ABB NBIO-21C 64009141 Basic I/O Unit

The ABB NBIO-21C (Part No. 64009141) is a basic Input/Output unit engineered for industrial automation and process control applications. As part of ABB’s NBIO series, this module provides both digital input and output functionalities, designed for seamless integration into distributed control systems (DCS) and programmable logic controller (PLC) architectures. It is commonly deployed in environments where reliable and compact I/O modules are necessary to support high-performance, real-time data acquisition and command execution.

This I/O unit features a rugged industrial design, ensuring durability and consistent operation under demanding conditions. It simplifies system expansion, supports real-time communication, and maintains ABB’s standard of quality, making it a trusted component in process automation environments.

Technical Specifications

Product Applications

The NBIO-21C is designed for use in a broad range of industries where automation and monitoring are essential. Key applications include:

• Process Automation Systems: Interfaces directly with controllers for reliable signal exchange in oil & gas, water treatment, and chemical processing.

• Manufacturing Automation: Enables real-time control of motors, relays, solenoids, and sensors on assembly lines and machining systems.

• Energy and Utility Facilities: Ideal for power distribution systems, renewable energy plants, and energy management applications.

• Infrastructure Monitoring: Used in building automation systems to control lighting, HVAC, and safety systems.

• OEM Machinery Integration: Embedded in OEM designs for custom industrial machinery with discrete control needs.

Product Advantages

• Compact and Efficient: Small footprint allows easy installation in control cabinets without sacrificing performance.

• Reliable Switching: Solid-state digital output design ensures long life and consistent operation.

• Versatile Integration: Compatible with various ABB automation platforms and easily scalable in larger systems.

• Fail-safe Protection: Equipped with short-circuit and overload protection on all outputs.

• Status Monitoring: Integrated LEDs provide clear indication of input/output status, aiding diagnostics and maintenance.

• Cost-effective: Delivers essential I/O capabilities without the complexity and cost of higher-end modules.

Frequently Asked Questions (FAQ)

1. What type of signals does the NBIO-21C support?

   It supports 8 digital input and 8 digital output channels operating at 24V DC.

2. Can this unit be used with ABB Freelance or 800xA systems?

   Yes, the NBIO-21C is compatible with ABB’s Freelance and 800xA DCS systems.

3. Does the NBIO-21C have overcurrent protection?

   Yes, it includes per-channel protection against overload and short-circuit conditions.

4. What is the maximum current per output channel?

   Each output channel can drive up to 0.5 Amps.

5. How is the unit mounted in control panels?

   It is designed for DIN rail mounting, which simplifies installation and maintenance.

6. Is optical isolation provided between channels?

   Yes, each channel features optical isolation for enhanced electrical protection.

7. Are the inputs and outputs configurable?

   The digital inputs are configurable for sink or source operation, offering integration flexibility.

8. Is there a specific environmental requirement for this unit?

   It operates in temperatures from -20°C to +60°C and requires a non-condensing humidity environment.

9. Does ABB still support this model?

   While some NBIO models are phased out, spare parts and integration support may still be available through ABB’s global service network.

10. Is the module suitable for harsh industrial environments?

    Yes, it is designed with robust construction to withstand high temperatures, vibrations, and electrical noise.