



Introduction & Technical Overview
The ABB Bailey NMRT01 (6637313A1) Circuit Board is a legacy electronic control module used within ABB Bailey INFI 90 / Net 90 distributed control system architectures. It functions as a specialized processing and interface board within the control system rack, supporting signal handling, internal communication tasks, and module-level coordination inside industrial automation cabinets.
Designed for continuous operation in mission-critical environments, the NMRT01 is built to ensure stable electronic performance under long-term industrial stress conditions such as temperature variation, electrical noise, and sustained load cycles. It plays a supporting role within the broader Bailey DCS ecosystem, contributing to system-level reliability and deterministic control behavior.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | ABB Bailey |
| Model | NMRT01 (6637313A1) |
| Product Type | Circuit Board Module |
| System Compatibility | ABB Bailey INFI 90 / Net 90 DCS |
| Function | Control signal processing / system interface |
| Installation | Control rack / backplane slot |
| Operating Environment | Industrial / Power generation / Process plants |
| Communication Role | Internal system backplane communication |
| Dimensions (H × W × D) | 45 × 100 × 115 mm |
| Weight | 0.88 kg (1.94 lb) |
| Construction | Industrial-grade electronic board |
| Maintenance | Module-level replacement / periodic inspection |
Applications
The NMRT01 circuit board is primarily used in ABB Bailey control racks deployed across power generation plants, petrochemical facilities, refineries, and large industrial process environments.
It is typically installed within modular chassis systems where it supports control signal processing, inter-module communication, or specialized subsystem functions depending on system configuration. In turbine control systems and boiler automation setups, it may be part of broader control logic and monitoring architectures. It is also found in long-life legacy installations where ABB Bailey systems remain in operational service.
Advantages
The NMRT01 offers stable electronic performance designed for industrial-grade reliability. Its compact board-level architecture allows integration into high-density control racks while maintaining electrical stability under continuous operation.
It is engineered to work seamlessly within ABB Bailey backplane systems, ensuring reliable communication with other modules in the same chassis. Its design supports long lifecycle operation, which is critical in legacy systems where full platform replacement is not feasible.
The board’s rugged industrial construction improves resistance to electrical interference and contributes to overall system robustness in harsh operating environments.
Technical FAQs
1. What is the primary function of the NMRT01 board?
It serves as a circuit-level processing and interface module within ABB Bailey DCS systems.
2. Which systems is it used in?
It is used in ABB Bailey INFI 90 and Net 90 distributed control systems.
3. Is it a standalone controller?
No, it operates as part of a modular control rack system.
4. What type of environment is it designed for?
Industrial environments such as power plants, refineries, and process industries.
5. Does it handle direct field signals?
It typically works within system-level signal processing and communication layers.
6. Can it be replaced individually?
Yes, it can be replaced at board level depending on system maintenance procedures.
7. Is it still used in modern automation systems?
It is primarily used in legacy ABB Bailey installations.
8. Does it require configuration after installation?
Configuration depends on system integration and rack-level setup.
9. What is its main benefit in the system?
It contributes to stable internal communication and control processing reliability.
10. Is it designed for continuous operation?
Yes, it is built for 24/7 industrial duty cycles.