b. Installation by connecting devices and noise sources to a common earth electrode
This is an earthing method to connect the device that is connected with a communications cable,
other devices, and a device that could be a noise source, to a common earth electrode.
This earthing method is not recommended, because the device that is a potential noise source
may interfere electromagnetically with other devices.
Hub
PLC
Control panel Other device Motion Controller
A device that could be
a noise source
Daisy Chain
This is an earthing method to connect the device that is connected with a communications cable, other
devices, and a device that could be a noise source using a daisy-chain topology to a common earth
electrode.
This earthing method is not recommended because the device that could be a noise source may inter-
fere electromagnetically with other devices.
Hub
PLC
Control panel Other device Motion Controller
A device that could be
a noise source
4 Mounting and Wiring
4-25
CK3E-series Programmable Multi-Axis Controller User’s Manual Hardware (I610)
4-8 Grounding
4
4-8-2 Grounding
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