Siemens SINUMERIK 840D sl Programming Manual page 20

Flexible NC programming
1.1 Variables
Significance
R:
$R:
<n>:
<expression>: Array index
20
Identifier when used as a preprocessing variable, e.g. in the part
program
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
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
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
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).
to 1*10 )
-300 +300
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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