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Rockwell Automation Publication 1769-UM012B-EN-P - January 2014
Chapter 2
Configure the 1769-ASCII Module
Input Channel1
The Input Channel1 does the following tasks:
•
On first scan, store current value of Rx1 Transaction ID (channel 1) as
‘most recent’
•
When the Rx Transaction ID changes, it indicates there is ‘new data.’
•
Copies data from the module's Input Tags to a STRING tag
(InData1) if CNI = 1.
•
Indicates to the MainRoutine that new data has arrived. Saves this value of
Rx Transaction ID, so you can detect the next change.
Содержание Allen-Bradley 1769-ASCII
Страница 1: ...Compact I O ASCII Module Catalog Numbers 1769 ASCII User Manual ...
Страница 4: ...4 Rockwell Automation Publication 1769 UM012B EN P January 2014 Summary of Changes Notes ...
Страница 20: ...20 Rockwell Automation Publication 1769 UM012B EN P January 2014 Chapter 1 Compact I O ASCII Module Notes ...
Страница 65: ...Rockwell Automation Publication 1769 UM012B EN P January 2014 65 Configure the 1769 ASCII Module Chapter 2 ...
Страница 67: ...Rockwell Automation Publication 1769 UM012B EN P January 2014 67 Configure the 1769 ASCII Module Chapter 2 ...
Страница 86: ...86 Rockwell Automation Publication 1769 UM012B EN P January 2014 Chapter 3 I O Memory Mapping Notes ...
Страница 96: ...96 Rockwell Automation Publication 1769 UM012B EN P January 2014 Appendix B Status Indicators Notes ...
Страница 101: ...Rockwell Automation Publication 1769 UM012B EN P January 2014 101 Error Codes Appendix C ...
Страница 112: ...112 Rockwell Automation Publication 1769 UM012B EN P January 2014 Appendix E Using Electronic Keying Notes ...
Страница 114: ...114 Rockwell Automation Publication 1769 UM012B EN P January 2014 Appendix F History of Changes Notes ...
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