Rockwell Automation 1761-NET-ENIW MicroLogix Ethernet Interface (ENI) User Manual - Manual (Page 38)

Publication 1761-UM006E-EN-P - August 2005
3-8 Operation
PC Connected to Ethernet via the ENI or ENIW
As shown below, the ENI/ENIW can also be used to connect a
computer’s RS-232 port to EtherNet/IP and allow program upload and
download and online sessions with a maximum of four EtherNet/IP
devices. (Note: The ENI/ENIW limits the number of concurrent
outgoing connections to four).
When using the ENI/ENIW as the computer’s interface, you can only
perform functions supported by RSLogix/RSLinx and ENI/ENIW
configuration operations (using the ENI/ENIW Configuration Utility).
In addition, before you can use the ENI/ENIW to connect across
Ethernet to destination devices in this fashion, the ENI/ENIW must
have a valid TCP/IP address, and you must configure the ENI/ENIW’s
message routing table (nodes 100 to 149). Once the ENI/ENIW is
properly configured, you can configure RSLinx.
ETHERNET ETHERNET FAUL AULT RS232 RS232
NET NET TX/RX TX/RX TX/RX TX/RX
PWR PWR
CABLE CABLE EXTERNAL EXTERNAL
IP
ETHERNET ETHERNET FAUL AULT RS232 RS232
NET NET TX/RX TX/RX TX/RX TX/RX
PWR PWR
CABLE CABLE EXTERNAL EXTERNAL
IP
ETHERNET ETHERNET FAUL AULT RS232 RS232
NET NET TX/RX TX/RX TX/RX TX/RX
PWR PWR
CABLE CABLE EXTERNAL EXTERNAL
IP
ETHERNET ETHERNET FAUL AULT RS232 RS232
NET NET TX/RX TX/RX TX/RX TX/RX
PWR PWR
CABLE CABLE EXTERNAL EXTERNAL
IP
ENI Route Configuration
TCP/IP
DF1
131.200.50.92 Node 1
131.200.50.94 Node 2
131.200.50.97 Node 3
131.200.50.98 Node 4
MicroLogix 1500
DF1 Node 4
CompactLogix
DF1 Node 2
CompactLogix
DF1 Node 3
ENI ENI ENI
24V dc 24V dc
24V dc
RSLogix/RSLinx SLC 5/05
DF1 Node 1
Ethernet