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The ABB AO845A-EA (3BSE045584R2) is an 8-channel analog output module for the S800 I/O system, delivering 4-20mA signals with HART® 7 protocol support. Designed for critical process control, it offers ±0.1% accuracy, galvanic isolation, and advanced diagnostics. Fully compatible with ABB 800xA and Symphony® Plus systems, this rugged module ensures reliable performance in demanding industrial automation applications.
Product Specifications
Output Performance & Precision
8 isolated output channels with individual 4-20mA DC signals
16-bit resolution with ±0.1% full-scale accuracy
HART® 7 protocol support for smart device communication
Advanced Functionality
Embedded HART® modem for simultaneous analog/digital communication
Continuous signal monitoring with open-circuit detection
Hot-swappable design for maintenance without system shutdown
Robust Design
1500V AC channel-to-channel isolation
-25°C to +70°C operating range
Short-circuit and reverse polarity protection
System Integration
Native compatibility with ABB 800xA and Symphony® Plus
Supports S800 I/O redundancy
FOUNDATION Fieldbus and PROFIBUS PA connectivity
Typical Applications
Process control in oil/gas and power generation
Smart valve positioning systems
Critical automation requiring HART® integration
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