Rockwell Automation 1756-L6x_L7x ControlLogix System User Manual - Manual (Page 102)

102 Rockwell Automation Publication 1756-UM001O-EN-P - October 2014
Chapter 6 Serial Communication on 1756-L6x Controllers
1756-L6x Controller
Serial Port The 1756-L6 x ControlLogix controllers have a built-in RS-232 port that can be
used in various serial-based applications. The potentialr serial communication
applications include the following:
• DF1 modes (including broadcast message support)
• DF1 radio modem
• ASCII device communication
Figure 17 - ControlLogix DF1 Device Communication Example
ControlLogix Chassis Serial Communication Options
You can use the serial port of the ControlLogix controller or use ProSoft modules
in the ControlLogix to achieve serial communication. Options specific to the
ControlLogix controller serial port are described in this chapter.
For more information about ProSoft modules that can be used to establish serial
communication, see the
ProSoft Technology website or go to
http://www.prosoft-technology.com and browse available products.
Modem
Modem
Modem
RS-232 Connection
DH+ Connection
EtherNet/IP
Network
RS-232 Connection
RS-232 Connection