Allen-Bradley Logix5000 Programming Manual

20 Publication 1756-PM004C-EN-P - October 2009
Chapter 1 Communicate with I/O Modules
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

Allen-Bradley Logix5000 Specifications

General

Brand	Allen-Bradley
Model	Logix5000
Category	Controller
Language	English