Calling Q Parameter Functions - HEIDENHAIN ITNC 530 User Manual

Programming notes
You can mix Q parameters and fixed numerical values within a
program.
Q parameters can be assigned numerical values between
–99 999.9999 and +99 999.9999. Internally, the TNC can calculate up
to a width of 57 bits before and 7 bits after the decimal point (32-bit
data width corresponds to a decimal value of 4 294 967 296).
Some Q parameters are always assigned the same data by
the TNC. For example, Q108 is always assigned the
current tool radius (see "Preassigned Q Parameters" on
page 568).
If you are using the parameters Q60 to Q99 in encoded
OEM cycles, define via MP7251 whether the parameters
are only to be used locally in the OEM cycles (.CYC file), or
may be used globally.

Calling Q parameter functions

When you are writing a part program, press the "Q" key (in the
numeric keypad for numerical input and axis selection, below the +/–
key). The TNC then displays the following soft keys:
Function group
Basic arithmetic (assign, add, subtract,
multiply, divide, square root)
Trigonometric functions
Function for calculating circles
If/then conditions, jumps
Other functions
Entering formulas directly
Function for machining complex
contours
HEIDENHAIN iTNC 530
Soft key Page
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