Chapter 3 G Command
23
I Programming
CHAPTER 3 G COMMAND
3.1 G Command Brief
The G command is composed by the command address G and the 1 to 3 digits
command value after the command G. Many kinds of operations are specified such as tool
movement relative to workpiece, coordinate set, etc. See Table 3-1 for G commands.
The G command words can be classified into 16 groups such as 00, 01, 02, 03, 05, 06, 07, 08, 09,
10 ,12
,
14
,
16
,
17 and 22. They share the same block except for 01 and 00 groups, different groups G
commands can be defined at the same block. The last G command is valid when two or more same group G
commands are introduced at the same block. Different G command groups without common parameter
(command word) can be defined at the same block, and their functions are simultaneously valid regardless
of sequence. If the G command or the optional G command other than Table 3-1 is employed, alarm occurs.
Table 3-1 G command word list
Command word
Group
Function
Remark
G04
Dwell, exact stop
G10
Programmable data input ON
G11
Programmable data input OFF
G07.1 Cylinder
interpolation
G28
Machine zero return
G29
Return from reference point
G30 2
nd
, 3
rd
and 4
th
reference point return
G31 Skip
function
G52 Local
coordination system setting
G53
Machine coordinate system selection
G92
Coordinate system set
G65
00
Macro
Non-modal G
command
G00 (initial G command)
Rapid traverse
G01 Linear
interpolation
G02
Circular interpolation (CW)
G03
Circular interpolation (CCW)
G73 Peck
drilling
cycle
G74
Left-hand (counter) tapping cycle
G80 (initial G command)
Canned cycle cancellation
G81
Drilling cycle (spot drill cycle)
G82
Drilling cycle (counter bore cycle)
G83 Peck
drilling
cycle
G84 Tapping
cycle
G85
01
Boring cycle
Modal G
command
Содержание 980MDc
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