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Allen-Bradley 1771-DA manual available for free PDF download: User Manual
Allen-Bradley 1771-DA User Manual (262 pages)
ASCII I/O Module
Brand:
Allen-Bradley
| Category:
I/O Systems
| Size: 1.26 MB
Table of Contents
Table of Contents
2
To Our Customers
5
Overview of this Manual
5
Intended Audience
5
Notational Conventions
5
Some Tips on Using this Manual
6
Typical Applications
7
Getting Started with Your ASCII Module
8
PLC 2 Family Processors
9
What You Need to Get Started
9
Reading Data from Your ASCII Device
17
Writing Data to Your ASCII Device 2
21
PLC 3 Processors
25
What You Need to Get Started
25
Reading Data from Your ASCII Device
35
Writing Data to Your ASCII Device
39
Choosing Module Features
43
Chapter Objectives
43
Choosing the Mode of Communication
43
Choosing the Mode of Module Operation, IW1(02 04)
55
Using BCD Delimiters (Report Generation Mode, Only), IW4(10 16) 3
56
Justifying Margins, IW3(03)
57
Using the End of String Delimiter, IW3(10 16) 3
59
Setting String Length, IW2(00 13)
60
Determining Block Transfer Length
62
Removing the Fill Character (Data Mode, Only), IW4(10 16)
63
Removing Header and Trailing Characters, IW4(00 03, 04 07)
65
Choosing I/O Buffer Size, IW3(00 02)
66
Choosing Transmission Mode, IW1(05 07)
67
Selecting Delay for Carriage Return, IW3(06 07)
68
Setting Remaining Bits in IW1(10 17)
68
Selecting the Number of Initialization Words, IW1(00 01) 3
71
Recording Bit Settings in Initialization Words
72
ASCII I/O Module Tutorial
75
Chapter Objectives
75
PLC 2 Family Processors
76
Adding Initialization Rungs
76
Setting Bits in Initialization Words
78
Expanding the Number of Initialization Words
79
Changing the Module's String Length (Read, Only)
79
Justifying Data
81
Demonstrating End of String Delimiter
83
Removing the Fill Character
88
Removing Header and Trailing Characters 4
89
Demonstrating Data Conversion 4
91
Formatting a Single Line Message 4
95
Formatting a Multi Line Message 4
98
Formatting a MultiLine Message.
101
Formatting a SingleLine Message.
101
PLC 3 Processors
101
Addinginitialization Rungs.
104
Setting Bits in Initialization Words
104
Expanding the Number of Initialization Words
106
Changing the Module's String Length (Read, Only)
106
Justifying Data
108
Demonstrating End of String Delimiter
109
Removing the Fill Character
114
Removing Header and Trailing Characters
116
Selecting Report Generation Mode, Data Conversion
117
Formatting a Single Line Message
120
Formatting a Multi Line Message
123
Demonstrating Data Conversion
126
Summary
129
Handshaking
130
Chapter Objectives
130
Understanding Handshaking Fundamentals
130
Reading Status And/Or Data from the Module
132
Function of Control and Status Bits
136
Chapter Objectives
136
Command Words
136
Initialization Words
138
Status Words
148
Troubleshooting
160
Chapter Objectives
160
Recognizing Initialization Errors
160
How You Interpret Status Indicators 7
161
How You Interpret Codes in Status Word One
163
Testing the ASCII Module and Cables
166
PLC 2 Family Processors
169
Complete Getting Started Program, PLC 2 Family
169
Block Transfer Programming
171
Block Transfer Timing
173
Example Read (Only) Program
184
Example Write (Only) Program
186
Example Read/Write Program
187
Example Application Write Program
190
For PLC-3 Family Processor
194
Block Transfer Programming
198
Example Read (Only) Program
209
Example Write (Only) Program
213
Example Read/Write Program
215
Example Application Read/Write Program
218
For PLC 3 Family Processor
223
Block Transfer Programming
227
Example Read (Only) Program
238
Example Write (Only) Program
242
Example Read/Write Program
244
Example Application Read/Write Program
247
ASCII Conversion Tables
252
Specifications
257
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