Description
ABB AO845A
Technical Specifications:
- Order Code: 3BSE045584R1
- Channels: 8 single-polarity analog output channels
- Signal Type: 4-20 mA DC current
Functional Features:
- Seamless Upgrade Path: Fully backward-compatible with existing AO845 installations.
- HART Passthrough: Enables bidirectional digital communication with smart field instruments.
- Robust Diagnostics: Continuous self-testing for reliable operation in critical processes.
Application Scenarios:
- Process automation requiring high-integrity analog signal generation.
- Environments utilizing HART-enabled field devices for asset management.
Performance Parameters:
- Reliability: Engineered for continuous 24/7 industrial operation with minimal drift.
Material Composition & Structural Features:
- Housing: Flame-retardant, anti-static industrial plastic enclosure.
- Connectors: High-reliability backplane and field wiring terminals.
Working Principle:
Operates identically to the AO845 by converting digital bus data to analog current loops, with refined internal circuitry for enhanced signal stability.
Installation Requirements:
- Direct drop-in replacement for the AO845 module.
- Follow standard S800 I/O installation guidelines for grounding and shielding.
Usage Precautions:
- Ensure the system firmware supports the AO845A variant if upgrading from older revisions.
- Maintain proper ESD precautions during handling.





