Rockwell Automation 1794-L34 FlexLogix Controller System User Manual - Manual (Page 23)

Publication 1794-UM001G-EN-P - January 2007
Communicate over Networks 23
The EtherNet/IP communication modules:
• support messaging, produced/consumed tags, HMI, and
distributed I/O
• encapsulate messages within standard TCP/UDP/IP protocol
• share a common application layer with ControlNet and
DeviceNet
• interface via RJ45, category 5, unshielded, twisted-pair cable
• support half/full duplex 10 Mbps or 100 Mbps operation
• support standard switches
• require no network scheduling
• require no routing tables
In this example:
• The controllers can produce and consume tags among each
other.
• The controllers can initiate MSG instructions that send/receive
data or configure devices.
• The personal computer can upload/download projects to
the controllers.
• The personal computer can configure devices on EtherNet/IP.
switch
Distributed I/O
1756-ENBT module
(as an adapter) with 1756
I/O modules
1794-AENT adapter with
1794 I/O modules
workstation
CompactLogix controller
with integrated
EtherNet/IP port
ControlLogix
controller with
1756-ENBT
module
FlexLogix controller with
1788-ENBT card
1734-AENT adapter
with 1734 I/O
modules
PowerFlex 700S AC
drive with DriveLogix