PL EN
29
.
Fig. 10. RS-485 Interface
Fig. 11. Supply of 24V transducers
16
15
B (-)
A (+)
RS-485
26
27
+
-
4.3. Installation Recommendations
In order to obtain a full fastness against electromagnetic noise, it is
recommended to observe following principles:
- do not supply the controller from the network in the proximity
of devices generating high pulse noises and do not apply common
earthing circuits,
- apply network lters,
- wires leading measuring signals should be twisted in pairs,
and for resistance sensors in 3-wire connection, twisted of wires
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