
Product Description
ABB AO845A Analog Output Module - Precision Control for Industrial Applications
The ABB AO845A (3BSE045584R1) is an advanced 8-channel analog output module engineered for the S800 I/O platform, delivering exceptional precision and reliability in demanding industrial environments. This HART-compatible module provides seamless integration with distributed control systems, enabling accurate signal transmission for critical process control applications.
Technical Specifications
- Output Channels: 8 independent analog outputs
- Signal Range: 4-20 mA current loop with HART communication overlay
- Resolution: 12-bit digital-to-analog conversion for precise control
- HART Protocol: Integrated support for bi-directional digital communication
- Loop Supervision: Advanced diagnostics with short-circuit and open-circuit detection
- Isolation: Channel-to-channel and channel-to-bus galvanic isolation
- Operating Temperature: -40°C to +70°C extended range capability
- Power Consumption: Optimized for energy-efficient operation
Application Scenarios
The AO845A excels in diverse industrial control scenarios including chemical processing plants, oil and gas refineries, pharmaceutical manufacturing, water treatment facilities, and power generation stations. Its robust design ensures reliable performance in controlling valve positioners, variable frequency drives, pneumatic actuators, and smart field instruments.
Integrated Solutions
This module seamlessly integrates with ABB's comprehensive S800 I/O ecosystem, working in conjunction with analog input modules, digital I/O components, and communication interfaces to create complete automation solutions. The HART protocol capability enables advanced diagnostics, remote configuration, and predictive maintenance strategies that reduce downtime and optimize operational efficiency.
Key Advantages
- Hot-swappable design minimizes system downtime during maintenance
- Redundancy support for mission-critical applications
- Comprehensive self-diagnostics with detailed fault reporting
- Compliance with international safety and EMC standards
- Backward compatibility with existing S800 installations
Related Products
Enhance your control system with these complementary modules:
- ABB AI815 Analog Input HART Module (3BSE052604R1) - 8-channel analog input with HART communication
- ABB AI845 Analog Input S/R HART Module (3BSE023675R1) - High-precision analog input with loop supervision
- ABB AO895 Intrinsically Safe Analog Output (3BSC690087R1) - IS-rated analog output for hazardous areas
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