Connecting The Field Bus Interface; Selecting The Cable - Festo CP-FB5-E Manual

1. Installation
1.5

Connecting the field bus interface

1.5.1 Selecting the cable

1.5.2 Connecting the field bus interface

Festo P.BE-CP-FB5-E-EN en 0112a
Please note
Observe the cable specifications.
Signal reflections and signal attenuations can occur during
data transmission, particularly with high baud rates. Both
can lead to faults in transmission.
Reflections are caused by:
– missing or incorrect terminating resistor
– branches
Signal attenuations are caused by:
– transmission over long distances
– unsuitable cables
If you are using the Festo IP65 plug, the cable must have a
diameter of 6 - 9 mm.
A twisted, screened two-core cable must be used as the field
bus cable. Please refer to your PLC manual for the correct
cable type. Take into account here the distance and the set
field bus baud rate.
Please note
Only the Festo plug will comply with standard IP 65.
There is a sub-D socket on the node for connecting the CP
system to your field bus system. This socket is for the supply
cable, as well as for the continuing field bus cable. You can
connect the node by means of the sub-D plug (IP 65) from
Festo (part no. 18529). The outer diameter of the cable for the
Festo sub-D plug must be 6..9 mm.
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