Measurement-computing Data Acquisition Systems rev.10.4 Manual de usuario Pagina 92
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daqAdcSetScan
Also See: daqAdcGetScan, daqAdcSetMux
Format
daqAdcSetScan(handle, channels, gains, flags, chanCount)
Purpose
daqAdcSetScan configures an acquisition scan group consisting of multiple channels.
Parameter Summary
Parameter Type Description
handle DaqHandleT
Handle to the device for which acquisition scan group will be
configured
channels PDWORD
An array of channel numbers
gains DaqAdcGain
Pointer to an array of gain values
flags PDWORD
Pointer to an array of channel configuration flags in bit mask form.
chanCount DWORD
The number of elements in the channels, gains and flags arrays
Parameter Values
handle: obtained from the daqOpen function
channels: must be a valid pointer to an array of valid channel numbers for the device; valid values for
channel numbers vary per device. See the parameter type definitions table below. Consult
your hardware manual if needed.
gains: see table below
flags: see table below
chanCount: valid values vary in range, according to product type.
Parameter Type Definitions
flags
Definition Description Valid Channel Values
Analog/High Speed Digital Flag
DafAnalog
Channel is Analog on P1 Analog P1 Channels (0-271)
DafHighSpeedDigital
Channel is HS Digital I/O on P3 Digital P3 HS Chan (0)
Data Representation Flags (DaqBook/2000 Series; 1000, 2000, 3000 Series DaqBoards; DaqLab/2000 Series,
DaqScan/2000 Series and cPCI DaqBoard/2000c Series)
DafUnsigned
Channel ADC data is represented as a 16-bit unsigned
integer.
Any channel
DafSigned
Channel ADC data is represented as a 16-bit signed integer. Any channel
Unipolar/Bipolar Flag (DaqBook/2000 Series; 1000, 2000, 3000 Series DaqBoards; DaqLab/2000 Series,
DaqScan/2000 Series and cPCI DaqBoard/2000c Series)
DafUnipolar
Channel voltage range is from 0 to +2x(Device
Max/Gain)V
Analog P1 Channels (0-271)
DafBipolar
Channel voltage range is -(Device Max/Gain)V to
+(Device Max/Gain)V
Analog P1 Channels (0-271)
Single Ended/Differential Flag
DafSingleEnded
Channel is single ended inputs Analog P1 (0-271)
DafDifferential
Channel is differential inputs Analog P1 (0-7) (Main unit only)
P2 Digital Channel Flags (DaqBook/2000 Series; 1000, 2000, 3000 Series DaqBoards; DaqLab/2000 Series,
DaqScan/2000 Series and cPCI DaqBoard/2000c Series)
DafP2Local8
Channel is Digital on the Local P2 Local Digital P2 Channels (0-4)
DafP2Exp8
Channel is Digital on an Expansion P2 N/A
P3 Digital Channel Flags (DaqBook/2000 Series, DaqBoard/2000 Series, DaqLab/2000 Series, DaqScan/2000 Series
and cPCI DaqBoard/2000c Series)
DafP3Local16
Channel is HS Digital I/O P3 Digital 16-bit P3 Channel (0)
Counter Type Flags (DaqBook/2000 Series; 1000, 2000, 3000 Series DaqBoards; DaqLab/2000 Series,
DaqScan/2000 Series and cPCI DaqBoard/2000c Series)
DafCtrPulse
P3 Counter Channel will Tally Pulses Counter Channels (0-3)
DafCtrTotalize
P3 Counter Channel will Return Frequency Counter Channels (0-3)
Counter Edge Flags
DafCtrRisingEdge
P3 Counter Channel will Count on Rising Edge Counter Channels (0-3)
DafCtrFallingEdge
P3 Counter Channel will Count on Falling Edge Counter Channels (0-3)
4.2-36 Daq API Command Reference 988594 Programmer’s Manual
- *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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