Errors Generated During Data Logging; Special Relay And Special Register Used By The Data Logging Function - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

■Header size of data logging (DCSn)
Binary file output format: Refer to the header. ( Page 955 Binary file output format)
Unicode text file format: Refer to the file information row to device comment row. ( Page 950 Unicode text file output type)
■Number of file switching times for the data logging per year (DCNn)
Calculate this number with an estimated number according to the save setting of the data logging and system operations. For
example, when 1000 records are set in "Number of records" of "File switching timing" in the save setting and "Each scanning
cycle" is specified for "Sampling interval" in the sampling setting, the time interval of the file switching is obtained by
multiplying the scan time by 1000. Therefore, the number of file switching times for the data logging per year is obtained by
the following formula: 60  60  24  365  (Scan time (second)  1000)
11.14

Errors Generated During Data Logging

No diagnostic error occurs if an error occurs during data logging, the SM applicable to the special relay (data logging error)
setting No. turns on, and the error cause is stored in the SD applicable to the special register (data logging error cause)
setting No.
11.15
Special Relay and Special Register Used by the
Data Logging Function
For details on the special relay and special register areas used by the data logging function, refer to the following:
• Special relay: Special relay areas relating to the data logging function (Page 820 Data logging function)
• Special register: Special register areas relating to the data logging function ( Page 862 Data logging function)
11 DATA LOGGING FUNCTION
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11.14 Errors Generated During Data Logging