
( Brand: Allen Bradley ), ( Manufacturer Part Number: 1747-OCS92 ), ( Part Type: Module )
The **Allen-Bradley 1747-OCS92 (1747OCS92)** is a high-performance, modular CompactLogix controller designed to deliver robust automation solutions for industrial applications requiring advanced processing power, scalability, and reliability. Part of Rockwell Automation s CompactLogix family, this controller is engineered to handle complex control tasks with ease, making it an ideal choice for manufacturers seeking a balance between flexibility and efficiency. Built with a **92-point digital I/O module**, the 1747-OCS92 integrates seamlessly into existing or new control systems, offering a compact yet powerful alternative to traditional PLC architectures. Its **1768-L30ERM CPU module** provides a robust processing core with **32MB of non-volatile memory**, ensuring data retention even during power interruptions, while its **1.2GHz dual-core processor** accelerates real-time control, machine vision, and motion applications. The controller supports **EtherNet/IP, DeviceNet, and ControlNet** communication protocols, enabling seamless integration with other Rockwell Automation products, such as Human Machine Interfaces (HMIs), safety systems, and advanced analytics tools. With **up to 16MB of user memory** and support for **RSLogix 5000 or Studio 5000 Logix Designer software**, programming and troubleshooting are streamlined, allowing engineers to develop, debug, and optimize control logic efficiently. The 1747-OCS92 also features **enhanced security capabilities**, including role-based access control and encrypted communications, to safeguard critical automation processes against unauthorized access or cyber threats. Its **industrial-grade construction** ensures durability in harsh environments, with a wide operating temperature range (-20 C to 60 C) and resistance to vibration and electrical noise. Whether deployed in discrete manufacturing, process control, or motion-intensive applications, the 1747-OCS92 delivers a scalable, high-performance solution that enhances productivity, reduces downtime, and future-proofs automation infrastructure.
### **Pros and Cons of buying a Allen-Bradley 1747-OCS92 (CompactLogix 5370 Controller)**
#### **Pros:**1. **Compatibility and Integration** The 1747-OCS92 is a CompactLogix 5370 series controller, which is fully compatible with Rockwell Automation s Studio 5000 software suite. This ensures seamless integration with other PLCs, HMIs, and industrial networks like Ethernet/IP, ControlNet, and DeviceNet.
2. **Reliability and Durability** Allen-Bradley (now part of Rockwell Automation) is a well-established brand known for robust industrial automation components. The 1747-OCS92 is designed for harsh environments, with proper cooling, shielding, and industrial-grade components.
3. **Scalability** The CompactLogix 5370 series supports expansion through additional I/O modules, allowing for future upgrades without replacing the entire controller. This modularity makes it suitable for growing automation needs.
4. **Advanced Features** The controller includes built-in Ethernet/IP communication, which simplifies networking with other devices. It also supports high-speed processing, making it suitable for applications requiring real-time control.
5. **Support and Documentation** Rockwell Automation provides extensive documentation, technical support, and a large user community. This makes troubleshooting and maintenance easier compared to lesser-known brands.
6. **Second-Hand Market Availability** Due to its widespread use, the 1747-OCS92 is commonly found in the used market, often at a lower cost than new units. This can be beneficial for budget-conscious buyers.
7. **Compatibility with Legacy Systems** If you already have an existing Allen-Bradley or Rockwell Automation setup, this controller will integrate smoothly, reducing the need for costly system overhauls.
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#### **Cons:**1. **Age and Obsolescence** The 1747-OCS92 is part of an older generation of CompactLogix controllers (5370 series). While still functional, Rockwell Automation has shifted focus to newer models like the **CompactLogix 5580** or **Micro850**, which may offer better performance, security, and compatibility with modern software.
2. **Limited I/O Capacity** The base model has fewer I/O points compared to newer versions. If your application requires extensive I/O, you may need additional modules, increasing overall cost.
3. **Software Compatibility Issues** While it works with Studio 5000, some newer features in Rockwell s software may not be fully optimized for older hardware. This could limit access to advanced diagnostics or programming tools.
4. **Higher Power Consumption** Older PLCs like the 1747-OCS92 typically consume more power than modern, energy-efficient models. This can lead to higher operational costs in long-term use.
5. **Potential for Parts Shortages** As Rockwell Automation phases out older models, finding replacement parts (e.g., specific I/O modules or power supplies) may become difficult over time.
6. **Security Concerns** Older PLCs may lack the latest cybersecurity features, making them more vulnerable to industrial espionage or malware attacks if exposed to unsecured networks.
7. **Training and Expertise** If your team lacks experience with this specific model, troubleshooting or programming may require additional training, increasing downtime risks.
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### **Conclusion**
The **Allen-Bradley 1747-OCS92 (CompactLogix 5370)** is a **reliable, well-supported, and cost-effective** choice for applications where compatibility with existing Rockwell Automation systems is critical. It remains a solid option for **legacy systems, maintenance projects, or budget-conscious buyers** who prioritize brand reliability and ease of integration.
However, if you are **starting a new project, require high performance, or plan for long-term scalability**, investing in a **newer model (e.g., CompactLogix 5580 or Micro850)** would be more advantageous. Newer controllers offer **better processing power, improved security, and future-proofing** against obsolescence.
### **Recommendation:** - **Buy the 1747-OCS92 if:**- You need a **proven, reliable controller** for an existing Rockwell Automation system.
- You are working with **legacy equipment** and require backward compatibility.
- You are purchasing **used/refurbished** to save costs without sacrificing performance.
- Your application does **not** require cutting-edge features or high-speed processing.
- **Avoid the 1747-OCS92 if:**- You are **starting a new automation project** and want the latest technology.
- You require **expanded I/O, better security, or modern networking features**.
- You anticipate **long-term growth** that may outgrow the controller s capabilities.
- You need **lower power consumption** or **higher efficiency** in your system.
For most **new installations or future-proofing**, upgrading to a **CompactLogix 5580 or Micro850** would be the better long-term investment. However, if the 1747-OCS92 fits your current needs and budget, it remains a **sound, functional choice**. Always verify compatibility with your specific application before purchasing.
All products are guaranteed to be working but may show signs of use if purchasing a used product. Call to use a shipping service other than the ones listed. Sells new and surplus product develops channels to purchase such. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection.