4 Machine 01.99
6FC5198-6AA60-0BP1 © Siemens AG 1999 All Rights Reserved
4-68 SINUMERIK 840C, OEM Version for Windows (BA)
4.3.5 Block search
• The machine area has been selected.
• AUTOMATIC mode has been selected.
• The control is in the reset state.
On pressing the extension key (ETC) in the AUTOMATIC or TEACH IN
basic displays, the BLOCK SEARCH softkey is displayed.
On pressing the HELP key, the softkey functions are displayed.
Switch to the search window (if the window is active, it is marked).
Press the BLOCK SEARCH softkey. The following options are displayed:
• Block search with calculation
• Block search without calculation
• Block search with calculation from the last main block
You can use the block search functions to reach a breakpoint in a program (e.g.
after a program error, tool break, etc.). This causes the program to be decoded
until the breakpoint is reached. It is not necessary to process the entire
program.
If the position at the breakpoint has been left in JOG mode (e.g. during a tool
change), you can use the JOG/handwheel or REPOS function to travel back to
the position.
• Only the functions
− Block search with calculation
− Block search with calculation from the last main block
are provided in TEACH IN mode.
• Output of auxiliary functions during block search. Auxiliary functions that
are output to the interface during block search are not displayed in the
AUTOMATIC basic display.
Preconditions
Operating
sequence
i
Block
search
Note
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