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Description
The ABB AI801 (3BSE020512R1) is an 8-channel analog input module designed for the S800 I/O series. This module is engineered for high-precision data acquisition in industrial process control environments, providing reliable conversion of analog current signals into digital values for processing by the controller.
Features
- Eight isolated analog input channels
- Input signal range: 0 to 20 mA
- 12-bit resolution for accurate signal representation
- Input impedance of 250 ohms
- Fast scanning time of 10 ms per channel
- Robust design suitable for operation in demanding industrial temperatures
Applications
The AI801 module is typically deployed in distributed control systems (DCS) or PLC architectures where monitoring of process variables such as flow, pressure, or level via current loops is required. It is commonly found in power generation, chemical processing, and manufacturing automation systems.
Technical Specifications
| Model |
AI801 |
| Order Code |
3BSE020512R1 |
| Channels |
8 |
| Input Signal |
0 to 20 mA |
| Resolution |
12-bit |
| Input Impedance |
250 Ohm |
| Accuracy |
+/- 0.1% of full-scale |
| Voltage Drop |
Max 5V |
| Scanning Time |
10 ms / channel |
| Operating Temperature |
-25 degC to +70 degC |
Installation Guidelines
- Ensure the system power is disconnected before installing or removing the module from the I/O base.
- Verify that the module is properly seated in the S800 I/O base to ensure secure backplane communication.
- Use shielded twisted-pair cabling for analog signal inputs to minimize electromagnetic interference (EMI).
- Maintain proper grounding practices for the cable shields to prevent ground loops.
- Ensure adequate ventilation in the cabinet to maintain the specified operating temperature range.
- Handle with care to prevent electrostatic discharge (ESD) damage during installation.
FAQ
What is the primary function of the ABB AI801 module?
The AI801 is an analog input module that converts 0-20 mA current signals from field instruments into digital data for use within an ABB Advant or S800 I/O-based control system.
Is this module compatible with existing S800 I/O stations?
Yes, the 3BSE020512R1 is designed for integration into standard S800 I/O mounting bases. Please confirm your system architecture supports the AI801 model before installation.
