Haas Automation VF Series, Control Book, Page: 18 / 127

11
January 2004
All of the changes made during BACKGROUND EDIT are saved in a buffer storage area until the running
program stops. This means that you can edit the program that is running, or any of its subprograms, and those
changes will not go into affect until the running program ends with an M30 or RESET.
The first time you enter in to BACKGROUND EDIT with a program number, you will either, get the message
PROG EXISTS if the program is already in memory or NEW PROGRAM if it does not. The NEW PROGRAM
message means that the program number that was entered in does not already exist and a new program is
being created and will be initially empty of any program commands. In either case, you will then be able to edit
that program. The second time you select a program for BG EDIT without stopping the running program, you
will get the message SECOND EDIT.
When you are in BACKGROUND EDIT and the running program finishes, the control will stay in BG Edit and
you will not be able to cycle the program again until you exit by pressing F4 or RESET. If you need to continue
editing your program, you must select it in BG EDIT after you cycle the program again or go to the LIST PROG
Display and select program to display in EDIT mode.
Selecting any other Display or pressing F4 will exit you from BACKGROUND EDIT.
BACKGROUND EDIT is not available from MDI or from DNC operating modes.
D Block Editing in Background Edit - When a program is running in the MEM mode and in the program
display, you can copy a line or block of lines in BG Edit to copy, move, or delete in a program on BG Edit.
Scroll to and select the first line to block edit by pressing F1 . Scroll to the last line to select in a program, and
press F2 or WRITE/ENTER to block select it. Cursor onto the block you want to copy after the selected block
to be placed and press INSERT . Or Cursor onto where you want to move the selected block and press ALTER .
Or press DELETE to erase a block in a BG Edit program.