Creating Programs
4.1 I/O Allocation
4.1.1 I/O Allocation
• For analog input data and analog output data, input relays (WX) and output relays (WY) are
read and written to the control unit.
• I/O numbers do not need to be set as I/O allocation is performed automatically.
• I/O numbers vary according to installation positions.
• The allocated contents vary according to the type of units and mode. For details, refer to the
chapters 4.2 to 4.4.
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