Block-By-Block Teach-In; Block By Block Teach-In - Siemens SINUMERIK 840C Operator's Manual

01.99
4.2.5.7

Block-by-block teach-in

Preconditions
Block struc-
ture se ttings
© Siemens AG 1999 All Rights Reserved
SINUMERIK 840C, OEM Version for Windows (BA)
• An MDA program can only be edited and started without restriction after a
RESET.
• MDA 1 stands for the MDA program in channel 1, MDA 2 for channel 2
etc.
Note
The MDA mode can be used to test part program blocks and save them in the
teach-in program. This makes it possible to start program blocks without
switching modes. The teach-in program can only be edited in edit mode.
Edit mode and the extended overstore function are interlocked. It is not
possible to overstore if MDA mode has not been exited correctly and it is not
possible to call up MDA mode if the extended overstore function has not been
completed.
"Block by block teach-in" only functions in the NC stop state. If a new part
program is opened, for example, you must first start it using NC start. Only
then can you switch to block by block teach in (otherwise, the message "Edit
error, no edit allowance" is displayed).
In "Block by block teach-in" you can start the program and only modify or
extend it at breakpoints. The advance decoding is switched off at the
breakpoint.
You can advance to a breakpoint by:
− RESET (program start)
− Traversing until stop at target block (BRK)
− Decode single block (DSB)
− Program step (PST)
− Block search with calculation and subsequent processing of at least
one block in decode single block mode.
− Program end without M02/M30/M17 (TEACH IN and MDA programs
stop even without end of program character)
Note
Teach-in is only possible at program breakpoints that do not require advanced
decoding (no tool radius compensation, no contour definition), otherwise
editing is not permitted and the handwheel is not enabled.
The following modifications are possible at the breakpoint:
− Delete following block
− Edit following block
6FC5198-6AA60-0BP1
4 Machine
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