01.91 9 Examples
9.2.27 FB 189 Delete last cutting edge
9.2.27 FB 189 LS-LOESCH
Delete last cutting edge
Description
This function block deletes the last cutting edge for the selected tool and, if necessary,
initializes the display parameters with the data of the last available cutting edge. The last
cutting edge of a tool can be deleted only if the tool has more than one cutting edge.
If the last cutting edge can be deleted, the D No. is declared unassigned via the TO memory
management and the setup data of the tool updated. If a cutting edge that was displayed on
the NC screen is deleted, the D No. of the new last cutting edge is entered into the R para-
meter R999 for indirect addressing, the display parameters initialized with the data for this
cutting edge and the block function terminated.
In the case of an error - deletion of the last cutting edge is not permissible - a message
appears on the NC screen and the block function is terminated.
Block data
Lib. No. : 10050
FBs to be loaded : FB 189, FB 130
DBs to be loaded : None
Type of FB call : Conditional in FB 160
DBs to be input : None
Error messages : 25: Number of offsets per cutting edge> 1
29: Only one cutting edge is available
Block call FB 189
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FB LS-LOESCH
DB 145 ZW FEHL DB 40, DW 50
DW 38...DW 40
DB 146 BDAT FKT DB 40, D49.15
DW 48, DW 55
Signal descriptions
ZW Status words
BDAT Description of display data
Display data for the loading display
FEHL Error word
The error number is stored as the number of the interactive text as shown above.
FKT Function number is valid
Interface for interactive text display
© Siemens AG 1991 All Rights Reserved 6FC5 197-0AA40-1BP1 9–131
SINUMERIK 840/880 (PJ)
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