Wiring The Analog Input - Infinite AERINOS ADS-270 User Manual

3.6 Wiring the analog input

ADS-270 incorporates 1 analog input with 12 bit resolution. The Analog input is
scanned according to the selected message transmission period (see 4.5.2).
For current measurements, an external 47R/0.25W resistor can be applied between
the input terminals (J4-3 and J5-5) on AI1.
ADU-270 incorporates two excitation outputs (12V, 5V) to supply external
transducers. The excitation output switches ON/OFF according to the selected
message transmission period (see 4.5.2).
Low power transducers are recommended for preserving longer battery lifetime.
The unit performs 100 consecutive readings of the analog input for every sample,
thereby neglecting the maximum and minimum values and calculates the average of
the remaining 98 values.
3.6.1 0-1V Transducers
Scale settings: 0..1V → Raw scale:0..4095
3.6.2 Two Wire 0-20/4-20mA transducers
Scale settings: 0..20mA, Raw scale:0..3846
ADS-270 User Guide 9