Panasonic FP7 Series Command Reference Manual page 1135

Name
SR3B (SD memory card access
instruction execution complete)
SR3C (SD memory card access
instruction execution result)
SR7, SR8 (ER)
WUME-FP7CPUPGR-12
18.8 CPR (ASCII Data Write to File)
Description
Turns OFF when instruction execution starts. Turns ON when
instruction execution is complete.
Indicates the execution results when instruction execution is
complete. Normal end = 0, abnormal end = 1
To be set in case of out-of-range values in indirect access (index
modification).
To be set when the character string specified by [S] exceeds 4096
characters.
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