National-instruments Data Acquisition Device NI USB-621x Manual de usuario descargar pdf (Pagina 147)

Appendix A Device-Specific Information

NI USB-621x User Manual A-8 ni.com

USB-6212/6216 Mass Termination

USB-6212/6216 Mass Termination Pinout

Figure A-4 shows the pinout of the USB-6212 Mass Termination and

USB-6216 Mass Termination.

For a detailed description of each signal, refer to the I/O Connector Signal

Descriptions section of Chapter 3, Connector and LED Information.

1 2 ... 142 143 144 145 146 147 148 149 150 151 152 ... 184 185

DAQ M Series 1
Important Information 3
Compliance 4
Chapter 4 6
Chapter 5 7
Contents 10
About This Manual 12
Related Documentation 13
LabWindows/CVI 15
Measurement Studio 15
Training Courses 17
Technical Support on the Web 17
Getting Started 18
Device Specifications 19
USB Cable Strain Relief 20
Mounting the USB-621x 21
Panel Mounting 22
Chapter 1 Getting Started 23
DAQ System Overview 24
DAQ-STC2 25
Calibration Circuitry 25
Signal Conditioning 26
Cables and Accessories 27
Chapter 2 DAQ System Overview 28
Connector and LED Information 29
+5 V Power 31
USB Device Fuse Replacement 31
0.75A,125V Fuse, Socketed 32
PWR/ACT LED Indicator 33
Analog Input 34
Analog Input Range 35
Chapter 4 Analog Input 36
Figure 4-2. NI-PGIA 37
NI-DAQmx Create 38
Virtual Channel.vi 38
Field Wiring Considerations 43
Analog Input Timing Signals 44
AI Sample Clock Signal 47
Using an Internal Source 47
Using an External Source 47
Other Timing Requirements 47
AI Convert Clock Signal 49
AI Hold Complete Event Signal 52
AI Start Trigger Signal 53
Using a Digital Source 53
Reference Trigger 54
Pretrigger Samples 54
Complete Buffer 54
Posttrigger Samples 54
AI Pause Trigger Signal 55
USB-6210/6211/6212 Devices 56
(NRSE Configuration) 68
AO Range 73
Chapter 5 Analog Output 74
Analog Output Timing Signals 75
AO Start Trigger Signal 76
AO Pause Trigger Signal 77
Pause Trigger 78
Sample Clock 78
Digital I/O 81
Chapter 6 Digital I/O 82
Chapter 7 PFI 89
Connecting PFI Input Signals 91
PFI Filters 91
Figure 7-4. Filter Example 92
Table 7-1. Filters 92
I/O Protection 93
Programmable Power-Up States 93
Counters 94
Counter Input Applications 95
Pulse-Width Measurement 97
Period Measurement 99
Single Period Measurement 99
Buffered Period Measurement 100
Semi-Period Measurement 101
Frequency Measurement 102
Figure 8-10. Method 1 103
Figure 8-11. Method 1b 104
Figure 8-12. Method 2 105
Figure 8-13. Method 3 106
Chapter 8 Counters 107
Position Measurement 108
Channel Z Behavior 109
Counter Output Applications 113
Pulse Train Generation 115
Frequency Generation 116
Using the Frequency Generator 116
Frequency Division 117
Pulse Generation for ETS 117
Counter Timing Signals 118
Counter n Source Signal 119
Counter n Gate Signal 120
Counter n Aux Signal 120
Counter n Up_Down Signal 121
Counter n HW Arm Signal 121
Default Counter/Timer Pinouts 123
Counter Triggering 124
Other Counter Features 125
Cascading Counters 126
Counter Filters 126
Prescaling 127
Duplicate Count Prevention 128
Duplicate Counting) 128
(Duplicate Counting) 129
USB-6215/6216/6218 Devices 131
Digital Isolation 132
Reducing Common-Mode Noise 133
Isolated Systems 134
Non-Isolated Systems 134
80 MHz Timebase 135
20 MHz Timebase 135
100 kHz Timebase 135
Bus Interface 136
Chapter 11 Bus Interface 137
Triggering 138
Chapter 12 Triggering 139
Device-Specific Information 140
USB-6210 141
USB-6211/6215 143
USB-6212/6216 Screw Terminal 145
USB-6216 Mass Termination 147
TERMINAL 1 148
TERMINAL 34 148
TERMINAL 35 148
TERMINAL 68 148
NC = No Connect 148
SCC Accessories 149
BNC Accessories 150
Screw Terminal Accessories 150
USB-6218 152
Troubleshooting 154
Channel 0 155
Channel 1 155
Convert Period 155
Sample Period 155
Analog Output 156
Technical Support and 157
Professional Services 157
Glossary 159
Numerics 175

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