ICP DAS USA PCI-82x Series, User Manual

Page: 77 / 82

PCI-82x Series Cards
Multifunction Boards
User Manual, Ver. 1.5, Jan. 2017, PMH-024-15, Page: 77
fSamplingRate
[Input] Sets the total sampling rate in Hz
dwDataCountPerChannel
[Input] The A/D data values for every Analog Input channels

Returns:
Refer to Appendix A1-1 Error Code Definitions .

Example:
wChannels = 3 //Scan 3 channels
wChannelList[0] = 2 //The first channel to be scanned is AI Channel 2
wChannelList[1] = 5 //The second channel to be scanned is AI Channel 5
wChannelList[2] = 3 //The third channel to be scanned is AI Channel 3
wConfigList[0] = 2 //The input range for the first channel is +/- 2.5 V
wConfigList[1] = 0 //The input range for the second channel is +/- 10 V
wConfigList[2] = 1 //The input range for the third channel is +/- 5 V
fSamplingRate = 30000 //The total sampling rate =30 kHz,
//Therefore, each channel is (fSamplingRate/wChannels) Hz

30 kHz/3 = 10 kHz
dwDataCountPerChannel = 5
Refer to the following table for details of where the data is stored in the driver buffer:
0 CH2 Val0
1 CH5 Val0
2 CH3 Val0
3 CH2 Val1
4 CH5 Val1
5 CH3 Val1
CH2
CH3 CH5 CH2
CH3 CH5