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Publication 1761-UM006A-EN-P - February 2001
3-2 Operation
ENI Functional Overview
The ENI provides 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 256 nodes. The
ENI uses these nodes for different functions.
The ENI uses 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 functions by
groups of node numbers:
Program Upload/Download
and On-Line Sessions
The ENI allows you to connect from your PC to controllers over
Ethernet. The following procedure can be used when the computer
has a connection directly onto Ethernet (PCI card, PCMCIA interface,
built in TCP/IP port, etc.) and the ENI is plugged into the computer’s
RS-232 (COMM) port.
RSLinx on Ethernet (PC Connected to Ethernet)
Follow these steps to configure RSLinx for Ethernet operation.
1. Open RSLinx and open the driver configuration dialog.
ENI 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
E-Mail Node 150 to 199 Configure SMTP e-mail address String see chapter 6
Node 50 to 99 Send e-mail message to configured SMTP
e-mail address
String see chapter 6
ENI Configuration Node 248 to 254 ENI Configuration Registers Integer or String
depending on parameter
see chapter 4
IMPORTANT
You must use RSLinx version 2.30.00 or newer to
connect with the 1761-NET-ENI.