Displaying A Basic Block; Display Program Level - Siemens SINUMERIK 840D sl Operating Manual

Machining the workpiece
6.4 Displaying the current program block
6.4.2

Displaying a basic block

If you want precise information about axis positions and important G functions during testing
or program execution, you can call up the basic block display. This is how you check, when
using cycles, for example, whether the machine is actually traversing.
Positions programmed by means of variables or R parameters are resolved in the basic block
display and replaced by the variable value.
You can use the basic block display both in test mode and when machining the workpiece on
the machine. All G code commands that initiate a function on the machine are displayed in the
"Basic Blocks" window for the currently active program block:
● Absolute axis positions
● G functions for the first G group
● Other modal G functions
● Other programmed addresses
● M functions
Procedure
6.4.3

Display program level

You can display the current program level during the execution of a large program with several
subprograms.
Several program run throughs
If you have programmed several program run throughs, i.e. subprograms are run through
several times one after the other by specifying the additional parameter P, then during
processing, the program runs still to be executed are displayed in the "Program Levels"
window.
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Machine manufacturer
Please observe the information provided by the machine manufacturer.
1. A program is selected for execution and has been opened in the "Ma‐
chine" operating area.
2. Press the "Basic blocks" softkey.
The "Basic Blocks" window opens.
3. Press the <SINGLE BLOCK> key if you wish to execute the program block
by block.
4. Press the <CYCLE START> key to start the program execution.
The axis positions to be approached, modal G functions, etc., are dis‐
played in the "Basic Blocks" window for the currently active program block.
5. Press the "Basic blocks" softkey once again to hide the window again.
Operating Manual, 05/2017, A5E40869190
Grinding