HEIDENHAIN ITNC 530 User Manual page 552

Displaying messages on the TNC screen
You can also use the function FN16 to display any messages from the
NC program in a pop-up window on the TNC screen. This makes it
easily possible to display explanatory texts, including long texts, at any
point in the program in a way that the user has to react to it. You can
also display Q-parameter contents if the protocol description file
contains such instructions.
For the message to appear on the TNC screen, you need only enter
SCREEN: as the name of the protocol file.
96 FN16: F-PRINT TNC:\MASKE\MASKE1.A/SCREEN:
If the message has more lines than fit in the pop-up window, you can
use the arrow keys to page in the window.
To close the pop-up window, press the CE key. To close the window,
program the following NC block:
96 FN16: F-PRINT TNC:\MASKE\MASKE1.A/SCLR:
All the previously described conventions apply for the
protocol description file.
If you output to the screen more than one text in the
program, the TNC appends all texts to the end of the text
already displayed. To display each text individually on the
screen, program the function M_CLOSE at the end of the
protocol description file.
552 11 Programming: Q Parameters