HEIDENHAIN TNC 407 (280 580) User Manual - Manual (Page 343)

11-10
11 MOD Functions
TNC 425/TNC 415 B/TNC 407
11.8 Selecting the Unit of Measure
This MOD function determines whether coordinates are displayed in
millimeters (metric system) or inches.
• To select the metric unit system (e.g., X = 15.789 mm),
set the CHANGE MM/INCH function to MM.
The value is displayed with 3 digits after the decimal point.
• To select the inch system (e.g., X = 0.6216 inch),
set the CHANGE MM/INCH function to INCH.
The value is displayed with 4 digits after the decimal point.
11.9 Selecting the Programming Language for $MDI
The PROGRAM INPUT mod function lets you decide whether to program
the $MDI file in HEIDENHAIN conversational dialog or in G-codes accord-
ing to ISO.
• To program the $MDI.H file in conversational dialog,
set the PROGRAM INPUT function to HEIDENHAIN.
• To program the $MDI.I file according to ISO,
set the PROGRAM INPUT function to ISO.
11.10 Selecting the Axes for Generating L Blocks
The AXIS SELECTION input field enables you to define the current tool
position coordinates that are transferred to an L block. To generate a
separate L block, press the ACTUAL POSITION CAPTURE soft key (see
page 4-30). On the TNC 407, up to 3 coordinates can be transferred; on
the TNC 415 B and TNC 425 controls, you can transfer up to 5 coordi-
nates. The axes are selected by bit-oriented definition, similar to program-
ming the machine parameters.
AXIS SELECTION %11111 Transfer the X, Y, Z, IV, and V axes
AXIS SELECTION %01111 Transfer the X, Y, Z, and IV axes
AXIS SELECTION %00111 Transfer the X, Y, and Z axes
AXIS SELECTION %00011 Transfer the X and Y axes
AXIS SELECTION %00001 Transfer the X axis