User manual
11 Publication 1768-UM001C-EN-P - November 2007
Chapter
 1
1768 CompactLogix Overview
Introduction
This chapter explains the design and installation requirements of the 1768 
CompactLogix controllers.
About the 1768 
CompactLogix Controllers
The CompactLogix system is designed to provide a Logix solution for 
machine-level control applications with I/O, motion, and network 
requirements.
The 1768-L43 and 1768-L45 controllers offer one built-in serial port and have 
a key on the front panel so you can change controller modes.
Topic Page
About the 1768 CompactLogix Controllers 11
Designing a System 13
Additional Resources  13
CompactLogix Chassis
CompactLogix 
Controller
Available 
1768 Slots
Number of 1768 
Communication 
Modules, Max
Type of 
Communication 
Modules
Number of 1768-M04SE 
Modules, Max
Number of 
Connections 
Supported, Max
1768-L43 2 2 1768-ENBT
1768-EWEB
1768-CNB
1768-CNBR
2 250
1768-L45 4 2 4
CompactLogix Communication Modules
Communication Module Function
1768-ENBT Module for Ethernet/IP communication
1768-M04SE Module for motion control of SERCOS drives
1768-EWEB Web server module for the remote monitoring 
and modification of data via an XML web page 
raw socket
1768-CNB and 1768-CNBR Modules for ControlNet communication










