Mitsubishi Electric MELSEC iQ-R Series User Manual page 17

■SD memory card life (limit on writing)
• An SD memory card has a life (a limit on the number of times for writing data). For details, refer to the following:
(Page 420 SD Memory Card Life)
■RECIPE folder
• The maximum number of recipe files that can be stored in the RECIPE folder is 256. Storing large numbers of files in the
RECIPE folder causes a longer processing time for the following operations. Delete unnecessary files.
Displaying or operating the file browser
Displaying a file list of recipe execution operation
Recipe execution operation
• Do not store any files other than recipe files in the RECIPE folder.
■Write protect switch
• Make sure that the write protect switch of an SD memory card is in the unlocked position. When the write protect switch is
in the locked position, no files can be written to the SD memory card.
Considerations for using a redundant system
■Mountable base units
• A high speed data logger module must be mounted on an extension base unit
cannot be mounted on the main base unit in a redundant system.
*1 Only the extension level 2 to 7 are available.
■Access target CPUs
• There are restrictions on accessible routes. For details, refer to the following:
(MELSEC iQ-R High Speed Data Logger Module User's Manual (Startup))
■Dedicated instructions
• When mounting a high speed data logger module to a process CPU (redundant mode), dedicated instructions cannot be
used. If a dedicated instruction is used, "Operation error (redundant function)" occurs in the process CPU (redundant
mode).
■Resetting a CPU module
• When mounting a high speed data logger module to a process CPU (redundant mode), reset CPU modules of both
systems for a function that requires resetting the CPU modules.
Considerations for the recipe function
■Recipe files
• For recipe file names, use the characters usable in file names and folder (directory) names only.
■Recipe execution operation
• Before performing the recipe execution operation, write the settings of a high speed data logger module in Configuration
Tool, then set the module operating status to "In operation". The module operating status can be checked in the "Module
Diagnostic" screen.
(Page 216 Module diagnostics)
• The recipe execution operation can be performed to the control CPU only. It cannot be performed to a CPU module on
another station.
• Do not power OFF or reset the CPU module during the recipe execution operation. The recipe file being edited may be
damaged. Power OFF or reset the CPU module after confirming the completion of the recipe execution operation.
*1
or a redundant extension base unit. It
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