ALLEN BRADLEY 5730-CPU1 Plc Modules

( Brand: Allen Bradley ), ( Manufacturer Part Number: 5730-CPU1 ), ( Part Type: Module )

Review ALLEN BRADLEY 5730cpu1 Used

The **Allen-Bradley 5730-CPU1 (5730CPU1)** is a robust and versatile programmable logic controller (PLC) designed by Rockwell Automation to deliver high-performance control in industrial automation applications. Part of the **CompactLogix 5700 series**, this compact yet powerful CPU module is engineered to provide seamless integration with other Allen-Bradley components, including the **CompactLogix 5700 chassis**, **I/O modules**, and **human-machine interface (HMI) devices**, making it an ideal choice for mid-sized control systems requiring reliability, scalability, and ease of programming. The **5730-CPU1** features a **1 GHz dual-core processor**, ensuring rapid execution of control logic, real-time data processing, and efficient handling of complex automation tasks. With **1 MB of user memory** (expandable via optional memory modules), this CPU provides ample storage for ladder logic, structured text, function block diagrams, and other programming languages supported by **RSLogix 5000** or **Studio 5000**, Rockwell s industry-leading development software. Its **10/100 Mbps Ethernet port** enables high-speed communication with other PLCs, HMIs, SCADA systems, and enterprise networks, facilitating seamless data exchange and remote monitoring capabilities. The **5730-CPU1** also supports **EtherNet/IP**, a proprietary industrial communication protocol that ensures deterministic data transfer, critical for time-sensitive applications such as motion control, process automation, and discrete manufacturing. Additionally, it includes **two serial ports (RS-232 and RS-485)** for legacy device integration, along with **USB connectivity** for easy firmware updates, configuration transfers, and device diagnostics. Built to withstand harsh industrial environments, the **5730-CPU1** features a **wide operating temperature range (-20 C to 60 C)**, resistance to vibration and shock, and compliance with **IEC 61131-2** and **UL/CSA standards**, ensuring long-term reliability in demanding applications. Whether deployed in food and beverage processing, material handling, packaging systems, or energy management, this PLC offers a balance of performance, flexibility, and ease of maintenance, making it a cornerstone for modern automation solutions.

### **Pros and Cons of buying a Allen-Bradley 5730-CPU1 (CompactLogix 5370 CPU1)**

#### **Pros**

1. **Compatibility and Integration**

- The **5730-CPU1** is part of Rockwell Automation s **CompactLogix 5370 series**, which is fully compatible with **RSLogix 5000, Studio 5000, and FactoryTalk View** software. This ensures seamless integration with existing Allen-Bradley PLC systems.

- It supports **EtherNet/IP, CIP (Common Industrial Protocol), and Modbus TCP**, making it versatile for industrial communication needs.

- Works well with **Allen-Bradley s broader ecosystem**, including HMI (Human-Machine Interface) systems, drives, and sensors.

2. **Performance and Processing Power**

- The **CPU1** model is a **16-bit processor** with **1 MB of user memory**, sufficient for small to medium-sized control applications.

- It supports **real-time control, motion control, and high-speed I/O** (via optional modules), making it suitable for automation tasks requiring precise timing.

- **Dedicated Ethernet port** allows direct communication with SCADA systems, cloud platforms, or other PLCs without additional hardware.

3. **Reliability and Industrial Build**

- Built to **NEMA 4X/IP65 standards**, meaning it is **dust-, water-, and oil-resistant**, making it durable for harsh industrial environments.

- **Wide operating temperature range (-20 C to 60 C)**, ensuring stable performance in extreme conditions.

- **Long-term availability** from Rockwell Automation, reducing the risk of obsolescence compared to some third-party brands.

4. **Cost-Effectiveness for Small to Medium Applications**

- More affordable than higher-end **ControlLogix or CompactLogix 5480** models while still offering robust functionality.

- **Low power consumption** (typical 12-24V DC operation) reduces energy costs.

- **Modular expansion** via **1769-I/O modules** allows scaling without replacing the entire system.

5. **Software and Programming Flexibility**

- Supports **Structured Text (ST), Ladder Logic (LD), Function Block Diagram (FBD), and Sequential Function Chart (SFC)** in **RSLogix 5000 or Studio 5000**.

- **Built-in safety features** (via optional **SafetyLogix** modules) can be integrated for basic safety applications.

- **Remote programming and diagnostics** via Ethernet/IP enable troubleshooting without physical access.

6. **Easy Installation and Maintenance**

- **Compact form factor** (1-slot CPU) simplifies rack mounting and wiring.

- **Self-diagnostics** via **Status LED indicators** and **Event Logs** help quickly identify issues.

- **Hot-swappable** I/O modules (with proper configuration) reduce downtime during maintenance.

---

#### **Cons**

1. **Limited User Memory (1 MB)**

- **1 MB of user memory** may be restrictive for applications requiring **large data tables, extensive trend logging, or complex math operations**.

- Requires **external memory (e.g., 1784-MEM)** if additional storage is needed for recipes, histograms, or large databases.

- **No built-in file system** for storing large configuration backups or third-party applications.

