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This multifunction controller module combines analog and digital I/O in one unit. It executes control strategies without requiring separate I/O modules. The unit mounts in any INFI 90 rack slot for compact system design.
Technical specifications
| Parameter | Specification |
|---|---|
| Brand | ABB Bailey |
| Model | ABB Bailey NMFC01 |
| Product Family | INFI 90 |
| Category | Multifunction Controller Module |
| Analog Inputs | 8 (eight) channels |
| Analog Input Types | 0-20mA, 4-20mA, 0-10V (selectable) |
| Analog Input Resolution | 14 bits |
| Analog Input Accuracy | ±0.1% of full scale |
| Analog Outputs | 4 (four) channels |
| Analog Output Types | 4-20mA or 0-10V |
| Analog Output Resolution | 12 bits |
| Analog Output Accuracy | ±0.2% of full scale |
| Digital Inputs | 8 (eight) 24V DC |
| Digital Outputs | 8 (eight) transistor, 0.5A |
| Processor Speed | 40 MHz |
| Program Memory | 1 MB Flash |
| Data Memory | 512 KB RAM |
| Communication Ports | 1 x RS-232, 1 x RS-485 |
| Component Count | Approximately 155 components |
| Integrated Circuits | 24 ICs (CPU, ADC, DAC, drivers) |
| Power Supply | 24V DC external |
| Current Consumption | 300 mA typical |
| Status Indicators | 20 x LEDs (I/O status), 3 x LEDs (PWR, RUN, FLT) |
| Energy Storage | 1 x lithium battery (RAM backup) |
| Battery Life | Approximately 3 years |
| Dimensions (L x W x H) | Approx. 24 cm x 12 cm x 3.5 cm |
| Weight | Approx. 0.55 kg |
| Operating Temperature | 0°C to 55°C |
| Mounting | INFI 90 rack slot |
Detailed Technical Analysis
This multifunction module integrates 8 analog inputs, 4 analog outputs, and 16 digital I/O. It executes control algorithms using its onboard 40 MHz processor. The unit stores its program in 1 MB of flash memory. It uses another 512 KB of battery-backed RAM for dynamic data.
Now let us examine its analog capabilities. The analog inputs accept current or voltage signals with 14-bit resolution. Each analog output delivers 4-20mA or 0-10V for final control elements. The digital inputs read 24V DC signals from field sensors. The digital outputs drive small actuators at 0.5 amps per channel.
This controller draws 300 milliamps from a 24V DC external supply. Twenty LEDs show the status of all I/O points. Three additional LEDs indicate power, run, and fault status. A lithium battery preserves RAM contents for up to three years. The ABB Bailey NMFC01 provides optical isolation for all field I/O.
Installation and Configuration Guidelines
You insert this module into any available INFI 90 rack slot. Connect the 24V DC power supply to the designated terminals. Wire field devices to the input and output terminal blocks. Select input ranges using jumper blocks on the module.
Configure the control program using ABB Bailey engineering software. Download the configuration through the RS-232 programming port. The module automatically executes its program upon power-up. Replace the lithium battery every three years to prevent data loss.
Practical Applications
Engineers use this multifunction module for INFI 90 system expansion and compact control. It suits small to medium process applications with mixed I/O requirements. This component also works in legacy DCS retrofit projects. Its all-in-one design saves rack space significantly.
Summary of Features
To conclude, this multifunction module offers 8 analog inputs, 4 analog outputs, and 16 digital I/O. It weighs 0.55 kilograms and includes a lithium battery backup. Choose ABB Bailey NMFC01 for compact multifunction control in INFI 90 systems.