
10.EDITING PROGRAMS OPERATION B-63944EN/02
- 1108 -
Explanation
- Operation during Search
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 NC states at that point.
- Checking during search
During search operation, the following checks are made:
• Optional block skip
Limitation
- Searching in sub-program
During sequence number search operation, M98Pxxxx (subprogram
call) is not executed. So an alarm PS0060 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 occurs.
Fig. 10.5 (a)