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SmithyCNC Programmer’s Reference Manual:M Codes

SmithyCNC Programmer’s Reference Manual: M-Codes

3-2

M-CODE OVERVIEW

In addition to the G-Codes, there is a set of M-Codes (miscellaneous codes) that

are used to to control your machine tool and its auxillary functions.

3.1 M0, M1, M2, M30, M60: Program Stopping and Ending

<sub:M0,-M1,-M2,>

To stop a running program temporarily (regardless of the setting of the optional

stop switch), program M0.

To stop a running program temporarily (but only if the optional stop switch is

on), program M1.

It is OK to program M0 and M1 in MDI mode, but the effect will probably not be

noticeable, because normal beha

vior in MDI mode is to stop after each line of

input, anyway.

To ex

change pal

let shuttles and then stop a running program temporarily

(regardless of the setting of the optional stop switch), program M60.

If a pr

ogram is stopped by an M0, M1, or M60, pressing the cycle start button

will restart the program at the following line.

To end a program, program M2. To exchange pallet shuttles and then end a pro-

gram, program M30. Both of these commands have the following effects.

1. Axis offsets are set to zero (like G92.2) and origin offsets are set to the

default (like G54).

2. S

elected plane is set to CANON_PLANE_XY (like G17).

3. Distance mode is set to MODE_ABSOLUTE (l

e G90).

4. Feed rate mode is set to UNITS_PER_MINUTE (like G94).

5. Feed and speed overrides are set to ON (like M48).

6. Cut

ter compensation is turned of

f (l

e G40).

7. The spindle is stopped (like M5).

8. The current motion mode is set to G_1 (like G1).

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Smithy CNC Mills Bedienungsanleitung Seite 38