00772425 datasheet(29/42 Pages) BURKERT

29 / 42 page

Type büS

büS network shielding

11.5

Network with none shield connected devices

Not recommended to have “None” shield connected devices only. Network shield would be floating at all

and this is equal to unshielded.

When using devices without an internally connected shield, take care that one end of büS shield must be

connected directly to FE. Either a direct or RC shield connection can be used at the other shield end. The

devices of the shielding type "None" are located in between with minimal stitches (e.g. with T-piece).

▪ For this, use either devices at the ends of network.

Device 3

(None)

Device 4

(RC)

Device 2

(None)

Device 1

(Direct)

Fig. 31: büS network with devices without internal shield connection (shielding "None")

▪ Or connect cable shield directly to FE on both ends (example).

Device 3

(None)

Device 4

(None)

Device 2

(None)

Device 1

(None)

Equipotential, clean FE area

Fig. 32: büS network with devices without internal shield connection (shielding "None")

00772425 Datasheet(PDF) 29 Page - Christian Bürkert GmbH & Co. KG