Bus Termination With Terminating Resistors - Festo CP-FB13-E Programming And Diagnostics Manual

1. Installation

1.6.2 Bus termination with terminating resistors

Festo P.BE-CP-FB13-E-EN en 0112e
Please note
Use a bus termination at both ends of a bus segment. This
also applies when the module or communication processor
is at the beginning of the bus cable.
If the CP system is at the end of the field bus system, a bus
termination is necessary.
Recommendation:
Use here the sub-D plug from Festo (part no. 18529). A suit-
able resistor network is provided in the housing of the sub-D
plug. The bus termination must be switched manually.
A B
A B
Fig. 1/7: Switch for bus termination in the Festo sub-D plug
Bus termination
not
switched on switched on
ON ON
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