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AT-MIO-16F-5
National Instruments AT-MIO-16F-5 Board Manuals
Manuals and User Guides for National Instruments AT-MIO-16F-5 Board. We have
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National Instruments AT-MIO-16F-5 Board manual available for free PDF download: User Manual
National Instruments AT-MIO-16F-5 User Manual (91 pages)
Analog Multiplexer with Temperature Sensor
Brand:
National Instruments
| Category:
Multiplexer
| Size: 1.96 MB
Table of Contents
Table of Contents
5
About this Manual
9
Organization of this Manual
9
Conventions Used in this Manual
10
National Instruments Documentation
11
Related Documentation
11
Customer Communication
12
Introduction
13
About the AMUX-64T
13
What You Need to Get Started
14
Unpacking
14
Software Programming Choices
14
Labview and Labwindows Application Software
15
NI-DAQ Driver Software
15
Figure 1-1. the Relationship between the Programming Environment, NI-DAQ, and Your Hardware
17
Register-Level Programming
18
Optional Equipment
19
Configuration and Installation
20
Board Configuration
20
Power, Temperature Sensor, and Shield Configuration
20
Figure 2-1. AMUX-64T Parts Locator Diagram
21
Table 2-1. Power Supply Selection
22
Table 2-2. Temperature Sensor Selection
22
Supplementary Configuration Information
23
Power Supply Selection
23
Table 2-3. Shield Selection
23
Temperature Sensor
24
Table 2-4. MIO Board Power Budget
24
Shield Selection
25
Single-Board and Multiple-Board Configurations
26
Figure 2-2. Daisy-Chaining Multiple AMUX-64T Boards
27
Single-Board Configuration
28
Two-Board Configuration
28
Four-Board Configuration
28
Installation
29
Power-On Sequence
30
Figure 2-3. Cable Positioning for the AMUX-64T
30
Signal Connections
31
I/O Connector
31
Figure 3-1. AMUX-64T Signal Routing
34
Differential Connections
35
Using the AMUX-64T for Thermocouple Measurements
35
Selecting the Gain and Input Ranges
35
Linearizing the Data
36
Differential Measurements
39
An Example of Using Thermocouples (Differential or Single-Ended)
39
Procedure 1
40
Procedure 2
41
Comments
41
Single-Ended Measurement
41
Using more than One AMUX-64T
42
Sources of Error
42
Thermocouple Measurement Accuracies
43
Other Connection Considerations
44
Signal Conditioning
45
Analog Input
45
Figure 4-1. Onboard Equivalent Circuit
46
Application Notes
48
Soldering and Desoldering on the AMUX-64T Board
48
Channel Configurations
49
Connecting Nonreferenced or Floating Signal Sources
49
Differential Inputs
49
Single-Ended Inputs
50
Figure 4-2. Bias Return Resistor for DC-Coupled Floating Source
50
Connecting Ground-Referenced Signal Sources
51
Differential Inputs
51
Single-Ended Inputs
51
Building Lowpass Filters
52
Figure 4-3. Normalized Frequency Response of Lowpass Filter
52
Building Highpass Filters
54
Figure 4-5. Normalized Frequency Response of Highpass Filter
54
Building Attenuators (Voltage Dividers)
56
Figure 4-7. Attenuator for Use with Differential Inputs
57
Theory of Operation and Register-Level Programming
59
Functional Overview
59
Figure 5-1. AMUX-64T Block Diagram
60
How to Address AMUX-64T Analog Input Channels
61
A/D Conversions on a Single AMUX-64T Analog Input Channel
61
Figure 5-2. Scanning Counter Control Bits
61
Figure 5-3. AMUX-64T Channel Address Mapping
64
Automatic Channel Scanning with the AMUX-64T
65
Figure 5-4. Two-Level Multiplexer Arrangement Showing Channel 9 Selected
65
Figure 5-5. Scanning Order for Different AMUX-64T Board Configurations
67
Scanning Order
68
Programming Channel Scanning with the AMUX-64T
69
Initialize the AMUX-64T Scanning Counter
69
Configure Counter 1 to Control the MIO Board Scanning Clock
70
Set the SCANDIV Bit in MIO Command Register 1
70
Customer Communication
75
Glossary
80
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