Rockwell Automation 1761-NET-ENIW MicroLogix Ethernet Interface (ENI) User Manual - Manual (Page 32)

Publication 1761-UM006E-EN-P - August 2005
3-2 Operation
ENI and ENIW Functional
Overview The ENI and ENIW provide EtherNet/IP connectivity for RS-232
devices that use DF1 full-duplex protocol. DF1 full-duplex is an open,
point-to-point protocol used in any Allen-Bradley controller with an
RS-232 port, and in many other devices. DF1 full-duplex supports up
to 255 node addresses. The ENI and ENIW use these node addresses
for different functions.
The ENI and ENIW use a memory (node) map to provide access to
the different functions you can perform. Each function uses a different
group of node addresses. The following table illustrates the ENI and
ENIW functions by groups of node numbers:
General Ethernet
Information Each Ethernet device requires a unique IP address. If your Ethernet
network is isolated from the company-wide network, any valid IP
address may be used. If your Ethernet hub is connected to a larger
Ethernet network, contact your System Administrator for unique IP
addresses.
RSLinx/RSWho
Connectivity Example
Using ENI/ENIW Interface For this example, the following IP addresses will be assigned to the
various Ethernet devices on our network:
ENI and ENIW
Function Node Group Node Function Valid Data Type For More
Information
Message Routing Node 100 to 149 Configure Route Address Integer see chapter 5
Node 0 to 49 Route DF1 MSG to IP at Configured Route
Address Integer see chapter 5
Email Node 150 to 199 Configure SMTP email address String see chapter 6
Node 50 to 99 Send email message to configured SMTP
email address String see chapter 6
Web Data Node 200 to 204 ENIW Web page data String, integer, or
floating point see chapter 7
ENI and ENIW
Configuration Node 241 to 254 ENI and ENIW Configuration Registers Integer or String
depending on parameter see chapter 4
Table 3.1 Example Network IP Addresses
IP Address ENI or ENIW Series Device
131.200.50.92 SLC 5/05 controller
131.200.50.93 1756-ENBT
131.200.50.94 Series A ENI 1761-NET-ENI #2 (1769-20 or 1769-L3x
CompactLogix controller)
131.200.50.95 Series A ENI or B/C/D
(ENI or ENIW) 1761-NET-ENI #1 (computer COMM port)