Description

The B&R AO352 is a high-precision analog output module designed for integration into B&R’s advanced X20 system, representing the cutting edge of industrial automation technology. This sophisticated module provides exceptional analog signal generation capabilities for precise control of field devices in demanding automation applications. The B&R AO352 serves as a critical interface between digital control systems and analog actuators, converting digital commands from the controller into precise analog output signals including ±10 V voltage outputs and 0/4-20 mA current signals. Engineered to meet the rigorous demands of modern industrial automation, this module delivers outstanding accuracy and stability for controlling proportional valves, servo drives, and other analog-controlled devices in continuous process and motion control applications.

As part of B&R’s innovative X20 system architecture, the B&R AO352 exemplifies the company’s commitment to precision engineering and system integration excellence. The module features eight independent output channels, each configurable for either voltage or current output, providing exceptional flexibility for diverse application requirements. The B&R AO352 incorporates advanced signal conditioning and filtering technologies that ensure clean, stable output signals even in electrically noisy industrial environments. Its compact design and high channel density make it ideal for space-constrained applications while maintaining the performance and reliability that B&R systems are known for worldwide.

The module’s design emphasizes both operational performance and maintenance efficiency, featuring comprehensive diagnostic capabilities that monitor output channel status and signal integrity. The B&R AO352 supports hot-swappable operation in redundant system configurations, ensuring continuous operation during maintenance activities. With its seamless integration into B&R’s Automation Studio engineering environment, the module simplifies configuration, commissioning, and troubleshooting processes, reducing engineering time and maximizing system availability in critical automation applications.

AO352 B&R

Technical Specifications

Parameter Name	Parameter Value
Product Model	AO352
Manufacturer	B&R Industrial Automation
Product Type	Analog Output Module
Number of Channels	8 channels
Output Types	±10 V, 0-20 mA, 4-20 mA
Resolution	16-bit
Accuracy	±0.1% of full scale
Update Time	400 μs per channel
Load Capacity	Voltage: ≥ 2 kΩ, Current: ≤ 500 Ω
Power Supply	24 V DC (via system bus)
Power Consumption	2.5 W (typical)
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 85°C
Relative Humidity	10% to 95% (non-condensing)
Isolation	500 V AC (channel to bus)
Connection Technology	Spring-loaded terminals
Safety Standards	UL, cUL, CE, ATEX

Main Features and Advantages

The B&R AO352 delivers exceptional signal quality and precision through its advanced 16-bit digital-to-analog conversion technology, ensuring accurate output generation for the most demanding control applications. Each channel is individually configurable for voltage or current output, providing maximum flexibility to match specific actuator requirements without needing different module types. The module incorporates sophisticated signal conditioning with low-pass filtering and output smoothing, minimizing noise and ensuring stable analog signals even in electrically challenging environments. The B&R AO352 features automatic cable break detection for current outputs and short-circuit protection for voltage outputs, enhancing system reliability and protecting connected field devices.

Enhanced system integration and diagnostics: The B&R AO352 offers seamless integration with B&R’s Automation Studio environment, providing intuitive configuration tools, comprehensive diagnostics, and real-time monitoring capabilities. The module’s extensive diagnostic features include output value monitoring, wire break detection, overload indication, and temperature monitoring, enabling predictive maintenance and reducing unexpected downtime. The B&R AO352 supports B&R’s X2X Link system bus communication, providing high-speed data exchange and synchronization with other system components. This integration ensures optimal performance in complex automation systems where precise timing and coordination between multiple axes and processes are critical.

Operational reliability and flexibility: The B&R AO352 is designed for maximum operational reliability with robust protection features including reverse polarity protection, overvoltage protection, and electromagnetic compatibility meeting industrial standards. The module’s compact design and high channel density optimize control cabinet space while maintaining excellent thermal performance. The spring-loaded connection technology ensures secure wiring and vibration resistance, crucial for applications in mobile equipment or high-vibration environments. The B&R AO352 also supports hot-swapping in redundant system configurations, allowing maintenance and replacement without system shutdown, significantly enhancing system availability and reducing maintenance costs.

Application Field

The B&R AO352 finds extensive application in precision automation systems requiring high-accuracy analog control. In industrial manufacturing, the module is deployed for controlling proportional hydraulic valves in injection molding machines, press controls, and material handling equipment, where precise pressure and flow control are essential for product quality and process efficiency. The B&R AO352 is also utilized in web handling and converting machinery for tension control applications, providing precise analog signals to brake controllers and clutch systems that maintain consistent material tension during high-speed processing.

Process industries employ the B&R AO352 for critical control applications in chemical processing, pharmaceutical manufacturing, and food & beverage production. The module provides precise analog signals to control valves, variable frequency drives, and proportional actuators that regulate flow rates, mixing ratios, and process parameters. In test and measurement applications, the B&R AO352 generates precise analog stimuli for product testing and validation systems. The module’s high accuracy and stability make it particularly valuable in these applications where consistent product quality and process repeatability are paramount.

The B&R AO352 is also extensively used in energy management systems for controlling turbine governors, excitation systems, and power factor correction equipment. In building automation, the module provides control signals for HVAC systems, balancing energy efficiency with environmental control requirements. In each application, the B&R AO352 delivers the precision, reliability, and flexibility needed to implement sophisticated control strategies while maintaining the high performance and integration capabilities expected from B&R automation systems.

AO352 B&R

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