Flexible NC programming
1.1 Variables
Job planning
Programming Manual, 07/2010, 6FC5398-2BP40-0BA0
19
1.1.3 Predefined user variables: Arithmetic parameters (R)
Function
Arithmetic parameters or R-parameters are predefined user variables with the designation R,
defined as an array of the
REAL data type. For historical reasons, notation both with array
index, e.g.
R[10], and without array index, e.g. R10, is permitted for R-parameters.
When using synchronized actions, the $ sign must be included as a prefix, e.g.
$R10.
Syntax
When used as a preprocessing variable:
R<n>
R[<expression>]
When used as a main run variable:
$R<n>
$R[<expression>]
Significance
R: Identifier when used as a preprocessing variable, e.g. in the part program
$R: Identifier when used as a main run variable, e.g. in synchronized actions
Type: REAL
Range of values: For a non-exponential notation:
± (0.000 0001 to 9999 9999)
Note:
A maximum of 8 decimal places are permitted.
For an exponential notation:
± (1*10
-300
to 1*10
+300
)
Note:
• Notation: <Mantisse>EX<exponent> e.g. 8.2EX-3
• A maximum of 10 characters are permitted including
sign and decimal point.
Number of the R-parameter
Type: INT
<n>:
Range of values: 0 - MAX_INDEX
Note
MAX_INDEX is calculated from the parameterized
number of R-parameters: MAX_INDEX =
(MD28050 $MN_MM_NUM_R_PARAM) - 1
<expression>: Array index
Any expression can be used as an array index, as long as the result of the
expression can be converted into the
INT data type (INT, REAL, BOOL, CHAR).
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