Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual page 126

During the file batch online change
The following describes the precautions on the file batch online change.
■Writing the label data
Write labels using the file batch online change only when new label data is added. When the label data is changed or deleted,
write data to the programmable controller or execute the online change (ladder block) after the data is rebuilt (reassigned).
■Falling instruction in the subroutine type FB program
When writing an FB file online, do not use falling instructions in the subroutine type FB program while SM388 (File batch
online change operation setting status) is on.
■File batch online change during execution of another function
The file batch online change cannot be executed during execution of the following functions. An error occurs at execution.
• Data logging function (when the storage location is the function memory)
• Data logging file transfer (when the storage location is the function memory)
5 WRITING DATA TO THE CPU MODULE
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5.3 Precautions