Rockwell Automation 8520-MUM 9/Series CNC Mill Operation and Programming Manual Documentation Set - Manual (Page 194)

Running a Program
Chapter 7
Running a Program
Chapter 7
7-12
When using the N search, O search, or STRING search features, first
key in the desired N number, O number, or character string to search
for. After it has been keyed in, press the [TRANSMIT] key to start
the search. Press the {FORWRD} or {REVRSE} softkeys to search
for the entered value in the forward or reverse direction. Press the
{TOP OF PRGRAM} softkey to return to the top of the program (the
beginning of the first block). Press the {EXIT} softkey when the
desired block is found. The selected block is the next block for
automatic execution.
If no number is keyed in for an N or O search, the control simply
searches for the next N or O word in the program.
When you press the {NEXT PRGRAM} softkey, the control first
searches for a valid program end code (see setting communications,
chapter 9). After it finds the program end code, it advances to the
program start code of the next program. If the current program is the
last program on the tape, the message “SERIAL
COMMUNICATION ERROR #5” appears on the screen indicating a
time-out error.
Important: If performing a STRING search, program execution begins at
the beginning of the block that contains the desired character string. This
is not necessarily the location of the string in the program block.
CAUTION: It may be necessary to position the cutting tool at a
location that allows this block to execute without damaging the
workpiece or cutting tool. This may be done through a manual
operation or through MDI.