Bridgeport Heidenhain CNC Mill
Programming & Operating Instructions

Chapter 6
Editing at the Console

Entering the Edit mode

Press the EDIT key

• The EDIT key is located in the group of keys below the numeric keypad.  The EDIT key is the the right most key in the upper row of keys.

Accessing a program for editing

Press the PGM NR (program number) key

• The PGM NR key is located in the group of keys to the left of the numeric keypad.   The PGM NR  key is the the left most key in the upper row of keys.
  
• Pressing this key will display all programs resident in the Heidenhain's memory using two numbers separated by a slash.  The first number is the program's number; the second number is the program's length in blocks.

There are two ways to chose a particular program:

1. Use the cursor keys to align the cursor over the desired program number.
      or
2. Enter the number of the desired program using the numeric key pad

Press the ENT key to select the program.

Program selection can be aborted by pressing the NO ENT key.

Editing a statement

Use the up/down cursor  keys to align the cursor with the desired block to be edited.

Use the right/left cursor keys to align the cursor over the desired parameter.

Use the numeric keypad to re-enter the data in the parameter highlighted by the cursor.

D. Press the EOB key to close the block.

Inserting a statement

Insertions are made BEHIND the active block.

Use the cursor keys to align the cursor with the block behind which the statement is to be inserted.

Enter the block in the normal manner and close the block be pressing the EOB key.

Deleting a statement

Use the cursor keys to align the cursor with the desired block to be deleted.

Press the DB delete block key and the block will disappear. Following blocks will be moved up one notch in the memory.

Program protection

To "write protect" a program so it cannot be altered by the operator:

1. Press the EDIT key
2. Press GOTO key, 0 (on the numeric keypad), then the ENT key.
   
3. Use the right cursor key to move the cursor past the "INCH" (or "MM").
   
4. When prompted by the controller, respond by pressing the ENT key to enable program protection or the NO ENT key to abort.

Unprotecting a program

Note
This procedure should only be done by the instructor
as the chances of screwing up the controller are quite high.

1. Load the program into the EDIT memory .
   
2. Repeatedly press the MOD key (about 18 times) until the "CODE =" prompt is displayed.
   
3. Using the numeric key pad, enter  8 6 3 5 7  and press the ENT   key.