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Allen-Bradley 1784-KTXD manual available for free PDF download: Reference Manual
Allen-Bradley 1784-KTXD Reference Manual (125 pages)
Brand:
Allen-Bradley
| Category:
Scanner
| Size: 0.57 MB
Table of Contents
Table of Contents
3
About this Manual
6
Objectives of this Manual
6
Audience
6
Conventions
6
About the Examples
6
Related Publications
7
Understanding I/O Scanner Concepts
8
Chapter Preview
8
How Does the Scanner Relate to I
8
I/O Addressing
10
What the Scanner Does 1
11
What the Scanner Does
13
Operating Modes
14
Dual Port RAM
14
Host Responsibilities
15
What's Next
16
Start up and Shutdown
17
Chapter Preview
17
Using the Ktx Memory Mapped Hardware
17
Running Diagnostics on the Ktx Card
19
Running the Host Compatibility Test
23
Loading the Protocol File
26
Initialization
28
Shutdown 2
29
Shutdown
30
What's Next
30
Programming Overview
31
Chapter Preview
31
Dual Port Layout
31
Adapter Status Table
31
I/O Image Tables
31
Command Interface
32
Confirmation Handshaking
33
Handling Host Interrupts
34
Installing and Enabling the Interrupt
35
Writing the Interrupt Service Handler
36
What's Next
38
Issuing Scanner Management Commands
39
Chapter Preview
39
Basic Command and Confirmation Structures
39
Host Commands
40
What's Next
50
Issuing Block Transfer Commands
51
Chapter Preview
51
How Block Transfer Works
51
Adapter Decide Length (ADL)
52
Host BT Write
52
Host BT Read
56
Time to Completion
59
Unsolicited Block Transfer
60
What's Next
60
Reporting Ktx Scanner Status
61
Chapter Preview
61
Operating Status Word
62
Adapter Status Table
63
Ktx Hardware Status Register
66
Using the Leds as Status Indicators
66
Exception/Error Handling
66
What's Next
69
Understanding Discrete I/O
70
Direct Image Table Access
70
To Access a Single Input Terminal
71
To Reset (Clear) a Terminal Is a Little Trickier
71
Timing of Discrete I/O
72
Input Change of State (COS) Detection
75
Interrupt at End of Scan List
76
What's Next
76
Dual Port Layout
77
Appendix Preview
77
Programming Examples
80
Appendix Preview
80
About the Examples
81
Ktx Hardware Registers
115
Appendix Preview
115
Glossary
116
Appendix Preview
116
Support Services
120
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Allen-Bradley Categories
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Controller
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