The 'DataGetAiYear' function returns the AI tag data stored in file.
double DataGetAiYear(char *tag, int data_type, int year);
Note : Because this function loads the data from a file, it may take a long time to excute this function. If you use this function much, the execution speed of LocalMain program slows down. Therefore, it is better to use this function only when it is absolutely necessary.
Parameters
string tag : AI tag name.
int data_type : Data type that you want to load (0 = Average Value, 1 = Minimum Value, 2 = Maximum Value, 3 = Integration Value, 4 = Maximum Value of the year - Mxaimum Value of the previous year)
int year : Year
Return Value
Tag data of the specified day
Example1
@DataGetAiYear("AI_0000", 0, 1999);
Description :
Example2
@DataGetAiYear("AI_0000", 1, 1999);
Description : The 'AI_0000' minimum value of 1999 is loaded.
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