first time SCL, how to ref. REAL in DB

Hello:
I've just started (literally) to use SCL and I'm making a small SCL OB and trying to get access to a REAL in a data block.
Do I have to use DWORD_TO_REAL conversion?
Thanks
Mike

No you do not have to use it, if you do not want to convert a doubledword (double integer) to real(floating point).

Hello, mspath;
Type conversions (type-castings)are only necessary if you are accessing a variable that has been defined as a different type, origibally.
If you define a DB-variable of type REAL, you access it directly as a REAL.
Open your DBx, from Simatic Manager, S7 Program, Blocks. you will bw shown all defined variabes for that DB, with their names, addresses and data type. You can change the data type of these variables in the declaration view of the DB, and use them as required in your programs (be it through SCL, STL, Ladder....)

Hope this helps,
Daniel Chartier

access to DB reals in SCL

Thanks for the reply fellas:
I guess that I'm asking how to you reference REALs in an SCL program that are sitting inside the global DBs.
for example, I tried:

FUNCTION_BLOCK FB5
VAR_TEMP
//reserved
//info: ARRAY[0..19] OF BYTE;
tempCor, diaCubed, capShift : REAL;
dwType : DWORD;

END_VAR

tempCor := DB1.DBD0 // try to accesss the first real and get
// Invalid Data Type compile error
END_FUNCTION_BLOCK

Hello mspath;
How is the variable DB1.DBD0 defined?
Daniel Chartier

You must specife the dbXX as symbolic name when you compile the program.'

had to use all symbolic name

hey all:
Thanks for the help. I was only using the symbolic name for the DB side (ie. SymbolName.DBD0), had to use SymbolicName.ParamName