User manual
Publication 1768-UM001C-EN-P - November 2007
26 Communicate over Networks
1768-EWEB Web Server Module
The 1768-EWEB EtherNet/IP web server module supports:
• the bridging and routing of messages, but no I/O control.
• data access (read and write) to controllers via a standard web browser.
• custom web pages.
• email.
• raw, open-socket interface.
In this example:
• you can route messages, upload/download programs, and flash upgrade 
modules by using the web server module as part of the communication 
path to access the target device.
• you can view and modify data that resides in a 1768 CompactLogix 
controller via a standard web browser.
• you can create custom web pages that are tailored to your application. 
Use ASP functions to populate your web pages with live controller data.
• you can send an email initiated by a Logix controller via a MSG 
instruction.
• you can open TCP or UDP communication links to other standard 
Ethernet devices via open sockets.
CompactLogix EtherNet/IP Web Network
Firewall/Router
Ethernet Switch
Ethernet Switch
1769-L43 or 1768-L45 CompactLogix Controller 
with the 1768-EWEB Module
Workstation
with Web Browser
PanelView Terminal
Standard Ethernet 
Device, such as an 
RFID Scanner
ControlLogix Controller










