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Chapter 2 Lab and 1200 Devices
©
National Instruments Corporation 2-5 DAQ Hardware Overview Guide
interrupt on every sample and interrupt on half-FIFO. When using external conversions,
you should select the mode appropriate for the acquisition rate. See the
Set_DAQ_Device_Info function in the NI-DAQ Function Reference Online Help or the
Set_DAQ_Device_Info.vi in the LabVIEW DAQ Online Reference to set the interrupt
generation mode.
Lab and 1200 Devices Data Acquisition Rates
Table 2-2 shows the maximum recommended data acquisition rates and the
recommended values for settling time versus gain. The required settling
time depends on the gain setting used for each channel. This settling time
also limits data acquisition rates.
The settling accuracy is always ±0.5 LSB.
If you are using SCXI, refer to the SCXI Data Acquisition Rates section in
Chapter 3, Software Overview, of the NI-DAQ User Manual for PC
Compatibles for the effect of SCXI module settling time on your DAQ
device rates.
Lab and 1200 Devices Analog Output
The Lab and 1200 devices contain two analog output channels numbered 0
and 1. Each analog output channel contains a 12-bit DAC. The DACs are
double buffered, which facilitates accurate waveform generation via the
delayed update mode. On the Lab-PC+, you can hardware jumper
configure each analog output channel for unipolar or bipolar voltage
output. On all other Lab and 1200 devices, you can software configure each
analog output channel. An onboard voltage reference of +5 V is provided
for the analog output channels.
Table 2-2.
Typical Settling Accuracies for Maximum Multiple-Channel Scanning
Rates for the Lab and 1200 Devices
Gain
Maximum Acquisition Rate
*
(kS/s)
Settling
Time (µs)
1 83.3 12
2, 5, 10, 20, 50 62.5 16
100 20 50
* If you are using remote SCXI, the maximum acquisition rate depends on baud rate and
will most likely be much slower than the rates listed here.
- DAQ Hardware Overview 1
- Important Information 3
- Chapter 14 7
- SCXI Hardware 7
- Glossary 10
- Contents 11
- About This Guide 12
- MIO and AI Device Terminology 15
- Table 1 16
- Related Documentation 17
- MIO and AI Devices 18
- Chapter 1 MIO and AI Devices 19
- E Series Data Acquisition 20
- Set_DAQ_Device_Info 22
- MIO Device Analog Output 24
- E Series Digital I/O 26
- E Series PFI Pins 27
- Lab and 1200 Devices 28
- AI_Trigger_Config.vi 31
- DAQ_StopTrigger_Config 31
- Table 2-2 32
- Lab and 1200 Devices Groups 33
- Figure 2-1 34
- 1200 Device Acquisition Rate 35
- 1200 Device Calibration 36
- LPM Devices 37
- DAQ_Config 38
- LPM Device Digital I/O 39
- LPM Device Counter/Timers 40
- 516 Devices and 41
- DAQCard-500/700 Devices 41
- DAQ_Config. If you do 43
- Counter/Timer Operation 44
- Figure 4-2 45
- AT-AO-6/10 Analog 46
- Output Devices 46
- AT-AO-6/10 Digital I/O 48
- 6703/6704 Devices 49
- PC-TIO-10 Timing I/O Device 50
- PC-TIO-10 Counter/Timers 54
- PC-TIO-10 Digital I/O 55
- DIO-96 Digital I/O Devices 56
- DIO-96 Groups 57
- DIO-24 (6503) 58
- AT-MIO-16DE-10, and 6025E 58
- DIO-32F and 6533 60
- Digital I/O Devices 60
- Digital_Buffer_Write.vi) 62
- AMUX-64T External 63
- Multiplexer Accessory 63
- Table 11-2 64
- AMUX-64T Channel Numbers 64
- SCAN_Setup or 65
- MIO_Config 67
- Accessories 68
- SC-2042-RTD Accessory 69
- SC-2043-SG Accessory 69
- SCC Series Modules 70
- SCC-CI20 Current Input Module 72
- SCC-LP Lowpass Filter Modules 73
- SCC Configuration 74
- SCXI Operating Modes 76
- Chapter 14 SCXI Hardware 77
- SCXI Data Acquisition Device 80
- SCXI-1200 80
- SCXI Analog Input Modules 81
- SCXI-1100 81
- SCXI-1101 82
- SCXI-1104/C 83
- SCXI-1112 83
- SCXI_Scale function to 84
- SCXI_Single_Chan_Setup 84
- SCXI-1125 85
- SCXI-1122 85
- SCXI-1126 86
- SCXI-1127 87
- SCXI-1140 87
- SCXI Analog Output Module 89
- SCXI-1124 89
- SCXI Digital Modules 90
- SCXI-1160 and SCXI-1161 90
- SCXI-1162 and SCXI-1162HV 91
- SCXI-1163 and SCXI-1163R 91
- SCXI-1530, SCXI-1531 92
- SCXI-1540 92
- SCXI_Track_Hold_Setup 94
- DIO-24 and the DIO-96 96
- DIO-32F and 6533 Device 97
- VXI-DAQ Devices 99
- AO_Change_Parameter or the 100
- Multifunction VXIbus Devices 101
- VXI-DAQ Signal Conditioning 102
- VXI-SC-1102 Submodule 103
- VXI-SC-1150 Submodule 103
- PXI DAQ Devices 104
- PXI DAQ Signal Conditioning 105
- NI 5411 Devices 106
- Chapter 17 NI 5411 Devices 107
- DDS Mode 108
- Table 17-2 110
- NI 5411 Operational Modes 110
- Device Analog Input 112
- Data Acquisition 113
- Acquisition Timing 114
- Current Source 115
- Digital I/O 115
- Device Input 116
- Chapter 19 NI 40XX Devices 118
- DSA Devices 119
- and NI 455 120
- Analog Input Channels 120
- Data Acquisition Timing 121
- Channels 122
- Digital I/O 123
- Counter/Timer Operation 124
- Devices 125
- Chapter 21 671X Devices 126
- Technical Support Resources 129
- Worldwide Support 130
- Numbers/Symbols 131
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