■
Precautions for programming
● Also refer to section "19.9 Common Precautions for SD Memory Card Access Instructions".
● The SD memory card access instruction active flag (SR3A) turns ON after the execution
condition has turned ON until the completion of the execution of the instruction. During this
time other SD memory card access instructions cannot be executed.
● The CREN instruction cannot be executed when the SD memory card access instruction is
being executed.
● When the full path is specified for the file name and folder name after renaming, abnormality
is detected and operation abends if it does not match the folder name before renaming (all
path names).
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Flag operations
Name Description
SD memory card access instruction
active (SR3A)
Turns ON when instruction execution starts. Turns OFF when
instruction execution is complete.
SD memory card access instruction
execution done (SR3B)
Turns OFF when instruction execution starts. Turns ON when
instruction execution is complete.
SD memory card access instruction
execution result (SR3C)
Indicates the execution results when instruction execution is complete.
Normal end = 0, abnormal end = 1
SR7, SR8 (ER)
To be set in case of out-of-range values in indirect access (index
modification).
18.10 CREN (File Rename)
WUME-FP7CPUPGR-12 18-49
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