Block Search Mode - Siemens SINUMERIK 840D sl Universal Operating Manual

Parameter
Type
Search target
7.7.7

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
Universal
Operating Manual, 07/2021, 6FC5398-6AP40-6BA4
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 ap‐
proached using the type of interpolation valid in the target block. Only the axes
programmed in the target block are moved.
Note:
If machine data 11450.1=1 is set, the rotary axes of the active swivel data
record are pre-positioned after the block search.
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 pro‐
grams: EXTCALL programs are not taken into account.
Notice: Important information, e.g. modal functions, which are located in the
EXTCALL program, are not taken into account. In this case, after the search
target has been found, the program is not able to be executed. Information
such as this should be programmed in the main program.
Machining the workpiece
7.7 Starting execution at a specific point
153