National Instruments Network Device DAQ S manuály

Uživatelské manuály a uživatelské příručky pro Softwarové příručky National Instruments Network Device DAQ S.
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Tabulka s obsahem

DAQ S Series

1

Important Information

3

Compliance

4

Chapter 5

6

Chapter 6

7

Chapter 7

7

Counters

7

Chapter 8

9

Chapter 9

9

Contents

10

About This Manual

11

Related Documentation

12

LabWindows/CVI

13

Measurement Studio

13

Training Courses

15

Technical Support on the Web

15

Getting Started

16

Installing the Hardware

17

Device Self-Calibration

17

Device Pinouts

18

Device Specifications

18

DAQ System Overview

19

DAQ Hardware

20

DAQ-STC2

21

Calibration Circuitry

22

Signal Conditioning

23

Sensors and Transducers

23

NI-DAQ\Examples\

24

DAQmx ANSI C Dev

24

I/O Connector

25

Specifications

26

+5 V Power Source

27

Analog Input

28

(NI 6154 Only) The digital

29

Input Polarity and Range

30

Working Voltage Range

31

AI Data Acquisition Methods

31

Chapter 4 Analog Input

32

Analog Input Triggering

33

Types of Signal Sources

34

Non-Isolated Devices

36

DC-Coupled

37

AC-Coupled

38

Field Wiring Considerations

38

Analog Input Timing Signals

40

AI Sample Clock Signal

41

Using an Internal Source

41

Using an External Source

42

Terminal

42

Other Timing Requirements

42

AI Convert Clock Signal

43

AI Hold Complete Event Signal

45

AI Start Trigger Signal

45

Using a Digital Source

45

Using an Analog Source

46

AI Reference Trigger Signal

46

Analog Output

49

AO Data Generation Methods

50

Chapter 5 Analog Output

51

Analog Output Triggering

52

AO Sample Clock Signal

54

AO Start Trigger Signal

57

AO Pause Trigger Signal

58

Digital I/O

60

Chapter 6 Digital I/O

61

DI Sample Clock Signal

63

DO Sample Clock Signal

64

Counter Input Applications

74

Chapter 7 Counters

75

Pulse-Width Measurement

76

Period Measurement

78

Single Period Measurement

78

Buffered Period Measurement

79

Semi-Period Measurement

79

Frequency Measurement

81

Figure 7-11. Method 1b

82

Figure 7-12. Method 2

83

Figure 7-13. Method 3

84

Position Measurement

86

Channel Z Behavior

87

8 9 0 2 1 7 4 3

88

Counter Output Applications

91

Pulse Train Generation

93

Finite Pulse Train Generation

94

Frequency Generation

95

Using the Frequency Generator

95

Frequency Division

96

Pulse Generation for ETS

96

Counter Timing Signals

97

Counter n Source Signal

98

Counter n Gate Signal

99

Counter n Aux Signal

100

Counter n Up_Down Signal

101

Counter n HW Arm Signal

101

Default Counter/Timer Pinouts

102

Counter Triggering

103

Other Counter Features

104

Prescaling

105

Duplicate Count Prevention

106

(No Duplicate Counting)

107

(Duplicate Counting)

108

Synchronization Modes

109

80 MHz Source Mode

110

Other Internal Source Mode

111

External Source Mode

111

Programmable Function

112

Interfaces (PFI)

112

PFI for Isolated Devices

113

Connecting PFI Input Signals

117

PFI Filters

117

Figure 8-5. Filter Example

118

Table 8-1. Filters

118

I/O Protection

119

Programmable Power-Up States

119

Digital Routing and Clock

121

Generation

121

80 MHz Timebase

122

20 MHz Timebase

122

100 kHz Timebase

122

External Reference Clock

122

10 MHz Reference Clock

123

RTSI Connector Pinout

124

Using RTSI as Outputs

125

RTSI Filters

126

Figure 9-3. Filter Example

127

Table 9-2. Filters

127

PXI Clock and Trigger Signals

128

PXI_STAR Filters

129

Routing Signals in Software

130

Bus Interface

131

Data Transfer Methods

132

Triggering

133

Digital Trigger

134

Analog Trigger Types

135

Analog Comparison Event

136

Chapter 11 Triggering

137

Analog Trigger Accuracy

138

Device-Specific Information

139

NI 6124 I/O Connector Pinout

140

NI 6124 Block Diagram

142

Using BNCs

143

Using Screw Terminals

143

NI 6124 Specifications

144

NI 6154 Analog Output

145

NI 6154 I/O Connector Pinout

146

NI 6154 Block Diagram

148

Table A-3. Ground Symbols

149

Digital Isolation

150

NI 6154 Specifications

151

Technical Support and

152

Professional Services

152

Glossary

154

Numerics

165





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