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AT-485/2
National Instruments AT-485/2 Manuals
Manuals and User Guides for National Instruments AT-485/2. We have
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National Instruments AT-485/2 manual available for free PDF download: Getting Started
National Instruments AT-485/2 Getting Started (67 pages)
Serial Hardware and Software for Windows NT
Brand:
National Instruments
| Category:
Network Hardware
| Size: 0.43 MB
Table of Contents
Table of Contents
7
Figure 2-1. Add/Remove Programs Properties Dialog Box
19
Figure 2-2. ni Serial Setup Screen
20
Figure 2-3. Inserting a PCMCIA Serial Card
21
Figure 2-4. at Serial Board Installation
23
Connect the Cables
25
Figure 2-5. DB-9 Connector Pin Locations
25
Table 2-1. DB-9 Pin Descriptions
26
Table 2-2. 10-Position Modular Jack Pin Descriptions
27
Table 2-3. DB-25 Pin Descriptions
28
Connecting Two-Wire Devices
29
Chapter 3 Configuration
30
Change/View Communication Port Settings
30
General Port Settings
31
COM Port Number
31
Transceiver Mode
32
FIFO Enabled
32
Resources
32
Resource Settings
32
Pcmcia-232, Pcmcia-485
32
Pcmcia-232/2, Pcmcia-485/2
33
AT Boards (Shared IRQ)
34
AT Boards (Non-Shared IRQ)
36
Chapter 4 Using Your Serial Hardware
37
Advanced Transceiver Control (AT-485/PCMCIA-485)
37
Table 4-1. Transceiver Control Modes
37
Four-Wire Mode
38
Two-Wire Mode: DTR Controlled
38
Two-Wire Mode: DTR with Echo
38
Two-Wire Mode: TXRDY Auto Control
38
Setting the Transceiver Control Mode
39
Setting the Transceiver Mode with Deviceiocontrol
39
Table 4-2. Transceiver Mode Control Bytes
39
General Programming Requirements
40
Setting the Maximum Baud Rate for a 16-Bit Application
40
Table 4-3. Deviceiocontrol Function Input Values
40
Other Programming Points
41
Appendix A Specifications
42
Hardware Specifications
42
Table A-1. Physical Characteristics of the Two-Port at Serial Boards
42
Table A-2. Physical Characteristics of the Two-Port Isolated at Serial Boards
43
Table A-3. Physical Characteristics of the Four-Port at Serial Boards
43
Table A-5. Physical Characteristics of the PCMCIA Serial Cards
44
Software Specifications
45
Table A-6. Environmental Characteristics of the Serial Hardware
45
Table A-7. Software Characteristics
45
Table B-1. RS-232, RS-422, and RS-485 Features
47
Appendix B Serial Communication Issues
48
Duplex Architectures
48
Full Duplex
48
Half Duplex
49
Termination
50
Bias Resistors
50
DTE Vs. DCE
51
Appendix C Uninstalling the Serial Hardware and Software
53
Removing the Hardware Information
53
Uninstalling the ni Serial Software
54
Appendix D Troubleshooting and Common Questions
57
Missing Serial Port in the Niports List
57
Resolving Resource Conflicts
57
Troubleshooting Diagnostic Messages
58
Common Questions
59
Appendix E Customer Communication
60
Glossary
66
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