Digi RCM4000 - Manual (Page 62)

56 RabbitCore RCM4000
Reads the state of an analog input channel and uses the previously set calibration constants to convert it
to current.
PARAMETERS
channel is the channel number (0–7):
RETURN VALUE
A current value between 4.00 and 20.00 mA corresponding to the current on the analog input channel.
ADOVERFLOW (defined macro = -4096) if overflow or out of range.
ADTIMEOUT (defined macro = -4095) if conversion is incomplete or busy-bit timeout.
SEE ALSO
anaInCalib, anaIn, anaInVolts
float anaInmAmps(unsigned int channel);
Channel Code
4–20 mA
Input Lines
*
* Negative input is ground.
0 +AIN0
1 +AIN1
2 +AIN2
3 +AIN3
†
† Applies to Prototyping Board.
4 +AIN4*
5 +AIN5*
6 +AIN6*
7 +AIN7