Manual

Publication 1756-UM009C-EN-P - December 2010 43
ControlLogix Analog I/O Module Features Chapter 3
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