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6 MOTION PROGRAMS FOR POSITIONING CONTROL
6.13.27 G90 Absolute value command
Code G90
Function Absolute
value
command
The coordinates command is set as an absolute value command.
Format
9
Locating position
0 X x
;
G
Y y Z z
[Explanation]
(1) In the absolute value command mode, the axes travel to the specified coordinates
position regardless of the current position. The positioning command set after
execution of this command operates with the absolute value from the home
position coordinates.
(2) As this command is modal instruction, it is valid until the incremental value
command mode (G91) is commanded.
(3) The absolute value command mode is selected at a Motion program start.
[Example] G90 X100. Y100. ;
Y
X
50
50
100
100
Current position (50, 50)
(100, 100)
Y
Current position (80, 20)
(100, 100)
Current position coordinates of X50, Y50
50
100
Current position coordinates of X80, Y20
50
100
X
(Unit: mm)
(4) Positioning data can be set by direct setting (numerical value) and indirect setting
(variable : #
).
Содержание Q172HCPU
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Страница 79: ...3 44 3 MOTION DEDICATED PLC INSTRUCTION MEMO ...
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