RSTI-EP PROFINET I/O Controller User Manual
Section 1
GFK-2571R
May 2021
Introduction
20
1.6.7
Two RX3i CPUs with Two PROFINET Networks and
One Ethernet Network
Figure 12 shows two RX3i CPU nodes, each with one RX3i PROFINET Controller module and
one RX3i Ethernet Transmitter Module (ETM). The PROFINET Controller modules are
connected to separate networks (IO LAN1 and IO LAN2 in the illustration). IO LAN1 and IO
LAN2 are used for PROFINET IO traffic.
The RX3i Ethernet Transmitter Modules are connected to the same Ethernet LAN (LAN3 in
the illustration). PAC Machine Edition, HMI, and Historian use LAN3 to configure and
monitor the application. LAN3 is also used for inter-node communication such as EGD,
SRTP, and Modbus/TCP. The three separate networks do not compete for network
bandwidth or interfere with one another.
Figure 12: RX3i System with two PROFINET LANs & one Ethernet LAN
Summary of Contents for PACSystems RX3i
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