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  3. MODICON 100-389

MODICON 100-389 Schneider Electric

100-389 Modicon Schneider Electric / 100389 Used

( Brand: Modicon ), ( Manufacturer Part Number: 100-389 )

Review MODICON Schneider Electric 100389 Used

The **Schneider Electric Modicon 100-389 (Model 100389)** is a robust and versatile programmable logic controller (PLC) designed to meet the demands of industrial automation in applications ranging from discrete manufacturing to process control. Part of Schneider Electric s Modicon 100 series, this compact yet powerful PLC is engineered to deliver reliable performance in environments where precision, scalability, and ease of integration are critical. The **100-389** features a **384-point I/O capacity**, expandable through modular I/O modules, making it ideal for medium-sized control systems where flexibility and modularity are essential. Its **16-bit architecture** ensures high-speed processing and the ability to handle complex control logic, including advanced functions like PID regulation, motion control, and data acquisition, all while maintaining seamless compatibility with Schneider Electric s EcoStruxure architecture a unified platform for industrial automation.

At its core, the **Modicon 100-389** operates on **Structured Text (ST), Ladder Logic (LD), and Function Block Diagram (FBD)** programming languages, supported by **CodeSYS** or **Unity Pro** software, allowing engineers to develop and debug applications efficiently. The PLC s **real-time operating system** ensures deterministic performance, crucial for applications requiring synchronized control over machinery, conveyor systems, or automated assembly lines. With **built-in communication protocols** such as **Modbus RTU, Profibus DP, and Ethernet/IP**, the 100-389 integrates effortlessly into larger automation networks, enabling seamless data exchange with HMIs, SCADA systems, and other PLCs. Its **Ethernet port** further enhances connectivity, supporting modern industrial communication standards like **OPC UA** for enhanced cybersecurity and remote monitoring capabilities.

Physically, the **Modicon 100-389** is housed in a **compact, ruggedized enclosure** designed to withstand harsh industrial conditions, including temperature fluctuations, vibration, and electromagnetic interference. The unit s **hot-swappable design** allows for easy maintenance and upgrades without disrupting ongoing operations, a feature that minimizes downtime in production environments. Additionally, the PLC s **low power consumption** and **energy-efficient components** contribute to cost savings while maintaining operational reliability. Schneider Electric s reputation for **high-quality industrial automation** is reflected in the **100-389 s** durability, with a **mean time between failures (MTBF)** optimized for long-term, uninterrupted performance.

Beyond its technical specifications, the **Modicon 100-389** is part of Schneider Electric s broader **EcoStruxure** ecosystem, which offers integrated solutions for energy management, predictive maintenance, and digitalization. This alignment with modern industrial trends ensures that the PLC can evolve with emerging technologies, such as **IIoT (Industrial Internet of Things)** and **edge computing**, enabling manufacturers to transition toward smarter, more connected factories. Whether deployed in a traditional automation setup or as part of a digital transformation initiative, the **100-389** provides a balance of **performance, scalability, and future-readiness**, making it a dependable choice for engineers and plant managers seeking a reliable PLC solution.

The Modicon 100-389 (Schneider Electric, part number 100389) is a programmable logic controller (PLC) from the Modicon 100 series, introduced in the late 1980s and early 1990s. While it remains a functional and capable PLC for certain applications, its use today comes with distinct advantages and disadvantages.

### Pros:

1. **Reliability and Durability**: The Modicon 100 series, including the 100-389, is known for its robust and durable construction. These PLCs were designed for industrial environments and are built to withstand harsh conditions, including temperature fluctuations, electrical noise, and mechanical stress. Many units still operate reliably in legacy systems after decades of use.

2. **Proven Performance**: The 100-389 has a long track record of stable operation in various industrial applications. Its architecture is well-understood, and troubleshooting is relatively straightforward for engineers familiar with the platform. The PLC handles basic to moderately complex control tasks effectively, making it suitable for applications like motor control, sequencing, and simple process automation.

3. **Compatibility with Legacy Systems**: If you are maintaining or upgrading an existing system that relies on the Modicon 100 series, the 100-389 can be a cost-effective solution for integration. It can interface with older sensors, actuators, and communication protocols that may not be compatible with newer PLCs.

4. **Cost-Effectiveness**: Compared to modern PLCs, the 100-389 is significantly cheaper to purchase, especially if sourced from used markets or refurbished suppliers. Replacement parts and maintenance costs are also lower than those for newer, high-end PLCs. This makes it an attractive option for budget-conscious projects or small-scale applications.

5. **Simple Programming**: The programming environment for the Modicon 100 series is straightforward, using ladder logic (IEC 61131-3 compliant). This makes it accessible for technicians with basic PLC programming knowledge. The lack of complex features also reduces the learning curve for simple control tasks.

6. **Analog and Digital I/O Flexibility**: The 100-389 offers a range of I/O options, including digital inputs/outputs and analog inputs (for temperature, pressure, etc.), which can be expanded via additional modules. This flexibility allows it to be adapted to a variety of control scenarios.

