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daqAdcTransferGetStat
Also See: daqAdcTransferSetBuffer,
daqAdcTransferStart,
daqAdcTransferStop, daqAdcSetDiskFile
Format
daqAdcTransferGetStat(handle, active, retCount)
Purpose
daqAdcTransferGetStat retrieves the current state of an acquisition transfer, and can be used to initiate
transfers to the disk.
Parameter Summary
Parameter Type Description
handle DaqHandleT
Handle to the device from which ADC transfer status is to be retrieved
active PDWORD
A pointer to the transfer-state flags in the form of a bit mask
retCount PDWORD
A pointer to the total number of ADC scans acquired (or available) in
the current transfer
Parameter Values
handle: obtained from the daqOpen function
active: a valid pointer to a double word variable (4 bytes) in which the acqusition and transfer status flags
will be stored upon return of this function; see table below for flag values
retCount: a valid pointer to a long integer variable (4 bytes) in which the total number of scans transferred
will be stored (0 to scanCount) upon return of this function
Parameter Type Definitions
active
Definition Description
DaafAcqActive
An acquisition is active; the trigger may or may not yet have occurred but the acquisition
has at least been armed
DaafAcqTriggered
The acquisition has been triggered, and post-trigger data is now being collected
DaafTransferActive
A buffer transfer is active; an acquisition may or may not be active but a buffer transfer
has been enabled
Returns
DerrNoError No error
Function Usage
Data Transfer Progress
The value that the retCount parameter returns depends upon the buffer management mode selected
(see daqAdcTransferSetBuffer function for more information on buffer allocation modes):
User Buffer Mode (DatmUserBuf) – The retCount parameter will return the total amount of data
written (in scans) to the user allocated buffer(s) during the duration of the acquisition. The following
diagram illustrates how retCount is determined:
Programmer’s Manual 908594 Daq API Command Reference 4.2-59
- *372195A-01* 1
- How to use this Manual 3
- 908494 Programmer’s Manual 4
- Table of Contents 5
- Introduction 1 7
- Language Support 8
- Driver Installation 9
- 908494 Programmer’s Manual 10
- Data Acquisition Environment 11
- Signal Environment 12
- 988594 Programmer’s Manual 14
- For x% = 0 To 3 30
- 0, 0, x%, bitVal&) 30
- Next x% 30
- Zero Compensation 33
- Linear Conversion 35
- End Sub 36
- Using Multiple Devices 3 37
- Internal Clock Method 40
- Master Clock Method 41
- External Clock Method 43
- Overview 45
- 938395 Programmer’s Manual 46
- Mask and Flag Definitions 50
- 961 962 963 ... 999 59
- 941 942 ... 958 959 960 59
- Raw Data Formats 81
- Setting the Scan Rate 89
- Scan Rate Mode 89
- Scan Rate State 90
- Actual Scan Rate 90
- 94
- DBK16-Read Offset Trimpot 95
- DBK43-Read Offset Trimpot 96
- Typical flags Settings 100
- Settings 101
- Prototypes 102
- Program References 102
- Function Usage 104
- Visual BASIC 105
- Returns 114
- Data Transfer Progress 115
- Example Acquisition States 116
- DazcNone 124
- DazcAutoZero 124
- Parameter Type Description 129
- Definition Description 129
- Purpose 131
- Offset value to apply 142
- Parameter Values 144
- parameters 148
- Parameter Summary 150
- Parameter Type Definitions 150
- Moving Averages 160
- Definition Description 165
- Using Thermocouples (T/Cs) 172
- T/C Gains Settings 173
- Daq/2000 Series devices* 174
- Setting the Output Mode 184
- Buffer Management 201
- DAC0 DAC1 DAC2 DAC3 P3 DO 202
- DAC0 DAC2 P3 DO 202
- Note 1: 206
- Offset for header in bytes 208
- Update Cycle Data Blocks 211
- Update/Sample Data Format 212
- Output From File Operation 212
- DaqBoard/2000c Series 219
- Setting the DAC Value 227
- 908794 Programmer’s Manual 232
- (continued) 249
- DdiProtocolInfo 251
- DdiExtFeatures 251
- Local I/O 262
- Expansion I/O 262
- Local I/O 266
- 957193 Programmer’s Manual 280
- (for 14 sample settings 282
- 2, 4, 8, 16, 32, 64 282
- 128, etc. up to 16384) 282
- Option Value (optionValue) 284
- Counter Mode 285
- 908594 Programmer’s Manual 286
- Set the Excitation Source 289
- DmotWbk14ExcSrcApply 289
- Sets the Dac Offset 290
- Use DC coupling when 290
- Example: 291
- DcovWbk17Mode_Period 295
- DcovWbk17Mode_Pulsewidth 296
- DcovWbk17Mode_Timing 296
- DcovWbk17Mode_Encoder 296
- Setting the Trigger Level 306
- API Error Codes - daqError 319
- A2 - 162 331
- Programmer’s Manual 332
- Appendix A A 333
- 988294 Programmer’s Manual 334
- 939198 Programmer’s Manual 336
- Custom OEM Installation C 337
- WIN 9x/Me WIN NT/2000/XP 338
- WIN 9x/Me and 338
- WIN NT/2000/XP 338
- Installation Locations: 339
- 958293 Programmer’s Manual 340
- 938295 Programmer’s Manual 342
- Format 347
- Time-of-Day Configuration 356
- Glossary 359
- 986896 Programmer’s Manual 360
- 986896 Glossary G-3 361
- 986896 Glossary G-5 363
- 986896 Glossary G-7 365
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