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Product Introduction
The ABB Bailey NLIM02 Loop Interface Module is a critical component in the INFI 90 distributed control system (DCS), specifically designed to facilitate communication between loop processors and control modules in complex process automation environments. Developed by ABB Bailey, a brand known for its rugged and scalable industrial control systems, the NLIM02 acts as a bridge for field loop signals and central processing elements.
This module ensures accurate and reliable data transmission across the control loop network by offering electrical isolation, signal conditioning, and precise data formatting. It is a plug-in type interface card that fits into the standard INFI 90 system rack, playing a vital role in supporting analog and digital loop connections in real-time applications such as power generation, oil and gas processing, chemical manufacturing, and water treatment plants.
Product Specifications
| Parameter | Details |
|---|---|
| Model Number | NLIM02 |
| Product Type | Loop Interface Module |
| System Compatibility | INFI 90 Distributed Control System |
| Communication Interface | Loop communication link to Loop Processor |
| Power Supply Voltage | 5 VDC (from system backplane) |
| Signal Types Supported | Analog and digital I/O loops |
| Input/Output Channels | Configurable (system-defined) |
| Response Time | ≤ 50 ms |
| Operating Temperature Range | 0°C to +60°C |
| Storage Temperature Range | -40°C to +85°C |
| Humidity Range | 5%–95% non-condensing |
| Electrical Isolation | Yes |
| Mounting Type | Rack-mounted (INFI 90 rack) |
| Module Form Factor | Plug-in module with card edge connector |
| LED Indicators | Status and communication indicators |
| Dimensions | 280 x 30 x 180 mm |
| Weight | 0.295 kg |
Applications
The ABB NLIM02 is employed in a broad range of industrial applications where high-integrity loop interfacing and control system communication are essential. Typical usage includes:
-
Power Generation Plants
Interfacing turbine control loops with centralized monitoring systems. -
Oil & Gas Refineries
Reliable loop connectivity for real-time data acquisition and process control. -
Chemical Processing Units
Enabling efficient analog/digital signal handling in safety-critical environments. -
Water & Wastewater Treatment
Monitoring and regulating pressure, flow, and chemical dosing loops. -
Pulp & Paper Mills
Ensuring loop integrity for precise tension, speed, and temperature regulation. -
Pharmaceutical Manufacturing
Guaranteeing process repeatability through robust loop integration.
Product Advantages
-
High Reliability
Industrial-grade design ensures long-term stable operation in harsh environments. -
Fast Signal Response
Real-time data transmission with minimal latency supports critical loop control. -
Seamless INFI 90 Integration
Fully compatible with ABB Bailey’s distributed control architecture for plug-and-play setup. -
Robust Electrical Isolation
Reduces ground loop issues and enhances signal fidelity. -
Modular Design
Simplifies maintenance, replacement, and system expansion. -
LED Diagnostics
Built-in status indicators enable quick troubleshooting during runtime.
Frequently Asked Questions (FAQ)
-
What is the main function of the ABB NLIM02?
The NLIM02 provides an interface between field loops and the loop processor in ABB’s INFI 90 control system. -
Which control systems is this module compatible with?
It is specifically designed for the ABB Bailey INFI 90 series. -
Does the NLIM02 support analog or digital signals?
It supports both analog and digital signal loops. -
Can this module be hot-swapped?
It is not recommended to hot-swap modules without following ABB’s specified safety procedures. -
What kind of isolation does the NLIM02 provide?
It offers electrical isolation between field signals and the control system. -
Where is the module typically mounted?
It is rack-mounted in the INFI 90 standard backplane chassis. -
Does it have built-in diagnostics?
Yes, the module features onboard LEDs to indicate status and communication health. -
What are its environmental limits?
Operating range is 0°C to +60°C; storage range is -40°C to +85°C. -
Is it certified for industrial use?
Yes, the module meets ABB’s industrial standards for DCS components. -
What happens if the NLIM02 fails during operation?
System diagnostics will alert the operator via LED indicators and central alarms, and it can be replaced quickly due to its modular design.
Related Models in the Same Series
| Model Number | Product Description | Function |
|---|---|---|
| NLIM01 | Legacy Loop Interface Module | Earlier version of NLIM02 |
| IMASI23 | Analog Input Module | Accepts analog signals from field devices |
| IMASO23 | Analog Output Module | Sends analog signals to field actuators |
| IMCIS22 | Communication Interface Slave Module | Interfaces between INFI 90 and subsystems |
| INNIS21 | Network Interface Slave Module | Used in redundant communication networks |
| INPCI01 | Communication Processor | Coordinates data exchange in the system |
Popular Models from ABB (Same Brand)
| Model Number | Product Type | Key Feature | Application |
|---|---|---|---|
| IMDSO14 | Digital Output Module | Solid-state relays, fast switching | General automation |
| INNPM12 | Network Processing Module | Redundant network support | Distributed control |
| CI854AK01 | Communication Interface | PROFIBUS DP connectivity | Industrial networking |
| PM866K01 | AC 800M Controller | High-speed CPU for control tasks | Process control systems |
| AI810 | Analog Input Module (S800 I/O) | 8-channel analog input module | Modular I/O systems |
| DO820 | Digital Output Module (S800 I/O) | 16-channel digital output | Control of actuators, relays |
