Opening Programs And Entering; Structure Of An Nc Program In Heidenhain Klartext - HEIDENHAIN TNC 320 User Manual

3
Fundamentals, file management
3.2

Opening programs and entering

3.2 Opening programs and entering

Structure of an NC program in HEIDENHAIN Klartext

A machining program consists of a series of NC blocks. The
illustration on the right shows the elements of a block.
The TNC numbers the blocks of a part program 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!
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HEIDENHAIN | TNC 320 | Conversational Programming User's Manual | 9/2016
Block
Words
Path functions
Block number