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SCXI -1124
National Instruments SCXI -1124 Manuals
Manuals and User Guides for National Instruments SCXI -1124. We have
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National Instruments SCXI -1124 manual available for free PDF download: User Manual
National Instruments SCXI -1124 User Manual (54 pages)
Six-Channel Isolated Digital-to-Analog Converter Module
Brand:
National Instruments
| Category:
Media Converter
| Size: 0.45 MB
Table of Contents
User Manual
1
Table of Contents
5
About this Manual
7
Organization of this Manual
7
Conventions Used in this Manual
8
The National Instruments Documentation Set
9
Related Documentation
9
Customer Communication
10
Chapter 1 Introduction
11
What Your Kit Should Contain
11
Software Programming Choices
11
Labview and Labwindows Application Software
11
NI-DAQ Driver Software
12
Register-Level Programming
13
Figure 1-1. the Relationship between the Programming Environment, NI-DAQ, and Your Hardware
13
Optional Equipment
14
Custom Cables
15
Unpacking
15
Chapter 2 Configuration and Installation
16
Module Configuration
16
Figure 2-1. SCXI-1124 Parts Locator Diagram
16
Table 2-1. Module Configuration of Your Chassis System
17
Table 2-2. Module Configuration of Your DAQ Board
17
Supplementary Jumper Configuration Information
18
Hardware Installation
18
Chapter 3 Signal Connections
20
Front Connector
22
Figure 3-1. SCXI-1124 Front Connector Pin Assignments
22
Front Connector Signal Descriptions
23
Analog Output Channel Signal Connections
23
Figure 3-2. DAC Channel Connection as Voltage Output
24
Figure 3-3. DAC Channel Connection as Current Output, Internal Loop Supply
24
Figure 3-4. DAC Channel Connection as Current Output, External Loop Supply
25
Chassis Ground Connections
26
Rear Signal Connector
26
Figure 3-5. Current Loop Connection, Load and External Supply both Grounded
26
Rear Signal Connector Signal Descriptions
27
Figure 3-6. SCXI-1124 Rear Signal Connector Pin Assignments
27
Digital I/O Signal Connections
28
Table 3-1. Scxibus to SCXI-1124 Rear Signal Connector to DAQ Board
30
Theory of Operation
31
Functional Overview
31
Figure 4-1. SCXI-1124 Block Diagram
31
Chapter 4 Theory of Operation
31
Rear Signal Connector, Scxibus Connector, and Scxibus Interface
32
Digital Control Circuitry
32
Analog Output Circuitry
33
Voltage Output Circuitry
33
Table 4-1. Typical DAC Channel Ranges
33
Noise Reduction
34
Changing Ranges
35
Current Output
35
Figure 4-2. RC Filter
35
Figure 4-3. Loop Supply
36
Chapter 5 Calibration
37
Overview
37
Figure 5-1. SCXI-1124 Output Characteristics
37
Calibration Methods
38
Two-Point Calibration Method
38
Voltage Calibration Method
39
Figure 5-2. DAC Characteristics
39
Current Calibration Method
40
EEPROM Limits
40
Measurement Technique
41
Appendix A Specifications
42
Analog Outputs
42
Physical
43
Environment
43
Appendix B Customer Communication
44
Glossary
49
Index
51
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