Measurement Computing TempBook rev.3.0 - Manual (Page 132)

11-8 daqCommand Reference (Enhanced API) TempBook User’s Manual
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)
Parameters
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
flags Channel configuration flags in the form of a bit mask.
Returns DerrInvGain - Invalid gain
DerrInvChan -Invalid channel
DerrNoError - No error (also, refer to API Error Codes on page 11-39)
See Also daqAdcRdNScan, daqAdcSetMux, daqAdcSetClock, daqAdcSetTrig
Program References DACEX.PAS (Delphi)
Used With All devices
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.