336 HEIDENHAIN Technical Manual MANUALplus 620
Entering and 
changing 
parameters
In order to change machine parameters, you must open an input or selection 
field by pressing the right arrow key, the ENT key or the CHANGE VALUE soft 
key, or by double-clicking the selected parameter:
Open and close selection lists (pull-down menus) by pressing the GOTO key 
or clicking the arrow symbol. Use the arrow keys (up and down) or the mouse 
to navigate through the pull-down menu. Press the ENT key to select the 
desired value from the list.
Units of measure can be defined for numeric machine parameters. The unit of 
measure assigned to this parameter is displayed. Enter a value appropriate to 
this unit.
When editing a numerical value, you can also switch the number system. You 
can choose between decimal (DEC), hexadecimal (HEX) and binary (BIN). The 
current value entered is converted when the number system is switched.
Limit values Limit values are preset for numeric machine parameters. If you attempt to 
enter a value outside of these limits, a message is issued and the entry is not 
accepted.
Deleting 
objects
Press the DELETE soft key to delete objects or parameters from a list (an axis, 
for example).