ProSoft Technology PS-QS-1x10-0781 - Manual (Page 43)

FieldServer Configuration Manual Page 43 of 90
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5.7 Loading Data_Array Values from the FieldServer’s Non-Volatile Memory
If the value in the Data Array changes, the FieldServer can be configured to save this changed value to its Non-
Volatile Memory up to 3 times a minute using the DA_Function_After_Store Parameter. On startup the value will
be loaded from the Non-Volatile Memory into the Data Array. This value will only be stored 3 times a minute, so if
more writes than that are done, the values will be stored in the Data Array, but not to the Non-Volatile Memory.
Storing this value has performance impacts, so care must be taken to store this value only if needed.
There is a limit to the number of values that can be stored from a single data array:
UINT32: 9
FLOAT: 9
SINT32: 9
UINT16: 19
SINT16: 19
BYTE: 39
Example
Data_Arrays
Data_Array_Name , Data_Format , Data_Array_Length , DA_Function_After_Store
DA_NV_UINT32
, UINT32 , 1 , Non_Volatile