Bus Termination With Terminating Resistors - Festo CPX-FB11 Manual

1. Installation
1.4

Bus termination with terminating resistors

1
Resistor for bus
termination
(121 ± 1 %,
0.25 W)
Fig. 1/8: Bus termination with resistor on the open style connection
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Please note
Fit a bus termination to both ends of a bus segment. This
also applies when the bus module or bus interface is at the
beginning of a bus cable.
If the CPX terminal is at the end of the field bus system, a bus
termination will be required.
If you are using T−adapters, we recommend that you install
the terminating resistor at the unused output of the T−
adapter.
Recommendation:
Fit a resistor (121 , 0.25 W) for the bus termination between
the connections for CAN_L and CAN_H. Fig. 1/8 shows this as
an example with the open style connection.
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Festo P.BE−CPX−FB11−EN en 0306a
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