Measurement Computing WaveBook rev.3.0 - Manual (Page 203)

WaveBook User’s Manual, 6-24-99 daqX API - Command Reference D-7
daqAdcRdScan
DLL Function daqAdcRdScan(DaqHandleT handle, DWORD startChan, DWORD endChan, PWORD buf,
DaqAdcGain gain, DWORD flags);
C daqAdcRdScan(DaqHandleT handle, DWORD startChan, DWORD endChan, PWORD buf,
DaqAdcGain gain, DWORD flags);
Visual BASIC VBdaqAdcRdScanN&(ByVal handle&, ByVal startChan&, ByVal endChan&, buf%(), ByVal
scanCount&, ByVal triggerSource&, ByVal rising&, ByVal level%, ByVal freq!, ByVal
gain&, ByVal flags&)
Delphi daqAdcRdScanN(handle:DaqHandleT; startChan:DWORD; endChan:DWORD; buf:PWORD;
scanCount:DWORD; triggerSource:DaqAdcTriggerSource; rising:longbool; level:WORD;
freq:single; const gain:DaqAdcGain; flags:DWORD)
handle Handle to the device from which the ADC scan is to be acquired
startChan The starting channel of the scan group
endChan The ending channel of the scan group
buf An array where the A/D scans will be placed
gain The channel gain
Parameters
flags Channel configuration flags in the form of a bit mask.
DerrInvGain Invalid gain
DerrInvChan Invalid channel
Returns
DerrNoError No error (see the API Error Codes table at the end of this chapter).
See Also daqAdcRdNScan, daqAdcSetMux, daqAdcSetClock, daqAdcSetTrig
Program References DACEX.PAS (Delphi)
Used With All devices
Description
daqAdcRdScan
reads a single sample from multiple channels. This function will use a software trigger to immediately trigger and acquire
1 scan consisting of each channel, starting with startChan and ending with endChan. The gain setting will be applied to all channels.
See ADC Flags Definition table for channel flags definitions.