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8017171/115Z/V3-0/2019-01| SICKO P E R A T I N G I N S T R U C T I O N S | VISIC100SF
Subject to change without notice
INSTALLATION
3.5.4 Bus interface wiring
Fig. 24: Wiring plan for RS-485 interface
3.5.5 Shielding
The shield must be grounded at both ends to ensure effective shielding against high-
frequency interference. Especially on installations located away from each other, potential
differences can occur and therefore lead to potential equalization currents along a cable
shield. Such equalization currents on a cable shield must be avoided at all costs because
these can lead to interference signals. Contacting of the shield with the brushes of the
cable gland, “Shielding in VISIC100SF”, page 32.
Fig. 25: Shielding in VISIC100SF
1 RS-485 A
2 RS-485 B
3 RS-485 GND
4Not used
5PROFIBUS-DP B
6PROFIBUS-DP A
The RS-485 interface can be used for Modbus or TAD control unit (optional).
Line shield
Cable gland with wires
1
2
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