Arithmetic Parameters, Lud And Plc Variables; Arithmetic Parameter R - Siemens SINUMERIK 802D sl Programming And Operating Manual

3.9

Arithmetic parameters, LUD and PLC variables

3.9.1

Arithmetic parameter R

Functionality
The arithmetic parameters are used if an NC program is not only to be valid for values as-
signed once, or if you must calculate values. The required values can be set or calculated by
the control system during program execution.
The arithmetic parameter values can also be set by operator inputs. If values have been as-
signed to the arithmetic parameters, they can be assigned to other variable-setting NC ad-
dresses in the program.
Programming
R0=... to R299=...
R[R0]=...
X=R0
Value assignments
You can assign values in the following range to the R parameters:
± (0.000 0001 ... 9999 9999) (8 decimal places and sign and decimal point).
The decimal point can be omitted for integer values. A plus sign can always be omitted.
Example:
R0=3.5678 R1=-37.3 R2=2 R3=-7 R4=-45678.123
Use the exponential notation to assign an extended range of numbers:
± ( 10
The value of the exponent is written after the EX characters; maximum total number of char-
acters: 10 (including the leading sign and decimal point)
Value range of EX: -300 to +300
Example:
R0=-0.1EX-5
R1=1.874EX8
Remark: There can be several assignments in one block incl. assignments of arithmetic ex-
pressions.
Grinding
Programming and Operating manual, 06/2006, 6FC5398-4CP10-0BA0
; assign values to the arithmetic parameters
;Indirect programming: Assign a value to the arithmetic pa-
rameter R, whose
; number can be found, e.g. in R0
; Assign arithmetic parameters to the NC addresses, e.g. for
the X axis
... 10 ).
-300 +300
;Meaning: R0 = -0.000 001
;Meaning: R1 = 187 400 000
3.9 Arithmetic parameters, LUD and PLC variables
Programming
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