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

Creating a G code program
8.9 Calling technology cycles
If a parameter is assigned an illegal value, this is indicated in the input screen and is designated
as follows:
● The entry field has a colored background (background color, pink).
● A note is displayed in the comment line.
● If the parameter input field is selected using the cursor, the not is also displayed as tooltip.
The programming can only be completed after the incorrect value has been corrected.
Faulty parameter values are also monitored with alarms during the cycle runtime.
8.9.4

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)
8.9.5

Changing a cycle call

You have called the desired cycle via softkey in the program editor, entered the parameters and
confirmed with "Accept".
Procedure
278
1. Select the desired cycle call and press the <Cursor right> key.
The associated input screen of the selected cycle call is opened.
- OR -
Operating Manual, 06/2019, A5E44903486B AB
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