User manual

28 Rockwell Automation Publication 1769-UM011I-EN-P - February 2013
Chapter 2 Install the 1769-L3x Controllers
Using the Channel 0 Default Communication Push Button
The Channel 0 default communication push button is
located on the front of the controller in the lower right
corner as shown in the illustration. Use the Channel 0
default communication push button to change from
the user-defined communication configuration to the
default Communication mode. The Channel 0 default
communication (DCH0) status indicator turns on
(green, steady) to indicate that the default
communication configuration is active.
Make Ethernet Connections
to the Controller
The 1769-L32E and 1769-L35E controller are shipped with the BOOTP utility
enabled. You must assign an IP address to the Ethernet port for the controller to
communicate over an EtherNet/IP network.
Control Lines No Handshaking
Error Detection BCC
Embedded Responses Auto Detect
Duplicate Packet (Message) Detect Enabled
ACK Timeout 50 (x 20 ms)
NAK Receive Limit 3 Retries
ENQ Transmit Limit 3 Retries
Data Bits 8
Stop Bits 1
TIP
Only Channel 0 has a default communication push button.
IMPORTANT
The default communication push button is recessed.
Before pressing the default communication push button, be sure to note the
present communication configuration for Channel 0. Pushing the default
communication push button resets all configured parameters back to their
default settings.
To return the channel to its user-configured parameters, you must enter them
manually while online with the controller or download them as part of an
RSLogix 5000 software project file. To do this online with RSLogix 5000
software, access the Controller Properties dialog box and enter parameters on
the Serial Port, System Protocol, and User Protocol tabs.
Parameter Default
WARNING: If you connect or disconnect the communication cable with power
applied to this module or any device on the network, an electrical arc can occur.
This could cause an explosion in hazardous location installations.
Be sure that power is removed or the area is nonhazardous before proceeding