ABB AI801 3BSE020512R1 | Analog Input Module |

Channel configuration
8-channel single ended unipolar current input, with a group of 8-channel ground isolation on the entire board, and no independent isolation between channels
Only supports current signals
0-20mA, 4-20mA (dedicated for two-wire pressure/flow/liquid level transmitters, does not support voltage, thermocouple)
Collection performance
AD resolution: 12 bits
Basic accuracy: ± 0.1% FS
Input sampling resistor: built-in 250 Ω (including PTC self recovery fuse)
Input filtering rise time: 180ms, 50/60Hz power frequency suppression>40dB
Full channel refresh cycle: 1ms
Maximum wiring distance: 600 meters
HART support
Native compatible with HART 5 smart transmitter, capable of reading instrument range, diagnosis, and secondary variables through a handheld device
Protection and isolation
short circuit protection
Each channel is equipped with a built-in PTC thermistor, which can withstand up to 30VDC input errors without burning out the module; Channel to ground/24V short circuit automatic current limiting protection
isolation level
On site signal side ↔ Backplane bus: group isolation, withstand voltage 500V AC
Circuit diagnosis
Automatically detect 4-20mA circuit disconnection and over range, upload the fault to the controller and light up the channel indicator light

ABB AI801 3BSE020512R1 | Analog Input Module |