Noise Reduction When Using Contact Outputs - Omron CS1W-FLN22 Operation Manual

Network Installation
3-6-4

Noise Reduction when Using Contact Outputs

Mounting Location
Cable Location
Communications errors can occur when Contact Output Units are mounted to
the same Rack or connected to the same PLC as an FL-net Unit due to noise
generated by the contact outputs. Use one or more of the following measures
when installing Contact Output Units and Ethernet Units on the same Rack.
Mount (or connect) any Contact Output Units as far away from the FL-net Unit
as possible.
Contact Output Unit
Contact outputs
Separate the transceiver cable or twisted-pair cable connecting the FL-net
Unit as far from the wiring to the Contact Output Units as possible. The coax-
ial cable must also be placed as far away from the Contact Output Units and
their wiring as possible.
Contact Output Unit
FL-net Unit
Contact outputs
To transceiver/hub
Section 3-6
FL-net Unit
37