Omron CJ Series Operation Manual page 58

1 Overview and Features
Unit Number Switches
Use the unit number switches to set the specific unit number for each Special I/O Unit mounted in a
CPU Rack or Expansion Rack. The unit number must be the one registered in the Unit Configura-
tion.
Turn OFF the Controller before changing the unit number setting.
Unit Number Switches
MACH
No.
1
X10
MACH
No.
0
X10
Switch
Settings
00
01
02
03
04
05
06
07
08
09
10
to
95
Additional Information
• If two or more Special I/O Units are assigned the same unit number, a "Duplicate Unit Num-
ber" major fault level Controller error is generated and the Controller will not operate.
• After correcting the unit number setting, cycle the power to the Controller.
1-22
Unit No.
0
1
2
3
4
5
6
7
8
9
10
to
95
CJ-series Analog I/O Units Operation Manual for NJ-series CPU Unit(W498)