SZGH SZGH-CNC1000MDb Series, Руководство пользователя

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-Shenzhen Guanhong Automation Co.,Ltd.- SZGH-CNC1000MDb Series
- 20 -
Chapter 3 G INSTRCUTIONS
3.1 INTRODUCTION
G instruction consists of instruction address G and its following 1
～
3 bits instruction value,
used for defining the motion mode of tool relative to the workpiece, defining the coordinates and so
on. Refer to G instructions as Table 3.
G
Instruction value(00~999,the leading zero can be omitted)
Instruction address G
A number of following address G determines the meaning of the command for the concerned
block.
G codes are divided into the following two types
Type Meaning
One-shot G code The G code is effective only in the block in which it is specified
Modal G code The G code is effective until another G code of the same group
is specified.
Eg.: G01 and G00 are modal G codes.
3.2 G Code List
1. If CNC enters the clear state ,also when the power is turned on or CNC is reset, the modal G
codes change as follows.
1) G codes marked with “ ” in Table 3 are enabled ,which is initial modal codes.
2) When system is cleared due to power-on or reset,which ever specified, either G20 or G21 ,
remains effective.
2. G codes of group 00 are single-shot G codes.
3. G codes of different groups can be specified in the same block.
If G codes of the same group are specified in the same block,the G code specified last is valid.
4. G codes of different groups can be specified in the same block.
If G codes of the same group are specified in the same block, the G code specified last is valid.
5. If a G code of group 01 is specified in a canned cycle, the canned cycle is canceled in the same
way as when a G80 command is specified. G codes of group 01 are not affected by G codes for
specifying a canned cycle.
6. G codes are displayed for each group number.
7. When a G code not listed in the G code list is specified or a G code that corresponding
function is disabled.