2. **No Integrated Safety Functionality**

- Unlike some **SafetyLogix or CompactLogix 5480** models, the **CPU1 does not natively support safety-rated I/O or safety protocols (e.g., CIP Safety)**.

- Safety applications must be handled via **external safety relays or third-party safety PLCs**, adding complexity and cost.

3. **Dependence on Rockwell s Proprietary Software**

- **RSLogix 5000 is no longer actively developed** (replaced by **Studio 5000**), which may require **licensing costs** and **training** for newer engineers.

- **Studio 5000** is a **paid subscription model**, increasing long-term software expenses compared to open-source or third-party alternatives.

- **Limited third-party support** fewer programming tools or integrations exist compared to PLCs from Siemens, Mitsubishi, or Schneider Electric.

4. **Scalability Limitations**

- The **1-slot CPU** restricts expansion to **1769 I/O modules**, but **only up to 128 digital I/O and 64 analog I/O** (depending on module configuration).

- For **larger systems**, upgrading to a **CompactLogix 5480 or ControlLogix** may be necessary, requiring a full system redesign.

- **No built-in high-speed counter (HSC) or motion control** requires additional **1771 or 1756 modules** for advanced motion applications.

5. **Potential for Higher Long-Term Costs**

- While the **CPU1 itself is affordable**, **licensing Studio 5000, I/O modules, and optional communication adapters** can add up.

- **Depreciation risk** Rockwell Automation occasionally discontinues older models, though the **5370 series remains widely supported**.

- **Training costs** Engineers familiar with **Studio 5000** may be required, increasing labor expenses.

6. **Limited Analog and High-Speed I/O**

- **No built-in high-speed counters (HSC)** motion control requires **additional modules (e.g., 1771-HSC)**.

- **Analog I/O is limited** unless paired with **1769-AI/AO modules**, which can increase system complexity.

- **No built-in pulse-width modulation (PWM) or advanced analog filtering**, which may require external components.

7. **Firmware and Security Considerations**

- **No built-in cybersecurity hardening** EtherNet/IP communication requires **proper network segmentation and firewall rules** to prevent unauthorized access.

- **Firmware updates** are managed by Rockwell, and **offline updates may be required**, potentially causing downtime.

- **No built-in VPN or advanced encryption** security depends on **network infrastructure**, not the PLC itself.

---

### **Conclusion**

The **Allen-Bradley 5730-CPU1 (CompactLogix 5370 CPU1)** is a **solid choice for small to medium-sized automation applications** where **cost, reliability, and Rockwell Automation compatibility** are priorities. It excels in **industrial environments** due to its **durability, Ethernet/IP communication, and integration with Studio 5000**, making it ideal for:

- **Machine control** (packaging, material handling, conveyor systems)

- **Process automation** (where 1 MB memory is sufficient)

- **Applications requiring RSLogix/Studio 5000 programming**

- **Systems where existing Allen-Bradley infrastructure is in place**

However, it **lacks advanced features** such as **built-in safety, high-speed motion, or extensive analog capabilities**, which may necessitate **additional modules or third-party solutions**. The **dependency on Studio 5000 licensing** and **limited memory** could also become **bottlenecks for complex or data-intensive applications**.

### **Recommendation**

You need a **reliable, compact PLC** for **basic to moderately complex control tasks**.

Your system **already uses Allen-Bradley hardware/software**, ensuring seamless integration.

You operate in a **harsh industrial environment** where **NEMA 4X/IP65 and wide temperature range** are critical.

Your application **does not require advanced safety, high-speed motion, or extensive analog I/O**.

You are **willing to invest in Studio 5000 licensing** for programming and maintenance.

You need **more memory (2 MB)** or **advanced data logging**.

Your application requires **built-in safety (CIP Safety)** or **high-speed motion control**.

You prefer **open-source or third-party PLCs** (e.g., Siemens S7-1200, Mitsubishi FX3U, or Schneider Quantum).

You anticipate **future expansion** beyond **128 digital I/O**, as scaling may require a **full system upgrade**.

**Cost of Studio 5000 licensing** is a concern explore **RSLogix 5000 (legacy) or open-source alternatives**.

The **5730-CPU1 is a well-rounded, cost-effective PLC** for **many industrial applications**, but its **limitations in memory, safety, and advanced motion** mean it may not be the best long-term solution for **highly complex or safety-critical systems**. If your requirements align with its strengths, it remains a **strong, dependable choice** within Rockwell s ecosystem.

Details:

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part #: 5730cpu1 prices

• $189.00-$199.00

specifications sensoindustria:

• brand: Allen Bradley
• mpn: 5730-cpu1
• part type: Module

general sensoindustria:

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

seller sensoindustria:

• city: 1 Millennium Dr, Willingboro, NJ 08046
• # reviews: 197965
• rating: 99.6%

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offer sensoindustria:

• quantity: 1
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• started: April 5, 2026
• availability: In Stock
• options: Ship-to-home

shipping sensoindustria:

• type: Fixed
• service: Standard
• cost: $12.90
• transit: 28-33 Days
• class: Standard

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