Ring Topology With One Controller - Emerson PACSystems RX3i User Manual

RSTI-EP PROFINET I/O Controller User Manual
GFK-2571R
CPE100/CPE115 Embedded PROFINET IO-
Controller Ring Port Connection
Cu Fixed Ports @100Mbps
CPE330/CPE400/ CPL410/CPE330, Embedded
PROFINET IO-Controller
Ring Port Connection
Cu Fixed Ports @100Mbps
Cu Fixed Ports @1Gbps
PNC001 Ring Port Connection
(Port Type or SFP Type)
Cu Fixed Ports @100Mbps
Cu Fixed Ports @1Gbps
Cu SFP @100Mbps
Cu SFP @1Gbps
100Base FX SFP (MMF) – 100Mbps
100Base LX10 SFP (SMF) – 100Mbps
1000Base SX SFP (MMF) - 1Gbps
1000Base LX SFP (SMF) - 1Gbps
1000Base ZX SFP (SMF) - 1Gbps
Disclaimer: Performance numbers for SFPs are with Emerson branded SFPs, or are supported
/ tested only with Avago or Finisar vendors. Other vendors may produce varying
performance results.
6.2

Ring Topology with One Controller

The following diagram illustrates a simple ring topology with one RX3i CPU Node and three
I/O Devices on the same PROFINET network. In Figure 99: Ring Topology with One
Controller, the PROFINET Controller module in the RX3i controller is configured to be the
Media Redundancy Manager and the I/O Devices, in this case PNS modules, are configured
to be Media Redundancy Clients.
17
Note that if the port is configured as a Critical Network Port, the data rate is forced to 100Mbps. This results in the minimum update rate
as indicated in the row above. For further details, refer to Critical Network Ports in Section 3.5.2
Redundant Media
17
Minimum Recommended I/O Update Rate
(ms)
2
512
4
512
16
16
32
64
64
Minimum Recommended
I/O Update Rate(ms)
16
Minimum Recommended
I/O Update Rate(ms)
8
64
Section 6
May 2021
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