Omron NJ501-1400 User Manual page 178

4 Installation and Wiring
Control panel
b) 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 could be a noise source may
interfere electromagnetically with other devices.
Control panel
 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
interfere electromagnetically with other devices.
Control panel
4-58
Other device NJ-series CPU Units
Hub
10 m min.
Other device NJ-series CPU Units
Hub
Other device NJ-series CPU Units
Hub
A device that could be
a noise source
PLC
A device that could be
a noise source
PLC
A device that could be
a noise source
PLC
NJ-series CPU Unit Hardware User's Manual (W500)