3 G/M Codes
3 - 1
3 G/M Codes
3.1 Command codes
The previous chapters have introduced the format of part programs. This chapter will
describe the command codes of the H6D-T series and provide simple examples for each
command to explain its applications.
The definition of G-codes in the H6D-T series is similar to other controllers. They are
classified into two groups: (Table 3-1)
1. One-shot G-codes
A One-shot G-code (has no * mark in the table) is valid only in the defined program
block.
Ex: N10 G0 X30.000 Z40.000
N20 G4 X2.000 G4 is a one-shot G-code and is valid only
in this block.
N30 G1 X20.000 Z50.000 G04 no longer valid in this block.
2. Modal G-codes
A Modal G-code (has a * mark in the table) is valid until it is replaced by another
G-code of the same group.
Wherein G00, G01, G02, G03 Same group.
G40, G41, G42 Same group.
G96, G97 Same group.
G98, G99 Same group.
Ex: N10 G0 X30.000 Z5.000 G0 is defined.
N20 X50.000 Z10.000 No G-code defined, G0 remains valid.
N30 G1 X30.000 F0.2 G1 replaces G0 and becomes valid.
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