HEIDENHAIN TNC 640, User Manual, Page: 389 / 948

Programming Q Parameters | Checking and changing Q parameters
10
HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
389
You can have Q parameters also displayed in the additional status
display in all operating modes (except
Programming
mode).
If you are in a program run, interrupt it if required
(e.g. by pressing the
NC-STOPP
key and the
INTERNAL STOP
soft key), or stop the test run
Call the soft key row for screen layout
Select the layout option for the additional status
display
In the right half of the screen, the control shows
the
Overview
status form.
Press the
STATUS OF Q PARAM.
soft key
Press the
Q PARAMETER LIST
soft key.
The control opens a pop-up window.
For each parameter type (Q, QL, QR, QS), define
the parameter numbers you wish to control.
Separate single Q parameters with a comma,
and connect sequential Q parameters with a
hyphen, e.g. 1,3,200-208. The input range per
parameter type is 132 characters
The display in the
QPARA
tab always contains eight
decimal places. The result of Q1 = COS 89.999 is
shown by the control as 0.00001745, for example.
Very large or very small values are displayed by
the control in exponential notation. The result of
Q1 = COS 89.999 * 0.001 is shown by the control as
+1.74532925e-08, whereby e-08 corresponds to the
factor of 10
-8 .