Correcting A Program - Siemens SINUMERIK 840D sl Universal Operating Manual

Machining the workpiece

7.5 Correcting a program

7.5 Correcting a program
As soon as a syntax error in the part program is detected by the controller, program execution
is interrupted and the syntax error is displayed in the alarm line.
Correction options
Depending on the state of the control system, you have various options of correcting the
program.
• Stop state
Only change lines that have not been executed
• Reset status
Change all lines
Note
The "program correction" function is also available for execute from external; however, when
making program changes, the NC channel must be brought into the reset state.
Precondition
A program must be selected for execution in "AUTO" mode.
Procedure
Note
When you exit the editor using the "Close" softkey, you return to the "Program manager"
operating area.
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1. The program to be corrected is in the Stop or Reset mode.
2. Press the "Prog. corr." softkey.
The program is opened in the editor.
The program preprocessing and the current block are displayed. The cur‐
rent block is also updated in the running program, but not the displayed
program section, i.e. the current block moves out of the displayed pro‐
gram section.
If a subprogram is executed, it is not opened automatically.
3. Make the necessary corrections.
4. Press the "NC Execute" softkey.
The system switches back to the "Machine" operating area and selects
"AUTO" mode.
5. Press the "CYCLE START" key to resume program execution.
Operating Manual, 07/2021, 6FC5398-6AP40-6BA4
Universal