sosDoubleGet will retrieve the current value of a DOUBLE object.
Input:
key : STRING
The key for the object to retrieve.
Output:
value : DOUBLE
The value of the object.
Returns: INT
0
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- The value has been retrieved.
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-1
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- Generic error.
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-10
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- Object not found.
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-11
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- Object has the wrong type.
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-12
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- Content has invalid size.
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Declaration:
FUNCTION sosDoubleGet : INT;
VAR_INPUT
key : STRING;
value : ACCESS DOUBLE;
END_VAR;
Example:
INCLUDE rtcu.inc
INCLUDE math.inc
PROGRAM test;
VAR
rc : INT;
temp : DOUBLE;
END_VAR;
BEGIN
...
rc := sosDoubleCreate(key := "config.max_temperature", value:=24.5, desc := "Largest temperature measured");
DebugFmt(message:="sosDoubleCreate=\1", v1:=rc);
rc:= sosDoubleSet(key:="config.max_temperature", value:=26.7);
DebugFmt(message:="sosDoubleSet=\1", v1:=rc);
rc:= sosDoubleGet(key:="config.max_temperature", value:=temp);
DebugFmt(message:="sosDoubleGet=\1 => " + doubleToStr(v:=temp), v1:=rc);
...
END;
END_PROGRAM;
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