Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 178

5 PARAMETER SETTINGS
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4) Default button
Select this button to automatically assign the default link devices
according to the number of installed modules.
5) Check button
Select this button to check if there are any duplicate parameter data
settings.
6) End setup button
Click this button to return to the network setting screen after
completing the data settings.
REMARKS
[Random cyclic] is for future use. An error will not occur even if it is selected, but no
processing will be performed.
MELSEC-Q
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