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Product Description
The ABB Bailey NMFC04 Multi-Function Controller is a critical component of the Net 90 process control system, engineered for executing complex digital and analog control strategies. It integrates with slave modules via a Slave Expander Bus and supports redundancy to ensure uninterrupted operation. With onboard configuration, powerful diagnostics, and compatibility with a wide range of termination modules, the NMFC04 enhances system flexibility and control reliability.
Technical Specifications
| Parameter | Value |
|---|---|
| Processor | 68000 CMOS microprocessor, 12 MHz |
| Memory | 256 KB EPROM, 256 KB RAM, 64 KB Non-Volatile RAM |
| Redundancy Support | Yes, hot standby configuration |
| Module Bus | 83.3 kbps, supports up to 32 modules |
| Slave Expander Bus | 8-bit parallel, supports up to 64 slaves |
| Power Consumption | Max. 1.6 A at +5 VDC (8 W) |
| Mounting | One slot in INFI 90 MMU |
| Communication Channels | Module Bus, Slave Expander Bus, Redundancy Link, Station Link |
| Environmental Temp. | 0°C to 70°C |
| Relative Humidity | 5–95% RH (non-condensing, up to 55°C) |
| Dimensions (mm) | 200 × 100 × 30 |
| Weight | 0.77 kg |
Applications
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Process automation in power plants
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Oil & gas pipeline and refining systems
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Chemical and petrochemical manufacturing
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Pulp and paper industry control systems
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Industrial water treatment automation
Advantages
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Redundant Configuration: Provides failover capability without control loss
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Online Configuration: Enables configuration updates without process interruption
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Comprehensive Diagnostics: LED indicators and internal software help identify issues quickly
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Modular Expandability: Supports a wide array of analog/digital I/O slaves
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Integrated Clock/Timer: Enables synchronized control execution
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Flexible Communication: Multiple links for redundancy, stations, and I/O modules
FAQ (Frequently Asked Questions)
Q1: What does the NMFC04 control?
A1: It handles analog and digital process control strategies in distributed automation systems.
Q2: Is the NMFC04 capable of redundancy?
A2: Yes, it supports hot-standby redundancy using another NMFC04 module.
Q3: Can it be configured while running?
A3: Yes, through the online configuration feature without halting the process.
Q4: What is the power requirement?
A4: It requires +5 VDC at up to 1.6 A (8 W).
Q5: How many slave modules can it support?
A5: It supports up to 64 slave modules on the Slave Expander Bus.
Q6: What is the processor used?
A6: It uses a 12 MHz Motorola 68000 CMOS microprocessor.
Q7: Can it work in corrosive environments?
A7: No, it must be installed in non-corrosive environments only.
Q8: What happens if the primary controller fails?
A8: The backup controller takes over immediately with no process interruption.
Q9: What memory types does it include?
A9: It includes EPROM, RAM, and battery-backed nonvolatile RAM.
Q10: Does it provide status indicators?
A10: Yes, it features group and status LEDs for operational and error diagnostics.
Related Models (Same Series or Function)
| Model | Description | Dimensions (mm) | Weight |
|---|---|---|---|
| IMMFC04 | INFI 90 version of NMFC04 | 200 × 100 × 30 | 0.77 kg |
| IMASI02 | Analog Input Slave Module | 200 × 100 × 30 | 0.76 kg |
| IMASO01 | Analog Output Slave Module | 200 × 100 × 30 | 0.78 kg |
| IMDSI02 | Digital Input Slave Module | 200 × 100 × 30 | 0.75 kg |
| IMDSO04 | Digital Output Module, 16 OC Outputs | 200 × 100 × 30 | 0.79 kg |
| IMRIO02 | Remote I/O Slave Module | 200 × 100 × 30 | 0.80 kg |
Popular ABB Bailey Models
| Model | Description | Dimensions (mm) | Weight |
|---|---|---|---|
| NTAI03 | Infi 90 Analog Input Termination Unit | 260 × 180 × 40 | 1.10 kg |
| NTAM01 | Infi 90 Analog Master Termination Unit | 260 × 180 × 40 | 1.15 kg |
| NTAO01 | Infi 90 Analog Output Termination Unit | 260 × 180 × 40 | 1.05 kg |
| NTCF01 | Infi 90 Termination Unit | 260 × 180 × 40 | 1.20 kg |
| NTCF02 | Infi 90 Termination Unit (Extended Function) | 260 × 180 × 40 | 1.22 kg |
| NTDI01 | Digital I/O Termination Unit | 260 × 180 × 40 | 1.08 kg |
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