Mitsubishi Electric MELSEC iQ-R-R00CPU - Internal Buffer

188
11 DATA LOGGING FUNCTION
11.6 Steps Until the Collected Data Is Saved
Internal buffer
The internal buffer is a system area used to temporarily store collected data.
The collected data is temporarily stored in the internal buffer and stored in the specified data storage destination memory at
the time of a file save operation.
Internal buffer capacity setting
Set the capacity of the area (internal buffer) used by the system to temporarily store the results of data logging and memory
dump processing. The capacity can be set individually for each data logging setting number (1 to 10).
[CPU Parameter]  [Memory/Device Setting]  [Internal Buffer Capacity Setting]
For trigger logging, increasing the internal buffer capacity allows an increase in the number of collected data before trigger
and also helps to prevent processing overflow. If the free space in the internal buffer is still insufficient after increasing the
internal buffer capacity, use the following workarounds:
• Increase the data collection interval or timing.
• Reduce the number of data records to be collected.
• Lower the frequency of file switching.
Window
• This function cannot be used in the R00CPU.
RnCPU
RnENCPU
RnSFCPU RnSFCPU RnPSFCPU RnPSFCPU RnPCPURnPCPU
(Standard) (Safety)(Standard) (Safety)
(Redundant) (Process)