The following shows the initialization procedure.
(1) Turn OFF the PLC ready flag.

(2) Turn ON "[Cd.2] Parameter initialization request".
    [QD75M, QD75MH, LD77MH4, QD77MS2, or QD77MS4]
    Set "1" to the buffer memory 1901. After the completion of initialization, "0" is automatically set to the buffer memory 1901.
    [LD77MH16, QD77MS16, or QD77GF16]
    Set "1" to the buffer memory 5901. After the completion of initialization, "0" is automatically set to the buffer memory 5901.

(3) Reset the PLC CPU, or turn the power OFF to ON.