Skip function

Q: What does Mazak G-code G31 do?

G31 — Skip function on the MAZATROL SmoothX control (INTEGREX e-670H). During linear interpolation by G31, when an external skip signal is inputted, the feed will stop, all remaining commands will be cancelled and then the program will skip to the next block.

Machine-specific. This G-code reference is specific to the Mazak INTEGREX e-670H / e-670H-S with the MAZATROL SmoothX control (EIA/ISO programming manual H747PB0030E). G-code availability depends on fitted options, and groups and behaviour differ between Mazak models and control generations — verify against the manual for your own machine before programming with any code.

What it does

During linear interpolation by G31, when an external skip signal is inputted, the feed will stop, all remaining commands will be cancelled and then the program will skip to the next block.

G31 is one-shot (group 00) — it is valid only in the block where it is entered.

Programming format

G31 Xx Zz Yy Ff ;

Address words

x, y, z : The coordinates of the respective axes. These coordinates are to be designated
using absolute or incremental data.
f : Rate of feed (mm/min)
This command starts linear interpolation, and when an external skip signal is inputted, the feed
will stop, the remaining distance of movement will be cancelled and the next block will be
executed.

Source

Mazak PROGRAMMING MANUAL for EIA/ISO PROGRAM, manual H747PB0030E, section 15-1 Skip Function: G31, p. 3-11, 15-1, 15-3, 15-4. Reference and explanation only — not a reproduction of the manual.

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