Rockwell Automation 1794-L34 FlexLogix Controller System User Manual - Manual (Page 58)

Publication 1794-UM001G-EN-P - January 2007
58 Place, Configure, and Monitor I/O
Connections for remote devices
To optimize the number of available connections, place remote,
digital I/O in the same location and use a rack-optimized connection
to the remote adapter that connects the remote I/O to the FlexLogix
system.
If you have remote analog I/O modules, or want a direct connection
to specific remote I/O modules, you do not have to create the
rack-optimized connection to the remote adapter. To use direct
connections to remote I/O, select “none” for the communication
format of the remote communication device.
For more information... The Logix5000 Controllers Common Procedures Manual, 1756-PM001
provides information on how to:
• configure I/O
• address I/O data
• buffer I/O data
The Logix5000 Controllers Design Guidelines Reference Manual,
1756-RM094 provides guidelines on how to:
• buffer I/O
• specify an RPI rate
• select a communication format
• manage I/O connections
IMPORTANT
It is vital that you manage your connections to remote devices
because, while the FlexLogix controller allows up to 100 total
connections, the communications cards that connect to remote
devices are limited to far fewer connections (i.e., 32
connections for ControlNet or EtherNet/IP).