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Product Description
The ABB Bailey NLMM02 6635814A1 is a Logic Master Module within the INFI 90 Distributed Control System (DCS). It operates as the central control element responsible for executing user-configured logic and managing control operations. Designed for high-reliability industrial environments, the NLMM02 ensures deterministic performance and integration within critical process control systems.
Technical Specifications
| Parameter | Description | 
|---|---|
| Manufacturer | ABB Bailey | 
| Model Number | NLMM02 | 
| Part Number | 6635814A1 | 
| System | INFI 90 Distributed Control System | 
| Function | Logic Master Module | 
| Power Supply | Typically powered via INFI 90 chassis | 
| Interface | INFI-NET | 
| Dimensions (H × W × D) | 178 × 76 × 254 mm | 
| Weight | 0.4 kg | 
| Operating Temperature | 0°C to 60°C | 
| Mounting | Rack-mounted | 
Applications
- 
Process automation systems in power generation 
- 
Petrochemical and chemical manufacturing 
- 
Water and wastewater treatment plants 
- 
Paper and pulp industries 
- 
Continuous and batch process industries using INFI 90 DCS 
Product Advantages
- 
Seamless integration into INFI 90 control systems 
- 
High reliability for critical control operations 
- 
Modular and easily replaceable design 
- 
Supports advanced logic execution 
- 
Stable and efficient performance in harsh environments 
Frequently Asked Questions (FAQ)
Q1: What is the function of the NLMM02 module?
A1: It acts as the Logic Master Module in the INFI 90 system, executing user-defined control logic.
Q2: Is NLMM02 hot-swappable?
A2: Yes, it is designed for online replacement without disrupting system operation.
Q3: What communication protocol does NLMM02 use?
A3: It utilizes INFI-NET for communication within the INFI 90 DCS.
Q4: Can NLMM02 be used in hazardous environments?
A4: It should be installed in approved enclosures suitable for the environment to meet safety requirements.
Q5: What kind of control strategies can NLMM02 support?
A5: It supports both continuous and batch process control logic.
Q6: Is any programming software required for configuration?
A6: Yes, ABB’s configuration tools compatible with INFI 90 systems are needed.
Q7: How is NLMM02 mounted?
A7: It is rack-mounted into an INFI 90 system chassis.
Q8: Does NLMM02 require regular maintenance?
A8: Routine checks for connection integrity and firmware updates are recommended.
Q9: What happens if the module fails during operation?
A9: The system will flag the error, and the module can be replaced online without shutdown.
Q10: How can I monitor the status or health of the NLMM02 module in operation?
A10: The status can be monitored via system diagnostic tools in the INFI 90 DCS, which provide real-time health and performance indicators of the NLMM02 module.
Related or Same-Series ABB Models
| Model | Description | Dimensions (mm) | Weight | 
|---|---|---|---|
| NLMM01 | Logic Manager Module | 178 × 76 × 254 | 0.4 kg | 
| INNIS01 | Network Interface Slave Module | 178 × 76 × 254 | 0.4 kg | 
| INNPM01 | Network Processing Module | 178 × 76 × 254 | 0.4 kg | 
| IMMFP12 | Multi-Function Processor | 178 × 76 × 254 | 0.4 kg | 
| IMCPM02 | Control Processor Module | 178 × 76 × 254 | 0.4 kg | 
| IMDSI12 | Digital Input Module | 178 × 76 × 254 | 0.4 kg | 
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