Omron SYSMAC CS1W-CLK11 Operation Manual page 82

CQM1H-series Controller Link Units
Note
66
The Controller Link Unit has built-in terminating resistance, which can be con-
nected simply by turning ON the slide switch.
Switch at the front
OFF (default)
ON
1. Always turn OFF the PC's power before setting the terminating resistance
switch.
2. Turn ON the switch to connect terminating resistance at the nodes at both
ends of the Network and turn OFF the switch at all other nodes. Normal
communication cannot be performed in the Network unless all the nodes
are set properly.
3. The TER indicator will light when the terminating resistance switch is set
to ON.
4. The switch is factory-set to OFF (terminating resistance not connected).
(The diagram shows the factory setting.)
Terminating resistance
Not connected.
connected
Section 4-5