Rockwell Automation 1756-OF8I ControlLogix Eight-channel Isolated Analog I/O Modules - Manual (Page 34)

34 Rockwell Automation Publication 1756-UM540A-EN-P - May 2014
Chapter 2 ControlLogix Isolated Analog I/O Module Features
To see where to configure Electronic Keying, see page 126 .
EXAMPLE In the following scenario, Disable keying lets I/O
communication occur:
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 can cause the I/O
communication connection to the module to be disrupted and can 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
ANALOG INPUT
ST 0 1 2 3 4 5 6 7 ST 8 9 10 11 12 13 14 15 O
K CAL
OK
OK FORCE SD RUN
Logix5575
RU N REM PROG
DC INPUT DC INPUT
FLT 8 9 10 11 12 13 14 15
ST 0 1 2 3 4 5 6 7
ST 8 9 10 11 12 13 14 15 O
K FLT 0 1 2 3 4 5 6 7
DIAGNOSTIC