HEIDENHAIN TNC 640, User Manual, Page: 383 / 948

Programming Q Parameters | Describing contours with mathematical functions
10
HEIDENHAIN | TNC 640 | Conversational Programming User's Manual | 10/2017
383
Example 3 – Reset Q parameters
Example
16 FN 0: Q5 SET UNDEFINED
17 FN 0: Q1 = Q5
Select the Q parameter function: Press the
Q
key
To select the mathematical functions, press the
BASIC ARITHM.
soft key.
Select the ASSIGN Q parameter function: Press
the
FN0 X = Y
soft key
PARAMETER NUMBER FOR RESULT?
Enter
5
(the number of the Q parameter) and
confirm with the
ENT
key
1. VALUE OR PARAMETER?
Press
SET UNDEFINED
The
FN 0
function also supports transfer of the value
Undefined
. If you wish to transfer the undefined Q
parameter without
FN 0
, the control shows the error
message
Invalid value
.