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- ABB
- AI845
- Analog Input Module
- Sweden
- 90 mm × 120 mm × 40 mm
- 0.6kg
- 3BSE023675R1
- Xiamen, China
- New & In Stock
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ABB AI845 (3BSE023675R1) — In-Depth Product Summary
Product Overview
The ABB AI845 (3BSE023675R1) is a high-performance industrial analog input module designed for use in advanced automation and process control installations. It functions as a precision interface between field devices such as sensors and transmitters and the main control system. The AI845 acquires analog voltage and current signals, conditions them, and converts them into reliable digital values that can be read by controllers and data acquisition systems.
This module is engineered for prolonged, continuous use in demanding industrial environments featuring electrical noise, temperature variations, and sustained operational demands. Its robust construction and modular design provide flexibility for system expansion, simplified serviceability, and efficient plant operation.
Brand and Series
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Brand: ABB
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Product Series: Analog Input Module Series — a family of modular I/O building blocks used in distributed control systems (DCS) and programmable logic controller (PLC) environments.
The Analog Input Module Series includes modules with varying channel counts, performance characteristics, and signal type capabilities. These modules support analog acquisition tasks across manufacturing, energy, infrastructure, and process industries.
Product Introduction
The AI845 module is purpose-built for industrial monitoring and control applications that require stable high-resolution acquisition of analog data from field instruments. This product handles multiple analog channels in one module, executing signal conditioning, isolation, and noise filtering to ensure the integrity of measurements.
AI845’s design emphasizes serviceability and ease of integration. It can be installed in DIN-rail mounted cabinets or modular rack architectures. Status indicators on the module provide real-time feedback on power and channel operation, making it easier for technicians to verify performance or troubleshoot issues.
Its modular nature supports flexible system configurations and makes AI845 suited for both new projects and upgrades to existing automation systems.
Applications
The AI845 module is widely applied across a range of industrial and building automation scenarios:
Process Control Systems
Used in continuous and batch manufacturing such as chemical processing, food and beverage, pharmaceuticals, and petrochemical operations. AI845 reads analog feedback from temperature, pressure, flow, and level sensors.
Factory Automation
Integrated into production line controllers for real-time data acquisition and machine monitoring. Analog signals from position sensors, speed transducers, and force measurement devices are processed through the module.
Energy Monitoring and Power Systems
AI845 captures analog measurements from voltage, current, and frequency monitoring devices in energy distribution panels and substations often tied to supervisory control systems.
Environmental and Building Management
In large infrastructure, AI845 supports systems such as HVAC control, water treatment monitoring, emission tracking, and condition monitoring of facilities.
Research and Test Environments
Used in laboratory and testing installations where accurate multi-channel analog measurements are required under controlled conditions.
Product Advantages
Multi-Channel Analog Input
Supports many channels in one compact package, enabling large-scale analog acquisition without excessive module proliferation.
High Precision and Stability
Delivers accurate and repeatable results with high-resolution analog-to-digital conversion and consistent signal conditioning.
Industrial Durability
Constructed to withstand electrical noise, vibration, temperature swings, and long-term operational loads.
Modular Integration and Scalability
Fits into standard modular systems with ease, supporting scalability for future upgrades without redesign.
Built-In Diagnostics
LED indicators for power and channel states provide immediate visual feedback, aiding system maintenance and reducing downtime.
Technical Specifications
| Specification | Details |
|---|---|
| Model | AI845 (3BSE023675R1) |
| Module Type | Analog Input Module |
| Number of Channels | 16 analog input channels |
| Input Signal Types | Voltage: ±10V, 0–10V; Current: 4–20 mA, 0–20 mA |
| Resolution | 16-bit |
| Input Impedance | >1 MΩ |
| Sampling Time | ~30 ms per channel |
| Accuracy | ±0.1% of full scale |
| Power Consumption | 3.0 W |
| Operating Temperature | –20°C to +60°C |
| Storage Temperature | –40°C to +85°C |
| Isolation | Channel-to-system isolation |
| Dimensions (H×W×D) | 90 mm × 120 mm × 40 mm |
| Weight (kg) | 0.60 kg |
| Mounting Method | DIN rail / Modular rack |
| Status Indicators | Power and channel LED indicators |
Related Models — Same Series or Similar Function
| Model | Channels | Input Type | Resolution | Power (W) | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| AI810 | 8 | Voltage / Current | 16-bit | 1.5 | 90 × 120 × 25 | 0.30 |
| AI815 | 8 | Voltage / Current | 16-bit | 2.0 | 90 × 120 × 25 | 0.35 |
| AI820 | 16 | Voltage / Current | 16-bit | 3.0 | 90 × 120 × 40 | 0.55 |
| AI830 | 8 | Voltage / Current | 16-bit | 2.0 | 90 × 120 × 25 | 0.38 |
| AI843 | 8 | Voltage / Current | 16-bit | 2.5 | 90 × 120 × 30 | 0.45 |
Other Popular Models — Same Brand
| Model | Function | Channels/Outputs | Resolution/Type | Power (W) | Dimensions (mm) | Weight (kg) |
|---|---|---|---|---|---|---|
| DI810 | Digital Input Module | 16 digital inputs | Digital | 2.0 | 90 × 120 × 25 | 0.32 |
| DO810 | Digital Output Module | 16 digital outputs | Digital | 2.0 | 90 × 120 × 25 | 0.33 |
| AO820 | Analog Output Module | 16 analog outputs | 16-bit | 3.0 | 90 × 120 × 40 | 0.50 |
| AI880 | Analog Input Extended Range | 8 input channels | 16-bit | 2.0 | 90 × 120 × 30 | 0.35 |
| CI840 | Communication Interface Module | Network interface | Ethernet / Fieldbus | 3.5 | 90 × 120 × 40 | 0.60 |
Frequently Asked Questions (FAQ)
Q1: What analog signal types can AI845 process?
A1: AI845 is designed to process both voltage (±10V, 0–10V) and current (4–20 mA, 0–20 mA) analog signals.
Q2: How many analog input channels does AI845 support?
A2: The AI845 supports 16 independent analog input channels.
Q3: What is the analog resolution of AI845?
A3: The module features a 16-bit resolution for high-precision signal conversion.
Q4: What is the operating temperature range for AI845?
A4: The AI845 can operate reliably between –20°C and +60°C.
Q5: What is the approximate weight of the module?
A5: The AI845 weighs approximately 0.60 kilograms.
Q6: Is the module suitable for electrically noisy environments?
A6: Yes, AI845 includes signal conditioning and isolation features to minimize the impact of electrical noise.
Q7: How is AI845 mounted in control systems?
A7: The module is mounted via DIN rail or within a modular rack system.
Q8: What power consumption does AI845 require?
A8: The typical power consumption is approximately 3.0 watts.
Q9: Does AI845 provide diagnostic indications?
A9: Yes, it includes LED indicators for power and channel status for easier diagnostics.
Q10: Can AI845 be expanded as part of a larger automation system?
A10: Yes, its modular design allows it to be combined with other modules in a scalable automation system.