B–63604EN/01
9. EDITING PROGRAMSOPERATION
569
Those blocks that are skipped do not affect the CNC. This means that the
data in the skipped blocks such as coordinates and M, S, and T codes does
not alter the CNC coordinates and modal values.
So, in the first block where execution is to be started or restarted by using
a sequence number search command, be sure to enter required M, S, and
T codes and coordinates. A block searched for by sequence number
search usually represents a point of shifting from one process to another.
When a block in the middle of a process must be searched for to restart
execution at the block, specify M, S, and T codes, G codes, coordinates,
and so forth as required from the MDI after closely checking the machine
tool and CNC states at that point.
During search operation, the following checks are made:
⋅Optional block skip
⋅P/S alarm (No. 003 to 010)
During sequence number search operation, M98Pxxxx (subprogram call)
is not executed. So an P/S alarm (No.060) is raised if an attempt is made
to search for a sequence number in a subprogram called by the program
currently selected.
O1234
:
:
M98 P5678 ;
:
:
Main program Subprogram
O5678
:
N88888
:
M99 ;
:
If an attempt is made to search for N8888 in the example above, an alarm is raised.
Alarm No. Contents
60 Command sequence number was not found in the sequence
number search.
Explanations
D Operation during Search
D Checking during search
Restrictions
D Searching in
sub–program
Alarm