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FAQ00879 of Programmable Controllers FAQ

FAQ No. FAQ00879

Primary Contents

Question

Is it necessary to create I/O tables when using CJ1 Programmable Controllers?

Answer



There are two ways to allocate I/O with CJ1.

Automatic I/O Allocation When Power Is Turned ON

The I/O tables will be automatically created when the power is turned ON based on the information on the Units that are actually installed in Programmable Controllers.

User Allocation

The user creates the I/O tables using Programming Devices.

If a Unit connection check (using Programming Devices to verify that the Units registered in the I/O tables are actually present) or word reservations are required, the user must create the I/O tables or the user must transfer them to the CPU Unit.