scalcout Records

Note: The scalcout record is part of the calc module of the synApps package. Device support for scalcout records is only available for calc module release 2-4 or higher. You also need the synApps modules genSub and sscan to build calc.

Up to release 2-6 (synApps release 5.1), the scalcout record needs a fix. In sCalcout.c at the end of init_record add before the final return(0):

        if(pscalcoutDSET->init_record ) {
            return (*pscalcoutDSET->init_record)(pcalc);

Normal Operation

Different record fields are used for output and input. The variable x stands for the written or read value.

DOUBLE format (e.g. %f):
Output: x=OVAL
Input: VAL=x
Note that the record calculates OVAL from CALC or OCAL depending on DOPT.
LONG format (e.g. %i):
Output: x=int(OVAL)
Input: VAL=x
ENUM format (e.g. %{):
Output: x=int(OVAL)
Input: VAL=x
STRING format (e.g. %s):
Output: x=OSV
Input: SVAL=x

For scalcout records, it is probably more useful to access fields A to L and AA to LL directly (e.g. "%(A)f" or "%(BB)s"). However, even if OVAL is not used, it is calculated by the record. Thus, CALC must always contain a valid expression (e.g. "0").


During initialization, the @init handler is executed, if present. All format converters work like in normal operation.