Fundamental Principles of NC Programming
2.2 Language elements of the programming language
Fundamentals
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
55
Z...
Z=AC(...)
Z=IC(...)
Axis variable
AR+=... Opening angle variable
AP=... Polar angle variable
CR=... Circle radius variable
RP=... Polar radius variable
:... Main block fixed
"fixed"
These address names are available for a specific function.
Machine manufacturer
"variable"
The machine manufacturer may assign another name to these addresses via machine data.
Modal/non-modal addresses
Modal addresses remain valid with the programmed value (in all subsequent blocks) until a
new value is programmed at the same address.
Non-modal addresses only apply in the block, in which they were programmed.
Example:
N10 G01 F500 X10
N20 X10
;Feedrate remains operative until a new feed value is entered
Addresses with axial extension
In addresses with axial extension, an axis name is inserted in square brackets after the
address. The axis name assigns the axis.
Example:
FA[U]=400
;Axis-specific feed for U axis
Extended addresses
Extended address notation enables a larger number of axes and spindles to be organized in
a system. An extended address is composed of a numeric extension or a variable identifier
enclosed in square brackets and an arithmetic expression with an "=" sign.
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