B&R X20AI4622 Analog Input Module

The B&R X20AI4622 is a high-precision analog input module within the X20 I/O system, offering four channels configurable for voltage or current signals. This module provides 13-bit converter resolution including sign, enabling accurate measurement of industrial sensors and transmitters. It is designed for applications requiring reliable acquisition of analog process variables such as temperature, pressure, flow, and position.

Technical Specifications

The X20AI4622 features four analog input channels with selectable input ranges including ±10 V or 0 to 20 mA / 4 to 20 mA. The 13-bit digital converter resolution ensures adequate precision for most industrial measurement applications. Selection between current and voltage signals is accomplished using different connection terminals on the module, simplifying configuration changes when sensor types vary. The module is equipped with a configurable input filter featuring input ramp limiting, allowing engineers to optimize response time versus noise rejection based on application requirements.

Power consumption from the bus is 0.01 W, while internal I/O consumption is 1.1 W. The module supports a wide operating temperature range from -25°C to 60°C in horizontal mounting orientation, and -25°C to 50°C in vertical orientation. Storage and transport temperature ranges from -40°C to 85°C. Relative humidity tolerance is 5 to 95% non-condensing for both operation and storage conditions.

Key Features

• 4 analog inputs, individually configurable per channel

• Voltage ranges: ±10 V

• Current ranges: 0 to 20 mA or 4 to 20 mA

• 13-bit converter resolution including sign

• Configurable input filter with ramp limiting

• Channel isolated from bus, channels not isolated from each other

• LED status indicators for I/O function, operating state, and module status

• Diagnostic capabilities via LED and software

• CE, UKCA, ATEX Zone 2, cULus, and DNV certifications

Configuration and Software

Using B&R Automation Studio, engineers can assign measurement ranges, configure filtering parameters, and set scaling for each channel. The module provides diagnostic information through both LED status indicators and software monitoring, including detection of wire break conditions for current loops. The minimum cycle time must exceed 500 μs for proper operation of the input filter. Analog input values are mapped to registers depending on the configured operating mode, using INT data type representation.

Integration with X20 System

The X20AI4622 integrates seamlessly into the B&R X20 I/O system architecture. It requires a bus module such as X20BM11 or X20BM15 and a terminal block such as X20TB12, which are ordered separately. The module has a 12.5 mm pitch and supports both horizontal and vertical mounting orientations. It is compatible with all X20 CPUs and fieldbus couplers, including POWERLINK, PROFINET, and EtherCAT systems. The module supports hot-swappable installation within X2X Link networks.

Applications

Typical applications include monitoring pressure sensors, flow meters, level transmitters, and analog output transducers. The module is suitable for PID loop feedback in process control applications, data acquisition systems, and general-purpose measurement in manufacturing environments. Its compact form factor and configurable filtering make it ideal for applications requiring flexibility in signal conditioning. The module high accuracy and robust design ensure reliable measurement in industrial settings.

Conclusion

The B&R X20AI4622 analog input module delivers precision, flexibility, and reliability for industrial measurement applications. With four configurable channels, 13-bit resolution, and extensive diagnostic capabilities, it provides engineers with a robust solution for analog signal acquisition. Its seamless integration into the X20 I/O system reduces engineering effort while ensuring high signal integrity.