Siemens 7XV5450-0BA00/BB, Manual

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DIP Switch Mini Star Coupler
S 1/1 On
S 1/2 Off
S 1/3 On
Master Channels: RS232 and FO2, Additional Cascading for Another Mini Star Coupler
[dw_example_master-startopology-rs232_kaskad, 1, en_US]
Figure 3-3 Example 2: Star Topology with Master Redundancy and a Cascaded Mini Star Coupler
(1) The RS232 interface and the FO2 channel are the master channels. The 2 RTU masters must be
connected directly to this mini star coupler.
The mini star coupler works in extended mode with the connected masters.
(2) The FO1 channel is an additional slave channel here. FO3, FO4, and FO5 are also slave channels.
The FO5 channel is used for cascading other mini star couplers/devices.
The cascaded mini star couplers work in compatibility mode in the star topology.
The following table shows how you need to adjust the DIP switches for the mini star couplers in the applica-
tion example as per
Figure 3-3 .
Mini Star Coupler (left) DIP Switch Mini Star Coupler (right)
On S 1/1 Off
Off S 1/2 Off
On S 1/3 Off
Application Examples
3.4 Star Topology with Master Redundancy (Extended Mode)
Accessories, Mini Star Coupler, Manual 27
C53000-G9050-C595-1, Edition 05.2020