Omron K6CM User Manual page 150

5 Installation and Wiring
Precautions for Correct Use
• Always use an Ethernet switch for tag data links in the network.
If EtherNet/IP tag data links (cyclic communications) are used with a repeating hub, the com-
munications load on the network will increase. This will increase collisions and may prevent
stable communications.
• Do not bend the communications cables past its natural bending radius or pull on it with
excessive force.
• Do not place heavy objects on top of the communications cables or other wiring lines.
• Do not exceed the communications distance that is given in the specifications and use the
specified communications cable.
• Set the switching hub connected to the K6CM devices as follows. If any setting other than the
following is used, the link will be unstable, and normal communications are prevented.
Switching hub
AUTO-Nego
100 Mbps
fixed
(Best = Recommended; OK = Allowed; --- = Not allowed)
• If the K6CM device was manufactured before April 30, 2019, a tag data link timeout may
occur in the network system including the node configured for multicast communications.
Use a switching hub with multicast filtering function to prevent multicast packets from reach-
ing the K6CM devices.
5 - 30
K6CM
AUTO-Nego
Best
FULL ---
HALF OK
K6CM Motor Condition Monitoring Device User's Manual (N219)