Siemens SINUMERIK 840Di sl Programming Manual page 50

Fundamental Principles of NC Programming
2.2 Language elements of the programming language
Digits
1, 2, 3, 4, 5, 6, 7, 8, 9
Special characters
%
(
)
[
]
<
>
:
=
/
*
+
-
"
'
$
_
?
!
.
,
;
&
LF
Tab character
space character
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.
50
Program start character (used only for writing programs on an external PC)
For bracketing parameters or expressions
For bracketing parameters or expressions
For bracketing addresses or indexes
For bracketing addresses or indexes
Less than
Greater than
Main block, end of label, chain operator
Assignment, part of equation
Division, block suppression
Multiplication
Addition
Subtraction, minus sign
Double quotation marks, identifier for character string
Single quotation marks, identifier for special numerical values: hexadecimal,
binary
System variable identifiers
Underscore, belonging to letters
Reserved
Reserved
Decimal point
Comma, parameter separator
Comment start
Format character, same effect as space character
End of block
Separator
Separator (blank)
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
Fundamentals