The ABB Bailey IMMFP12 is a high-performance Multifunction Processor Module used in the INFI 90 / Symphony distributed control system (DCS). It serves as the central processing unit within a control rack, executing complex automation strategies such as loop control, sequence logic, batch processing, and advanced process regulation.
Engineered for mission-critical industrial environments, the IMMFP12 is widely deployed in power generation, oil & gas, and heavy process industries, where real-time reliability and deterministic control are essential. It delivers strong computational capability while maintaining full compatibility with ABB’s legacy Bailey architecture.
Technical Specifications
| Item | Specification |
|---|---|
| Product Type | Multifunction Processor Module |
| Series | ABB Bailey INFI 90 / Symphony |
| Processor | 32-bit CPU (16 MHz, 16-bit external bus) |
| Memory | 512 KB ROM / 512 KB RAM / 256 KB NVRAM |
| Power Supply | +5 V DC @ 2 A (approx. 10 W) |
| Control Functions | Loop, sequence, batch, advanced process control |
| Programming | C, BASIC, Ladder, Batch 90, function codes |
| Communication | Controlway / Cnet / Expander Bus |
| Serial Ports | RS-232 / RS-485 (configurable) |
| Link Speed | Up to 19.2 kbaud (serial), 1 Mbaud redundant link |
| I/O Support | Up to 64 station communication capability |
| Mounting Type | Single-slot INFI 90 rack module |
| Operating Temperature | 0°C to 70°C |
| Humidity | 5%–95% non-condensing |
Dimensions & Weight
| Item | Value |
|---|---|
| Size (L × W × H mm) | 298 × 35 × 178 mm |
| Weight | approx. 0.3 – 0.6 kg |
Recommended Related Models
- IMMFP11 – lower memory version of the processor module
- INNPM11 – network processor module for system communication
- IMDSI / IMDSO series – digital I/O modules for INFI 90 systems
- IMFEC / IMASI modules – analog input/output interface modules
- ABB Symphony Plus controllers – modern system replacement platform
Popular ABB Bailey Models
- INFI 90 processor modules (IMMFP series)
- Harmony rack controllers
- Bailey Controlway communication modules
- Symphony distributed control system components
- ABB Advant / legacy DCS systems
