Siemens SINUMERIK 840DE

Fundamental Principles of NC Programming
2.2 Language elements of the programming language
Fundamentals
2-4 Programming Manual, 10.2004 Edition, 6FC5 298-7AB00-0BP1
LF End of block
Tab character Separator
space character Separator (blank)
Note
Non-printable special characters are treated like blanks.
Words
In the same way as our language, NC programs are made up of blocks and each block is
made up of words.
A word in the "NC language" consists of an address character and a digit or sequence of
digits representing an arithmetic value.
$GGUHVV
1XPEHUVWULQJ
6HW
:RUG
$GGUHVV
$GGUHVV
1XPEHUVWULQJ
1XPEHUVWULQJ
; 6
*
:RUG
:RUG
The address character of the word is usually a letter. The sequence of digits can contain a
leading sign and decimal point. The leading sign always appears between the address letter
and the sequence of digits. The positive leading sign (+) does not have to be specified.
Blocks and block format
An NC program consists of individual blocks. A block generally consists of (several) words.
A block should contain all the data required for performing an operation step and is
terminated with the character "L
F
" (LINE FEED = new line).