The ABB Bailey IMQRS02 is a Quad Redundant System (QRS) interface module used in the INFI 90 distributed control system (DCS). It is designed to support high-integrity control architectures where redundancy, fault tolerance, and continuous operation are essential.
This module is commonly implemented in safety-critical industrial environments such as power generation plants and large process industries. It provides redundancy coordination, system synchronization, and reliable communication between control modules, ensuring uninterrupted operation even in the event of hardware failure.
Technical Specifications
| Item | Specification |
|---|---|
| Product Type | Quad Redundant System Module |
| System | ABB Bailey INFI 90 DCS |
| Function | Redundancy control and system coordination |
| Architecture | Quad redundancy (QRS) |
| Communication | Controlway / INFI 90 system bus |
| Interface | Backplane rack integration |
| Power Supply | +5 V DC |
| Current Consumption | ~400–600 mA |
| Processing Role | Redundancy management & synchronization |
| Module Format | Single-slot rack-mounted PCB |
| Compatibility | INFI 90 / Symphony legacy systems |
| Operating Temperature | 0°C to 70°C |
| Humidity | 5%–95% non-condensing |
| Protection Class | Industrial control environment rated |
Dimensions & Weight
| Item | Value |
|---|---|
| Size (L × W × H mm) | 37 × 314 × 178 mm |
| Weight | approx. 0.3 – 0.5 kg |
Recommended Related Models
- ABB IMQRS01 – earlier redundancy system module
- ABB IMMFP11 / IMMFP12 – multifunction processor modules
- ABB IMMPI01 / IMMPI02 – communication interface modules
- ABB INNPM11 – network processing module
- ABB IMDSI / IMDSO series – I/O modules for redundancy systems
Popular ABB Bailey Models
- INFI 90 processor modules (IMMFP series)
- Harmony redundant control systems
- Bailey Net 90 distributed architecture
- ABB Symphony Plus redundancy platforms
- ABB legacy DCS safety and control modules
