HEIDENHAIN TNC 320 User Manual page 297

Compact contouring control

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Operating sequence

1 The TNC executes the part program up to calling a subprogram,

2 The subprogram is then executed from beginning to end, LBL 0.

3 The TNC then resumes the part program from the block after

the subprogram call CALL LBL

Programming notes

A main program can contain any number of subprograms

You can call subprograms in any sequence and as often as

A subprogram cannot call itself

Write subprograms after the block with M2 or M30

If subprograms are located before the block with M2 or M30

in the part program, they will be executed at least once even if

they are not called

HEIDENHAIN | TNC 320 | Conversational Programming User's Manual | 9/2016