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Description
The ABB AI845-eA (3BSE023675R2) is a high-performance analog input module designed for the ABB 800xA control system. This module provides 8 channels of analog input and supports HART communication, allowing for advanced device configuration and diagnostics. The AI845-eA is engineered for flexible deployment, supporting both single and redundant configurations to meet the availability requirements of critical process automation applications.
Features
- 8 analog input channels with support for HART protocol.
- Supports both single and redundant module configurations.
- Integrated current-limited transmitter power distribution.
- Advanced on-board diagnostics for improved system reliability and troubleshooting.
- High resolution 12-bit conversion with 0.1% accuracy.
- Compatible with a wide range of Module Termination Units (MTUs) including TU810, TU812, TU814, TU818, TU830, TU833, TU835, TU838, TU844, TU845, and TU854.
Technical Specifications
| Product ID |
3BSE023675R2 |
| Type Designation |
AI845-eA |
| Number of Channels |
8 |
| Input Signals |
0(4) to 20 mA, 0(1) to 5 V |
| Resolution |
12-bit |
| Accuracy |
0.1% |
| Rated Isolation |
50 V |
| Channel Type |
Analog Input (AI) |
Installation Guidelines
- Ensure the control system is powered down before inserting or removing the module from the Module Termination Unit (MTU).
- The AI845-eA must be mounted on a compatible MTU; verify the specific MTU model matches your application requirements (e.g., TU810, TU830).
- Maintain proper grounding practices to minimize electromagnetic interference (EMI) and ensure signal integrity.
- Route signal cables separately from high-voltage power lines to prevent noise induction.
- Handle the module with care to prevent electrostatic discharge (ESD) damage; use a grounded wrist strap when handling internal components.
FAQ
Does this module support redundant operation?
Yes, the AI845-eA is designed to support both single and redundant input configurations, depending on the chosen Module Termination Unit (MTU) and system architecture.
What is the primary function of the HART capability on this module?
The HART support allows the module to communicate with intelligent field devices, enabling remote configuration, monitoring, and advanced diagnostics alongside the standard analog process values.
