Indirect Programming; Indirectly Programming Addresses - Siemens Sinumerik 840D sl Programming Manual

Flexible NC programming

1.2 Indirect programming

1.2 Indirect programming
1.2.1

Indirectly programming addresses

Function
When indirectly programming addresses, the extended address (index) is replaced by a
variable with a suitable type.
Note
It is not possible the indirectly program addresses for:
• N (block number)
• L (subprogram)
• Settable addresses
(e.g. X[1] instead of X1 is not permissible)
Syntax
<ADDRESS>[<Index>]
Significance
<ADDRESS>[...]:
<index>:
Examples
Example 1: Indirectly programming a spindle number
Direct programming:
Program code
S1=300
Indirect programming:
Program code
DEF INT SPINU=1
S[SPINU]=300
56
Fixed address with extension (index)
Index variable, e.g., spindle number, axis, ....
Comments
; Speed in rpm for the spindle number 1.
Comments
; Defining variables, type INT and value assignment.
; Speed 300 rpm for the spindle, whose number is saved in the
SPINU variable (in this example 1, the spindle with the
number 1).
Programming Manual, 02/2011, 6FC5398-2BP40-1BA0
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