Omron CQM1H-CLK21, CVM1-CLK21 CJ-series Controller Link Units, Default setting is 2 Mbps, 500 m

CJ-series Controller Link Units Section 4-2

2. The default setting is 2 Mbps, 500 m.

4-1-5 Terminating Resistance

Turn ON the terminating resistance using the switch on the bottom of the Unit for the Units of both ends of the Network. The terminating resistance is required at both ends of a Network to absorb unnecessary signals and reduce noise.

The Controller Link Unit has built-in terminating resistance, which can be con- nected simply by turning ON the slide switch.

	ON
Bottom switch	Terminating resistance
OFF (factory default)	Not connected.
ON	Connected.

Note 1. Always turn OFF the PLC’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 LED indicator will light when the terminating resistance switch is set to ON.

4.The default setting is OFF (not connected).

4-2 CJ-series Controller Link Units

The following settings are required for a Controller Link Unit used with a CJ- series PLC.

Item	Switch	Page
Unit number	Unit number setting switch	90
Node address	Node address switches	91
Baud rate	Baud rate, pins 1 and 2	92
Terminating resistance	Terminating resistance switch	92

89