Block Format - Siemens SINUMERIK User Manual

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Block format

Functionality
A block should contain all data required to execute a machining step.
Generally, a block consists of several words and is always completed with the end-of-block character " L " (Linefeed). When
F
writing a block, this character is automatically generated when pressing the linefeed key on an externally connected
keyboard or pressing the following key on the PPU:
See the following block structure diagram:
Word order
If there are several instructions in a block, the following order is recommended:
N... G... X... Z... F... S... T... D... M... H...
Note regarding block numbers
First select the block numbers in steps of 5 or 10. Thus, you can later insert blocks and nevertheless observe the ascending
order of block numbers.
Block skip
Blocks of a program, which are to be executed not with each program run, can be marked by a slash / in front of the block
number.
The block skip itself is activated via Operation (program control: "SKP") or by the programmable controller (signal). A section
can be skipped by several blocks in succession using " / ".
If a block must be skipped during program execution, all program blocks marked with " / " are not executed. All instructions
contained in the blocks concerned will not be considered. The program is continued with the next block without marking.
Comment, remark
The instructions in the blocks of a program can be explained using comments (remarks). A comment always starts with a
semicolon " ; " and ends with end-of-block.
Comments are displayed together with the contents of the remaining block in the current block display.
Messages
Messages are programmed in a separate block. A message is displayed in a special field and remains active until a block
with a new message is executed or until the end of the program is reached. Up to 65 characters can be displayed in
message texts.
A message without message text cancels a previous message.
MSG ("THIS IS THE MESSAGE TEXT")
Programming and Operating Manual (Turning)
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01/2017