_INVALID_HANDLE if not available [...] _OK if succeeded
_CYCLE_ACTIVE (if second plc is [...] _CYCLE_STANDALONE (if second plc is
xEnable BOOL If [...] starts immediately, if
xEnable BOOL If [...] starts immediately, if
percent (if supported [...] .ERROR.NO_ERROR if no error
BOOL TRUE if IN is TRUE FALSE if IN is
BOOL FALSE if IN is FALSE TRUE if IN is
register (no matter if [...] ) return value: TRUE if
To if the i [...] concatenation if one of the
xUseTLS BOOL If [...] UseCert BOOL If certificate