Omega OMB-DAQ-54 User Manual page 142

daqAdcSetAcq(DaqHandleT handle, daqAdcAcqMode mode, DWORD preTrigCount, DWORD
DLL Function
postTrigCount);
C daqAdcSetAcq(DaqHandleT handle, DaqAdcAcqMode mode, DWORD preTrigCount, DWORD
postTrigCount);
Visual BASIC VBdaqAdcSetAcq&(ByVal handle&, ByVal mode&, ByVal preTrigCount&, ByVal
postTrigCount&)
daqAdcSetAcq(handle:DaqHandleT; mode:daqAdcAcqMode; preTrigCount:DWORD;
Delphi
postTrigCount:DWORD)
Parameters handle
mode
PreTrigCount
PostTrigCount
Returns DerrNoError
daqAdcArm, daqAdcDisarm, daqAdcSetTrig
See Also
ADCEX1.C, DACEX1.C, DYN32ENH.C, DAQEX.FRM (VB), ADCEX.PAS (Delphi)
Program References
Used With All devices
Description
daqAdcSetAcq allows you to characterize the acquisition mode and the pre- and post-trigger durations. The mode parameter describes
the style of data collection. The preTrigCount and postTrigCount parameters specify the respective durations, or lengths, of the
pre-trigger and post-trigger acquisition states.
Acquisition modes can be defined as follows:
•
DaamNShot - Once triggered, continue acquisition until the specified post-trigger count has been satisfied. Once the post-trigger
count has been satisfied, the acquisition will be automatically disarmed.
•
DaamInfinitePost - Once triggered, continue the acquisition indefinitely until the acquisition is disabled by the daqAdcDisarm
function.
•
DaamPrePost - Begin collecting the specified number of pre-trigger scans immediately upon issuance of the daqAdcArm function.
The trigger will not be enabled until the specified number of pre-trigger scans have been collected. Once triggered, the acquisition
will then continue collecting post-trigger data until the post-trigger count has been satisfied. Once the post-trigger count has been
satisfied, the acquisition will be automatically disarmed.
Personal Daq User's Manual
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daqAdcSetAcq
Handle to the device for which the ADC acquisition is to be configured
Selects the mode of the acquisition
Number of pre-trigger ADC scans to be collected
Number of post-trigger ADC scans to be collected
No error
Appendix B,
887095
API Commands B-9