Z-World eDisplay OP7200, Руководство пользователя

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50 eDisplay (OP7200)
4.4.5 A/D Converter Inputs (OP7200 only)
Reads the state of an analog input channel.
PARAMETERS
channel is the analog input channel number (0 to 7) corresponding to AIN0–AIN7
opmode
is the mode of operation:
SINGLE —single-ended input line
DIFF —differential input line
gaincode is the gain code of 0 to 7:
RETURN VALUE
A value corresponding to the voltage on the analog input channel, which will be:
0–2047 for 11-bit A/D conversions (signed 12th bit)
SEE ALSO
anaInVolts, anaInCalib, brdInit
int anaIn(int channel, int opmode, int gaincode);
channel SINGLE DIFF
0 +AIN0 +AIN0 -AIN1
1 +AIN1 —
2 +AIN2 +AIN2 -AIN3
3 +AIN3 —
4 +AIN4 +AIN4 -AIN5
5 +AIN5 —
6 +AIN6 +AIN6 -AIN7
7 +AIN7 —
Gain Code Multiplier
Voltage
Range
0 ×1 0–20 V
1 ×2 0–10 V
2 ×4 0–5 V
3 ×5 0–4 V
4 ×8 0–2.5 V
5 ×10 0–2 V
6 ×16 0–1.25 V
7 ×20 0–1 V