Rockwell Automation Publication 1769-UM012B-EN-P - January 2014
111
Using Electronic Keying
Appendix E
EXAMPLE
In the following scenario,
Disable Keying allows I/O communication
.
The module configuration is for a 1756-IA16 digital input module. The physical
module is a 1756-IB16 digital input module. In this case, communication is
allowed because the two digital modules share common data formats.
IMPORTANT
Changing electronic keying selections online may cause the I/O
communication connection to the module to be disrupted and may result in
a loss of data.
Module Configuration
Vendor = Allen-Bradley
Product Type = Digital Input Module
Catalog Number = 1756-IA16
Major Revision = 2
Minor Revision = 1
Physical Module
Vendor = Allen-Bradley
Product Type = Digital Input Module
Catalog Number = 1756-IB16
Major Revision = 3
Minor Revision = 2
Communication is allowed.
Summary of Contents for Allen-Bradley 1769-ASCII
Page 1: ...Compact I O ASCII Module Catalog Numbers 1769 ASCII User Manual ...
Page 4: ...4 Rockwell Automation Publication 1769 UM012B EN P January 2014 Summary of Changes Notes ...
Page 101: ...Rockwell Automation Publication 1769 UM012B EN P January 2014 101 Error Codes Appendix C ...
Page 117: ......