Measurement Computing Data Acquisition Systems rev.10.4 - Manual (Page 75)

Returns
DerrInvGain Invalid gain
DerrInvChan Invalid channel
DerrInvTrigSource Invalid trigger
DerrInvLevel Invalid level
DerrFIFOFull Buffer overrun
DerrNoError No error
For more details on error messages, please refer to the Daq Error Table.
Function Usage
This function will configure the pacer clock, arm the trigger and acquire count scans consisting of each
channel, starting with startChan and ending with endChan. The gain and flags settings will be applied
to all channels.
The freq parameter is used to set the acquisition frequency. Its valid values can range from 0.2 mHz to 1.0
MHz, but they are dependent on the device being used--see the discussion of actual scan rates in the entry for
daqAdcSetRate
.
Prototypes
C/C++
daqAdcRdScanN(DaqHandleT handle, DWORD startChan, DWORD endChan, PWORD
buf, DWORD scanCount, DaqAdcTriggerSource triggerSource, BOOL rising, WORD
level, FLOAT freq, 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&)
Program References
None
Programmer’s Manual 908594 Daq API Command Reference 4.2-19