- Acquires eight 0 to 20 mA or 4 to 20 mA differential channels
- Converts all inputs in one millisecond with 12-bit resolution
- Includes reverse-polarity protection, supply-wiring protection, and channel diagnostics
X20AI8321 is a B&R analog current input module designed for X20 System I/O stations.
The module concentrates eight process-current loops in one X20 slice while isolating the channel group from the bus.
Before installation or replacement, verify the complete material number, 0 to 20 mA or 4 to 20 mA mode, external loop power, channel polarity, total wiring layout, common-mode voltage, scaling, hardware revision for power data, X20TB1F, X20BM11 or X20BM15, and fault handling.
Availability, condition, price, and shipping time for X20AI8321 are confirmed during quotation.
B&R X20AI8321 Analog Current Input Module Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- External transmitter or loop power is required where the field device needs it
- Each current loop must be wired with correct polarity and common reference
- The X20TB1F 16-pin terminal block is required for the eight-channel layout
- Reverse-polarity protection helps protect incorrectly connected current loops
- The controller can receive a configurable digital value during overload
- Open-loop and under-range behavior should be defined in the application for 4 to 20 milliamp signals
- The input group is isolated from the bus but channels are not isolated from one another
- Hardware revision D0 changes the documented internal I/O power value
- Scaling, alarms, and transmitter fault thresholds are configured in the controller project
- Eight-channel 4 to 20 mA process-transmitter acquisition
- High-density 0 to 20 mA measurement in distributed X20 I/O
- Multi-sensor current-loop monitoring in machine and process-control stations