Possible Type Conversions - Siemens Sinumerik 840D sl Programming Manual

Flexible NC programming

1.8 Possible type conversions

1.8 Possible type conversions
Function
Type conversion on assignment
The constant numeric value, the variable, or the expression assigned to a variable must be
compatible with the variable type. If this is this case, the type is automatically converted when
the value is assigned.
Possible type conversions
from
REAL
INT
BOOL
CHAR
STRING
AXIS
FRAME
Explanation
*
1)
2)
3)
4)
Note
If conversion produces a value greater than the target range, an error message is output.
If mixed types occur in an expression, type conversion is automatic. Type conversions are
also possible in synchronous actions, see Chapter "Motion-synchronous actions, implicit type
conversion".
74
to REAL INT
yes yes*
yes yes
yes yes
yes yes
– –
– –
– –
At type conversion from REAL to INT, fractional values that are >=0.5 are rounded up,
others are rounded down (cf. ROUND function).
Value <> 0 is equivalent to TRUE; value == 0 is equivalent to FALSE
If the value is in the permissible range
If only 1 character
String length 0 = >FALSE, otherwise TRUE
BOOL CHAR STRING
yes* –
1
Yes )
–
1 2)
Yes ) Yes
yes yes yes
yes yes
1)
Yes
4) 3) yes
Yes Yes
– – –
– – –
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
AXIS FRAME
– –
– –
– –
– –
– –
yes –
– yes
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