Rockwell Automation 1769-L23E-QB1B_QBFC1B_QBFC1B CompactLogix Packaged Controller Installation Instructions - Manual (Page 28)

28 CompactLogix Controller
Rockwell Automation Publication 1769-IN082C-EN-P - February 2013
Connect Using the RS-232 Connection
1769-L23E-QB1B, 1769-L23-QBFC1B, and 1769-L23E-QBFC1B Controllers
To connect to your controller using the RS-232 (serial) connection, simply connect the 9-pin
female end of the serial cable to the serial port of the controller.
Connect Using the Ethernet Connection
1769-L23E-QB1B and 1769-L23E-QBFC1B Controllers
Complete these steps to connect to the controller using the Ethernet connection.
1. Insert the RJ45 connector of the Ethernet cable into the Ethernet port located on the
front of the controller.
WARNING: If you connect or disconnect the serial cable with power applied to this module or the
serial device on the other end of the cable, 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.
WARNING: If you connect or disconnect the Ethernet 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.
ATTENTION: Do not plug a DH-485 network cable or a NAP port cable into the Ethernet port.
Undesirable behavior and/or damage to the port may result.
CompactLogix L23E
8 ------ NC
7 ------ NC
6 ------ RD-
5 ------ NC
4 ------ NC
3 ------ RD+
2 ------ TD-
1 ------ TD+