Rockwell Automation 1761-NET-ENIW MicroLogix Ethernet Interface (ENI) User Manual - Manual (Page 67)

1 Publication 1761-UM006E-EN-P - August 2005
Chapter
5
Peer-to-Peer Messaging
This chapter describes messaging between the ENI/ENIW and DF1
devices. The following topics are covered:
• Messaging Between the ENI/ENIW and DF1 Devices
• Message to Configuration Nodes (Nodes 100 to 149) and
Sending a Message to a Destination Controller (Nodes 0 to 49)
Messaging Between the
ENI/ENIW and DF1 Devices The ENI/ENIW can route a DF1 message received from the attached
controller to a compatible destination TCP/IP device, using DF1 node
addresses 0 through 49. ENI/ENIW Node addresses 100 through 149
store TCP/IP destination addresses. When the ENI/ENIW receives a
write message to nodes 100 to 149, it stores the TCP/IP destination
address in the corresponding map register.
To configure the destination TCP/IP addresses, you can use either the
ENI/ENIW Configuration Utility, or you can send a 485CIF/PLC2
message to each node as described in this section.
The table below illustrates the relationship between messages and
their corresponding configuration addresses.
Table 5.1 Message Routing
ENI/ENIW receives read
or write 485CIF/PLC2
message to ENI/ENIW
TCP/IP route
configuration Message forwarded to destination
node TCP/IP address
Node 0 Node100 111.222.233.200 (stored at Node 100)
Node 1 Node101 111.222.233.201 (stored at Node 101)