Omron trajexia CJ1W-MCH72 Operation Manual page 63

Installation
!Caution
Note
Note
Note
2-3-2-2 Creating an I/O table
52
Do not damage the unit number selector switch.
The factory setting of the unit number selector switch is 0.
3 Turn on the power supply to the PLC system.
The unit reads the unit number during the initialization after a power up. It does not read
the unit number after a software reset. Thus, the power must always be turned off
before the unit number is set.
If the unit number is set for the first time, or if the unit number is changed, an I/O table
must be created for the PLC system.
The I/O table identifies the units connected to the PLC and allocates I/O to
these units. The I/O table is stored in the PLC CPU. It is loaded at start-up.
If the configuration of a unit connected to the PLC is changed, the I/O table
must be created again to register the units to the CPU.
To create the I/O table, connect a programming device (such as a
programming console or the CX-Programmer software) to the PLC. The
following programming console can be used:
• Model number: C2090H-PRO27-E
• Key sheet (required): CS1W-KS001-E
• Recommended cable (required):
- CS1W-CN224 (2 m)
- CS1W-CN624 (6 m)
For CX-Programmer, refer to the CX-Programmer User Manual.
Section 2-3