User manual

82 Publication ENET-UM001I-EN-P - January 2010
Chapter 6 Control I/O
Select a Communication
Format
When configuring an I/O module, select its communication format. The
chosen communication format determines the data structure for the module’s
tags. Many I/O modules support different formats. Each format uses a
different data structure. The chosen communication format determines:
• direct or rack-optimized connection.
•ownership.
See online help in RSLogix 5000 prog
ramming softw
are for specific
communication formats per I/O module.
Communication Formats
Type of I/O
modul
e
Desired Connection Type Required Communication Format
That Specifies
Digital A rack-optimized connection Rack Optimization
To use specialty features of the
module, such as diagnos
tics,
timestamps, or electronic fuses
Full Diagnostics
CST Timestamped
Digital A direct connection Scheduled Data
Input Data
Output Data
Analog A direct connection
(only direct connection is
s
upported for analog modules)
Flo
at Data
Integer Data
CST Timestamped