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Connecting up the terminating resistor for PROFIBUS DP
Terminate a PROFIBUS DP segment with its characteristic impedance at its two ends, i.e. at
the first and at the last station of the segment. A terminating resistor is available for this
purpose. It can be screwed onto the unused PROFIBUS interface of the CM.
The following figure shows a typical application for a terminating resistor.
①
②
Figure 5-13
SIMATIC RF166C
Operating Instructions, 12/2019, C79000-G8976-C578-01
PROFIBUS connection
Terminating resistor
Terminating resistor on RF166C
5.7 Setting the PROFIBUS DP address
Connecting
47
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