Opening Programs And Entering; Organization Of An Nc Program In Heidenhain Conversational Format - HEIDENHAIN TNC 320 User Manual

3.2

Opening programs and entering

Organization of an NC program in HEIDENHAIN
Conversational format
A part program consists of a series of program blocks. The figure at
right illustrates the elements of a block.
The TNC numbers the blocks in ascending sequence.
The first block of a program is identified by BEGIN PGM, the
program name and the active unit of measure.
The subsequent blocks contain information on:
The workpiece blank
Tool calls
Approaching a safe position
Feed rates and spindle speeds, as well as
Path contours, cycles and other functions
The last block of a program is identified by END PGM the program
name and the active unit of measure.
After each tool call, HEIDENHAIN recommends
always traversing to a safe position from which the
TNC can position the tool for machining without
causing a collision!
TNC 320 | User's Manual
HEIDENHAIN Conversational Programming | 3/2014
Opening programs and entering
Block
Path functions
Block number
3
3.2
Words
87