K1: Mode group, channel, program operation, reset response
9.7 Block search
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
515
7. With the PLC signal:
DB21... DB32.6 (last action block active)
the PLC starts ASUB "BLOCK_SEARCH_END" via FC9.
References:
/FB1/ Function Manual, Basic Function, Basic PLC Program (P3)
8. After the end of the ASUB (can be evaluated, e.g., via M function
M90
to be defined, see example for block
N1110
), the PLC sets signal:
DB21, ... DBX1.6 (PLC action ended).
Alternatively, the VDI interface signal:
DB21-DB30 DBB318 Bit 0 (ASUB is stopped)
can also be scanned.
As a result, Alarm 10208 is displayed, i.e., other actions can now be performed by the operator.
9. Manual operator actions (JOG, JOGREPOS, overstoring)
10.Continue part program with NC Start.
Figure 9-4
Approach movement for search to block end point (target block N220)
Type 2 block search with calculation at contour
Example with automatic tool change after block search with active tool management:
Note
"Search to contour" with target block
N220
would generate an approach movement to the
tool change point (start point of the target block).
1. to 3.
Same as example for Type 4 block search
4.
Search to contour, block number
N260
5. to 10.
Same as example for Type 4 block search
Y
X
100
200
0
300
100
200
300
400
Approach point
(170,30)
Tool
change point
(450,300)
Approach movement
Target block N220
