The space on the backup memory (SRAM) required depends on the settings of Number of Files, Number of Blocks, Number of Data, and Bit Length.
Only one folder can be stored in backup memory (SRAM).
The capacity of the backup memory (SRAM) for filing data depends on the type of display unit and the space used by other data. For details about backup memory (SRAM), please see the following.
2.3 About the Display Unit's Internal Data
To check the backup memory (SRAM) usage, from the [Project (F)] menu, point to [Information (I)], select [Project Information (I)], and then select [SRAM Information].
Calculation
Usage capacity per file (in bytes)
|
118 + {(34 + 2*1 X Number of Data) X Number of Blocks} |
*1 Two bytes when the data length is 16 bit, four bytes when the data length is 32 bit.
Usage capacity per folder (in bytes)
|
4 + Total of Each File Usage |
Calculation Examples
|
Items |
Description |
|
Blocks |
5 |
|
Number of Data Items |
1000 |
|
Data format (bit length) |
16 Bit |
For example, folder capacity with only 1 file
[Calculation Result]
4 + [118 + {(34 + 2 x 1,000) x 5}] = 10292 bytes (approximately 10 KB)