7. **Long-Term Availability of Support**: While official support from Schneider Electric may be limited, the PLC s widespread use means that there is still a pool of engineers and technicians familiar with it. Additionally, third-party support and documentation are often available through online forums, technical communities, or specialized vendors.

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### Cons:

1. **Outdated Technology**: The 100-389 is based on technology from the 1990s, which means it lacks modern features such as high-speed processing, advanced communication protocols (e.g., Ethernet/IP, PROFINET), and integration with contemporary SCADA or HMI systems. This can limit its compatibility with newer industrial networks and devices.

2. **Limited Scalability**: The 100 series is not designed for large-scale or highly complex automation tasks. Its processing power and memory are limited compared to modern PLCs, which can handle more sophisticated algorithms, larger programs, and higher I/O densities. Expanding the system may require additional modules, which can become cumbersome.

3. **No Built-in Ethernet or Modern Communication**: The 100-389 primarily uses serial communication (e.g., RS-232, RS-485) for programming and data transfer. Ethernet connectivity is not natively supported, which can be a significant limitation in today s IP-based industrial networks. Adapters or third-party solutions may be required to integrate it with modern systems.

4. **Deprecated Software and Tools**: Schneider Electric has largely discontinued support for the Modicon 100 series, including its programming software (e.g., Modsoft or older versions of Unity Pro). This means that finding updated or compatible software for programming, debugging, or simulation can be challenging. Users may need to rely on outdated or third-party tools.

5. **Security Vulnerabilities**: Older PLCs like the 100-389 were not designed with cybersecurity in mind. They lack features such as encryption, secure authentication, or firmware updates to patch vulnerabilities. This makes them more susceptible to cyber threats, which is a growing concern in industrial automation.

6. **Limited Expansion Options**: While the 100-389 supports expansion modules, the range of available options is limited compared to modern PLCs. Finding compatible or replacement modules can be difficult, especially for specialized I/O or communication interfaces.

7. **Training and Expertise**: As the technology ages, fewer engineers are trained in its use. This can lead to higher operational costs if specialized expertise is required to maintain or troubleshoot the system. Knowledge transfer to newer generations of technicians may also be challenging.

8. **Compatibility with Modern Devices**: Many modern sensors, actuators, and field devices use protocols or communication standards (e.g., Modbus TCP, OPC UA, Foundation Fieldbus) that are not natively supported by the 100-389. Adapters or gateways may be needed, adding complexity and potential points of failure to the system.

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### Conclusion:

The Modicon 100-389 is a functional and reliable PLC for specific applications, particularly in legacy systems or low-complexity control tasks where cost and simplicity are prioritized. Its durability, ease of use, and availability make it a practical choice for maintaining older installations or for small-scale projects where modern PLCs are overkill. However, its outdated technology, lack of modern features, and limited scalability make it unsuitable for applications requiring high-speed processing, advanced communication, or integration with contemporary industrial networks.

For new projects or applications where long-term support, cybersecurity, and compatibility with modern devices are critical, investing in a modern PLC (e.g., Schneider Electric s Modicon M580, EcoStruxure, or other contemporary brands) is strongly recommended. The 100-389 should primarily be considered for short-term or transitional use, or in cases where no alternative exists due to system dependencies.

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### Recommendation: - **Buy the Modicon 100-389 if**:

- You are maintaining or upgrading a legacy system that exclusively uses the Modicon 100 series.

- Your application is simple, low-speed, and does not require modern communication or high I/O density.

- Cost is a primary concern, and you can justify the trade-offs in reliability and compatibility.

- You have access to trained personnel familiar with the PLC or are willing to invest in training.

- **Avoid the Modicon 100-389 if**:

- You are starting a new project and require modern features such as Ethernet, high-speed processing, or advanced diagnostics.

- Your application demands integration with contemporary SCADA, HMI, or cloud-based systems.

- Cybersecurity is a concern, and you need support for encrypted communication or firmware updates.

- You anticipate future expansion or the need for high I/O density, as the PLC s limitations may become a bottleneck.

For most new or evolving industrial applications, upgrading to a modern PLC is the better long-term investment, despite the higher initial cost. If you must use the 100-389, ensure you have a clear plan for integration, support, and eventual migration to avoid technical debt.

Details:

SCHNEIDER ELECTRIC 100-389 / 100389 USED DISCONTINUED BY MANUFACTURER, BOARD, 3220 4Z48K, RAM, QUAD. 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.

Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection.

part #: 100389 prices

  • $103.58-$154.27

specifications automationjack:

  • brand: Modicon
  • mpn: 100-389

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shipping automationjack:

  • transit: 30-35 Days
  • service: Standard
  • cost: $12.90
  • class: Standard
  • type: Fixed

offer automationjack:

  • quantity: 1
  • options: Ship-to-home
  • availability: In Stock
  • sold: 0
  • started: February 19, 2026

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  • # reviews: 190823
  • rating: 99.5%
  • city: 1 Millennium Dr, Willingboro, NJ 08046

general automationjack:

  • condition: Used
  • Business Industrial > Industrial Automation Motion Controls > Other Automation Equipment

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category: business & industrial > industrial automation motion controls > automation equipment, sku: 13575166259346632,
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