1 cs-series controller link units, 1-1 overview, 1-2 unit number – Omron CQM1H-CLK21 User Manual
Page 109: Cs-series controller link units, Overview, Unit number

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CS-series Controller Link Units
Section 4-1
4-1
CS-series Controller Link Units
The following settings are required for a Controller Link Unit used with a CS-
series PLC.
4-1-1
Overview
Unit Number
Node Address
Baud Rate
Note Factory default setting is in bold.
Always leave pins 3 and 4 OFF.
Terminating Resistance
4-1-2
Unit Number
Set the unit number for each Unit using the rotary switches on the front of the
Unit. The unit number is used to identify a CPU Bus Unit within the PLC. Any
unit number can be set between 0 and F in hexadecimal (00 to 15 in decimal)
.
Item
Switch
Page
Unit number
Unit number setting switch
Node address
Node address switches
Baud rate
Baud rate, pins 1 and 2
Terminating resistance
Terminating resistance switch
CLK21-V1
Setting range
Nodes
01 to F (default is 0)
All nodes in the Network
Setting range
Nodes
01 to 32 (default is 01)
All nodes in the Network
Pins
Baud rate
Maximum
transmission
distance
Nodes
Pin 1
Pin 2
OFF OFF
2 Mbps
500 m
Set same
rate for all
nodes in the
Network.
ON
OFF
1 Mbps
800 m
OFF
ON
500 Kbps
1 km
ON
ON
Cannot be set.
Front switch
Terminating
resistance
Nodes
OFF
(factory default)
Not connected
All nodes in the Network
Turn ON the terminating resis-
tance at the nodes at both
ends of the Network and turn it
OFF at all other nodes.
ON
Connected
Note: The factory default settings are shown above.