Rockwell-automation 1769-ASCII Compact I/O ASCII Module User Manual download pdf (Page 35)

Rockwell Automation Publication 1769-UM012B-EN-P - January 2014 35

Configure the 1769-ASCII Module Chapter 2

Ladder Logic Example

This example illustrates connecting the cable from your computer to channel 0 of

the 1769-ASCII module in alternating mode. This is the ladder logic in the Logix

Designer program, L35ERM_QuickStart_002_V16.ACD.

Main Routine

The Main Routine resets the values of input and output lengths. This zeroes the

data in and out.

1 2 ... 30 31 32 33 34 35 36 37 38 39 40 ... 117 118

Compact I/O ASCII Module 1
Important User Information 2
Summary of Changes 3
New and Updated 3
Information 3
Table of Contents 5
Studio 5000 Environment 7
Additional Resources 8
Example Programs 8
Environment and Enclosure 10
Install the Module 13
Assemble the System 14
Minimum Space 15
Panel Mount 15
DIN Rail Mount 16
Ground the Module 17
Connect the D-sub Connector 18
Chapter 2 21
Configure the 1769-ASCII 21
Module Definition Dialog Box 24
Controller-scoped Tags 32
Data Types 32
Connect to Channel 0 of the 34
Module in Alternating Mode 34
Ladder Logic Example 35
Input Ladder 36
Output Ladder 37
Connect to Both Channels of 41
Input Channel0 43
Input Channel1 44
Output Channel0 45
Output Channel1 46
Simultaneous Mode 49
Data Type: AB:1769_ASCII:C:0 55
Configure the Module for Use 59
Programming Example: 62
MicroLogix 1500 Controller 62
10. Click OK 63
• Input 64
• Output 66
I/O Memory Mapping 71
Alternate Mode (one channel 72
(two channels) Input File 74
(two channels) Output File 75
Status Descriptions 76
Configuration File 77
Configuration File Parameter 79
Operation 79
Set Up the Receive Delimiters 80
Set Up the Transmit Delimiter 81
Receive Data Padding 82
Byte Swap Mode 83
Transmit Serial ASCII Data 83
Receive ASCII Serial Data 83
How to Send Data from the 84
1769-ASCII Module 84
How to Receive Serial Data 85
Master/Slave Handshake 85
Chapter 3 I/O Memory Mapping 86
Appendix A 87
All other parameters are 0 88
This is the main routine 90
• input 91
• output 92
Status Indicators 95
Appendix B Status Indicators 96
Error Codes 97
Logix Designer Example 100
Error Codes Appendix C 101
RSLogix 500 Error Report 102
ASCII Conversion Tables 103
Using Electronic Keying 105
Exact Match 106
Compatible Keying 107
Disabled Keying 109
History of Changes 113
Appendix F History of Changes 114
Rockwell Automation Support 118
Documentation Feedback 118

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