Rockwell Automation 1794-L34 FlexLogix Controller System User Manual User 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