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11 DATA LOGGING FUNCTION
11.9 Data Logging File Transfer to Data Memory
11.9 Data Logging File Transfer to Data Memory
When the function memory
*1
is specified for the data storage destination memory without setting of the file transfer, the data
is transferred from the function memory to the data memory at the logging completion or stop (including when an error occurs)
as shown below.
*1 For the CPU modules that can use the function memory, refer to the availability of storage location. ( Page 183 Availability)
Behavior when the free space in the data memory is full
When multiple data logging files exist in the function memory and the free space in the data memory is full by only transferring
some of the files, an error occurs and the files remaining are not transferred. In this case, files that have not been transferred
are not deleted from the function memory.
Starting data logging during the data transfer to the data memory
The data logging cannot be started during the data transfer to the data memory. An error occurs when starting the data
logging. ( Page 219 Starting data logging during the data transfer to the data memory)
An error during the data transfer to the data memory is stored in SD1217 (Data logging file transfer error cause). ( Page
862 Data logging function)
(1) At the logging completion or stop (including when an error occurs), the data is transferred from the function memory to the data memory.
When data logging is suspended or waiting for RUN without collection, the data is not transferred to the data memory.
(2) Data in the function memory is automatically deleted after completion of the transfer.
(3) The data logging files transferred to the data memory can be read by engineering tool or displayed by GX LogViewer.
(1)
(2)
(3)
First collected data
Second collected data
Device/
label area
Setting 1
Internal buffer
Function memory
First collected data
Second collected data
Setting 1
First collected data
Second collected data
Setting 1
Data collection
of the specified
device/label
Inside the CPU module
Data memory
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