Rockwell Automation Publication 1756-UM022D-EN-P - May 2017 67
Communicate over Networks Chapter 4
EtherNet/IP Communication Examples
Figure 13 illustrates the following communication functions:
• The controllers can produce and consume standard or safety tags
between each other.
• The controllers can initiate MSG instructions that send/receive
standard data or configure devices.
(1)
• The EtherNet/IP communication module is used as a bridge, letting the
safety controller produce and consume standard and safety data.
• The workstation can upload/download projects to the controllers.
• The workstation can configure devices on the EtherNet/IP network.
Figure 13 - EtherNet/IP Communication Example
(1) GuardLogix controllers do not support MSG instructions for safety data.
Distributed I/O
1756-EN2T Module
(as an Adapter) with
1756 I/O Modules
1756-DNB Module for Remote
DeviceNet Communication
to Standard or Safety Devices
on DeviceNet Network
CompactLogix™ Controller
with Integrated EtherNet/
IP Port
FlexLogix™ Controller with 1788-ENBT Module
GuardLogix Controller with
1756-EN2T Module
1794-AENT Adapter
1734-AENT Adapter with
1734 I/O Modules
PowerFlex® 700S AC Drive
with DriveLogix™ Software
Switch
1791ES-IB8XOBV4
Module
1768 Compact GuardLogix Controller with
1768-ENBT Module
Personal
Computer/
Workstation
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