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- ABB Bailey
- AIN300 P-HB-AIN-30010 000
- Analog Input Module
- Sweden (SE)
- 266 x 76 x 162 mm
- 1.7 kg
- Xiamen, China
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Product Overview
The ABB Bailey AIN300 Analog Input Module is an advanced input module used in the ABB Bailey INFI 90 / Harmony Distributed Control System (DCS). It is designed to acquire and process analog signals from industrial field instruments such as transmitters, sensors, and measurement devices.
Compared with earlier AIN-series modules, the AIN300 provides higher performance, improved accuracy, and expanded input capability, making it suitable for more demanding process control applications in legacy ABB DCS installations.
Technical Specifications
| Parameter | Details |
|---|---|
| Manufacturer | ABB (Bailey) |
| Model | AIN300 |
| Part Number | P-HB-AIN-30010 000 |
| Product Type | Analog Input Module |
| System | ABB INFI 90 / Harmony DCS |
| Function | Analog signal acquisition and conversion |
| Input Types | 4–20 mA, voltage, RTD (system dependent configuration) |
| Channel Capacity | Multi-channel high-density analog input |
| Signal Processing | Filtering, scaling, digitization |
| Resolution | High-resolution A/D conversion (system dependent, up to industrial-grade precision) |
| Isolation | Channel and system isolation (architecture dependent) |
| Installation Type | Rack-mounted DCS module |
| Communication | Backplane integration (INFI 90 system bus) |
| Application | Process monitoring and control |
| Dimensions | 266 × 76 × 162 mm |
| Weight | 1.7 kg |
Function and Working Principle
The AIN300 operates as a high-performance analog signal acquisition interface within the DCS.
Its main functions include:
- Receiving analog signals from field instruments
- Supporting multiple signal types (current, voltage, RTD depending on configuration)
- Converting analog inputs into digital process values
- Applying filtering and signal conditioning for stability
- Transmitting processed data to the control processor
It ensures accurate representation of real-time process conditions for control and monitoring.
Key Improvements Over AIN200
The AIN300 is generally considered an upgraded generation of the AIN series, offering:
- Higher channel density and improved input capability
- Enhanced signal accuracy and stability
- Better support for advanced field instruments (including RTDs in some configurations)
- Improved noise immunity and signal conditioning
- Stronger system integration within INFI 90 / Harmony architectures
Role in Industrial Control Systems
Within ABB Bailey DCS systems, the AIN300 belongs to the input acquisition layer.
Typical roles include:
- Continuous monitoring of process variables
- Feedback for control loops
- Alarm and trip condition detection
- Supporting closed-loop process automation
- Providing real-time plant data to controllers
Industrial Applications
The ABB AIN300 is widely used in:
- Power generation plants
- Oil and gas facilities
- Petrochemical and refining industries
- Chemical processing plants
- Water treatment systems
- Heavy industrial automation
- Legacy ABB Bailey INFI 90 / Harmony installations
Installation and System Integration
For reliable operation:
- Install in compatible ABB INFI 90 / Harmony rack systems
- Ensure correct slot assignment and configuration
- Use shielded wiring for analog and RTD signals
- Maintain proper grounding to reduce noise interference
- Separate analog wiring from high-power cables
- Perform calibration and loop checks during commissioning
Compatible System Components
The AIN300 typically works with:
- ABB Bailey INFI 90 controllers (e.g., BRC300 systems)
- Analog output modules (AOT series)
- Digital input/output modules
- Power supply modules
- Field transmitters (4–20 mA devices)
- RTD and temperature measurement devices
- System communication processors
Recommended Alternative Models
| Model | Product Type | Key Feature | Application |
|---|---|---|---|
| AIN300 | Analog Input Module | High-performance DCS input | ABB INFI 90 systems |
| AIN200 | Analog Input Module | Standard analog acquisition | Legacy systems |
| AIN220 | Analog Input Module | RTD-focused input variant | Temperature monitoring |
| ABB S800 AI | Analog Input Module | Modern ABB system integration | 800xA systems |
| HIMA F6204 | Analog Input Module | Safety-rated input module | SIS / ESD systems |
Key Advantages
- High-performance analog signal acquisition
- Improved accuracy over earlier AIN modules
- Strong compatibility with ABB Bailey systems
- Supports multiple industrial signal types
- Reliable operation in continuous processes
- Robust industrial-grade construction
- Suitable for critical process monitoring
- Proven performance in legacy DCS environments
Technical FAQs
What is the main function of the AIN300?
It collects and processes analog signals from field instruments for use in ABB Bailey DCS control systems.
What systems is it used in?
It is used in ABB INFI 90 and Harmony distributed control systems.
What signals does it support?
Typically 4–20 mA, voltage inputs, and in some configurations RTD temperature inputs.
Is it still in use today?
Yes, mainly in legacy industrial plants that still operate ABB Bailey DCS systems.
Conclusion
The ABB Bailey AIN300 Analog Input Module is a high-performance upgrade within the INFI 90 / Harmony DCS family. Its improved accuracy, expanded signal handling capability, and robust industrial design make it a key component for reliable process monitoring and control in legacy ABB automation systems.