogix 5000 s high-speed backplane bus**, supporting data rates up to **10 Mbps**. This module is ideal for applications requiring precise timing, such as **machine automation, process control, material handling, and HVAC systems**, where consistent and dependable output control is essential.

Beyond its technical specifications, the **355905-5069-OB08** incorporates **Allen-Bradley s industry-leading diagnostics and troubleshooting capabilities**, allowing operators to quickly identify and resolve issues through **fault reporting, status monitoring, and built-in self-tests**. The module s **wide operating temperature range (-25 C to 60 C)** ensures reliable performance in both indoor and outdoor industrial settings, while its **high ingress protection (IP20)** rating provides basic protection against dust and accidental contact. Whether deployed in a **factory automation environment, renewable energy system, or critical infrastructure application**, this module delivers **uncompromising performance, scalability, and long-term reliability**, making it a cornerstone of modern industrial control architectures.

### **Pros and Cons of buying a Allen-Bradley 355905-5069-OB08 (24V DC I/O Module, Firmware 3.016)**

#### **Pros**

1. **Compatibility with Rockwell Automation Systems** This module is designed for use in **ControlLogix, CompactLogix, and other Rockwell PLC platforms**, ensuring seamless integration with existing systems. It supports **Ethernet/IP** communication, which is widely used in industrial automation.

2. **Reliable 24V DC Inputs** The module provides **8 discrete inputs (24V DC)**, which are commonly used for sensors, switches, and dry contacts. The 24V DC voltage is a standard in industrial applications due to its safety, noise immunity, and long-distance signaling capability.

3. **Firmware Version 3.016** This firmware version is **well-supported** and has been tested for stability in industrial environments. It likely includes **bug fixes and optimizations** from Rockwell s updates, reducing the risk of compatibility issues with newer ControlLogix firmware.

4. **Modular and Expandable** The **OB08 (Output Block 8)** designation suggests it is part of a **modular I/O system**, allowing for easy expansion of input/output capacity. This flexibility is useful for **scaling automation systems** without major redesigns.

5. **Industrial-Grade Build** Allen-Bradley modules are known for **durability, resistance to electrical noise, and long-term reliability**, making them suitable for harsh factory environments.

6. **Ethernet/IP Communication** The module supports **Ethernet/IP**, a high-performance industrial networking protocol that ensures **low-latency data transfer**, critical for real-time control applications.

7. **Backward and Forward Compatibility** While newer firmware versions may exist, **3.016 is likely compatible with most ControlLogix controllers** (556x, 558x, 5380, etc.), reducing the need for immediate firmware upgrades.

8. **Easy Replacement for Faulty Modules** If the original module fails, this **direct replacement** ensures minimal downtime, as it maintains the same **pinout, communication protocol, and electrical specifications**.

---

#### **Cons**

1. **Potential Obsolescence Risk** While **3.016 is a stable firmware version**, newer ControlLogix controllers (e.g., **5580, 5380 with newer firmware**) may require **higher firmware versions** for full functionality. This could lead to **limited support in future Rockwell updates**.

2. **Limited Availability of New Stock** Allen-Bradley modules, especially older or less common variants, may be **harder to find in stock** from authorized distributors. Prices can fluctuate based on demand and availability.

3. **No Built-in Diagnostics for Firmware 3.016** Some **newer firmware versions** include **enhanced diagnostic tools** (e.g., better error logging, predictive maintenance features). This module may lack those advancements.

4. **Cost Compared to Alternatives** While Allen-Bradley is a **reliable brand**, third-party or newer **Rockwell-compatible modules** (e.g., **Siemens, Beckhoff, or newer AB modules**) may offer **better performance, lower cost, or additional features** (e.g., higher input/output density, analog support).

5. **Firmware Limitations** If the **ControlLogix controller has a newer firmware version**, some **advanced features** (e.g., improved Ethernet/IP performance, security enhancements) may not be fully compatible with **3.016**.

6. **Potential for Counterfeit Modules** When purchasing from **unauthorized resellers**, there is a risk of **counterfeit or refurbished modules** that may not function as expected. Always buy from **certified Rockwell distributors** (e.g., Grainger, AutomationDirect, or authorized dealers).

7. **No Analog Inputs** This is a **discrete (digital) I/O module only**, meaning it **cannot read analog signals** (e.g., temperature, pressure). If analog inputs are needed, a separate module (e.g., **355905-5069-OB09 for analog**) would be required.

8. **Wiring and Installation Complexity** Like all industrial I/O modules, **incorrect wiring (e.g., reversed polarity, improper grounding) can cause damage or system failures**. Proper installation knowledge is required.

---

### **Conclusion**

The **Allen-Bradley 355905-5069-OB08 (24V DC, Firmware 3.016)** is a **reliable, well-tested module** ideal for **ControlLogix-based systems** where **discrete 24V DC inputs** are needed. It offers **proven compatibility, durability, and modular flexibility**, making it a **safe choice for maintenance or replacement** in existing setups.

However, **potential drawbacks** include **firmware limitations, possible obsolescence concerns, and higher cost compared to newer alternatives**. If the system is **not critical for future upgrades**, this module is a **solid, low-risk purchase**. If **long-term scalability or advanced features** are needed, evaluating **newer Allen-Bradley modules or third-party options** may be beneficial.

---

### **Recommendation**

- You need a **direct replacement** for a failing module in an **existing ControlLogix system**.

- Your **controller firmware is compatible** with **3.016** (check with Rockwell documentation).

- You **prioritize reliability and brand support** over the latest features.

- You are purchasing from a **trusted distributor** to avoid counterfeit risks.

- Your system requires **analog inputs** (opt for **355905-5069-OB09 or similar**).

- You need **higher I/O density or newer Ethernet/IP features** (look at **newer AB modules or third-party options**).

- Budget allows for **newer, more future-proof modules** (e.g., **5580-compatible I/O**).

- You are unsure about **firmware compatibility** contact **Rockwell support** before purchasing.

**Final Verdict:** This module is a **good choice for maintenance and replacement** in **ControlLogix systems** where **discrete 24V DC inputs** are required, provided firmware compatibility is confirmed. For **new installations or future-proofing**, a **newer AB module or third-party option** may be worth evaluating.

Details:

Condition Used. Items in Lot1. Part Number355905. Shipping Dimensions: length 7 in.

And the cost of return shipping. Country of Manufacture Malaysia. Ask our experts. Model 5069-OB08.

part #: 355905 prices

• $89.99-$120.00

specifications sensoindustria:

• brand: Allen Bradley
• mpn: 355905
• model: 5069-ob08
• part type: 24v Module

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general sensoindustria:

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

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• city: Millersburg, Indiana
• # reviews: 19319
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• cost: $21.26

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