Predefined User Variables: Arithmetic Parameters (R) - Siemens SINUMERIK 840D sl Programming Manual

Note
Writing machine data
When writing an item of machine or setting data, it is important to ensure that the access
level which is active when the part program/cycle is executed permits write access and that
the data is set to take "IMMEDIATE" effect.
References
A list of the properties of all system variables appears in:
/PGA1/ Parameter Manual, System Variables
See also
Data types (Page 57)
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>]
Job Planning
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
Flexible NC programming
1.1 Variables
19