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GFK-0467K Chapter 4 Series 90-30/20/Micro Instructions Set 4-99
4
—>DINT (REAL)
The Convert to Double Precision Signed Integer function is used to output the double precision
signed integer equivalent of real data. The original data is not changed by this function.
Note
The REAL data type is only available on 350 and 360 series CPUs, Release 9 or
later, or on all releases of CPU352.
When the function receives power flow, it performs the conversion, making the result available via
output Q. The function always passes power flow when power is received, unless the real value is
out of range.
_____
| |
(enable) —| REAL|— (ok)
| |
| TO_ |
| |
| DINT|
(value to be converted) —|IN Q|— (output parameter Q)
|_____|
Parameters:
Parameter Description
enable When the function is enabled, the conversion is performed.
IN IN contains a reference for the value to be converted to double precision integer.
ok The ok output is energized whenever enable is energized, unless the real value is out of
range.
Q Q contains the double precision signed integer form of the original value in IN.
Note
It is possible for a loss of precision to occur when converting from REAL to
DINT since the REAL has 24 significant bits.