Siemens Sinumerik 840D Operating Turning page 251

Block search
b. Search pointer
Direct entry of the program path in the "Search pointer" window.
If a search target was found it is possible to start another search run imme-
diately. This can be done many times after every successful search run.
Attention:
Pay attention to a collision-free starting position as well as accurate active
tools and other technological values. If necessary move the tool to a save
starting position. Select the target block considering the selected block
search type.
Navigation through the program blocks takes place
by using the blue cursor-keys on the keyboard.
The following functions are available in the vertical softkey bar:
5.2 Vertikal softkey bar
Display area Description
By pressing the VSK 1 "Start search" the search
run starts depending on the search modi you have
selected before. Press the VSK 1 several times,
until the the found target corresponds to the
searched program block.
By pressing the VSK 2 "Blk. sear. mode" the "Block
search mode" window opens.
Two different block search modi are selectable:
With calculation:
840D/828D SINUMERIK Operate
Without approach:
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.
With approach:
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.
Section 5
Notes