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Connecting
PROFIBUS topology
PROFIBUS communication can be set up as a line topology. Also note the information in the
section "Loop-through of the supply voltage and PROFIBUS (Page 43)".
Figure 5-1
Reader connector system
One reader always occupies one M12 connection socket on the RF166C. You can connect
the reader to the communications module using a preassembled cable. The connection
cable is available in lengths of 2, 5, 10, 20 and 50 m as standard. If necessary, these can be
extended.
Figure 5-2
28
Configuration graphic of a line topology
Overview of connections
Operating Instructions, 12/2019, C79000-G8976-C578-01
SIMATIC RF166C
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