Set the optimum input/output range according to the output signal type (voltage, current) and the upper/lower limit of the signal.
For example, if the range is -10 to 10V with a 12-bit resolution device, the minimum unit of input is 20/4096, which is about 5 mV. If the range is -5 to 5V, the minimum unit is about 2.5 mV, which means that you can input with double precision. Therefore, when the range of the used signal is within -5 to 5V, it is better to set the range to -5 to 5V.
The output range setting depends on the devices.
1. Set by JUMPER on devices
2. Set by software
3. Set by JUMPER on device and software
Please refer to [Specifications based on devices] in function AioSetAoRange, AioSetAoRangeAll for setting the output range of your device.
When setting the range individually for each channel, use function AioSetAoRange.
When setting the range for all channels at the same time, use function AioSetAoRangeAll.