Programming Variables; Changing A Cycle Call - Siemens SINUMERIK 840D sl Turning Operating Manual

Creating a ShopTurn program
9.15 Calling technology functions
Commissioning Manual SINUMERIK Operate / SINUMERIK 840D sl
9.15.4

Programming variables

In principle, variables or expressions can also be used in the input fields of the screen forms
instead of specific numeric values. In this way, programs can be created very flexibly.
Input of variables
Please note the following points when using variables:
● Values of variables and expressions are not checked since the values are not known at the
time of programming.
● Variables and expressions cannot be used in fields in which a text is expected (e.g. tool
name).
An exception is the "Engraving" function, in which you can assign the desired text in the
text field via a variable as "Variable text".
● Selection fields generally cannot be programmed with variables.
Examples
VAR_A
VAR_A+2*VAR_B
SIN(VAR_C)
9.15.5

Changing a cycle call

You have called the desired cycle via softkey in the program editor, entered the parameters and
confirmed with "Accept".
Procedure
320
1. Select the desired cycle call and press the <Cursor right> key.
The associated input screen of the selected cycle call is opened.
- OR -
Press the <SHIFT + INSERT> key combination.
This starts the edit mode for this cycle call and you can edit it like a normal
NC block. This means that it is possible to generate an empty block
before the cycle is called. For instance, to insert something before a cycle
that is located at the beginning of the program.
Note: In edit mode, the cycle call can be changed in such a way that it can
no longer be recompiled in the parameter screen.
Operating Manual, 06/2019, A5E44903486B AB
Turning