G90: Absolute Specification; G91: Incremental Specification - Omron CS1W-MC221 - 02-2008 Operation Manual

G-language Commands
Programming Example

7-3-31 G90: ABSOLUTE SPECIFICATION

Format
Operands
Description
Programming Example

7-3-32 G91: INCREMENTAL SPECIFICATION

430
The following example shows how G79 is executed after axis operation is
completed in Pass Mode.
: :
N020 G10
N021 G01
N022 G01
N023 G79
: :
Speed
Specifies the use of absolute coordinates in axis operations.
G90
None
This command specifies that the absolute coordinate system for each axis is
to be used when for axis positioning. After this command is executed, the
coordinate data in axis movement commands is treated as absolute coordi-
nate data.
In addition to G90, the absolute coordinate system is put into effect when a
REFERENCE ORIGIN RETURN (G26), WORKPIECE ORIGIN RETURN
(G27), or ORIGIN SEARCH (G28) command is executed.
The following example shows positioning with absolute coordinate data.
:
N010 G90
N011 G01
N012 G01
:
Y
70
50
20
50
Specifies the use of relative coordinates in axis operations.
Sets Pass Mode.
X100 Y100 F100
X200 F200
Executed after N022 is completed.
Execution of G79
:
X50 Y50 F100
X100 Y20
:
The axis operation would be performed on
this path with incremental specification.
100 150
Section 7-3
Time
X