Rockwell Automation 8520 9/Series CNC Lathe - Manual (Page 191)

Running a Program
Chapter 7
7-15
5. Key in the desired character string or sequence number to search for
and press the
[TRANSMIT]
key. The control locates an @ symbol to
the left of the block immediately before the block that automatic
execution begins from.
If this is not the block to begin execution from press either the:
{CONT} softkey to continue to search for the entered character string
or sequence number.
{TOP OF PRGRAM}
to return to the first block in the program.
{QUIT}
softkey to end either the sequence number search or the
character string search operations.
(softkey level 5)
CONT TOP OF
PRGRAM
QUIT EXIT
CAUTION: When you exit a mid-program start (search with
memory), M- and S-codes are sent to PAL. If, during normal
execution, that program activated a spindle, mid-program start
may also start it. To prevent this, your system installer can use
the $BLKSTAT flag , which indicates the control is in
mid-program start.
6. Press the {EXIT} or the {EXIT & MOVE} softkey once the program is
at the desired location.
{EXIT}
- Use this softkey if the tool is at the exact location for
execution of the searched program block. While the control searches
for your starting block it performs calculations to determine what the
absolute position of the axes should be before your selected block is
executed. If the cutting tool is not at this position when you press the
{EXIT}
softkey, the control aborts the mid-start operation. When this
occurs the control displays the message “AXIS POSITION
INCORRECT”.