Block Search Mode - Siemens SINUMERIK 840D sl Operating Manual

Machining the workpiece
4.7 Starting machining at a specific point
Parameter
Type
Search target
4.7.7

Block search mode

Set the desired search variant in the "Search Mode" window.
The set mode is retained when the the controller is shut down. When you activate the
"Search" function after restarting the controller, the current search mode is displayed in the
title row.
Search variants
Block search mode
With calculation
- without approach
With calculation
- with approach
With calculation
- skip extcall
156
Meaning
" " search target is ignored on this level
N no. Block number
Label Jump label
Text string
Subprg. Subprogram call
Line Line number
Point in the program at which machining is to start
Meaning
It is used in order to be able to approach a target position in any
circumstance (e.g. tool change position).
The end position of the target block or the next programmed position is
approached using the type of interpolation valid in the target block. Only the
axes programmed in the target block are moved.
It is used to be able to approach the contour in any circumstance.
The end position of the block prior to the target block is found with <CYCLE
START>. The program runs in the same way as in normal program
processing.
This is used to speed-up a search with calculation when using EXTCALL
programs: EXTCALL programs are not taken into account.
Notice: Important information, e.g. modal functions, which are located in the
EXTCALL program, are not taken consideration. In this case, after the
search target has been found, the program is not able to be executed.
Information such as this should programmed in the main program.
Operating Manual, 09/2011, 6FC5398-7CP40-2BA0
Milling